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针对市场上所使用的各种大型破碎机锤头,存在硬度低、强韧性和耐磨性差,使用寿命短,以及国外进口锤头多数都含有价格昂贵的钼、镍等合金元素,生产成本高等不足,开发成功了强韧性高和耐磨性好的复合锤头,复合锤头的锤端为高碳高铬铸铁,碳化物体积分数为42%~48%,具有高硬度和优良的强韧性和耐磨性,硬度在65 HRC以上,抗弯强度大于500 MPa,冲击韧度在5.5 J/cm~2以上。复合锤头以铬、硼为主要合金元素,不加价格昂贵的钼、镍等合金元素,并取消高温热处理,其寿命比高锰钢锤头提高5倍以上。
For the use of the market for a variety of large crusher hammer, there is low hardness, poor toughness and wear resistance, short service life, and most of the imported hammerhead contains expensive molybdenum, nickel and other alloying elements, high production costs Insufficient, the successful development of a high toughness and good wear resistance of the composite hammerhead, the hammer end of the composite high-carbon high chromium cast iron, carbide volume fraction of 42% to 48%, with high hardness and excellent toughness And abrasion resistance, hardness above 65 HRC, flexural strength greater than 500 MPa, impact toughness 5.5 J / cm ~ 2 or more. Composite hammer head with chrome, boron as the main alloying elements, without expensive molybdenum, nickel and other alloying elements, and cancel the high temperature heat treatment, the life expectancy than high manganese steel hammer to improve more than 5 times.