GB1241686A - Enhancement of steel sheet punchability - Google Patents
Enhancement of steel sheet punchabilityInfo
- Publication number
- GB1241686A GB1241686A GB49472/68A GB4947268A GB1241686A GB 1241686 A GB1241686 A GB 1241686A GB 49472/68 A GB49472/68 A GB 49472/68A GB 4947268 A GB4947268 A GB 4947268A GB 1241686 A GB1241686 A GB 1241686A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium
- parts
- punchability
- oct
- steel sheet
- 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 3
- 239000011575 calcium Substances 0.000 abstract 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- 229910052791 calcium Inorganic materials 0.000 abstract 2
- 150000005846 sugar alcohols Polymers 0.000 abstract 2
- 229910000976 Electrical steel Inorganic materials 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 abstract 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 abstract 1
- 229930006000 Sucrose Natural products 0.000 abstract 1
- 150000005215 alkyl ethers Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- RMISVBXFFXBNAD-UHFFFAOYSA-N calcium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium Chemical compound [Ca+2].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O RMISVBXFFXBNAD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000005720 sucrose Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
- C23C22/74—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Soft Magnetic Materials (AREA)
Abstract
1,241,686. Modifying steel surfaces. KAWASAKI STEEL CORP. Oct.18, 1968 [Oct. 18, 1967], No. 49472/68. Heading C7U. Ferrous sheet is treated with an aqueous solution containing by weight: - 100 parts chromic acid 16-20 parts calcium 8-20 parts polyhydric alcohol and baked at e.g. 200-500C. to improve its punchability, corrosion resistance, heat resistance and weldability. The calcium may be provided by calcium bichromate, CaO, Ca(OH) 2 , CaCrO 4 or Ca CO 3 and the polyhydric alcohol may be ethylene glycol, glycerine, sucrose or grape sugar. A non ionic surface active or melting agent such as a polyexyethylene alkyl ether in an amount of 0À002-0À5% may also be present. The coating thickness is 0À5-2À5 microns. The treatment is particularly effective for electrical steel sheet containing less than 4% Si.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6702767 | 1967-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1241686A true GB1241686A (en) | 1971-08-04 |
Family
ID=13332978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49472/68A Expired GB1241686A (en) | 1967-10-18 | 1968-10-18 | Enhancement of steel sheet punchability |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3591425A (en) |
| BE (1) | BE722568A (en) |
| DE (1) | DE1803890B2 (en) |
| FR (1) | FR1587993A (en) |
| GB (1) | GB1241686A (en) |
| SE (1) | SE347772B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3993510A (en) * | 1975-05-21 | 1976-11-23 | The United States Of America As Represented By The Secretary Of The Navy | Thixotropic chemical conversion material for corrosion protection of aluminum and aluminum alloys |
-
1968
- 1968-10-09 US US766266A patent/US3591425A/en not_active Expired - Lifetime
- 1968-10-17 FR FR1587993D patent/FR1587993A/fr not_active Expired
- 1968-10-18 SE SE14097/68A patent/SE347772B/xx unknown
- 1968-10-18 DE DE19681803890 patent/DE1803890B2/en active Pending
- 1968-10-18 GB GB49472/68A patent/GB1241686A/en not_active Expired
- 1968-10-18 BE BE722568D patent/BE722568A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE722568A (en) | 1969-04-01 |
| DE1803890B2 (en) | 1971-03-25 |
| SE347772B (en) | 1972-08-14 |
| FR1587993A (en) | 1970-04-03 |
| US3591425A (en) | 1971-07-06 |
| DE1803890A1 (en) | 1969-07-17 |
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