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挖掘机斗齿攻关最近取得了新进展。清华大学与杭州重机厂等单位共同研究试制一种合金铸钢镶铸硬质合金的复合斗齿,在国产第一台斗轮挖掘机和WK-2型单斗挖掘机上作了装机试验,实际使用寿命由原来的60小时提高到186小时。这种斗齿制造工艺简便,耐磨性高,经济效果显著(据估算,每台斗轮挖掘机每年可节约6万元左右)。清华大学机械系为配合斗齿寿命攻关还研制成功一种DM-1型动载磨
Excavator teeth progress has made new progress recently. Tsinghua University and Hangzhou Heavy Machinery Factory jointly researched and trialed a composite bucket tooth cast with a cast steel alloy, and made installation tests on the first domestic bucket wheel excavator and the WK-2 single bucket excavator. The actual service life increased from the original 60 hours to 186 hours. This tooth has a simple manufacturing process, high wear resistance, and significant economic effects (according to estimates, each bucket wheel excavator can save about 60,000 yuan per year). The Department of Mechanical Engineering of Tsinghua University has also successfully developed a DM-1 type moving load mill to meet the needs of teeth tooth life.