保定模具加工厂-护坡塑料模具,六角护坡塑料模具

外观鉴别

Appearance discrimination

通过观察的外观，可初步护坡塑料模具鉴别出护坡塑料模具制品所属大类：热塑性护坡塑料模具，热固性护坡塑料模具或弹性体护坡塑料模具。一般热塑性护坡塑料模具有结晶和无定形两类。结晶性塑料外观呈半透明，乳浊状或不透明，只有在薄膜状态呈透明状，硬度从柔软到角质。无定形一般为无色，在不加添加剂时为全透明，硬度从硬于角质橡胶状。热固性护坡塑料模具通常含有填且不透料明，如不含填料时为透明。弹性体具橡胶状手感，有一定的拉伸率。

By observing the appearance, the plastic mould for slope protection can be preliminarily classified, and the plastic mould products of slope protection are classified as follows: thermoplastic slope protection plastic mould, thermosetting slope protection plastic mould or elastic body slope protection plastic mould. There are two kinds of plastic mould for general plastic slope protection. Crystalline plastic is translucent, opaque or opaque, only in the film state is transparent, hardness from soft to horny. Amorphous is generally colorless, completely transparent without additives, hardness from hard to horny rubber. Thermosetting slope protection plastic mold usually contains filling and not transparent, if without filler is transparent. The elastomer has a rubber like handle and has a certain tensile ratio.

加热鉴别

Heating discrimination

上述三类护坡塑料模具的加热特征也是各不相同的，通过加热的方法可以鉴别。热塑性护坡塑料模具加热时软化，易熔融，且熔融时变得透明，常能从熔体拉出丝来，通常易于热合。热固性护坡塑料模具加热至材料化学分解前，保持其原有硬度不软化，尺寸较稳定，至分解温度炭化。弹性体加热时，直到化学分解温度前，不发生流动，至分解温度材料分解炭化。

The heating characteristics of the three kinds of slope protection plastic mould are different, and can be identified by heating method. The plastic mould for thermoplastic slope protection is easy to melt when heated, and becomes transparent when melted. It can be pulled out of the melt easily and is usually easy to heat. The plastic mould for thermosetting slope protection is heated until the chemical decomposition of the material, and the original hardness is not softened, the size is stable, and the carbonization temperature is carbonized. When the elastomer is heated, the flow does not occur until the chemical decomposition temperature, and the decomposition temperature of the material is carbonized.