Whole forging process method of super-high pressure valve body

A technology of integral forging and process method, which is applied in the processing field of mechanical parts, can solve the problems that the concentricity of the disc body and the guide body is difficult to guarantee, the concentricity is difficult to guarantee, and the quality of the product is affected, so as to save equipment maintenance costs and time, The effect of good product quality and high concentricity

Inactive Publication Date: 2014-08-06
卢清华
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the welding method is used, the material of the valve body can only be made of low-carbon alloy steel, which restricts the performance improvement of the product and shortens the service life, and it is difficult to guarantee the concentricity of the disc body and the guide body, which seriously affects the quality of its products.
The bolt connection method is also difficult to guarantee the concentricity, and the connection strength is limited and the service life is short

Method used

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  • Whole forging process method of super-high pressure valve body

Examples

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Comparison scheme
Effect test

example 1

[0010] Example 1: see figure 1 , using the present invention to produce such as figure 1 The method shown for the Valerian body includes the following process: select 42CrMo round steel blanking → use intermediate frequency furnace to heat the round steel material to 1250 ° C → hot forging (forging in a forging die) → forming → inspection → storage.

example 2

[0011] Example 2: adopt the present invention to produce such as figure 1 The method shown for the Valerian body includes the following process: select 40CrNiMo round steel blanking → use intermediate frequency furnace to heat the round steel material to 1240 ° C → hot forging (forging in a forging die) → forming → inspection → storage.

example 3

[0012] Example 3: adopt the present invention to produce such as figure 1 The method shown for the Valerian body includes the following process: select 20CrNiMo round steel blanking → use intermediate frequency furnace to heat the round steel material to 1230 ° C → hot forging (forging in a forging die) → forming → inspection → storage.

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Abstract

The invention relates to a processing technology of a mechanical part, in particular to a whole forging process method of a super-high pressure valve body. The whole forging process method is characterized by comprising the following processes of: blanking round steel, heating to an initial forging standard temperature plus 50 DEG C, die-forging, forming, testing and warehousing. The whole forging process method has the benefits that the defects that an existing valve body is processed by welding or assembly, a disc body and a guide body have low concentricity, the service life is short, and the like are overcome; the valve body manufactured by the whole forging process method is mainly used in high-power fracturing equipment for oil drilling operation.

Description

technical field [0001] The invention relates to the processing technology of mechanical parts, in particular to an integral forging process method of an ultra-high pressure valve body. Background technique [0002] The valve body is one of the important components in oil drilling and production fracturing equipment. For the structure of the valve body, see figure 1 , it consists of a disc body and a guide body. Due to its special structure, the prior art usually casts the disc body 1 (disc part) and the guide body 2 (four-claw structure) separately, and then welds or adopts Connecting parts such as bolts are assembled into one. If the welding method is used, the material of the valve body can only be made of low-carbon alloy steel, which restricts the performance improvement of the product and shortens the service life, and it is difficult to guarantee the concentricity of the disc body and the guide body, which seriously affects the quality of its products. . The bolt co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/06
Inventor 卢清华
Owner 卢清华
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