1. Raw materials Raw material coils are purchased from large steel plants such as Baosteel, Southwest, Taigang, Jiuquan, Wuhan Iron and Steel, Dingxin, Baoxin and Zhangpu.
2. Pickling and passivation can remove the dirt, rust, weld spot, oxide layer, free iron and other dirt on the surface of the workpiece while the stainless steel is pickled and passivated, and the surface becomes uniform silver white after processing; at the same time, an efficient corrosion inhibitor is added, Anti-fogging agent prevents metal from over-corrosion and hydrogen embrittlement and inhibits the production of acid mist.
3. Calendered stainless steel calendering process is mainly to press the large plate roll into the corresponding thickness and width to meet the needs of different customer groups, making the production more flexible and reducing waste.
4. Annealing The workpiece is heated to a predetermined temperature, and after a certain period of time, it is slowly cooled by a metal heat treatment process. The purpose of annealing is to: 1 Improve or eliminate various structural defects and residual stresses caused by steel during casting, forging, rolling, and welding, and prevent deformation and cracking of the workpiece. 2 Soften the workpiece for machining. 3 Grain refinement, improve the organization to improve the mechanical properties of the workpiece. 4 Prepare the organization for the final heat treatment and pipe making
5. Slitting of stainless steel strips is to cut the stainless steel coils into corresponding widths for further deep processing and pipe making. The process of slitting should pay attention to the scraping of the strips by the slitters, the width of the strips and Errors, in addition to the stripping related to the pipe manufacturing process, the striping capes and burrs are critical to the pipe making process.
6. The coils will be rolled up into stainless steel strips and rolled up with a tin seal for the next shipment.
7. The most important process of welding stainless steel welded pipe, stainless steel mainly uses argon arc welding and plasma welding, argon arc welding gas is pure argon, mainly welded stainless steel pipe below 3mm, plasma welding has a strong penetration, the main welding 5 -8mm stainless steel tube.
8. The bead polished stainless steel pipe welding process, the need for the external surface of the bead on the appropriate polishing and water cooling treatment, the first time after the water cooling of the weld bead, the direct water mill grinding bead to level, generally depending on the thickness of stainless steel pipe Add 3-5 sets of water mills for grinding and dressing of weld beads
9. The process of shaping stainless steel welded pipes is called extrusion production. All the square tubes and rectangular tubes are initially made from round tubes. They are produced by round tubes of the same circumference and then extruded into square tubes and rectangular tubes. Molding and straightening with a mold
10. Cutting stainless steel pipe cutting process is relatively rough, most of them are cut with a grinding wheel, will produce a cloak after cutting, need to be further trimmed; in addition to a band saw cutting, the accuracy is relatively good, there is also a cloak
11. Heat treatment For special purpose tubes, a bright heat treatment is required to achieve a higher level of ductility
12. Correction For the slightly poorer circularity and symmetry of individual tubes after production, they must be re-extruded with a die to make them symmetrical.
13. The problem that often occurs when straightening stainless steel welded pipes is that the pipe is bent. This phenomenon occurs for many reasons. The basic processing method is to directly re-machine the machine.
14. Due to lack of cutting process, the end of the trimming process leads to a lot of burrs on the stainless steel nozzle. The flat mouth machine is required to correct the port and the cornea.
15. Pickling For industrial and mechanical pipes, an additional pickling process is required to passivate the surface and form a new protective film.
16. There are several processes for polishing the usual product pipes and decorative pipes. There are several processes for the surface treatment. Polishing is divided into 400 #, 600 #, and 800 #. The sand is divided into round sand and straight sand. There are 180 #, 240 #, 400 #, 600#, 800#, applicable to different levels of customer needs
17. Inspection and inspection mainly checks whether the outer diameter and thickness of the pipe meet the standard, whether the surface treatment meets the standard, and whether the welding process meets the standard.
18. Packaging of stainless steel tube packaging, the most common is currently using plastic bags, for the surface requirements, you can choose to use sponge packaging, bubble bag packaging, woven bag packaging and other packaging processes
19. sell
Can be customized all kinds of round tube, square tube, rectangular tube, shaped tube, such as pressure tube: escalator tube, arch tube, hexagonal tube,
Scallops, plum blossoms, masonry tubes, handle tubes, semicircular tubes, triangular tubes, conical tubes, grooved tubes, round balls, etc. Luster: 180#600#; Mirror (inside and outside polishing); sanding, drawing, matt, titanium gold Executive Standard: GB/3639─2000; GB/8723─99
We will continue to operate with integrity, blaze new trails, and provide our customers with the highest quality products and best services. Since our company was founded, we have always adhered to the business philosophy of “integrity, cooperation and common developmentâ€. Under the guidance of this concept, In just a few years, our company has leapt from a small company to a leader in the steel pipe industry. The company always adheres to the principle of "quality first, quality service" and is well received by customers.
The company has strong technical force, excellent equipment, stable product quality, complete varieties, and reasonable prices. Since the company has been diligent in its pioneering work for many years and adhered to the principle of honesty and superiority, the company has been able to achieve rapid development. It has successively established stable supply relationships with major power plants, boiler plants, petroleum, chemicals, machinery and other enterprises across the country. The company has won users and followed the market by following the business integrity. We sincerely welcome new and old customers to call us for business negotiations. .
2. Pickling and passivation can remove the dirt, rust, weld spot, oxide layer, free iron and other dirt on the surface of the workpiece while the stainless steel is pickled and passivated, and the surface becomes uniform silver white after processing; at the same time, an efficient corrosion inhibitor is added, Anti-fogging agent prevents metal from over-corrosion and hydrogen embrittlement and inhibits the production of acid mist.
