CN209430574U - A kind of high-intensitive galvanized bolt component with erosion resistant coating - Google Patents
A kind of high-intensitive galvanized bolt component with erosion resistant coating Download PDFInfo
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- CN209430574U CN209430574U CN201920039571.4U CN201920039571U CN209430574U CN 209430574 U CN209430574 U CN 209430574U CN 201920039571 U CN201920039571 U CN 201920039571U CN 209430574 U CN209430574 U CN 209430574U
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- bolt
- shield
- steel plate
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- hot
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Abstract
The utility model discloses a kind of high-intensitive galvanized bolt component with erosion resistant coating, the bolt head edge being connected with bolt body portion is provided with bolt indentation portion, the outer surface of bolt is coated with one layer of corrosion resistant Hot-dip Galvanizing Coating, Hot-dip Galvanizing Coating is made of the ternary alloy three-partalloy that tri- kinds of metallic elements of Zn-Ni-Bi form, and it is provided with bolt shield, shield bending part presentation on bolt shield extends radially inwardly, and forms the package to bolt end face, bolt shield can protect bolt assembly.Compared with the prior art, the utility model has the following advantages: the Hot-dip Galvanizing Coating of bolt surface setting has excellent corrosion resistance, improve its service life outdoors, it is particularly suitable for the fastening of each component on electric power pylon, and since the head of bolt and the junction of threaded shank are provided with a concave part, the stress concentration phenomenon of external pull here is eliminated, the intensity of bolt is improved while reducing the dosage of bolt material.
Description
Technical field
The utility model relates to bolt reinforcement technique fields, specifically, being that a kind of high intensity with erosion resistant coating is zinc-plated
Bolt assembly, Hot-dip Galvanizing Coating are made of the ternary alloy three-partalloy that tri- kinds of metallic elements of Zn- Ni-Bi form, the hot dipping of bolt surface setting
Zinc layers have excellent corrosion resistance, improve its service life outdoors, are particularly suitable for each component on electric power pylon
Fastening eliminates external pull here and since the head of bolt and the junction of threaded shank are provided with a concave part
Stress concentration phenomenon improves the intensity of bolt while reducing the dosage of bolt material.
Background technique
Galvanizing and galvanizing by dipping are also named in hot galvanizing；It is a kind of effective anti-corrosion of metal mode, is mainly used for every profession and trade
On metal structure facility.It is so that steel member surface is adhered to zinc in the zinc liquid of steel part 445 DEG C or so the thawings of immersion after derusting
Layer, to play corrosion-resistant purpose.Hot galvanizing is developed by more ancient hot-dipping method, since France in 1836 is heat
It is zinc-plated be applied to industry since, had in 1 hundred 40 history.
Galvanizing is called galvanizing by dipping, as a kind of effective anti-corrosion of metal mode, has been widely used for the gold of every profession and trade
Belong on structural facilities.Up to now, hot galvanizing is still in steel anti-corrosion method using most common, most effective technological measure.
In building industry, for the lightgage steel joist of all types of industries and civil buildings, building storey panel, corrugated sheet, rolling screen door etc..It is in
In terms of electricity and light industry, shell and bottom plate for all kinds of household electrical appliance.In the automotive industry, for car body, shell,
Inner panel, bottom plate etc..Greatly develop electric power, traffic, communication, the energy and urban infrastructure in China.With with building, household electrical appliances, vapour
The powerful development of turner industry, the zinc-plated industry in China face unprecedented opportunities and huge market.Galvanizing is after derusting
Steel member immerse 600 DEG C or so high temperature melts zinc liquid in, make steel member surface adhere to zinc layers, to play etch-proof mesh
's.Galvanizing steel plate is a variety of a little thus big due to having long durable years, production industrialization degree height, quality stabilization etc.
Amount is for by the more serious and not easy to repair outdoor steel structure of atmospheric corrosion, such as a large amount of power transmission towers, communications tower.But existing skill
It is improper due to production technology method under art, the galvanizing steel plate of production will appear hardness is lower, surface local area is gloomy,
Surface zinc granule is more or has dew iron phenomenon, and yield rate is not high, increases economic cost, reduces productive profit.
Up to now, hot galvanizing is still in steel anti-corrosion method using most common, most effective technological measure.Tradition leaching
Zinc zinc layers became uneven is even, influences the cooperation of screw element, and energy consumption is high, working environment is poor.With China's electric power, the big hair of traffic
Exhibition, will promote the development of fastener galvanizing；So development of new galvanizing by dipping material, improves fastener galvanizing by dipping work
Skill, it is highly important for improving fastener galvanizing by dipping quality of coating.However, bolt galvanized part in the prior art, although adopting
Preservative treatment is carried out to bolt surface with zinc coat, but there are processing temperature height, hot dipping times in bolt hot galvanizing process
The long problem for causing bolt mechanics reduced performance obvious, it would be highly desirable to solve the above problems.
