And a method of manufacturing the automobile fuel
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专利名称：And a method of manufacturing the
automobile fuel tank for chromate-treated
steel
发明人：リー, ジャエ-リュン,チャン, サム-キュ,ノー, サン-ゲオル,チョー, スー-ヒョウン
申请号：JP特願2001-539942(P2001-539942)
申请日：20001127
公开号：JP特表2003-514996(P2003-514996A)A
公开日：
20030422
专利内容由知识产权出版社提供
摘要： [Summary] (57) The invention relates chromate used in the manufacture of surface-treated steel sheet and such surface-treated steel sheet chromate layer seam workability excellent fuel resistance and corrosion resistance as well are excellent is coated about the solution. Chromium in an aqueous solution of chromium 7~50g / l are dissolved component ratio of (a) 3 chromium is 0.4 to 0.8, chromate solution according to The invention relates to a solution of the chromium was prepared by adding phosphoric acid 50~80w%, hydrofluoric acid 20~40w%, colloidal silica 300~2000w%, sodium phosphate 25~40w% sulfuric acid and 5~15w% for chromium component curing agent solution pH was adjusted to 2-3 by addition of one of one of glycidyl silane or epoxy silane 2~10w% for (b) the total curing agent solution; main agent solution When; After wherein the mixed 10~60w% with respect to the base resin solution of the curing agent solution was coated on cold rolled steel sheet with zinc or a zinc alloy is plated chromate solution such, 140~250 ℃ to produce automotive fuel tank for surface-treated steel sheet and dried at baking temperature of.
申请人：ポハン アイアン アンド スチール カンパニー リミテッド
地址：大韓民国, キュンサンブク-ド, ポハン-シティ 790-785, ナム-ク, コエドン-ドン, 1国籍：KR
代理人：荒船 博司 (外1名)
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