WO2006001068A1 - 焼入方法およびこれに用いられる装置 - Google Patents
焼入方法およびこれに用いられる装置 Download PDFInfo
- Publication number
- WO2006001068A1 WO2006001068A1 PCT/JP2004/009223 JP2004009223W WO2006001068A1 WO 2006001068 A1 WO2006001068 A1 WO 2006001068A1 JP 2004009223 W JP2004009223 W JP 2004009223W WO 2006001068 A1 WO2006001068 A1 WO 2006001068A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- quenching
- hrc
- oil
- vertical
- treated product
- Prior art date
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
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
Definitions
- the present invention relates to a quenching method for performing ash quenching on iron parts such as gears and bear ungs, and a background technology related to quenching equipment used therefor
- quenching devices that include an oil tank containing a coolant and a stirrer that stirs the coolant so that an upward flow is generated in the coolant in the oil tank.
- the coolant is selected according to the mass, shape, hardenability, etc. of the steel parts, and the appropriate oil type is selected and the appropriate oil temperature is selected. The cooling capacity is adjusted.
- the cooling rate varies between the sun and the shade on the opposite side of the treated product, and the carburizing quality is the result. (Surface hardness, effective hardened layer depth, internal hardness, etc.) and heat treatment strain variation.
- the processed products are processed as a batch by using a tray, jig, etc. Therefore, in addition to the processed product itself, the flow of the coolant is blocked by the tray, jig, etc., resulting in fluctuations in the flow velocity even within the tray, and this is also the cause of variations in heat treatment strain. It was.
- the 'invention' solves all of the above-mentioned problems, and 'a quenching method that can reduce the variation in the cooling rate of the coolant for the treated product, and suppress the variation in carburizing quality and heat treatment strain.
- the purpose is to provide a 'quenching' device used for this purpose o Disclosure of the invention
- the quenching oil in the oil tank is stirred to equalize the oil temperature, and then the stirring is stopped, and the treated product is immersed in the quenching oil in the oil tank.
- the processed product is swung vertically and horizontally or horizontally with a period of seconds.
- the flow speed of the quenching oil to the treated product can be made uniform by moving the process roll in the quenching oil whose stirring is stopped. If the treated product is immersed in the agitated quenching oil, the cooling rate varies between the sun and the shade on the opposite side of the treated product, but there is no concern in this invention. o Therefore, it is possible to reduce the variation in the cooling rate of the coolant with respect to the treated product, and to suppress variations in carburizing quality and heat treatment strain. Moreover, since the oscillation cycle is 2 to 10 seconds, optimal cooling can be achieved.
- the quenching oil in the oil tank is stirred to equalize the oil temperature, and then the stirring is stopped, and the treated product is immersed in the quenching oil in the oil tank. If the size in the horizontal direction is larger than the size in the vertical direction of the product, the processed product is swung in the vertical direction and processed.
- the treated product is swung horizontally.
- the vertical or horizontal swing direction is selected depending on the shape of the processed product, so that optimum quenching can be performed.
- the quenching apparatus immerses the treated product in the quenching oil in the oil tank and the vertical rocking means for swinging the treated product in the vertical direction while the treated product is immersed in the quenching oil in the oil bath.
- either one of the vertical rocking means and the horizontal rocking means is used to quench the oil.
- the flow rate of the quenching oil to the treated product can be made uniform. Therefore, it is possible to reduce the variation in the cooling rate of the coolant with respect to the treated product, and to suppress variations in carburizing quality and heat treatment strain.
- the vertical swing means has a pair of elevating rails that straddle the ladle loaded with the processed products, and a fluid pressure series that elevates and lowers the elevating rails.
- the lateral rocking means is equipped with a roller row that is made up of a plurality of parallel rollers and receives the wrinkle, and a pushing mechanism that pushes the tray received by the roller row. With this mechanism, the processed product can be swung horizontally.
- the push mechanism moves the tip of the piston rod to the m of the tray.
