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耐磨复合衬板,是指耐磨(mo)钢板(ban)通过切割、卷板(ban)变形、打孔和(he)(he)焊接等(deng)生产工(gong)(gong)艺加(jia)工(gong)(gong)而(er)成各(ge)种耐磨(mo)衬板(ban),如(ru)输送(song)机衬板(ban)、给煤机底板(ban)/旋风分离器倒锥和(he)(he)衬板(ban)、耐磨(mo)叶片等(deng)。
耐磨复(fu)合衬板是在普通钢板或耐热(re)钢板、不锈钢板上堆焊形成以体积分(fen)数达到50%以上Cr7C3碳(tan)化物为(wei)主的合金耐磨层。
耐磨复合衬板具有(you)高耐磨性、耐冲(chong)击、可(ke)变(bian)(bian)形(xing)和可(ke)焊(han)接等性能(neng),可(ke)像钢板一样直接进行卷曲变(bian)(bian)形(xing)、切割和打孔等加工(gong)(gong)环节,加工(gong)(gong)成工(gong)(gong)程部件以满足磨损工(gong)(gong)矿投(tou)入使用。
物(wu)料(liao)的(de)易(yi)磨(mo)(mo)(mo)(mo)(mo)性中等(矿(kuang)渣邦德功指(zhi)数20、生(sheng)料(liao)邦德功指(zhi)数10、煤哈氏指(zhi)数75或(huo)者吨耗(hao)为3g/t)的(de)情(qing)况下,堆(dui)(dui)焊(han)后(hou)的(de)矿(kuang)渣立(li)磨(mo)(mo)(mo)(mo)(mo)耐(nai)磨(mo)(mo)(mo)(mo)(mo)件(jian)(jian)正常(chang)运行(xing)时(shi)(shi)(shi)(shi)间(jian)(jian)达(da)(da)到(dao)(dao)1800小(xiao)时(shi)(shi)(shi)(shi)~2000小(xiao)时(shi)(shi)(shi)(shi)、煤立(li)磨(mo)(mo)(mo)(mo)(mo)耐(nai)磨(mo)(mo)(mo)(mo)(mo)件(jian)(jian)运行(xing)时(shi)(shi)(shi)(shi)间(jian)(jian)达(da)(da)到(dao)(dao)7000小(xiao)时(shi)(shi)(shi)(shi)以(yi)(yi)上、生(sheng)料(liao)立(li)磨(mo)(mo)(mo)(mo)(mo)耐(nai)磨(mo)(mo)(mo)(mo)(mo)件(jian)(jian)运行(xing)时(shi)(shi)(shi)(shi)间(jian)(jian)达(da)(da)到(dao)(dao)7000小(xiao)时(shi)(shi)(shi)(shi)以(yi)(yi)上、水泥熟(shu)料(liao)立(li)磨(mo)(mo)(mo)(mo)(mo)耐(nai)磨(mo)(mo)(mo)(mo)(mo)件(jian)(jian)运行(xing)时(shi)(shi)(shi)(shi)间(jian)(jian)达(da)(da)到(dao)(dao)2500小(xiao)时(shi)(shi)(shi)(shi)以(yi)(yi)上、挤(ji)压辊运行(xing)时(shi)(shi)(shi)(shi)间(jian)(jian)达(da)(da)到(dao)(dao)4000小(xiao)时(shi)(shi)(shi)(shi)(在(zai)线堆(dui)(dui)焊(han)后(hou))~8000小(xiao)时(shi)(shi)(shi)(shi)(离线堆(dui)(dui)焊(han)后(hou))以(yi)(yi)上,即(ji)可认为堆(dui)(dui)焊(han)后(hou)的(de)耐(nai)磨(mo)(mo)(mo)(mo)(mo)件(jian)(jian)达(da)(da)到(dao)(dao)预期(qi)的(de)磨(mo)(mo)(mo)(mo)(mo)损性能要求。
耐磨复合(he)衬板生(sheng)产(chan)厂家对于铸造基体材质为高铬铸铁或镍(nie)硬Ⅳ的立磨(mo)耐磨(mo)件(jian),在堆焊再制造完成(cheng)后投入运行后3个月(yue)内堆焊层应无脱(tuo)落现象(xiang)出现。