JPS5672169A - Heat treatment of steel sheet formed product - Google Patents
Heat treatment of steel sheet formed productInfo
- Publication number
- JPS5672169A JPS5672169A JP14803079A JP14803079A JPS5672169A JP S5672169 A JPS5672169 A JP S5672169A JP 14803079 A JP14803079 A JP 14803079A JP 14803079 A JP14803079 A JP 14803079A JP S5672169 A JPS5672169 A JP S5672169A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- hardening
- nitriding
- carburizing
- 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.)
- Pending
Links
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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE:To make it possible to minimize hardening distortion and shorten treatment time of the succeeding processes, and, at the same time, to omit some processes, by lowering gas carburizing, nitriding and hardening temperatures when heat treatments, such as gas carburizing, nitriding, hardening, etc., are made on steel sheet products. CONSTITUTION:With a purpose to improve mechanical and physical characteristics of products, such as disc plate of friction clutch for motorcars, manufactured by a work forming of cold rolled or hot rolled steel sheets, the steel sheet is heated in RX gas containing 0.5-3.0% NH3 gas and 0.1-0.5% CH gas, such as butane, etc., and the sheet is hardened after carburizing and nitriding are made on the surface with the gas. Temperature of gas carburizing and nitriding treatments is set to a level of 700-780 deg.C and that of hardening is set to 600-700 deg.C, both of which are lower than those of conventional methods. As the result of this arrangement, occurrences of hardening distortion are reduced and the following tempering time can be reduced considerably. Moreover, improvement in mechanical and physical characteristics of disc plate can be achieved without applying any film of phosphoric acid containing zinc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14803079A JPS5672169A (en) | 1979-11-15 | 1979-11-15 | Heat treatment of steel sheet formed product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14803079A JPS5672169A (en) | 1979-11-15 | 1979-11-15 | Heat treatment of steel sheet formed product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5672169A true JPS5672169A (en) | 1981-06-16 |
Family
ID=15443537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14803079A Pending JPS5672169A (en) | 1979-11-15 | 1979-11-15 | Heat treatment of steel sheet formed product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5672169A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6036658A (en) * | 1983-04-14 | 1985-02-25 | ルーカス インダストーズ パブリック リミティド カンパニー | Manufacture of corrosion resistant steel member |
| US5707460A (en) * | 1995-07-11 | 1998-01-13 | Porter-Cable Corporation | Method of producing parts having improved wear, fatigue and corrosion resistance from medium alloy, low carbon steel and parts obtained therefrom |
-
1979
- 1979-11-15 JP JP14803079A patent/JPS5672169A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6036658A (en) * | 1983-04-14 | 1985-02-25 | ルーカス インダストーズ パブリック リミティド カンパニー | Manufacture of corrosion resistant steel member |
| JPH0428783B2 (en) * | 1983-04-14 | 1992-05-15 | Lucas Ind Plc | |
| US5707460A (en) * | 1995-07-11 | 1998-01-13 | Porter-Cable Corporation | Method of producing parts having improved wear, fatigue and corrosion resistance from medium alloy, low carbon steel and parts obtained therefrom |
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