- the fluid pressure cylinder arranged so as to be in contact with the spring and the spring which supports the other end of the clay by inertia are provided, the operating speed and speed of the piston load are reduced. It is possible to easily change the horizontal oscillation cycle and the stroke by changing the shaft.
- a gap through which the lifting rail passes is formed between adjacent rollers in the roller train.
- Fig. 1 is an explanatory diagram of a processed product in a flat shape
- Fig. 2 is an explanatory diagram of a processed product
- Fig. 3 is a vertical longitudinal sectional view of a quenching device.
- Figure 4 shows a horizontal cross-sectional view of the quenching equipment
- Fig. 5 is a cycle diagram of rocking quenching.
- Fig. 6 is a table showing the relationship between the internal hardness of the hardened products and the dynamic speed.
- Fig. 7 is a table showing the relationship between the fluctuation cycle of the hardened product and the variation in internal hardness.
- Fig. 8 is a table showing the results of gear quenching based on the difference in packing style.
- FIGS. 1 and 2 show the packing state of a ring-shaped processed product S such as a gear.
- a plurality of vertical rod-shaped jigs J 1 are erected on the upper surface of the tray T 1 (also in a direction perpendicular to the paper surface).
- Each jig J 1 is covered with a plurality of processed products S at predetermined intervals. This is called flat packaging.
- a pair of posts P is set up at both ends of the top surface of the tray T 2.
- a horizontal bar-like jig J 2 is held between the posts P with a vertical gap (on the paper surface). There are also orthogonal directions).
- Each jig J 2 covered with a plurality of processed products S at a predetermined interval is called a sword rack.
- the thickness of the processed product S that is, the processing roll
- the outer diameter of the processed product S that is, the horizontal direction of the processed product s (the direction such as left and right or front and rear) is larger than the size of S in the vertical direction (vertical direction).
- the size relationship is the opposite of that of a flat figure.
- the treated product S in both packages will be referred to as the workpiece W including the tray T 1 T 2 and the jig J 1 J 2 etc.
- the quenching device Oil tank 11 storing quenching oil 0, stirrer 12 that stirs quenching oil 0 so that an upward flow occurs in quenching oil o in oil tank 11, and quenching oil in oil tank 11
- the vertical rocking means 13 that rocks the workpiece W in the vertical direction and the workpiece W in the horizontal direction with the cake W immersed in the quenching oil O in the oil tank 11
- It is provided with a horizontal rocking means 14 (illustrated as the left-right direction in FIGS. 3 and 4) for rocking in the direction.
- the oil tank 11 is divided into a left processing chamber 22 and a right stirring chamber 23 by a vertical partition wall 21.
- An entrance 24 is provided in the upper left side wall of the processing chamber 22.
- the stirrer 12 includes a vertical rotating shaft 31 extending vertically through the liquid level of the quenching oil ⁇ in the stirring chamber 23, a motor 32 connected to the upper end of the rotating shaft 31, and a lower end of the rotating shaft 31. And a rectifying duct 34 provided so as to penetrate through the partition wall 21.
- the rectifying duct 34 extends downward from the position surrounding the screw 33 and is opened upward near the center of the bottom surface of the processing chamber 22.
- the rotation of the screw 33 causes a downward flow of the quenching oil ⁇ in the stirring chamber 23, but this is caused to flow upward in the processing chamber 22 by the rectifying duct 34.
- the vertical rocking means 13 includes a vertical guide provided on the rear side wall of the oil tank 11, a rail 41, a lifting body 42 that can be lifted along the guide rail 41, and a forward projection from the lifting body 42.
- a vertically swinging hydraulic cylinder 44 having a pair of left and right lifting rails 43 extending in parallel to each other and a piston rod 'connected to the lifting body 42 and mounted vertically downward on the top wall of the oil tank 11. And.
- the lateral rocking means 14 includes a pair of front and rear rollers composed of a plurality of parallel rollers 51 extending in parallel to each other so as to intersect with the lifting path of the lifting rail 43.
- ⁇ Laser row 52 and the tip of the piston rod face the left end of roller row 52 and penetrate the left side wall of oil tank 11.
