一、前言气压式钢筋焊接机是日本的一种先进的钢筋焊接设备。目前,90％以上钢筋混凝土结构焊接均采用它。在1982年从日本引进气压焊接技术后,研制出TJA—Ⅰ型气压焊接机,基本上保持原来样子,通过两年时间使用,发现了一些缺点,如:工夹具未采用耐热钢,在长期受热状态下,发生变形,使用寿命受到严重影响。为了将钢筋夹 I. INTRODUCTION Pneumatic steel rebar welding machine is a kind of advanced steel rebar welding equipment in Japan. At present, more than 90% of the reinforced concrete structures are welded. After introducing pneumatic welding technology from Japan in 1982, the TJA-I pneumatic welding machine was developed. It basically maintained its original appearance. After two years of use, it found some disadvantages, such as: the fixture did not use heat-resistant steel in the long-term. Under heat, deformation occurs and the service life is severely affected. In order to rebar clips