CN101315092B - High-strength stainless steel rivets connection set and manufacturing technology thereof - Google Patents
High-strength stainless steel rivets connection set and manufacturing technology thereof Download PDFInfo
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- CN101315092B CN101315092B CN2007100414223A CN200710041422A CN101315092B CN 101315092 B CN101315092 B CN 101315092B CN 2007100414223 A CN2007100414223 A CN 2007100414223A CN 200710041422 A CN200710041422 A CN 200710041422A CN 101315092 B CN101315092 B CN 101315092B
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Abstract
The invention relates to a high-strength stainless steel rivet connect set and a production method thereof. The high-strength stainless steel rivet set comprises a rivet (1) made from reinforced stainless steel (1Cr17Ni2, etc.) and a rivet sleeve (2) made from non-reinforced stainless steel (0Cr18Ni9, etc.) and matched with the rivet (1). Because of adopting surface lubrication treatment, a rupture groove (b) finishing process and a new Ni-plating process on the surfaces of finished products, the rivet strength can reach 8-10 grades, which is similar to that of low-carbon steel. The inventive stainless steel rivet connect set has the advantages of no stress corrosion fracture, prolonged service life, reduced materials and processing cost (by 1/3), elegant appearance, rust protection, corrosion prevention, and harmony with environment; and is suitable for dead joint of components under impact, vibration or alternating load action, such as saloons, airplanes, railway saloon cars, subway carriages, offshore oil production platforms, wind power generation equipment, etc.
Description
Technical field:
The present invention relates to the non-disconnectable connection of mechanical component, especially adopt cold-extrusion technology, make rivet and riveting cover engagement all-in-one-piece high-strength rivet connection pair---be commonly called as ring-grooved rivet, special-purpose pulling rivet or Haake (HUCK) rivet.Still there are not international standard (ISO) and NBS (GB) at present.
Background technique:
The mechanical connection of general member adopts high-strength bolt to connect (the big hexagonal high-strength bolt in GB1228～1231) (GB3632～3633 torque-shear type high-strength bolts) in a large number.Because of its high strength, and large scale (M8～M30), clamping force is controlled, the superelevation pulling-out force, and application area enlarges day by day, and annual consumption reaches several hundred million.But the screw thread self-locking property is poor, and anti-loosening property is not high, in the connection under impact, vibrations, alternate load effect, is progressively replaced by high strength rivet (auxiliary connection).The characteristics of this auxiliary connection comprise:
1, the cold-extruded cover that presses makes it to nibble with rivet annular locking slot and is one, never becoming loose, and keep high-intensity performance.(as a comparison, hot riveting technique is equivalent to " annealing " to be handled, even the alloyed steel rivet also can't keep high-intensity performance).
2, (axially) clamping force of rivet breaking groove control connection pair makes it to keep constant unanimity.This operating mode to high-strength bolt is similar, and effect is identical.The difference of the two only is the construction tool difference.Can think that the high strength rivet is the upgrading new product of high-strength bolt.
Recently, in large aircraft, de luxe train, the decoration engineering, introduce stainless steel high strength rivet.Except that having These characteristics, this rivet also can be antirust, against corrosion, and specious, and long service life has the unique advantage that can not be substituted in many occasions.France's Pang Badi train and sample provide the relevant information of this rivet.
Find that behind market survey and technical testing stainless steel high strength rivet also has a fly in the ointment, existing brief introduction is as follows:
1, this rivet monomer intensity is not high, and auxiliary connection intensity is not good enough yet, is difficult to satisfy the high request of some member.In addition, distributors, manufacturer all can't provide the technology properties parameter, designed, select for use, purchase and cause difficulty.This is at wind-power electricity generation, bullet train, and in the use of offshore oil platform, immeasurable potential safety hazard especially.
It is investigated that 2, the maximum of this rivet directly through Φ max ≈ 19mm, had not both met international standard, Chinese Industrial Standards (CIS), can not satisfy the actual demand of large-scale component.Negative effect and sequelae are quite big.