Simultaneously as steel tower bolt arrangement is usually longer, it is easy to be damaged by external force in use, causes to connect
Failure, while when being acted on by radial force, it is easy to produce fracture under shearing force, it would be highly desirable to solve the above problems.
Moreover, because steel tower bolt uses exposing to the weather outdoors throughout the year, be easy to cause the fixed bolt nut and
The threaded portion of bolt is damaged by corrosion, and the effect of fixation steel plate is lost so as to cause bolt part, leads to the mistake of bolt fixing method
Effect, easily causes the damage of steel tower part, it would be highly desirable to solve the above problems.
For the above problem present in steel tower bolt in the prior art, the purpose of this utility model is to provide one kind
Structure is simple, easy to use, corrosion resistance is high, and structural strength is high and fixes a kind of reliable high-intensitive plating with erosion resistant coating
Zinc bolt assembly, to overcome drawbacks described above.
Utility model content
The technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide a kind of structure
Simply, easy to use, corrosion resistance is high, structural strength is high and a kind of fixed reliable zinc-plated spiral shell of high intensity with erosion resistant coating
Bolt assembly, to improve the service life and safety of steel tower bolt.
To realize above-mentioned purpose of utility model, the utility model adopts the following technical solutions:
A kind of high-intensitive galvanized bolt component with erosion resistant coating, is used to be fixedly connected with upper steel plate and lower steel plate；It is described
It is respectively arranged with bolt mounting holes on upper steel plate and the lower steel plate, is provided with one on the bolt mounting holes of the upper steel plate
Groove is provided with gasket in the groove, and bolt is also cross on the bolt mounting holes and the lower steel plate on the upper steel plate
Bolt mounting holes, and the bolt is tightened by hold-doun nut, the hold-doun nut and the gasket are in close contact, and are also wrapped
Bolt shield has been included, the bolt shield includes shield inner fovea part, protection cover main body, shield First Transition portion,
The second transition part of shield, shield bending part are provided with an annular groove, institute on the bolt mounting holes of the upper steel plate
It states shield inner fovea part to be fixedly installed in the annular groove, the shield bending part presentation extends radially inwardly, and is formed
To the package of the bolt end face, the protection to the bolt is formed, the bolt has bolt head, bolt indentation portion, spiral shell
Bolt main part, bolt thread portion, wherein the bolt head edge being connected with the bolt body portion is provided with the bolt
Concave part, the outer surface of the bolt are coated with one layer of corrosion resistant Hot-dip Galvanizing Coating；The Hot-dip Galvanizing Coating is by tri- kinds of Zn- Ni-Bi
The ternary alloy three-partalloy composition of metallic element composition.
It is preferred that the average thickness of the Hot-dip Galvanizing Coating is 50-60 μm.
It is preferred that the average thickness of the Hot-dip Galvanizing Coating is 55 μm.
It is preferred that the local thickness of the Hot-dip Galvanizing Coating is not less than 45 μm.
It is preferred that the size of the bolt is diameter 12mm, length 120mm.
It is preferred that the outer diameter of the hold-doun nut is greater than the internal diameter of the bolt shield.
Compared with prior art, the good effect of the utility model is: Hot-dip Galvanizing Coating is by tri- kinds of metallic elements of Zn- Ni-Bi
The ternary alloy three-partalloy of composition forms, the Hot-dip Galvanizing Coating of bolt surface setting has excellent corrosion resistance, improves it outdoors
Service life is particularly suitable for the fastening of each component on electric power pylon, and due to the junction on the head of bolt and threaded shank
It is provided with a concave part, eliminates the stress concentration phenomenon of external pull here, the intensity of bolt is improved while reducing
The dosage of bolt material；And it is provided with bolt shield, the shield bending part presentation on bolt shield extends radially inwardly,
The package to bolt end face is formed, bolt shield can protect bolt assembly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram when bolt shield in the utility model is unassembled.
Fig. 2 is the structural schematic diagram when bolt shield assembly in the utility model is completed.
Fig. 3 is the structure chart of the high-intensitive galvanized bolt with erosion resistant coating in the utility model.
The label in accompanying drawing is: 1- hold-doun nut, 2- has the high-intensitive galvanized bolt of erosion resistant coating, 3- gasket, 4- bolt
Shield, 5- upper steel plate, 6- lower steel plate, 21- bolt head, 22- bolt indentation portion, 23- bolt body portion, 24- bolt thread
Portion, 41- shield inner fovea part, 42- protect cover main body, 43- shield First Transition portion, the second transition part of 44- shield, 45-
Shield bending part.
Specific embodiment
The utility model is described further below with reference to Fig. 1-3 and specific embodiment.
Referring to attached drawing 1-3, it discloses a kind of high-intensitive galvanized bolt component with erosion resistant coating is used to be fixedly connected
Upper steel plate 5 and lower steel plate 6；Bolt mounting holes are respectively arranged on the upper steel plate 5 and the lower steel plate 6, the upper steel plate 5
It is provided with a groove on the bolt mounting holes, gasket 3 is provided in the groove, bolt 2 is also cross on the upper steel plate 5
Bolt mounting holes and the lower steel plate 6 on bolt mounting holes, and the bolt 2 is tightened by hold-doun nut 1, it is described solid
Determine nut 1 and the gasket 3 is in close contact, further include having bolt shield 4, the bolt shield 4 includes in shield
Recess portion 41, protection cover main body 42, shield First Transition portion 43, the second transition part of shield 44, shield bending part 45 are described
An annular groove is provided on the bolt mounting holes of upper steel plate 5, the shield inner fovea part 41 is fixedly installed on the ring
In connected in star, the presentation of shield bending part 45 is extended radially inwardly, and forms the package to 2 end face of bolt, formation pair
The protection of the bolt 2, the bolt 2 have bolt head 21, bolt indentation portion 22, bolt body portion 23, bolt thread portion
24, wherein 21 edge of the bolt head being connected with the bolt body portion 23 is provided with the bolt indentation portion 22, it is described
The outer surface of bolt 2 is coated with one layer of corrosion resistant Hot-dip Galvanizing Coating；The Hot-dip Galvanizing Coating is by tri- kinds of metallic element groups of Zn-Ni-Bi
At ternary alloy three-partalloy composition；The average thickness of the Hot-dip Galvanizing Coating is 50-60 μm；It is preferred that the average thickness of the Hot-dip Galvanizing Coating
Degree is 55 μm；It is preferred that the local thickness of the Hot-dip Galvanizing Coating is not less than 45 μm；The size of the bolt 2 is diameter 12mm, length
120mm；The outer diameter of the hold-doun nut 1 is greater than the internal diameter of the bolt shield 4.
A certain proportion of Ni and Bi element is added in zinc bath, addition bismuth bathes mobility to improve zinc in zinc bath, reduces zinc
The surface tension of liquid, the liquid Zn on surface preferably flows back in lifting process after so that plating piece is soaked zinc.In addition, bismuth-containing in zinc liquid
It shields to pot body, extends the service life of zinc pot.Meanwhile bismuth is to coating structure, adhesion, passivation and resistance to white rust and painting
Dress property has no adverse effect.In zinc bath nickel can effective inhibitory activity steel Fe-Zn reaction.
The dip galvanized is made of the ternary alloy three-partalloy that tri- kinds of metallic elements of Zn-Ni-Bi form, wherein Ni content
Less than 0.8%, Bi content less than 0.5%, remaining as Zn.
It is preferred that Ni, Bi are added to kirsite in the form of intermediate alloy, it is wherein 0.5- including Ni in intermediate alloy
0.8%, Bi 0.3-0.5%, remaining as Zn.
It is preferred that fluxing agent is added during plating, fluxing agent is to use to add 40-50ml/L, JLG- in galvanizing flux
1#Help plating additive.
Product main technical performance index (XN): 1. appearances: smooth, no drop tumor, coarse and zinc thorn, no peeling, no plating leakage,
The solvent slag of noresidue；2. the minimum value of coating local thickness: 45 μm；3. coating average thickness: 50-60 μm；4. coating is uniform
Property: do not reveal iron through copper-bath etch four times；5. adherence of coating: hitting 5 coating surfaces through drop weight test mustn't protrusion
Removing；6. corrosion resistance: 48 hours without red rust.
Fig. 1 is the structural schematic diagram when bolt shield in the utility model is unassembled, wherein the bolt protection
The shield bending part 45 of cover 4 is not formed, whole that sleeve-shaped is presented, in assembling process, first by the upper steel plate 5 and it is described under
Steel plate 6 is stacked together, and bolt of the bolt 2 on the bolt mounting holes and the lower steel plate 6 on the upper steel plate 5 is pacified
Hole is filled, and gasket 3 and bolt shield 4 are mounted in the groove of the upper steel plate 5, then, tightens the hold-doun nut
1, it is in close contact the hold-doun nut 1 with the gasket 3, obtains assembling structure schematic diagram as described in Figure 1；And Fig. 2 is this
Bolt shield in utility model assembles structural schematic diagram when completing, and is by preventing the bolt in Fig. 1 structure
The shield transition part of shield 4 is bent to inner radial, forms shield bending part 45 described in Fig. 2, and the shield is curved
Folding part 45 presents and extends radially inwardly, and forms the package to the end face of the bolt 2, the shield bending part 45 can be to spiral shell
Bolt assembly is protected.
