文档介绍：用净化后的天然气代替丙烷气渗碳的质量及经济效益
马学文1,李晓澎2、3,李志义2、3
( ,湖南株洲412000;,重庆 400042;,重庆 401329 )
摘要:株洲齿轮有限公司已成功地以净化后的天然气代替丙烷气用于渗碳。这项工程所取得的成果表明,更换渗碳原料气的设备改造和调试工作量小,更换原料气后产能和产品质量提高,生产成本显著下降。经过净化的城市天然气在热处理行业具有广阔的应用前景。
关键词:城市天然气;净化;渗碳
Quality and Economic Gain of Carburizng with Purified Natural Gas instead of propylene
MA Xue-wenl1 , Ll Xiao-peng2、3 , Ll zhi-yi2、3
( 1. Zhuzhou Gear Co., Ltd., Zhuzhou 412000,Hunan ;2 . Chongqing Yiyang Electromechanical Equipment co., ltd Chongqing 400042; 3 . Chongqing mercial Furnace Co., Chongqing 401329)
Abstract : Propane gas has been essfully replaced by purified natural gas for carburizing in Zhuzhou Gear Co . , Ltd . The results obtained from this indicate that equipment reformation and process debuging in the replacement of feed gas for carburizing are easy to perform , and that production capability and product quality after the replacement are enhanced and production cost 15 obviously decreased . The application of purified town natural gas to heat treatment will have a vast vistas.
Key Words: town natural gas;purifying;carburizing
上世纪八十年代末,株齿公司引进了一套美国哈克洛夫箱式炉生产线,采用当时比较先进的以丙烷为原料气制备吸热式气氛+丙烷气富化的渗碳技术。采用这种渗碳技术生产的齿轮,质量稳定,在当时生产成本也不高。因此,株齿公司随后引进和自制的所有渗碳设备也都采用了以丙烷为原料气的气体渗碳工艺。相应地,株齿公司兴建了一个液化丙烷气站与之配套,建有两个30 吨的液化丙烷气储罐及相应的蒸发气化装置和输送管道。
近年来,全球原油价格快速上涨,液化丙烷气的价格也随之从3000多元/吨涨到8000多元/吨(到厂价,丙烷的生产绝大部分由天然气制造),公司热处理生产成本急剧