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为了减少热处理废品,不断总结经验,改进操作技术,以减少工件的变形和开裂,现就行之有效几项介绍如下。一、“油-水-油”冷却法塑料模的浇口套(见图1)为T10A淬火件。在工作时,与注射机高温喷嘴接触碰撞,并承受注塑料的摩擦应力和充型的高压,故技术要求严格。由于此件外形薄厚悬殊,采用常规水淬油冷时,螺丝孔处均产生淬火裂纹,’因此它成了易损关键件。虽采用碱槽等温可避免产生废品,但小批量生产费
In order to reduce the heat treatment of waste products, continue to sum up experience and improve the operation of technology to reduce the deformation and cracking of the workpiece, now some of the effective introduction below. First, the “oil - water - oil” cooling plastic mold gate sleeve (see Figure 1) T10A quenching pieces. At work, contact with high temperature nozzle injection machine collision, and bear the injection molding friction and high pressure filling, so the technical requirements. Because of the thinness of the shape of this great disparity, the use of conventional water quenching and oil cooling, screw holes are generated quenching cracks, ’so it has become the key parts vulnerable. Although the use of alkali tank isothermal to avoid waste, but small batch production costs