咨询热线:

0531-88771136

您的当前位置: 首页 > 新闻中心 > 正文

如何解决塑料beplay全站app安卓生产时出现的翘曲变形?

来源:http://www.jnhjgs.cn     发布时间:2020-07-03 17:31:04    点击:

  塑料beplay全站app安卓会出现翘曲现象的解决方法 ,我们一般增加保压,延长冷却时间来解决,,当然一人有一些产品本身就容易变形的,是很难控制的,调机工艺要非常高SINO还可以在修改产品增加加强筋来解决。
  To solve the problem of warpage in plastic mold, we usually increase the pressure holding and extend the cooling time to solve this problem. Of course, if one person has some products, it is easy to deform, which is very difficult to control. The adjustment process should be very high, and the Sino can also be solved by adding reinforcing ribs in the modified products.
  由于塑料成型时流动方向的收缩率比垂直方向的大,使制件各向收缩率不同而翘曲,又由于注射充模时不可避免地在制件内部残留有较大的内应力而引起翘曲,这些都是高应力取向造成的变形的表现。所以从根本上说,设计决定了制件的翘曲倾向,要通过变更成型条件来抑制这种倾向是十分困难的,更终解决问题必须从beplay全站app安卓设计和改良着手。济南beplay全站app安卓为您具体分析如下:
  Because the shrinkage rate in the flow direction is larger than that in the vertical direction, the parts will warp due to different shrinkage rates in each direction, and the warpage will inevitably be caused by the residual internal stress in the parts during the injection filling process. These are the manifestations of deformation caused by high stress orientation. Therefore, fundamentally speaking, the design determines the warpage tendency of parts. It is very difficult to restrain this tendency by changing the forming conditions. The final solution to the problem must start with the mold design and improvement. Jinan mold for your specific analysis as follows:
  一.beplay全站app安卓方面:
  1、 Mold aspect:
  1.制件的厚度、质量要均匀。
  1. The thickness and quality of the products should be uniform.
  2.冷却系统的设计要使beplay全站app安卓型腔各部分温度均匀,浇注系统要使料流对称避免因流动方向、收缩率不同而造成翘曲,适当加粗较难成型部份的分流道、主流道,尽量消除型腔内的密度差、压力差、温度差。
  2. The design of the cooling system should make the temperature of each part of the mold cavity uniform, the gating system should make the material flow symmetrical, avoid warping due to the different flow direction and shrinkage rate, appropriately thicken the shunt channel and main channel of the difficult part, and try to eliminate the density difference, pressure difference and temperature difference in the mold cavity.
  3.制件厚薄的过渡区及转角要足够圆滑,要有良好的脱模性,如增加脱模余度,改善模面的抛光,顶出系统要保持平衡。
  3. The transition zone and corner of the workpiece thickness should be smooth enough and have good demoulding performance. For example, increase the stripping redundancy, improve the polishing of the die surface, and keep the ejection system balanced.
  4.排气要良好。
  4. Exhaust well.
  5.增加制件壁厚或增加抗翘曲方向,由加强筋来增强制件抗翘曲能力。
  5. By increasing the wall thickness or increasing the anti warping direction, the anti warping ability of the part can be enhanced by reinforcing rib.
  6.beplay全站app安卓所用的材料强度不足。
  6. The strength of the material used in the mould is insufficient.
                                   济南beplay全站app安卓
  二.塑料方面:
  2、 For Plastics:
  结晶型比非结晶型塑料出现的翘曲变形机会多,加之结晶型塑料可利用结晶度随冷却速度增大而降低,收缩率变小的结晶过程来矫正翘曲变形。
  In addition, the crystallized plastics can use the crystallization process that the crystallinity decreases with the increase of cooling rate and the shrinkage rate decreases to correct the warpage deformation.
  三.加工方面:
  3、 Processing:
  1.注射压力太高,保压时间太长,熔料温度太低速度太快会造成内应力增加而出现翘曲变形。
  1. If the injection pressure is too high, the holding time is too long, the melting temperature is too low and the speed is too fast, the internal stress will increase and the warpage will appear.
  2.beplay全站app安卓温度过高,冷却时间过短,使脱模时的制件过热而出现顶出变形。
  2. The mold temperature is too high and the cooling time is too short, so that the parts are overheated and the ejection deformation occurs.
  3.在保持限度充料量下减少螺杆转速和背压降低密度来限制内应力的产生。
  3. Reduce the screw speed and back pressure and reduce the density to limit the internal stress while keeping the minimum charge.
  4.必要时可对容易翘曲变形的制件进行beplay全站app安卓软性定形或脱模后进行退米处理。
  4. If necessary, soft setting or demoulding can be carried out for the parts which are easy to warp and deform.
  以上是关于解决塑料beplay全站app安卓生产时出现的翘曲变形的方法介绍,希望对您有所帮助,想要了解更多内容欢迎咨询济南beplay全站app安卓http://www.jnhjgs.cn官网。
  The above is about the solution of plastic mold production warpage deformation method introduction, hope to help you, want to know more content, welcome to consult Jinan mold http://www.jnhjgs.cn Official website.
联系我们 contact

山东济南beplay全站app安卓_铝合金压铸厂-济南宏捷beplay全站app安卓有限公司

电话1:13173017488

电话2:18615459955

传真:0531-88771136

邮箱:hlm369@126.com

地址:山东省济南市大桥镇大王村北跨商务中心后三层白楼

山东济南beplay全站app安卓_铝合金压铸厂-济南宏捷beplay全站app安卓有限公司 手机: 13173017488 咨询热线: 0531-88771136 咨询热线:18615459955 邮箱:hlm369@126.com

公司地址: 山东省济南市大桥镇大王村北跨商务中心后三层白楼