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Production method of stainless steel motor shaft

A production method, stainless steel technology, applied in the production field of stainless steel motor shafts, can solve the problems of no obvious outstanding performance, high production cost, low yield, etc., and achieve the effects of uniform internal and external hardness, improved quality, and uniform density

Inactive Publication Date: 2011-10-05
胡锦耀
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  • Abstract
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  • Claims
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Problems solved by technology

Compared with martensitic stainless steel 410, 420, 430, and 420J2, the martensitic stainless steel 431 produced by the continuous casting and rolling process of martensitic steel in China has no obvious outstanding performance, only slightly outstanding corrosion resistance. It is better than 420 and 420J2 in the salt spray test, but due to the high production cost, large loss and low yield of 431, its price is much higher than 410, 420, 430, 420J2

Method used

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  • Production method of stainless steel motor shaft

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Embodiment Construction

[0023] In order to facilitate a further understanding of the present invention, the present invention will now be described in detail in conjunction with specific embodiments.

[0024] According to the requirements of the finished motor shaft, different grades of stainless steel and iron materials are mixed into the electric furnace, and the following methods are used for processing:

[0025] ① Stainless steel smelting: adopt conventional electric furnace rough smelting + AOD furnace refining method;

[0026] ②Heat the steel cup to 1600-1700℃, carry out rapid cooling and solid solution treatment, and store it in the warehouse for 90-150 days; after the completion, heat the steel cup to 1350-1400℃ again, and let the steel cup cool naturally;

[0027] ③ Secondary refining of high-frequency machine: put the steel cup upside down on the fixture at the port of the high-frequency machine, clamp the mouth of the cup, raise the steel cup, place a steel mold below, turn on the power, t...

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Abstract

The invention discloses a production method of a stainless steel motor shaft, comprising the following steps of: smelting stainless steel; carrying out secondary refining on a high-frequency machine; carrying out surface treatment; carrying out hot rolling on a disc; carrying out annealing treatment; carrying out cold machining and wire-drawing treatment; and machining a finished product, and the like. The stainless steel motor shaft produced by adopting the method disclosed by the invention has good abrasion-resistant and corrosion-resistant property and can be safely used for the mechanical equipment of foods, medicines, and the like without separating harmful substances, i.e. lead, mercury, chromium, nickel, cadmium, and the like, in the using process.

Description

technical field [0001] The invention relates to a production method of a motor shaft, in particular to a production method of a stainless steel motor shaft. Background technique [0002] Stainless steel 431 has good toughness and corrosion resistance, so it is generally used in piston rods, pumps, shafts, blades of food machinery, etc. that have special requirements for toughness and corrosion resistance in food, medical, chemical, and textile processing. Compared with martensitic stainless steel 410, 420, 430, and 420J2, the martensitic stainless steel 431 produced by the continuous casting and rolling process of martensitic steel in China has no obvious outstanding performance, only slightly outstanding corrosion resistance. In the salt spray test, it is better than 420 and 420J2, but due to the high production cost, large loss and low yield of 431, its price is much higher than 410, 420, 430, 420J2. Although imported stainless steel 431 has better performance, it is more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04B23P15/00C21D1/26C21D8/06C21C7/068
Inventor 胡锦耀
Owner 胡锦耀
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