青铜铸造(以下简称铸铜),引起的金属烟尘热,早已人所共知。然而铸铜工人中发生的铅中毒,却常易被人们忽略。为引起对这一问题的重视,了解铅对铸铜工人的危害,以便采取有效的防治措施,我们于一九七四年十月至十一月对25名铸铜工人进行了铅中毒的调查。一、生产概况及工艺过程 1.青铜配方:我厂铸铜,主要使用青铜5—5—5与青铜4—4—17两种合金制造铸 Bronze casting (hereinafter referred to as cast copper), caused by the metal soot heat, has long been known. Lead poisoning among cast workers, however, is often overlooked. In order to draw attention to this issue and to understand the hazards of lead to bronze workers, effective preventive measures were taken. Twenty-five copper workers were investigated for lead poisoning from October to November 1974 . First, the production of profiles and process 1. Bronze formula: I plant copper, the main use of bronze 5-5-5 and bronze 4-4-17 two kinds of alloy casting