发明名称 |
DESCALING METHOD FOR HOT ROLLED STEEL PLATE |
摘要 |
PURPOSE:To shorten the time required to remove scale on the surface of a hot rolled steel plate by pickling by cold-rolling the plate at a specified reduction ratio and carrying out liq. honing before descaling. CONSTITUTION:Hot rolled steel plate 1 with scale stuck to the surfaces is cold rolled at 10-40% reduction ratio with cold rolling mill 2 to crush and crack the scale. Plate 1 is then passed through liq. honing device 3, where a granular abrasive material is sprayed together with water or the like to remove part of the scale mechanically. The residual scale is removed by dissolution in acid in pickling vessel 4. The resulting steel plate thoroughly free from scale is washed in washing vessel 5 to remove the acid, and it is dried with dryer 6. |
申请公布号 |
JPS56139681(A) |
申请公布日期 |
1981.10.31 |
申请号 |
JP19800043245 |
申请日期 |
1980.04.01 |
申请人 |
SUMITOMO METAL IND |
发明人 |
KIMIWADA NORIYUKI;SASAKI HAJIME |
分类号 |
C23G1/08;B21B45/08;C23G3/02 |
主分类号 |
C23G1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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