CN110529488A - A kind of exhaust pipe spacer for bolt external member and its manufacturing method that high temperature resistant is anti-loosening - Google Patents
A kind of exhaust pipe spacer for bolt external member and its manufacturing method that high temperature resistant is anti-loosening Download PDFInfo
- Publication number
- CN110529488A CN110529488A CN201910884797.9A CN201910884797A CN110529488A CN 110529488 A CN110529488 A CN 110529488A CN 201910884797 A CN201910884797 A CN 201910884797A CN 110529488 A CN110529488 A CN 110529488A
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- China
- Prior art keywords
- gasket
- bolt
- bastard
- exhaust pipe
- loosening
- 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
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 8
- 238000005496 tempering Methods 0.000 claims description 8
- 238000005098 hot rolling Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 102000011842 Serrate-Jagged Proteins Human genes 0.000 description 1
- 108010036039 Serrate-Jagged Proteins Proteins 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical group 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a kind of exhaust pipe spacer for bolt external members that high temperature resistant is anti-loosening, including bolt body and gasket, one end of the gasket is equipped with gasket bastard, the other end of the gasket is equipped with gasket serration, is provided with bolt bastard compatible with the gasket bastard at the flange loading end of the bolt body bolt head；Through-hole is equipped at the center of the gasket, the diameter dimension of the through-hole is 0.4~0.6mm bigger than the diameter dimension of bolt body neck, and the threaded shank rolled thread molding of the bolt body is provided with screw thread, and the major diameter of thread is greater than the diameter of the through-hole.The invention also discloses a kind of manufacturing methods of exhaust pipe spacer for bolt external member that high temperature resistant is anti-loosening.High temperature resistant of the invention anti-loosening exhaust pipe spacer for bolt external member and its manufacturing method, gasket use high-temperature steel material, and intensity is high, wear-resisting property is good, enhance coefficient of friction, anti-loose effect is played, can effectively stop the movement of gasket, gasket neglected loading and anti-loaded possibility can be prevented.
Description
Technical field
The present invention relates to engine components production technical fields, more specifically, it relates to which a kind of high temperature resistant is anti-loosening
Exhaust pipe spacer for bolt external member and its manufacturing method.
Background technique
The bolt and gasket that hot environment uses, bolt are hexagonal flange bearing surface band bastard bolt, and material uses alloy
Structural steel (25Cr2MoVA), technique are as follows: hot upsetting+quenched+mill string diameter+flaw detection+rolled thread+phosphatization, hot upsetting process bearing surface tooth is also simultaneously
Molding；Gasket is the two sides of stainless steel (316L) material respectively with thick, serrate profile gasket, is stamped to form.
Bolt matches Upper gasket, and the bastard one side of gasket and the bolt of bearing surface bastard cooperate, and clamps turret head with tightening tool
It tightens, exhaust pipe is fixed tightly on cylinder cap.Under hot operation, the two sides tooth on gasket is easily driven plain, bolt looseness.And this dress
With there are the risks of neglected loading gasket or anti-loaded gasket.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the above-mentioned deficiency of the prior art, an object of the present invention is to provide
A kind of anti-neglected loading and the anti-loosening exhaust pipe spacer for bolt external member of anti-loaded high temperature resistant.
The second object of the present invention is to provide a kind of manufacturing method of exhaust pipe spacer for bolt external member that high temperature resistant is anti-loosening.
To achieve the above object one, the present invention provides a kind of exhaust pipe spacer for bolt external member that high temperature resistant is anti-loosening, packets
Bolt body and gasket are included, one end of the gasket is equipped with gasket bastard, and the other end of the gasket is equipped with gasket serration, described
Bolt bastard compatible with the gasket bastard is provided at the flange loading end of bolt body bolt head；The gasket
Through-hole is equipped at center, the diameter dimension of the through-hole is bigger than the diameter dimension of bolt body neck, the spiral shell of the bolt body
Bar portion rolled thread molding is provided with screw thread, and the major diameter of thread is greater than the diameter of the through-hole.
Further, the gasket serration is 10 ° at angle α with gasket radial direction；The gasket bastard and gasket it is radial at
Angle theta is 3 °；Gasket bastard setting contrary with the tooth form of gasket serration.
Further, it is equipped between the gasket bastard of the gasket and the bolt bastard of bolt body and bonds the two
Glue.
