JPS5635725A - Hardening device of gear - Google Patents
Hardening device of gearInfo
- Publication number
- JPS5635725A JPS5635725A JP11140079A JP11140079A JPS5635725A JP S5635725 A JPS5635725 A JP S5635725A JP 11140079 A JP11140079 A JP 11140079A JP 11140079 A JP11140079 A JP 11140079A JP S5635725 A JPS5635725 A JP S5635725A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- hardening
- cooling oil
- state
- tension mandrel
- 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
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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
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 make thermal shrinkage uniform and decrease the strain owing to thermal deformation by expanding a tension mandrel and abutting the same on the inside circumferential surface of the central shaft hole of a gear and hardening the gear in the state that it is held pressed. CONSTITUTION:A tension mandrel 15 is inserted into the central shaft hole 16' of a gear 16 in a red hot state and is placed on a retainer table 10. As a rod 26 is lowered, a holding cover 36, pressing member 32, upper die 33 and gear pressing means 25 lower so that a holding cover 36 adheres colsely onto the 2nd table 11 and a cooling passage 14 and a discharge port 38 communicate, thereby forming a tank for cooling oil. At the same time, the tension mandrel 15 is compressed by the upper die 33 and expands until it abuts on a stopper ring 12. Hence, the gear 16 is automatically centered. Next, fluid pressure is supplied to the 2nd chamber 31, then a cylinder 29 lowers and the jaw part 32' of the pressing member 32 presses to the top face of the gear and this completes setting of the gear 16. In this state, cooling oil is flowed to the cooling passage 14 of the 2nd table 11, whereby hardening is accomplished. When the hardening is finished, the cooling oil is discharged from the discharge port 38 via the passage 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11140079A JPS5835575B2 (en) | 1979-08-31 | 1979-08-31 | gear hardening equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11140079A JPS5835575B2 (en) | 1979-08-31 | 1979-08-31 | gear hardening equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5635725A true JPS5635725A (en) | 1981-04-08 |
JPS5835575B2 JPS5835575B2 (en) | 1983-08-03 |
Family
ID=14560185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11140079A Expired JPS5835575B2 (en) | 1979-08-31 | 1979-08-31 | gear hardening equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5835575B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5837124A (en) * | 1981-08-27 | 1983-03-04 | High Frequency Heattreat Co Ltd | Stationary quenching and cooling method of annular body, and its device |
JP2009287085A (en) * | 2008-05-29 | 2009-12-10 | Ihi Corp | Apparatus and method for heat-treatment |
JP2014177689A (en) * | 2013-03-15 | 2014-09-25 | Dowa Thermotech Kk | Plug hardening device |
US11104971B2 (en) | 2016-04-25 | 2021-08-31 | Aisin Aw Industries Co., Ltd. | Mold, mold apparatus, and cooling method for workpiece |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996006194A1 (en) | 1994-08-24 | 1996-02-29 | Nsk Ltd. | Method and apparatus for correction tempering rolling part |
-
1979
- 1979-08-31 JP JP11140079A patent/JPS5835575B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5837124A (en) * | 1981-08-27 | 1983-03-04 | High Frequency Heattreat Co Ltd | Stationary quenching and cooling method of annular body, and its device |
JPH0122327B2 (en) * | 1981-08-27 | 1989-04-26 | Koshuha Netsuren Kk | |
JP2009287085A (en) * | 2008-05-29 | 2009-12-10 | Ihi Corp | Apparatus and method for heat-treatment |
JP2014177689A (en) * | 2013-03-15 | 2014-09-25 | Dowa Thermotech Kk | Plug hardening device |
US11104971B2 (en) | 2016-04-25 | 2021-08-31 | Aisin Aw Industries Co., Ltd. | Mold, mold apparatus, and cooling method for workpiece |
US11499202B2 (en) | 2016-04-25 | 2022-11-15 | Aisin Fukui Corporation | Cooling method for workpiece |
Also Published As
Publication number | Publication date |
---|---|
JPS5835575B2 (en) | 1983-08-03 |
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