Processing method of large diameter connection flange plate

A processing method and large-diameter technology, applied in the field of flanges, can solve the problems of low processing accuracy, inability to improve production efficiency, and inability to reduce processing costs, and achieve the effects of improving processing accuracy, scientific and reasonable processing methods, and reducing production costs.

Inactive Publication Date: 2019-06-07
无锡市星达石化配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The flange is a part that connects the pipe to the pipe. It is connected to the pipe end. There are holes in the flange. The bolts make the two flanges tightly connected. The most common in engineering, flanges are used in pairs, and there is a set of processing procedures for flanges during processing. The existing processing procedures are blanking, normalizing, rough turning, quenching and tempering, semi-finishing turning, rough grinding, Fine grinding and inspection, this process cannot reduce processing costs, the processing accuracy is relatively low, and cannot improve production efficiency

Method used

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  • Processing method of large diameter connection flange plate

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Effect test

Embodiment 1

[0033] A method for processing a large-diameter connection flange, comprising the following steps:

[0034] S1: Select the raw material, select the raw material of 45 steel material;

[0035] S2: Inspect raw materials, inspect raw materials with reference to standards, and prevent bad materials from affecting processing;

[0036] S3: Determine the amount of material used, and determine the amount of material used and the size of the flange according to the drawings;

[0037] S4: Carry out rough turning, use cemented carbide steel turning tool grade YT5 for rough turning, the amount of material required for cutting, choose 12° for the front angle and 8° for the back angle of rough turning, the size of the tool holder is 16×25mm2, pa≤3mm , and when the workpiece diameter is 140mm, f=0.8~1.2rmm;

[0038] S5: Initial polishing, polishing the material for the first time to make the surface of the material smooth;

[0039] S6: Rough forging, heat treatment for forging, the temper...

Embodiment 2

[0053] A method for processing a large-diameter connection flange, comprising the following steps:

[0054] S1: Select the raw material, select the raw material of 45 steel material;

[0055] S2: Inspect raw materials, inspect raw materials with reference to standards, and prevent bad materials from affecting processing;

[0056] S3: Determine the amount of material used, and determine the amount of material used and the size of the flange according to the drawings;

[0057] S4: Carry out rough turning, use cemented carbide steel turning tool grade YT5 for rough turning, the amount of material required for cutting, the front angle of rough turning is 15° and the back angle is 6°, the size of the tool holder is 16×25mm2, pa≤3mm , and when the workpiece diameter is 140mm, f=0.9~1.4rmm;

[0058] S5: Initial polishing, polishing the material for the first time to make the surface of the material smooth;

[0059] S6: Rough forging, heat treatment for forging, the temperature env...

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Abstract

The invention discloses a processing method of a large diameter connection flange plate. The processing method comprises the following steps of S1: the raw material selection; S2: the raw material inspection, namely, the 45 steel material raw material selection; S3: the material amount determination; S4: the rough turning; S5: the initial polishing; S6: the rough forging; S7: the re-polishing; S8:fine-forging; S9: the edge cutting, namely, the forged fly edge cutting; S10: the drilling, namely, the drilling on the material through a drilling mold; S11: the heat treatment, namely, the heatingmodulation; S12: post-polishing; S13: the benchmark determination, namely, the benchmark center determination of the flange plate; S14: the fine turning; S15: the deburring; S16: the processing completing; S17: the washing; and S18: the inspection, namely, the processed flange plate inspection according to the drawings. The processing method is more scientific and reasonable, and can reduce the production cost, the processing method steps of the processing method are simple, the automated batch processing of the flange plates can be achieved, and the processing accuracy, the product pass rateand production efficiency can be improved.

Description

technical field [0001] The invention relates to the field of flanges, in particular to a processing method for connecting flanges with large diameters. Background technique [0002] The flange is a part that connects the pipe to the pipe. It is connected to the pipe end. There are holes in the flange. The bolts make the two flanges tightly connected. The most common in engineering, flanges are used in pairs, and there is a set of processing procedures for flanges during processing. The existing processing procedures are blanking, normalizing, rough turning, quenching and tempering, semi-finishing turning, rough grinding, Fine grinding and inspection, this process cannot reduce the processing cost, the processing accuracy is relatively low, and the production efficiency cannot be improved. Contents of the invention [0003] The purpose of the present invention is to provide a method for processing large-diameter connecting flanges to solve the problems raised in the above-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 费新海
Owner 无锡市星达石化配件有限公司
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