Big-aspect-ratio thin-wall metal container workblank manufacturing process

A metal container with a large aspect ratio technology, applied in metal processing equipment, manufacturing tools, forming tools, etc., can solve the problems of poor adhesion, instant burning, large deformation, etc., to reduce production costs, reduce investment, Small deformation effect

Inactive Publication Date: 2018-03-23
河南江河机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process has the following problems: (1) Due to the high heating temperature and large degree of deformation (up to 80%) during the preparation of the product blank, there are high requirements for the ignition point and adhesion of the lubricating oil. Generally, the common lubricating oil Low ignition point and poor adhesion, it will burn immediately after being applied to the mold, unable to complete the lubrication task
Water-based graphite emulsion is a kind of graphite emulsified colloid, which can be used for metal hot-press demolding after being diluted with water. Trials were unsuccessful

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A manufacturing process of a large aspect ratio thin-walled metal container blank, the process includes the following steps:

[0031] (1) Prepare a copper alloy ingot with a diameter of 150~250mm and a thickness of 80~100mm. The composition of the copper alloy ingot is as follows: Cu 60~62.5%, Fe 0.3~0.6%, and the balance is Zn (using conventional methods Prepared copper alloy ingot);

[0032] (2) Use an intermediate frequency heating furnace to heat the ingot prepared in step (1) at a heating temperature of 850±10℃, and stop heating when the temperature in the furnace and the ingot are both 850±10℃, and After being kept at this temperature for 15-20 minutes, it enters the press for hot cake processing; the heated copper alloy ingot enters the press, and is pressed to a thickness of 25 under the condition of a pressure of 6±0.5MPa ~30mm is enough;

[0033] (3) Apply water-based graphite emulsion with a mass concentration of 20% on the mold of the thermal extension device (ev...

Embodiment 2

[0037] A manufacturing process of a large aspect ratio high pressure resistant thin-walled metal container blank, the process comprising the following steps:

[0038] (1) Prepare a low carbon steel ingot with a diameter of 150~250mm and a thickness of 80~100mm. The composition of the low carbon steel ingot is as follows: C 0.16~0.22%, Si 0.17~0.37%, Mn 0.35~0.65%, The balance is Fe;

[0039] (2) Use an intermediate frequency heating furnace to heat the ingot prepared in step (1), the heating temperature is 1250±10℃, and the temperature in the intermediate frequency furnace and the ingot are both 125±10℃, and at this temperature After 15-20 minutes of heat preservation, enter the press for hot cake processing; after the heated low-carbon steel ingot enters the press, it is pressed to a thickness of 25-30mm under the condition of a pressure of 7±0.5MPa Can

[0040] (3) Apply water-based graphite emulsion with a mass concentration of 30% on the mold of the thermal extension device (ev...

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PUM

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Abstract

The invention provides a big aspect ratio thin-wall metal container workblank manufacturing process. At first, a required ingot is prepared, then the prepared ingot is heated through a mid-frequency heating furnace, and the ingot is sent to a press to be subjected to thermal cake manufacturing after being heated. After thermal cake manufacturing, the ingot is sent to a heat drawing device, coatedwith water-based graphite cream, on a mould to be subjected to heat drawing, and the degree of heat-drawing deformation after treatment is 40-50%. One-step inverted extrusion forming is divided to twosteps of thermal cake manufacturing and heat drawing, the deformation amount of heat drawing is reduced, and the water-based graphite cream is used successfully as a lubricant to achieve the functionof simple lubricating. The environment is not polluted, the operation is simple, the application prospect is wide and the socioeconomic performance is better.

Description

Technical field [0001] The invention belongs to the technical field of metal container blank manufacturing, in particular to a manufacturing process of a large aspect ratio thin-walled metal container blank, and a large aspect ratio high-pressure resistant thin-walled metal container blank manufacturing process. Background technique [0002] Large aspect ratio, high pressure and thin-walled metal containers have a wide range of applications in domestic radar station radio wave launch anodes and salute shells. The outstanding features of this type of products are thin wall, high strength, harsh environment, and high performance requirements. For example, in the task of transmitting electromagnetic waves in radar stations, the products are required to withstand high vacuum and negative pressure at a high temperature of several hundred degrees. Cracking: When used for military shooting, the product must bear the impact load of high temperature and high pressure gas, and there must b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/18B21D37/16B21D51/18B21D31/00B21D22/20
CPCB21D22/201B21D22/208B21D31/00B21D37/16B21D37/18B21D51/18
Inventor 张琦高大伟苗富贵王丹冰杨利刘玉卿杨科军郭玲玲崔督林孙琳琳
Owner 河南江河机械有限责任公司
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