Changsha Xiangjia Metal Materical Co., Ltd.

  With the improvement of   LSAW steel pipe   weld quality and non-destructive flaw detection reliability, welded pipes are used more and more widely, replacing seamless steel pipes in more departments and applications. The growth rate of welded pipes is faster than seamless pipes, and the general trend of development This is. 　　   The high-frequency welding process has advantages in many aspects, and has a wide adaptability to the material of the tube blank and the specifications and dimensions of the steel tube. High-frequency welding not only improves the welding speed, but also obtains a weld with a small heat-affected zone and good penetration. 　　   In terms of quality, LSAW steel pipe has good weld quality, small internal and external burrs, high welding speed, and low power consumption. It can be widely used and promoted.   Changsha Xiangjia Metal Materical Co., Ltd.   the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We speci

  LSAW steel pipe  needs to go through a series of processes from raw materials to finished products. The production process flow mainly depends on the product variety. The completion of these processes requires various mechanical equipment and welding, electrical control, and testing devices. These equipment and devices are in accordance with different The technological process requires a variety of reasonable arrangements.   LSAW steel pipe mainly uses the skin effect and proximity effect of high-frequency current to make the current highly concentrated on the edge to be welded, so that it can be heated to the welding temperature in one hundredth of a second, and then the squeeze roller Under the action of pressure welding.   Changsha Xiangjia Metal Materical Co., Ltd.   the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experie

  2 steps to deal with grease, oil, lubricating oil and other pollution on the surface of   seamless pipes : 1.       Wipe clean with a soft cloth. 2.       Clean with neutral detergent or ammonia solution or special detergent.   The stainless steel surface has rainbow patterns, which can be washed off with warm water or neutral detergent when washing. Changsha Xiangjia Metal Materical Co., Ltd.   the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.

Due to the house decoration and improper protection, the residual rust in the water pipes left dotted rust spots on the   seamless pipes , we can: 1.       Scrub with toothpaste. 2.       Rinse with cold water and dry with cotton cloth.    Dust and dirt on the surface can be washed with soap, weak detergent or warm water. Changsha Xiangjia Metal Materical Co., Ltd.   the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.

Use a low-concentration vinegar solution or decontamination powder to remove the spots in   seamless pipes , and finally rinse it off with clean water.   OR   If it is caused by the lumpy rust spots caused by staining with strong acid and alkali materials and not washing in time, or washing not clean: 1.        Rinse immediately with water. 2.       Use ammonia solution or neutral carbonated soda aqueous solution vinegar, stainless steel treatment agent to wash steel water, etc. 3.       Wash with neutral detergent or warm water. Changsha Xiangjia Metal Materical Co., Ltd.   the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.

  3 steps to solve the water tank discoloration or rust spots on   seamless pipes   caused by heavy metal water: 1.       Use stainless steel brightener (to remove surface stains and rust) to dilute 4 times. 2.       Repeatedly scrub with a towel until the rust on the surface. 3.       Rinse with hot water again, and after drying, spray anti-rust water to keep the surface smooth and clean. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.

The internal and external surface quality of   ERW steel pipe   must be inspected with naked eyes or with special equipment.  1 Of course, the simplest inspection method is manual visual inspection, but it requires a lot of manpower and labor is heavy, it is easy to make mistakes, and it is not easy to realize mechanization and automation.  2 The use of non-damage inspection methods is labor-saving and reliable, and can be mechanized and automated; therefore, it has been extensively developed. In recent years, automatic measuring instruments such as thickness gauges and optical pulse diameter gauges have been widely used in the inspection of the geometric dimensions of thick-walled seamless steel pipes. These instruments for measuring the size of thick-walled seamless steel pipes can not only be used for the inspection of finished pipes, but also can be placed on the process line for monitoring and measurement, which facilitates effective and timely control of thick-walled seamless ste

Processing methods of   LSAW steel pipe : 1 Forging : a pressure processing method that uses the reciprocating impact of a forging hammer or the pressure of a press to change the blank into the shape and size we need. 2 Extrusion: It is a processing method in which the steel puts the metal in a closed extruder and applies pressure at one end to extrude the metal from a prescribed die hole to obtain a finished product with the same shape and size. It is mostly used for the production of non-ferrous metal materials. 　　 3 Rolling: A pressure processing method in which a steel metal billet is passed through a gap between a pair of rotating rolls (various shapes), and the cross-section of the material is reduced due to the compression of the rolls and the length is increased.  　　 4 Drawing steel: It is a processing method in which rolled metal blanks (forms, tubes, products, etc.) are drawn through a die hole to reduce the cross-section and increase the length, which is mostly used for cold

  What should we do if we get oil stains in the process of using  stainless steel welded pipes ? How to remove oil stains without causing damage to stainless steel welded pipes?  　　 (1) Chemical degreasing adopts tank immersion method. The degreasing tank is made of steel plate, and the inner wall is covered with PVC or polyethylene.  　 　  (2) Use 12-15% nitric acid (by volume) for chemical degreasing treatment, the temperature is 40 ℃ -60 ℃ , and the time is 2-4 hours. psb.jpg  　 　 (3) When the stainless steel welded pipe is immersed in the tank, attention should be paid to the position to avoid air in the pipe.  　　 (4) During the soaking process, the stainless steel welded pipe should be moved up and down or flipped to make the inner cavity solution constantly replaced to improve the effect. If necessary, take out the stainless steel welded pipe, flush it with water and air, and then soak it.  　　 (5) Chemical degreasing until the surface of the pipe is completely wetted by water.   C