公开(公告)号：US20150217329A1

公开(公告)日：2015-08-06

申请号：US14420368

申请日：2013-08-09

Applicant: NTN CORPORATION

Inventor： Takafumi Iwamoto ,  Kazuhiko Yoshida ,  Masato Chokyu ,  Shintaro Suzuki ,  Hiromi Hayashi

IPC: B05D3/02 ,  B05D7/14 ,  F16D3/20 ,  C21D1/18 ,  C21D9/00

CPC classification number: B05D3/0254 ,  B05D1/04 ,  B05D3/0281 ,  B05D7/14 ,  B05D2601/20 ,  B60B27/0036 ,  B60B35/14 ,  B60B2310/208 ,  B60B2310/54 ,  B60B2310/616 ,  B60B2900/141 ,  C21D1/18 ,  C21D9/0068 ,  C21D2261/00 ,  F16D3/20 ,  Y10T428/269 ,  Y10T428/294 ,  Y10T428/31529 ,  Y10T428/31678

Abstract: The invention provides a coating film having excellent adhesion, even without a chemical conversion film treatment being carried out as an undercoat treatment, and a metal automotive part having the coating film. A powder is deposited by powder-coating onto the surface of a metal automotive part that has been quenched after forging, and tempering of the metal automotive part and bake-hardening of the deposited powder are carried out simultaneously, thereby forming a skin film on the surface of the metal automotive part. The surface of the metal automotive part before the powder is powder-coated thereon is a work-hardened basis material surface that has been not subjected to a chemical conversion filming treatment.

Abstract translation: 本发明提供了即使没有进行作为底涂层处理的化学转化膜处理的具有优异粘附性的涂膜和具有该涂膜的金属汽车部件。 通过粉末涂覆将粉末涂覆在锻造后淬火的金属汽车部件的表面上，同时进行金属汽车部件的回火和沉积粉末的烘烤硬化，由此在其上形成皮肤膜 金属汽车零件表面。 在粉末涂覆粉末之前的金属汽车部件的表面是未进行化学转化成膜处理的加工硬化基材表面。

公开(公告)号：US12017249B2

公开(公告)日：2024-06-25

申请号：US18077162

申请日：2022-12-07

Applicant: NTN CORPORATION

Inventor： Takafumi Iwamoto ,  Kazuhiko Yoshida ,  Masato Chokyu ,  Shintaro Suzuki ,  Hiromi Hayashi

IPC: B05D3/02 ,  B05D1/04 ,  B05D1/06 ,  B05D7/14 ,  C21D1/42 ,  F16D3/20 ,  C21D1/18 ,  C21D9/00

CPC classification number: B05D3/0254 ,  B05D1/04 ,  B05D1/06 ,  B05D3/0281 ,  B05D7/14 ,  C21D1/42 ,  F16D3/20 ,  B05D2401/32 ,  B05D2601/20 ,  B60B2310/208 ,  B60B2310/54 ,  B60B2310/616 ,  B60B2900/141 ,  C21D1/18 ,  C21D9/0068 ,  C21D2261/00 ,  Y10T428/269 ,  Y10T428/294 ,  Y10T428/31529 ,  Y10T428/31678

Abstract: A coating film having excellent adhesion, even without the presence of a chemical conversion film treatment as an undercoat, and a metal automotive part having the coating film. A powder is deposited by powder-coating onto the surface of a metal automotive part that has been quenched after simultaneously forging, and tempering the metal automotive part and bake-hardening the deposited powder to form a skin film on the surface of the metal automotive part. The surface of the metal automotive part before the powder is powder-coated thereon is a work-hardened material surface that has not been subjected to a chemical conversion filming treatment.