100%纯材料硬质缩醛黑色POM塑料棒100% Pure Material Rigid Acetal Black POM For Plastic Rod

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100%纯材料硬质缩醛黑色POM塑料棒

产品名称:最佳成型POM

颜色:根据需要

优点:

价格有竞争力,质量高,交货及时,免费样品

环保

高耐热性,高抗冲击性

无任何杂质

可使用玻璃纤维/韧性/阻燃剂/紫外线稳定剂增强

包装:25kg/袋(也可定制)

描述

100%纯材料硬质缩醛黑色POM塑料棒

产品名称:最佳成型POM

颜色:根据需要

优点:

价格有竞争力,质量高,交货及时,免费样品

环保

高耐热性,高抗冲击性

无任何杂质

可使用玻璃纤维/韧性/阻燃剂/紫外线稳定剂增强

包装:25kg/袋(也可定制)

100%纯材料硬质缩醛黑色POM塑料棒

<重点
2)高结晶度和质量收缩率:
聚甲醛结晶度高达70%至80%,成型过程中熔融时吸收大量热量。当熔体从熔融状态冷却到固态时,其体积收缩率大于其他塑料(当熔体在室温下从熔点以上30℃冷却到25℃时,比体积变为21%),因此在处理厚壁时,产品必须适当收缩
3)热稳定性差:
聚甲醛在240℃会严重分解,颜色会变黄。在210℃下,停留时间不应超过20分钟。在保证成形过程中材料流动的前提下,应尽量采用较低的成形温度和较短的成形周期
4)固化速度:
聚甲醛的固化温度约为160℃,固化速度快于熔化速度,因此可以快速脱模,缩短冷却时间。由于固化速度快,产品表面容易出现流痕、焊痕等缺陷,在加工过程中应采取相应措施
5)吸水率低:
聚甲醛吸水率约为0.25%,水分的存在对其性能和成型过程影响不大,因此成型前可能不会干燥,但当颗粒表面吸附水分时,会改善产品。从外观上看,它还需要干燥

是塑料棒制造商的专业100%纯材料硬质缩醛黑色pom之一,您可以从我们工厂以优惠的价格订购塑料棒用100%纯材料硬质缩醛黑色pom

100% Pure Material Rigid Acetal Black POM For Plastic Rod

Product name: Best formability POM
Color: As required
Advantage:
Competitive price,high quality,on-time delivery,free sample
Environment friendly
High Heat Resistance,High impact resistance
Without any impurity
Can be reinforced with the glass fiber/toughness/flame retardant/UV stabilizer
Packing: 25kg/bag (also can be customized)

100% Pure Material Rigid Acetal Black POM For Plastic Rod

Product Details

100% pure material rigid acetal black POM for plastic rod

POM plastics
1) melting point is obvious:
POM is a high density, high crystallinity linear polymer with obvious melting point.
2) High crystallinity and mass shrinkage:
POM crystallinity is as high as 70% to 80%, and a large amount of heat is absorbed when melting during molding. When the melt is cooled from the molten state to the solid state, its volume shrinkage is greater than that of other plastics (when the melt is cooled from 30℃ above the melting point to 25℃ at room temperature, the specific volume changes to 21%), so the product must be properly retracted when dealing with thick walls.
3) poor thermal stability:
POM will decompose seriously ℃240 and the color will turn yellow. At 210℃, the residence time should not exceed 20 minutes. Under the premise of ensuring the material flow in the forming process, the lower forming temperature and the shorter forming period should be adopted as far as possible.
4) curing speed:
The curing temperature of the POM is about 160℃, and the curing speed is faster than the melting speed, so it can quickly demoulding and shorten the cooling time. Due to the fast curing speed, the product surface is prone to flow marks, welding marks and other defects, the corresponding measures should be taken in the process of processing.
5) low water absorption:
POM water absorption is about 0.25%, the existence of moisture has little effect on its properties and molding process, so it may not dry before molding, but it will improve the product when the particle surface adsorbs moisture. from the appearance, it still need to dry.

is one of the professional 100% pure material rigid acetal black pom for plastic rod manufacturers, you can order high quality 100% pure material rigid acetal black pom for plastic rod at good price from our factory.

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