The alignment of tungsten rod
At present, in the tungsten market, the straightening requirement of tungsten rod is more and more strict, and the demand is increasing.
The principle of using tungsten rod straightener
After drawing, the tungsten rod has more or less varying degrees of bending, so it cannot meet the specific use requirements. Therefore, mechanical methods must be used to straighten it and make it easy to use. The method of mechanical straightening is to choose five molds with the same structure size, which are respectively fixed on the straightening spindle mold frame, and each mold hole is placed in a reasonable position. When the main shaft of the straightener rotates at high speed, the tungsten rod becomes straight when it passes through five die holes continuously. When tungsten rod through the first to fifth in turn piece mold (the main shaft rotate at a speed of 2800 r/min), tungsten rod is limited by a die, so as to produce a trace of deformation, the trace that tungsten rod is an additional stress, the additional stress and tungsten rod stresses in the original phase offset, so as to eliminate internal stress of tungsten 杅 straightening the purpose of tungsten rod.
The heating of straightening tungsten rod should be determined according to the actual situation. The basic principles are as follows: The temperature of the large diameter tungsten rod is higher, and the temperature of the large diameter tungsten rod is lower, and the temperature range is 700~1100℃.
