Forging die material used for forging lock shell

A forging die and lock case technology, applied in the field of hot forging, can solve the problems of unable to release the film normally, easy to bend and deform, etc., and achieve the effects of good cold and heat fatigue resistance, smooth forging, high strength and hardness

Inactive Publication Date: 2019-03-19
JIANGSU LEAP MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a forging die material for forging lock casings, which solves the problem that the existing lock casing forging die materials are easily bent and deformed during final forging, resulting in the inability to release the film normally

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A forging die material for forging lock casings, produced by conventional smelting methods, and its main components are calculated by weight percentage:

[0037] Including carbon 0.28, silicon 0.30, manganese 0.25, chromium 2.50, tungsten 8.50, titanium 0.90, cobalt 0.70, phosphorus 0.06, nickel 0.30, composite silica powder 1.50, and the rest are iron and impurities caused by preparation.

[0038] The produced forging die material was made into a lock case mold and used for lock case forging tests. After many tests, there were no problems in the blank making, pre-forging, and final forging of the lock case forging, and the forging could be successfully removed. .

Embodiment 2

[0040] A forging die material for forging a lock case, the only difference from Example 1 is that the mass content of the formula components is slightly different.

[0041] In weight percent, the forging die material includes 0.25 carbon, 0.20 silicon, 0.15 manganese, 2.20 chromium, 8.00 tungsten, 0.95 titanium, 0.80 cobalt, 0.08 phosphorus, 0.40 nickel, 1.80 composite silica powder, and the rest are iron and prepared caused impurities.

[0042] The produced forging die material was made into a lock case mold and used for lock case forging tests. After many tests, there were no problems in the blank making, pre-forging, and final forging of the lock case forging, and the forging could be successfully removed. .

Embodiment 3

[0044] A forging die material for forging a lock case, the only difference from Example 1 is that the mass content of the formula components is slightly different.

[0045] In weight percent, the forging die material includes carbon 0.30, silicon 0.35, manganese 0.35, chromium 2.70, tungsten 9.00, titanium 0.8, cobalt 0.60, phosphorus 0.05, nickel 0.20, composite silicon oxide micropowder 1.20, and the rest are iron and prepared caused impurities.

[0046] The produced forging die material was made into a lock case mold and used for lock case forging tests. After many tests, there were no problems in the blank making, pre-forging, and final forging of the lock case forging, and the forging could be successfully removed. .

[0047] The material in this embodiment has been processed and tested in practice, and has high strength and hardness, good resistance to cold and heat fatigue, and good hardenability, but its toughness and plasticity are poor, and its material characterist...

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PUM

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Abstract

The invention discloses a forging die material used for forging a lock shell. A conventional smelting method is adopted for production. The forging die material comprises, by mass percent, 0.20-0.35 of carbon, 0.10-0.40 of silicon, 0.10-0.40 of manganese, 2.00-3.00 of chromium, 7.00-10.00 of tungsten, 0.80-1.00 of titanium, 0.50-1.00 of cobalt, 0.03-0.10 of phosphor, smaller than or equal to 0.01of sulfur, 0.10-0.50 of nickel, 1.00-2.00 of composite oxide silicon micro powder, and the balance iron and impurities caused by preparation. The forging die material has high strength and hardness, good cold and hot fatigue resisting performance and good hardenability, however, the toughness and plasticity of the forging die material are poor, the material characteristics of the forging die material effectively solve the problem that an existing lock shell forging die material bends and deforms easily during finish forging, forging is smoother, and the service life is also prolonged.

Description

technical field [0001] The invention relates to the application field of hot forging, in particular to a forging die material for forging a lock case. Background technique [0002] The lock case matched with the lock bolt is usually a casting, and later changed to a forging due to customer demand, but many problems were encountered in the forging process of the forging, because the wall thickness of the forging is only 5-6mm, and the two corners are deep , forging is difficult. [0003] Later research found that the main reason for the difficulty in forging lies in the inapplicability of the forging die material. The traditional forging die material H3 was originally used, but this material has poor hardness, good toughness and plasticity. It's okay, but when it comes to the final forging station, its two corners tend to be bent and deformed, which makes the product unable to be released normally. Contents of the invention [0004] The purpose of the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/08C22C38/10C22C38/12C22C38/14C22C38/18C22C38/22C22C38/28C22C38/30C22C38/40
CPCC22C38/02C22C38/04C22C38/105C22C38/12C22C38/14C22C38/18C22C38/22C22C38/28C22C38/30C22C38/40
Inventor 蒋波何天成
Owner JIANGSU LEAP MACHINE
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