CN110016545B - Method for determining matched size of quenching inductor special for flange parts - Google Patents
Method for determining matched size of quenching inductor special for flange parts Download PDFInfo
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- CN110016545B CN110016545B CN201910425214.6A CN201910425214A CN110016545B CN 110016545 B CN110016545 B CN 110016545B CN 201910425214 A CN201910425214 A CN 201910425214A CN 110016545 B CN110016545 B CN 110016545B
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- induction coil
- induction
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- flange
- inner diameter
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- 230000000171 quenching effect Effects 0.000 title claims abstract description 72
- 238000010791 quenching Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000006698 induction Effects 0.000 claims abstract description 129
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 230000007704 transition Effects 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 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
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- 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
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- 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
- C21D11/00—Process control or regulation for heat treatments
-
- 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
- C21D9/30—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for crankshafts; for camshafts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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)
- General Induction Heating (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a method for determining the matched size of a special quenching inductor for flange parts, which comprises a special quenching inductor for flange parts, wherein the special quenching inductor comprises a lower induction coil, an upper induction coil, a transition pipe and a connecting pipe, all sections of square copper pipes are connected into a whole in a lap welding way to form a spiral annular induction coil, the sizes of the inner diameter of the lower induction coil, the inner diameter of the upper induction coil and the height of the induction coil are determined by scientifically and reasonably matching the sizes of the upper arc radius, the arc length, the height of the induction coil and the like of the special quenching inductor, the problems that the sharp angle effect and the induction distance of the flange parts are difficult to control during induction quenching are effectively avoided, the quenching uniformity of a quenching area is improved, the induction quenching quality is ensured, the technological requirements of high hardness, wear resistance and the like of the flange parts are met, and the quenching inductor is easy to manufacture and convenient to use.
Description
Technical Field
The invention belongs to the technical field of induction heat treatment, and particularly relates to a method for determining the matched size of a quenching inductor special for the outer circle of a boss and the end face of a flange part.
Background
The flange of the transmission shaft is an important part of an automobile, and is subjected to huge friction force in the working process, the strength of the transmission shaft can be enhanced by utilizing the flange, in addition, the flange shaft can vibrate, the position and the size of the flange can balance the vibration or the transmission effect of the piston. Therefore, the end face of the flange and the outer circular surface of the flange need to have higher hardness, wear resistance and service life, and induction quenching treatment is carried out on the end face and the outer circular surface of the flange by adopting an induction heat treatment technology. The induction hardening includes: (1) the whole body does not need to be heated, and the electric energy consumption is low; (2) the heating speed is high; (3) the hardening layer is easy to control; (4) the hardness is easy to ensure; (5) short heating time, high efficiency and the like. But induction hardening also has the following problems:
1. the sharp corner effect is difficult to avoid: when induction quenching is implemented, sharp angle effect is easy to occur on the edge of the outer circle and the edge of the end face formed by chamfering between the outer circle of the flange and the end face, current at the sharp angle is easy to be dense, overheating or overburning is generated, and even quenching cracks are generated.
2. The sensing distance is difficult to control: in actual induction quenching, the induction distance of an inclined plane formed by the chamfer between the outer circle of the flange and the end face is not easy to control, the quenching effect at the chamfer is affected, and the quenching uniformity of a quenching area is affected.
In order to solve the problems, save time and labor and improve the efficacy, a method for determining the matched size of the special quenching sensor for flange parts is needed.
Disclosure of Invention
The invention aims to provide a method for determining the matched size of a special quenching inductor for flange parts, which is used for determining scientific and reasonable matched size by matching the sizes of the upper and lower sections of arc radiuses, arc lengths, the height of an induction coil and the like, so that the problems of sharp angle effect and difficult control of the induction distance generated during induction quenching of the flange parts can be avoided, the quenching uniformity of a quenching area is improved, and the induction quenching quality can be controlled more effectively.
