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Production process for steel pipe fittings

A production process and pipe fitting technology, applied in the field of steel pipe fitting production process, can solve the problems of unattainable performance, unreasonable process specification, and high product defective rate, and achieve the effect of reducing process cost, ensuring product quality, and simplifying process flow

Active Publication Date: 2014-08-27
ZHEJIANG GOOD FITTINGS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above steps have different requirements for pipe fittings of different materials, different wall thicknesses, and different calibers. In actual operation, due to unreasonable process specifications, the size and performance of the produced pipe fittings often fail to meet the requirements of customers, and the product defective rate is high.

Method used

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Embodiment Construction

[0029] The embodiment of the production process of the steel pipe fitting of the present invention will be further described below.

[0030] A production process for steel pipe fittings (suitable for pipe fittings such as stainless steel, alloy steel and carbon steel elbows, tees, pipe caps, large and small ends, and flanges, with diameters ranging from DN15 to DN1200 in metric systems and 1 / 2″ to in imperial systems. 48″; wall thickness from 10S to 80S), including the following steps in turn:

[0031] 1) Cutting corners and grinding edges: the operator takes the pipe and checks its material and surface quality, measures the inner and outer diameters of the pipe, the thickness of the pipe and the plate, and cuts the pipe with a diameter of 8″ (inclusive) or less on the sawing machine, 10″ ( Including) above, use plasma cutting to cut the material. When using plasma cutting to cut the material, first mark the line according to the template and cut according to the line. When cu...

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Abstract

The invention discloses a production process for steel pipe fittings. The process includes the steps of: 1) blanking, corner cutting and burr grinding; 2) cold press molding; 3) half chamfering operation; 4) heat treatment; 5) shaping; 6) polishing; 7) shot and sand blasting; 8) finished product chamfering; 9) surface treatment; 10) inspection; 11) finished product marking; and 12) packaging and warehousing. The invention aims to provide the production process for steel pipe fittings, and the process is simple and reasonable, and the rate of defective products is low.

Description

technical field [0001] The invention relates to a production process of steel pipe fittings. Background technique [0002] Industrial pipe fittings are mainly used for pipeline connection of fluid transportation. The performance and quality of products are directly related to the transmission efficiency of pipelines and the excellent difference of equipment. Therefore, industrial pipe fittings have extremely strict requirements in terms of shape design, manufacturing process, and safety monitoring. [0003] Steel pipe fittings mainly include stainless steel, alloy steel and carbon steel elbows, tees, pipe caps, big and small heads and flanges and other accessories. The existing production process usually includes cutting, heat treatment, shaping, polishing, shot blasting, surface treatment, testing and other steps. The above steps have different requirements for pipe fittings of different materials, different wall thicknesses, and different calibers. In actual operation, d...

Claims

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Application Information

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IPC IPC(8): B21C37/15B23P15/00
Inventor 杨月洁罗先兵
Owner ZHEJIANG GOOD FITTINGS
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