To achieve the above object two, the present invention also provides a kind of exhaust pipe spacer for bolt external members that high temperature resistant is anti-loosening
Manufacturing method, which comprises firstly, bolt bastard is arranged at the flange loading end of bolt body bolt head, and make
Make the gasket with gasket bastard, gasket serration；Secondly, through-hole is arranged at the center of the gasket, gasket is set in bolt
The neck of ontology simultaneously cooperates bolt bastard and gasket bastard, then forms to obtain in the threaded shank progress rolled thread of bolt body outer
The diameter diameter screw thread bigger than through-hole internal diameter, obtains spacer for bolt external member.
Further, the gasket serration is 10 ° at angle α with gasket radial direction；The gasket bastard and gasket it is radial at
Angle theta is 3 °.
Further, gasket bastard setting contrary with the tooth form of gasket serration.
Further, the major diameter of thread after the threaded shank rolled thread of the bolt body is greater than the neck and through-hole
Diameter.
Further, glue is set between the gasket bastard of the gasket and the bolt bastard of bolt body by the two
Bonding.
As a further improvement, the gasket manufacture the step of include:
1) plate under:
A. selecting structural alloy steel is raw material, and the raw material trade mark is 25Cr2MoVA；
B. steel plate is obtained by hot-roll forming to raw material, and is handled by high tempering；Finishing temperature is controlled when hot rolling
At 900~1000 DEG C, it is then air-cooled to room temperature；The high tempering, temperature are 620~660 DEG C, 4~5 hours of time, so
After be cooled to room temperature；
C. the steel plate eliminates oxide skin, manufactured gasket plate through twin polishing；
2) gasket blank is made in punch forming:
Using the upper and lower mold with bastard, serration, forming gasket is stamped out on press machine；
3) nitrogen treatment:
By gasket through over cleaning, oil removing, derusting, drying, nitridation heating temperature is 530~550 DEG C, keeps the temperature 4~5 hours,
200 DEG C are cooled to the furnace with 20 DEG C/h~35 DEG C/h speed, are then come out of the stove air-cooled.
When further, by gasket nitrogen treatment, 200 DEG C are cooled to the furnace with 25 DEG C/h speed, is then come out of the stove air-cooled.
Beneficial effect
Compared with prior art, anti-loosening high temperature resistant of the invention anti-loosening exhaust pipe spacer for bolt external member and its system
Make having the beneficial effect that for method:
1) the anti-loosening exhaust pipe spacer for bolt of this high abrasion is reasonable in design, and gasket uses high-temperature steel material
Material, and hot rolling and surfaces nitrided processing have been carried out, by the material improvement and surface peening to check washer, it is whole to improve gasket
The wear-resisting property of body intensity and the flank of tooth enhances thick both ends, serration face and the coefficient of friction between connected piece exhaust pipe, plays
Anti-loose effect；
2) by the positioning to check washer and bolt, the movement of gasket, pad when prevention bolt is tightened effectively are prevented
Piece unbalance stress reduces the risk of gasket fracture；Positioning is convenient, is easy to implement, at low cost, and can prevent gasket neglected loading and anti-loaded
Possibility；
3) gasket of this manufacturing method manufacture, by utilizing hot rolling plate, high tempering replaces previous modifier treatment, punching press
Molding is i.e. thick, serration straight forming, reduces manufacturing procedure, surfaces nitrided processing improve gasket is thick, hardness of serration and deform
Little, center portion retains toughness, improves the intensity of gasket, longer life expectancy, safety is higher, while improving production efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the anti-loosening exhaust pipe spacer for bolt external member of high temperature resistant of the invention；
Fig. 2 is the partial structurtes enlarged drawing of bolt in the present invention；
Fig. 3 is the structural perspective of gasket in the present invention；
Fig. 4 is the structural front view of gasket in the present invention.
In figure: 1, gasket；2, gasket bastard；3, gasket serration；4, bolt body；401, neck；402, screw thread；403, spiral shell
Bolt bastard；5, through-hole.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
A specific embodiment of the invention is such that as shown in Figs 1-4, a kind of exhaust pipe bolt that high temperature resistant is anti-loosening
Pad kit, including bolt body 4 and gasket 1, gasket 1 are alloy steel construction, and one end of gasket 1 is equipped with gasket bastard 2, gasket
1 other end is equipped with gasket serration 3, is provided at the flange loading end of 4 bolt head of bolt body and is adapted with gasket bastard 2
Bolt bastard 403；Through-hole 5, the diameter of the diameter dimension of through-hole 5 than 4 neck 401 of bolt body are equipped at the center of gasket 1
The threaded shank rolled thread molding of the big 0.4~0.6mm of size, bolt body 4 are provided with screw thread 402, and 402 outer diameter of screw thread is greater than through-hole 5
Diameter.In this spacer for bolt external member, by the material improvement and surface peening to check washer, it is whole strong to improve gasket 1
The wear-resisting property of degree and the flank of tooth enhances thick both ends, serration face and the coefficient of friction between connected piece exhaust pipe, plays locking
Effect；By the positioning to check washer 1 and bolt, effectively prevent the movement of gasket, when prevention bolt is tightened gasket by
Power is uneven, reduces the risk of gasket fracture.Positioning is convenient, is easy to implement, at low cost, and can prevent neglected loading and anti-loaded possibility.