The aim of the invention can be achieved by adopting the following technical scheme: the method for determining the matched size of the special quenching inductor for the flange parts comprises the special quenching inductor for the flange parts, wherein the special quenching inductor comprises a sectional type induction coil and a U-shaped tubular magnetizer, the sectional type induction coil is made of square copper pipes and comprises a lower induction coil, a transition pipe, an upper induction coil and a connecting pipe, all the sections of square copper pipes are connected into a whole in a lap joint welding mode to form a spiral annular induction coil, and the U-shaped tubular magnetizer is arranged on the upper induction coil, the lower induction coil and the transition pipe and is adhered together through high-temperature resistant glue; the special quenching inductor comprises the following specific dimensions of the inner diameter of the lower inductor, the inner diameter of the upper inductor and the height of the inductor, and the specific method for determining the matching dimensions comprises the following steps:
1) The inner diameter of the lower induction coil is determined by the matched size: the outer diameter of the flange part to be subjected to induction quenching and the outer induction space required by the induction quenching process are determined according to the following formula:
Φ1’＝ΦD+λ1×2；
wherein: phi 1' — -inner diameter of lower coil
Phi D-diameter of flange outer circle
λ1-distance between outer circle of flange and lower induction coil
2) The inner diameter of the upper induction coil is determined by the matched size: the inner diameter matching size of the upper induction coil is determined according to the size of the inner hole diameter on the end surface of the flange type part to be subjected to induction quenching and the inner diameter induction spacing size required by the induction quenching process, namely the inner diameter matching size of the upper induction coil is determined according to the following formula:
Φ2’＝Φd-λ2×2；
wherein: phi 2' — inner diameter of upper coil
Phi d-diameter of inner bore on end face of flange
λ2-inner diameter distance of inner hole diameter on flange end surface from upper induction coil
3) The height H' of the induction coil is determined by matching the size: according to the size condition of the height H of the flange excircle of the flange type part needing to be subjected to induction quenching, the adopted square tube height a, the end face induction spacing lambda 3 and the excircle vertical spacing lambda 4 required by the induction quenching process are determined, namely the matched size of the induction coil height H' is determined according to the following formula:
H’＝H+a+λ3+λ4；
wherein: h-height of flange outer circle
a-height of the square tube of the induction coil
λ3-distance between end face of flange to be induction quenched and induction coil
λ4-vertical distance of flange outer circle bottom from induction coil
The lower induction coil is provided with a section of square copper pipe which is arranged into an arc, the transition pipe is provided with a spiral square copper pipe, the connecting pipe is provided with an L-shaped square copper pipe, the upper induction coil is provided with a section of square copper pipe which is arranged between the transition pipe and the connecting pipe.
The required size of the special quenching sensor for the flange parts is completely determined.
The beneficial effects of the invention are as follows: by adopting the calculation of the matched size, the reasonable matched size such as the radius, the arc length and the height of the upper and lower sections of the arc of the induction coil required by the quenching inductor is determined, so that the quenching inductor is easy to manufacture and convenient to match, the induction quenching quality of flange parts can be more effectively controlled, the technological requirements of high hardness, wear resistance and the like of the flange parts are met, and the service life of the flange parts is prolonged.
Drawings
FIG. 1 is a front view of the structural dimensions of the present invention;
FIG. 2 is a top plan view of the structural dimensions of the present invention;
FIG. 3 is a dimensional view of an induction coil structure according to the present invention;
in the figure: 1. the quenching device comprises a special quenching sensor 2, flange parts 3, a lower induction coil 4, a transition pipe 5, an upper induction coil 6 and a connecting pipe.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description:
as shown in fig. 1, 2 and 3, the method for determining the matched size of the special quenching inductor for flange parts comprises a special quenching inductor 1 for flange parts, wherein the special quenching inductor 1 comprises a sectional type induction coil and a U-shaped tubular magnetizer, the sectional type induction coil is made of square copper tubes and comprises a lower induction coil 3, a transition tube 4, an upper induction coil 5 and a connecting tube 6, all the sections of square copper tubes are connected into a whole in a lap joint welding way to form a spiral annular induction coil, and the U-shaped tubular magnetizer is arranged on the upper induction coil 5, the lower induction coil 3 and the transition tube 4 and is adhered together through high-temperature resistant glue; the lower induction coil 3 is provided with a section of square copper pipe which is arranged into an arc, the transition pipe 4 is provided with a spiral square copper pipe, the connecting pipe 6 is provided with an L-shaped square copper pipe, the upper induction coil 5 is provided with a section of square copper pipe which is arranged between the transition pipe 4 and the connecting pipe 6.
