Stainless Steel ASME B16.11 Forged Pipe Fittings Socket Weld Cross Forging And Socket Threaded Pipe Fittings

Positive four-way, other names: four fork, cross joint, cross sky. The positive four are used to connect four pipes with the same nominal diameter and intersecting perpendicularly. According to the material, the positive four-way can be divided into: stainless steel positive four-way, alloy steel positive four-way, carbon steel positive four-way, etc. It is mostly made of the same material as the pipe. There are elbows (elbows), flanges, three-way pipes, four-way pipes (cross heads) and reducers (small and small heads). The elbow is used in the place where the pipe is turned; the flange is used to connect the pipe and the pipe to each other, connected to the pipe end, the three-way pipe is used in the place where the three pipes converge; the positive cross is used in the place where the four pipes converge. Positive four-way has the characteristics of convenient connection and simple operation. Positive Stone is widely used in chemical, petroleum, metallurgy, gas, electric power, shipbuilding, air conditioning, automobiles, construction, heating pipelines, vacuum equipment and various industrial pipelines.

Butt-welded cross is a kind of pipe fittings used at pipeline branches. For the use of seamless pipes to manufacture butt-welded crosses, the currently commonly used processes include hydraulic bulging and hot pressing.

a. Hydraulic bulging The hydraulic bulging of the butt-welded cross is a forming process in which the branch pipe is expanded by the axial compensation of the metal material. The process is to use a special hydraulic press to inject liquid into the tube blank with the same diameter as the butt-welded spool, and to squeeze the tube blank through the two horizontal side cylinders of the hydraulic press. The volume of the tube blank becomes smaller after being squeezed. The liquid in the billet increases as the volume of the billet becomes smaller. When the pressure required for the butt-welded four-way branch pipe to expand is reached, the metal material flows along the cavity of the mold under the dual action of the side cylinder and the liquid pressure in the billet. Expand the branch pipe. ​

Classification

1. Divide carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon leaching, ppc, etc. by material. 2. According to the production method, it can be divided into topping, pressing, forging, casting, etc. 3. According to the manufacturing standard, it can be divided into national standard, electric standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc.