CN106011434A - Annealing process of anti-deformation spring - Google Patents
Annealing process of anti-deformation spring Download PDFInfo
- Publication number
- CN106011434A CN106011434A CN201610627306.9A CN201610627306A CN106011434A CN 106011434 A CN106011434 A CN 106011434A CN 201610627306 A CN201610627306 A CN 201610627306A CN 106011434 A CN106011434 A CN 106011434A
- Authority
- CN
- China
- Prior art keywords
- product
- spring
- annealing process
- resistance
- deformation
- 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
- C21D1/26—Methods of annealing
-
- 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
- C21D1/34—Methods of heating
- C21D1/40—Direct resistance heating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
Abstract
The invention discloses an annealing process of an anti-deformation spring. The process consists of: firstly pickling a product, removing surface impurities and an oxide layer, and then performing drying; putting the product into an alternating current circuit to conduct ohmic heating treatment at a temperature of 320-360DEG C for 40-80sec; and then putting the product into a thermal insulation furnace to conduct thermal insulation for 20-30min, and then conducting cooling to a temperature below 50DEG C by air cooling. By the way, the process provided by the invention can remove spring inner stress and greatly reduce spring deformation and cracking tendency, and is more convenient for subsequent processing.
Description
Technical field
The present invention relates to a kind of spring, particularly to the annealing process of a kind of resistance to deformation spring.
Background technology
Spring is a kind of machine components utilizing elasticity to carry out work, the part made with elastomeric material deforms upon under external force, restore to the original state again after removing external force, development along with science and technology, the usage amount of spring also gets more and more, all trades and professions are both needed to use spring, it is more and more higher for the requirement of spring that this result also in people, the defect that there is also at present is: the annealing process of spring is the simplest, in the case of present product quality develops rapidly, it is unable to reach annealing requirement so that product easily deforms and crackle tendency during processing.
Summary of the invention
The technical problem that present invention mainly solves is to provide the annealing process of a kind of resistance to deformation spring, it is possible to remove spring internal stress, deformation and the crackle tendency of spring is greatly decreased, easily facilitates follow-up processing.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provides the annealing process of a kind of resistance to deformation spring, specifically includes following steps:
(1), pre-treatment: product is carried out pickling, removes surface impurity and oxide layer, dry subsequently；
(2), annealing: being put into by product and carry out electrified regulation process in alternating current circuit, electrified regulation temperature is 320-360 DEG C, and heat time heating time is the 40-80 second；
(3), insulation: product is put into holding furnace inside holding 20-30 minute, use air-cooled mode to be cooled to less than 50 DEG C subsequently.
In a preferred embodiment of the present invention, the rated voltage of described alternating current circuit is 220V.
In a preferred embodiment of the present invention, described pickling uses concentration to be the hydrochloric acid of 3-5%.
In a preferred embodiment of the present invention, the length of described product is less than 20mm.
The invention has the beneficial effects as follows: the annealing process of the present invention a kind of resistance to deformation spring can remove spring internal stress, deformation and the crackle tendency of spring is greatly decreased, easily facilitates follow-up processing.
Detailed description of the invention
Below presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
Embodiment 1:
The annealing process of a kind of resistance to deformation spring, specifically includes following steps:
(1), pre-treatment: product carrying out pickling, removes surface impurity and oxide layer, dry subsequently, described pickling uses concentration to be the hydrochloric acid of 3-5%；
(2), annealing: product is put into and carries out electrified regulation process in alternating current circuit, electrified regulation temperature is 320 DEG C, heat time heating time is 80 seconds, and the rated voltage of described alternating current circuit is 220V, and heating-up temperature regulates according to the resistance size of adjustable resistance in circuit；
(3), insulation: product is put into holding furnace inside holding 20 minutes, use air-cooled mode to be cooled to less than 50 DEG C subsequently.
