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山东模具加工过程中影响模具冷却的因素有哪些?

来源:http://www.jnhjgs.cn     发布时间:2020-12-23 18:04:16    点击:

模具使注射进入的热塑料成型为所要的制品。为了能够顶出,制品必须能够承受顶出力,且不发生变形。正因为如此,顶出时塑料温度必须比注射时的要低,但不必完全冷下来。设计者应知道成型周期相当大的部分,有时可占到成型周期的80%,要用于冷却。因而对于生产率要求较高的模具,将这种“损失”时间控制到小是非常有必要的。然而,在设计模具冷却系统时,还有很多其他因素必须考虑。
The mold makes the injection into the Thermoplastics into the desired product. In order to be able to eject, the product must be able to withstand the jacking force without deformation. Because of this, the temperature of the plastic during ejection must be lower than that for injection, but it does not have to be completely cold. Designers should know that a considerable part of the molding cycle, sometimes 80% of the molding cycle, is used for cooling. Therefore, it is very necessary to control the "lost" time to a small extent for the dies with high productivity requirements. However, there are many other factors that must be considered when designing the mold cooling system.
影响山东模具冷却的因素:
The factors that affect the cooling of mould in Shandong Province are as follows
①从“入口”到“出口”,冷却介质的温升;
① Temperature rise of cooling medium from "inlet" to "outlet";
②从“入口”到“出口”,冷却介质的流量,冷却介质的化学成分;
② From "inlet" to "outlet", flow rate of cooling medium and chemical composition of cooling medium;
                             山东模具
③模具零件的导热率;
③ Thermal conductivity of mold parts;
④从注射到顶出,塑料的温差;
④ The temperature difference of plastic from injection to ejection;
⑤流道系统(尺寸,布局);
⑤ Runner system (size, layout);
⑥流道类型(热流道或冷流道);
⑥ Runner type (hot runner or cold runner);
⑦与成型制品直接接触部件内的冷却管道(尺寸,布局);
⑦ Cooling pipes in parts in direct contact with molded products (size, layout);
⑧模板中的冷却管道的尺寸和布局;
⑧ Size and layout of cooling pipes in formwork;
⑨进出软管的尺寸和数量。
⑨ Size and quantity of inlet and outlet hose.
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