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Flat elliptic cavity blank body containing valve body and valve cover suitable for multi-valve-type valve and forming method

A molding method and green body technology, applied in the direction of valve device, valve details, valve shell structure, etc., can solve the problems of poor casting compactness and quality, molds that cannot be used universally, and molds that are not universally used, so as to achieve good streamlines and processing performance. Low energy consumption and human resource consumption, good environmental protection and compact performance

Pending Publication Date: 2021-06-25
陈崇南
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The casting process has poor environmental protection, molds of the same specification and different valves cannot be used universally, and molds of the same valve with the same specifications and different pressures cannot be used universally, and the castings have problems of poor compactness and quality
The material utilization rate of the valve body produced by the die forging process is lower than that of casting, the mold is not universal, and the cost is high, while the material utilization rate of the valve body produced by the free forging process is lower, and the processing is time-consuming, so the existing casting and forging processes produce valve bodies. Disadvantages of low efficiency, long period, high cost

Method used

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  • Flat elliptic cavity blank body containing valve body and valve cover suitable for multi-valve-type valve and forming method
  • Flat elliptic cavity blank body containing valve body and valve cover suitable for multi-valve-type valve and forming method
  • Flat elliptic cavity blank body containing valve body and valve cover suitable for multi-valve-type valve and forming method

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Embodiment Construction

[0048]A green body (hereinafter referred to as green body) suitable for multi-valve flat elliptical cavity containing valve body and bonnet (hereinafter referred to as green body) and a general hydraulic forming processing method. The blank is designed according to the requirements of being suitable for different pressures and valves, facilitating forming, and high versatility. The body shape, the left end 11 and the right end 12 of the green body have a cylindrical section with the same diameter, the diameter D of the cylindrical section is the same as the outer diameter D of the seamless steel tube blank (hereinafter referred to as the tube blank), and the flat oval middle section of the blank body 13 The long axis is large in size and can accommodate the movement of larger opening and closing parts in various valves. The upper height H of the middle section 13 can be processed at different heights depending on the valve. There is a small cylindrical section 14 on the top of t...

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Abstract

The invention discloses a flat elliptic cavity blank body containing a valve body and a valve cover suitable for a multi-valve-type valve and a forming method. Cylindrical sections with the same diameter are arranged at the left end and the right end of the blank body in the horizontal direction, and the diameter of each cylindrical section meets the standard requirement of the valve; the size of a flat elliptic middle section in the vertical direction of the blank body ensures that the middle section can be used for accommodating opening and closing parts of various valves as a motion space and installing sealing parts, and the upper part and the lower part of the middle section are designed according to the heights of different valves; and cylindrical-conical transition sections suitable for installing a valve seat are arranged at the transition positions of the middle section of the blank body and the cylindrical sections at the left end and the right end. The flat elliptic cavity blank body has the advantages of being environment-friendly, good in working performance, good in product quality and convenient to process.

Description

technical field [0001] The invention relates to a green body and a forming method of a flat elliptical cavity containing a valve body and a valve cover suitable for multi-valve valves. Background technique [0002] The existing hydroforming process is mainly used for the processing of simple and standardized pipe fittings such as tees and crosses, and is not suitable for valves (including gate valves, flat valves, check valves, etc.), which have complex shapes and different dimensions. processing. Most of the existing gate valves, plate check valves and other valve blanks adopt casting and forging processes. The casting process has poor environmental protection, molds of the same specification and different valves cannot be used universally, and molds of the same valve with the same specifications and different pressures cannot be used universally, and the castings have problems of poor compactness and quality. The material utilization rate of the valve body produced by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K27/00F16K27/08F16K27/04F16K27/10B21D26/033
CPCF16K27/00F16K27/08F16K27/04F16K27/10B21D26/033
Inventor 陈崇南
Owner 陈崇南
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