3. Calendered stainless steel calendering process is mainly to press the large plate roll into the corresponding thickness and width to meet the needs of different customer groups, making the production more flexible and reducing waste.
4. Annealing The workpiece is heated to a predetermined temperature, and after a certain period of time, it is slowly cooled by a metal heat treatment process. The purpose of annealing is to: 1 Improve or eliminate various structural defects and residual stresses caused by steel during casting, forging, rolling, and welding, and prevent deformation and cracking of the workpiece. 2 Soften the workpiece for machining. 3 Grain refinement, improve the organization to improve the mechanical properties of the workpiece. 4 Prepare the organization for the final heat treatment and pipe making
5. Slitting of stainless steel strips is to cut the stainless steel coils into corresponding widths for further deep processing and pipe making. The process of slitting should pay attention to the scraping of the strips by the slitters, the width of the strips and Errors, in addition to the stripping related to the pipe manufacturing process, the striping capes and burrs are critical to the pipe making process.
6. The coils will be rolled up into stainless steel strips and rolled up with a tin seal for the next shipment.
7. The most important process of welding stainless steel welded pipe, stainless steel mainly uses argon arc welding and plasma welding, argon arc welding gas is pure argon, mainly welded stainless steel pipe below 3mm, plasma welding has a strong penetration, the main welding 5 -8mm stainless steel tube.
8. The bead polished stainless steel pipe welding process, the need for the external surface of the bead on the appropriate polishing and water cooling treatment, the first time after the water cooling of the weld bead, the direct water mill grinding bead to level, generally depending on the thickness of stainless steel pipe Add 3-5 sets of water mills for grinding and dressing of weld beads
9. The process of shaping stainless steel welded pipes is called extrusion production. All the square tubes and rectangular tubes are initially made from round tubes. They are produced by round tubes of the same circumference and then extruded into square tubes and rectangular tubes. Molding and straightening with a mold
10. Cutting stainless steel pipe cutting process is relatively rough, most of them are cut with a grinding wheel, will produce a cloak after cutting, need to be further trimmed; in addition to a band saw cutting, the accuracy is relatively good, there is also a cloak
11. Heat treatment For special purpose tubes, a bright heat treatment is required to achieve a higher level of ductility
12. Correction For the slightly poorer circularity and symmetry of individual tubes after production, they must be re-extruded with a die to make them symmetrical.
13. The problem that often occurs when straightening stainless steel welded pipes is that the pipe is bent. This phenomenon occurs for many reasons. The basic processing method is to directly re-machine the machine.
14. Due to lack of cutting process, the end of the trimming process leads to a lot of burrs on the stainless steel nozzle. The flat mouth machine is required to correct the port and the cornea.
15. Pickling For industrial and mechanical pipes, an additional pickling process is required to passivate the surface and form a new protective film.
16. There are several processes for polishing the usual product pipes and decorative pipes. There are several processes for the surface treatment. Polishing is divided into 400 #, 600 #, and 800 #. The sand is divided into round sand and straight sand. There are 180 #, 240 #, 400 #, 600#, 800#, applicable to different levels of customer needs
17. Inspection and inspection mainly checks whether the outer diameter and thickness of the pipe meet the standard, whether the surface treatment meets the standard, and whether the welding process meets the standard.
18. Packaging of stainless steel tube packaging, the most common is currently using plastic bags, for the surface requirements, you can choose to use sponge packaging, bubble bag packaging, woven bag packaging and other packaging processes
19. sell
Can be customized all kinds of round tube, square tube, rectangular tube, shaped tube, such as pressure tube: escalator tube, arch tube, hexagonal tube,
Scallops, plum blossoms, masonry tubes, handle tubes, semicircular tubes, triangular tubes, conical tubes, grooved tubes, round balls, etc. Luster: 180#600#; Mirror (inside and outside polishing); sanding, drawing, matt, titanium gold Executive Standard: GB/3639─2000; GB/8723─99
We will continue to operate with integrity, blaze new trails, and provide our customers with the highest quality products and best services. Since our company was founded, we have always adhered to the business philosophy of “integrity, cooperation and common developmentâ€. Under the guidance of this concept, In just a few years, our company has leapt from a small company to a leader in the steel pipe industry. The company always adheres to the principle of "quality first, quality service" and is well received by customers.
The company has strong technical force, excellent equipment, stable product quality, complete varieties, and reasonable prices. Since the company has been diligent in its pioneering work for many years and adhered to the principle of honesty and superiority, the company has been able to achieve rapid development. It has successively established stable supply relationships with major power plants, boiler plants, petroleum, chemicals, machinery and other enterprises across the country. The company has won users and followed the market by following the business integrity. We sincerely welcome new and old customers to call us for business negotiations. .
Calcium hydrophosphate is used as feed material, mainly offer mineral nutrients such as phosphorus, calcium, etc for farm livestock fodder. It's easy to be digested and absorbed by farm livestock, accelerating their growth and development, shortening the fattening period, gaining weight rapidly.Criteria Implemented: GB/T22549---2008,Product Properties: Calcium hydrophosphate is also called Dicalcium Phosphate, molecular formula is CaHPO4.2H2O, Molecular weight body is 172.09. It`s white or light yellow crystalline powder, loose and dry, and can dissolve in sparse chlorhydric acid, sparse hydrogen nitrate , acetic acid, with low hygroscopicity.Product Packaging: Double packaged with polyethylene plastic with inner liner nonwoven fabric bag, NW: 25kg or 50kg.
Dicalcium Phosphate (DCP)
Dicalcium Phosphate,Calcium Phosphate Disable,Dicalcium Phosphate White Powder,Dcp 18
MIDI FEED BIOTECH LIMITED , https://www.chinabromine.com