摘要
介绍了工作面为高碳合金钢、衬层部分为低碳钢的双金属铸造颚板。将试验材料分别在260℃、290℃、320℃进行等温淬火,然后测试淬火后试样的硬度、冲击韧度、耐磨性,观察了结合面的显微组织。结果显示：在290℃等温淬火试样的力学性能最好,动载磨损失重最小;试验材料的结合层没有冲混现象,呈良好的冶金结合状态。在实际装机试验中,双金属颚板比高锰钢颚板的使用寿命提高50%～150%。
The bimetal-cast jaw plates with high carbon alloyed steel as working layer and low carbon steel as lining layer was introduced.The specimens made of test material were isothermally quenched at 260 ℃, 290 ℃ and 320 ℃ respectively, then their hardness, impact toughness, wear resistance was test, and the microstructure of their joint layer was observed.The results showed that the specimen isothermally quenched at 290 ℃ has the best mechanical properties and the minimum weigh loss of dynamic load wear; the joint layer of the test material exhibited good metallurgical junction with no stream blending phenomenon.The practical working test showed that the working life of the bimetal jaw plate was increased by 50%～150% compared with the high manganese steel jaw plate.
出处
《现代铸铁》
CAS
2010年第4期76-80,共5页
Modern Cast Iron
基金
黑龙江省基金重点(ZD200909)
06攻关(GC06A211)
黑龙江省佳木斯大学校企研究生创新基地(E080601)等项目资助
关键词
颚板
复合铸造
耐磨性
力学性能
jaw plate
composite casting
wear resistance
mechanical properties
