CN202451563U - High-strength bolt connecting pair for environment-friendly chromium-free dacromet wind power - Google Patents
High-strength bolt connecting pair for environment-friendly chromium-free dacromet wind power Download PDFInfo
- Publication number
- CN202451563U CN202451563U CN2012200090540U CN201220009054U CN202451563U CN 202451563 U CN202451563 U CN 202451563U CN 2012200090540 U CN2012200090540 U CN 2012200090540U CN 201220009054 U CN201220009054 U CN 201220009054U CN 202451563 U CN202451563 U CN 202451563U
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- China
- Prior art keywords
- chromium
- strength bolt
- bolt
- nut
- connecting pair
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- 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.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a high-strength bolt connecting pair for environment-friendly chromium-free dacromet wind power. The high-strength bolt connecting pair comprises a bolt and a nut which are placed between two connected pieces, wherein a washer is placed between the bolt and the nut and between the bolt and the connected pieces respectively; and a chromium-free dacromet coating is coated on the surfaces of the bolt, the nut and the two washers. The high-strength bolt connecting pair has the beneficial effects of no toxicity, environmental friendliness, capabilities of meeting the environmental protection requirement of each country, passing the environmental protection detection of SGS, industrially producing the large-specification chromium-free dacromet high-strength bolt connecting pair for wind power and providing a stable construction torque coefficient, generally 0.085 to 0.12, after the product is lubricated by a lubricant, safe and guaranteed construction, higher anti-corrosion capacity and capability of generally resisting neutral salt spray test for over 720 hours, even reaching up to over 1,000 hours.
Description
Technical field
The utility model relates to a kind of high-strength bolt auxiliary connection, relates in particular to the surface structure of this high-strength bolt auxiliary connection.
Background technique
Flourish along with domestic wind-powered electricity generation industry, increasing wind-powered electricity generation enterprise has aimed at market abroad one after another.But European and American countries will be far above domestic to the environmental requirement of device therefor.
With regard to by the high-strength bolt auxiliary connection, the high-strength bolt auxiliary connection that uses on nearly all state inner blower, its surface treatment all adopts Dacroment to handle.Though this surface treatment antiseptic power is extremely strong, its contained Cr VI all bans use of in a lot of countries and regions.If expand this sheet market; A kind of new surface treatment of the necessary employing of making use of momentum; It should have fabulous anti-corrosion capability, can not contain the chemical composition on the RoHS forbidding clauses and subclauses simultaneously again, makes and adopts this surface-treated high-strength bolt auxiliary connection to become real environmentally friendly machine.
Wind-powered electricity generation generally refers to 8.8 grades of mechanical property grades that fan parts such as being used for tower tube, complete machine connects and above by a hex head bolt, a nut and two fastening piece auxiliary connections that packing ring is formed with the high-strength bolt auxiliary connection, and the specification of this product is usually all at M36～M64.At present, domestic still do not have good not only environmental protection but also corrosion resistant wind-powered electricity generation is used the high-intensity fasteners auxiliary connection.A lot of high-strength bolt auxiliary connections that adopt external environment friendly anti-corrosive paint; Such as galvanizing high-strength bolt auxiliary connection; Though its cover coat is that environmental protection and antiseptic property are fabulous, itself coating thickness is difficult to control, causes fastener surface of poor quality and torque coefficient is unstable; Be unfavorable for construction, have the unsafe hidden danger of mounted configuration.And,, in the time of on the high-strength bolt product that applies to big weight, big specification, be difficult to guarantee its antiseptic property because of U.S. special coating itself is relatively more fragile for a long time such as U.S. Extra High Strength bolt auxiliary connection of a specified duration.
Summary of the invention
The utility model relates to a kind of environment-friendly chromium-free Dacroment wind-powered electricity generation and uses the high-strength bolt auxiliary connection, is intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme:
The utility model comprises: be placed in two bolt and nuts between the connected piece; Between described screw bolt and nut and bolt and connected piece, respectively settle a packing ring; Surface-coated one deck chromium-free Dyclo paint of said bolt, nut and two packing rings.
Compared with prior art, the beneficial effect of the utility model is: asepsis environment-protecting, meet the environmental requirement of various countries, and can be through the environmental protecting inspection of SGS; But the wind-powered electricity generation of the big specification of industrialized production is with chromium-free Dyclo high-strength bolt auxiliary connection; This product can provide stable construction torque coefficient after lubricating through oiling agent, and generally between 0.085～0.12, construction safety is secure; Have antiseptic power preferably simultaneously, all can stand neutral salt spray test usually more than 720 hours, even can reach more than 1000 hours.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Visible by Fig. 1: the utility model comprises: be placed in bolt 1 and a nut 3 between two connected pieces (4,5); Between described bolt 1 and nut 3 and bolt 1 and connected piece 4, respectively settle a packing ring (2,6); Surface-coated one deck chromium-free Dyclo paint of said bolt 1, nut 3 and two packing rings (2,6).
Described coating thickness is between 10～15 μ m.
Coating is the BNC70-2 type chromium-free Dyclo paint of Beijing Yongtaihe Metal Anticorrosion Technology Co., Ltd..
The utility model product meets export requirement, and its salt fog and moment of torsion can both meet all requirement of products of client simultaneously.Future, along with the increase of the supporting export volume of wind-powered electricity generation and domestic environmental protection more and more to be paid attention to, environment-friendly chromium-free Dacroment wind-powered electricity generation must be the direction of high-intensity fasteners development with the high-strength bolt auxiliary connection.
