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aluminium coated tubes

Categories：	Fabric / Polyester Fabric
Material & Specifications：	3444
Manufacturing methods：	Knit fabric
Weight(g/㎡)：	<80
Width(cm)：	110-120
Usage：	Apparel

Contact Infomation

cold drawn tubes

Tel:	86-342-23232323
Fax :
Country/Region :	Albania
Address :	A,Ouya avenue ,Xi'an
Contact :	Bernier Beaufort ()

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Description: Seamless steel tube production process will be solid or hollow ingot dressed as capillary tube rounds, then its rolled into the required size of the steel pipe. The perforation and tube rolling method is different, is aluminium coated tubes the production of seamless steel tube. Welded steel pipe production process is to bend pipe (steel sheet or strip) into tubes, the gap welding up again become a steel tube. For shaping and welding methods is different, is the production of welded steel pipe.
Seamless steel tube is mainly with the method of hot rolling production. Extrusion method is mainly used in the production of hard punch low plasticity and high alloy steel or deformed steel tube and composite tube. Cold rolled and cold drawn method hot-rolled tube can be continue to processed into small diameter and thin wall steel tube. Welded steel pipe simple process, high production efficiency, low cost, product varieties growing.
Curve shaped steel tube in the length direction, with figures show the curve is called bending degrees. The degree of curvature of standard stipulated in the general can be divided into the following two kinds:
A, partial bending: use A meter long ruler by quantity at the maximum bending tube, measuring the chord high (mm), is the local curvature values, its unit is mm/m, said method such as 2.5 mm/m. This method can also be applied to the pipe bending.
B, the total length of the total bending: use a thin line, from stainless steel tube 304 the pipe ends taut, measuring steel pipe bend biggest string high (mm), and then reduced the percentage of growth degree (in meters), is the length of the steel tube length direction curvature.
For example: steel pipe length is 8 m, measured the maximum string high 30 mm, length is the tube bending should be followed: 0.03 present 8 m x 100% = 0.375%.
Seamless steel pipe is a hollow section, no seams around the strip steel. Seamless steel pipe is hollow section, can be used as a transmission fluid pipe, such as oil, natural gas, coal gas, water and some solid materials, such as pipelines. Seamless steel pipe and round steel, compared to solid steel in the bending torsional strength phase at the same time, the weight is lighter, is a kind of economic cross section steel, widely used in the manufacture of structural and mechanical parts, such as petroleum drill pipe, auto transmission shaft, bicycle frame and construction of steel scaffolding is used. Use seamless steel tube manufacturing annular parts, can improve material utilization, simplifying the manufacturing process, material saving and processing time, such as rolling bearing ring, jack sets, steel pipe is widely used to manufacture.
Steel pipe or all kinds of conventional weapons indispensable materials, gun, gun barrel to steel pipe manufacturing. Steel pipe according to the cross-sectional area in the shape of different can be divided into circular tube and special pipe. Due to the equal conditions, the circumference circle area is the largest, with circular tube can deliver more fluid. In addition, the circle cross section under radial pressure, the internal or external stress is relatively uniform, therefore, the vast majority of steel tube is round tube.
But, pipe also has some limitations, such as in the plane Cold Drawn Seamless Tubes bending condition, the pipe is not square, rectangular tube bending strength is big, some agricultural machinery and skeleton, rectangular tube, steel wood furniture is commonly used. According to the different USES also needs to have other cross section shape of profiled steel pipe.

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