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公开(公告)号：US3887720A
公开(公告)日：1975-06-03
申请号：US43863174
申请日：1974-02-01
Applicant: BRITISH STEEL CORP
Inventor： JACKSON ALBERT EDWARD
Abstract: The invention concerns a method and apparatus for coating a metallic strip comprising wetting a first surface of the strip, passing the wetted first surface adjacent to and at a predetermined constant spacing, throughout its width, from a first electrostatic device, and supplying a metallic powder to the latter so that the wetted first surface is provided electrostatically with a coating of the metallic powder, wetting a second surface of the strip which is opposite to the said first surface thereof, passing the wetted second surface adjacent to and at a predetermined constant spacing, throughout its width, from a second electrostatic device, and supplying a metallic powder to the latter so that the wetted second surface is provided electrostatically with a coating of the metallic powder, maintaining the last-mentioned predetermined constant spacing by passing the wetted coating on the first surface of the strip over at least one smooth surfaced cylindrical support roll disposed adjacent to the second electrostatic device, and drying the wetted coatings on the first and second surfaces and effecting firm adherence of the dry coatings to said surfaces.
Abstract translation: 本发明涉及一种用于涂覆金属条的方法和装置，包括润湿条的第一表面，使润湿的第一表面在其整个宽度上与第一静电装置相邻并以预定的恒定间隔从第一静电装置通过，并且供应金属粉末 使润湿的第一表面静电地与金属粉末的涂层一起提供，润湿条带的与其所述第一表面相反的第二表面，使润湿的第二表面相邻并以预定的恒定间隔 在其整个宽度上，从第二静电装置，并且将金属粉末供应到后者，使得润湿的第二表面被静电地涂覆有金属粉末的涂层，通过使润湿的涂层通过，保持最后提到的预定的恒定间隔 该条带的第一表面在至少一个光滑的表面圆柱形支撑辊上设置 nt到第二静电装置，并干燥第一和第二表面上的润湿涂层，并且使干涂层牢固地粘附到所述表面上。
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公开(公告)号：US3884729A
公开(公告)日：1975-05-20
申请号：US41184673
申请日：1973-11-01
Applicant: BRITISH STEEL CORP
Inventor： JACKSON ALBERT EDWARD , WILLIAMS ERNEST WYNNE
CPC classification number: C23C10/34 , Y10T29/49982 , Y10T428/12139 , Y10T428/12965
Abstract: A method of providing a surface of a steel substrate with an aluminum coating, the said method comprising coating the said surface of the steel substrate with a layer of metal, coating the said metal layer with a layer containing aluminium powder, the aluminium powder forming an alloy with the steel substrate at a predetermined elevated temperature, compacting the said metal and powder layers to the substrate, effecting a cold reduction, and effecting a subsequent annealing heat treatment to make the metal and powder layers adhere tightly to the substrate, and thus provide the substrate with the said aluminium coating, the metal layer serving to control nucleation of the said alloy which is formed at the said predetermined elevated temperature.
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