Embodiment 2:
The annealing process of a kind of resistance to deformation spring, specifically includes following steps:
(1), pre-treatment: product carrying out pickling, removes surface impurity and oxide layer, dry subsequently, described pickling uses concentration to be the hydrochloric acid of 3-5%；
(2), annealing: product is put into and carries out electrified regulation process in alternating current circuit, electrified regulation temperature is 360 DEG C, heat time heating time is 40 seconds, and the rated voltage of described alternating current circuit is 220V, and heating-up temperature regulates according to the resistance size of adjustable resistance in circuit；
(3), insulation: product is put into holding furnace inside holding 30 minutes, use air-cooled mode to be cooled to less than 50 DEG C subsequently.
Embodiment 3:
The annealing process of a kind of resistance to deformation spring, specifically includes following steps:
(1), pre-treatment: product carrying out pickling, removes surface impurity and oxide layer, dry subsequently, described pickling uses concentration to be the hydrochloric acid of 3-5%；
(2), annealing: product is put into and carries out electrified regulation process in alternating current circuit, electrified regulation temperature is 340 DEG C, heat time heating time is 60 seconds, and the rated voltage of described alternating current circuit is 220V, and heating-up temperature regulates according to the resistance size of adjustable resistance in circuit；
(3), insulation: product is put into holding furnace inside holding 25 minutes, use air-cooled mode to be cooled to less than 50 DEG C subsequently.
Wherein, the length of described product is less than 20mm, prevents product long and cannot realize electrified regulation.
Being different from prior art, the annealing process of the present invention a kind of resistance to deformation spring makes annealing treatment by using electrically heated mode such that it is able to remove spring internal stress, deformation and the crackle tendency of spring is greatly decreased, easily facilitates follow-up processing.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (4)
1. the annealing process of a resistance to deformation spring, it is characterised in that specifically include following steps:
(1), pre-treatment: product is carried out pickling, removes surface impurity and oxide layer, dry subsequently；
(2), annealing: being put into by product and carry out electrified regulation process in alternating current circuit, electrified regulation temperature is 320-360 DEG C, and heat time heating time is the 40-80 second；
(3), insulation: product is put into holding furnace inside holding 20-30 minute, use air-cooled mode to be cooled to less than 50 DEG C subsequently.
The annealing process of resistance to deformation spring the most according to claim 1, it is characterised in that the rated voltage of described alternating current circuit is 220V.
The annealing process of resistance to deformation spring the most according to claim 1, it is characterised in that described pickling uses concentration to be the hydrochloric acid of 3-5%.
The annealing process of resistance to deformation spring the most according to claim 1, it is characterised in that the length of described product is less than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610627306.9A CN106011434A (en) | 2016-08-03 | 2016-08-03 | Annealing process of anti-deformation spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610627306.9A CN106011434A (en) | 2016-08-03 | 2016-08-03 | Annealing process of anti-deformation spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106011434A true CN106011434A (en) | 2016-10-12 |
Family
ID=57135216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610627306.9A Pending CN106011434A (en) | 2016-08-03 | 2016-08-03 | Annealing process of anti-deformation spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106011434A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199692A (en) * | 2010-03-23 | 2011-09-28 | 日本发条株式会社 | Method for heat treatment of coiled spring |
| CN102834530A (en) * | 2010-03-23 | 2012-12-19 | 中央发条株式会社 | Method for electrically heating spring, and device for same |
| CN103025897A (en) * | 2010-07-26 | 2013-04-03 | 中央发条株式会社 | Method for manufacturing spring and device for heating by passage of electric current |
-
2016
- 2016-08-03 CN CN201610627306.9A patent/CN106011434A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199692A (en) * | 2010-03-23 | 2011-09-28 | 日本发条株式会社 | Method for heat treatment of coiled spring |
| CN102834530A (en) * | 2010-03-23 | 2012-12-19 | 中央发条株式会社 | Method for electrically heating spring, and device for same |
| CN103025897A (en) * | 2010-07-26 | 2013-04-03 | 中央发条株式会社 | Method for manufacturing spring and device for heating by passage of electric current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |