First of all, the machining process method is used to process the stainless steel elbow. When the tapping to the thread meets the size, the two taps may face each other. This is because the tap base is longer. In this case, the tap face needs to be worn short, but if the end face is worn short, it may adversely affect the use of the tap. The relationship between short front and rear taps and the workpiece being machined can be seen from tap face grinding. After tapping the end face, the tap thread can not be normally guided into the hole, but is pressed into the hole by the end face, thereby affecting the use of the tap.

In the coil mill, the history of thermomechanical changes in the entire length of the stainless steel stamped elbow pipe has changed significantly, especially in the production of micro stainless steel stamped elbows, which will strongly influence the degree of recrystallization and grain growth on the finishing mill. Precipitates and leads to drastic changes in the ultimate microstructure and function throughout the length of the stainless steel stamped elbow. When grinding, it is necessary to maintain the original geometry of the front guide. It is best to use a tapping and grinding machine for grinding. The best way to solve the problem of a longer tap surface is to tailor the tap with a shorter base to the specific requirements of the thread being machined.

In order to extend the service life of the tap and improve the quality of thread processing, the following points should be noted. The elbow fittings of stainless steel pipe fittings have a good processing technology. Different processing methods are adopted during processing. At present, the production process of elbow fittings for stainless steel pipe fittings at home are mainly: conventional semi-continuous hot continuous rolling, CSP continuous casting and continuous rolling, and medium plate Unit, furnace unit. Different processing techniques have a good upper hand, which can ensure that the produced stainless steel pipe elbows have good functions and uses.

In order to solve these problems, some users have only to grind the front guide of the tap, and grind the front and rear tap guides. Because the shape of the front guide after dressing is changed, it still affects the function of the tap. The solution to this problem is a furnace coil mill: the furnace coil mill includes a reciprocating roughing mill and a 4-roll reciprocating finishing mill. Two hot coil mills are installed on the conveyor lines on both sides of the finishing mill. The output roller path usually consists of a laminar cooling system and a reeling station.