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黄先禄(重庆铁合金厂)报道:根据GB4200—84《高温作业分级》标准,作者于1988～1989年对铁合金(矽铁、矽钙、锰铁、铬铁)冶炼工、产品精整工、配电工、冶炼行车工高温作业进行了分级调查。铁合金高温作业劳动时间率31.4%,作业点气温40.6℃,气湿56.3%,辐射热26.3J/cm~2·min,室外气温34.9℃,温差5.7℃,高温作业Ⅲ级。因产品工艺条件不同,机械化程度不一样,工种之间有一定差异。调查结果表明,铁合金高温作业Ⅳ级占15%,Ⅲ级占10%,Ⅱ级占
Huang Xianlu (Chongqing ferroalloy plant) reported: According to GB4200-84 “high temperature operation classification” standard, the author from 1988 to 1989 ferroalloy (silicon, calcium silicate, ferromanganese, ferrochromium) smelter, product finishing, distribution Workers, smelting mechanics high-temperature operation conducted a grading survey. Ferroalloy high temperature working time rate of 31.4%, the operating point temperature 40.6 ℃, humidity 56.3%, radiant heat 26.3J / cm ~ 2 · min, outdoor temperature 34.9 ℃, temperature 5.7 ℃, high temperature operation Ⅲ. Due to different product conditions, mechanization is not the same, there are some differences between types of work. The survey results show that the high-temperature operation of ferroalloy grade Ⅳ accounted for 15%, Ⅲ grade accounted for 10%, Ⅱ grade accounted for