描述

聚甲基丙烯酸甲酯塑料注射

PMMA塑料材料

优良的透明度和优异的耐老化性

PMMA具有重量轻、成本低、易于成型的优点

PMMA塑料注射

产品细节

聚甲基丙烯酸甲酯塑料注射

模具和浇口设计

聚甲基丙烯酸甲酯/塑料流动性差，抗脱模性高。为了防止回流不良和脱模不良，模具磨损或冷却不均匀会导致塑料成型不良，导致表面缺陷和劣化。如果模具不能适应透明PMM塑料的特性，

在成型过程中，就不可能调整和改善成型条件，以达到生产优质产品的目的。一般来说，模具设计应注意以下几点：

a）壁厚应尽可能均匀，拔模角度应足够大

b）过渡部分应逐渐平稳过渡，以防止尖角和锐边

c）浇口：流道应尽可能宽和短，浇口位置应根据收缩冷凝过程设置，必要时应添加冷料

d）模具表面应光滑，粗糙度低（最好低于0.8）

e）通风：通风槽必须足以及时排出熔体中的空气和气体

f）壁厚不宜太薄，一般不小于1mm

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PMMA Plastic Injection

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PMMA Plastic Material
Excellent transparency and outstanding aging resistance
PMMA has the advantages of light weight, low cost and easy molding.

PMMA Plastic Injection

Product Details

PMMA plastic injection

Mold and gate design

PMM/plastic has poor fluidity and high demolding resistance. In order to prevent poor flow back and poor demolding, mold wear or cooling

Unevenness causes poor plastic molding, resulting in surface defects and deterioration. If the mold cannot adapt to the characteristics of transparent PMM plastic,

In the molding process, it is impossible to adjust and improve the molding conditions to achieve the goal of good products. Generally, you should pay attention to the mold design

The following points:

a) The wall thickness should be as uniform as possible, and the draft angle should be large enough;

b) The transition part should be gradually and smoothly transitioned to prevent sharp corners and sharp edges;

c) Gate: The runner should be as wide and short as possible, and the gate position should be set according to the shrinkage condensation process, and cold material should be added if necessary

well;

d) The surface of the mold should be smooth, with low roughness (preferably lower than 0.8);

e) Vent: The vent slot must be sufficient to discharge the air and gas in the melt in a timely manner;

f) The wall thickness should not be too thin, generally not less than 1mm.

ContactnowformoredetailsaboutPMMA plastic injection.

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