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Hot-pushing elbow production process

A production process and elbow technology, which is applied in the field of hot push elbow production process, can solve the problems of high production cost, low product quality, and low yield, so as to improve product quality and production efficiency, coordinate reasonable matching, and reduce manufacturing costs. low effect

Inactive Publication Date: 2016-07-06
CHONGQING YU NAN POLYTRON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Elbow specifications: 90°φ273*9.5, material 20#, bending radius R=1.5D, the existing hot push elbow production process has unreasonable process arrangement, many processes, unreasonable selection of process parameters, and inappropriate collocation of process parameters Reasonable, and requires high operator experience, resulting in high production costs, low product quality, and low yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with embodiment:

[0017] A production process of a hot push elbow, comprising the steps of:

[0018] (1) Raw material re-inspection: According to the elbow specifications and processing methods, determine that the blank pipe is a steel pipe of φ219*12; check whether the supplier’s warranty is consistent with the real thing; inspect the appearance and geometric dimensions of raw materials, port diameter, wall thickness and length , should be marked immediately at the corresponding position; sampling for chemical composition analysis and mechanical performance testing, its 20 steel, in accordance with GB / T8163-2008 standard, chemical composition: C: 0.17-0.23%, Si: 0.17-0.37%, Mn: 0.35-0.65%, P≤0.035%, S≤0.035%, Cr:≤0.25%, Ni:≤0.30%, Cr:≤0.25%, mechanical properties: tensile strength Rm: ≥410Mpa, yield strength Rel≥ 245Mpa, elongation rate A%≥25, section shrinkage rate ψ%≥551.4, put into the raw materi...

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Abstract

The invention discloses a hot-pushing elbow production process. The hot-pushing elbow production process is characterized by comprising the following steps of (1) raw material rechecking, (2) the banking procedure, (3) pushing forming, (4) heat treatment, (5) the reshaping procedure, (6) the sand blasting and descaling procedure, (7) inspection, (8) groove preparation, (9) finished product overall inspection, and (10) surface treatment, identification and packaging. According to the hot-pushing elbow production process, the procedures are reasonable, the manufacturing cost is low, parameters are matched reasonably and cooperatively, and product quality and production efficiency can be improved effectively.

Description

technical field [0001] The invention relates to a production process of a hot pushing elbow. Background technique [0002] Elbow specifications: 90°φ273*9.5, material 20#, bending radius R=1.5D, the existing hot push elbow production process has unreasonable process arrangement, many processes, unreasonable selection of process parameters, and inappropriate collocation of process parameters Reasonable, and requires high operator experience, resulting in high production costs, low product quality, and low yield. Contents of the invention [0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a production process of hot push elbow with reasonable process and low manufacturing cost. [0004] In order to achieve the above object, the present invention provides a production process for a hot push elbow, which is characterized in that it includes the following steps: [0005] (1) Raw material ...

Claims

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Application Information

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IPC IPC(8): B23P15/00
Inventor 李富朝
Owner CHONGQING YU NAN POLYTRON TECH
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