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    • 6. 发明专利
    • Temporary rust preventive method and rust preventive for iron and steel materials
    • 钢铁预防方法和预防措施
    • JPS5959886A
    • 1984-04-05
    • JP16759082
    • 1982-09-28
    • Mitsubishi Heavy Ind Ltd
    • MOTOKURA TERUO
    • C23F11/00
    • PURPOSE: To form easily a temporary rust preventive film which is easily strippable, by coating a sol contg. sodium nitrite, sodium carbonate, and gelatin, etc. on the surface of iron and steel materials and drying the same.
      CONSTITUTION: The sol prepd. by heating an aq. soln. contg. 0.5W3% sodium nitrite or potassium nitrite, 0.5W2% sodium carbonate or potassium carbonate, 0.05W0.5% gelatin to about ≥30°C is coated on the surface of iron and steel materials by dipping, brushing, spray coating, etc., and is dried to remove the moisture, thereby forming a thin rust preventive film having the high effect of preventing rust in the atm. air. Said film is easily strippable when the gelatin is dissolved by applying hot water thereon. The above-mentioned method is executed first by putting premeasured sodium nitrite 4 and sodium carbonate 5 in a gelatin vessel G and dissolving the same together with the gelatin vessel in the heated water in the stage of use whereby the rust preventive liquid is easily prepd.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:为了容易地形成易于剥离的临时防锈膜,通过涂布溶胶。 亚硝酸钠,碳酸钠和明胶等在钢铁材料表面进行干燥。 规定: 通过加热aq。 SOLN。 contg。 0.5-3%亚硝酸钠或亚硝酸钾,0.5-2%碳酸钠或碳酸钾,0.05-0.5%明胶至约> = 30℃,通过浸涂,刷涂,喷涂等涂覆在钢铁材料表面 等,并干燥以除去水分,从而形成具有防止大气中生锈的高效果的薄防锈膜。 空气。 当通过在其上施加热水使明胶溶解时,所述膜容易剥离。 首先通过将预先测定的亚硝酸钠4和碳酸钠5放入明胶容器G中并在明胶容器中将其与明胶容器一起溶解在加热的水中,使防锈液容易地制备,首先执行上述方法。