GB1365180A - Surface hardening - Google Patents
Surface hardeningInfo
- Publication number
- GB1365180A GB1365180A GB5159572A GB5159572A GB1365180A GB 1365180 A GB1365180 A GB 1365180A GB 5159572 A GB5159572 A GB 5159572A GB 5159572 A GB5159572 A GB 5159572A GB 1365180 A GB1365180 A GB 1365180A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zone
- oil
- nov
- covered
- plasma
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/30—Plasma torches using applied electromagnetic fields, e.g. high frequency or microwave energy
-
- 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
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Noise Elimination (AREA)
Abstract
1365180 Hardening ferrous metal surfaces BOHLER & CO AG Gebr 8 Nov 1972 [23 Nov 1971] 51595/72 Addition to 1347555 Heading C7N In a modification of the process of Specification 1347555, according to which material is surface hardened by scanning with a jet of cold plasma followed by self-quenching to produce a surface zone of metastable austenite, use of greater power input to obtain a deeper zone is permitted by immersing the work in an electrically non- conductive liquid so that the area to be hardened is covered by a layer of uniform thickness which is displaced by the plasma stream. The liquid may be a mineral or silicone oil and may be cooled during the operation. As exemplified, steel 3 containing 0À8% C and of cross-section suitable for making edges for skis was heat treated to a strength of 135 kg/mm<SP>2</SP> and then advanced at 830 mm/min through oil 5 having a flash point of 280 C and which was cooled by water circulating through copper tubes. The edge of the strip was covered intially with 1 mm. of oil and was subjected to plasma jet 2 from torch 1 operated at 400 watts, whereby a 1 mm. metastable austenite zone was obtained having a micro hardness of 930-940 kgm/mm<SP>2</SP> at 100gm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT849970A AT315221B (en) | 1970-09-21 | 1970-09-21 | Process for the two-stage surface hardening of workpieces made of iron and steel alloys and arrangement Implementation of the process |
| AT1007371A AT322599B (en) | 1970-09-21 | 1971-11-23 | PROCESS FOR THE TWO-STAGE SURFACE HARDENING OF WORKPIECES MADE OF IRON AND STEEL ALLOYS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1365180A true GB1365180A (en) | 1974-08-29 |
Family
ID=27151002
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4305671A Expired GB1347555A (en) | 1970-09-21 | 1971-09-15 | Surface hardening |
| GB5159572A Expired GB1365180A (en) | 1970-09-21 | 1972-11-08 | Surface hardening |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4305671A Expired GB1347555A (en) | 1970-09-21 | 1971-09-15 | Surface hardening |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3834947A (en) |
| AT (1) | AT322599B (en) |
| BE (2) | BE772883A (en) |
| CA (1) | CA946482A (en) |
| CH (1) | CH575468A5 (en) |
| DD (1) | DD94831A5 (en) |
| DE (2) | DE2111183B2 (en) |
| ES (3) | ES395042A1 (en) |
| FI (1) | FI52108C (en) |
| FR (2) | FR2107739A5 (en) |
| GB (2) | GB1347555A (en) |
| IT (1) | IT939438B (en) |
| NL (1) | NL7112313A (en) |
| NO (1) | NO134492C (en) |
| SE (1) | SE381474B (en) |
| ZA (1) | ZA715382B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3944443A (en) * | 1974-05-01 | 1976-03-16 | Francis Lee Jones | Ultra high temperature chemical reactions with metals |
| ATA410976A (en) * | 1976-06-04 | 1981-06-15 | Siemens Ag Oesterreich | CONVEYOR ROLL FOR CONTINUOUS |
| US4157923A (en) * | 1976-09-13 | 1979-06-12 | Ford Motor Company | Surface alloying and heat treating processes |
| GB2160227B (en) * | 1984-05-04 | 1988-09-07 | John Durham Hawkes | Heat treatment process |
| US5360495A (en) * | 1989-07-25 | 1994-11-01 | Albert Schuler | Process for hardening cutting edges with an oval shaped plasma beam |
| FR2653137B1 (en) * | 1989-10-17 | 1993-06-11 | Siderurgie Fse Inst Rech | PROCESS FOR THE SURFACE TREATMENT OF STEEL PRODUCTS BY ACTION OF A PLASMA. |
| US7882640B2 (en) * | 2006-03-29 | 2011-02-08 | The Gillette Company | Razor blades and razors |
| US20070227008A1 (en) * | 2006-03-29 | 2007-10-04 | Andrew Zhuk | Razors |
| US7448135B2 (en) * | 2006-03-29 | 2008-11-11 | The Gillette Company | Multi-blade razors |
| US8499462B2 (en) | 2006-04-10 | 2013-08-06 | The Gillette Company | Cutting members for shaving razors |
| US8011104B2 (en) | 2006-04-10 | 2011-09-06 | The Gillette Company | Cutting members for shaving razors |
| US9248579B2 (en) * | 2008-07-16 | 2016-02-02 | The Gillette Company | Razors and razor cartridges |
| DE102011080620B4 (en) * | 2011-08-08 | 2014-06-05 | Siemens Aktiengesellschaft | Method for coating an insulation component and insulation component, and electrically conductive heating cable |
-
1971
- 1971-03-09 DE DE2111183A patent/DE2111183B2/en active Granted
- 1971-08-05 CH CH1157971A patent/CH575468A5/xx not_active IP Right Cessation
- 1971-08-11 CA CA120,302A patent/CA946482A/en not_active Expired
- 1971-08-12 ZA ZA715382A patent/ZA715382B/en unknown
- 1971-09-02 NO NO3280/71A patent/NO134492C/no unknown
- 1971-09-07 NL NL7112313A patent/NL7112313A/xx not_active Application Discontinuation
- 1971-09-13 ES ES395042A patent/ES395042A1/en not_active Expired
- 1971-09-13 FI FI712549A patent/FI52108C/en active
- 1971-09-15 GB GB4305671A patent/GB1347555A/en not_active Expired
- 1971-09-16 FR FR7133349A patent/FR2107739A5/fr not_active Expired
- 1971-09-17 SE SE7111790A patent/SE381474B/en unknown
- 1971-09-18 IT IT52964/71A patent/IT939438B/en active
- 1971-09-20 DD DD157829A patent/DD94831A5/xx unknown
- 1971-09-21 BE BE772883A patent/BE772883A/en unknown
- 1971-09-21 US US00182420A patent/US3834947A/en not_active Expired - Lifetime
- 1971-11-23 AT AT1007371A patent/AT322599B/en not_active IP Right Cessation
-
1972
- 1972-02-12 ES ES399732A patent/ES399732A1/en not_active Expired
- 1972-10-11 DE DE2249642A patent/DE2249642B2/en active Granted
- 1972-11-04 ES ES408284A patent/ES408284A2/en not_active Expired
- 1972-11-08 GB GB5159572A patent/GB1365180A/en not_active Expired
- 1972-11-15 FR FR7240462A patent/FR2160857B2/fr not_active Expired
- 1972-11-17 BE BE791565D patent/BE791565R/en active
Also Published As
| Publication number | Publication date |
|---|---|
| US3834947A (en) | 1974-09-10 |
| FR2160857B2 (en) | 1977-01-14 |
| IT939438B (en) | 1973-02-10 |
| DE2249642B2 (en) | 1978-10-26 |
| DD94831A5 (en) | 1973-01-05 |
| CA946482A (en) | 1974-04-30 |
| DE2249642A1 (en) | 1973-05-30 |
| FR2107739A5 (en) | 1972-05-05 |
| NO134492B (en) | 1976-07-12 |
| DE2111183B2 (en) | 1978-03-23 |
| FI52108B (en) | 1977-02-28 |
| ZA715382B (en) | 1972-04-26 |
| ES395042A1 (en) | 1973-12-01 |
| NL7112313A (en) | 1972-03-23 |
| BE791565R (en) | 1973-03-16 |
| SE381474B (en) | 1975-12-08 |
| GB1347555A (en) | 1974-02-27 |
| CH575468A5 (en) | 1976-05-14 |
| DE2111183A1 (en) | 1972-03-23 |
| DE2111183C3 (en) | 1978-11-30 |
| NO134492C (en) | 1976-10-20 |
| ES408284A2 (en) | 1975-11-16 |
| FI52108C (en) | 1977-06-10 |
| BE772883A (en) | 1972-01-17 |
| FR2160857A2 (en) | 1973-07-06 |
| AT322599B (en) | 1975-05-26 |
| DE2249642C3 (en) | 1979-06-28 |
| ES399732A1 (en) | 1975-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |