Pipe fitting machining technology

A processing technology and pipe fitting technology, applied in the field of metal processing, can solve the problems of imperfect processing technology and rough processing of pipe fittings, and achieve the effect of complete processing technology, fine workmanship and long service life.

Inactive Publication Date: 2014-11-26
JIANGSU HAIWEI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In order to solve the problems of rough processing of pipe fittings and imperfec

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A pipe fitting processing technology, comprising the steps of:

[0021] a. Cutting: The materials used for the pipe fittings are mainly pipes, plates and bars. The shape, size and other requirements of the blanks are carried out according to the process regulations of different products. The cutting methods of the pipes include band sawing machine or bow sawing machine cutting, gas cutting, plasma cutting;

[0022] b. Heating: When the pipe fittings are formed by hot push elbow or hot bend pipe, high-frequency induction heating method is adopted. The heating method is continuous heating synchronously with the elbow or bend pipe forming process. It is heated and completes the forming process at a temperature of 160°;

[0023] c. Welding: The pipe fittings are pipe fittings made of welded pipes, the welding ground wire must be fixed at the end of the pipe with stainless steel clips, and the welding temperature is 260°;

[0024] d. Heat treatment: the heat treatment temp...

Embodiment 2

[0030] A pipe fitting processing technology, comprising the steps of:

[0031] a. Cutting: The materials used for the pipe fittings are mainly pipes, plates and bars. The shape, size and other requirements of the blanks are carried out according to the process regulations of different products. The cutting methods of the pipes include band sawing machine or bow sawing machine cutting, gas cutting, plasma cutting;

[0032] b. Heating: When the pipe fittings are formed by hot push elbow or hot bend pipe, high-frequency induction heating method is adopted. The heating method is continuous heating synchronously with the elbow or bend pipe forming process. It is heated and completes the forming process at a temperature of 170°;

[0033] c. Welding: The pipe fittings are pipe fittings made of welded pipes. The welding ground wire must be fixed at the end of the pipe with stainless steel clips, and the welding temperature is 320°;

[0034] d. Heat treatment: the heat treatment temp...

Embodiment 3

[0040] A pipe fitting processing technology, comprising the steps of:

[0041] a. Cutting: The materials used for the pipe fittings are mainly pipes, plates and bars. The shape, size and other requirements of the blanks are carried out according to the process regulations of different products. The cutting methods of the pipes include band sawing machine or bow sawing machine cutting, gas cutting, plasma cutting;

[0042] b. Heating: When the pipe fittings are formed by hot push elbow or hot bend pipe, high-frequency induction heating method is adopted. The heating method is continuous heating synchronously with the elbow or bend pipe forming process. It is heated and completes the forming process at a temperature of 210°;

[0043] c. Welding: The pipe fittings are pipe fittings made of welded pipes. The welding ground wire must be fixed at the end of the pipe with stainless steel clips, and the welding temperature is 350°;

[0044] d. Heat treatment: the heat treatment temp...

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PUM

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Abstract

The invention discloses a pipe fitting machining technology. According to the pipe fitting machining technology, a pipe fitting is mainly made of a pipe, a plate and a rod, the shape, the size and other requirements of a blank are realized according to technology stipulations of different products, a high-frequency induction heating method is adopted in the pipe fitting when a hot pushing bend or a hot bending elbow is formed, the temperature ranges from 160 DEG C to 220 DEG C, the pipe fitting is made of welded pipes, a welding ground wire must be firmly fixed to the end of the pipe through a stainless steel clamp, the welding temperature ranges from 260 DEG C to 370 DEG C, the pipe fitting thermal treatment temperature is not lower than 723 DEG C, rust and scratches on the surface of the pipe fitting are removed through surface treatment methods, such as abrasive blasting, shot blasting, grinding and acid pickling, of the pipe fitting, cutting is mainly completed through a universal machine tool, and surface protection of carbon steel and alloy steel is usually achieved through a painting method. The pipe fitting machining technology is complete, energy and materials are saved, workmanship is exquisite, and the service life is long.

Description

technical field [0001] The invention relates to pipe fitting processing, in particular to a pipe fitting processing technology, which belongs to the field of metal processing. Background technique [0002] Pipe fittings are parts that connect pipes into pipelines. According to the connection method, they can be divided into four categories: socket fittings, threaded fittings, flanged fittings and welded fittings. Mostly made of the same material as the pipe. There are elbows (elbows), flanges, tees, crosses (crossheads) and reducers (big and small heads). Elbows are used where pipes turn; flanges are used to connect pipes and pipes to each other, and are connected to pipe ends; tee pipes are used where three pipes gather; four-way pipes are used where four pipes gather; Diameter pipes are used where two pipes of different diameters are connected. At present, many enterprises in my country produce pipe fittings, with an annual output of about 30,000 tons, of which about 30% ...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00F16L9/02
Inventor 张贤
Owner JIANGSU HAIWEI GROUP
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