CN115232926A - Circumferential local heating assembly for chain pin shaft, quenching device and process - Google Patents

Circumferential local heating assembly for chain pin shaft, quenching device and process Download PDF

Info

Publication number
CN115232926A
CN115232926A CN202210826439.4A CN202210826439A CN115232926A CN 115232926 A CN115232926 A CN 115232926A CN 202210826439 A CN202210826439 A CN 202210826439A CN 115232926 A CN115232926 A CN 115232926A
Authority
CN
China
Prior art keywords
coil
circumferential
pin shaft
mounting
chain pin
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
Application number
CN202210826439.4A
Other languages
Chinese (zh)
Other versions
CN115232926B (en
Inventor
宣成
王胜
舒向东
方超群
吕建东
倪浙龙
金鑫
汪希
汪文高
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Ziqiang Chain Drive Co ltd
Original Assignee
Hangzhou Ziqiang Chain Drive Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou Ziqiang Chain Drive Co ltd filed Critical Hangzhou Ziqiang Chain Drive Co ltd
Priority to CN202210826439.4A priority Critical patent/CN115232926B/en
Publication of CN115232926A publication Critical patent/CN115232926A/en
Application granted granted Critical
Publication of CN115232926B publication Critical patent/CN115232926B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
    • 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
    • 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
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
    • 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
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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
    • C21D2221/00—Treating localised areas of an article
    • 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

Abstract

The invention relates to the field of workpiece heat treatment, and particularly discloses a circumferential local heating assembly for a chain pin shaft, a quenching device and a quenching process. The circumferential local heating assembly comprises a mounting bracket and a heating unit, the mounting bracket comprises a mounting piece, and the mounting piece is provided with an insertion groove; the heating unit comprises a supporting part and a coil mounting part, and the supporting part is connected with the coil mounting part; the coil mounting part comprises an arc-shaped segment; the coil mounting part is provided with an induction coil, and the induction coil extends along the coil mounting part; the supporting part is connected with the mounting part. The circumferential local heating assembly can perform circumferential local heating on the chain pin shaft, so that local quenching hardening is realized, and the requirement of the chain pin shaft on the difference of mechanical properties in different circumferential directions is met.