Compared with prior art, the good effect of the utility model is: Hot-dip Galvanizing Coating is by tri- kinds of metallic elements of Zn- Ni-Bi
The ternary alloy three-partalloy of composition forms, the Hot-dip Galvanizing Coating of bolt surface setting has excellent corrosion resistance, improves it outdoors
Service life is particularly suitable for the fastening of each component on electric power pylon, and due to the junction on the head of bolt and threaded shank
It is provided with a concave part, eliminates the stress concentration phenomenon of external pull here, the intensity of bolt is improved while reducing
The dosage of bolt material；And it is provided with bolt shield, the shield bending part presentation on bolt shield extends radially inwardly,
The package to bolt end face is formed, bolt shield can protect bolt assembly.
Those skilled in the art embodies the utility model to some variations that some of them part may be made
Principle, all should be the technology scope of the utility model.
Claims (6)
1. a kind of high-intensitive galvanized bolt component with erosion resistant coating, is used to be fixedly connected upper steel plate (5) and lower steel plate (6)；
Bolt mounting holes, the bolt peace of the upper steel plate (5) are respectively arranged on the upper steel plate (5) and the lower steel plate (6)
Dress is provided with a groove on hole, is provided in the groove gasket (3), bolt (2) is also cross the spiral shell on the upper steel plate (5)
Bolt mounting holes on bolt mounting hole and the lower steel plate (6), and tightened the bolt (2) by hold-doun nut (1), it is described
Hold-doun nut (1) and the gasket (3) are in close contact, and further include having bolt shield (4), the bolt shield (4) packet
It includes shield inner fovea part (41), protects cover main body (42), shield First Transition portion (43), the second transition part of shield (44),
Shield bending part (45), is provided with an annular groove on the bolt mounting holes of the upper steel plate (5), in the shield
Recess portion (41) is fixedly installed in the annular groove, and the shield bending part (45) presents and extends radially inwardly, formation pair
The package of bolt (2) end face forms the protection to the bolt (2), which is characterized in that the bolt (2) has bolt
Head (21), bolt indentation portion (22), bolt body portion (23), bolt thread portion (24), wherein with the bolt body portion
(23) the connected bolt head (21) edge is provided with the bolt indentation portion (22), the outer surface plating of the bolt (2)
There is one layer of corrosion resistant Hot-dip Galvanizing Coating；The ternary alloy three-partalloy group that the Hot-dip Galvanizing Coating is made of tri- kinds of metallic elements of Zn- Ni-Bi
At.
2. a kind of high-intensitive galvanized bolt component with erosion resistant coating as described in claim 1, which is characterized in that the hot dipping
The average thickness of zinc layers is 50-60 μm.
3. a kind of high-intensitive galvanized bolt component with erosion resistant coating as claimed in claim 2, which is characterized in that the hot dipping
The average thickness of zinc layers is 55 μm.
4. a kind of high-intensitive galvanized bolt component with erosion resistant coating as claimed in claim 3, which is characterized in that the hot dipping
The local thickness of zinc layers is not less than 45 μm.
5. a kind of high-intensitive galvanized bolt component with erosion resistant coating as described in claim 1, which is characterized in that the bolt
(2) size is diameter 12mm, length 120mm.
6. a kind of high-intensitive galvanized bolt component with erosion resistant coating as described in claim 1, which is characterized in that the fixation
The outer diameter of nut (1) is greater than the internal diameter of the bolt shield (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039571.4U CN209430574U (en) | 2019-01-10 | 2019-01-10 | A kind of high-intensitive galvanized bolt component with erosion resistant coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039571.4U CN209430574U (en) | 2019-01-10 | 2019-01-10 | A kind of high-intensitive galvanized bolt component with erosion resistant coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430574U true CN209430574U (en) | 2019-09-24 |
Family
ID=67975896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920039571.4U Expired - Fee Related CN209430574U (en) | 2019-01-10 | 2019-01-10 | A kind of high-intensitive galvanized bolt component with erosion resistant coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430574U (en) |
-
2019
- 2019-01-10 CN CN201920039571.4U patent/CN209430574U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 Termination date: 20220110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |