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在各种电力机车电器部件中,大量采用了4330酚醛玻璃纤维压塑料制品,过去一直是采用传统的直压工艺加工,虽然可满足一般产品的要求,但对一些精度要求高、形状复杂的产品,以及带有多方向金属嵌件的产品则难以加工。为此,我们对4330盼醛玻璃纤维压塑料的压制工艺作了改进,以压注工艺取代直压工艺,现就压注工艺作一简要介绍。一、概述如图1所示,将4330酚醛玻璃纤维压塑料装在模具外的料腔内,将其加热到一定温度(120～150℃),并施加一定的压力(400～500公斤/厘米~2),4330酚醛玻璃纤维压塑料即由浇注系统压至型腔,再保压一定时间即可取出产品。
In a variety of electric locomotive electrical components, a large number of 4330 phenolic glass fiber pressure plastic products, the past has been the use of the traditional direct pressure process, although to meet the requirements of general products, but for some high precision, complex shape products , And products with multi-directional metal inserts are difficult to machine. To this end, we 4330 hope aldehyde glass fiber compression molding process has been improved to pressure injection process instead of direct pressure process, the injection process is now a brief introduction. First, an overview As shown in Figure 1, the 4330 phenolic glass fiber pressure plastic material installed in the mold cavity, heated to a certain temperature (120 ~ 150 ℃), and the application of a certain pressure (400 ~ 500 kg / cm ~ 2), 4330 phenolic glass fiber pressure plastic that is pressed into the cavity by the casting system, and then holding pressure for a certain time to remove the product.