在使用电焊手把时,由于焊接时产生高热,以致一只手把用不多久,就会損坏。我們厂焊接車間老师付在大闹技术革命运动中,經过多次的改良,設計成如图1所示的电焊手把。这种手把的各部尺寸如图2所示,由紫銅管1,夹头2和φ6园钢的撳手三部分构成。其中紫銅管的作用是为了减少电阻,防止发热烫手。夹头可以用 In the use of electric welding handle, due to high heat welding, so that a hand will not take long, it will be damaged. Our factory welding workshop teacher paid a lot of technical revolution in the movement, after several improvements, designed as shown in Figure 1, the welding handle. The size of each handle of the handle is shown in FIG. 2, and is composed of three parts of a copper pipe 1, a chuck 2 and a handle of φ6 steel. One of the role of copper pipe is to reduce resistance, to prevent heat hot. Chuck can be used