Description

Circumferential local heating assembly for chain pin shaft, quenching device and process
Technical Field
The invention relates to the field of workpiece heat treatment, in particular to a circumferential local heating assembly, a quenching device and a process for a chain pin shaft.
Background
The chain transmission is a common transmission form in the mechanical field and has the advantages of accurate transmission ratio, reliable work, large transmission power and the like. Chains typically include inner links and chain pins that connect the inner links and transfer loads. Due to the special structure of the key strips, the chain pin shaft is used as one of main bearing parts, so that the chain pin shaft has higher requirements on mechanical performance, particularly under the working condition of frequently bearing impact load.
In order to prolong the service life of the chain, the chain pin shaft needs to be subjected to surface hardening treatment, and the common treatment process is quenching hardening. After the surface hardening treatment, the chain pin shaft has higher static strength and wear resistance, but the brittleness of the chain pin shaft is increased. When the chain pin shaft bears load for a long time, particularly when the chain pin shaft bears impact load frequently, surface cracks are easy to generate on the surface of the chain pin shaft deviating from the bearing direction under the action of bending moment, the overall mechanical performance of the chain pin shaft is greatly weakened, and the overall service life of the chain is shortened.
In order to solve the problems, the applicant designs a partially quenched chain pin shaft, and the wear resistance and rigidity of the surface of the chain pin shaft are considered simultaneously by means of partially quenching the surface of the chain pin shaft. Specifically, as shown in fig. 1, the bearing part 11 on the circumferential surface of the chain pin 1 is subjected to quench hardening treatment to enhance the wear resistance of the bearing surface; the non-bearing part 12 is not quenched, so that the non-bearing surface has better rigidity and can bear larger bending moment.
However, how to perform local quenching treatment on the chain pin shaft is a great difficulty, and especially how to perform circumferential local heating range, the existing heating equipment and the existing heating process are difficult to realize.
Disclosure of Invention
The invention aims to solve the technical problem of providing a circumferential local heating assembly, a quenching device and a process for a chain pin shaft, which can perform circumferential local heating on the chain pin shaft so as to realize local quenching hardening and adapt to the difference requirements of the chain pin shaft on mechanical properties in different directions of the circumferential surface.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a circumferential local heating assembly for a chain pin shaft comprises a mounting bracket and a heating unit, wherein the mounting bracket comprises a mounting piece, and an insertion groove is formed in the mounting piece;
the heating unit comprises a supporting part and a coil mounting part, and the supporting part is connected with the coil mounting part; the coil mounting part is arranged with an opening in the circumferential direction and comprises an open loop, and the coil mounting part comprises an arc-shaped segment arranged in a C shape; the coil mounting part is provided with an induction coil, and the induction coil extends along the coil mounting part;
the supporting part is connected with the mounting part.
The coil mounting part is enclosed into a heating area, when heating treatment is carried out, the chain pin shaft is arranged in the heating space, and the induction coil is electrified to complete the heating operation of the chain pin shaft. The arc-shaped heating space is formed by enclosing the arc-shaped sections in a segmented mode, local heating can be carried out in the circumferential direction of the chain pin shaft, and therefore local quenching hardening is achieved, and the requirement of the chain pin shaft on the difference of mechanical properties in different circumferential directions is met.
Preferably, the number of the supporting parts is two, and the coil mounting part is positioned between the two supporting parts; the mounting part is positioned between the two supporting parts.
Preferably, the mounting pieces correspond to the supporting parts one by one, and an insulating piece is arranged between the two mounting pieces.
Preferably, cooling channels are respectively arranged in the supporting part and the coil mounting part, and the cooling channels in the supporting part are communicated with the cooling channels in the coil mounting part.
When heating, cooling liquid can be poured into the cooling channel, and the heating unit is prevented from being overhigh in temperature.
Preferably, the arcuate section is semi-circular.
Preferably, the two ends of the arc-shaped segment are respectively connected with the straight-line segment, the arc-shaped segment and the straight-line segment are respectively provided with an induction coil, and the induction coils on the arc-shaped segment and the straight-line segment work independently.
Preferably, the length L of the straight line segment and the radius of the arc segment are R, then L: r =0.2 to 0.4.
Different chains have different working modes, different angles of the side bearing parts of the chain pin shafts, and different corresponding angle ranges needing quenching and hardening treatment. When the angle range of the chain pin shaft to be treated, which needs to be subjected to quenching and hardening treatment, is small, the chain pin shaft can be heated only by using the induction coils corresponding to the arc-shaped sections; when the angle range of the chain pin shaft to be treated, which needs to be subjected to quenching and hardening treatment, is large, the induction coils corresponding to the arc-shaped sections and the straight-line sections can be heated simultaneously. The heating demand of different model chain round pin axles can be better adapted to.
Preferably, the number of the coil mounting parts is at least two, and the coil mounting parts are distributed in parallel in the direction of the central line of the arc-shaped segment.
According to the length of the chain pin shaft to be processed, coils on the coil mounting parts with proper number are selected to be electrified, and the heating requirements of chain pin shafts with different lengths can be met.
A circumferential local quenching device for a chain pin shaft comprises a rack, a mounting seat and the circumferential local heating assembly, wherein the circumferential local heating assembly is detachably connected with the rack;
the mounting bracket is connected with the rack, and the relative position of the mounting plate and the rack can be adjusted along the extension direction of the insertion groove; the induction heating member is arranged towards the mounting seat.
A circumferential local quenching process for a chain pin shaft adopts the circumferential local quenching device at least comprises the following steps:
adjusting the relative position of a mounting bracket and a rack;
step two, feeding the chain pin shaft to be processed into the coil mounting part at a specific angle, and adjusting the position of the chain pin shaft relative to the coil mounting part;
step three, electrifying the induction coil, starting to heat the chain pin shaft, and moving out the chain pin shaft after heating for a preset time;
and step four, carrying out subsequent quenching operation.
Drawings
FIG. 1 is a schematic view of a chain pin configuration for use in the circumferential localized heating assembly process of a chain pin according to the present embodiment;
FIG. 2 is a cross-sectional view of a chain pin for use in the circumferential localized heating assembly process of a chain pin of the present embodiment;
FIG. 3 is a schematic view of a first embodiment of a circumferential localized heating assembly for a chain pin of the present invention;
FIG. 4 is an operating condition diagram of the circumferential localized heating assembly for the chain pin of the first embodiment of the present invention;
FIG. 5 is a partial schematic view of a heating unit in the circumferential localized heating assembly for a chain pin of the first embodiment of the present invention;
FIG. 6 is a partial schematic view of a heating unit in a circumferential localized heating assembly for a chain pin of a second embodiment of the present invention;
FIG. 7 is a schematic diagram of a third embodiment of a circumferential localized heating assembly for a chain pin of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example one
As shown in fig. 3-5, a circumferential localized heating assembly for a chain pin includes a mounting bracket 4 and a heating unit 2. Wherein the heating unit 2 comprises a supporting part 22 and a coil mounting part 21, one end of the supporting part 22 is connected with the coil mounting part 21, and the other end is connected with the mounting bracket 4. The coil mounting part 21 is provided with an induction coil, and the induction coil extends along the coil mounting part 21.
Specifically, as shown in fig. 3 to 5, the number of the supporting portions 22 is two, the coil mounting portion 21 is located between the two supporting portions 22, and the mounting member is located between the two supporting portions 22. The mounting pieces correspond to the supporting parts 22 one by one, and the insulating pieces 3 are arranged between the two mounting pieces.
As shown in fig. 3 and 5, the coil mounting portion is circumferentially opened, and the coil mounting portion 21 includes an open loop, and the coil mounting portion includes an arc segment that is "C" shaped. Specifically, the arc-shaped segment 211 is semicircular.
The arcuate segments 211 of the coil mounting portion 21 may enclose an arcuate heating zone 23. When heating treatment is carried out, the chain pin shaft 1 is placed into the heating space from the circumferential opening of the coil mounting part, the induction coil is electrified to complete the heating operation of the chain pin shaft 1, and the length direction of the chain pin shaft 1 is basically parallel to the central line of the arc-shaped section 211 in the heating process. Since the heating section 23 is arc-shaped, the chain pin 1 can be locally heated only in the circumferential direction. And the relative position of the chain pin shaft 1 and the heating unit 2 is reasonably adjusted, so that the angle range of local heating can be adjusted within a certain range.
The form of carrying out axial local heating to the chain round pin axle can realize the local quench hardening of circumference of chain round pin axle to adapt to the difference demand of chain round pin axle to mechanical properties in global different directions.
Furthermore, cooling channels are respectively arranged in the supporting part 22 and the coil mounting part 21, and the cooling channels in the supporting part 22 are communicated with the cooling channels in the coil mounting part 21. When heating is performed, the cooling channel can be filled with cooling liquid, so that the temperature of the heating unit 2 is prevented from being too high.
Further, as shown in fig. 3 and 4, the mounting bracket 4 includes a mounting member, and the mounting member is provided with an insertion groove. The mounting bracket 4 is used for being connected with a matched rack, and the arrangement of the insertion groove can be used for adjusting the position of the heating assembly relative to the rack.
Example two
As shown in fig. 6, the present embodiment is different from the first embodiment in that: the two ends of the arc-shaped segment 211 are respectively connected with a straight segment 212, the arc-shaped segment 211 and the straight segment 212 are respectively provided with an induction coil, and the induction coils on the arc-shaped segment 211 and the straight segment 212 work independently. Specifically, the length L of the straight segment 212 and the radius of the arc segment 211 are R, so that L: r =0.2 to 0.4.
In view of different working modes of different types and models of chains, the angles of the bearing parts on the circumferential surfaces of the pin shafts of the chains are different, and the corresponding angle ranges needing quenching and hardening treatment are also different. When the angle range of the chain pin shaft to be treated, which needs to be subjected to quenching and hardening treatment, is small, the chain pin shaft can be heated only by using the induction coil corresponding to the arc-shaped section 211; when the angle range of the chain pin shaft to be processed, which needs to be subjected to quenching and hardening treatment, is large, the induction coils corresponding to the arc-shaped section 211 and the straight section 212 can be heated simultaneously. Through the selective operation of the arc-shaped section 211 and the straight-line section 212, the circumferential local heating angle adjusting range is larger, and the heating requirements of chain pin shafts of different models can be better met.
