我厂在1956年开始应用化学硬化砂造型,生产的铸件大部分是化工机械.根据我厂的生产性质,曾经先后将化学硬化砂应用于高硅铁铸件及灰铸铁铸件的生产,经过—个时期的试验和摸索,初步的得到一些体验,到目前为止,对一般中、小型铸件(带泥芯或不带泥芯),用化学硬化砂进行生产,已经没有什么问题了;同时己经开始推广到中型铸件的生产上,工作进行得很顺利,其中也曾经为车间解决了关键问题——西拉尔(силал) Our factory began to apply chemical hardening sand molding in 1956. Most of the castings produced are chemical machinery.According to the nature of our plant, it has been used in the production of high-ferrosilicon castings and gray cast iron castings, Period of trial and exploration, the initial get some experience, so far, the general medium and small castings (with or without mud cores), with chemically hardened sand production, no problem has been; at the same time has begun Promotion to the production of medium-sized castings, the work goes well, which has also solved the key issues for the workshop - West Lal (силал)