3, the protective layer that there is no need of this rivet appearance under heavily stressed corrosive environment, may cause the stress corrosion fracture accident, has caused the attention of international industry.
4, on the high side, the consumer is limited, and the user has strong complaints.
5, import is loaded down with trivial details, and supply is failed to come out on time, and incurs loss through delay and produces.
Summary of the invention:
At the deficiency of above-mentioned stainless steel high strength rivet, the present invention proposes a kind of high-strength stainless steel rivets connection set and manufacturing process, attempt with home made materials, and simple and easy technology, manufacture cost is lower, and intensity is higher, the production domesticization rivet that the life-span is longer.And, meet relevant international standard, NBS, further improve standardization, generalization level, make technology for high-speed railway, large aircraft, city underground and prepare.
The present invention is achieved in that
1, selection: guarantee high strength, big specification series performance requirement.
2, adopt the sawtooth pattern circular groove to connect and cold-extrusion technology, guarantee rivet never becoming loose when engineering is used.
3, general stainless plastic deformation ability and intensity are more much lower than structural carbon steel.Now take corresponding annealing, solid solution, surface lubrication and heat treatment, simplified processing process improves the rivet connection pair combination property.
4, select suitable rivet, riveting cover performance and form size and breaking groove, guarantee the controlled and superelevation pulling-out force of clamping force of rivet connection pair.
5, plating Ni in surface has improved the corrosion resistance of rivet connection pair, reduces stress corrosion fracture.
Above-mentioned new material, new process, can obtain following effect:
1, the intensity of auxiliary connection is brought up to 8～10 grades, and cost reduces by 1/3.
2, enlarge auxiliary connection dimension series (Φ 6～Φ 24), and standardization.
3, finished product plating Ni prevents stress corrosion fracture hidden danger, improves surperficial corrosion, and is more attractive in appearance.
4, structural design, pattern size, strength grade all can freely be adjusted, and not limited by foeign element.
5, construction tool, detection facility all can production domesticization, seriation, standardization.
Below in conjunction with drawings and the embodiments, further specify the present invention.
Description of drawings:
Fig. 1 is the high-strength stainless steel rivets connection set schematic appearance.
Fig. 2 is the high-strength stainless steel rivets connection set scheme of installation.
Mode of execution:
As shown in Figure 1, rivet 1 has ailhead, polished rod successively and has the locking slot a of loop configuration, breaking groove b, kerve c, and each groove is not connected.Nominal diameter d.The riveting cover 2 that matches with it is hollow solid of rotation, internal orifice dimension D〉d, outer surface is bright and clean level and smooth.
Under the extruding of special-purpose riveting machine extrusion die, riveting is overlapped 2 internal orifice dimension D and is dwindled, and among the locking slot a of the engaging-in rivet 1 of endoporus material (Fig. 2), makes rivet 1 and riveting cover 2 be combined as a whole never becoming loose.Even under vibrations, alternate load effect, still keep high strength to connect, this is the great advantage of rivet connection pair.
Be necessary to point out that add up according to investigations, high-strength bolt uses under impact, vibrations condition, (as high speed rotating, railway speed increase, wind-force vibrates), bolt looseness and disease rate are about 30%, need maintenance stubborn again, and workload is huge, and quality be cannot say for sure to demonstrate,prove, and cost is high.Rivet connection pair is just in time made the most of the advantage, and guarantees never becoming loose, and is safe and reliable.
It is as follows that the manufacturing process of high-strength stainless Steel Rivet will be put division:
Embodiment 1
1, rivet 1
1) selection: heat-treatable strengthened stainless steel---1Cr17Ni2,0Cr17 etc.
A, rivet 1 quality big (account for auxiliary connection 3/4), the selection price is low, thereby cost significantly reduces.
B, because the selection heat treatment reinforcement is good, and the hardenability of size diameter rivet is all guaranteed, thereby after the tempering, intensity reaches 8～10 grades, can with low carbon steel, low alloy steel is than beautiful.Factory's bulk article has confirmed the reliability of above-mentioned process and performance.
2) technology point
A, ailhead temperature rammer moulding, behind the annealing softening, before bar portion contracted and obstructs, rivet 1 must be gone up cured, fat liquoring through surface treatment, increases surface lubrication, for follow-up cold hobbing operation is got ready.The size diameter rivet is handled equally.
B, finish bar portion and contract behind stalk and the locking slot a, kerve c cold hobbing, fine finishing breaking groove b guarantees that to given size clamping force is up to standard again, satisfies the need of high strength connections.
C, finished surface plating Ni are in case the stress corrosion fracture accident.---in Underground Test, the oil drilling, a lot of bolt fracture accidents have taken place.Plating Ni also can improve corrosion stability, aesthetic property, increases the service life.
2, the riveting cover 2
1) selection: not heat-treatable strengthened stainless steel---0Cr18Ni9,1Cr18Ni12 etc.
A, selection cold deformation drag are little, and easy deformation guarantees riveting cover 2 and rivet 1 cold hobbing meshing quality.
B, because of cold work hardening, riveting is overlapped 2 pulling-out forces and is brought up to 8～10 grades, surpasses the level of existing product, guarantees that join strength is fully reliable.
C, selection price height, but 2 quality little (accounting for auxiliary connection 1/4) are overlapped in riveting, and the cost increase is very little.Because the rivet cost range of decrease is big, the auxiliary connection overall cost can reduce by 1/3.
2) technology point
A, the moulding of hot rammer blank, behind the annealing softening, the moulding of finishing semi-finished product is finish-machined to given size again, guarantees that outer surface is bright and clean level and smooth, makes things convenient for subsequent processing.
Behind b, the annealing softening, surface treatment, last cured, fat liquoring increase surface lubrication, for cold hobbing is got ready.
C, finished surface plating Ni prevent stress corrosion and corrosion, improve the life-span, and be more attractive in appearance.
The simplification of this technology, reliability cut down finished cost to guaranteeing quality of product, and significant, bulk article has obtained customer acceptance.
1) selection: rivet 1, riveting cover 2 is all used can not hardened stainless steel---0Cr18Ni9,1Cr18Ni12 etc.
2) technology point:
A, rivet 1: press the general technology moulding, but the multistage cold work hardening of gradation (ailhead cold-heading, polished rod be cold rise thick, locking slot a, breaking groove b, kerve c are all cold extrusion shaped) can improve intensity and reach 8 grades.Finished surface plating Ni.
B, riveting cover 2: the blank moulding, finishing is finish-machined to size, and cured, fat liquoring is gone up in surface treatment, and cold hobbing improves intensity.Finished surface plating Ni.
Claims (1)
1. a high-strength stainless steel rivets connection set is made up of the rivet (1) of band shape structure locking slot (a), breaking groove (b), kerve (c) and the hollow solid of rotation riveting cover (2) that matches with it, it is characterized in that:
Rivet (1) but by hardened stainless steel---0Cr17 makes, and finished surface plating Ni, riveting cover (2) be by can not hardened stainless steel---0Cr18Ni9 makes, finished surface plating Ni;
Wherein, make described rivet (1) and comprising: rivet bar portion contracts before the stalk, and rivet is through surface treatment, waxes, fat liquoring; Finish rivet bar portion and contract behind stalk and the locking slot (a), kerve (c) cold hobbing, fine finishing breaking groove (b) is to given size again; Finished surface plating Ni;
Wherein, make riveting cover (2) and comprising: riveting cover (2) is finish-machined to given size, and behind the annealing softening, surface treatment is waxed, fat liquoring; Finished surface plating Ni.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100414223A CN101315092B (en) | 2007-05-29 | 2007-05-29 | High-strength stainless steel rivets connection set and manufacturing technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100414223A CN101315092B (en) | 2007-05-29 | 2007-05-29 | High-strength stainless steel rivets connection set and manufacturing technology thereof |
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| CN101315092A CN101315092A (en) | 2008-12-03 |
| CN101315092B true CN101315092B (en) | 2011-04-13 |
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| CN2007100414223A Expired - Fee Related CN101315092B (en) | 2007-05-29 | 2007-05-29 | High-strength stainless steel rivets connection set and manufacturing technology thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840205A (en) * | 2011-06-22 | 2012-12-26 | 彭亮生 | Bobtail high strength rivet connection pair and manufacturing method thereof |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500729B (en) * | 2011-10-24 | 2014-04-09 | 陕西天达航空标准件有限公司 | Rolling method for ring-grooved rivet |
| CN104100622B (en) * | 2013-04-08 | 2017-02-15 | 彭亮生 | Large-scale and high-intensity rivet connection pair and manufacturing method thereof |
| CN106222394A (en) * | 2016-08-31 | 2016-12-14 | 株洲春华实业有限责任公司 | A kind of Technology for Heating Processing of BOM rivet collar |
| CN111571143B (en) * | 2020-05-26 | 2022-03-04 | 王丽 | Self-plugging rivet manufacturing process |
| CN111421309A (en) * | 2020-05-26 | 2020-07-17 | 王丽 | Titanium alloy hake rivet manufacturing process |
| CN111571142B (en) * | 2020-05-26 | 2021-12-14 | 王丽 | Manufacturing process of bulge type titanium alloy blind rivet |
| CN113482999A (en) * | 2021-07-05 | 2021-10-08 | 航天精工股份有限公司 | High-strength rivet resistant to high temperature and corrosion and easy to rivet and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211511Y (en) * | 1994-12-25 | 1995-11-01 | 叶大方 | Cold rivet |
| CN1807907A (en) * | 2005-12-13 | 2006-07-26 | 上海冠华科技有限公司 | High-strength rivet connection pair |
| CN2830751Y (en) * | 2005-09-02 | 2006-10-25 | 温州铁豹紧固件有限公司 | Circular slot rivet |
-
2007
- 2007-05-29 CN CN2007100414223A patent/CN101315092B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211511Y (en) * | 1994-12-25 | 1995-11-01 | 叶大方 | Cold rivet |
| CN2830751Y (en) * | 2005-09-02 | 2006-10-25 | 温州铁豹紧固件有限公司 | Circular slot rivet |
| CN1807907A (en) * | 2005-12-13 | 2006-07-26 | 上海冠华科技有限公司 | High-strength rivet connection pair |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2000-345304A 2000.12.12 |
| 工程材料实用手册编辑委员会.工程材料实用手册（结构钢、不锈钢分册） 第一版.中国标准出版社,1988,第643-644页，第800-801页. |
| 工程材料实用手册编辑委员会.工程材料实用手册(结构钢、不锈钢分册) 第一版.中国标准出版社,1988,第643-644页,第800-801页. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840205A (en) * | 2011-06-22 | 2012-12-26 | 彭亮生 | Bobtail high strength rivet connection pair and manufacturing method thereof |
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| CN101315092A (en) | 2008-12-03 |
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Owner name: SHANGHAI JINMA HIGH STRENGTH FASTENER CO., LTD. Free format text: FORMER OWNER: PENG LIANGSHENG Effective date: 20110325 |
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Free format text: CORRECT: ADDRESS; FROM: 200050 405/12-204, WEST ZHU'ANBANG ROAD, CHANGNING DISTRICT, SHANGHAI TO: 201206 NO. 1831, JINGAO ROAD, PUDONG NEW DISTRICT, SHANGHAI |
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Effective date of registration: 20110325 Address after: 201206 Shanghai city Pudong New Area High Road No. 1831 Applicant after: Shanghai Jinma High Strength Fastener Co.,Ltd. Address before: 200050 Shanghai city Changning District West Robinson road 405/12-204 Applicant before: Peng Liangsheng |
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