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Forging process of precise sealing element

A seal and precision technology, applied in the field of forging, can solve the problems affecting the mechanical properties of the seal, the structure of the seal is coarse, the structure is loose, etc., to achieve the effect of eliminating internal defects, uniform internal deformation, and reducing stress difference

Inactive Publication Date: 2020-06-16
苏州市木冶机械锻造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned prior art can reduce the cutting amount of the main body and reduce the waste of raw materials during the processing process, there are defects such as coarse structure, many defects, and loose structure inside the seal processed by this process, which seriously affect the seal. Mechanical behavior

Method used

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  • Forging process of precise sealing element
  • Forging process of precise sealing element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1, such as figure 2 As shown, the forging process of precision seals includes the following steps:

[0027] S1, blanking, cutting the raw material into raw material segments with a diameter not smaller than the diameter of the seal;

[0028] S2, preheating, put the raw material section into a constant temperature environment with a temperature of 580°C, and keep it for 3 hours. The constant temperature environment is heated to the target temperature by a resistance furnace and kept warm. The stress difference inside and outside the body prevents cracks on the surface during the heating process and affects the quality of the output seal;

[0029] S3, heating, heating the preheated raw material section to 1100 ° C, and keeping it warm for 3 hours, the heating process is realized by raising the temperature of the resistance furnace to the target temperature;

[0030] S4, thickening, thickening the preheated raw material section by forging, then cooling naturally...

Embodiment 2

[0036] Example 2, such as figure 2 As shown, the forging process of precision seals includes the following steps:

[0037] S1, blanking, cutting the raw material into raw material segments with a diameter not smaller than the diameter of the seal;

[0038] S2, preheating, put the raw material section into a constant temperature environment with a temperature of 600°C, and keep it for 3 hours. The constant temperature environment is heated to the target temperature by a resistance furnace and kept warm. The stress difference inside and outside the body prevents cracks on the surface during the heating process and affects the quality of the output seal;

[0039] S3, heating, heating the preheated raw material section to 1220 ° C, and keeping it warm for 3 hours, the heating process is realized by raising the temperature of the resistance furnace to the target temperature;

[0040] S4, thickening, thickening the preheated raw material section by forging, and then cooling natur...

Embodiment 3

[0046] Example 3, such as figure 2 As shown, the forging process of precision seals includes the following steps:

[0047] S1, blanking, cutting the raw material into raw material segments with a diameter not smaller than the diameter of the seal;

[0048] S2, preheating, put the raw material section into a constant temperature environment with a temperature of 590°C, and keep it for 3 hours. The constant temperature environment is heated to the target temperature by a resistance furnace and kept warm. The stress difference inside and outside the body prevents cracks on the surface during the heating process and affects the quality of the output seal;

[0049] S3, heating, heating the preheated raw material section to 1200 ° C, and keeping it warm for 3 hours, the heating process is realized by raising the temperature of the resistance furnace to the target temperature;

[0050] S4, thickening, thickening the preheated raw material section by forging, then cooling naturally...

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Abstract

The invention relates to a forging process of a precise sealing element. The forging process comprises the following steps: S1, blanking, wherein raw materials are cut into raw material sections withthe diameter not less than that of the sealing element; S2, preheating, wherein the raw material sections are put into a constant temperature environment at 580-600 DEG C and kept for 3 h; S3, heating, wherein the preheated raw material sections are heated to 1100-1220 DEG C and kept for 3 h; S4, upsetting, wherein the preheated raw material sections are subjected to upsetting by forging, and naturally cooled to obtain a blank; S5, cutting; S6, punching; S7, forming a section, wherein the conical section is formed at the top end of a through hole of the plate blank in a surrounding manner to obtain a sealing element blank; S8, performing heat treatment, wherein the sealing element blank is heated to 700-750 DEG C and kept for 2-3 h, cooled to 300-320 DEG C and kept for 2-3 h, then heated to 670-690 DEG C and kept for 16-18 h, and finally discharged after natural cooling; and S9, grinding and polishing, wherein the outer side of the sealing element blank is ground and polished to obtainthe finished sealing element.

Description

technical field [0001] The invention belongs to the technical field of forging, and in particular relates to a forging process of a precision seal. Background technique [0002] Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. It is one of the two major components of forging (forging and stamping). Forging can eliminate defects such as as-cast porosity produced in the metal smelting process and optimize the microstructure. At the same time, due to the preservation of complete metal flow lines, the mechanical properties of forgings are generally better than castings of the same material. For important parts with high loads and severe working conditions in related machinery, forgings are mostly used, except for plates, profiles or weldments that can be rolled with simpler shapes. [0003] In the forging production and proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 盛洪亮
Owner 苏州市木冶机械锻造有限公司