苏州自行车钢珠厂,是定点生产φ3～φ6mm自行车钢球的专业工厂,自1970年生产以来,钢球渗碳工艺长期未得到解决。最早采用固体渗碳,渗层不均匀,劳动强度大,周期长,电耗大,成本高。也曾采用过液体渗碳,质量尚可,但因严重污染环境而停产,最后被迫采用固体渗碳,直到1986年7月购进上海电炉厂生产的RG—45—9Q型 Steel ball factory in Suzhou, is a fixed-point production of φ3 ~ φ6mm bicycle steel ball factory, since 1970 production, steel ball carburizing process has long been unresolved. The first solid-carburizing, uneven infiltration, labor-intensive, long cycle, power consumption, high cost. Have also used liquid carburizing, the quality is acceptable, but due to serious pollution of the environment and stop production, and finally forced the use of solid carburizing until July 1986 purchased Shanghai Electric Furnace plant production RG-45-9Q