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。

    Low tin terne coated steel article
    5.
    发明授权
    Low tin terne coated steel article 失效
    低锡钛镀层钢制品

    公开(公告)号:US4315056A

    公开(公告)日:1982-02-09

    申请号:US118073

    申请日:1980-02-04

    摘要: The application discloses a method of terne coating, and a terne coated product, wherein the tin content of the terne is substantially lower than in conventional terne, without the need for other alloying elements in substitution for tin, such as zinc, antimony, silver, and phosphorus. The tin content of the terne bath is lowered below conventional percentages, to between about 2% and about 6.5% and the terne coated product, upon emerging from the coating bath, is jet finished. Such a terne coat has improved solderability and appearance with no change in pinhole frequency. Coating weight control is easier than with a terne coat having 7% or more tin in the bath.

    摘要翻译: 本申请公开了一种泰尔涂层方法和泰尔涂层产品,其中燕麦的锡含量基本上低于常规燕麦,而不需要其它合金元素代替锡,例如锌,锑,银, 和磷。 泰诺浴的锡含量低于常规百分比,降至约2%至约6.5%之间,而从涂层浴出来时,泰恩涂层产品喷射完成。 这种Terne涂层具有改善的可焊性和外观,针孔频率没有变化。 涂层重量控制比在浴中具有7%或更多锡的Terne涂层更容易。

    Method of treating steel strip and sheet surfaces, in sulfur-bearing
atmosphere, for metallic coating
    6.
    发明授权
    Method of treating steel strip and sheet surfaces, in sulfur-bearing atmosphere, for metallic coating 失效
    在含硫气氛中处理钢带和片材表面的金属涂层方法

    公开(公告)号:US4123291A

    公开(公告)日:1978-10-31

    申请号:US753622

    申请日:1976-12-23

    IPC分类号: C23C2/38 C23C11/08

    CPC分类号: C23C2/38

    摘要: A method of preparing the surfaces of steel strip and sheet stock for fluxless hot dip coating with molten metal by passing the stock through a first heating zone containing the hot gaseous products of combustion of a sulfur-bearing gaseous fuel with air, continuing the heating in a further heating zone, and cooling the stock approximately to the temperature of the molten coating metal in a reducing atmosphere. The radiant energy absorptivity of the stock is increased by forming a visible sulfur and oxygen rich layer thereon in the first heating zone and preserving the layer throughout the further heating zone. Coke oven gas may be used as fuel in the first heating zone.

    摘要翻译: 通过使原料通过含有含硫气体燃料的热气态产物与空气的第一加热区,制备用于无熔剂热熔浸渍的钢带和片材的表面的方法,该方法继续加热 进一步加热区,并且在还原气氛中将原料冷却至熔融涂覆金属的温度。 通过在第一加热区中在其上形成可见的硫和富氧层并在整个另外的加热区中保留层来增加原料的辐射能量吸收性。 焦炉煤气可以用作第一加热区的燃料。

    Finishing method for conventional hot dip coating of a ferrous base
metal strip with a molten coating metal
    7.
    发明授权
    Finishing method for conventional hot dip coating of a ferrous base metal strip with a molten coating metal 失效
    用熔融涂层金属对铁基金属带进行常规热浸镀处理的方法

    公开(公告)号:US4330574A

    公开(公告)日:1982-05-18

    申请号:US191857

    申请日:1980-09-29

    IPC分类号: C23C2/20 C23C2/40 B05D3/02

    CPC分类号: C23C2/20 C23C2/40

    摘要: A finishing method and apparatus for conventional continuous hot-dip coating of the type wherein a ferrous base metal strip is caused to pass beneath the surface of a coating bath of molten coating metal and is thereafter subjected to jet finishing, the ferrous base metal strip having been appropriately pretreated so as to be at the proper coating temperature and so as to have its surfaces oxide-free when passing through the bath of molten coating metal. The method comprises the steps of providing an enclosure for the two-side coated strip as it exits the coating bath, locating a finishing jet nozzle to either side of the coated strip within the enclosure, jet finishing the coated strip with a non-oxidizing or inert gas. The apparatus comprises the above mentioned enclosure with the jet finishing nozzles located therein and an appropriate system to provide a non-oxidizing or inert atmosphere within the enclosure.

