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我厂自1969年底开始采用熔模铸造工艺以后,产量不断提高,品种不断扩大,这项新工艺在生产中日益显示出它独特的优越性,但也暴露了某些缺点。例如模壳在氯化铵水溶液中硬化时,产生大量有刺激性的氨气。长期接触这种气体,会影响工人身体健康。厂党总支、革委会对这一问题很重视,采取了不少措施,如加强通风、采用抽气柜等,但都没能从根本上解决。如何解决这一问题呢?我们分析了氨气产生的原因。涂料中的水玻璃与硬化剂
Since the beginning of the investment casting process in our factory from the end of 1969, the output has been continuously increased and the variety expanded. The new process has increasingly shown its unique superiority in production, but also exposed some shortcomings. For example, when the shell is hardened in an aqueous solution of ammonium chloride, a large amount of irritating ammonia gas is produced. Long-term exposure to this gas will affect the health of workers. Party branch general branch, the Revolutionary Committee attaches great importance to this issue, taken a number of measures, such as strengthening the ventilation, the use of gas extraction cabinets, but failed to fundamentally solve. How to solve this problem? We analyzed the reason of ammonia generation. Water glass in paint and hardener