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Manufacturing process of environment-friendly butterfly valve body and product of manufacturing process

A manufacturing process, butterfly valve technology, applied in the manufacturing process of environmentally friendly butterfly valve body, butterfly valve body field, can solve the problems of easy freezing cracking, easy air drying, etc., achieve low cost, fast welding speed, small deformation effect

Active Publication Date: 2020-12-08
项定洪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Provide a low-cost, high-efficiency, high-strength and environmentally friendly butterfly valve body manufacturing process and the butterfly valve body made by this process. cracking and easy to dry at room temperature, which improves the service life. At the same time, it is lower than the original process cost and high efficiency, which greatly increases the competitiveness of enterprises.

Method used

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  • Manufacturing process of environment-friendly butterfly valve body and product of manufacturing process
  • Manufacturing process of environment-friendly butterfly valve body and product of manufacturing process
  • Manufacturing process of environment-friendly butterfly valve body and product of manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A manufacturing process of an environment-friendly butterfly valve body, comprising the following steps:

[0053] S1: Prepare the semi-finished valve seat, place the steel plate in the cold stamping drawing die according to the size of the valve body, punch the steel plate out of the valve disc, extension part, upper part for the secondary drawing of the semi-finished valve seat through the stamping equipment The outer contour of the valve neck and the lower valve neck to make a semi-finished valve seat;

[0054] Prepare the semi-finished connection head, cut the whole steel pipe into several small sections according to the size of the valve body, and use it as a semi-finished connection head;

[0055] S2: The semi-finished valve seat obtained in step S1 is placed in a cold stamping mold, and the valve disc, extension, upper valve neck and lower valve neck in the semi-finished valve seat are drawn and shaped again by stamping equipment, so as to make a valve seat;

[...

Embodiment 2

[0061] A manufacturing process of an environment-friendly butterfly valve body, comprising the following steps:

[0062] S1: Prepare the semi-finished valve seat, place the steel plate in the cold stamping drawing die according to the size of the valve body, punch the steel plate out of the valve disc, extension part, upper part for the secondary drawing of the semi-finished valve seat through the stamping equipment The outer contour of the valve neck and the lower valve neck to make a semi-finished valve seat;

[0063] Prepare the semi-finished connection head, cut the whole steel pipe into several small sections according to the size of the valve body, and use it as a semi-finished connection head;

[0064] S2: The semi-finished valve seat obtained in step S1 is placed in a cold stamping mold, and the valve disc, extension, upper valve neck and lower valve neck in the semi-finished valve seat are drawn and shaped again by stamping equipment, so as to make a valve seat;

[...

Embodiment 3

[0070] A manufacturing process of an environment-friendly butterfly valve body, comprising the following steps:

[0071] S1: Prepare the semi-finished valve seat, place the steel plate in the cold stamping drawing die according to the size of the valve body, punch the steel plate out of the valve disc, extension part, upper part for the secondary drawing of the semi-finished valve seat through the stamping equipment The outer contour of the valve neck and the lower valve neck to make a semi-finished valve seat;

[0072] Prepare the semi-finished connection head, cut the whole steel pipe into several small sections according to the size of the valve body, and use it as a semi-finished connection head;

[0073] S2: The semi-finished valve seat obtained in step S1 is placed in a cold stamping mold, and the valve disc, extension, upper valve neck and lower valve neck in the semi-finished valve seat are drawn and shaped again by stamping equipment, so as to make a valve seat;

[...

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PUM

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Abstract

The invention relates to a manufacturing process of an environment-friendly butterfly valve body. The manufacturing process comprises the following steps: respectively preparing a valve seat and a connector, and manufacturing the valve body by adopting the processes of cold stamping drawing, finish machining, saw cutting, laser welding and the like, so that the manufactured valve body is low in cost, high in efficiency and strength and environment-friendly. Due to the high strength of the valve body, the problems that a cast valve body is prone to frost cracking at low temperature and prone toair drying at normal temperature are solved, the service life is prolonged, meanwhile, the cost is lower than that of an original process, efficiency is high, and enterprise competitiveness is greatly improved.

Description

technical field [0001] The invention relates to the field of valves, in particular to a manufacturing process of an environment-friendly butterfly valve body and a butterfly valve body made by the process. Background technique [0002] butterfly valve flap valve , is a simple structure Control valve The butterfly valve, which can be used for switch control of low-pressure pipeline media, means that the closing part (disc or butterfly plate) is a disc, which rotates around the valve shaft to achieve opening and closing. closure A valve that can be used to control air, water, steam , various corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. It mainly plays the role of cutting and throttling on the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjusting [0003] The butter...

Claims

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Application Information

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IPC IPC(8): B23P15/00F16K27/02
CPCB23P15/001F16K27/0218
Inventor 项定洪
Owner 项定洪