Characteristics of pipe cap

　　There are many forms of pipe caps. The function is sealing. One is to make the upper and lower bottom of the tank shaped pressure vessel; the other is to use a head to seal the pipe in the form of welding when the pipe ends and is not ready to extend forward. The blind plate and pipe cap are similar to the head, but they can be disassembled. The pipe cap can not be disassembled after welding. The matching pipe fittings include pressure vessel, pipe, flange, elbow, tee, cross and other products.

　　According to the material, the pipe caps are divided into: carbon steel: ASTM a105,20?, Q235, 16Mn, ASTM A350, LF1, LF2 CL1 / Cl2, LF3 CL1 / Cl2, ASTM a694, F42, F46, F48, F50, f52, f56, F60, F65, F70 alloy steel: ASTM A182 F1, f5a, F9, F11, F12, F22, F91, a182f12, a182f11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12cr2mo1, A335P22, st45.8/iii, 35crmov, 45crmo stainless steel: ASTM A182 f304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8 Manufacturing standards: national standard, American Standard, Russian standard, Japanese standard, German standard, European standard, electric standard, chemical standard, etc. uses: water, beverage, beer, food, petrochemical, nuclear power, machinery, medical equipment, chemical fertilizer, shipbuilding, waterproof treatment, pipeline and other processing methods: the forming process of pipe cap is to use a special stamping machine, put the pipe blank into the outer mold, and then close the upper and lower mold, Driven by the push rod, the tube blank moves along the gap between the inner die and the outer die to complete the forming process. Production process: hot stamping, cold stamping, forging, casting, etc

　　The pipe cap includes convex pipe cap, conical shell, variable diameter section, flat cover and tight mouth. The convex pipe cap includes hemispherical pipe cap, elliptic pipe cap, dish pipe cap and ball crown pipe cap. From the stress point of view, the hemispherical cap of convex cap is gradually bad, but from the point of view of manufacturing difficulty, it is gradually good.