IF Elbow
The intermediate frequency pipe bender adopts intermediate frequency electric induction heating to bend the workpiece under the condition of local heating. Compared with the general cold pipe bender, not only does it not need a complete set of special molds, but the volume of the machine tool is only 1/3 to 1/2 of the cold pipe bender of the same specification. The intermediate frequency hot pipe bending process is the most economical and effective one of the existing various pipe bending processes.
The process of intermediate frequency pipe bending is to put an induction coil on the part of the steel pipe to be bent, clamp the pipe head with a mechanical rotating arm, and pass an intermediate frequency current into the induction coil to heat the steel pipe. When the temperature of the steel pipe rises to a plastic state, the steel pipe Use mechanical thrust to advance and bend. The bent steel pipe is quickly cooled with coolant, so that while heating, advancing, bending, and cooling, the bend is continuously bent out.
Intermediate frequency elbows are widely used in pipeline prefabrication in electric power, petroleum, chemical, marine, nuclear industry and other engineering fields. However, the IF elbows have significantly larger wave folds at the arc starting point, especially if the bending radius is less than 3Do (Do is the outer diameter of the pipe) ), the inner arc wave folds are larger, which seriously affects the appearance quality of the product. This is a problem that domestic pipe benders cannot solve and urgently need to be solved for decades.
Intermediate frequency elbows are widely used in pipeline prefabrication in electric power, petroleum, chemical, marine, nuclear industry and other engineering fields. However, the IF elbows have significantly larger wave folds at the arc starting point, especially if the bending radius is less than 3Do (Do is the outer diameter of the pipe) ), the inner arc wave folds are larger, which seriously affects the appearance quality of the product. This is a problem that domestic pipe benders cannot solve and urgently need to be solved for decades.
1. Divided by material:
Carbon steel: ASTM/ASME A234 WPB, WPC
Alloy: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911, 15Mo3 15CrMoV, 35CrMoV
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low temperature steel: ASTM/ASME A402 WPL3-WPL 6
High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70 Cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon leaching, PVC, PPR, RFPP (reinforced polypropylene), etc.
2. According to the production method, it can be divided into pushing, pressing, forging, casting, etc.
3. According to the manufacturing standard, it can be divided into national standard, electric standard, ship standard, chemical standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc.
