CN105018683A - 35CrMo sliding plate surface quenching process - Google Patents
35CrMo sliding plate surface quenching process Download PDFInfo
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- CN105018683A CN105018683A CN201510476369.4A CN201510476369A CN105018683A CN 105018683 A CN105018683 A CN 105018683A CN 201510476369 A CN201510476369 A CN 201510476369A CN 105018683 A CN105018683 A CN 105018683A
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- China
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- 35crmo
- quenching
- surface quenching
- frequency induction
- inductor block
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- 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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- Bending Of Plates, Rods, And Pipes (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a 35CrMo sliding plate surface quenching process and relates to the field of machining. The 35CrMo sliding plate surface quenching process includes the process steps of stress relief annealing, medium-frequency induction quenching and straightening. Medium-frequency induction equipment is used for carrying out single-face induction heating quenching in the quenching process, and the quenching grinding allowance is reserved in the machining process; deformation generated after quenching is straightened through a three-roller plate roll, and the deformation amount is controlled within 0.35 mm-0.80 mm; then plane grinding is conducted, and the planeness and the parallelism both reach 0.05 mm; and drawing technical requirements are met.
Description
Technical field
The present invention relates to field of machining, be specifically related to a kind of 35CrMo sled surface quenching processing technology.
Background technology
Keep in repair the slide plate of use in certain company's machine shop, ejector rob trolley provided surface sliding thereon, slide plate should have high precision, high rigidity, high strength, enough toughness, and its main failure forms is wearing and tearing, therefore needs to quench to its upper surface.This batch of slide plate is elongated, sheet part, and select which type of quenching mode to meet hardness requirement and to solve straightening problem, making deflection meet drawing technical requirements is a great problem.Following operational path has been formulated according to the feature of part and existing installation.
Summary of the invention
Problem to be solved by this invention is to provide a kind of energy strongthener hardness, the 35CrMo sled surface quenching technology that dimensional precision is high.
To achieve these goals, the technical scheme that the present invention takes is: a kind of 35CrMo sled surface quenching processing technology, comprises the steps:
(1) stress relief annealing: stand up parallel for slide plate in 45 kW stoves, be heated to 545 ~ 560 DEG C of air coolings of coming out of the stove.
(2) quench treatment: utilize Medium frequency induction equipment to heat, adopts plane laser heating quenching mode.Technical requirements: modifier treatment HB 241 ~ 269, upper surface quenching hardness HRC 45 ~ 55, depth of hardening zone 2 mm, parallelism and planeness are 0.05 mm.
(3) correct: align with little three rolls plate bending machine, roller diameter 200 mm, 3 roller center are equilateral triangle, and the distance between top roll and lower roll can adjust, and slide plate, through roll extrusion repeatedly, gradually reduces deflection, roll extrusion 3 ~ 5 times.
Preferably, in described step (2) Medium frequency induction equipment, inductor block used adopts the square copper tube of 12 mm × 12 mm to bend, thickness of pipe 2 mm, and during heating, the every limit of induction coil should protruding (1/3-1/2) individual inductor block cross-sectional width.
Preferably, logical tap water in described step (2) inductor block, hydraulic pressure 2 MPa.
Adopt technical scheme of the present invention, single-side induction heating quenching is carried out by adopting Medium frequency induction equipment, reserved quenching grinding tolerance during machining, the distortion produced after quenching is aligned by three rolls plate bending machine, deformation amount controlling is in 0.35 ~ 0.80 mm, and then plane grinding, makes planeness, parallelism all reach 0.05 mm, dimensional precision is high, and surface quality is good.
Embodiment
The technique means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
embodiment 1:
(1) stress relief annealing: being that the 35CrMo slide plate of 20 mm is parallel by one piece of thickness stands up in 45 kW stoves, is heated to 550 DEG C, is incubated 1 h, lower than 400 DEG C of air coolings of coming out of the stove.
(2) quench treatment: utilize Medium frequency induction equipment to heat, adopts plane laser heating quenching mode.Technical requirements: modifier treatment hardness HB 240, upper surface quenching hardness HRC 50, depth of hardening zone 2 mm, parallelism and planeness are 0.05 mm.
(3) correct: utilize little three rolls plate bending machine to align, roller diameter 200 mm, 3 roller center are equilateral triangle, and the distance between top roll and lower roll can adjust, and slide plate, through roll extrusion repeatedly, gradually reduces deflection, roll extrusion 3 times.
In the present embodiment, in described step (2) Medium frequency induction equipment, inductor block used adopts the square copper tube of 12 mm × 12 mm to bend, thickness of pipe 2 mm, and during heating, the every limit of induction coil should protruding 1/3 inductor block cross-sectional width.
In the present embodiment, logical tap water in described step (2) inductor block, hydraulic pressure 2 MPa.
Based on above-mentioned, single-side induction heating quenching is carried out by adopting Medium frequency induction equipment, reserved quenching grinding tolerance during machining, the distortion produced after quenching is aligned by three rolls plate bending machine, deformation amount controlling is in 0.35 ~ 0.80 mm, then plane grinding, makes planeness, parallelism all reach 0.05 mm, meets drawing technical requirements.
Obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (3)
1. a 35CrMo sled surface quenching processing technology, is characterized in that, comprises the steps:
(1) stress relief annealing: stand up parallel for slide plate in 45 kW stoves, be heated to 545 ~ 560 DEG C of air coolings of coming out of the stove;
(2) quench treatment: utilize Medium frequency induction equipment to heat, adopts plane laser heating quenching mode,
Technical requirements: modifier treatment HB 241 ~ 269, upper surface quenching hardness HRC 45 ~ 55, depth of hardening zone 2 mm, parallelism and planeness are 0.05 mm;
(3) correct: align with little three rolls plate bending machine, roller diameter 200 mm, 3 roller center are equilateral triangle, and the distance between top roll and lower roll can adjust, and slide plate, through roll extrusion repeatedly, gradually reduces deflection, roll extrusion 3 ~ 5 times.
2. a kind of 35CrMo sled surface quenching processing technology according to claim 1, it is characterized in that: in described step (2) Medium frequency induction equipment, inductor block used adopts the square copper tube of 12 mm × 12 mm to bend, thickness of pipe 2 mm, during heating, the every limit of induction coil should protruding (1/3-1/2) individual inductor block cross-sectional width.
3. a kind of 35CrMo sled surface quenching processing technology according to claim 2, is characterized in that: logical tap water in described step (2) inductor block, hydraulic pressure 2 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476369.4A CN105018683A (en) | 2015-08-06 | 2015-08-06 | 35CrMo sliding plate surface quenching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476369.4A CN105018683A (en) | 2015-08-06 | 2015-08-06 | 35CrMo sliding plate surface quenching process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105018683A true CN105018683A (en) | 2015-11-04 |
Family
ID=54408981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476369.4A Pending CN105018683A (en) | 2015-08-06 | 2015-08-06 | 35CrMo sliding plate surface quenching process |
Country Status (1)
| Country | Link |
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| CN (1) | CN105018683A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052811A (en) * | 2017-04-26 | 2017-08-18 | 江阴市祥源机械有限公司 | Slide plate processing technology and slide plate process equipment |
| CN107460283A (en) * | 2017-08-15 | 2017-12-12 | 天津万立鑫晟新材料技术研究院有限公司 | A kind of high temperature straightening method of rich chromium cast iron casting |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5480214A (en) * | 1977-12-09 | 1979-06-26 | Hitachi Ltd | Hardening method of rolls |
| CN101463417A (en) * | 2008-12-11 | 2009-06-24 | 天水星火机床有限责任公司 | Heat treatment method for strip steel inlaid guide rail |
-
2015
- 2015-08-06 CN CN201510476369.4A patent/CN105018683A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5480214A (en) * | 1977-12-09 | 1979-06-26 | Hitachi Ltd | Hardening method of rolls |
| CN101463417A (en) * | 2008-12-11 | 2009-06-24 | 天水星火机床有限责任公司 | Heat treatment method for strip steel inlaid guide rail |
Non-Patent Citations (1)
| Title |
|---|
| 王丽华: "35CrMo滑板表面淬火工艺研究", 《包钢科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052811A (en) * | 2017-04-26 | 2017-08-18 | 江阴市祥源机械有限公司 | Slide plate processing technology and slide plate process equipment |
| CN107460283A (en) * | 2017-08-15 | 2017-12-12 | 天津万立鑫晟新材料技术研究院有限公司 | A kind of high temperature straightening method of rich chromium cast iron casting |
| CN107460283B (en) * | 2017-08-15 | 2019-09-10 | 天津万立鑫晟新材料技术研究院有限公司 | A kind of high temperature straightening method of rich chromium cast iron casting |
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Application publication date: 20151104 |