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Processing technique of reversing valve body

A processing technology and reversing valve technology, which is applied in the field of reversing valve body processing technology, can solve the problems of enterprise loss, reduced service life of reversing valve, imperfect processing method of reversing valve body, etc., and improve the overall use Long life, reduced loss, good quality of the valve body

Inactive Publication Date: 2015-09-02
WUXI YANGGONG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is a valve that realizes the communication, cutting and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. However, in the prior art, due to the imperfect processing method of the reversing valve body, the service life of the reversing valve as a whole is reduced , causing unnecessary losses to the enterprise

Method used

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Examples

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Embodiment Construction

[0017] A process for processing a reversing valve body according to an embodiment of the present invention includes the following steps:

[0018] 1) Cutting: Saw square steel billets according to the size of the reversing valve;

[0019] 2) Forging: use free forging or die forging to forge the blank, the unilateral machining allowance of free forging is more than 5mm, and the unilateral machining allowance of die forging is more than 2.5mm;

[0020] 3) Heat treatment: first anneal the forging, then quench and temper at high temperature;

[0021] 4) Milling shape: milling the shape of the valve body, using the cutter head to mill the large surface, and using the end mill to mill the steps;

[0022] 5) Drill mounting holes: use radial drilling machine or milling center to process mounting holes;

[0023] 6) Grinding the mounting surface: Grinding the mounting surface with a grinding wheel;

[0024] 7) Boring: It is processed by a horizontal machining center, and the main hole...

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PUM

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Abstract

The invention discloses a processing technique of a reversing valve body. The processing technique includes the following steps: (1) blanking: sawing a square billet according to the dimensions of a reversing valve; (2) forging: forging the billet through hammer forging or die forging, wherein the single-side working allowance of free forging is above 5mm and the single-side working allowance of die forging is above 2.5mm; (3) thermal treatment: annealing forge pieces and then conducting quenching and high-temperature tempering; (4) milling outline: milling the outline of a valve body, milling a big surface with a cutter and milling steps with an end mill; (5) drilling mounting holes; (6) grinding a mounting surface; (7) boring: processing through a horizontal machining center, wherein main holes are drilled by a U-shaped drill in advance and are than roughly and finely drilled; (8) tapping, burring and coating antirust agents; (9) galvanizing: galvanizing the valve body with the antirust agents to improve the antirust performance of the valve body. The processing technique of the reversing valve body is perfect; the valve body produced through the processing technique is good in quality, the integral service life of the reversing valve is prolonged, cost is reduced, and loss of enterprises is also reduced.

Description

technical field [0001] The invention relates to the field of valve components, in particular to a process for processing a reversing valve body. Background technique [0002] The reversing valve is a directional control valve with more than two flow forms and more than two oil ports. It is a valve that realizes the communication, cutting and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. However, in the prior art, due to the imperfect processing method of the reversing valve body, the service life of the reversing valve as a whole is reduced , causing unnecessary losses to the enterprise. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a processing technology for the valve body of the reversing valve. Reduce losses. [0004] The purpose of the present invention is specifically achieved through the following technical solutions: [0005] A process for process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/001
Inventor 杨龙兴
Owner WUXI YANGGONG MACHINERY MFG
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