JPS572828A - Manufacture of steel product with superior suitability to pickling - Google Patents
Manufacture of steel product with superior suitability to picklingInfo
- Publication number
- JPS572828A JPS572828A JP7717080A JP7717080A JPS572828A JP S572828 A JPS572828 A JP S572828A JP 7717080 A JP7717080 A JP 7717080A JP 7717080 A JP7717080 A JP 7717080A JP S572828 A JPS572828 A JP S572828A
- Authority
- JP
- Japan
- Prior art keywords
- pickling
- products
- hot
- rolling
- suitability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
PURPOSE:To remarkably enhance the suitability of secondary scale on the surfaces of steel products to pickling by coating the products with an agent enhancing the suitability of secondary scale to pickling and with an antioxidant in order before hot-rolling the products. CONSTITUTION:Before hot-rolling steel products heated to 1,100-1,400 deg.C, the products are coated with very finely powdered SiC having <=20mum size by 10- 800g/m<2> using a binder such as sodium silicate or polyphosphoric acid, and they are further coated with an antioxidant consisting of Cr2O3, chamotte, SiO2, Al and sodium silicate. The coated steel products are then hot-rolled and hot-coiled. Thus, secondary scale is formed by a very small amount during the hot-rolling and the following process, and it can be removed thoroughly by pickling with an aqueous soln. of hydrochloric acid or the like in a short time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7717080A JPS572828A (en) | 1980-06-10 | 1980-06-10 | Manufacture of steel product with superior suitability to pickling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7717080A JPS572828A (en) | 1980-06-10 | 1980-06-10 | Manufacture of steel product with superior suitability to pickling |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS572828A true JPS572828A (en) | 1982-01-08 |
Family
ID=13626309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7717080A Pending JPS572828A (en) | 1980-06-10 | 1980-06-10 | Manufacture of steel product with superior suitability to pickling |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS572828A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6081374A (en) * | 1983-10-08 | 1985-05-09 | 東洋紡績株式会社 | Oil agent for elastic yarn |
US4824373A (en) * | 1986-10-08 | 1989-04-25 | Sankin Industry Co. | Swaged metal denture base |
US5540953A (en) * | 1992-02-14 | 1996-07-30 | Hercules Incorporated | Process of preparing fabric comprising hydrophobic polyolefin fibers |
AU718145B2 (en) * | 1997-12-05 | 2000-04-06 | Mitsubishi Heavy Industries, Ltd. | Method and system for suppressing formation of scale in hot finishing mill system |
CN102180693A (en) * | 2011-03-14 | 2011-09-14 | 高庆昌 | High-absorptivity coating for resisting oxidation and decarburization of steel billet and preparation method thereof |
-
1980
- 1980-06-10 JP JP7717080A patent/JPS572828A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6081374A (en) * | 1983-10-08 | 1985-05-09 | 東洋紡績株式会社 | Oil agent for elastic yarn |
US4824373A (en) * | 1986-10-08 | 1989-04-25 | Sankin Industry Co. | Swaged metal denture base |
US5540953A (en) * | 1992-02-14 | 1996-07-30 | Hercules Incorporated | Process of preparing fabric comprising hydrophobic polyolefin fibers |
US5545481A (en) * | 1992-02-14 | 1996-08-13 | Hercules Incorporated | Polyolefin fiber |
AU718145B2 (en) * | 1997-12-05 | 2000-04-06 | Mitsubishi Heavy Industries, Ltd. | Method and system for suppressing formation of scale in hot finishing mill system |
CN102180693A (en) * | 2011-03-14 | 2011-09-14 | 高庆昌 | High-absorptivity coating for resisting oxidation and decarburization of steel billet and preparation method thereof |
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