The special quenching inductor 1 has the following specific dimensions including the inner diameter phi 1' of the lower inductor coil, the inner diameter phi 2' of the upper inductor coil and the height H ' of the inductor coil, and the specific method for determining the matched dimensions is as follows:
1) The inner diameter phi 1' of the lower induction coil 3 is determined by matching with the dimension: the dimension is determined according to the dimension of the diameter phi D of the outer circle of the flange part 2 which is required to be subjected to induction quenching and the dimension of the outer circle induction space lambda 1 required by the induction quenching process, namely the matched dimension of the inner diameter phi 1' of the lower induction coil 3, and the dimension is determined according to the following formula:
Φ1’＝ΦD+λ1×2；
2) The inner diameter phi 2' of the upper induction coil 5 is matched with the size determination: the dimension is determined according to the dimension of the diameter phi d of the inner hole on the end surface of the flange part 2 to be subjected to induction quenching and the dimension of the inner diameter induction space lambda 2 required by the induction quenching process, namely the matched dimension of the inner diameter phi 2' of the upper induction coil 5, and the dimension is determined according to the following formula:
Φ2’＝Φd-λ2×2；
3) The height H' of the induction coil is determined by matching the size: the dimension is determined according to the dimension of the height H of the flange outer circle of the flange part 2 needing to be subjected to induction quenching, the employed height a of the square tube of the induction coil, the spacing lambda 3 of the flange end face from the induction coil and the vertical spacing lambda 4 of the flange outer circle bottom from the induction coil required by the induction quenching process, namely the matched dimension of the height H' of the induction coil is determined according to the following formula:
H’＝H+a+λ3+λ4；
next, an embodiment of a method for determining a dimension of a quenching sensor dedicated for flange parts is specifically described as follows:
the quenching requirements of the flange part 2 of a certain enterprise are as follows:
hardness: 50-55HRC, metallographic structure: and 7-8 grades of martensite, namely (in the two-dot chain line of figure 1), the hardening depth of the high-frequency quenching zone is 1.0-2.0mm, and the radial hardening zone of the flange end surface is 4-5mm in order to avoid spline quenching cracks.
In the embodiment, the outer circle diameter phi D of the flange part 2 is 62mm, the inner hole diameter phi D is 44mm, the flange outer circle height H is 24mm, the interval lambda 1 between the flange outer circle and the lower induction coil is 3mm, the inner hole diameter on the flange end face is 1mm from the inner diameter lambda 2 of the upper induction coil, the interval lambda 3 between the flange end face to be subjected to induction quenching is 3mm from the induction coil, the vertical interval lambda 4 between the flange outer circle bottom and the induction coil is 2mm, and the induction coil square tube height a is 12mm;
according to the above situation, the method for determining the matched size of the quenching sensor comprises the following steps:
1) The matched size of the inner diameter phi 1' of the lower induction coil 3 is determined according to the following formula:
Φ1’＝ΦD+λ1×2＝62+3×2＝68mm
2) The matched size of the inner diameter phi 2' of the upper induction coil 5 is determined according to the following formula:
Φ2’＝Φd-λ2×2＝44-1×2＝42mm
3) The height H' of the induction coil is determined according to the following formula:
H’＝H+a+λ3+λ4＝24+12+3+2＝41mm
the size of the quenching sensor special for the flange parts is determined, and then the physical manufacturing of the quenching sensor can be further perfected according to the size of the quenching sensor.
The invention reasonably calculates the radius, the arc length, the height and other dimensions of the upper and lower sections of the induction coil, thereby avoiding the problems of sharp angle effect and difficult control of induction distance generated during induction quenching of the flange parts, more effectively controlling the quality of induction quenching and ensuring the technological requirements of the flange parts.
