JPS57200523A - Method for hardening white pig iron on cam slide surface - Google Patents
Method for hardening white pig iron on cam slide surfaceInfo
- Publication number
- JPS57200523A JPS57200523A JP8480881A JP8480881A JPS57200523A JP S57200523 A JPS57200523 A JP S57200523A JP 8480881 A JP8480881 A JP 8480881A JP 8480881 A JP8480881 A JP 8480881A JP S57200523 A JPS57200523 A JP S57200523A
- Authority
- JP
- Japan
- Prior art keywords
- slide surface
- cam
- torch
- melt
- moved
- 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.)
- Granted
Links
- 229910000805 Pig iron Inorganic materials 0.000 title abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910000734 martensite Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
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)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE:To form a slide surface having a constant melting depth and width and uniform anti-wear strength by heating and melting a cam slide surface while a torch is moved at a definite angle always to said cam slide surface to form a white pig iron hardened layer. CONSTITUTION:A cam 4 is positioned so as to make the B-C slide surface of the connecting part 7 thereof horizontal and an electrode 8 is opposed to said surface vertically. A motor 2 is driven and a torch 1 is moved to a C point from an A point by a drive apparatus 3 as well as simultaneously vibrated to vertical directions in a figure to heat and melt the A-C slide surface of the cam. When the torch 1 reaches the C point, the movement of the torch 1 is stopped and the cam 4 is rotated to similarily heat and melt the C-D slide surface thereof. In the next stage, the cam is stopped so as to make the D-E space of the connecting part 7' thereof and the torch 1 is moved to a righthand direction to similarily heat and melt the D-F slide surface thereof. After the cam 4 is allowed to be cooled naturally, it is cooled by water to form a chill layer alpha having a circular cross area on the slide surface between A-F and a martensite layer beta therearound. In the case of the cam for an internal combustion engine, it is unnecessary to form the layer alpha to a base circular part 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8480881A JPS57200523A (en) | 1981-06-01 | 1981-06-01 | Method for hardening white pig iron on cam slide surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8480881A JPS57200523A (en) | 1981-06-01 | 1981-06-01 | Method for hardening white pig iron on cam slide surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57200523A true JPS57200523A (en) | 1982-12-08 |
| JPS6127447B2 JPS6127447B2 (en) | 1986-06-25 |
Family
ID=13841013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8480881A Granted JPS57200523A (en) | 1981-06-01 | 1981-06-01 | Method for hardening white pig iron on cam slide surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57200523A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59150016A (en) * | 1983-02-15 | 1984-08-28 | Nippon Piston Ring Co Ltd | Sliding member for internal-combustion engine |
| EP0161624A2 (en) * | 1984-05-07 | 1985-11-21 | Toyota Jidosha Kabushiki Kaisha | Method of producing a camshaft |
| JPS60258420A (en) * | 1984-05-21 | 1985-12-20 | Honda Motor Co Ltd | Remelting and hardening treatment |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10838556B2 (en) | 2019-04-05 | 2020-11-17 | Apple Inc. | Sensing system for detection of light incident to a light emitting layer of an electronic device display |
| US11611058B2 (en) * | 2019-09-24 | 2023-03-21 | Apple Inc. | Devices and systems for under display image sensor |
| US11527582B1 (en) | 2019-09-24 | 2022-12-13 | Apple Inc. | Display stack with integrated photodetectors |
| US11592873B2 (en) | 2020-02-14 | 2023-02-28 | Apple Inc. | Display stack topologies for under-display optical transceivers |
| US11327237B2 (en) | 2020-06-18 | 2022-05-10 | Apple Inc. | Display-adjacent optical emission or reception using optical fibers |
| US11487859B2 (en) | 2020-07-31 | 2022-11-01 | Apple Inc. | Behind display polarized optical transceiver |
-
1981
- 1981-06-01 JP JP8480881A patent/JPS57200523A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59150016A (en) * | 1983-02-15 | 1984-08-28 | Nippon Piston Ring Co Ltd | Sliding member for internal-combustion engine |
| EP0161624A2 (en) * | 1984-05-07 | 1985-11-21 | Toyota Jidosha Kabushiki Kaisha | Method of producing a camshaft |
| JPS60258420A (en) * | 1984-05-21 | 1985-12-20 | Honda Motor Co Ltd | Remelting and hardening treatment |
| JPS6345446B2 (en) * | 1984-05-21 | 1988-09-09 | Honda Motor Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6127447B2 (en) | 1986-06-25 |
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