TIANJIN BEST TRADE CO., LTD

PPGI & GI Coil Product Description PPGI sheet  is the ultimate product for deep processing of sheet by steel companies in the world today. With light weight, beautiful appearance, good corrosion resistance, etc., it is widely used in construction, light industry, home appliances and other industries. During production, use a crane to roll up the raw materials on the receiving platform of the color coating unit, and then use a transport trolley to transport the steel coil  to the coil seat in front of the color coating unit, remove the steel strip here, and then load the trolley to remove the raw steel The coil is loaded on the uncoiler, and the strip head is automatically guided to the cutting head by the belt guide device. The strip is sewn with the previous loop on the sewing machine. The stitched steel strip first enters the pre-cleaning section for alkaline water washing, alkaline water scrubbing, and hot water washing, and then enters the looper after being dried by hot air. A

Welded pipe is manufactured from plates or continuous coils or strips. To manufacture a welded pipe, the first plate or coil is rolled into a circular cross section with the help of a plate coiler or in a continuous process by means of rollers. Once the circular section is rolled off the plate, the pipe can be welded with or without filler material. Large sizes of welded pipes can be manufactured without any upper limit. Welded pipes with filler material can be used to manufacture long radius elbows and bends. Compared to seamless pipes, welded pipes are cheaper and weaker due to the weld seam There are different welding methods for welding pipes. ►ERW- resistance welding ►EFW-Electrofusion welding ►HFW-High Frequency Welding ►SAW-Submerged arc welding (long seam and spiral seam)   ERW steel pipe manufacturing process In  the ERW / EFW / HFW pipe  process, the first plate is formed into a cylindrical shape and the longitudinal edges of the formed cylindrical shape are welded by flash w

Seamless pipe is the strongest of all pipe types because it has a uniform structure over the entire length of the pipe. ►  Seamless pipe  is manufactured in the same size and schedule. However, the manufacture of large diameter pipe is limited. Seamless pipe is widely used in the manufacture of pipe fittings such as elbows, bends, and tees. ►A detailed explanation of the various manufacturing processes.   Mandrel mill process In mandrel-rolled pipe manufacturing process, billets are heated to high temperatures in a rotary furnace. The cylindrical hollow, also known as the female hollow, is produced with the help of a rotary piercer and a set of roller devices that hold the piercer in the center of the billet. The outer diameter of the perforator is approximately the inner diameter of the finished tube. With the help of this, the alignment of the outer diameter and thickness of the secondary rolls is achieved.     Mannesmann Plug Mill Pipe Manufacturing Process Mannesmann was a German e