- the roller 51 that intersects with the lifting path of the lifting rail 43 has a gap C through which the lifting rail 43 can be passed between adjacent members.
- Yamagata W is a heating chamber (not shown) where ashing, ash nitriding, etc. are performed as necessary.
- the quenching oil O is kept at a temperature suitable for the steel grade to be stirred and processed by the stirrer 12. Stirring is stopped after the oil temperature is equalized.
- the agitation time required to equalize the oil temperature should be experimentally determined in advance.
- the lift rail 43 is kept waiting at the upper limit of its lift stroke.
- the workpiece W carried into the processing chamber 22 by a conveying means advances the piston rod of the vertical rocking hydraulic cylinder 44 that is placed on the lifting rail 43. Then, the lifting rail 43 is lowered.
- the cake W is immersed in the quenching oil O.
- the vertical and horizontal swing directions are selected.
- the swinging direction is vertical.
- the horizontal direction is selected as the swing direction.
- W can be received across both roller rows 52.
- the piston rod of the fluid pressure cylinder 53 for lateral oscillation is expanded and contracted. Then, the spring W is expanded and contracted, and the hook W is swung in the lateral direction. After this oscillation has passed for a predetermined time, the expansion and contraction of the piston rod of the lateral oscillation fluid pressure cylinder 53 is stopped, and the piston rod is retracted.
- FIG. 5 shows the cycle diagram of the oscillating quenching.
- Fig. 5 shows the case of vertical oscillation, but the horizontal oscillation field D ⁇
- the top and bottom in Fig. 5 should be read as left and right O o
- Fig. 6 shows the relationship between the rocking speed V and the variation in the hardness of the test piece ⁇ piece. The higher the degree V, the harder the test piece ⁇ piece internal hardness ⁇
- Figure 7 shows the relationship between the oscillation period ⁇ and the test ⁇ piece internal hardness variation. From Fig. 7, it can be seen that the oscillation period T is preferably 10 seconds or less o J>. From the figure, it is preferable that the oscillation period ⁇ is 2 seconds or more.
- Fig. 8 shows an example in which swing quenching is applied to gear parts.
- the materials of the gear parts are SC r and SCM. O Both of the two types of gears are suitable for lateral swing when the load is a sword and the load is flat. In this case, it can be seen that longitudinal oscillation is preferable.
- the swing direction is described as vertical or horizontal.
- the lateral direction is not limited to the left and right as shown in FIGS. 3 and 4, but may be the front and back, or may be the rear and the middle of the left and right.
- the quenching method according to the present invention is suitable for quenching, for example, for carburizing and quenching steel parts such as gears and bearings.
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- 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)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004800353968A CN100532586C (zh) | 2004-06-23 | 2004-06-23 | 淬火方法及使用该方法的装置 |
JP2006527611A JP4577310B2 (ja) | 2004-06-23 | 2004-06-23 | 焼入方法およびこれに用いられる装置 |
