DIN2391 high-precision black phosphating tube process introduction: the finished tube of DIN high-precision precision bright seamless steel pipe is used as the phosphating steel tube, and the inner and outer walls of the steel pipe are phosphatized with imported environmentally friendly phosphating liquid to form a black phosphating protective film , Absorb the anti-rust oil through the micropores in the phosphating film for anti-rust treatment, and the two ends of the cover for anti-dust treatment.
Main features: The color of the steel pipe is black with bright, high uniformity of color on the surface of the steel pipe, strong consistency, beautiful appearance, and good anti-rust performance of the steel pipe.
Main application: steel pipe for hydraulic system; main product of our company 0010010 #39;s steel pipe export.
Specializing in the production of precision galvanized steel pipes.
The precision galvanized steel pipe is to make the molten metal react with the iron substrate to produce an alloy layer, thereby combining the substrate and the plating layer.
Zinc plating is to pickle the steel pipe first, in order to remove the iron oxide on the surface of the steel pipe, after pickling, wash through the ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank, and then send it to the heat Immersion plating tank.
The galvanized pipe produced by our company has the advantages of uniform coating, strong adhesion and long service life.
The main products are: cold-drawn or cold-rolled precision seamless steel pipes, bright seamless pipes and related bright oil pipes, seamless steel pipes for conveying fluids, with an annual output of more than 3,000 tons. The company has strong production and research capabilities, professional and technical personnel account for 20% of the total number of employees, advanced production technology, complete testing equipment, reliable product quality, long-term fixed-term supply of products to Shanghai Volkswagen, FAW Volkswagen, Dongfeng Chaochai and other large and medium-sized enterprises, foreign trade exports to Canada, Spain , Argentina, Brazil, India, Iran, Dubai and other countries and regions. The company implements the principles of 0010010 quot;quality first, integrity first, continuous improvement, customer satisfaction 0010010 quot;, and strives to dedicate to customers more satisfied products and services.
Company business scope:
DIN series cold-drawn or cold-rolled precision seamless steel tubes and their related coating (common passivation, white zinc, color zinc, military green passivation) steel tubes, NBK diesel high-pressure steel tubes, anti-rust phosphorizing tubes.
