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由衡阳市动力配件厂和湖南大学联合研制的“W Mn Nb Ta”合金铸铁气缸套,经过四年多的试验研究,取得了可喜的成果,于1983年11月1日至3日召开了鉴定会。 W Mn Nb Ta铁合金是钨渣经过碳热法还原而获得的一种铁合金,它含有较高的Mn(18～25％)、W(4.33～6.22％)、Nb+Ta(0.45～0.73％),作为冲天炉熔炼用的铁合金加入剂,经熔炼后,可得到含W 0.15～0.4％、Nb+Ta>0.04％的合
The “W Mn Nb Ta” alloy cast iron cylinder liner, jointly developed by Hengyang Power Fittings Factory and Hunan University, has achieved gratifying results after more than four years of experimental research and was appraised from November 1 to November 3, 1983 meeting. W Mn Nb Ta ferroalloy is a ferroalloy obtained by the reduction of tungsten slag by carbothermal method and contains higher Mn (18-25%), W (4.33-6.22%), Nb + Ta (0.45-0.73%), , As a cupola melting ferroalloy agent, after melting, can be obtained containing W 0.15 ~ 0.4%, Nb + Ta> 0.04% of the combined