PCT/JP2004/009223 WO2006001068A1 (ja) | 2004-06-23 | 2004-06-23 | 焼入方法およびこれに用いられる装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/009223 WO2006001068A1 (ja) | 2004-06-23 | 2004-06-23 | 焼入方法およびこれに用いられる装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006001068A1 true WO2006001068A1 (ja) | 2006-01-05 |
Family
ID=35781620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/009223 WO2006001068A1 (ja) | 2004-06-23 | 2004-06-23 | 焼入方法およびこれに用いられる装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4577310B2 (ja) |
CN (1) | CN100532586C (ja) |
WO (1) | WO2006001068A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010007146A (ja) * | 2008-06-27 | 2010-01-14 | Jtekt Corp | 焼入装置、被処理物の焼入方法、及び、これらに用いられる載置台 |
KR101498357B1 (ko) * | 2013-04-15 | 2015-03-03 | 김승현 | 불기어의 열처리용 지그 |
KR20150104802A (ko) * | 2014-03-06 | 2015-09-16 | 주식회사 대경열처리 | 피가공물의 냉각장치 |
CN105018693A (zh) * | 2015-07-04 | 2015-11-04 | 安徽旭鸿热处理有限公司 | 一种工件油淬工艺处理装置 |
CN112391515A (zh) * | 2020-10-29 | 2021-02-23 | 明礼香 | 一种适用于铝型材硬度强化的油冷快速淬火设备 |
CN118064687A (zh) * | 2024-04-24 | 2024-05-24 | 三明安德凯重工科技有限公司 | 一种锻件生产用油淬设备 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101857455B1 (ko) * | 2017-10-31 | 2018-05-15 | (주)청호열처리 | 공업로용 열회수형 냉각장치 |
CN112522483B (zh) * | 2020-11-27 | 2022-11-08 | 上海程运模具科技有限公司 | 一种防止烫伤无污染淬火机 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5729525A (en) * | 1980-07-25 | 1982-02-17 | Hitachi Zosen Corp | Treating method for metal |
JPS6328822A (ja) * | 1986-07-23 | 1988-02-06 | Daido Steel Co Ltd | 焼入方法 |
EP0805218A1 (fr) * | 1996-05-03 | 1997-11-05 | Patherm SA | Station d'égouttage et installation de traitement thermique comportant une telle station d'égouttage |
JP2001064722A (ja) * | 1999-08-27 | 2001-03-13 | Dowa Mining Co Ltd | 鋼の焼入れ方法及びその装置 |
JP2003041319A (ja) * | 2001-08-01 | 2003-02-13 | Japan Servo Co Ltd | 局部加熱による表面硬化手段とその装置 |
-
2004
- 2004-06-23 WO PCT/JP2004/009223 patent/WO2006001068A1/ja active Application Filing
- 2004-06-23 CN CNB2004800353968A patent/CN100532586C/zh not_active Expired - Fee Related
- 2004-06-23 JP JP2006527611A patent/JP4577310B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5729525A (en) * | 1980-07-25 | 1982-02-17 | Hitachi Zosen Corp | Treating method for metal |
JPS6328822A (ja) * | 1986-07-23 | 1988-02-06 | Daido Steel Co Ltd | 焼入方法 |
EP0805218A1 (fr) * | 1996-05-03 | 1997-11-05 | Patherm SA | Station d'égouttage et installation de traitement thermique comportant une telle station d'égouttage |
JP2001064722A (ja) * | 1999-08-27 | 2001-03-13 | Dowa Mining Co Ltd | 鋼の焼入れ方法及びその装置 |
JP2003041319A (ja) * | 2001-08-01 | 2003-02-13 | Japan Servo Co Ltd | 局部加熱による表面硬化手段とその装置 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010007146A (ja) * | 2008-06-27 | 2010-01-14 | Jtekt Corp | 焼入装置、被処理物の焼入方法、及び、これらに用いられる載置台 |
KR101498357B1 (ko) * | 2013-04-15 | 2015-03-03 | 김승현 | 불기어의 열처리용 지그 |
KR20150104802A (ko) * | 2014-03-06 | 2015-09-16 | 주식회사 대경열처리 | 피가공물의 냉각장치 |
KR101576802B1 (ko) | 2014-03-06 | 2015-12-21 | 주식회사 대경열처리 | 피가공물의 냉각장치 |
CN105018693A (zh) * | 2015-07-04 | 2015-11-04 | 安徽旭鸿热处理有限公司 | 一种工件油淬工艺处理装置 |
CN112391515A (zh) * | 2020-10-29 | 2021-02-23 | 明礼香 | 一种适用于铝型材硬度强化的油冷快速淬火设备 |
CN118064687A (zh) * | 2024-04-24 | 2024-05-24 | 三明安德凯重工科技有限公司 | 一种锻件生产用油淬设备 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2006001068A1 (ja) | 2008-04-17 |
CN100532586C (zh) | 2009-08-26 |
CN1886523A (zh) | 2006-12-27 |
JP4577310B2 (ja) | 2010-11-10 |
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