Method for continuously contact-coating one side only of a ferrous base
metal strip with a molten coating metal
    2.
    发明授权
    Method for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal 失效
    用于连续涂覆一层仅含有金属涂层金属的基底金属条带的方法

    公开(公告)号:US4082868A

    公开(公告)日:1978-04-04

    申请号:US668241

    申请日:1976-03-18

    CPC分类号: C23C2/006 B05C9/02 Y10S118/02

    摘要: Method and means for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal. One or more roll means are provided to conduct the strip surface to be coated above the surface of a bath of the molten coating metal. The strip surface to be coated is caused to travel sufficiently close to the molten coating metal bath surface that the surface tension and wetting characteristics of the coating metal will permit the formation of a meniscus which will continuously contact and coat the strip surface. The coating is subjected to jet finishing. The strip is maintained in a protective non-oxidizing atmosphere at least until the one side thereof is coated. The strip may be maintained in the protective non-oxidizing atmosphere until it is sufficiently cooled to prevent the formation of a visible oxide on the uncoated side thereof. When the strip is exposed to an oxidizing atmosphere after coating and while still sufficiently hot to form a visible oxide coating on the uncoated side thereof, the strip will thereafter be subjected to acid cleaning, rinsing and drying operations.

    摘要翻译: 用熔融涂覆金属连续接触仅涂覆铁基金属条的一侧的方法和装置。 提供一个或多个辊装置以将待涂覆的带材表面导引到熔融涂覆金属的浴表面上方。 待涂覆的带材表面被引导到熔融涂覆金属浴表面足够接近,涂层金属的表面张力和润湿特性将允许形成将连续接触和涂覆条带表面的弯液面。 涂层经受喷射整理。 将带材保持在保护性非氧化性气氛中,至少直到其一面被涂覆。 该条可以保持在保护性非氧化性气氛中,直到其被充分冷却以防止在其未涂覆侧面上形成可见的氧化物。 当条带在涂覆之后暴露于氧化气氛下,同时仍然足够热以在其未涂覆的一面上形成可见的氧化物涂层,然后将该条进行酸洗,漂洗和干燥操作。

    Method for continuously contact-coating one side only of a ferrous base
metal strip with a molten coating metal
    3.
    发明授权
    Method for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal 失效
    用熔融涂层金属连续接触仅涂覆铁基金属带的一面的方法

    公开(公告)号:US4152471A

    公开(公告)日:1979-05-01

    申请号:US834522

    申请日:1977-09-19

    CPC分类号: C23C2/006 B05C9/02 Y10S118/02

    摘要: Method and means for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal. One or more roll means are provided to conduct the strip surface to be coated above the surface of a bath of the molten coating metal. The strip surface to be coated is caused to travel sufficiently close to the molten coating metal bath surface that the surface tension and wetting characteristics of the coating metal will permit the formation of a meniscus which will continuously contact and coat the strip surface. The coating is subjected to jet finishing. The strip is maintained in a protective non-oxidizing atmosphere at least until the one side thereof is coated. Alternatively, at least that side of the strip to be coated with the molten coating metal is coated with a flux which remains on the strip until contacted by the coating metal meniscus. The strip may be maintained in the protective non-oxidizing atmosphere until it is sufficiently cooled to prevent the formation of a visible oxide on the uncoated side thereof. When the strip is exposed to an oxidizing atmosphere after coating and while still sufficiently hot to form a visible oxide coating on the uncoated side thereof, the strip will thereafter be subjected to acid cleaning, rinsing and drying operations.

    摘要翻译: 用熔融涂覆金属连续接触仅涂覆铁基金属条的一侧的方法和装置。 提供一个或多个辊装置以将待涂覆的带材表面导引到熔融涂覆金属的浴表面上方。 待涂覆的带材表面被引导到熔融涂覆金属浴表面足够接近,涂层金属的表面张力和润湿特性将允许形成将连续接触和涂覆条带表面的弯液面。 涂层经受喷射整理。 将带材保持在保护性非氧化性气氛中,至少直到其一面被涂覆。 或者,待涂覆熔融涂覆金属的条带的至少一侧涂覆有保留在条上的焊剂,直到被涂覆金属弯液面接触。 该条可以保持在保护性非氧化性气氛中,直到其被充分冷却以防止在其未涂覆侧面上形成可见的氧化物。 当条带在涂覆之后暴露于氧化气氛下,同时仍然足够热以在其未涂覆的一面上形成可见的氧化物涂层,然后将该条进行酸洗,漂洗和干燥操作。