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国内自行车车把的焊接,长期以来是采用高频钎焊。这种方法耗电量大(输出功率高达100千瓦以上),污染环境,高频电磁波对工人身体健康也有一定危害。另外,产品返修率也较高,一般在20～25％。随着自行车产量的不断增加,迫切要求改造旧的生产工艺。为此,在天津市特等劳模、副总工程师李祺祖同志领导下,组成了改造车把生产工艺试制组。经过五个多月的努力,终于把钨极氩弧焊首次应用到自行车车把焊接上。经天津市科委、经委组织有关单位专家进行的工艺测定认为:钨
Domestic bicycle handlebar welding, has long been the use of high-frequency brazing. This method consumes large amounts of power (output power up to 100 kilowatts or more), polluting the environment, high-frequency electromagnetic waves on the health of workers also have some hazards. In addition, the product repair rate is higher, generally 20 to 25%. With the increasing production of bicycles, the urgent need to transform the old production process. To this end, under the leadership of Comrade Li Keizu, model worker and chief chief engineer of Tianjin Municipality, a trial production team for the production of the modified handlebar was formed. After more than five months of hard work, TIG welding finally applied to the bicycle handlebar welding. The Tianjin Science and Technology Commission, the Economic Commission organized the relevant experts to determine the process of experts: Tungsten