本发明系一直缝管焊缝退火机。这里,所采用的退火装置一般由固定在一个框架中的若干个感应器组成。为了使焊缝的金相组织均匀,管子必须以一定的距离和一定的速度在感应器下面通过。迄今,固定框架上设有高度可调的滚轮,滚轮放在管子上面,并在管子上滚动。因此能够精确地保持感应器与焊缝间所要求的距离。与固定框架连接的滚轮每次高度调节后,感应器或多或少地靠近管子。这种惯用之退火装置的配置与结构有如下缺点:由于退火装置是由在其下连续运行的管子所支承的,因此,滚轮因在管子上强烈受热而必须 The present invention is a seam seam weld seam annealing machine. Here, the annealing device used generally consists of a number of inductors fixed in a frame. In order to make the microstructure of the weld uniform, the pipe must be a certain distance and a certain speed below the sensor. Hitherto, the fixed frame was provided with adjustable height rollers placed on top of the tube and rolled over the tube. Therefore, the required distance between the inductor and the weld can be precisely maintained. Each time the height of the roller connected to the fixed frame is adjusted, the sensor approaches the tube more or less. The configuration and structure of the conventional annealing apparatus have the following disadvantages. Since the annealing apparatus is supported by the pipe running continuously thereunder, the roller must be strongly heated on the pipe