CN109722521A - A kind of heat treatment processing method and its dedicated Temperer dress of check ring - Google Patents
A kind of heat treatment processing method and its dedicated Temperer dress of check ring Download PDFInfo
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- CN109722521A CN109722521A CN201811362613.4A CN201811362613A CN109722521A CN 109722521 A CN109722521 A CN 109722521A CN 201811362613 A CN201811362613 A CN 201811362613A CN 109722521 A CN109722521 A CN 109722521A
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- check ring
- temperature
- tempering
- heat treatment
- quenching
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Abstract
A kind of heat treatment processing method and its dedicated Temperer dress of check ring, the check ring cleaned up is worn into bunchiness, it is packed into vacuum hardening material frame, vacuum quencher is sent into be quenched, it is vacuumized before vacuum hardening stove heating, equipment is warming up to 650 DEG C~670 DEG C, keeps the temperature 20~30min, then be warming up to 860~870 DEG C of hardening heat and quenched；Then check ring being sent into cold house, to carry out quenching oil cold, 100 DEG C or less are cooled in oil groove come out of the stove and be air-cooled to room temperature；Then check ring is fitted into tempering tooling and carries out shaping tempering, check ring is inserted in screw rod, is carried out thermal recalibration using pressing plate by nut, is entered furnace tempering, tempering water cooling to room temperature；The present invention uses the deficiency that brittle fracture occurs after solving check ring quenching, reduces the deformation of check ring, improves the flatness of check ring, so that check ring avoids the occurrence of fracture in subsequent assembly use process.
Description
Technical field
The invention belongs to metal heat treatmet field more particularly to the heat treatment processing methods of 60Si2MnA check ring.
Background technique
Check ring is mainly operated repeatedly by elasticity to reach generally as the effect called back in product plug-in connection
Using purpose, workpiece is primarily subjected to squeeze the effect of flexible deformation in use, plays buffering and the effect of spring recovery,
With the features such as elasticity is good, and hardness is high.Usually by flexible deformation storage capacity, workpiece is reached by the recovery of elasticity and is inserted
Connect purpose.Main use scope is to use within the scope of 45 ~ 55HRC in hardness.In the prior art, initial heat treatment mode uses
After salt bath stove heating, since process parameter inconvenience controls, cause after heat treatment process hardness generally between 48 ~ 53HRC,
80% is broken after progress elasticity test；The check ring thickness is only 1.05mm, and buckling deformation is serious after heat treatment, is caused
After bearing high-frequency reciprocating motion brittle fracture occurs for spring leaf out-of-flatness after assembly, unbalance stress.Using the prior art
Heat treatment processing method after, check ring regular generation fracture and deformation are difficult to correct, and are unable to satisfy product requirement.
Therefore, it is necessary to a kind of new heat treatment methods to keep good mode to elasticity, deformation and overall performance to realize.
Summary of the invention
In order to solve existing the technical issues of occurring in process of production, the purpose of the present invention is to provide a kind of solution springs
Using the deficiency that brittle fracture occurs after retaining ring quenching, the deformation of check ring is reduced, the flatness of check ring is improved, so that
Check ring avoids the occurrence of the heat treatment processing method of the check ring of fracture in subsequent assembly use process.
The object of the invention is also to provide the dedicated Temperer of the heat treatment processing method of above-mentioned check ring dresses.
To achieve the purpose that foregoing invention, the method for the present invention includes the following steps:
Step 1: check ring after molding to be washed to the spot grease stain on surface；
Step 2: the check ring cleaned up is worn bunchiness, it is then charged into vacuum hardening material frame, vacuum quencher is sent into and carries out
Quenching, quenching process use preheating-quenching heating method, are vacuumized before vacuum hardening stove heating, vacuum degree is maintained at
Vacuum quencher is warming up to 650 DEG C~670 DEG C of a preheating temperature from room temperature by 20~30min, protected by 1.33~13.3Pa
Vacuum quencher is warming up to 860~870 DEG C of hardening heat using 15~20min by 20~30min of temperature, keep the temperature into
15~20min of row quenching and preserving heat；
Step 3: the check ring of good heat insulation is sent into, cold house's progress quenching oil is cold, and oil temperature is 55~60 DEG C, opens quenching mechanism
It carries out cooling into oil groove；It is cooled to 100 DEG C or less in oil groove and comes out of the stove and is air-cooled to room temperature；
Tempering is carried out shaping Step 4: quenched check ring is fitted into tempering tooling, check ring is inserted in screw rod, is led to
It crosses nut and carries out thermal recalibration using pressing plate, enter furnace tempering, tempering temperature is 440 ± 10 DEG C, 40~60min of soaking time, tempering
Water cooling is to room temperature；
Step 5: check ring of the heat treatment process after complete is detected, flatness and hardness are transferred to next after meeting the requirements
Step carries out elasticity test.
In step 2 of the present invention, vacuum degree most preferably 1.6~1.7Pa quenches vacuum from room temperature by 25~27min
Stove is warming up to 655 DEG C~660 DEG C of an optimum Preheating Temperature, keeps the temperature 25~27min, vacuum is quenched using 17~18min
Stove is warming up to 865~868 DEG C of hardening heat, and the temperature is kept to carry out 18~19min of quenching and preserving heat.
In step 2 of the present invention, the check ring cleaned up is worn into bunchiness with long spring or iron wire, spring it is every
A check ring is hung under one section, makes have interval between adjacent springs retaining ring, or worn into the check ring cleaned up with iron wire
It goes here and there, has multiple tubercles on iron wire, make have interval between adjacent springs retaining ring with tubercle.
In step 3 of the present invention, most preferably 58~60 DEG C of oil temperature, check ring is cooled to best 120 DEG C in oil groove and goes out
Furnace is air-cooled to room temperature.
In step 4 of the present invention, best most preferably 440 ± 5 DEG C of tempering keeps the temperature 50~55min of Best Times.
The dedicated Temperer of the heat treatment processing method of check ring of the present invention fills, including a fixing seat, fixed
There is working beam on seat, there is screw rod in working beam one end, pressing plate is cased on working beam, nut is loaded on screw rod；Fixing seat inner side end
With working beam central axis；Fixing seat, working beam, pressing plate center line are on the same line；Fixing seat, the diameter of pressing plate are big
In the diameter of check ring to be processed.
The present invention is by rational process technological parameter, and scientific design is tempered clamping fixed form, to solve
The problem of check ring failure and deformation.Compared with prior art, the present invention takes heat treatment processing method to solve 60Si2MnA
Check ring brittle fracture and problem on deformation, buckling deformation difficulty corrects after solving retaining ring heat treatment, avoids because hardness controls
The brittle fracture of check ring, improves the qualification rate of product heat treatment caused by bad (because hardness is uneven and higher), it is ensured that
Product quality, the check ring hardness after present invention processing concentrate on the best area of 46~48HRC(60Si2MnA elastic limit
Between)；It is deformed using backfire control, is formed in drawing process using tooling simultaneously, reduce the deformation of check ring, improve spring
The flatness of retaining ring, flatness control within 0.15mm, meet the subsequent assembly demand of product, meet product to check ring
Aeroelastic requirements.The present invention has easy to operate, high treating effect in batch, so that check ring is in subsequent assembly use process
Fracture is avoided the occurrence of, the deformation and Flexible use range of check ring are finally met, it is various sizes of various to be suitable for same type
The heat treatment process of check ring.
Detailed description of the invention
Fig. 1 is special tooling structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of the fix seat of that invention, working beam；
Fig. 3 is the structural schematic diagram of pressing plate of the present invention；
Fig. 4 is workpiece to be processed structural schematic diagram.
In figure, 1, fixing seat；2, pressing plate；3, nut；4, working beam；5, check ring to be processed.
Specific embodiment
In Fig. 1, special tooling of the invention is tempering tooling, has working beam 4 in fixing seat 1, there is spiral shell in 4 one end of working beam
Bar is cased with pressing plate 2 on working beam 4, and nut 3 loaded on screw rod, fix with 4 central axis of working beam by 1 inner side end of fixing seat
On the same line, fixing seat 1, the diameter of pressing plate 2 are straight greater than check ring to be processed for seat 1, working beam 4,2 center line of pressing plate
Diameter.Check ring 5 to be processed is inserted in working beam 4, is pressed using nut 3 to pressing plate 2, is tempered in heating process and utilizes thermal recalibration
Solve the deformation of check ring.
In Fig. 2, fixing seat 1, working beam 4.
In Fig. 3,2 be pressing plate.
In Fig. 4,5 be check ring to be processed.
Embodiment
Step 1: check ring 5 to be processed after molding to be washed to the spot grease stain etc. on surface；
Step 2: the check ring to be processed 5 cleaned up is worn into string with thin wire, and it is uneven in order to avoid quenching, guarantee zero
The uniform contact hardening medium in each face of part has multiple stitches on iron wire, is made between adjacent springs retaining ring in tubercle (stitch)
Between stitch separate；It is then charged into vacuum hardening material frame, vacuum quencher is sent into and is quenched, quenching process uses preheating-quenching
Heating method, vacuumized before vacuum hardening stove heating, vacuum degree is maintained at 13.3Pa, will set from room temperature by 25min
It is standby to be warming up to 660 DEG C of preheating temperature, 25min is kept the temperature, equipment is warming up to 860 DEG C of hardening heat using 15min, is kept
The temperature carries out quenching and preserving heat 15min；
Step 3: the check ring to be processed of good heat insulation is sent into, cold house's progress quenching oil is cold, and oil temperature is 55 DEG C, opens quenching press
Structure carries out cooling into oil groove；It is cooled to 50 DEG C or less in oil groove and comes out of the stove and is air-cooled to room temperature；
Tempering is carried out shaping Step 4: quenched check ring 5 to be processed is fitted into tempering tooling, is inserted in working beam 4,
Thermal recalibration is carried out using pressing plate 2 by nut 3, enters furnace tempering, tempering temperature is 430 DEG C, soaking time 40min, is tempered water cooling
To room temperature；
Step 5: check ring of the heat treatment process after complete is detected, flatness 0.12mm, hardness 46.5HRC.Turn
Enter and carries out elasticity test in next step.
Claims (6)
1. a kind of heat treatment processing method of check ring, which comprises the following steps:
Step 1: check ring after molding to be washed to the spot grease stain on surface；
Step 2: the check ring cleaned up is worn bunchiness, it is then charged into vacuum hardening material frame, vacuum quencher is sent into and carries out
Quenching, quenching process use preheating-quenching heating method, are vacuumized before vacuum hardening stove heating, vacuum degree is maintained at
Vacuum quencher is warming up to 650 DEG C~670 DEG C of a preheating temperature from room temperature by 20~30min, protected by 1.33~13.3Pa
Vacuum quencher is warming up to 860~870 DEG C of hardening heat using 15~20min by 20~30min of temperature, keep the temperature into
15~20min of row quenching and preserving heat；
Step 3: the check ring of good heat insulation is sent into, cold house's progress quenching oil is cold, and oil temperature is 55~60 DEG C, opens quenching mechanism
It carries out cooling into oil groove；It is cooled to 100 DEG C or less in oil groove and comes out of the stove and is air-cooled to room temperature；
Tempering is carried out shaping Step 4: quenched check ring is fitted into dedicated Temperer dress, check ring is inserted in work
In bar, thermal recalibration is carried out using pressing plate by nut, enters furnace tempering, tempering temperature is 440 ± 10 DEG C, soaking time 40~
60min, tempering water cooling to room temperature.
2. the heat treatment processing method of check ring according to claim 1, it is characterised in that: in the step 2, vacuum
Most preferably 1.6~1.7Pa is spent, vacuum quencher is warming up to 655 DEG C of optimum Preheating Temperature from room temperature by 25~27min
~660 DEG C, 25~27min is kept the temperature, vacuum quencher is warming up to 865~868 DEG C of hardening heat using 17~18min, is protected
It holds the temperature and carries out 18~19min of quenching and preserving heat.
3. the heat treatment processing method of check ring according to claim 1, it is characterised in that: in the step 2, with length
The check ring cleaned up is worn bunchiness by spring or iron wire, is hung a check ring under each section of spring, is kept off adjacent springs
There is interval between circle, or the check ring cleaned up is worn into bunchiness with iron wire, iron wire is equipped with multiple tubercles, makes phase with tubercle
There is interval between adjacent check ring.
4. the heat treatment processing method of check ring according to claim 1, it is characterised in that: in the step 3, oil
Most preferably 58~60 DEG C of temperature, check ring is cooled to best 120 DEG C in oil groove comes out of the stove and is air-cooled to room temperature.
5. the heat treatment processing method of check ring according to claim 1, it is characterised in that: in the step 4, most
Good most preferably 440 ± 5 DEG C of tempering, keeps the temperature 50~55min of Best Times.
