CN208778892U - A kind of zinc/aluminum-plated steel pipe of corrosion resistance - Google Patents
A kind of zinc/aluminum-plated steel pipe of corrosion resistance Download PDFInfo
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- CN208778892U CN208778892U CN201821384169.1U CN201821384169U CN208778892U CN 208778892 U CN208778892 U CN 208778892U CN 201821384169 U CN201821384169 U CN 201821384169U CN 208778892 U CN208778892 U CN 208778892U
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- steel pipe
- zinc
- aluminum
- corrosion resistance
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Abstract
The utility model discloses a kind of zinc/aluminum-plated steel pipes of corrosion resistance, including steel pipe matrix, the outer wall of the steel pipe matrix is disposed with zinc-aluminium-alloy layer, aluminium alloy passivation layer and insulating layer, multiple relief grooves are provided on the insulating layer, the steel pipe matrix is radially provided with tapped through hole, for the tapped through hole for installing pressure monitoring device, the inner wall of the steel pipe matrix is provided with polyethylene plastic-coated powder coating layer.Compared with the prior art, the utility model has the following advantages: having good antiseptic property, it can prevent the outdoor steel pipe fitting fast erosion used, solve the problems, such as that the outdoor steel pipe fitting used uses rear strength of materials missing, mechanical property reduction, corrosion failure for a long time.
Description
Technical field
The utility model relates to steel pipe corrosion-proof technical fields, specifically, being a kind of zinc/aluminum-plated steel with corrosion resistance
Pipe can prevent the outdoor steel pipe fitting fast erosion used, solve the outdoor steel pipe fitting used and use the rear strength of materials for a long time
The problem of missing, mechanical property reduction, corrosion failure.
Background technique
It is well known that chemical action and electrochemical action occur between metal and external environment medium, metal knot can be caused
The destruction of structure forms metal erosion and scraps non-serviceable steel product because of corrosion every year in the world according to statistics, accounts for about generation
The one third of boundary's steel annual output is counted according to anti-corrosion association, China, and there are about more than 500 hundred million yuan of steel products due to corrosion every year
Therefore failure is dedicated to being potentiated and enhanced the antiseptic property research of steel product, have been very urgent, especially for open air
The steel product used, such as steel pipe fitting, with greater need for preservative treatment.
The steel pipe that open air uses use it is more for zinc-plated pipeline, or using the pipeline of brushing paint, but due to open air
Exposing to the weather drenches with rain, and especially pollutes the corrosion of more serious regional acid rain, and pipeline is easy to corrode, to combustion gas and water, petroleum etc.
Conveyer belt carrys out huge security risk, and although brushing paint is able to solve certain Anticorrosion Problems, but since paint needs to determine
Phase brushes maintenance, thus can generate huge maintenance cost.If, first is that cost is excessively high, should not largely be made using stainless steel tube
With especially large-size stainless steel pipe, cost are higher；Second is that difficulty of construction is big for site welding, it is necessary to special stainless steel electrode is used,
Cost is very high；Third is that corrosion resistance is very poor, and the service life is very short in certain occasions (if any occasion existing for chlorine or chloride ion)；
Fourth is that safety is poor, the natural gas tube of a large amount of built on stilts installation, if protection is not added, easily by the attack of thunder and lightning.
Galvanized pipe is to make molten metal and iron-based precursor reactant and generate alloy-layer, so that both matrix and coating be made mutually to tie
It closes.Hot galvanizing is that steel pipe is first carried out pickling, in order to remove the iron oxide of steel tube surface, after pickling, passes through ammonium chloride or chlorination
It is cleaned, is then fed into hot-dip tank in zinc aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution slot.Hot galvanizing has
The advantages that coating is uniform, and adhesive force is strong, long service life.Hot galvanized steel pipe passes through the development of 60~seventies of 20th century, product
Quality is greatly improved, and is continuously cited as within 1981~1989 years metallurgical ministerial superior product and national silver medal award etc., yield
Also increase for years, 1993 annual outputs are more than 40 ten thousand tons, and 1999 annual outputs are more than 60 ten thousand tons, and export Southeast Asia, Africa, beauty
The countries and regions such as state, Japan, Germany.Hot dip galvanizing pipe is multi-purpose to make water-supply-pipe and gas pipe, and regular size is+12.5~+102
mm.After the nineties, more and more tighter to the control of high pollution enterprise due to the attention of Environmental protection, hot dip galvanizing pipe is in life
" three wastes " generated in production are difficult to solve.What old house was largely is all galvanized pipe, that iron of present coal gas, heating
Pipe is also galvanized pipe, and galvanized pipe is as water pipe, after several years, manages the interior a large amount of rust deposites of generation, the yellow water of outflow not only pollutes clean
Tool, and it is mingled with the bacterium that rough inner wall is bred, corrosion causes content of beary metal in water excessively high, seriously endangers the strong of human body
Health.Six the seventies, developed country starts to develop novel tube in the world, and disables galvanized pipe successively.The Ministry of Construction of China etc. four
Ministries and commissions, which also send the documents, defines the disabling galvanized pipe from 2 years, and galvanized pipe has been rarely employed in the cold water pipe of newly-built community at present,
The hot-water line of some cells uses galvanized pipe.
In view of the above-mentioned problems, needing to provide a kind of steel pipe of corrosion resistance, prevents steel pipe fast erosion, intensity is caused to lack
It loses, mechanical property reduction, therefore, it should the new technical solution of one kind be provided and solved the above problems.
Utility model content
It is a kind of high resistance to the technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide
Corrosive zinc/aluminum-plated steel pipe can prevent the outdoor steel pipe fitting fast erosion used, solve with good antiseptic property
The steel pipe fitting that open air uses uses the problem of rear strength of materials missing, mechanical property reduction, corrosion failure for a long time.
To realize above-mentioned purpose of utility model, the utility model adopts the following technical solutions:
A kind of zinc/aluminum-plated steel pipe of corrosion resistance, including steel pipe matrix, the outer wall of the steel pipe matrix are disposed with zinc
Aluminum alloy coating, aluminium alloy passivation layer and insulating layer are provided with multiple relief grooves, steel pipe matrix edge on the insulating layer
Radial direction is provided with tapped through hole, and for installing pressure monitoring device, the inner wall of the steel pipe matrix is set the tapped through hole
It is equipped with polyethylene plastic-coated powder coating layer.
Preferably, the zinc aluminum alloy coating with a thickness of 85 to 120 μm, the aluminium alloy passivation layer with a thickness of 25
To 50 μm, the insulating layer with a thickness of 150-220 μm.
Preferably, the zinc aluminum alloy coating is by the zinc of mass fraction 94.5%, the aluminium and quality of mass fraction 5%
0.5% rare earth element of score is made.
Preferably, forming aluminium alloy layer in the surface of zinc aluminum alloy coating spraying aluminium alloy, and the aluminium is closed
Layer gold Passivation Treatment obtains the aluminium alloy passivation layer.
Preferably, the multiple relief groove of the insulating layer radially or is circumferentially uniformly distributed.
Preferably, the pressure monitoring device is pressure sensor.
Preferably, the polyethylene plastic-coated powder coating layer with a thickness of 35 to 50 μm.
Compared with prior art, the good effect of the utility model is:
The utility model is by providing a kind of zinc/aluminum-plated steel pipe of highly corrosion resistant, with good antiseptic property,
Can prevent the outdoor steel pipe fitting fast erosion used, solve the outdoor steel pipe fitting used use the rear strength of materials to lack for a long time,
The problem of mechanical property reduction, corrosion failure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cut away view at the tapped through hole of the utility model；
Fig. 3 is the structural schematic diagram with radial relief groove of the utility model；
Fig. 4 is the structural schematic diagram with circumferential relief groove of the utility model；
Wherein, 1-steel pipe matrix, 2-zinc aluminum alloy coatings, 3-aluminium alloy passivation layers, 4-insulating layers, 5-polyethylene
Plastic-coated powder coating layer, 6-tapped through holes, 7-radial relief grooves, 8-circumferential relief grooves.
Specific embodiment
The utility model is described further below with reference to Fig. 1-4 and specific embodiment.
Referring to attached drawing 1, a kind of zinc/aluminum-plated steel pipe of corrosion resistance, including steel pipe matrix 1, the outer wall of the steel pipe matrix 1
It is disposed with zinc aluminum alloy coating 2, aluminium alloy passivation layer 3 and insulating layer 4, is provided with multiple decompressions on the insulating layer 4
Slot (has circumferential relief groove 8 referring to having in radial relief groove 7 or attached drawing 4 in attached drawing 3), 1 edge of steel pipe matrix
Radial direction is provided with tapped through hole 6(referring to attached drawing 2), the tapped through hole 6 is for installing pressure monitoring device, the steel pipe
The inner wall of matrix 1 is provided with polyethylene plastic-coated powder coating layer 5.
Preferably, the zinc aluminum alloy coating 2 with a thickness of 85 to 120 μm, the aluminium alloy passivation layer 3 with a thickness of
25 to 50 μm, the insulating layer 4 with a thickness of 150-220 μm.
Preferably, the zinc aluminum alloy coating 2 is by the zinc of mass fraction 94.5%, the aluminium and quality of mass fraction 5%
0.5% rare earth element of score is made.
Preferably, forming aluminium alloy layer in the surface of the zinc aluminum alloy coating 2 spraying aluminium alloy, and the aluminium is closed
Layer gold Passivation Treatment obtains the aluminium alloy passivation layer 3.
Preferably, the multiple relief groove of the insulating layer 4 radially or is circumferentially uniformly distributed.
Preferably, the pressure monitoring device is pressure sensor.
Preferably, the polyethylene plastic-coated powder coating layer 5 with a thickness of 35 to 50 μm.
The utility model provides a kind of zinc/aluminum-plated steel pipe of highly corrosion resistant, with good antiseptic property, can prevent
The only outdoor steel pipe fitting fast erosion used solves the outdoor steel pipe fitting used and uses rear strength of materials missing, mechanics for a long time
The problem of reduced performance, corrosion failure.
The optimal technical scheme of the utility model is only embodied in summary, and those skilled in the art is to some of them portion
Divide some variations that may be made to embody the principles of the present invention, all should be the technology scope of the utility model.
Claims (7)
1. a kind of zinc/aluminum-plated steel pipe of corrosion resistance, which is characterized in that including steel pipe matrix, the outer wall of the steel pipe matrix is successively
It is provided with zinc aluminum alloy coating, aluminium alloy passivation layer and insulating layer, multiple relief grooves, the steel are provided on the insulating layer
Pipe matrix is radially provided with tapped through hole, and the tapped through hole is for installing pressure monitoring device, the steel pipe matrix
Inner wall be provided with polyethylene plastic-coated powder coating layer.
2. the zinc/aluminum-plated steel pipe of corrosion resistance as described in claim 1, which is characterized in that the thickness of the zinc aluminum alloy coating
Be 85 to 120 μm, the aluminium alloy passivation layer with a thickness of 25 to 50 μm, the insulating layer with a thickness of 150-220 μm.
3. the zinc/aluminum-plated steel pipe of corrosion resistance as described in claim 1, which is characterized in that the zinc aluminum alloy coating is by quality
The zinc of score 94.5%, the aluminium of mass fraction 5% and 0.5% rare earth element of mass fraction are made.
4. the zinc/aluminum-plated steel pipe of corrosion resistance as described in claim 1, which is characterized in that in the table of the zinc aluminum alloy coating
Face sprays aluminium alloy and forms aluminium alloy layer, and obtains the aluminium alloy passivation layer to the aluminium alloy layer Passivation Treatment.
5. the zinc/aluminum-plated steel pipe of corrosion resistance as described in claim 1, which is characterized in that the multiple of the insulating layer subtracts
Indent radially or is circumferentially uniformly distributed.
6. the zinc/aluminum-plated steel pipe of corrosion resistance as described in claim 1, which is characterized in that the pressure monitoring device is pressure
Sensor.
7. the zinc/aluminum-plated steel pipe of corrosion resistance as described in claim 1, which is characterized in that the polyethylene plastic-coated powdery paints
Layer with a thickness of 35 to 50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821384169.1U CN208778892U (en) | 2018-08-27 | 2018-08-27 | A kind of zinc/aluminum-plated steel pipe of corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821384169.1U CN208778892U (en) | 2018-08-27 | 2018-08-27 | A kind of zinc/aluminum-plated steel pipe of corrosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778892U true CN208778892U (en) | 2019-04-23 |
Family
ID=66158651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821384169.1U Expired - Fee Related CN208778892U (en) | 2018-08-27 | 2018-08-27 | A kind of zinc/aluminum-plated steel pipe of corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778892U (en) |
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2018
- 2018-08-27 CN CN201821384169.1U patent/CN208778892U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190423 Termination date: 20210827 |