In the present embodiment, gasket serration 3 is 10 ° at angle α with gasket radial direction；Gasket bastard 2 and gasket are radial at folder
Angle θ is 3 °；The setting contrary with the tooth form of gasket serration 3 of gasket bastard 2.Due to the bolt head flange in bolt body 4
Bearing surface has bastard, has the gasket bastard 2 of cooperation in the one side of gasket 1, another side has gasket serration 3, twists when bolt
Next, the gasket serration 3 on gasket 1 can be pressed into certain depth on connected piece exhaust pipe, and bolt threaded shank has been screwed into
Cylinder cap screw hole has certain length of fit, while the bastard on bolt has been engaged with the gasket bastard 2 of gasket 1, the opposite position of three
It sets and is just defined, bolt loosens again to be not easy very much.
In the present embodiment, it is equipped between the gasket bastard 2 of gasket 1 and the bolt bastard 403 of bolt body 4 and glues the two
The glue of knot.
A kind of manufacturing method for the exhaust pipe spacer for bolt external member that high temperature resistant is anti-loosening, method includes: firstly, in bolt sheet
Bolt bastard 403 is set at the flange loading end of 4 bolt head of body, and manufactures the gasket with gasket bastard 2, gasket serration 3
1；Secondly, through-hole 5 is arranged at the center of gasket 1, the diameter dimension of through-hole 5 is bigger than the diameter dimension of 4 neck 401 of bolt body
0.4~0.6mm；Gasket 1 is set in the neck 401 of bolt body 4 and cooperates bolt bastard 403 with gasket bastard 2, then
Rolled thread is carried out in the threaded shank of bolt body 4 to form to obtain the outer diameter diameter screw thread 402 bigger than 5 internal diameter of through-hole, obtains bolting pad
Piece external member.Screw thread rolled thread processing and integrated phosphatization are carried out, constitutes bolt assembly, structural strength is high, and not easy to wear, threaded shank is being rolled
It ensure that gasket 1 is unable to free dropping after silk, will not there is neglected loading and anti-loaded possibility.
In the present embodiment, gasket serration 3 is 10 ° at angle α with gasket radial direction；Gasket bastard 2 and gasket are radial at folder
Angle θ is 3 °, plays the role of locking.
In the present embodiment, the setting contrary with the tooth form of gasket serration 3 of gasket bastard 2.
In the present embodiment, 402 outer diameter of screw thread after the threaded shank rolled thread of bolt body 4 is greater than neck 401 and through-hole 5
Diameter.
In the present embodiment, glue is arranged between the gasket bastard 2 of gasket 1 and the bolt bastard 403 of bolt body 4 will
The two bonding.Before spacer for bolt external member is tightened, using glue gasket 1 and bolt head adhesion, guarantee assembling process gasket 1
With bolt without relative movement, bastard is correctly engaged with bolt bearing surface tooth.
In the present embodiment, gasket 1 manufacture the step of include:
1) plate under:
A. selecting structural alloy steel is raw material, and the raw material trade mark is 25Cr2MoVA；
B. steel plate is obtained by hot-roll forming to raw material, and is handled by high tempering；Finishing temperature is controlled when hot rolling
At 900~1000 DEG C, it is then air-cooled to room temperature；High tempering, temperature is 620~660 DEG C, 4~5 hours of time, then cold
To room temperature；
C. steel plate eliminates oxide skin, manufactured gasket plate through twin polishing；
2) gasket blank is made in punch forming:
Using the upper and lower mold with bastard, serration, forming gasket 1 is stamped out on press machine；
3) nitrogen treatment:
By gasket 1 through over cleaning, oil removing, derusting, drying, nitridation heating temperature is 530~550 DEG C, keeps the temperature 4~5 hours,
200 DEG C are cooled to the furnace with 20 DEG C/h~35 DEG C/h speed, are then come out of the stove air-cooled.
By utilizing hot rolling plate, high tempering replaces previous modifier treatment.Punch forming is thick, serration straight forming,
Reduce manufacturing procedure, surfaces nitrided processing improve gasket is thick, hardness of serration and deform little, center portion retains toughness.It improves
The intensity of gasket 1, longer life expectancy, safety is higher, while improving production efficiency.
