齿轮在固体渗碳时,由于渗碳剂里有泥砂、氧化铁皮等杂质;配制渗碳剂时混合不均匀或有块状催渗剂;操作不当,在工件周围撒催渗剂;渗碳剂中含有水分等原因,都会造成齿轮表面“结瘤”。我们采用以下的方法解决了这个问题。把木炭放在水池中清洗,去除掉泥砂和氧化皮,然后要彻底烘干; Gear solid carburizing, due to the carburizing agent in the silt, iron oxide and other impurities; preparation of carburizing mixed uneven or block-like carburizing agent; improper operation, the agent spreads around the penetration agent; carburizing agent Containing water and other reasons, will cause the gear surface “nodulation ”. We use the following method to solve this problem. The charcoal on the pool cleaning, remove the sand and scale, and then to thoroughly drying;