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1967年以来,我厂在冲天炉条件下,为行星式多转台抛丸机,生产耐磨合金铸铁抛丸机叶片,寿命达200小时以上,比白口铁、球墨铸铁的使用寿命(30～50小时)高4～6倍。该合金成分为:C2.4～2.8％,Si0.9～1.2％,Mn0.1～0.6％,P<0.06％,S<0.06％,Cr3.5～4.5％,Cu0.5～0.8％,Mo0.15～0.25％其铸造与热处理工艺如下: 一、耐磨合金铸铁抛丸机叶片的铸造工艺 1、配料与熔炼:配料中,生铁最好用Z15,但比例不宜过多,与回炉铁合计占40％,废钢占60％。用3吨/时酸性冲天炉。熔炼中期的铁水用于浇注叶片,前后期的铁水则用于浇注要求稍低的衬板、定向套等铸件。金属元
Since 1967, under the condition of cupola, our factory is a planetary multi-turntable shot blasting machine that produces wear-resistant alloy cast iron shot blasting machine blades with a service life of more than 200 hours and longer service life than white iron and nodular cast iron (30 ~ 50 hours) 4 to 6 times higher. The alloy composition is as follows: C2.4-2.8%, Si0.9-1.2%, Mn0.1-0.6%, P <0.06%, S <0.06%, Cr3.5-4.5%, Cu0.5-0.8% Mo0.15 ~ 0.25% of the casting and heat treatment process is as follows: First, wear-resistant alloy cast iron shot blasting machine casting process 1, ingredients and smelting: ingredients, pig iron is best to use Z15, but the ratio should not be too much, and iron Total 40%, scrap 60%. With 3 tons / hour acidic cupola. Molten mid-hot metal for pouring leaves, before and after the hot metal is used for pouring slightly lower liner, directional sleeve and other castings. Metal yuan