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自20世纪90年代以来,我国塑料模具技术的发展进入了一个新的阶段。以建材模具产品为代表的大型、精密、复杂和高寿命模具,已能实现国内自行设计、制造,已部分替代进口模具;电加工、数控加工和快速经济制模、护坡砖模具技术已进入成熟阶段。

Since 1990s, the development of plastic mold technology in China has entered a new stage. The large, precise, complex and high life mold, represented by the building materials and mould products, can be designed and manufactured at home, and have been partially replaced by the imported moulds. The technology of electric machining, NC machining and rapid economic mold making and slope protection have already entered the mature stage.

护坡砖模具的选材大部分选择塑料模具,或者说聚丙烯pp为原料的,同时极少数的选择为abs,塑料模具本身带有了自己独特的特点,可能是它的颜色,纯原料的通常为白色,如果掺有杂质,颜色会有变化,变得发黄,不同材料的模具有不同的特点,在选择使用模具时,也要有所区别。

Most of the selection of slope protection brick die selection plastic mold, or polypropylene PP as raw material, at the same time a very small selection of ABS, the plastic mold itself has its own unique features, it may be its color, the pure raw material is usually white, if mixed with impurities, the color will change, become yellow, different materials of different moulds are different Characteristics, in choosing the use of molds, there are also differences.

现在的护坡砖模具分为热塑性和热固性,这个区分是比较方便的,我们使用打火机灼烧一下,如果受热后变得柔软的就是热塑性的的,如果变为液体的就是热固性的。还就就是模具从外观上看,越透明越好,同时模具不要有气泡等凹凸起。还有一项就是模具要分清是塑料的还是橡胶的,一般通过拉伸就能判断。

Now the slope brick mold is divided into thermoplasticity and thermosetting. This distinction is more convenient. We use a lighter to burn it. If the heat is heated, it is thermoplastic. If it is changed into liquid, it is thermosetting. It is also the appearance of the mold, the more transparent the better, while the mold does not have bubbles and other concave convex. Another point is whether the mold should be classified as plastic or rubber, which can be judged by stretching.