6. a kind of dedicated Temperer of heat treatment processing method of check ring described in claim 1 fills, it is characterised in that: packet
A fixing seat (1) is included, is had working beam (4) in fixing seat (1), there is screw rod in working beam (4) one end, and working beam is cased with pressure on (4)
Plate (2), nut (3) is loaded on screw rod；Fixing seat (1) inner side end and working beam central axis；Fixing seat (1), working beam
(4), pressing plate (2) center line is on the same line；Fixing seat (1), the diameter of pressing plate (2) are straight greater than check ring to be processed
Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811362613.4A CN109722521A (en) | 2018-11-16 | 2018-11-16 | A kind of heat treatment processing method and its dedicated Temperer dress of check ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811362613.4A CN109722521A (en) | 2018-11-16 | 2018-11-16 | A kind of heat treatment processing method and its dedicated Temperer dress of check ring |
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| Publication Number | Publication Date |
|---|---|
| CN109722521A true CN109722521A (en) | 2019-05-07 |
Family
ID=66294611
Family Applications (1)
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|---|---|---|---|
| CN201811362613.4A Pending CN109722521A (en) | 2018-11-16 | 2018-11-16 | A kind of heat treatment processing method and its dedicated Temperer dress of check ring |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112547743A (en) * | 2019-09-25 | 2021-03-26 | 罗伯特·博世有限公司 | Method and device for processing spiral spring |
| CN112725590A (en) * | 2020-12-18 | 2021-04-30 | 苏州轴承厂股份有限公司 | Manufacturing method for low deformation of spring steel |
| CN113528769A (en) * | 2021-06-17 | 2021-10-22 | 中石化四机石油机械有限公司 | Device and method for preventing elastic check ring for shaft of drilling platform in polar environment from quenching deformation |
| CN113897476A (en) * | 2021-09-27 | 2022-01-07 | 中国航发哈尔滨东安发动机有限公司 | Process method for improving qualified rate of thin-wall elastic washer products and tempering tool |
| CN114058830A (en) * | 2021-12-08 | 2022-02-18 | 中国铁建重工集团股份有限公司 | Heat treatment tool and machining method |
| CN114231725A (en) * | 2021-12-02 | 2022-03-25 | 贵州航天精工制造有限公司 | Heat treatment method and heat treatment device for angular elastic washer |
| CN115386709A (en) * | 2022-09-30 | 2022-11-25 | 南京中船绿洲机器有限公司 | Heat treatment processing method of thin-wall part |
| US11857075B2 (en) | 2021-02-17 | 2024-01-02 | Salto, Llc | Wall-mountable accessory |
| CN115386709B (en) * | 2022-09-30 | 2024-04-26 | 南京中船绿洲机器有限公司 | Heat treatment processing method for thin-wall part |
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| CN201660677U (en) * | 2010-02-11 | 2010-12-01 | 浙江三和机电科技有限公司 | Heat treating tool of gasket |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112547743A (en) * | 2019-09-25 | 2021-03-26 | 罗伯特·博世有限公司 | Method and device for processing spiral spring |
| CN112725590A (en) * | 2020-12-18 | 2021-04-30 | 苏州轴承厂股份有限公司 | Manufacturing method for low deformation of spring steel |
| US11857075B2 (en) | 2021-02-17 | 2024-01-02 | Salto, Llc | Wall-mountable accessory |
| CN113528769A (en) * | 2021-06-17 | 2021-10-22 | 中石化四机石油机械有限公司 | Device and method for preventing elastic check ring for shaft of drilling platform in polar environment from quenching deformation |
| CN113897476A (en) * | 2021-09-27 | 2022-01-07 | 中国航发哈尔滨东安发动机有限公司 | Process method for improving qualified rate of thin-wall elastic washer products and tempering tool |
| CN114231725A (en) * | 2021-12-02 | 2022-03-25 | 贵州航天精工制造有限公司 | Heat treatment method and heat treatment device for angular elastic washer |
| CN114058830A (en) * | 2021-12-08 | 2022-02-18 | 中国铁建重工集团股份有限公司 | Heat treatment tool and machining method |
| CN115386709A (en) * | 2022-09-30 | 2022-11-25 | 南京中船绿洲机器有限公司 | Heat treatment processing method of thin-wall part |
| CN115386709B (en) * | 2022-09-30 | 2024-04-26 | 南京中船绿洲机器有限公司 | Heat treatment processing method for thin-wall part |
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Application publication date: 20190507 |