Forging for wind power gear ring and forging method thereof

A technology for ring gears and forgings, which is applied in the field of forgings and forgings for wind power ring gears. shocking effect

Inactive Publication Date: 2021-01-05
JIANGYIN FANGYUAN RINGLIKE FORGING & FLANGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is a problem that it cannot meet the high-strength mechanical properties and hardness requirements of the core of the ring gear, and after the chemical composition of the material is increased, cracking occurs due to high hardenability

Method used

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Examples

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Embodiment Construction

[0010] The present invention will be further described below in combination with specific embodiments.

[0011] The invention discloses a forging for a wind power ring gear. The components include: C: 0.47-0.52%, Si: 0.20-0.40%, Mn: 0.75-0.90%, P: ≤0.020%, S: ≤ 0.015%, Cr: 1.05-1.20%, Mo: 0.20-0.30%, Al: 0.015-0.04%, Ni: 0.30-0.42%, Cu: 0.05-0.1%, W: 0.1-0.2%; the content of Ti is not more than The content of V is not more than 0.01%, the content of V is not more than 0.05%, and the rest is Fe and unavoidable impurities. The unavoidable impurities are: the content of H is not more than 2.0PPm, the content of Ca is not more than 20PPm, and the content of O is not more than 20PPm.

[0012] Compared with the composition disclosed in CN201711130359.0 in the prior art, it includes: C: 0.41-0.45%, Si: 0.20-0.40%, Mn: 0.75-0.90%, P: ≤0.020%, S: ≤0.015%, Cr: 1.05 -1.20%, Mo: 0.20-0.30%, Al: 0.015-0.04%, Ni: 0.15-0.30%, Cu: ≤0.30%, the content of Ti is not more than 0.01%, the content...

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PUM

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Abstract

The invention provides a forging for a wind power gear ring and a forging method thereof. The forging for the wind power gear ring comprises the following components in percentage by weight: 0.47%-0.52% of C, 0.20%-0.40% of Si, 0.75%-0.90% of Mn, less than or equal to 0.020% of P, less than or equal to 0.015% of S, 1.05%-1.20% of Cr, 0.20%-0.30% of Mo, 0.015%-0.04% of Al, 0.30%-0.42% of Ni, 0.05%-0.1% of Cu, and 0.1%-0.2% of W; the content of Ti is not more than 0.01%, the content of V is not more than 0.05%, and the rest is Fe and inevitable impurities; wherein the inevitable impurities are as follows: the content of H is not more than 2.0 PPm, the content of Ca is not more than 20 PPm, and the content of O is not more than 20 PPm.

Description

technical field [0001] The invention relates to a forging for a wind power ring gear and a forging method thereof. Background technique [0002] Forgings for wind power ring gears and their forging methods in the prior art, as disclosed in CN201711130359.0, the components include: C: 0.41-0.45%, Si: 0.20-0.40%, Mn: 0.75-0.90%, P: ≤0.020 %, S: ≤0.015%, Cr: 1.05-1.20%, Mo: 0.20-0.30%, Al: 0.015-0.04%, Ni: 0.15-0.30%, Cu: ≤0.30%, Ti content is not more than 0.01%, The content of V is not more than 0.05%, and the rest is Fe and unavoidable impurities. The unavoidable impurities are: the content of H is not more than 2.0PPm, the content of Ca is not more than 20PPm, and the content of O is not more than 20PPm. [0003] There is a problem that it cannot meet the high-strength mechanical properties and hardness requirements of the ring gear core, and after the chemical composition of the material is increased, cracking occurs due to high hardenability. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/44C22C38/42C22C38/46C22C38/50B21J5/00C21D1/28C21D1/18C21D1/10C21D9/40
CPCB21J5/002C21D1/10C21D1/18C21D1/28C21D9/40C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44C22C38/46C22C38/50Y02P10/25
Inventor 赵清赵元俊赵春良
Owner JIANGYIN FANGYUAN RINGLIKE FORGING & FLANGE
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