The gasket 1 of this manufacturing method manufacture is simple and reasonable, and by taking high temperature resistant steel to be rolled into plate, high temperature is returned
Fire processing, punch forming add nitride forms to substitute original stainless steel mode, prevent that gasket is thick, serration intensity is insufficient, thermal deformation, spiral shell
Bolt falls torque and loosens problem, improves the sealing reliability between each cylinder exhaust outlet flange face of exhaust pipe and cylinder cap.
When in the present embodiment, by 1 nitrogen treatment of gasket, 200 DEG C are cooled to the furnace with 25 DEG C/h speed, sky of then coming out of the stove
It is cold.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, is not taking off
Under the premise of from structure of the invention, several modifications and improvements can also be made, these all will not influence the effect that the present invention is implemented
And patent practicability.
Claims (10)
1. a kind of exhaust pipe spacer for bolt external member that high temperature resistant is anti-loosening, including bolt body (4) and gasket (1), feature exists
In one end of the gasket (1) is equipped with gasket bastard (2), and the other end of the gasket (1) is equipped with gasket serration (3), the spiral shell
The compatible bolt bastard (403) with the gasket bastard (2) is provided at the flange loading end of bolt ontology (4) bolt head；
Through-hole (5) are equipped at the center of the gasket (1), the diameter dimension of the through-hole (5) is than bolt body (4) neck (401)
Diameter dimension is big, and the threaded shank rolled thread molding of the bolt body (4) is provided with screw thread (402), and screw thread (402) outer diameter is big
Diameter in the through-hole (5).
2. a kind of anti-loosening exhaust pipe spacer for bolt external member of high temperature resistant according to claim 1, which is characterized in that described
Gasket serration (3) is 10 ° at angle α with gasket radial direction；The gasket bastard (2) is 3 ° at angle theta with gasket radial direction；The pad
Piece bastard (2) setting contrary with the tooth form of gasket serration (3).
3. a kind of anti-loosening exhaust pipe spacer for bolt external member of high temperature resistant according to claim 2, which is characterized in that described
The glue for bonding the two is equipped between the gasket bastard (2) of gasket (1) and the bolt bastard (403) of bolt body (4).
4. a kind of manufacturing method for the exhaust pipe spacer for bolt external member for realizing that high temperature resistant described in claim 1 is anti-loosening, special
Sign is, which comprises firstly, bolt bastard is arranged at the flange loading end of bolt body (4) bolt head
(403), and the gasket (1) with gasket bastard (2), gasket serration (3) is manufactured；Secondly, being arranged at the center of the gasket (1)
Gasket (1) is set in the neck (401) of bolt body (4) and matches bolt bastard (403) with gasket bastard (2) by through-hole (5)
It closes, then carries out rolled thread in the threaded shank of bolt body (4) and form to obtain the outer diameter diameter screw thread bigger than through-hole (5) internal diameter
(402), spacer for bolt external member is obtained.
5. a kind of manufacturing method of the anti-loosening exhaust pipe spacer for bolt external member of high temperature resistant according to claim 4, special
Sign is that the gasket serration (3) is 10 ° at angle α with gasket radial direction；The gasket bastard (2) and gasket are radial at angle theta
It is 3 °.
6. a kind of manufacturing method of the anti-loosening exhaust pipe spacer for bolt external member of high temperature resistant according to claim 5, special
Sign is, the gasket bastard (2) setting contrary with the tooth form of gasket serration (3).
7. a kind of manufacturing method of the anti-loosening exhaust pipe spacer for bolt external member of high temperature resistant according to claim 4, special
Sign is that screw thread (402) outer diameter after the threaded shank rolled thread of the bolt body (4) is greater than the neck (401) and through-hole
(5) diameter.
8. a kind of manufacturing method of the anti-loosening exhaust pipe spacer for bolt external member of high temperature resistant according to claim 4, special
Sign is, glue is arranged between the gasket bastard (2) of the gasket (1) and the bolt bastard (403) of bolt body (4) by two
Person's bonding.
