C276 Hastelloy alloy flange and production technology thereof

A technology of Hastelloy and flange, applied in the field of flange and its production process, C276 Hastelloy flange and its production process, can solve the problems of poor wear resistance, achieve enhanced connection effect, low cost, and reduce cost Effect

Active Publication Date: 2015-07-22
WUXI HUAERTAI MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Flanges are also called flange flanges or flanges. Flanges are parts that are connected to each other between pipes. They are used for connection between pipe ends. They are also useful for flanges of equipment importers and exporters. For the connection between equipment, alloy flanges are generally connected to pipelines used to transport special materials, which may work in various harsh environments such as high temperature and high pressure. In actual use, the existing alloy flanges have poor wear resistance, which is different from At the same time, the sealing welding between the flange and the pipeline needs further improvement

Method used

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  • C276 Hastelloy alloy flange and production technology thereof
  • C276 Hastelloy alloy flange and production technology thereof
  • C276 Hastelloy alloy flange and production technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A C276 Hastelloy flange provided in this embodiment has a structure such as Figure 1-3 As shown, including upper and lower flanges 1 and lower flanges 2 which are arranged symmetrically up and down and have the same structure, such as image 3 As shown, the upper flange 1 and the lower flange 2 are fixedly connected by a fixing device, and the upper flange 1 is composed of a flange body 3 and a sleeve 4 arranged on the flange body 3, wherein:

[0043] The flange body 3 has a two-layer structure including an alloy layer 31 and a wear-resistant layer 32 arranged concentrically. The alloy layer 31 is made of C276 Hastelloy steel, and the wear-resistant layer 32 is made of ultra-high molecular weight polyethylene wear-resistant material. The alloy layer 31 and the wear-resistant layer 32 are both cylindrical structures, and the diameter of the alloy layer 31 does not exceed the diameter of the wear-resistant layer 32. The alloy layer 31 and the wear-resistant layer 32 are ...

Embodiment 2

[0047] This embodiment provides the production process of the C276 Hastelloy flange in Example 1. The forging process of the C276 Hastelloy flange specifically includes the following steps:

[0048] (1) According to the shape of the C276 Hastelloy flange, use quartz sand, water glass and bentonite as the molding materials to make the corresponding casting mold, and open the gate on the casting mold, and then place the casting mold in the oven Drying is carried out at 150°C, and the surface of the mold after drying is coated with a layer of paint. The paint contains the following components in parts by mass:

[0049] Zircon powder: 50 parts, polyvinyl acetal resin: 10 parts, phenolic resin: 10 parts, organic bentonite: 4 parts, titanium dioxide: 2 parts;

[0050] (2) Send the raw material of C276 Hastelloy flange into EBT electric arc furnace for rough refining to melt and oxidize the components of C276 Hastelloy flange. The LF refining furnace performs refining and degassing ...

Embodiment 3

[0060] This embodiment provides the production process of the C276 Hastelloy flange in Example 1. The forging process of the C276 Hastelloy flange specifically includes the following steps:

[0061] (1) According to the shape of the C276 Hastelloy flange, use quartz sand, water glass and bentonite as the molding materials to make the corresponding casting mold, and open the gate on the casting mold, and then place the casting mold in the oven Drying is carried out at 190°C, and a layer of paint is coated on the surface of the mold after drying, and the paint contains the following components in parts by mass:

[0062] Zircon powder: 40 parts, polyvinyl acetal resin: 15 parts, phenolic resin: 15 parts, organic bentonite: 2 parts, titanium dioxide: 1 part;

[0063] (2) Send the raw material of the C276 Hastelloy flange into the EBT electric arc furnace for rough refining to melt and oxidize the components of the C276 Hastelloy flange. The LF refining furnace performs refining a...

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Abstract

The invention discloses a C276 Hastelloy alloy flange. The C276 Hastelloy alloy flange comprises an upper flange body and a lower flange body which are of the same structure, wherein the upper flange body and the lower flange body are fixedly connected through a fixing device, the upper flange body is composed of a flange main body and a sleeve, the flange main body is of a two-layer structure and comprises an alloy layer and an abrasion-resistant layer which are coaxially arranged, the flange main body is further evenly provided with bolt holes, the sleeve comprises an inner pipe, an outer pipe and a middle pipe which are all coaxially arranged in a sleeving mode, the fixing device comprises a fixing groove containing the upper flange body and the lower flange body, a fixing edge and a fixing pin, holes are formed in the annular periphery of the fixing groove, and a fixing hole is formed in the fixing edge. The invention further relates to a production technology of the C276 Hastelloy alloy flange. The production technology is simple and easy to perform, low in production cost, small in pollution in the production process, and good in safety, the produced C276 Hastelloy alloy flange has good corrosion resistance and abrasion resistance, seal welding performance of the C276 Hastelloy alloy flange and a pipeline is excellent, assembly and disassembly are convenient, and installing efficiency is improved.

Description

technical field [0001] The invention relates to a flange and a production process thereof, in particular to a C276 Hastelloy flange and a production process thereof, and belongs to the field of mechanical technology. Background technique [0002] Flanges are also called flange flanges or flanges. Flanges are parts that are connected to each other between pipes. They are used for connection between pipe ends. They are also useful for flanges used by equipment importers and exporters. For the connection between equipment, alloy flanges are generally used to connect pipelines for transporting special materials, which may work in various harsh environments such as high temperature and high pressure. In actual use, the existing alloy flanges have poor wear resistance, which is different from At the same time, the sealing welding between the flange and the pipeline needs further improvement. [0003] C-276 Hastelloy belongs to the nickel-molybdenum-chromium-iron-tungsten nickel-b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L23/032F16L23/024B23P15/00B22C3/00C22C19/05C22F1/10B21B37/74
CPCB21B37/74B22C3/00B23P15/00C22C19/05C22F1/10F16L23/024F16L23/032
Inventor 李忠云
Owner WUXI HUAERTAI MACHINERY MFG
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