注塑机注射压力达不到不稳定

注塑缺陷,你中招后如何解决的呢?
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注塑缺陷,你中招后如何解决的呢?
注塑常见问题简介,告别中招!流涎a. 材料烘干不彻底或材料受潮b. 预塑速度 (螺杆转速) 太快c. 喷嘴温度太高d. 不好的回料 (粉状)e. 回吸量不够f. 喷嘴接触力不足g. 喷嘴与模具浇口套尺寸不匹配h. 喷嘴接触表面脏 (造成表面不平) 预塑不稳a. 回料比不合理或不稳定b. 背压太低c. 长料杆架桥d. 材料受潮e. 下料处温度不合理(太高)飞边飞边又称溢边、披锋、毛刺等,大多发生在模具的分合位置上,如动模和静模的分型面,滑块的滑配部位、镶件的绝隙、顶杆孔隙等处,飞边在很大程度上是由于模具或机台锁模力失效造成。具体可能有以下几个方面的原因造成:1. 注塑机台原因:机台的最高锁模力不够应选用锁模力够的机台。锁模机铰磨损或锁模油缸密封元件磨损出现滴油或回流而造成锁模力下降。加温系统失控造成实际温度过高应检查热电偶、加热圈等是否有问题。2.注塑模具原因:(1)模具型腔分布不衡或平行度不够造成受力不平衡而造成局部飞边,局部不满,应在不影响制件完整性前提下流道应尽量安置在质量对称中心。(2)模具中活动构件、滑动型芯受力不平衡时会造成飞边。(3)模具排气不良时受压的空气会使模的分型面胀开而出现飞边,应开设良好的排气系统,或在分型面上挖排气沟。3.塑料的流动性过大,或加太多的润滑剂,应适当降低压力、速度、温度等,减小润滑剂的使用量,必要时要选用流动性低的塑料。4.加工、调整方面:(1)设置的温度、压力、速度过高,应采用分段注射。注射时间、保压时间、加料量过多都会造成飞边。(2)调节时,锁模机铰未伸直,或开、锁模时调模螺母经常会动而造成锁模力不足出现飞边。(3)调节头与二极的平行度不够或调节的系统压力过大。5.飞边和制件不满反复出现的原因:(1)塑料原料粒度大小悬殊不均时会使加料份量不定。(2)螺杆的过胶头、过胶圈及过胶垫圈的磨损过大,使熔料可能在螺杆处经与料筒内之间滑行及回流造成飞边或不满。(3)入流口的冷却系统失效,令进料的调。(4)料筒调定的注料量不足,即缓冲垫过小会使射料时多时少而出现飞边或制件不满。 充模不足a. 参数设置不准确 (转压点太高,保压太低,射速太慢,温度 太低) b. 模具脏c. 喷嘴温度过低, 结构不合理d. 止回阀或料筒损坏e. 浇口, 流道尺寸太小f. 不干净的回料 (含杂料)g. 材料受潮h.设备问题(压力不足)I. 射台没对准j. 回吸太小造成止回阀关闭不稳定 不时充模不足a. 射速太低(特别是PA, POM)b. 对大产品,熔体温度不够c. 塑化不均(背压太低,转速太快)d. 喷嘴温度不够e. 止回阀或料筒损坏f. 杂质g. 模具脏h. 材料烘干不彻底或材料受潮I. 射台没对准j. 回吸太小造成止回阀关闭不稳定 焦斑a. 模具脏b. 参数设置不准确 (射速太快)c. 材料烘干不彻底或材料受潮d. 锁模力太大e. 模具问题 (排气不畅)f. 回吸量太大g. 料筒与二接头处不密封 凹陷a. 浇口, 流道尺寸太小b. 喷嘴口太小c. 参数设置不准确(保压太低,保压时间太短,转压点太高,料温或模温太高) d. 塑化不均(背压太低,转速太快)e. 对大产品,熔体温度不够f. 止回阀或料筒损坏g. 射台没对准 产品变形a. 错误的水道连接b. 产品挤压 c. 产品顶出不均d. 冷却时间不够e. 射速太低f. 压力太大造成粘模g. 塑化不均造成内应力h. 模具温度分布不均 尺寸不稳a. 参数控制不稳 (模温, 料温,保压太低或太高, 冷却时间)b. 回料比不合理或不稳定c. 止回阀或料筒损坏d. 回吸太小造成止回阀关闭不稳定 重量不稳定a. 参数设置不准确 (模温, 料温,保压太低或太高, 冷却时间,保 压时间不够) b. 喷嘴温度太低 c. 保压时间太短d. 止回阀或料筒损坏e. 回料比不稳定f. 回吸太小造成止回阀关闭不稳定 产品易断裂a. 熔体温度太高或太低b. 材料湿c. 射速太低或太高d. 模具温度太高或太低e. 熔接痕f. 杂质g. 塑化不均(背压太低,转速太快,回料长料杆)h. 模具锐边i. 不稳定回料比 熔接痕a. 射速太慢b. 熔体温度太低c. 模具温度太低d. 排气不畅d. 色母;塑化不均e.模具,产品设计不合理 表皮分层a. 材料潮湿b. 杂料c.色母有问题 d.射速太快 泛白的原因分析造成注塑制品泛白、雾晕。这是由于气体或空气中的杂质的污染而出现的缺陷。主要解决方法:(1)消除气体的干扰,就意防止杂质的污染。(2)提高料温与模温,分段调节料筒温度,但要防止温度过高而分解。(3)增加注射压力,延长保压时间,提高背压。 射料不满的原因分析造成注塑制品射料不满的主要原因是缺料和注射压力与速度不妥(包括阻力造成压力过于耗损)。可能由以下几个方面的原因导致而成:1.注塑机台原因:机台的塑化量或加热率不定,应选用塑化量与加热功率大的机台;螺杆与料筒或过胶头等的磨损造成回料而出现实际充模量不足;热电偶或发热圈等加热系统故障造成料筒的实际温度过低;注射油缸的密封元件磨损造成漏油或回流,而不能达到所需的注射压力;射嘴内孔过小或射嘴中心度调节不当造成阻力过大而使压力消耗。2.注塑模具原因:1)模具局部或整体的温度过低造成入料困难,应适当提高模温;2)模具的型腔的分布不平衡。制件壁厚过薄造成压力消耗过度而且充模不力。应增加整个制件或局部的壁厚或可在填充不足处的附近,设置辅助流道或浇口解决。3)模具的流道过小造成压力损耗;过大时会出现射胶无力;过于粗糙都会造成制件不满。应适当设置流道的大小,主流道与分流道,浇口之间的过渡或本身的转弯处应用适当的圆弧过渡。4)模具的排气不良。进入型腔的料受到来不及排走的气体压力的阻挡而造成充填不满。可以充分利用螺杆的缝隙排气或降低锁模力利用分型面排气,必要时要开设排气沟道或气孔。 浇口区冷料斑的原因分析冷料斑主要是指制件近浇口处带有雾色或亮色的斑纹,或从浇口出发的宛如若蚯蚓贴在上面的弯曲疤痕,它们由进入型腔的塑料前锋或因过分的保压作用而后来挤进型腔的冷料造成,前锋料因为射咀或流道的冷却作用传去热量,在进入型腔前部分被冷却固化,当通过狭窄的浇口而扩张注入型腔时,形成熔体破裂,紧接着又被后来的热熔料推拥,于是就成了冷料斑。解决方法:(1)冷料井要开设好。还要考虑浇口上的形式、大小和位置,防止料的冷却速度悬殊。(2)射咀中心度要调好,射咀与模具入料上的配合尺寸要设计好,防止漏料或造成有冷料被带入型腔。(3)模具排气度良好。气体的干扰会使浇口出现混浊性的斑纹。(4)提高模温。减慢注射速度,增大注射压力,减低保压与注射时间,减低保压压力。(5)干燥好塑料。少用润滑剂,防止粉料被污染。 相关文章推荐:◆还没找到组织?赶快加入高分子天空群,一起交流吧!加群方法:先加小编为好友(微信号 xiaoshengisme),然后发送消息“高分子天空”给小编,小编将拉您入群,赶紧哦!
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& 注塑件三大常见问题怎么解决?
注塑件三大常见问题怎么解决?
&<strong style="background-color: rgb(95, 156, 239); font-family: font-size: 1 line-height: 1.4; text-align: color: rgb(255, 255, 255); text-decoration: margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">93.注塑件脆裂起因及解决办法<fieldset style="margin: 0.8em 0px 0.5 padding: 0 max-width: 100%; min-width: 0 color: rgb(62, 62, 62); font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans- font-size: 16 line-height: 25 border: 0 overflow: box-sizing: border-box !im word-wrap: break-word !im"><section style="margin: 0 padding: 0 max-width: 100%; box-sizing: border- display: inline- font-size: 1 font-family: font-weight: text-align: text-decoration: color: rgb(255, 255, 255); border-color: rgb(95, 156, 239); word-wrap: break-word !im"><section style="margin: 0 padding: 0 max-width: 100%; display: inline- height: 2 width: 0.5 vertical-align: border-left-width: 0.5 border-left-style: border-left-color: rgb(95, 156, 239); font-size: 1 border-right-color: rgb(95, 156, 239); box-sizing: border-box !im word-wrap: break-word !im border-top-width: 1em !im border-top-style: solid !im border-top-color: transparent !im border-bottom-width: 1em !im border-bottom-style: solid !im border-bottom-color: transparent !im">
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<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><strong style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">描述:注塑件在顶出时断裂,或在处理时容易断掉或裂开。
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<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><strong style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">可能的起因:
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<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><strong style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">建议使用的补救方法:
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<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">注塑机
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<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">A<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、熔胶温度太低。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">在射料缸上给后区和射咀增温。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">降低螺杆速度或高速转以获得正确的螺杆表面速度。
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<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">B<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、塑料在射料缸内降解,引起塑料分子结构的破裂。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">在所有区域降射料缸的温度。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">降低背压。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">使用排气的射料缸保证排出孔正确运行且每个孔设定正确温度。
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<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">C<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、模具填充速度太慢。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">增加模具温度。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">在注塑机上保持稳定的垫料。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="568" colspan="2" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">模具
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">A<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、模具表面太冷。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">增加模具温度。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">限制冷却体流过模具的速度。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">B<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、流道和浇口太小,在模具填充中
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">产生过度的剪毁率。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">使用全圆流道并增加流道和浇口的尺寸
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">以便在模具填充阶段提供可接受的剪切率。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="568" colspan="2" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">塑料
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">A<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、注塑件的压力没有恰当的释放出来或没被处理。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">将注塑件退火,若是尼龙塑料产品,将其浸入温水中。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">B<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、注塑件并不充分适合特定的塑料。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">若可能的话就重新设计产品以改善薄弱断面。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">C<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、添加了过多的回用料。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">减少回用料与新塑料混合的数量。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">D<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、异类的塑料杂质。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">检查塑料中的杂质。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">彻底清洁射料缸。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">将料斗或料盛装料机拆下并彻底清洁。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-style:
border-color: rgb(221, 221, 221) white rgb(221, 221, 221) rgb(221, 221, 221); max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">E<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、回用料的质量可能较差。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border: max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">分离回用料并仔细检查杂质的迹象。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">保证从回用料中把粉尘去掉。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">检查是否严格执行回用程序。
<fieldset style="margin: 0.8em 0px 0.5 padding: 0 max-width: 100%; min-width: 0 color: rgb(62, 62, 62); font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans- font-size: 16 line-height: 25 border: 0 overflow: box-sizing: border-box !im word-wrap: break-word !im"><section style="margin: 0 padding: 0 max-width: 100%; box-sizing: border- display: inline- font-size: 1 font-family: font-weight: text-align: text-decoration: color: rgb(255, 255, 255); border-color: rgb(95, 156, 239); word-wrap: break-word !im"><section style="margin: 0 padding: 0.3em 0.5 max-width: 100%; height: 2 display: inline- text-align: font-size: 1 line-height: 1.4; vertical-align: font-family: background-color: rgb(95, 156, 239); box-sizing: border-box !im word-wrap: break-word !im"><section style="margin: 0 padding: 0 max-width: 100%; box-sizing: border- word-wrap: break-word !im"><strong style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">94.注塑件气泡(困气)起因及解决办法<section style="margin: 0 padding: 0 max-width: 100%; display: inline- height: 2 width: 0.5 vertical-align: border-left-width: 0.5 border-left-style: border-left-color: rgb(95, 156, 239); font-size: 1 border-right-color: rgb(95, 156, 239); box-sizing: border-box !im word-wrap: break-word !im border-top-width: 1em !im border-top-style: solid !im border-top-color: transparent !im border-bottom-width: 1em !im border-bottom-style: solid !im border-bottom-color: transparent !im">
<table cellspacing="0" cellpadding="0" style="margin: 0px 0px 10 padding: 0 border-collapse: width: 670 max-width: 100%; color: rgb(62, 62, 62); font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans- font-size: 16 line-height: 25 box-sizing: border-box !im word-wrap: break-word !im">
<tbody style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="568" colspan="2" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><strong style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">描述:如果熔胶中含有气体(挥发性物质),那么保压消失时在注塑件中也会含有气泡。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><strong style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">可能的起因:
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><strong style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">建议使用的补救方法:
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="568" colspan="2" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">注塑机
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">A<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、困在射料缸中的空气。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">低射料缸温度,特别是后区的。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">增高背压。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">降低螺杆速度。减少倒索量。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">B<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、填充压力不足够。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">增高注塑压力。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">C<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、模具填充速度太快。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">降低注塑速度。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="568" colspan="2" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">模具
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">A<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、模具排气不足。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">在模具中插入排气口或增加现有排气口的深度。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-bottom-width: 3 border-style: n border-color: rgb(221, 221, 221) white white rgb(221, 221, 221); max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">B<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、模具内塑料流动不平均使空气困
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">在其中。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">在模具上使用真空排气方法。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">更改浇口的位置。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">增加流道直径。
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="568" colspan="2" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-bottom-width: 3 border-style: border-color: rgb(221, 221, 221) rgb(221, 221, 221) max-width: 100%; background-color: rgb(242, 242, 242); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; color: box-sizing: border-box !im word-wrap: break-word !im">塑料
<tr style="margin: 0 padding: 0 max-width: 100%; box-sizing: border-box !im word-wrap: break-word !im">
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border-right-width: 3 border-style:
border-color: rgb(221, 221, 221) white rgb(221, 221, 221) rgb(221, 221, 221); max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im">A<span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">、塑料进入暖空气的工场时水份在
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">冷塑料上凝结。
<td width="284" valign="top" style="margin: 0 padding: 0px 7 word-break: break- border: max-width: 100%; background-color: rgb(204, 204, 204); word-wrap: break-word !im box-sizing: border-box !im">
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">烘干塑料。
<p style="margin: 0 padding: 0 max-width: 100%; clear: min-height: 1 white-space: pre- box-sizing: border-box !im word-wrap: break-word !im"><span style="margin: 0 padding: 0 max-width: 100%; font-family: 宋体; box-sizing: border-box !im word-wrap: break-word !im">在注塑前将聚合物存放在工场至少六小时。
昆山恒成塑化有限公司&创建于2001年,注册于2012年。经过多年的努力经营,本公司实力雄厚、重信用、守合同、保证产品质量,并以多品种经营特色和薄利多销的原则,赢得了广大客户的信任。本公司主要经营批发的POM、PP、PA66、PET、PC+ABS、PC、PMMA、ABS畅销消费者市场,在消费者当中享有较高的地位。公司与多家零售商和代理商建立了长期稳定的合作关系,货源稳定、保证质量!
&&&我公司产品在昆山仕泰隆塑料城设有实体店销售,塑料原料原产原厂包装,质量保证,买家可以完全放心。店铺上图型号有限,有些产品型号没有上架,买家如有所需产品型号可以询问是否有货,欢迎询价(*^__^*)
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&&旺旺:xiayanmei恒成塑化
&&地址:中国&江苏&昆山市&陆家镇仕泰隆J栋5号
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