9. a kind of exhaust pipe spacer for bolt external member that high temperature resistant is anti-loosening according to claim 4 to 8 any one
Manufacturing method, which is characterized in that the gasket (1) manufacture the step of include:
1) plate under:
A. selecting structural alloy steel is raw material, and the raw material trade mark is 25Cr2MoVA；
B. steel plate is obtained by hot-roll forming to raw material, and is handled by high tempering；Finishing temperature is controlled when hot rolling 900
~1000 DEG C, then it is air-cooled to room temperature；The high tempering, temperature are 620~660 DEG C, 4~5 hours of time, are then cooled to
Room temperature；
C. the steel plate eliminates oxide skin, manufactured gasket plate through twin polishing；
2) gasket blank is made in punch forming:
Using the upper and lower mold with bastard, serration, forming gasket (1) is stamped out on press machine；
3) nitrogen treatment:
By gasket (1) through over cleaning, oil removing, derusting, drying, nitridation heating temperature is 530~550 DEG C, keeps the temperature 4~5 hours, with
20 DEG C/h~35 DEG C/h speed cools to 200 DEG C with the furnace, then comes out of the stove air-cooled.
10. a kind of manufacturing method of the anti-loosening exhaust pipe spacer for bolt external member of high temperature resistant according to claim 9, special
Sign is, when by gasket (1) nitrogen treatment, cools to 200 DEG C with the furnace with 25 DEG C/h speed, then comes out of the stove air-cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910884797.9A CN110529488A (en) | 2019-09-19 | 2019-09-19 | A kind of exhaust pipe spacer for bolt external member and its manufacturing method that high temperature resistant is anti-loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910884797.9A CN110529488A (en) | 2019-09-19 | 2019-09-19 | A kind of exhaust pipe spacer for bolt external member and its manufacturing method that high temperature resistant is anti-loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110529488A true CN110529488A (en) | 2019-12-03 |
Family
ID=68669182
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910884797.9A Pending CN110529488A (en) | 2019-09-19 | 2019-09-19 | A kind of exhaust pipe spacer for bolt external member and its manufacturing method that high temperature resistant is anti-loosening |
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| CN (1) | CN110529488A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763879A (en) * | 2020-06-04 | 2020-10-13 | 宁波浩渤工贸有限公司 | Preparation method of flat washer for high-strength bolt |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559823Y (en) * | 2002-07-31 | 2003-07-09 | 朴明基 | Anti-loosing self-locking washer |
| CN1522310A (en) * | 2001-04-27 | 2004-08-18 | ס�ѽ�����ҵ��ʽ���� | Metal gasket and a material for its manufacture and a method for their manufacture |
| CN201354687Y (en) * | 2008-12-15 | 2009-12-02 | 江门天钇金属工业有限公司 | Cylinder gasket for engine of water cool motorcycle |
| CN201836288U (en) * | 2010-09-25 | 2011-05-18 | 中国航天科工集团第二研究院二一○所 | Combined damping device |
| CN102618701A (en) * | 2012-03-13 | 2012-08-01 | 西宁特殊钢股份有限公司 | Treatment method for replacing quenching and tempering through high-temperature tempering after 2Cr13 steel controlled rolling and cooling |
| CN104533925A (en) * | 2015-01-08 | 2015-04-22 | 森科五金(深圳)有限公司 | Lock washer manufacturing method and lock washer |
| JP2017155325A (en) * | 2016-03-04 | 2017-09-07 | 張家港阿斯恩表面工程科技有限公司 | Method of manufacturing slack-stopping washer for bolt and nut |
| CN108533601A (en) * | 2018-04-20 | 2018-09-14 | 梁智 | A kind of self-locking screw |
| CN109811197A (en) * | 2019-01-09 | 2019-05-28 | 河北五维航电科技股份有限公司 | A kind of preparation method for 700 DEG C of Control Stage of Steam Turbine blade root gasket materials |
| CN109973504A (en) * | 2019-04-15 | 2019-07-05 | 宝石机械成都装备制造分公司 | The anti-pull rod thread gluing combination nut of fracturing pump |
| CN210599806U (en) * | 2019-09-19 | 2020-05-22 | 广西玉柴机器股份有限公司 | High-temperature-resistant anti-loosening exhaust pipe bolt gasket kit |
-
2019
- 2019-09-19 CN CN201910884797.9A patent/CN110529488A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1522310A (en) * | 2001-04-27 | 2004-08-18 | ס�ѽ�����ҵ��ʽ���� | Metal gasket and a material for its manufacture and a method for their manufacture |
| CN2559823Y (en) * | 2002-07-31 | 2003-07-09 | 朴明基 | Anti-loosing self-locking washer |
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