Meter-class aluminum alloy forging ring quenching method

An aluminum alloy and ring forging technology is applied in the field of heat treatment of metal materials, which can solve the problems of reducing the dimensional accuracy of meter-grade aluminum alloy forging rings, achieve uniform cooling, improve dimensional accuracy, and reduce large deformation.

Active Publication Date: 2010-05-05
SOUTHWEST ALUMINUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of vertical solid solution and water immersion vertical quenching, due to the influence of the self-weight of the forging ring and the asynchronous cooling, the meter-level aluminum alloy forging ring is deformed in the radial and axial directions to form a large ellipse and warpage. Greatly reduces the dimensional accuracy of meter-level aluminum alloy forging rings

Method used

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  • Meter-class aluminum alloy forging ring quenching method
  • Meter-class aluminum alloy forging ring quenching method
  • Meter-class aluminum alloy forging ring quenching method

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Embodiment approach

[0029] An embodiment of the method for quenching a meter-level aluminum alloy ring forging provided by the present invention includes:

[0030] Keep the horizontally placed meter-level aluminum alloy forging ring in the quenching furnace;

[0031] After heat preservation, use a quenching medium to simultaneously spray and quench the inner ring surface, the outer ring surface, the upper surface and the lower surface connecting the inner ring surface and the outer ring surface of the meter-grade aluminum alloy forged ring.

[0032] According to the present invention, the aluminum alloy is not particularly limited, and specific examples may be 6061 aluminum alloy forged ring and 7075 aluminum alloy forged ring, but not limited thereto. The meter-level aluminum alloy forged ring in the present invention refers to an aluminum alloy forged ring with a diameter of more than 1 meter, preferably a meter-level aluminum alloy forged ring with a diameter of more than 2 meters.

[0033] A...

Embodiment 1

[0040] Place the 6061 three-meter aluminum alloy forging ring horizontally on the forging ring support frame.

[0041] Hang the forging ring support frame with the horizontal three-meter-level aluminum alloy forging ring horizontally on the roller table of the roller hearth furnace, turn on the switch of the roller table, and the forging ring enters the roller hearth furnace along with the forging ring support frame of the roller hearth furnace to keep warm. to 495°C, and the holding time was 2 hours.

[0042] After heat preservation, turn on the spraying device, and spray water on the inner ring surface, outer ring surface, and the upper surface and lower surface connecting the inner ring surface and the outer ring surface of the three-meter aluminum alloy forging ring to complete the horizontal spray cooling at the same time Quenching.

[0043] The spraying time is 10 minutes, the furnace door is opened, the forged ring is released from the furnace through the roller table,...

Embodiment 2

[0045] Place the 7075 two-meter-grade aluminum alloy forging ring horizontally on the forging ring support frame.

[0046] Hang the forging ring support frame with the horizontal 2-meter-level aluminum alloy forging ring on the roller table of the roller hearth furnace horizontally, turn on the switch of the roller table, and the forging ring enters the roller hearth furnace along with the forging ring support frame of the roller hearth furnace to keep warm. 500°C, and the holding time is 3 hours.

[0047] After heat preservation, turn on the spraying device, and spray water on the inner ring surface, outer ring surface, and the upper surface and lower surface connecting the inner ring surface and the outer ring surface of the meter-level aluminum alloy forging ring to complete the quenching. .

[0048] The spraying time is 12 minutes, the furnace door is opened, the forging ring is released from the furnace through the roller table, and the quenching process is completed. Af...

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Abstract

The embodiment of the invention discloses a meter-class aluminum alloy forging ring quenching method, comprising the following steps: preserving heat of a meter-class aluminum alloy forging ring which is arranged horizontally in a quenching furnace, and simultaneously spraying and cooling the surface of the incircle of the meter-class aluminum alloy forging ring, the surface of the excircle of the meter-class aluminum alloy forging ring and the upper surface and the lower surface which are connected with the surface of the incircle of the meter-class aluminum alloy forging ring and the surface of the excircle of the meter-class aluminum alloy forging ring with quenching medium. The meter-class aluminum alloy forging ring is horizontally quenched with solid solution and is quenched by simultaneous spraying in the quenching furnace. When the meter-class aluminum alloy forging ring is horizontally quenched with the solid solution, the meter-class aluminum alloy forging ring can not deform too much in the radial direction into the shape of the ellipse due to dead weight. When the meter-class aluminum alloy forging ring is quenched by simultaneous spraying, all the parts of the meter-class aluminum alloy forging ring can contact the quenching medium at the same time without time difference, and all the parts of the meter-class aluminum alloy forging ring can be cooled simultaneously and uniformly, thus the meter-class aluminum alloy forging ring can be quenched without deforming too much in the radial direction and the axial direction due to nonuniform quenching internal stress, and the dimension precision of the meter-class aluminum alloy forging ring can be improved.

Description

technical field [0001] The invention relates to the field of heat treatment of metal materials, in particular to a method for quenching a meter-level aluminum alloy forging ring. Background technique [0002] In the production of metal materials, in order to improve the subsequent processing performance of the product and the use performance of the final product, and increase its hardness, toughness, wear resistance, stability, etc., the product is heat treated during the production process. The meter-level aluminum alloy forged ring has many uses, for example, it can be used as a key connecting piece of a launch vehicle, and it is of great significance to improve the performance of the meter-level aluminum alloy forged ring. The meter-level aluminum alloy forged ring in the present invention refers to an aluminum alloy forged ring with a diameter of more than 1 meter. [0003] In the prior art, when the rice-grade aluminum alloy forging ring is subjected to quenching heat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04C21D1/18C21D9/40C21D1/667
Inventor 曾庆华方清万陈丽芳张东阙基容游江海
Owner SOUTHWEST ALUMINUM GRP
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