Fast annealing method for thin-wall corrugated pipe

A technology of rapid annealing and bellows, which is applied in the direction of furnace types, furnaces, heat treatment furnaces, etc., can solve the problems of high energy consumption and inability to handle bellows, etc., and achieve the effect of improving annealing quality, increasing annealing operation speed, and fast speed

Active Publication Date: 2017-09-08
左铁军 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the technical problem that the existing colorless rapid annealing method cannot process bellows and consumes a lot of energy, and proposes a rapid annealing method for thin-walled copper bellows

Method used

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  • Fast annealing method for thin-wall corrugated pipe
  • Fast annealing method for thin-wall corrugated pipe

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Embodiment Construction

[0025] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "front", "rear" etc. are based on the The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating...

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Abstract

A fast annealing method for a thin-wall corrugated pipe comprises the steps of putting the thin-wall corrugated pipe into an annealing bin, performing electrifying and heating, performing protection through protective gas, performing outage cooling and performing taking-out. By the adoption of the annealing method, the heating and annealing can be completed fast, the speed of the annealing operation can be matched with the speed of the following machining processes, meanwhile the copper thin-wall corrugated pipe can be subjected to good annealing treatment, and the annealed thin-wall corrugated pipe not only has the enough strength, but also has certain flexibility; the annealing bin is open in work, the annealing treatment speed is high, taking and putting are convenient, the product to be treated is conveyed into the annealing bin from one end, and meanwhile the product obtained after the annealing treatment is completed can be taken out from the other end, so that the annealing operation can be performed in a streamlined manner, and the speed of the annealing operation is further increased; and the introducing time of the protective gas is shortened, the consumption of the gas is lowered, besides, the thin-wall corrugated pipe can be taken out from the annealing bin faster, the annealing operation speed is further increased, inert gas can be adopted as the protective gas, nitrogen can be adopted as the protective gas as well, and the cost of the annealing operation is lowered greatly.

Description

technical field [0001] The invention belongs to the technical field of metal heat treatment, and in particular relates to a method capable of rapidly annealing a thin-wall corrugated pipe. Background technique [0002] Annealing is a metal heat treatment process, which refers to slowly heating the metal to a certain temperature, keeping it for a sufficient time, and then cooling it at an appropriate speed. The purpose is to reduce hardness, improve machinability; eliminate residual stress, stabilize size, reduce deformation and crack tendency; refine grain, adjust structure, and eliminate structure defects. However, in the current annealing process, the surface of the metal will change color after annealing, which will affect the appearance of the metal, and it is difficult to meet the working conditions that require appearance. Moreover, the annealing furnace is mainly used for annealing at present. And put it in, anneal, and then take out the annealed metal. The annealing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/08C22F1/08C22F1/02
CPCC21D9/08C22F1/02C22F1/08
Inventor 左铁军杨训赵越孙德兴赵超
Owner 左铁军
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