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    • 22. 发明授权
    • Dipless metallizing apparatus
    • 无凹凸金属化装置
    • US4422403A
    • 1983-12-27
    • US366312
    • 1982-04-07
    • Theodore Bostroem
    • Theodore Bostroem
    • C23C2/06C23C2/40C23C4/14B05C11/00
    • C23C2/06C23C2/40C23C4/14
    • Metallic articles, for instance, ferrous strips are metallized, for instance, zinc coated by passing the heated article through a coating chamber and applying thereto a continuous stream of the molten coating metal so as to uniformly and evenly metallize said article. Thereafter, excess molten coating metal is removed from the coated article by hot gas blasting and the hot gas blasted article leaving the coating chamber is immediately cooled. Wiping means may be provided before applying the molten coating metal so as to deflect any molten coating metal dropping from the metallic article passing therethrough, while rollers may be arranged between the coating metal applying means and the hot gas blasting means. Said rollers serve to remove the major part of excess coating metal from the coated metallic article and to stabilize movement of the metallic article passing through the coating chamber. In contrast to known application of coating metal by atomizing or spraying, no gas is admixed to the continuous stream of the molten coating metal which is, so to say, gently poured onto the surface of the metallic article. Thus coating is effected within a short period of time and a non-porous coating is achieved. Further said short period of time of exposure of the steel article to the liquid zinc enables to eliminate the customary addition of aluminum to the spelter, thus permitting the use of steam for the hot blast instead of the more expensive non-oxidizing gas for that purpose, likewise eliminating the formation of White rust.
    • 例如,金属制品例如通过将加热制品通过涂覆室并涂覆到熔融涂覆金属的连续流上以使均匀且均匀地金属化所述制品而金属化,例如镀锌。 此后,通过热气体喷射从涂覆制品上除去多余的熔融涂覆金属,并立即冷却离开涂覆室的热气体喷射制品。 可以在施加熔融涂覆金属之前提供擦拭装置,以便使通过其的金属制品滴落的熔融涂覆金属偏转,同时辊可以布置在涂覆金属施加装置和热气体喷射装置之间。 所述辊用于从涂覆的金属制品中除去多余涂层金属的主要部分,并稳定通过涂覆室的金属制品的运动。 与通过雾化或喷涂的涂覆金属的已知应用相反,没有气体混合到熔融涂覆金属的连续流中,这就是说,轻轻地倾倒到金属制品的表面上。 因此,在短时间内进行涂覆,并且实现无孔涂层。 此外,钢制品暴露于液态锌的短时间使得能够消除将铝常规添加到螺旋桨中,从而允许使用蒸汽进行热风代替用于该目的的更昂贵的非氧化性气体 ,同样消除白锈的形成。
    • 23. 发明授权
    • Means for depositing films of metal on a series of plates or sheets
    • 用于在一系列板或片上沉积金属薄膜的方法
    • US2515358A
    • 1950-07-18
    • US68998846
    • 1946-08-12
    • TELEGRAPH CONDENSER CO LTD
    • ARCHIBALD SPORING PERCYPIERCY JOHNSON CHARLES
    • B05B15/04C23C4/14
    • C23C4/14B05B15/045
    • In a method of depositing films of metal on a series of plates or sheets by spray painting, the metal is sprayed through a series of masks cut in paper or other material of small value compared with metal, each mask being discarded at or before the stage at which the margin has become contaminated sufficiently to require cleaning. As shown, applied to an apparatus for coating a series of mica plates in succession, paper 3 is passed in step by step motion, imparted by a ratchet 16 and a friction drum 5, under a hole-punching device 25 and on to a spraying station where a mica sheet, removed from a magazine 36 in which a number are stacked, by means of a suction nozzle 38, is deposited on the aperture. Metal from an automatically-operated spray gun 35 is deposited on the exposed portion of the mica which then moves forward to a point where a second suction nozzle removes the coated sheet and transfers it to a travelling belt for further processing, e.g., heat treatment, the paper being discarded. The sequence of operations is controlled by cams operated by a continuously rotating shaft 9. The second Provisional Specification relates to the construction and operation of the magazine 36 and states that it may be used for purposes other than in the apparatus described above. Specification 589,582 is referred to.