Title:
ULTRA-LIGHTWEIGHT STEEL WHEEL FOR COMMERCIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/258008
Kind Code:
A1
Abstract:
The present application relates to an ultra-lightweight steel wheel (1) for a commercial vehicle. The steel wheel has excellent material properties and advanced design. The wheel consists of a rim (2) for mounting a tire and spokes (3) having a hub flange (5) for detachably connecting to a wheel hub or axle. The rim (2) and/or the spokes (3) are made of a steel material having a carbon content between 0.18 wt% and 0.37 wt%, and which has been heat treated and hardened. The spokes (3) and/or the rim (2) primarily are primarily formed from a martensite microstructure and have a tensile strength of at least 900 MPa. A maximum thickness (T3) of the rim (2) is less than 4.50 mm, and/or a maximum thickness (T1) of the spokes (3) is less than 12.00 mm. A wheel diameter (D) multiplied by a wheel width (W), then divided by a wheel mass, is greater than 4000mm2/kg.
Inventors:
PIERONEK DAVID (CN)
TIAN WEI (CN)
TIAN WEI (CN)
Application Number:
PCT/CN2022/097843
Publication Date:
December 15, 2022
Filing Date:
June 09, 2022
Export Citation:
Assignee:
THYSSENKRUPP STEEL BEIJING CO LTD (CN)
International Classes:
B60B3/04; B21D53/30; B60B21/02; C21D9/34
Domestic Patent References:
| WO2015159231A1 | 2015-10-22 | |||
| WO2018051282A1 | 2018-03-22 |
Foreign References:
| CN113173034A | 2021-07-27 | |||
| CN215904242U | 2022-02-25 | |||
| DE102020204310B3 | 2021-04-01 | |||
| CN108698437A | 2018-10-23 | |||
| EP1241023A2 | 2002-09-18 | |||
| JP2006232219A | 2006-09-07 | |||
| CN103909381B | 2017-05-10 | |||
| EP3115767B1 | 2020-06-24 |
Attorney, Agent or Firm:
TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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