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A manufacturing process of an environmentally friendly butterfly valve body and its products

A manufacturing process, butterfly valve technology, applied in the field of butterfly valve body, environmentally friendly butterfly valve body manufacturing process, can solve the problems of easy freezing cracking, easy air drying, etc.

Active Publication Date: 2022-01-04
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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  • A manufacturing process of an environmentally friendly butterfly valve body and its products
  • A manufacturing process of an environmentally friendly butterfly valve body and its products
  • A manufacturing process of an environmentally friendly butterfly valve body and its products

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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Abstract

The invention relates to a manufacturing process of an environment-friendly butterfly valve body, which includes separately preparing a valve seat and a connecting head, and making the valve body by cold stamping, finishing, sawing, laser welding and other processes, and the manufactured valve body Low cost, high efficiency, high strength and environmental protection. Its high strength solves the problem that the cast valve body is easy to freeze and crack at low temperature and easy to dry at normal temperature, and improves the service life. At the same time, it is lower than the original process cost and greatly increases the efficiency enterprise competitiveness.

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 aka 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 bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00F16K27/02
CPCB23P15/001F16K27/0218
Inventor 项定洪
Owner 项定洪