CN108823387A - A kind of new-energy automobile torsion bar suspension heat treatment method - Google Patents
A kind of new-energy automobile torsion bar suspension heat treatment method Download PDFInfo
- Publication number
- CN108823387A CN108823387A CN201810531241.7A CN201810531241A CN108823387A CN 108823387 A CN108823387 A CN 108823387A CN 201810531241 A CN201810531241 A CN 201810531241A CN 108823387 A CN108823387 A CN 108823387A
- Authority
- CN
- China
- Prior art keywords
- torsion bar
- bar suspension
- heat treatment
- energy automobile
- new
- 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.)
- Pending
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
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
-
- 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
-
- 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
- C21D1/26—Methods of annealing
Abstract
The invention discloses a kind of new-energy automobile torsion bar suspension heat treatment methods, successively include the following steps：Selection is annealed, and is machined, and is quenched, and is tempered, cooling；Wherein quenching and tempering are torsion bar suspension important procedures：The purpose of quenching is to strengthen steel, is run through austenite to martensite transfor mation, increases the intensity and hardness of steel.The present invention tends towards stability by tempering, the tissue of steel, and the brittleness of hardened steel reduces, and toughness and plasticity improve, and eliminates or reduce quenching stress, and the shape and size of stabilized steel prevent quenching part deformation and cracking, high tempering from can also improve machinability；Torsion bar suspension fatigue strength is improved, the service life of torsion bar suspension is effectively improved.
Description
Technical field
The invention discloses a kind of new-energy automobile torsion bar suspension heat treatment methods, are related to the technology of heat treatment process
Field.
Background technique
Torsion bar suspension is to utilize bar（Or stick, item）Expect torsional deflection and generates the rod-shaped spring that spring acts on, it is special
Point is that unit volume is shown no increases in output the rod-shaped spring of raw spring effect, its main feature is that unit volume averagely stores energy big, planform
Simply, lightness is typically used as vehicle suspension spring and stabilising arrangement, is also sometimes used as the valve spring of high-speed rotating machine.It turns round
Bar spring suspension material section usually has round bar, hollow bar and three kinds of rectangular section web, and the most commonly used is round bar systems
The torsion bar suspension of work；It is existing to be easy to cause torsion bar bending, hardness are uneven, fatigue performance weakens, relaxation deflection is big etc.,
Present application addresses such problems.
Summary of the invention
The present invention provides a kind of new-energy automobile torsion bar suspension heat treatment side for the defects of above-mentioned background technique
Method can eliminate the stress of torsion bar suspension upsetting generation, can make the workpiece higher hardness in surface after heat treatment, and center
Some strength and higher toughness and plasticity are still kept, torsion bar suspension fatigue is can be reduced, effectively improves torsion bar suspension
Service life.
To achieve the above object, the technical solution adopted by the present invention is as follows：A kind of new-energy automobile torsion bar suspension heat
Processing method successively includes the following steps：
Step 1：The material of torsion bar suspension is chosen, material is cut off by process stipulation length then, uses end heating arrangement
950~l000 DEG C is heated the material to, using upsetter jumping-up or forming, the end after upsetting heat with annealing furnace slow
Cold, annealing furnace initial temperature is 900~l000 DEG C, and cooling rate is 100~200 DEG C/h, is then carried out to end mechanical
Processing；
Step 2：Material dials in roller-way by rod for stiring materials on stock shelf, and material is sent in feed arrangement by driven roller, subsequent material
Material is clamped and is drawn out by clamping support, and material is sent out after passing through cylinder clamping by two groups of driven roller on blanking device, most
Material is collected in blanking rack by discharge arm afterwards, material face pressure head, is pressed in the material by the pressure head described
It is air-cooled on blanking rack；
Step 3：20 ~ 30min will be preheated at a temperature of 700 DEG C of the material, is heated to 1000 ~ 1100 DEG C later, keep the temperature 30min,
Then it is quenched, the inside of the blanking rack is equipped with the channel for accommodating quenching ring, and the channel includes being located at institute
The flat flow channel between the entrance and exit and entrance and outlet at blanking rack both ends is stated, the flat flow channel is parallel to institute
The upper surface of blanking rack is stated, and area is greater than the side of the material, water is 10~30 as hardening media, the temperature of water
DEG C, the processing time is 20 ~ 30s；
Step 4：Tempering furnace is transferred to after material water outlet in time, tempering temperature is 400~500 DEG C, and soaking time is 1~2h；
Step 5：After soaking time arrives, material goes out tempering furnace, and it is cooling directly to enter water.
Further, machining sequence is in the step 1：Machining center hole, turning outer diameter, rotary rolling mill, turning
Outer diameter is upset section diameter turning to finished size, while handle and the coupling part turning of material of main part diameter are smooth, and rolling adds
Work is to process zigzag by rolling mill or gear tooth burnishing machine.
Further, in the step 3, the heating equipment of preheating is batch-type furnace, and the protector being passed through is argon gas or nitrogen
Gas.
Further, the pressure head is the output end of baby press.
Further, the surface initial temperature of the blanking rack is less than 700 DEG C.
Further, heating rate is greater than 50 DEG C/min in the step 3.
Beneficial effect：The present invention tends towards stability by tempering, the tissue of steel, and the brittleness of hardened steel reduces, tough
Property improved with plasticity, eliminate or reduce quenching stress, the shape and size of stabilized steel prevent quenching from part deformation and opening
It splits, high tempering can also improve machinability；Torsion bar suspension fatigue strength is improved, it is outstanding to effectively improve torsion-bar spring
The service life of frame.
Detailed description of the invention
Flow process chart Fig. 1 of the invention.
Specific embodiment
The implementation of technical solution is described in further detail with reference to the accompanying drawing.Following embodiment is only used for more clear
Illustrate to Chu technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Shown in Fig. 1, the present invention provides a kind of new-energy automobile torsion bar suspension heat treatment methods, successively include following
Step：
Step 1：The material of torsion bar suspension is chosen, material is cut off by process stipulation length then, uses end heating arrangement
950~l000 DEG C is heated the material to, using upsetter jumping-up or forming, the end after upsetting heat with annealing furnace slow
Cold, annealing furnace initial temperature is 900~l000 DEG C, and cooling rate is 100~200 DEG C/h, is then carried out to end mechanical
Processing；
Step 2：Material dials in roller-way by rod for stiring materials on stock shelf, and material is sent in feed arrangement by driven roller, subsequent material
Material is clamped and is drawn out by clamping support, and material is sent out after passing through cylinder clamping by two groups of driven roller on blanking device, most
Material is collected in blanking rack by discharge arm afterwards, material face pressure head, is pressed in the material by the pressure head described
It is air-cooled on blanking rack；
Step 3：20 ~ 30min will be preheated at a temperature of 700 DEG C of the material, is heated to 1000 ~ 1100 DEG C later, keep the temperature 30min,
Then it is quenched, the inside of the blanking rack is equipped with the channel for accommodating quenching ring, and the channel includes being located at institute
The flat flow channel between the entrance and exit and entrance and outlet at blanking rack both ends is stated, the flat flow channel is parallel to institute
The upper surface of blanking rack is stated, and area is greater than the side of the material, water is 10~30 as hardening media, the temperature of water
DEG C, the processing time is 20 ~ 30s；
Step 4：Tempering furnace is transferred to after material water outlet in time, tempering temperature is 400~500 DEG C, and soaking time is 1~2h；
Step 5：After soaking time arrives, material goes out tempering furnace, and it is cooling directly to enter water.
Machining sequence is in the step 1：Machining center hole, turning outer diameter, rotary rolling mill, turning outer diameter is upsetting
Section diameter turning is forged to finished size, while handle and the coupling part turning of material of main part diameter are smooth, rotary rolling mill is to pass through
Rolling mill or gear tooth burnishing machine process zigzag.
In the step 3, the heating equipment of preheating is batch-type furnace, and the protector being passed through is argon gas or nitrogen.
The pressure head is the output end of baby press.
The surface initial temperature of the blanking rack is less than 700 DEG C.
Heating rate is greater than 50 DEG C/min in the step 3.
The present invention tends towards stability by tempering, the tissue of steel, and the brittleness of hardened steel reduces, and toughness and plasticity improve, and eliminates
Or quenching stress is reduced, the shape and size of stabilized steel prevent quenching part deformation and cracking, and high tempering, which can also improve, to be cut
Cut processing performance；Torsion bar suspension fatigue strength is improved, the service life of torsion bar suspension is effectively improved.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of new-energy automobile torsion bar suspension heat treatment method, it is characterised in that：Successively include the following steps：
Step 1：The material of torsion bar suspension is chosen, material is cut off by process stipulation length then, uses end heating arrangement
950~l000 DEG C is heated the material to, using upsetter jumping-up or forming, the end after upsetting heat with annealing furnace slow
Cold, annealing furnace initial temperature is 900~l000 DEG C, and cooling rate is 100~200 DEG C/h, is then carried out to end mechanical
Processing；
Step 2：Material dials in roller-way by rod for stiring materials on stock shelf, and material is sent in feed arrangement by driven roller, subsequent material
Material is clamped and is drawn out by clamping support, and material is sent out after passing through cylinder clamping by two groups of driven roller on blanking device, most
Material is collected in blanking rack by discharge arm afterwards, material face pressure head, is pressed in the material by the pressure head described
It is air-cooled on blanking rack；
Step 3：20 ~ 30min will be preheated at a temperature of 700 DEG C of the material, is heated to 1000 ~ 1100 DEG C later, keep the temperature 30min,
Then it is quenched, the inside of the blanking rack is equipped with the channel for accommodating quenching ring, and the channel includes being located at institute
The flat flow channel between the entrance and exit and entrance and outlet at blanking rack both ends is stated, the flat flow channel is parallel to institute
The upper surface of blanking rack is stated, and area is greater than the side of the material, water is 10~30 as hardening media, the temperature of water
DEG C, the processing time is 20 ~ 30s；
Step 4：Tempering furnace is transferred to after material water outlet in time, tempering temperature is 400~500 DEG C, and soaking time is 1~2h；
Step 5：After soaking time arrives, material goes out tempering furnace, and it is cooling directly to enter water.
2. a kind of new-energy automobile torsion bar suspension heat treatment method according to claim 1, it is characterised in that：The step
Machining sequence is in one：Machining center hole, turning outer diameter, rotary rolling mill, turning outer diameter arrive upset section diameter turning
Finished size, while handle and the coupling part turning of material of main part diameter are smooth, rotary rolling mill be by rolling mill or gear tooth burnishing machine come
Process zigzag.
3. a kind of new-energy automobile torsion bar suspension heat treatment method according to claim 1, it is characterised in that：The step
In three, the heating equipment of preheating is batch-type furnace, and the protector being passed through is argon gas or nitrogen.
4. a kind of new-energy automobile torsion bar suspension heat treatment method according to claim 1, it is characterised in that：The pressure
Head is the output end of baby press.
5. a kind of new-energy automobile torsion bar suspension heat treatment method according to claim 1, it is characterised in that：The blanking
The surface initial temperature of rack is less than 700 DEG C.
6. a kind of new-energy automobile torsion bar suspension heat treatment method according to claim 1, it is characterised in that：The step
Heating rate is greater than 50 DEG C/min in three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531241.7A CN108823387A (en) | 2018-05-29 | 2018-05-29 | A kind of new-energy automobile torsion bar suspension heat treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531241.7A CN108823387A (en) | 2018-05-29 | 2018-05-29 | A kind of new-energy automobile torsion bar suspension heat treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108823387A true CN108823387A (en) | 2018-11-16 |
Family
ID=64146182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810531241.7A Pending CN108823387A (en) | 2018-05-29 | 2018-05-29 | A kind of new-energy automobile torsion bar suspension heat treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108823387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116574886A (en) * | 2023-06-13 | 2023-08-11 | 宁波市齐力特钢有限公司 | Steel quenching method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202284213U (en) * | 2011-10-21 | 2012-06-27 | 昆山鑫昌泰模具科技有限公司 | Metal heat treatment combination type cooling correcting device |
| CN102925633A (en) * | 2012-10-11 | 2013-02-13 | 上海交通大学 | Steel plate quenching cooling method and device |
| CN103898302A (en) * | 2014-03-28 | 2014-07-02 | 浙江玛斯特汽配有限公司 | High-stress torsion rod spring heat treatment process |
| CN104400349A (en) * | 2014-11-06 | 2015-03-11 | 无锡市百顺机械厂 | Manufacturing technology of torsion bar spring |
| CN204918676U (en) * | 2015-06-30 | 2015-12-30 | 宁国市三方恒信耐磨有限公司 | Wear -resisting steel ball guenching unit |
-
2018
- 2018-05-29 CN CN201810531241.7A patent/CN108823387A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202284213U (en) * | 2011-10-21 | 2012-06-27 | 昆山鑫昌泰模具科技有限公司 | Metal heat treatment combination type cooling correcting device |
| CN102925633A (en) * | 2012-10-11 | 2013-02-13 | 上海交通大学 | Steel plate quenching cooling method and device |
| CN103898302A (en) * | 2014-03-28 | 2014-07-02 | 浙江玛斯特汽配有限公司 | High-stress torsion rod spring heat treatment process |
| CN104400349A (en) * | 2014-11-06 | 2015-03-11 | 无锡市百顺机械厂 | Manufacturing technology of torsion bar spring |
| CN204918676U (en) * | 2015-06-30 | 2015-12-30 | 宁国市三方恒信耐磨有限公司 | Wear -resisting steel ball guenching unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116574886A (en) * | 2023-06-13 | 2023-08-11 | 宁波市齐力特钢有限公司 | Steel quenching method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101626848B (en) | Seamless steel pipe, hollow spring utilizing seamless steel pipe, and process for manufacturing the same | |
| CN100582254C (en) | Process for producing high-strength spring | |
| JP4415009B2 (en) | Method for thermal processing control of steel | |
| KR102047403B1 (en) | Steel wire rod for cold forging, processed good using the same, and methods for manufacturing thereof | |
| CN105154785B (en) | High-strength bolt and its manufacture method | |
| EP1985716A2 (en) | Apparatus and method for continuously processing long bar by heat treatment using induction heating | |
| US6059898A (en) | Induction hardening of heat treated gear teeth | |
| CN106111874B (en) | A kind of processing method of automobile-use bearing forging | |
| CN106906340B (en) | A kind of fine grain heat treatment method | |
| CN103212950A (en) | Technique of improving toughening and formability of automotive AHSS hot-stamping structural component | |
| CN108823388A (en) | A kind of new-energy automobile torsion bar suspension surface laser heat treatment process | |
| CN105349940A (en) | Carburizing and carbonitriding combined heat treatment method for hot forging marking die steel | |
| KR101923126B1 (en) | Stabilizer | |
| CN111593173A (en) | Novel method for stably controlling cooling of non-quenched and tempered steel part | |
| CN108823387A (en) | A kind of new-energy automobile torsion bar suspension heat treatment method | |
| US20110000584A1 (en) | Process for Forming Steel | |
| CN107794348A (en) | A kind of Technology for Heating Processing of raising Cr12MoV steel combination properties | |
| CN110317934B (en) | Heat treatment process for improving uniformity of H13 steel annealing structure | |
| CN111451425A (en) | Forging method for controlling white point defect | |
| JP3634418B2 (en) | Coil spring manufacturing method and high toughness / high tensile strength coil spring | |
| CN114130814B (en) | Method for controlling flatness of grinding ball steel with high precision | |
| CN104227363A (en) | Turning tool production steps favorable for martensite formation during heat treatment | |
| JPS6164817A (en) | Manufacture of hollow stabilizer using electric welded pipe | |
| CN111534759B (en) | Processing method for improving end cracking of high-hardenability steel after annealing | |
| CN108285950B (en) | A kind of heat treatment method controlling the quenching distortion of sendzimir mill working roll |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181116 |