电力检查井模具是现在铁路,高速公路,河道等工程建设的必备工具,其生产技术的发展关系到了,建设成本和经济发展,因此,是我国经济发展中,一个不容忽视的问题。塑料材料成型加工成制品,首要的问题是塑料物料可成型性,即成型加工的难易程度。这不仅与本身的物理、化学和力学特性有关,而且与工艺过程、物料塑化、流动、充模的工艺条件有关。
Power inspection well mould is the necessary tool for the construction of railway, highway, river and other projects. The development of its production technology is related to the construction cost and economic development. Therefore, it is a problem that can not be ignored in China's economic development. The primary problem of plastic material forming into products is the formability of plastic materials, that is, the difficulty of molding. This is not only related to its physical, chemical and mechanical properties, but also to the technological process, material plasticization, flow and mold filling conditions.
调湿处理主要用于聚丙烯为基材的电力检查井模具。因为聚丙烯塑料制品在脱模时,在高温下接触空气容易氧化变色。另外,这类塑料制品放在热水中调湿处理,不仅隔绝空气,防止氧化,而且还可加速达到吸湿平衡,稳定其尺寸,故称为调湿处理。经过调湿处理的州苗木 保定通风管道 丝网立柱模具 尼龙输送带 保定防水 保定空压机 高碑店养老院电力检查井模具,还可以改善电力检查井模具的韧性,使冲击强度和拉伸强度有所提高。调湿处理的时间取决与模具的基材、形状与壁厚和基材结晶度大小,达到调湿处理时间后,应缓慢冷却至室温。
The humidity control treatment is mainly used for the power inspection well mold with polypropylene as the base material. Because polypropylene plastic products in demoulding, contact with air at high temperature is easy to oxidize and discolor. In addition, this kind of plastic products are placed in hot water for moisture treatment, not only to isolate air and prevent oxidation, but also to accelerate the balance of moisture absorption and stabilize its size, so it is called humidity control. The toughness of the power inspection well die can be improved after the humidity control treatment, so that the impact strength and tensile strength are improved. The time of humidity control treatment depends on the base material, shape and wall thickness of the mold and the crystallinity of the base material. After reaching the time of humidity control treatment, it should be slowly cooled to room temperature