Seamless elbow does not produce corrosion, pitting, corrosion or wear. One of the highest strength of the material with a metal material or stainless steel construction. Because stainless steel has good corrosion resistance, so it can maintain a permanent structural component engineering design integrity. Raw material rolling seamless elbow pipe is round tube, tube embryos to go through a cutting machine cutting a length of about one meter blank, and by conveyor belt to the furnace heated billet is fed into the furnace is heated, a temperature of about 1200 degrees Celsius. furnace temperature control is the key issue. after a round tube came out to go through the pressure punching machine wear air fuel into hydrogen or acetylene.
Generally more common punch is tapered roller punching machine, punching machine such high production efficiency, product quality, perforated expanding capacity, can wear a variety of pipe fittings. After perforation, round tube has been three-roll skew rolling , rolling or extrusion. to post extrusion detached sizing. sizing high-speed rotary cone drill bit through the perforated steel embryo formed tube.
Seamless elbow has the following advantages: health non-toxic, light weight, good heat resistance, corrosion resistance, heat resistance, good impact resistance, long life characteristics
1. Non-toxic health: material entirely from carbon, hydrogen and the two non-isotopic composition, did not add any toxic heavy metal salt stabilizer, health properties of the material has been detected by the national authorities.
2. Light weight: stamping elbow density 0.89-0.91g / cm, only one-tenth of steel pipe. Because of its light weight, can greatly reduce transportation costs and installation of industrial construction strength.
3. Good heat resistance: When the working temperature is 70 degrees, the softening temperature of 140 degrees.
4. Good corrosion resistance: except for a few hydrogenation agent, can withstand a variety of chemical media corrosion, with excellent acid, alkali, corrosion resistance, will not rust, will not corrode, will not breed bacteria, no electrochemical corrosion .
5. Good insulation: Due to the low thermal conductivity material, thermal conductivity of 20 degrees Celsius 0.21-0.24W / mk, than steel (43-52W / mk), purple pipe (333W / mk) is much smaller, so the PP-R pipe insulation good.
6. High impact: Due to the unique impact strength performance has been significantly improved over other solid wall pipe, which ring stiffness equivalent to 1.3 times the solid wall.
7. Long life: the pipe at rated temperature and pressure, the service life of more than 50 years, with anti-ultraviolet radiation, so that the products will never fade.