EXAMPLE III
As shown in fig. 7, the present embodiment is different from the first embodiment in that: the number of the coil mounting parts 21 is at least two, and the coil mounting parts 21 are distributed in parallel in the direction of the center line along the arc-shaped segment 211. Each coil mounting portion 21 is provided with an induction coil, and the induction coils on the coil mounting portions 21 operate independently.
According to the length of the chain pin shaft to be processed, the induction coils on the coil mounting parts 21 with proper number are selected for induction heating, the length adjustment range of the induction heating of the chain pin shaft is larger, and the heating requirements of the chain pin shafts with different lengths can be met.
Example four
A circumferential local quenching device for a chain pin shaft comprises a rack, a mounting seat and a circumferential local heating assembly in any one of the first embodiment to the third embodiment, wherein the circumferential local heating assembly is detachably connected with the rack. The mounting bracket 4 is connected with the frame, and the relative position of the mounting plate and the frame can be adjusted along the extending direction of the insertion groove. The induction heating element is arranged towards the mounting seat. The mounting seat is provided with a chain pin shaft mounting and positioning assembly for mounting a chain pin shaft and circumferentially positioning the chain pin shaft.
Further, still be equipped with conveying assembly on the mount pad, conveying assembly is used for sending into the heating station with chain round pin axle installation locating component.
A circumferential local quenching process for a chain pin shaft adopts the circumferential local quenching device in the fourth embodiment, and at least comprises the following steps:
adjusting the relative position of the mounting bracket 4 and the rack;
step two, conveying the chain pin shaft to be processed into the coil mounting part 21 at a specific angle, and adjusting the position of the chain pin shaft relative to the coil mounting part 21;
thirdly, electrifying the induction coil, starting to heat the chain pin shaft, and moving out the chain pin shaft after heating for a preset time;
and step four, carrying out subsequent quenching operation.
In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a circumference local heating subassembly for chain round pin axle which characterized in that: comprises a mounting bracket and a heating unit,
the mounting bracket comprises a mounting piece, and the mounting piece is provided with an inserting groove;
the heating unit comprises a supporting part and a coil mounting part, and the supporting part is connected with the coil mounting part; the coil mounting part is arranged in an open manner in the circumferential direction and is arranged in an open loop manner, and the coil mounting part comprises arc-shaped segments arranged in a C shape; the coil mounting part is provided with an induction coil, and the induction coil extends along the coil mounting part;
the supporting part is connected with the mounting part.
2. The circumferential localized heating assembly of claim 1, wherein: the number of the supporting parts is two, and the coil mounting part is positioned between the two supporting parts; the mounting part is positioned between the two supporting parts.
3. The circumferential localized heating assembly of claim 2, wherein: the mounting parts correspond to the supporting parts one by one, and an insulating part is arranged between the two mounting parts.
4. The circumferential localized heating assembly of claim 2, wherein: and cooling channels are respectively arranged in the supporting part and the coil mounting part, and the cooling channels in the supporting part are communicated with the cooling channels in the coil mounting part.
5. The circumferential localized heating assembly of claim 1, wherein: the arc-shaped sections are semicircular.
6. A circumferential localized heating assembly as in any one of claims 1-5, wherein: two ends of the arc-shaped segment are respectively connected with a straight line segment,
the arc-shaped section and the straight-line section are respectively provided with an induction coil, and the induction coils on the arc-shaped section and the straight-line section work independently.
7. The circumferential localized heating assembly of claim 6, wherein: the length L of the straight line segment and the radius of the arc segment are R, and then L: r =0.2 to 0.4.
8. The circumferential localized heating assembly of claim 6, wherein: the quantity of coil installation department is two at least, just the coil installation department along arc segmentation's central line direction on parallel distribution.
9. A circumference local guenching unit for chain round pin axle which characterized in that: comprising a frame, a mounting seat, and a circumferential localized heating element as claimed in any one of claims 1 to 8, said circumferential localized heating element being detachably connectable to the frame;
the mounting bracket is connected with the rack, and the relative position of the mounting plate and the rack can be adjusted along the extension direction of the insertion groove; the induction heating element is arranged towards the mounting seat.
10. A circumferential local quenching process for a chain pin shaft, which is characterized by adopting the circumferential local quenching device as claimed in claim 9, and at least comprises the following steps:
adjusting the relative position of the mounting bracket and the frame;
secondly, feeding the chain pin shaft to be processed into the coil mounting part at a specific angle, and adjusting the position of the chain pin shaft relative to the coil mounting part;
step three, electrifying the induction coil, starting to heat the chain pin shaft, and moving out the chain pin shaft after heating for a preset time;
and step four, carrying out subsequent quenching operation.
CN202210826439.4A 2022-07-14 2022-07-14 Circumferential local heating assembly for chain pin shaft, quenching device and process Active CN115232926B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210826439.4A CN115232926B (en) 2022-07-14 2022-07-14 Circumferential local heating assembly for chain pin shaft, quenching device and process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210826439.4A CN115232926B (en) 2022-07-14 2022-07-14 Circumferential local heating assembly for chain pin shaft, quenching device and process

Publications (2)

Publication Number Publication Date
CN115232926A true CN115232926A (en) 2022-10-25
CN115232926B CN115232926B (en) 2023-05-23

Family

ID=83673395

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210826439.4A Active CN115232926B (en) 2022-07-14 2022-07-14 Circumferential local heating assembly for chain pin shaft, quenching device and process

Country Status (1)

Country Link
CN (1) CN115232926B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804390A (en) * 1971-09-08 1974-04-16 Ajax Magnethermic Corp Apparatus and method for heat-treating large diameter steel pipe
CA1280176C (en) * 1986-05-05 1991-02-12 George M. Mucha Method and apparatus for hardening axially spaced cams on a camshaft
CN204198805U (en) * 2014-11-03 2015-03-11 江苏双菱链传动有限公司 Automatic numerical control bearing pin quenching machine
CN110607423A (en) * 2019-10-22 2019-12-24 河北科技大学 Heat treatment device and method for drill rod for blast furnace opening
CN212128238U (en) * 2020-04-30 2020-12-11 四川联茂机械制造有限公司 Local quenching device for end face of pin shaft
CN212451522U (en) * 2020-06-24 2021-02-02 全州福达汽车零部件有限公司 Round pin axle quenching processing frock
CN213142103U (en) * 2020-08-27 2021-05-07 杭州信宝格电气有限公司 Induction hardening equipment of oblique terminal surface of axle head among round pin axle type part
CN215365912U (en) * 2021-09-15 2021-12-31 临沂业隆通用机械有限公司 Quenching inductor for hinged pin shaft of engineering machinery loader

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804390A (en) * 1971-09-08 1974-04-16 Ajax Magnethermic Corp Apparatus and method for heat-treating large diameter steel pipe
CA1280176C (en) * 1986-05-05 1991-02-12 George M. Mucha Method and apparatus for hardening axially spaced cams on a camshaft
CN204198805U (en) * 2014-11-03 2015-03-11 江苏双菱链传动有限公司 Automatic numerical control bearing pin quenching machine
CN110607423A (en) * 2019-10-22 2019-12-24 河北科技大学 Heat treatment device and method for drill rod for blast furnace opening
CN212128238U (en) * 2020-04-30 2020-12-11 四川联茂机械制造有限公司 Local quenching device for end face of pin shaft
CN212451522U (en) * 2020-06-24 2021-02-02 全州福达汽车零部件有限公司 Round pin axle quenching processing frock
CN213142103U (en) * 2020-08-27 2021-05-07 杭州信宝格电气有限公司 Induction hardening equipment of oblique terminal surface of axle head among round pin axle type part
CN215365912U (en) * 2021-09-15 2021-12-31 临沂业隆通用机械有限公司 Quenching inductor for hinged pin shaft of engineering machinery loader

Also Published As

Publication number Publication date
CN115232926B (en) 2023-05-23

Similar Documents

Publication Publication Date Title
US7506444B2 (en) Vehicle suspension control arm and method
US6742374B2 (en) Method for partly reinforcing a workpiece
US6274857B1 (en) Induction heat treatment of complex-shaped workpieces
US4363946A (en) Inductor for inductively heating raceways of antifriction bearing rings
US5702667A (en) Method and apparatus for heat treating a bushing
CN103459864B (en) The manufacture method of spherojoint
CN100449007C (en) Roller table roll, particularly for conveying furnace-heated metallic strip material
CN115232926A (en) Circumferential local heating assembly for chain pin shaft, quenching device and process
CN211522253U (en) Quenching inductor
CN212128238U (en) Local quenching device for end face of pin shaft
CN217709575U (en) Circumferential local heating assembly for rod-shaped workpiece
ES2919084T3 (en) Inductor for single-shot induction heating of complex workpieces
CN105238909A (en) Heating quenching inductor with different heat distributions
US20130140299A1 (en) Heating coil
US11846001B2 (en) Split multiple coil electric induction heat treatment systems for simultaneous heating of multiple features of a bearing component
US2256873A (en) Inside induction heater
CN210826286U (en) Induction hardening device for semicircular track surface of large-sized bearing race
CN107263034A (en) A kind of process of super-huge subdivision self-aligning roller bearing ring wire cutting
CN212785889U (en) Electric furnace electrode holder for producing low-carbon manganese-silicon alloy
US3777096A (en) Apparatus for inductively heating valve seats
US3761669A (en) Method and apparatus for inductively heating valve seats
CN219255226U (en) Fine special-shaped punch hanging table assembly
CN219807984U (en) Soft point controllable induction hardening device for cam shaft
KR200289900Y1 (en) Conveyer for heat treatment hearth system
USRE29046E (en) Method and apparatus for inductively heating valve seats

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant