北京塞车pk10全天计划网页版

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32px;line-height: 27px;background: white"><strong><span style="font-size:21px;font-family:宋体;color:#2F2F2F">一、造成此缺陷的原因</span></strong></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(1)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">熔融温度不是太高就是太低。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(2)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">模腔内塑料不足。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(3)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">冷却阶段时接触塑料的面过热。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(4)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">流道不合理、浇口截面过小。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(5)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">模温是否与塑料特性相适应。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(6)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">产品结构不合理(加强进古过高,过厚,明显厚薄不一).</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(7)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">冷却效果不好,产品脱模后继续收缩。</span></p><p style="text-indent: 32px;line-height: 27px;background: white"><strong><span style="font-size:21px;font-family:宋体;color:#2F2F2F">二、补救方法</span></strong></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(1)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">调整射料缸温度。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(2)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">调整螺杆速度以获得正确的螺杆表面速度。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(3)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">增加注塑量。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(4)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">保 证使用正确的垫料;增加螺杆向前时间;增加注塑压力;增加注塑速度。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(5)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">检查止流阀是否安装正确,因为非正常运行会引致压力流失。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(6)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">降低北京塞车pk10全天计划网页版表面温度。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(7)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">矫正流道避免压力损失过大;根据实际需要,适当扩大截面尺寸。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(8)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">根据所用塑料的特性及产品结构适当控制模温。</span></p><p style="margin: 13px 0;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(9)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">在允许的情况下改善产品结构。</span></p><p style="margin: 10px 0 13px;text-indent: 32px;line-height: 27px;background: white"><span style="font-size:21px;font-family:宋体;color:#2F2F2F">(10)</span><span style="font-size:21px;font-family:宋体;color:#2F2F2F">设法让产品有足够的冷却。</span></p><p><br/></p></p></div> <div class="relevant_new"> <h3 class="left_h3"><span>相关新闻</span></h3> <ul class="right_new"> <li><a href="/bmV3cy80XzM4Nw==.html" title="浅谈塑料收缩率和北京塞车pk10全天计划网页版尺寸的关系">浅谈塑料收缩率和北京塞车pk10全天计划网页版尺寸的关系</a><span class="news_time">2019-05-24</span></li><li><a href="/bmV3cy80XzM2NQ==.html" title="INS技术在汽车内饰成型中的应用">INS技术在汽车内饰成型中的应用</a><span class="news_time">2019-05-20</span></li><li><a href="/bmV3cy80XzM1Mw==.html" title="懂了这些鉴别方法,轻松区分各种废塑料">懂了这些鉴别方法,轻松区分各种废塑料</a><span class="news_time">2019-03-07</span></li><li><a href="/bmV3cy80XzM1Mg==.html" 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