公开(公告)号：US20150284835A1

公开(公告)日：2015-10-08

申请号：US14681430

申请日：2015-04-08

Applicant: GM Global Technology Operations LLC

Inventor： Yanfeng Ge ,  Bailing Jiang ,  Ming Liu

IPC: C23C8/36 ,  C23C8/04 ,  C25D13/06 ,  C23C28/00 ,  B60B3/10 ,  C25D13/12 ,  B05D1/06 ,  C23C8/80

CPC classification number: C25D11/20 ,  B05D1/06 ,  B05D7/16 ,  B05D7/57 ,  B05D2202/20 ,  B05D2202/25 ,  B05D2350/63 ,  B60B3/10 ,  B60B2310/60 ,  B60B2310/618 ,  B60B2310/654 ,  B60B2310/661 ,  B60B2360/106 ,  B60B2360/324 ,  B60B2900/141 ,  C25D11/026 ,  C25D11/26 ,  C25D11/30 ,  C25D13/22 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/24997 ,  Y10T428/31515

Abstract: A light metal workpiece with enhanced surface protection. The workpiece comprises a metal or alloy matrix having an exposed surface. A corrosion resistant oxide layer is formed in at least a portion of the exposed surface using a micro-arc oxidation technique. A first coating is applied onto at least a portion of the oxide layer using an electro-coating technique and is configured to seal the oxide layer. A second coating is applied onto at least a portion of the first coating, the second coating comprising a powder coating material. An appearance coating may optionally be applied onto at least a portion of the second coating, wherein the appearance coating includes at least one of a base coat, a color coat, and a clear coat.

Abstract translation: 具有增强表面保护功能的轻金属工件。 工件包括具有暴露表面的金属或合金基体。 使用微弧氧化技术在暴露表面的至少一部分中形成耐蚀氧化层。 使用电涂覆技术将第一涂层施加到氧化物层的至少一部分上，并且被配置为密封氧化物层。 将第二涂层施加到第一涂层的至少一部分上，第二涂层包含粉末涂料。 可以任选地将外观涂层施加到第二涂层的至少一部分上，其中外观涂层包括底涂层，彩色涂层和透明涂层中的至少一种。