CN112589398A - Processing technology of high-temperature-resistant water inlet valve spring - Google Patents
Processing technology of high-temperature-resistant water inlet valve spring Download PDFInfo
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- CN112589398A CN112589398A CN202011592050.5A CN202011592050A CN112589398A CN 112589398 A CN112589398 A CN 112589398A CN 202011592050 A CN202011592050 A CN 202011592050A CN 112589398 A CN112589398 A CN 112589398A
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- spring
- water inlet
- inlet valve
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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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Springs (AREA)
Abstract
A processing technology of a high-temperature resistant water inlet valve spring comprises the following steps: selecting materials, namely selecting proper spring steel raw materials; coiling and cutting a spring, and quickly coiling, forming and cutting a spring steel wire; deburring, namely grinding and polishing the workpiece by using grinding and polishing equipment; heat treatment, tempering treatment is carried out by adopting vacuum tempering equipment; shot peening and pressing and shaping, namely repeatedly striking the surface of the spring material by using shots, and then fixing and pressing and shaping; electrostatic spraying, wherein a copper coating is formed on the surface of the spring to form coating; installing a silica gel waterproof sleeve; finally, classified packaging is carried out; the required section is determined according to the requirements, the shock resistance and the high temperature resistance of the product are guaranteed, the forming is fast, the product is polished and deburred after being cut, the product quality is improved, the strength and the toughness of the product are improved after the working procedures of heat treatment, shot peening strengthening and pressing and forming, and the section can have good waterproof performance in a high-temperature water inlet valve under the action of a copper coating and a silica gel waterproof sleeve.
Description
Technical Field
The invention relates to the technical field of spring processing technologies, in particular to a processing technology of a high-temperature-resistant water inlet valve spring.
Background
The spring is a common part with wide application, is mainly used for damping, clamping, storing energy, measuring force and the like, and is characterized in that the spring can be immediately restored after external force is removed; the compression spring is a spiral spring bearing pressure, the cross section of the material used by the compression spring is mostly circular, and the compression spring is also coiled by rectangular and multi-strand steel; because the application fields are different, the purposes are different, the strength and the rigidity of the used compression spring are different, the service life of the compression spring is also different, the manufacturing process of the compression spring is different, and the spring is also one of the main components in the high-temperature water inlet valve.
At present, due to the high-temperature and high-humidity characteristics of a high-temperature water inlet valve, a spring processed by common steel is difficult to apply, so that the service life of the spring is shortened after the spring is heated and corroded, the failure rate of the water inlet valve is increased, the defects of wrinkles, burrs, small cracks and the like exist in the processing process of the spring, the spring is not thoroughly and finely processed, the product quality is poor, and the impact resistance is weak.
Disclosure of Invention
Objects of the invention
The process determines the required section bar according to the requirement, ensures the shock resistance and the high temperature resistance of the product, is fast in forming, is cut, is polished and deburred, improves the product quality, improves the strength and the toughness of the product after the working procedures of heat treatment, shot peening strengthening and pressing and shaping, and can have good waterproof performance in the high-temperature water inlet valve under the action of a copper coating and a silica gel waterproof sleeve.
(II) technical scheme
In order to solve the problems, the invention provides a processing technology of a high-temperature resistant water inlet valve spring, which comprises the following steps:
s1: selecting materials, selecting proper spring steel raw materials, determining the type and the length of the cross section of the spring steel raw materials, performing sampling inspection on the spring steel raw materials, and judging whether impurities are contained or not;
s2: coiling and slitting a spring, winding and forming a spring steel wire through a spring coiling machine, and slitting the spring steel wire by a cutter for specified turns after detecting that the prefabricated pitch of the spring reaches a design standard;
s3: deburring, namely concentrating the cut springs, and grinding and polishing the springs by grinding and polishing equipment;
s4: performing heat treatment, namely tempering by adopting vacuum tempering equipment, controlling the temperature in a tempering furnace to be 400-465 ℃ and continuing for 25 minutes, and placing the tempered spring into a heat preservation box to preserve heat for 40-60 minutes;
s5: shot peening strengthening and pressing forming, wherein in the shot peening work of the shot peening machine, the surface of the spring material is repeatedly struck by shots, finally, a plastic deformation strengthening layer is formed near the surface of the spring, and then, the fixed pressing forming is carried out;
s6: and (4) electrostatic spraying, wherein electrostatic powder is uniformly adsorbed on the surface of the spring through electrostatic spraying equipment to form coating.
S7: installing a waterproof sleeve, detecting again, and sleeving the qualified spring sleeve with the waterproof sleeve;
s8; packaging, namely packaging the springs with different sizes and specifications in batches and warehousing
Preferably, in step S1, the spring steel raw material may be one of 60Si2MnA, 50CrVA, QBe2 or 30W4CrlVA, and the spring steel raw material may be one of circular or rectangular in cross-section.
Preferably, in step S2, the cut spring cuts and grinds the two ends of the end of the spring by a cutting machine, screens out the part for detecting that the pre-manufactured pitch of the spring does not reach the standard, and then reworks or recovers the part.
Preferably, in step S3, the grinding and polishing device may be one of a magnetic polisher, a centrifugal grinder or a vibration grinder with a capacity of 100L, and the grinding and polishing time is 5-60 minutes.
Preferably, in step S4, the temperature of the incubator is controlled to 300 to 420 ℃.
Preferably, in S5, the working time of the shot blasting machine is 50-200 seconds, the spring after shot blasting strengthening is sleeved on the steel core cylinder and is fixed and then is compressed, and the heat preservation is carried out for 30 minutes and the shape is formed at the temperature of 200-350 ℃ in the heat preservation box.
Preferably, in step S6, the electrostatic powder is copper powder to form a copper coating.
Preferably, the waterproof sleeve in the step S7 is a silica gel sleeve, and the end-to-end hot-pressing sealing is performed after the spring is sleeved.
The technical scheme of the invention has the following beneficial technical effects: the required section bar is determined according to the requirement, the selected material of the device has good impact resistance and high temperature resistance, the forming is rapid and convenient, the grinding and deburring are carried out after the cutting, the product quality is improved, the strength and the toughness of the product are improved after the heat treatment, shot peening strengthening and pressing and shaping processes are carried out, a copper coating is formed after the electrostatic coating, and meanwhile, the device can have good waterproof performance in a high-temperature water inlet valve by matching with a silica gel waterproof sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The invention provides a processing technology of a high-temperature resistant water inlet valve spring, which comprises the following steps: s1: selecting materials, selecting proper spring steel raw materials, determining the type and the length of the cross section of the spring steel raw materials, performing sampling inspection on the spring steel raw materials, and judging whether impurities are contained or not;
s2: coiling and slitting a spring, winding and forming a spring steel wire through a spring coiling machine, and slitting the spring steel wire by a cutter for specified turns after detecting that the prefabricated pitch of the spring reaches a design standard;
s3: deburring, namely concentrating the cut springs, and grinding and polishing the springs by grinding and polishing equipment;
s4: performing heat treatment, namely tempering by adopting vacuum tempering equipment, controlling the temperature in a tempering furnace to be 400-465 ℃ and continuing for 25 minutes, and placing the tempered spring into a heat preservation box to preserve heat for 40-60 minutes;
s5: shot peening strengthening and pressing forming, wherein in the shot peening work of the shot peening machine, the surface of the spring material is repeatedly struck by shots, finally, a plastic deformation strengthening layer is formed near the surface of the spring, and then, the fixed pressing forming is carried out;
s6: and (4) electrostatic spraying, wherein electrostatic powder is uniformly adsorbed on the surface of the spring through electrostatic spraying equipment to form coating.
S7: installing a waterproof sleeve, detecting again, and sleeving the qualified spring sleeve with the waterproof sleeve;
s8; packaging, namely packaging the springs with different sizes and specifications in batches and warehousing
In an alternative embodiment, in step S1, the spring steel material may be one of 60Si2MnA, 50CrVA, QBe2, or 30W4CrlVA, which has excellent shock resistance and high temperature resistance, and the spring steel material may be one of circular or rectangular in cross section, so that the circular cross section is more conveniently machined, and the square cross section has a smaller volume, and is suitable for installation in a small space.
In an alternative embodiment, in step S2, the cut spring is cut and ground at both ends of the final end by a cutting machine, and the part for detecting that the spring pre-manufacturing pitch is not up to standard is screened out, and then reworked or recycled.
In an alternative embodiment, in step S3, the grinding and polishing device may be one of a magnetic polisher, a centrifugal grinder or a vibration grinder with a capacity of 100L, and the grinding and polishing time is 5-60 minutes.
In an alternative embodiment, the temperature of the incubator is controlled to 300-420 ℃ in step S4.
In an optional embodiment, in S5, the working time of the shot-blasting machine is 50 to 200 seconds, the spring sleeve after shot-blasting strengthening is fixed on the steel core cylinder and then compressed, and the steel core cylinder is insulated in the insulation box at a temperature of 200 to 350 ℃ for 30 minutes to shape.
In an alternative embodiment, the electrostatic powder is copper powder to form a copper coating in step S6.
In an alternative embodiment, the waterproof sleeve in step S7 is a silicone sleeve, and the spring is sleeved and then subjected to head-to-tail hot-pressing sealing.
The device has the advantages that the required section is determined according to requirements, the selected material has good impact resistance and high temperature resistance, the device can be quickly and conveniently formed, the product is polished and deburred after being cut, the product quality is improved, the strength and toughness of the product are improved after the processes of heat treatment, shot peening strengthening and compression forming are carried out, a copper coating is formed after the electrostatic coating, and meanwhile, the device can have good waterproof performance in a high-temperature water inlet valve by matching with a silica gel waterproof sleeve.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. A processing technology of a high-temperature resistant water inlet valve spring is characterized by comprising the following steps:
s1: selecting materials, selecting proper spring steel raw materials, determining the type and the length of the cross section of the spring steel raw materials, performing sampling inspection on the spring steel raw materials, and judging whether impurities are contained or not;
s2: coiling and slitting a spring, winding and forming a spring steel wire through a spring coiling machine, and slitting the spring steel wire by a cutter for specified turns after detecting that the prefabricated pitch of the spring reaches a design standard;
s3: deburring, namely concentrating the cut springs, and grinding and polishing the springs by grinding and polishing equipment;
s4: performing heat treatment, namely tempering by adopting vacuum tempering equipment, controlling the temperature in a tempering furnace to be 400-465 ℃ and continuing for 25 minutes, and placing the tempered spring into a heat preservation box to preserve heat for 40-60 minutes;
s5: shot peening strengthening and pressing forming, wherein in the shot peening work of the shot peening machine, the surface of the spring material is repeatedly struck by shots, finally, a plastic deformation strengthening layer is formed near the surface of the spring, and then, the fixed pressing forming is carried out;
s6: electrostatic spraying, wherein electrostatic powder is uniformly adsorbed on the surface of the spring through electrostatic spraying equipment to form coating;
s7: installing a waterproof sleeve, detecting again, and sleeving the qualified spring sleeve with the waterproof sleeve;
s8; and (4) packaging, namely packaging the springs with different sizes and specifications in batches and warehousing.
2. The process of claim 1, wherein in step S1, the spring steel is selected from 60Si2MnA, 50CrVA, QBe2 or 30W4CrlVA, and the cross section of the spring steel is circular or rectangular.
3. The process for processing the spring with the high temperature resistant water inlet valve according to the claim 1, wherein in the step S2, the cut spring is cut and ground at the two ends of the ending part by a cutting machine, the part for detecting the unqualified prefabrication pitch of the spring is screened out, and then reworking or recycling is carried out.
4. The process of claim 1, wherein in the step S3, the grinding and polishing device is selected from a magnetic polisher, a centrifugal grinder or a vibration grinder with a capacity of 100L, and the grinding and polishing time is 5-60 minutes.
5. The process for manufacturing a spring with a high temperature resistant water inlet valve according to claim 1, wherein in step S4, the temperature of the heat preservation box is controlled to 300-420 ℃.
6. The process for processing the spring of the high temperature resistant water inlet valve according to claim 1, wherein in the step S5, the working time of the shot blasting machine is 50-200 seconds, the spring after shot blasting reinforcement is sleeved on the steel core cylinder and fixed, then the spring is compressed, and the heat preservation is carried out in the heat preservation box at the temperature of 200-350 ℃ for 30 minutes for shaping.
7. The process of claim 1, wherein in step S6, the electrostatic powder is copper powder to form a copper coating.
8. The process for manufacturing a spring as claimed in claim 1, wherein the waterproof case is a silicone case in step S7, and the spring is covered and then sealed by hot pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011592050.5A CN112589398A (en) | 2020-12-29 | 2020-12-29 | Processing technology of high-temperature-resistant water inlet valve spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011592050.5A CN112589398A (en) | 2020-12-29 | 2020-12-29 | Processing technology of high-temperature-resistant water inlet valve spring |
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| Publication Number | Publication Date |
|---|---|
| CN112589398A true CN112589398A (en) | 2021-04-02 |
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| CN202011592050.5A Pending CN112589398A (en) | 2020-12-29 | 2020-12-29 | Processing technology of high-temperature-resistant water inlet valve spring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510444A (en) * | 2021-05-18 | 2021-10-19 | 福建永动力弹簧科技有限公司 | Auger spring production process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125402A (en) * | 2007-10-10 | 2008-02-20 | 大连弹簧有限公司 | Method for processing heat coiling spring whose spring wire diameter is 90 millimeter |
| CN101642867A (en) * | 2009-07-30 | 2010-02-10 | 杭州钱江弹簧有限公司 | Technique for processing engine valve spring |
| US20110074079A1 (en) * | 2009-09-29 | 2011-03-31 | Chuo Hatsujo Kabushiki Kaisha | Coil spring for automobile suspension and method of manufacturing the same |
| CN102380755A (en) * | 2011-05-13 | 2012-03-21 | 龙德福 | Processing technique for pump-nozzle plunger spring of diesel engine |
| CN102451977A (en) * | 2010-10-19 | 2012-05-16 | 现代自动车株式会社 | High strength valve spring for vehicle engine and method of manufacturing the same |
| CN104400348A (en) * | 2014-11-03 | 2015-03-11 | 常宁市福宏弹簧有限公司 | Turbocharging executing device spring processing process |
| CN109531071A (en) * | 2018-12-25 | 2019-03-29 | 重庆旺达汽车零部件有限公司 | A kind of nut production technology |
-
2020
- 2020-12-29 CN CN202011592050.5A patent/CN112589398A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125402A (en) * | 2007-10-10 | 2008-02-20 | 大连弹簧有限公司 | Method for processing heat coiling spring whose spring wire diameter is 90 millimeter |
| CN101642867A (en) * | 2009-07-30 | 2010-02-10 | 杭州钱江弹簧有限公司 | Technique for processing engine valve spring |
| US20110074079A1 (en) * | 2009-09-29 | 2011-03-31 | Chuo Hatsujo Kabushiki Kaisha | Coil spring for automobile suspension and method of manufacturing the same |
| CN102451977A (en) * | 2010-10-19 | 2012-05-16 | 现代自动车株式会社 | High strength valve spring for vehicle engine and method of manufacturing the same |
| CN102380755A (en) * | 2011-05-13 | 2012-03-21 | 龙德福 | Processing technique for pump-nozzle plunger spring of diesel engine |
| CN104400348A (en) * | 2014-11-03 | 2015-03-11 | 常宁市福宏弹簧有限公司 | Turbocharging executing device spring processing process |
| CN109531071A (en) * | 2018-12-25 | 2019-03-29 | 重庆旺达汽车零部件有限公司 | A kind of nut production technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510444A (en) * | 2021-05-18 | 2021-10-19 | 福建永动力弹簧科技有限公司 | Auger spring production process |
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