CN101928907A - Anticorrosion method for inner framework of bus shelter ceiling - Google Patents
Anticorrosion method for inner framework of bus shelter ceiling Download PDFInfo
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- CN101928907A CN101928907A CN2010102621677A CN201010262167A CN101928907A CN 101928907 A CN101928907 A CN 101928907A CN 2010102621677 A CN2010102621677 A CN 2010102621677A CN 201010262167 A CN201010262167 A CN 201010262167A CN 101928907 A CN101928907 A CN 101928907A
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- bus shelter
- inner framework
- shelter ceiling
- ceiling
- spraying
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Abstract
The invention relates to an anticorrosion method for an inner framework of a bus shelter ceiling. The method comprises the following steps of: welding the inner framework of the bus shelter ceiling, and removing scales at welded junctions; performing sand blasting treatment, namely blasting quartz sand to the surface of the inner framework of the bus shelter ceiling through a nozzle of a sand blaster by using compressed air of 0.5 to 0.6MPa to remove the scales and rust; and spraying uniformly distributed particles fluidized from a molten zinc wire through the compressed air to the surface of the inner framework of the bus shelter ceiling by using an electric arc sprayer. The method can prolong the service life of a bus shelter.
Description
Technical field
The present invention relates to a kind of anti-corrosion method, particularly a kind of anticorrosion method for inner framework of bus shelter ceiling.
Background technology
For many years, the technical problem of a specified duration and unsettled of waiting booth production is the anticorrosion problem of inner framework of bus shelter ceiling, because this problem fails to solve always, cause bus shelter ceiling to use out of doors that inner structure begins corrosion after 2 years, make ceiling physical strength after 4～5 years reduce greatly until collapsing, even produce safety problem.At the inner frame anticorrosion process of waiting booth before this generally be: brush is anti-to be embroidered lacquer, use hot dip galvanizing pipe or uses the cold galvanizing pipe.The anti-anticorrosion time limit of embroidering lacquer and use cold galvanizing plumber skill of brush is 2 years; Though use the hot dip galvanizing pipe anticorrosion time limit of technology can reach 8-10, but weld bond can't carry out rotproofing, time limit of service can't guarantee equally.
Summary of the invention
The technical problem that will solve of the present invention provides a kind of anticorrosion method for inner framework of bus shelter ceiling that can prolong the waiting booth time limit of service.
The technical solution used in the present invention is: at first with the inner framework of bus shelter ceiling welding forming, remove the oxide skin at weld bond place; Carry out sandblasting then: with the pressurized air of 0.5～0.6MPa, the processing of scale removal, rusty stain is carried out on the surface that the nozzle of quartz sand by sandblast machine is sprayed onto the waiting booth inner frame; Use arc-spraying machine then, the compressed air-flow of zinc silk that melts is turned to the particle spraying that is evenly distributed arrive described waiting booth inner frame surface.
Sandblasting is that employing pressurized air is that power forms the high-velocity jet bundle, material spray high speeds such as (quartz sands) is ejected into need handles workpiece (waiting booth inner frame) surface, the appearance of workpiece outside surface is changed, because abrasive material is to the impact and the shear action of workpiece surface, make workpiece surface obtain certain degree of cleaning and different roughness, the mechanical property of workpiece surface is improved, improved the fatigue resistance of workpiece, increased the sticking power between it and the coating, prolong the weather resistance of filming, also helped the levelling and the decoration of coating.The hot-spraying techniques that the present invention adopts, be to adopt certain high temperature heat source, coated material (zinc) fusing that desire is applied or softening at least, and make it to be atomized into fine droplets or high-temperature particle with gas, high-velocity jet is to the technology that forms coating through pretreated matrix surface.
The principle of arc-spraying machine electric arc spraying:
The wire of two velamens spraying is done from the consumption electrode, and burning is melted with the silk material that the electric arc of silk material end will evenly be sent to, and the silk material atomizing that compressed air-flow will melt is the minimum particle that is evenly distributed of granularity, sprays to workpiece and forms coating.During spraying, intersect the two rhizoid materials that certain angle (being generally 30 degree～60 degree) is sent to continuously, connect the positive and negative electrode of power supply respectively.The contact starting the arc of silk material end, under the effect of power supply, electric arc keeps stable burning, in the behind of electric arc origination point, makes the silk material atomizing of thawing be particle through the high speed compressed air stream, is ejected into through pretreated substrate surface and forms coating.
The invention has the beneficial effects as follows: the present invention handles inner frame surface (as rust cleaning, scrubbing, surface roughening) with sandblasting after adopting waiting booth inner frame welding forming, handles with spray zinc then, and the present invention can make the waiting booth inner frame use out of doors about 30 years.
The present invention compares with the hot dip galvanizing process that prior art is used aspect spraying, has feature as shown in table 1:
Table 1 hot dip galvanizing process and hot spray painted zinc technology characteristics of the present invention are relatively
Pot galvanize and hot spray painted zinc process distinction of the present invention
1, pickling, phosphating process are adopted in the hot dip galvanizing process pre-treatment, and workpiece surface has the resistates of acid, alkali lye, has stayed corrosive hidden danger, hot galvanized layer is easy to generate comes off; Blasting craft is adopted in spray zinc, aluminum spraying technique pre-treatment, so that workpiece surface cleans very much is coarse, the surface is sprayed zinc, can not produced corrosion from inside to outside after aluminium-plated, thereby can not produce the corrosion obscission.
2, hot dip galvanizing process has certain temperature, and about about 440 ℃, so can produce distortion after the workpiece hot dip; And the temperature the during spraying of spray zinc, aluminum spraying technique is very low, workpiece surface temperature＜80 ℃, so workpiece can not be out of shape.
3, adopt hot dip galvanizing process, workpiece is subjected to the restriction of coating bath length; Then workpiece is without limits to adopt the spray zinc technology.
4, adopt hot dip galvanizing process, also have the field patch problem, the damage during on-the-spot the installation in weld seam, loading and unloading, the transportation, repairing can only be adopted paint; As adopt the spray zinc technology then can repair at the scene.
5, because pickling, phosphatization are adopted in the pre-treatment of hot dip galvanizing process, so workpiece surface does not have roughness, coating bonding force relatively poor; And sandblast is adopted in the pre-treatment of spray zinc technology, and workpiece surface has roughness, coating good bonding strength, tensile strength 〉=0.6kgf/mm
2
6, hot dip galvanizing process is very serious to water pollution, and environmental issue is very outstanding, and hot spray painted zinc technology does not have this harm.
Embodiment
A kind of anticorrosion method for inner framework of bus shelter ceiling, it is made up of following steps, at first with the inner framework of bus shelter ceiling welding forming, removes the oxide skin at weld bond place.Carry out sandblasting then: with the pressurized air of 0.5～0.6MPa, the processing of scale removal, rusty stain is carried out on the surface that the nozzle of quartz sand by sandblast machine is sprayed onto the waiting booth inner frame; Use arc-spraying machine then, the compressed air-flow of zinc silk that melts is turned to granularity particle spraying minimum, that be evenly distributed arrive described waiting booth inner frame surface.
Below each step is specified,
One, inner framework of bus shelter ceiling welding forming is removed the oxide skin at weld bond place;
Two, use sandblast machine to eliminate rust, remove oil stain etc.:
1, opens sandblast machine gas control switch, connect the source of the gas and an amount of abrasive material of packing into;
2, close vent valve, open intake valve, the cone seal valve is sealed opening for feed automatically, and the sandblast machine internal pressure raises;
3, open the sandblast machine trip switch, the charge flow rate control valve is opened, and abrasive material extrudes in bucket, sandblast operation beginning;
4, adjust the flow of air intake control valve door, the flow of abrasive material is unsuitable excessive, observes under Mingguang City, contains airflow and the pure airflow and the it makes no odds of abrasive material;
5, in the sandblast course of processing, to keep spray gun and inner framework of bus shelter ceiling that suitable jet length and angle are arranged on the one hand, to make spray gun and inner framework of bus shelter ceiling do to move mutually on the other hand, make the inner framework of bus shelter ceiling surface be subjected to the injection processing of abrasive material equably, derust up to removing, oil stain;
Three, use arc-spraying machine spray zinc:
1, starts air compressor, make air pressure more than 0.6Mpa;
2, the general supply of closing is opened the wire feed power supply, sets the voltage (wire feed rate of spray gun and be directly proportional with spray gun voltage) of spray gun;
3, the voltage of wire feeding machine is set, and is good at 10～15V generally, elects 12V here as;
4, wear silk, two zinc silks are passed protection flexible pipe, rear tube, dummy pipe respectively until passing the air cap mouth, adjust wire feed rate;
5, select operating voltage, " control/operating mode far away/machine control " knob is spun on " machine control " position, " spray voltage adjusting " switch is spun on open position, adjusts " coarse adjustment " " fine tuning " switch, is set at required operating voltage;
6, spraying, " air switch " air of opening earlier on the spray gun blows out, and " electric switch " opened on the spray gun is spun on " opening " position with " wire feed power initiation " switch again, presses " Switch of spray pistol " at last, sprays the zinc operation.
Claims (1)
1. anticorrosion method for inner framework of bus shelter ceiling is characterized in that it is made up of following steps, at first with the inner framework of bus shelter ceiling welding forming, removes the oxide skin at weld bond place; Carry out sandblasting then: with the pressurized air of 0.5～0.6MPa, the processing of scale removal, rusty stain is carried out on the surface that the nozzle of quartz sand by sandblast machine is sprayed onto the waiting booth inner frame; Use arc-spraying machine then, the compressed air-flow of zinc silk that melts is turned to the particle spraying that is evenly distributed arrive described waiting booth inner frame surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102621677A CN101928907A (en) | 2010-08-25 | 2010-08-25 | Anticorrosion method for inner framework of bus shelter ceiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102621677A CN101928907A (en) | 2010-08-25 | 2010-08-25 | Anticorrosion method for inner framework of bus shelter ceiling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101928907A true CN101928907A (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102621677A Pending CN101928907A (en) | 2010-08-25 | 2010-08-25 | Anticorrosion method for inner framework of bus shelter ceiling |
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| CN (1) | CN101928907A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111807A (en) * | 2013-02-01 | 2013-05-22 | 广东永强奥林宝国际消防汽车有限公司 | Welding processing method for vehicle frame |
| CN103480610A (en) * | 2013-09-05 | 2014-01-01 | 贵州安吉航空精密铸造有限责任公司 | Cleaning method for oxide skins of semi-closed tubular castings |
| CN107557720A (en) * | 2015-11-01 | 2018-01-09 | 肖剑 | A kind of method of work of electric power steel pipe tower rod thermal jet Zn system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225493Y (en) * | 1995-03-20 | 1996-04-24 | 成都市武侯区世达表面工程技术研究所 | Multipurpose combined steel plate water tank |
| CN1201841A (en) * | 1997-06-05 | 1998-12-16 | 江苏荣华电缆集团公司 | Manufacture of hot spray painted zinc (aluminum) unit as electric cable bridge support |
| CN1324958A (en) * | 2000-05-18 | 2001-12-05 | 中国科学院海洋研究所 | Anticorrosion method of marine steel |
| JP2006037217A (en) * | 2004-07-27 | 2006-02-09 | Kowa Industry Co Ltd | Corrosion prevention method for part near ground in iron product |
| CN1884616A (en) * | 2006-06-23 | 2006-12-27 | 攀枝花钢铁(集团)公司 | Corrosion-resisting steel rail and process for producing the same |
-
2010
- 2010-08-25 CN CN2010102621677A patent/CN101928907A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225493Y (en) * | 1995-03-20 | 1996-04-24 | 成都市武侯区世达表面工程技术研究所 | Multipurpose combined steel plate water tank |
| CN1201841A (en) * | 1997-06-05 | 1998-12-16 | 江苏荣华电缆集团公司 | Manufacture of hot spray painted zinc (aluminum) unit as electric cable bridge support |
| CN1324958A (en) * | 2000-05-18 | 2001-12-05 | 中国科学院海洋研究所 | Anticorrosion method of marine steel |
| JP2006037217A (en) * | 2004-07-27 | 2006-02-09 | Kowa Industry Co Ltd | Corrosion prevention method for part near ground in iron product |
| CN1884616A (en) * | 2006-06-23 | 2006-12-27 | 攀枝花钢铁(集团)公司 | Corrosion-resisting steel rail and process for producing the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111807A (en) * | 2013-02-01 | 2013-05-22 | 广东永强奥林宝国际消防汽车有限公司 | Welding processing method for vehicle frame |
| CN103111807B (en) * | 2013-02-01 | 2015-08-12 | 广东永强奥林宝国际消防汽车有限公司 | A kind of vehicle frame soldering method |
| CN103480610A (en) * | 2013-09-05 | 2014-01-01 | 贵州安吉航空精密铸造有限责任公司 | Cleaning method for oxide skins of semi-closed tubular castings |
| CN107557720A (en) * | 2015-11-01 | 2018-01-09 | 肖剑 | A kind of method of work of electric power steel pipe tower rod thermal jet Zn system |
| CN107740026A (en) * | 2015-11-01 | 2018-02-27 | 肖剑 | A kind of electric power steel pipe tower rod thermal jet Zn system |
| CN107841701A (en) * | 2015-11-01 | 2018-03-27 | 肖剑 | The method of work of electric power steel pipe tower rod thermal jet Zn system |
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Application publication date: 20101229 |