Flat Welded Flange Finished Product

The production of flat welding flange should go through a series of processing, such as rough cutting, fine turning, boring, drilling, heat treatment, quality inspection, etc. We process the flat welding flange in different stages according to the requirements of customers. And there are certificates such as API recognized by american petroleum institute, and the quality can be guaranteed. The flat welded flanges we process and produce are mainly used in the accessories of oil field equipment. The materials used in processing and production are flexible and can be forged according to the shape and size provided by customers.
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Product Details

Flange is a common mechanical connector, which is used to connect two or more parts together and provide a stable connection. It is usually made of round metal or plastic and has some fixed holes for the perforation of bolts or screws.

The main function of flange is to create a sealed and stable connection between connection points, so as to ensure the reliability of transmission or control of fluid, gas or solid. They are widely used in piping systems, valves, pumps, containers and other mechanical equipment.

slip-on weld flange

Material1020
Hardness120-187
Inner diameter387.3
Outside diameter502.5

According to different application scenarios and requirements, flanges are divided into many types, such as welded flanges, spiral flanges, blind flanges, sliding flanges, chest flanges and so on. Each type of flange has a specific design and function to meet different connection requirements.

Our Baohua Company was founded in 1969. After three generations' hard work, it now covers an area of 50,000 ㎡ and has a building area of 25,000 ㎡. There are 260 employees and 46 engineering technicians. The annual output of forgings is 30,000 tons. Mainly in the automobile, hydraulic machinery, wind power generation, petroleum machinery parts, construction machinery, mining, metallurgy, shipbuilding machinery and other industries to produce related accessories. The products sold are oriented at home and abroad. The company has its own technology research and development organization "Zhangqiu Baohua Forging Technology Development Center".

The company's main management, technical personnel and key equipment operators have more than 15 years of working experience in the same industry.

And since 2001, the company has successively passed ISO9001, ISO14001 and APIQ1, and obtained the "Special Equipment Manufacturing License".

API 20B .png

At present, our forging equipment in Baohua Company mainly includes: five tons and three tons of free forging hammers, 2500 tons, 1000 tons and 600 tons of friction presses, six large plywood hammers and various types of air hammers; There are more than 60 sets of machining equipment, including CA5116E*1015 vertical lathe, CW61100B and CW50 lathe. There are 2 sets of well-type and trolley-type electric furnaces for heat treatment. There are two tempering furnaces, which can complete product normalizing, annealing, tempering and other technological treatments. Equipped with a nationally recognized physical and chemical laboratory, the main testing equipment is a spectrometer imported from Germany with a value of nearly 500,000 yuan; Brinell hardness tester imported from the United States with a value of 120 thousand yuan can carry out ultrasonic nondestructive testing and mechanical performance test.

Lathe machining

For details, please contact us by email. zhangqiubaohua@126.com


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