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Hexagonal steel forging process

A hexagonal steel, forging technology, applied in the field of metal forging, can solve the problems of multiple hot forging processes, decarburization and burning, surface roughness, etc., and achieve the effect of simple and feasible process, improved precision and good surface quality

Inactive Publication Date: 2017-06-09
周子童
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many hot forging processes, the precision of the workpiece is poor, the surface is not smooth, and the forging is prone to oxidation, decarburization and burning.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The invention provides a hexagonal steel forging process, the hexagonal steel forging process comprises the following steps:

[0025] 1) prepare a hexagonal steel heating curve, the abscissa of the hexagonal steel heating curve is the heating time, and the ordinate is the heating temperature:

[0026] 1.1) Select different steel grades and obtain their own heating characteristics;

[0027] 1.2) According to the heating characteristics of different steel grades obtained in step 1.1), the furnace inlet temperature, initial forging temperature and furnace discharge temperature of different steel grades are determined;

[0028] 1.3) Determine the heating time of different steel types during forging;

[0029] 1.4) Draw the heating curves of different steel types with the abscissa as the heating time and the ordinate as the heating temperature.

[0030] 2) Heat the hexagonal steel according to the heating curve of the hexagonal steel obtained in step 1):

[0031] 2.1) The ...

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PUM

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Abstract

The invention relates to a hexagonal steel forging process. The hexagonal steel forging process comprises the following steps: 1) preparing a heating curve for the hexagonal steel. The abscissa of the heating curve for the hexagonal steel is the heating time, and the ordinate is the heating temperature; 2) According to the heating curve diagram of the hexagonal steel obtained in step 1), the hexagonal steel is subjected to heat treatment; 3) the heated hexagonal steel is subjected to pier thickening and elongation treatment. The invention provides a hexagonal steel forging process with high process precision, good surface quality and simple and reliable casting process.

Description

technical field [0001] The invention belongs to the field of metal forging, and relates to a hexagonal steel forging process. Background technique [0002] During the forging process, forging can compact or weld defects such as shrinkage cavities, shrinkage porosity, voids, bubbles and cracks in the as-cast metal structure, and can also refine grains and break inclusions, so as to obtain a certain forging flow. line tissue. In actual production, various forgings are often used according to production needs, such as mainly used to produce various important machine parts or [0003] Blanks, such as spindles and gears of machine tools, connecting rods of internal combustion engines, and hooks of cranes, etc., need to be deformed by upsetting, elongating, reaming, bending, and deep drawing. Oxidation of the surface and cooling shrinkage and other reasons, the precision of the forging is not high, the surface quality is not good, and the restriction of the forging structure and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J1/06B21J5/06B21J5/08
CPCB21J1/06B21J5/06B21J5/08
Inventor 周子童
Owner 周子童