Claims (2)
1. A method for determining the matched size of a quenching sensor special for flange parts is characterized by comprising the following steps: the special quenching inductor comprises a sectional type induction coil and a U-shaped tubular magnetizer, wherein the sectional type induction coil is made of square copper pipes and comprises a lower induction coil, a transition pipe, an upper induction coil and a connecting pipe, all the sections of square copper pipes are connected into a whole in a lap joint welding way to form a spiral annular induction coil, and the U-shaped tubular magnetizer is arranged on the upper induction coil, the lower induction coil and the transition pipe and is adhered together through high-temperature resistant glue; the special quenching inductor comprises the following specific dimensions of the inner diameter of the lower induction coil, the inner diameter of the upper induction coil and the height of the induction coil, and the specific method for determining the matching dimensions comprises the following steps:
1) The inner diameter of the lower induction coil is determined by the matched size: the outer diameter of the flange part to be subjected to induction quenching and the outer induction space required by the induction quenching process are determined according to the following formula:
Φ1’＝ΦD+λ1×2；
wherein: phi 1' — -inner diameter of lower coil
Phi D-diameter of flange outer circle
λ1-distance between outer circle of flange and lower induction coil
2) The inner diameter of the upper induction coil is determined by the matched size: the inner diameter matching size of the upper induction coil is determined according to the size of the inner hole diameter on the end surface of the flange type part to be subjected to induction quenching and the inner diameter induction spacing size required by the induction quenching process, namely the inner diameter matching size of the upper induction coil is determined according to the following formula:
Φ2’＝Φd-λ2×2；
wherein: phi 2' — inner diameter of upper coil
Phi d-diameter of inner bore on end face of flange
λ2-inner diameter distance of inner hole diameter on flange end surface from upper induction coil
3) The height H' of the induction coil is determined by matching the size: according to the size condition of the height H of the flange excircle of the flange type part needing to be subjected to induction quenching, the adopted square tube height a, the end face induction spacing lambda 3 and the excircle vertical spacing lambda 4 required by the induction quenching process are determined, namely the matched size of the induction coil height H' is determined according to the following formula:
H’＝H+a+λ3+λ4；
wherein: h-height of flange outer circle
a-height of the square tube of the induction coil
λ3-distance between end face of flange to be induction quenched and induction coil
λ4-the vertical distance of the flange outer circular bottom from the induction coil.
2. The method for determining the fit size of the quenching sensor special for flange parts according to claim 1, wherein the method comprises the following steps: the lower induction coil is provided with a section of square copper pipe which is arranged into an arc, the transition pipe is provided with a spiral square copper pipe, the connecting pipe is provided with an L-shaped square copper pipe, the upper induction coil is provided with a section of square copper pipe which is arranged between the transition pipe and the connecting pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425214.6A CN110016545B (en) | 2019-05-21 | 2019-05-21 | Method for determining matched size of quenching inductor special for flange parts |
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| CN201910425214.6A CN110016545B (en) | 2019-05-21 | 2019-05-21 | Method for determining matched size of quenching inductor special for flange parts |
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| CN110016545A CN110016545A (en) | 2019-07-16 |
| CN110016545B true CN110016545B (en) | 2024-02-13 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4675488A (en) * | 1986-06-25 | 1987-06-23 | Tocco, Inc. | Method for hardening gears by induction heating |
| JPH08143947A (en) * | 1994-11-25 | 1996-06-04 | Fuji Denshi Kogyo Kk | Coil for quenching end surface of flange surface |
| CN102181615A (en) * | 2011-05-18 | 2011-09-14 | 柳州中驰成达机械锻造有限公司 | Automotive half shaft quenching process method and quenching induction coil |
| CN105331792A (en) * | 2015-10-21 | 2016-02-17 | 第一拖拉机股份有限公司 | Quenching inductor for low-speed large-torque drive wheel axle and size confirmation method |
-
2019
- 2019-05-21 CN CN201910425214.6A patent/CN110016545B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4675488A (en) * | 1986-06-25 | 1987-06-23 | Tocco, Inc. | Method for hardening gears by induction heating |
| JPH08143947A (en) * | 1994-11-25 | 1996-06-04 | Fuji Denshi Kogyo Kk | Coil for quenching end surface of flange surface |
| CN102181615A (en) * | 2011-05-18 | 2011-09-14 | 柳州中驰成达机械锻造有限公司 | Automotive half shaft quenching process method and quenching induction coil |
| CN105331792A (en) * | 2015-10-21 | 2016-02-17 | 第一拖拉机股份有限公司 | Quenching inductor for low-speed large-torque drive wheel axle and size confirmation method |
Non-Patent Citations (1)
| Title |
|---|
| 用于铲刀连接座凹球面的淬火感应器及配用尺寸确定方法;丁芳;赵电昭;段华荣;范巧变;高宗芳;孔春花;刘文化;;拖拉机与农用运输车(第06期);全文 * |
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