The technological method of the utility model is:
After accomplishing the threaded fastener production procedure, all carry out the chromium-free Dyclo surface treatment in high-strength bolt, nut and washer face.
Chromium-free Dyclo high-strength bolt: get the raw materials ready → moulding → heat treatment → rolled thread → the chromium-free Dyclo surface treatment
Selflubricating hexagon nut: get the raw materials ready → moulding → heat treatment → tapping → the chromium-free Dyclo surface treatment
Selflubricating packing ring: get the raw materials ready → moulding → heat treatment → the chromium-free Dyclo surface treatment
The above-mentioned chromium-free Dyclo surface treatment paint trade mark is: BNC70-2 type chromium-free Dyclo paint, buying is from Beijing Yongtaihe Metal Anticorrosion Technology Co., Ltd..
---impeller blasting---application---baking---sealing that chromium-free Dyclo main technique route is: deoil.Aspect deoiling, because its quality influence coating's adhesion requires part surface not have oil fully, do the drippage test with water droplet, water droplet should scatter at once.Aspect ball blast, do not allow part that the throwing of leakage and floating ash are arranged, throw if any leaking, then must do over again, will float ash if any floating grey applying high voltage spray gun and blow away, to note the shot quality simultaneously, warp new shot commonly used replaces old shot.Aspect application, adopted chromium-free Dyclo paint, adopt centrifugal tooling device and baking mesh-belt furnace production line, the bigger workpiece of weight ratio that makes coated baking has the coated surfaces and the coating amount of uniformity.The sealing aspect has adopted the inorganic silicate sealing compound, adopts centrifugal frock; Guarantee the workpiece after centrifugal; Can not collide with the chromium-free Dyclo coating of preceding one procedure, simultaneously seal the pore of chromium-free Dyclo coating again, make the antiseptic power of workpiece meet the requirement of salt spray test fully.
All the other technical orders of the utility model:
1. coated weight: coated weight will guarantee that coating has the enough salt spray test time;
2. coating thickness: 10～15 μ m;
3. adhesion:, meet GB/T 5270 greater than 5 grades
4. outward appearance: under natural light, detecting by an unaided eye presents inferior light silver grey, and the more common Dacroment of color and luster is dark partially, coating should be continuously, evenly, no holiday, bubble, peel off, defectives such as crackle, pit, slag inclusion.
5. mechanical property: meet the desired mechanical property of Related product.
Claims (2)
1. an environment-friendly chromium-free Dacroment wind-powered electricity generation is used the high-strength bolt auxiliary connection, comprising: be placed in two bolt and nuts between the connected piece; Between described screw bolt and nut and bolt and connected piece, respectively settle a packing ring; It is characterized in that: surface-coated one deck chromium-free Dyclo paint of said bolt, nut and two packing rings.
2. environment-friendly chromium-free Dacroment wind-powered electricity generation according to claim 1 is used the high-strength bolt auxiliary connection, it is characterized in that: described coating thickness is between 10～15 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200090540U CN202451563U (en) | 2012-01-10 | 2012-01-10 | High-strength bolt connecting pair for environment-friendly chromium-free dacromet wind power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200090540U CN202451563U (en) | 2012-01-10 | 2012-01-10 | High-strength bolt connecting pair for environment-friendly chromium-free dacromet wind power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451563U true CN202451563U (en) | 2012-09-26 |
Family
ID=46867429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200090540U Expired - Lifetime CN202451563U (en) | 2012-01-10 | 2012-01-10 | High-strength bolt connecting pair for environment-friendly chromium-free dacromet wind power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451563U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887110A (en) * | 2016-06-03 | 2016-08-24 | 芜湖众源复合新材料有限公司 | Multi-layer compounding anticorrosive treatment process for batches of bolts |
| CN106077124A (en) * | 2016-06-08 | 2016-11-09 | 芜湖众源复合新材料有限公司 | A kind of bridge construction is by corrosion-resistant screw rod processing technique |
| CN109486410A (en) * | 2017-09-11 | 2019-03-19 | 现代自动车株式会社 | Coating composition and the washer for vehicle drive shaft being produced from it |
-
2012
- 2012-01-10 CN CN2012200090540U patent/CN202451563U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887110A (en) * | 2016-06-03 | 2016-08-24 | 芜湖众源复合新材料有限公司 | Multi-layer compounding anticorrosive treatment process for batches of bolts |
| CN105887110B (en) * | 2016-06-03 | 2018-05-01 | 芜湖众源复合新材料有限公司 | A kind of batch bolt MULTILAYER COMPOSITE corrosion protection treatment process |
| CN106077124A (en) * | 2016-06-08 | 2016-11-09 | 芜湖众源复合新材料有限公司 | A kind of bridge construction is by corrosion-resistant screw rod processing technique |
| CN106077124B (en) * | 2016-06-08 | 2017-11-07 | 芜湖众源复合新材料有限公司 | A kind of bridge construction is with corrosion-resistant screw rod processing technology |
| CN109486410A (en) * | 2017-09-11 | 2019-03-19 | 现代自动车株式会社 | Coating composition and the washer for vehicle drive shaft being produced from it |
| CN109486410B (en) * | 2017-09-11 | 2022-03-15 | 现代自动车株式会社 | Coating composition and gasket for vehicle drive shaft manufactured therefrom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |