CN106736302A - A kind of spring production process - Google Patents
A kind of spring production process Download PDFInfo
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- CN106736302A CN106736302A CN201710037236.6A CN201710037236A CN106736302A CN 106736302 A CN106736302 A CN 106736302A CN 201710037236 A CN201710037236 A CN 201710037236A CN 106736302 A CN106736302 A CN 106736302A
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- Prior art keywords
- spring
- spring body
- production process
- steel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Springs (AREA)
Abstract
The invention discloses a kind of spring production process, comprise the following steps：Spring steel a is placed in tagging in the sharp machine of stone roller and obtains spring steel b；Spring steel b is placed in heating in intermediate-frequency heating furnace and obtains spring steel c；Spring steel c is placed in wind spring in hot coiling spring machine, spring body a is obtained；Spring body a is placed in quenching in glowing furnace and obtains spring body b；Spring body b is cooled down by coolant and obtains spring body c；Spring body c is placed in tempering in tempering furnace and obtains spring body d within 100 minutes；Spring body d is placed in the first hydraulic press is pressed to and tight 1 time obtains spring body e；Spring body e is obtained into spring body f by spring grinding machine face grinding；Spring body f is obtained into spring body g in 20 minutes by compressed air shotblasting machine shot-peening；Spring body g is placed in into the second hydraulic press to press to and tight 3 times；Spring body g anticorrosion with painting coatings are obtained into spring body h, the purpose of lifting spring anticorrosive property has been reached.
Description
Technical field
The present invention relates to a kind of spring production process.
Background technology
Spring is a kind of using the elastic machine components come work, and the part being made of elastomeric material is sent out under external force
Raw deformation, restores to the original state again after removing external force.Spring is typically made of spring steel.The species complexity of spring is various, by shape
Point, mainly by helical spring, scroll spring, flat spring, deformed spring etc.；Tan Guang is usually to be worked under alternate stress, common
Failure mode be fatigue rupture, it is therefore desirable to the material of vegetation spring must have yield point and yield ratio high, elastic pole
Limit, anti-fatigue performance, to ensure that spring has enough elastic deformation abilities and can bear larger load, while requiring there is one
Fixed plasticity and toughness, certain quenching degree is difficult decarburization and is difficult overheat, but existing spring when using corrosion resistance compared with
Difference, researching and developing a kind of spring that can overcome drawbacks described above turns into those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In view of the shortcomings of the prior art, the invention reside in a kind of spring production process is provided, applied by anticorrosion with painting
Layer, reaches the purpose of lifting corrosion resistance.
To achieve the above object, the invention provides following technical scheme：A kind of spring production process, it is characterised in that
Comprise the following steps：
Step1：A diameter of 34mm, length are obtained into spring steel b for the spring steel a of 5490mm is placed in tagging in the sharp machine of stone roller,
The heating-up temperature for grinding sharp machine is 1050 DEG C, and final forging temperature is 900 DEG C, the forging face 504mm long of the spring steel b, plays forging length
The end thickness of 399mm, overall length 5712mm, the spring steel b is 10.5-12.2mm, holds a width of 23.8-34mm；
Step2：Spring steel b is placed in heating in intermediate-frequency heating furnace and obtains spring steel c；
Step3：Spring steel c is placed in wind spring in hot coiling spring machine, spring body a is obtained, the plug of described spring body a
Length is 180mm, and the pitch of the spring body a is 83.1mm；
Step4：Spring body a is placed in quenching in glowing furnace and obtains spring body b, the hardness of the spring body b is big
In 60HRC；
Step5：Spring body b is cooled down by coolant and obtains spring body c；
Step6：Spring body c is placed in tempering in tempering furnace and obtains within 100 minutes spring body d, the spring body d's
Hardness is 48.5-50.5HRC；
Step7：The spring body d that temperature is 200 DEG C is placed in the first hydraulic press is pressed to and tight 1 time obtains spring body
e；
Step8：Spring body e is thick big by the end that spring grinding machine face grinding obtains spring body f, the spring body f
In 8.5mm；
Step9：Spring body f is obtained into spring body g for 20 minutes by compressed air shotblasting machine shot-peening, the work of the compressed air shotblasting machine is strong
Degree is more than 91% more than 0.35A, coverage rate；
Step10：Spring body g is placed under defectoscope and is detected a flaw；
Step11：Spring body g is placed in into the second hydraulic press to press to and tight 3 times；
Step12：Spring body g anticorrosion with painting coatings are obtained into spring body h.
