| 摘要 |
PCT No. PCT/KR97/00201 Sec. 371 Date Jun. 19, 1998 Sec. 102(e) Date Jun. 19, 1998 PCT Filed Oct. 23, 1997 PCT Pub. No. WO98/18979 PCT Pub. Date May 7, 1998An apparatus and a method for coating zinc on steel sheets for use on automobiles and electronic apparatuses are disclosed. A fluidized bed forming chamber is provided to fluidize zinc powders in carrying out a zinc coating on a heated steel sheet, so that not only a uniformly coated layer but also a thick coated layer can be obtained. The apparatus for continuously coating zinc on a steel sheet according to the present invention includes a zinc coating chamber for forming a fluidized bed of zinc powders, for passing a heated steel sheet through the fluidized bed of the zinc powders, and for making the zinc powders melt-adhere on the steel sheet during its passing through the fluidized bed. A fluidized bed forming chamber forms a fluidized bed of the zinc powders by making the zinc powders suspended by spouting a gas. A cyclone separates the zinc powders from the gas after recovery of them from the zinc coating chamber, to discharge the gas, and to return the separated zinc powders to the fluidized bed forming chamber. A deflector shifts the advancing direction of the steel sheet after its admittance into the zinc coating chamber. A tension roll shifts the advancing direction of a zinc coated steel sheet. Further, the zinc coating chamber includes one or more electrodes for electrostatically charging the zinc powders.
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