Knowledge about galvanized steel pipe

Hot-dip galvanized pipe fittings refer to the galvanized treatment of pipe fittings. Hot-dip galvanized pipe fittings include galvanized elbows, galvanized flanges, galvanized elbows, galvanized reducers, and galvanized pipe caps. The hot-dip galvanized galvanized layer is thick and has the advantages of uniform coating, strong adhesion and long service life. A complex physical and chemical reaction occurs between the base of the pipe fitting and the molten bath to form a corrosion-resistant zinc-iron alloy layer with a tight structure. The alloy layer is integrated with the pure zinc layer and the pipe fitting matrix. Therefore, it has strong corrosion resistance. The cost of electro-galvanizing is low, the surface is not very smooth, and its corrosion resistance is much different than that of hot-dip galvanized pipe fittings. The main purpose of galvanizing is to enhance the anti-corrosion ability of the pipe itself. Hot-dip galvanized pipe fittings are mainly used for pipeline projects such as gas and heating. If the steel pipe body needs to be galvanized and anti-corrosion treatment, the corresponding connecting pipe fittings should also be galvanized. The main production process of hot-dip galvanized pipe fittings is: degreasing → rinsing → pickling → cleaning → dipping flux → hot air drying → hot-dip galvanizing → internal and external blowing → cooling → passivation and rinsing.

Relevant news

Inspection technology

Completely equipped with all detection and measuring devices and inspection tools （including on-line eddy current & flux leakage combining flaw detection | Ultrasonic flaw detection \flux leakage flaw detection \hydrostatic test machine etc..),the company is able to conduct the monitoring,inspection,tracking and examination for the total production process.

2022-04-02 16:14

Throughout-process Quality management

The company has implement the throughout-process Quality management that covers total manufacturing process.It has a full range of capacity in the total process planning,quality control,continued improvement and quick response as well.

2022-04-02 17:10

Quality Assurance

Shandong Dezheng steel co., Ltd has been granted the ISO9001 certificate for quality management system ,the certificate of ISO 14001 Environment management system and the certificate of GB/T28001 for Occupation health safety management .

2022-04-02 16:15

Process Equipment

As a professional seamless steel pipe manufacturer, Shandong Dezheng Steel Co.,Ltd has mature technology and excellent equipment. The hot rolling production line has introduced the world's advanced German high-precision rolling and expanding seamless steel pipe production line. At the same time, it is equipped with high-precision flattening machine, three-roll sizing machine, high-efficiency pipe cutting machine

2022-04-02 16:12

< 1 >

Phone：+86-18365800310

Email：eric.qu@dezhengsteel.com

Whatsapp : +86-18365800310

Factory add:NO.778,Daqu village ,Guangping township,Dongchangfu DisrictLiaocheng city ,Shandong province