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“填充补浇法”是用浇注的方法,修补锌基合金模具铸造缺陷的最有效的方法。特别适用于异形面缺陷的修补。锌基合金拉延成型模是通过铸造成型的,模具铸出后,往往会出现气孔、砂眼、局部填充不满、裂纹以及人为造成的缺陷。除用环氧塑料或焊接方法修补外,我厂在生产实践中采用“填充补浇法”,效果比较理想。缺陷经过补浇后,修补处牢实、平整,易于修整。现将“填充补浇法”工艺介绍如下:1.在缺陷处不同方位钻孔,并攻丝,然后清理干净。孔径按缺陷处面积大小而定,最好不小于M8,孔深28～30毫米,孔数越多越好,这样冷却后补块牢固(见图1)。
“Fill fill pouring law” is the method of casting, repair zinc-based alloy mold casting defects the most effective way. Especially suitable for the repair of shaped defects. Zinc-based alloy drawing mold is formed by casting, mold casting, there will often be stomatal, trachoma, partial filling dissatisfaction, cracks and man-made defects. In addition to using epoxy plastic or welding repair method, I plant in the production practice using “filling fill pour Law”, the effect is ideal. Defects after pouring, the repair at the prison solid, smooth, easy dressing. Now “filled fill pouring law” process described below: 1 in the defect at different locations drilling, and tapping, and then clean. Pore size by defect size may be, preferably not less than M8, hole depth of 28 to 30 mm, the more the better the number of holes, so cool after the block solid (see Figure 1).