By using above-mentioned technical proposal, spring steel a is obtained into spring steel b, now, spring steel after grinding sharp machine tagging
The two ends of b are sharper, and spring steel b then is placed in into heating in intermediate-frequency heating furnace obtains spring steel c, and spring steel c quality is softer, is easy to
Twisted on hot coiling spring machine and can obtain spring body a, by spring body a by quenching obtained by spring body b have compared with
Rigidity well, hardness, wearability, fatigue strength and toughness, resulting bullet after spring body d is cooled down by coolant
Spring body c has preferable corrosion resistance, the spring body d that spring body c tempering is obtained is had into preferable toughness, and eliminate
The stress of inner most, is not susceptible to fracture, with service life more long, spring body d is led in the case of 200 DEG C
Cross the first hydraulic press press to and it is tight 1 time obtained by spring body e further eliminate a part internal stress, lifted toughness,
Two end faces of the spring body f that spring body e is obtained by spring grinding machine face grinding have the preferable depth of parallelism, are easy to spring
Transport, spring body g further improves corrosion resistance, wearability and fatigue resistance, meanwhile, further obviate surface
A part of stress, increases the service life, and spring body g is suppressed and tight 3 times by the second hydraulic press, and can further eliminate should
Power, by the anticorrosion with painting coating on spring body g, further improves anticorrosive property.
The present invention is further arranged to：Described coolant is alkali lye.
By using above-mentioned technical proposal, alkali lye can effectively lift the anticorrosive property of spring body c.
The present invention is further arranged to：The operating temperature of described intermediate-frequency heating furnace is 1000 DEG C.
By using above-mentioned technical proposal, spring steel c there can be preferable pliability, be easy to add in hot coiling spring machine
Work.
The present invention is further arranged to：The operating temperature of described glowing furnace is less than 900 DEG C more than 840 DEG C.
By using above-mentioned technical proposal so that spring body b has preferable rigidity, hardness, wearability, fatigue strength
And toughness.
The present invention is further arranged to：The operating temperature of described tempering furnace is 420-440 DEG C.
By using above-mentioned technical proposal, resulting spring body d eliminates most internal stress, lifts toughness,
It is not easily susceptible to impact and be broken.
The present invention is further arranged to：The thickness of described corrosion-inhibiting coating is 30-200 μm.
By using above-mentioned technical proposal so that corrosion-inhibiting coating is difficult to be occurred compared with large deformation from spring because of spring body h
Come off on body h, with preferable service life, meanwhile, it is capable to the effectively anti-corrosive properties of lifting spring body h.
The present invention is further arranged to：The ball of described compressed air shotblasting machine is cast steel ball.
By using above-mentioned technical proposal, can effectively lift the hardness of spring body g, meanwhile, the toughness of cast steel ball compared with
It is good, with service life more long.
The present invention is further arranged to：Described alkali lye includes water, potassium hydroxide, NaOH, the water, hydroxide
Potassium, the mass ratio of NaOH are 32:73:23.
By using above-mentioned technical proposal so that spring body c has preferable corrosion resistance.
In sum, the invention has the advantages that：
The corrosion resistance of spring body h is effectively improved, meanwhile, make spring body h that there is preferable toughness and hardness,
While being not susceptible to fracture, with preferable service life.
Specific embodiment
Embodiment 1：A kind of spring production process, comprises the following steps：
Step1：The blank that material is 50CrVA polishings is obtained into spring steel a by lathe process, spring steel a is in cylinder
Set, and spring steel a a diameter of 34mm, length is 5490mm.Sharp machine is ground to start and make heating-up temperature be 1050 DEG C, finish-forging temperature
It is 900 DEG C to spend, and is placed in the sharp machine of stone roller and carries out tagging to end spring steel a and obtain spring steel b, the end of spring steel b now
Thickness is 11mm, holds a width of 24mm, and length is 5712mm, forges face 504mm long, plays forging 399mm long.
Step2：Spring steel b is placed in intermediate-frequency heating furnace, and the operating temperature of intermediate-frequency heating furnace is stable at 1000 DEG C,
Spring steel b is uniformly heated 30 minutes, you can obtain spring steel c.Spring steel c now because having temperature higher, easily
Bending.
Step3：Spring steel c is placed in carries out wind spring in hot coiling spring machine, you can obtain several spring bodies a, each bullet
The plug length of spring body a is 180mm, and pitch is 83.1mm.
Step4：After each spring body a in Step3 is removed from hot coiling spring machine, it is sent directly into glowing furnace
Quenched.The operating temperature of glowing furnace is 850 DEG C.Temperature when spring body a is sent to glowing furnace is 845 DEG C.Spring sheet
Body a cool times in glowing furnace are 3 hours, take out and can obtain spring body b.
Step5：Coolant is alkali lye, and the alkali lye includes water, potassium hydroxide and NaOH, and above-mentioned water is distillation
Water, and the mass ratio of distilled water, potassium hydroxide, NaOH is 32:73:23.Spring body b is placed in complete in the coolant
Spring body c is can obtain after full cooling, hardness M1 is tested to spring body c by Rockwell apparatus.
Step6：The spring body c tested after hardness is placed in tempering in tempering furnace and can obtain spring body within 100 minutes
D, after spring body d is taken out from tempering furnace, with distillation water cooling, measures hard by spring body d by Rockwell apparatus
Degree M2, the operating temperature of tempering furnace is 423 DEG C.
Step7：Spring body d is heated to 200 DEG C, is placed on the workbench of the first hydraulic press, the first hydraulic press
First hydraulic axis are contradicted on spring body d, and spring body d is depressed into and tight 1 time, eliminate the major part in spring body d
Internal stress, you can obtain spring body e.
Step8：Spring body e is placed in face grinding in spring grinding machine, you can obtain spring body f, the end of spring body f is thick
It is 9mm.
Step9：Inserted in compressed air shotblasting machine as ball is cast steel ball, spring body f is placed in compressed air shotblasting machine shot-peening 20 minutes i.e.
Spring body g is can obtain, and coverage rate is 91%, and intensity is 0.38A.
Step10：Each spring body g is placed under defectoscope one by one and is detected a flaw, removal carries slight crack, the spring sheet of flaw
Body g.
Step11：The intact spring body g in surface is placed on the workbench of the second hydraulic press, the second of the second hydraulic press
Hydraulic axis are moved down, and are contradicted with spring body g, and by spring body g and tight 3 times.Eliminate the internal stress of spring body g.
Step12：The even application corrosion-inhibiting coating on the surface of spring body g, you can obtain spring body h.Corrosion-inhibiting coating
It is chlorinated rubber paint.The thickness of corrosion-inhibiting coating is 30 μm.
Finally spring body h is placed in salt-mist corrosion tester and tests its corrosion resistance.
The depth index vh of corrosion rate refers to the difference of the thickness H1 after corroding the thickness H0 of money the unit interval and corroding, i.e.,
Vh=(H0-H1)/t.
Embodiment 2：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of glowing furnace is
855℃。
Embodiment 3：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of glowing furnace is
860℃。
Embodiment 4：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of glowing furnace is
865℃。
Embodiment 5：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of glowing furnace is
875℃。
Embodiment 6：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of glowing furnace is
885℃。
Embodiment 7：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of glowing furnace is
888℃。
Embodiment 8：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of tempering furnace is
425℃。
Embodiment 9：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of tempering furnace is
430℃。
Embodiment 10：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of tempering furnace is
435℃。
Embodiment 11：A kind of spring production process, the difference with embodiment 1 is that the operating temperature of tempering furnace is
440℃。
Embodiment 12：A kind of spring production process, the difference with embodiment 1 is that the thickness of corrosion-inhibiting coating is 60 μ
m。
Embodiment 13：A kind of spring production process, the difference with embodiment 1 is that the thickness of corrosion-inhibiting coating is 80 μ
m。
Embodiment 14：A kind of spring production process, the difference with embodiment 1 is that the thickness of corrosion-inhibiting coating is 120
μm。
Embodiment 15：A kind of spring production process, the difference with embodiment 1 is that the thickness of corrosion-inhibiting coating is 150
μm。
Embodiment 16：A kind of spring production process, the difference with embodiment 1 is that the thickness of corrosion-inhibiting coating is 170
μm。
Embodiment 17：A kind of spring production process, the difference with embodiment 1 is that the thickness of corrosion-inhibiting coating is 190
μm。
Embodiment 18：A kind of spring production process, the difference with embodiment 1 is that the thickness of corrosion-inhibiting coating is 200
μm。
Performance characterization：
1st, test specimen：The spring that a kind of spring production process of embodiment 1-18 is produced.
2nd, quantitative measurement：Corrosion resistance to test specimen is tested；Testing result is as shown in table 1：
The performance characterization data of table 1 is counted
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of spring production process, it is characterised in that comprise the following steps：
Step1：A diameter of 34mm, length are obtained into spring steel b for the spring steel a of 5490mm is placed in tagging in the sharp machine of stone roller, it is described
The heating-up temperature for grinding sharp machine is 1050 DEG C, and final forging temperature is 900 DEG C, the forging face 504mm long of the spring steel b, plays forging length
The end thickness of 399mm, overall length 5712mm, the spring steel b is 10.5-12.2mm, holds a width of 23.8-34mm；
Step2：Spring steel b is placed in heating in intermediate-frequency heating furnace and obtains spring steel c；
Step3：Spring steel c is placed in wind spring in hot coiling spring machine, spring body a is obtained, the plug length of described spring body a
It is 180mm, the pitch of the spring body a is 83.1mm；
Step4：Spring body a is placed in quenching in glowing furnace and obtains spring body b, the hardness of the spring body b is more than
60HRC；
Step5：Spring body b is cooled down by coolant and obtains spring body c；
Step6：Spring body c is placed in tempering in tempering furnace and obtains within 100 minutes spring body d, the hardness of the spring body d
It is 48.5-50.5HRC；
Step7：The spring body d that temperature is 200 DEG C is placed in the first hydraulic press is pressed to and tight 1 time obtains spring body e；
Step8：Spring body e is obtained into spring body f by spring grinding machine face grinding, the end thickness of the spring body f is more than
8.5mm；
Step9：Spring body f is obtained into spring body g for 20 minutes by compressed air shotblasting machine shot-peening, the working strength of the compressed air shotblasting machine is big
It is more than 91% in 0.35A, coverage rate；
Step10：Spring body g is placed under defectoscope and is detected a flaw；
Step11：Spring body g is placed in into the second hydraulic press to press to and tight 3 times；
Step12：Spring body g anticorrosion with painting coatings are obtained into spring body h.
2. a kind of spring production process according to claim 1, it is characterised in that described coolant is alkali lye.
3. a kind of spring production process according to claim 2, it is characterised in that the work temperature of described intermediate-frequency heating furnace
Spend is 1000 DEG C.
4. a kind of spring production process according to claim 3, it is characterised in that the operating temperature of described glowing furnace is big
900 DEG C are less than in 840 DEG C.
5. a kind of spring production process according to claim 4, it is characterised in that the operating temperature of described tempering furnace is
420-440℃。
6. a kind of spring production process according to claim 5, it is characterised in that the thickness of described corrosion-inhibiting coating is
30-200μm。
7. a kind of spring production process according to claim 6, it is characterised in that the ball of described compressed air shotblasting machine is cast steel
Ball.
8. a kind of spring production process according to claim 7, it is characterised in that described alkali lye includes water, hydroxide
Potassium, NaOH, the water, potassium hydroxide, the mass ratio of NaOH are 32:73:23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037236.6A CN106736302A (en) | 2017-01-19 | 2017-01-19 | A kind of spring production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037236.6A CN106736302A (en) | 2017-01-19 | 2017-01-19 | A kind of spring production process |
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| CN106736302A true CN106736302A (en) | 2017-05-31 |
Family
ID=58943382
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| CN201710037236.6A Pending CN106736302A (en) | 2017-01-19 | 2017-01-19 | A kind of spring production process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480256A (en) * | 2019-07-11 | 2019-11-22 | 江苏长龄液压股份有限公司 | A kind of spring production process |
| CN112808904A (en) * | 2020-12-29 | 2021-05-18 | 苏州力迩美精密电子有限公司 | Machining process of corrosion-resistant overflow valve spring |
| CN115415238A (en) * | 2022-07-20 | 2022-12-02 | 上海太同弹簧有限公司 | Spring production process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480256A (en) * | 2019-07-11 | 2019-11-22 | 江苏长龄液压股份有限公司 | A kind of spring production process |
| CN112808904A (en) * | 2020-12-29 | 2021-05-18 | 苏州力迩美精密电子有限公司 | Machining process of corrosion-resistant overflow valve spring |
| CN115415238A (en) * | 2022-07-20 | 2022-12-02 | 上海太同弹簧有限公司 | Spring production process |
| CN115415238B (en) * | 2022-07-20 | 2023-10-03 | 上海太同弹簧有限公司 | Spring production process |
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Application publication date: 20170531 |