ES355521A1 - Improved Method for the Manufacture of Razor Blades and Like Tools - Google Patents
Improved Method for the Manufacture of Razor Blades and Like ToolsInfo
- Publication number
- ES355521A1 ES355521A1 ES355521A ES355521A ES355521A1 ES 355521 A1 ES355521 A1 ES 355521A1 ES 355521 A ES355521 A ES 355521A ES 355521 A ES355521 A ES 355521A ES 355521 A1 ES355521 A1 ES 355521A1
- Authority
- ES
- Spain
- Prior art keywords
- temperature
- range
- razor blades
- tools
- manufacture
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- B21D53/00—Making other particular articles
- B21D53/60—Making other particular articles cutlery wares; garden tools or the like
- B21D53/64—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades
- B21D53/645—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades safety razor blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Razor blades and similar tools are made from steel containing at least 8% of chromium, which after cold working is austenitized at a temperature not less than 850 C., at which carbides are substantially all dissolved, is then rapidly cooled, e.g. between water-cooled blocks, to produce a structure containing both austenite and martensite, and is then heat-treated at a temperature above 600 C. but below the austenitizing temperature. After the above treatment the steel may be further coldrolled before being formed to shape it is then hardened from a temperature in the range 850 to 1150 C. by cooling to room temperature or to a temperature in the range - 20 to - 120 C., possibly followed by tempering in the range 100 to 275 C. after which the cutting edge is formed as by grinding. Finally, a fluoro-polymer coating may be applied, necessitating heat-treatment at a temperature above 150 C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE985667A SE301656B (en) | 1967-06-30 | 1967-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES355521A1 true ES355521A1 (en) | 1969-12-01 |
Family
ID=20277659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES355521A Expired ES355521A1 (en) | 1967-06-30 | 1968-06-27 | Improved Method for the Manufacture of Razor Blades and Like Tools |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE1752655B2 (en) |
| ES (1) | ES355521A1 (en) |
| FR (1) | FR1573392A (en) |
| GB (1) | GB1179829A (en) |
| NL (1) | NL6809231A (en) |
| SE (1) | SE301656B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3937031C1 (en) * | 1989-11-07 | 1990-09-13 | Steffens Walter Gmbh Co | Conversion of work material to martensitic chromium steel - for prepn. of sharp knives |
| JP3354163B2 (en) * | 1991-08-05 | 2002-12-09 | 日立金属株式会社 | Stainless steel for razor and method for producing the same |
| DE4206427C2 (en) * | 1992-02-29 | 1994-02-03 | Bestar Stahlhandels Gmbh | Use of a steel for the production of cutter knives |
| KR101318274B1 (en) * | 2009-12-28 | 2013-10-15 | 주식회사 포스코 | Martensitic stainless steels by twin roll strip casting process and manufacturing method thereof |
| DE102010009154A1 (en) * | 2010-02-24 | 2011-08-25 | Hauni Maschinenbau AG, 21033 | Cutting knife for a cutting device in a machine for producing rod-shaped products of the tobacco-processing industry |
| WO2016174500A1 (en) * | 2015-04-30 | 2016-11-03 | Aperam | Martensitic stainless steel, method for producing a semi-finished product made from said steel and cutting tool produced from said semi-finished product |
| US20160361828A1 (en) * | 2015-06-11 | 2016-12-15 | The Gillette Company | Razor blade steel |
| US11230025B2 (en) | 2015-11-13 | 2022-01-25 | The Gillette Company Llc | Razor blade |
| US11654588B2 (en) | 2016-08-15 | 2023-05-23 | The Gillette Company Llc | Razor blades |
-
1967
- 1967-06-30 SE SE985667A patent/SE301656B/xx unknown
-
1968
- 1968-06-27 ES ES355521A patent/ES355521A1/en not_active Expired
- 1968-06-28 NL NL6809231A patent/NL6809231A/xx unknown
- 1968-06-28 DE DE19681752655 patent/DE1752655B2/en active Pending
- 1968-06-28 FR FR1573392D patent/FR1573392A/fr not_active Expired
- 1968-06-28 GB GB3110268A patent/GB1179829A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6809231A (en) | 1968-12-31 |
| DE1752655A1 (en) | 1972-03-16 |
| DE1752655B2 (en) | 1973-05-17 |
| SE301656B (en) | 1968-06-17 |
| FR1573392A (en) | 1969-07-04 |
| GB1179829A (en) | 1970-02-04 |
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