    摘要翻译: 一种用于常规连续热浸涂层的精整方法和装置,其中使铁基金属带通过熔融涂覆金属涂层的表面之下,然后进行喷射精加工,所述铁基金属带具有 经过适当的预处理,使其处于适当的涂覆温度,并使其在通过熔融涂覆金属浴时具有无氧化的表面。 该方法包括以下步骤:当双面涂覆的条带离开涂层浴时,提供一个外壳,将精整喷嘴定位在外壳内的涂覆条带的任一侧,用非氧化或 惰性气体。 该装置包括上述外壳,喷射精加工喷嘴位于其中,以及适当的系统以在外壳内提供非氧化或惰性气氛。

    Method for preventing coating metal pickup on hot-dip coating line rolls
    8.
    发明授权
    Method for preventing coating metal pickup on hot-dip coating line rolls 失效
    防止在热浸镀膜线卷上镀金属拾取的方法

    公开(公告)号:US3975556A

    公开(公告)日:1976-08-17

    申请号:US398761

    申请日:1973-09-19

    IPC分类号: C23C2/00 C23C2/26 B05C3/02

    CPC分类号: C23C2/003 C23C2/26

    摘要: Application of a graphite film to at least the first roll contacted by a metal strip to which a coating metal has been applied. The roll may be scraped clean and the graphite film applied immediately after scraping. The graphite film may be applied by wiping the roll with a solid graphite block or by wiping the roll with a graphite colloidal suspension in a suitable carrier. In the latter event, the roll temperature must be high enough to vaporize the carrier so that strip contamination is avoided. The graphite film prevents adherence of coating metal particles to the roll surface whereby damage to the coated surface on the metal strip is prevented.

    摘要翻译: 将至少第一辊石墨膜应用于已被涂覆金属的金属带接触。 可以刮擦辊子并刮擦后立即施加石墨膜。 可以通过用固体石墨块擦拭辊或通过在合适的载体中用石墨胶体悬浮液擦拭辊来施加石墨膜。 在后一种情况下,辊温度必须足够高以使载体蒸发,以避免带状污染。 石墨膜防止涂覆金属颗粒粘附到辊表面,从而防止金属带上涂覆表面的损坏。

    Method of treating steel strip and sheet surfaces for metallic coating
    9.
    发明授权
    Method of treating steel strip and sheet surfaces for metallic coating 失效
    钢带和金属涂层表面处理方法

    公开(公告)号:US4123292A

    公开(公告)日:1978-10-31

    申请号:US753623

    申请日:1976-12-23

    IPC分类号: C23C2/38 C23C11/08

    CPC分类号: C23C2/38

    摘要: A method of preparing the surfaces of steel strip and sheet stock for fluxless hot dip metallic coating, comprising the steps of passing the stock through a first heating section under conditions which form a visible iron oxide layer on the stock surfaces within the color range of dark straw through blue, continuing the heating of the stock in a second heating section isolated from the first heating section in an atmosphere containing less than 5% hydrogen by volume, thereby preserving the oxide layer, and cooling the stock approximately to the temperature of the molten coating metal in a cooling zone containing a reducing atmosphere comprising at least 10% hydrogen by volume, whereby to reduce the oxide layer completely to a metallic iron surface wettable by the coating metal. The radiant energy absorptivity of the steel stock is increased by the formation and preservation of the iron oxide layer in the first and second heating sections.

    摘要翻译: 一种制备用于无金属热浸金属涂层的钢带和片材的表面的方法,包括以下步骤:在黑暗的颜色范围内在原料表面形成可见氧化铁层的条件下通过第一加热部分 秸秆通过蓝色,在包含小于5体积%的氢气的气氛中,在与第一加热部分隔离的第二加热部分继续加热原料,从而保留氧化物层,并将原料冷却至熔融 在含有包含至少10体积%氢的还原气氛的冷却区中涂覆金属,从而将氧化物层完全还原成可被涂层金属润湿的金属铁表面。 通过在第一和第二加热段中氧化铁层的形成和保存来增加钢坯的辐射能吸收性。