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木模制作完以后,下一道工序就是刷油漆。刷油漆对大、中件木模较适用,而对复杂小件就显得麻烦,也不经济。我厂以生产小铸件为主,多年来一直利用在木模上刷石蜡的方法,效果很好。具体做法是:将石蜡放入容器中并在电炉(1000～1500W)上加热,待完全熔化后,将石蜡刷在木模上,稍等片刻(即石蜡固化以后),把木模表面刮平,同时也将铸造斜度刮出。对木模圆角及缺陷处,可刷上加有适量石墨粉的石蜡(石
After the completion of wood mold, the next process is to paint brush. Paint brush on the large, medium-sized wood mold is more applicable, while complex small pieces seem cumbersome, not economical. I plant mainly to produce small castings, brush mold paraffin wax has been used in wood mold over the years, the effect is very good. Specifically, the paraffin is placed in a container and heated in an electric furnace (1000-1500 W). After it is completely melted, the paraffin wax is brushed on the wood mold and the wood mold surface is flattened for a while (ie, after the wax is cured) , But also the casting slope scraping out. Wood mold fillet and defects at the brush can be added with the right amount of graphite paraffin (stone