变位胎具焊接操作时宜将焊接部位置于最适于施焊的位置,通常是采用平焊位置。当有利于焊接质量时也采用立焊位置。因而常常把最难焊的横焊变换为平焊或立焊。因此,能固定焊件并将其接头的空间位置变换成上述位置的胎具是颇受用户欢迎的,其利用率也最高。现将市售的变位胎具及其用法介绍如下: 1.转胎 Displacement welding operation of the tire should be placed at the welding position most suitable for welding position, usually using flat welding position. When the welding quality is also used when the vertical welding position. So often the most difficult welding horizontal welding transformed into flat welding or vertical welding. Therefore, the welding tool can be fixed and the joint position of the space into the position of the tire is quite popular, its utilization rate is also the highest. Now available on the market changes in the use of tools and introduced as follows: 1. Tire