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Introduction to the Heat Treatment Process of Forging Flange

Time : 2023-06-26

Forging Flange is also called flange disc or flange. Flange is the part that makes the interconnection between shaft and shaft.Forging flange is the part that makes the tube and pipe interconnected, connected at the end of the tube. The flange has an eyelet and the bolt makes the two flanges tightly connected. The flange is sealed with a gasket. Flange is divided into threaded connection (silk connection) flange and welding flange.

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Flange is a kind of welded pipe fittings. Such fittings are used to match with pipes. There are machined and unmachined ones. Some castings are made by casting the flange all together. Welded ones, on the other hand, are processed later. They can be processed at the factory or at the construction site. The material is also a variety of carbon steel, alloy steel, stainless steel, etc.

Carbon steel: ASTM/ASME A234 WPB, WPC

Alloy: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911, 15Mo3 15CrMoV, 35CrMoV

Stainless Steel:ASTM/ASME A403 WP 304-304L-304H-304LN-304N

ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti

ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

Low temperature steel:ASTM/ASME A402 WPL3-WPL 6

High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Flange in the production of heating, insulation, cooling three processes in these processes, the performance of the flange will have different changes, the same flange in the heating of the product performance will be different, such as stainless steel flange forgings superior performance is obtained through the heating and cooling of the flange, while the stainless steel flange heating process is one of the important parameters of the heat treatment process.

In addition, the heating temperature of the flange forgings is one of the important process parameters of the heat treatment process, the selection and control of heating temperature, is to ensure the quality of heat treatment is the main issue.

Heating temperature varies with the treated metal materials and heat treatment purposes, but generally are heated to above the phase change temperature, in order to obtain high temperature organization. Heating is one of the important processes of heat treatment. There are many heating methods for heat treatment of flanged metals, the earliest being using charcoal and coal as heat sources, and then applying liquid and gas fuels. Now there are many manufacturers are using electric applications, which are easy to control and no environmental pollution. Using these heat sources can be directly heated, but also molten salt or metal, floating particles for indirect heating. At the same time the performance of the flange varies depending on the cooling method and the main control of the cooling rate.

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Hunan Jetvision Industrial Co.Ltd is a professional supplier which provide kinds of flanges with high quality and low factory price, such as slip on flange, weld neck flanges, socket weld flange, blind flange, lap joint flange, Thread/Screwed Flange, etc.

Hunan Jetvision Industrial Co.,Ltd main provide alloy, stainless steel and copper nickel alloy material, such as incoloy 800, hastelloy c276, monel 400, inconel 625, 15CrMo alloy, copper c71500, s32205 duplex stainless steel, 15-5PH stainless steel 904L stainless steel, etc. On the basis of this, we provide kinds of products, including forged flanges, forgings rings, forged shaft, forgings flanges, forged bars, forging block, forged cylinder, etc. With low factory price and top quality.

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