CN104174581A - Surface treatment method for steel-structure parts - Google Patents
Surface treatment method for steel-structure parts Download PDFInfo
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- CN104174581A CN104174581A CN201410433666.6A CN201410433666A CN104174581A CN 104174581 A CN104174581 A CN 104174581A CN 201410433666 A CN201410433666 A CN 201410433666A CN 104174581 A CN104174581 A CN 104174581A
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Abstract
The invention discloses a surface treatment method for steel-structure parts. The method mainly includes steps: using a wet sand-blasting machine for primary sand blasting treatment of outer surfaces, with scales, rusts and oil stains removed, of the steel-structure parts, and cleaning and roughening the surfaces under the impact action of high-speed sand flow; after primary sand blasting treatment is finished, using cured epoxy zinc-rich paint for secondary spraying treatment; after secondary spraying treatment is finished, using varnish for tertiary varnishing, and finishing the surface treatment after natural drying is performed. The surface treatment method for the steel-structure parts overcomes defects of poor corrosion resistance, high cost, poor environment friendliness and the like in the prior art and has the advantages of excellent corrosion resistance, low cost and high environment friendliness.
Description
Technical field
The present invention relates to steel construction technical field, particularly, relate to a kind of surface treatment method of steel construction part.
Background technology
Steel construction part is generally fabricated from iron, and meets water wet and gets rusty easily.For example, steel construction casing is made up of outer cage and inner casing, outer cage is welded by cylinder and reinforcement gusset, the Excircle machining of inner casing goes out tank along the circumferential direction, case material is carbon steel, steel construction cooling water in use, storage process easily corrodes casing to be caused getting rusty, and rust wadding stops up water inlet pipe and water outlet pipe, causes steel construction cisco unity malfunction.
Both at home and abroad steel construction part not yet does surface treatment so far, and it is special in cooling fluid just to adopt, but cost is higher.Normally work for guarantee steel construction part, need to carry out surface treatment to steel construction part, spray suitable anticorrosive paint, avoid the corrosion of cooling water to carbon steel steel construction part.
Realizing in process of the present invention, inventor finds at least to exist in prior art the defect such as antiseptic power is poor, cost is high and the feature of environmental protection is poor.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of surface treatment method of steel construction part, to realize the advantage that antiseptic power is good, cost is low and the feature of environmental protection is good.
For achieving the above object, the technical solution used in the present invention is: a kind of surface treatment method of steel construction part, mainly comprises:
A, employing liquid sandblasting machine, the outer surface of the steel construction part to scale removal, iron rust and greasy dirt carries out a blasting treatment, is beneficial to percussion cleaning and the alligatoring matrix surface of high speed sand flow;
The operation of a described blasting treatment, specifically comprises:
Employing compressed air is power, to form high velocity jet bundle, the material spray high velocity jet that comprises copper ore, quartz sand, diamond dust, iron sand, SEMEN AMOMI LONGILIGULA is arrived and needs steel construction piece surface to be processed, steel construction part outer surface is changed, due to impact and the shear action of abrasive material to surface of the work, make the surface of steel construction part obtain required cleannes and different roughness, the mechanical performance of steel construction piece surface is improved;
After b, a blasting treatment, use the epoxy zinc-enriched paint of slaking, carry out secondary spray treatment;
The operation of described secondary spray treatment, specifically comprises:
With pressure be 0.5-3.0kg/ ㎝
2the steel construction part outer surface of pistol after to a blasting treatment spray, between spray gun and coated article surface, there is the inclination angle of 15 degree, rifle mouth is 8-12cm to coated article surface distance; First build is 10 ± 5 μ m, after first dry film surface becomes dry, sprays immediately second; Second build is 20 ± 5 μ m, after second dry film surface becomes dry, and Pen tri-roads immediately; Second build is 40 ± 5 μ m, after second dry film surface becomes dry, and Pen tri-roads immediately;
After c, secondary spray treatment, use varnish, carry out three moppings, complete this surface treatment after natural drying.
The surface treatment method of the steel construction part of various embodiments of the present invention, owing to mainly comprising: adopt liquid sandblasting machine, the outer surface of the steel construction part to scale removal, iron rust and greasy dirt carries out a blasting treatment, is beneficial to percussion cleaning and the alligatoring matrix surface of high speed sand flow; After a blasting treatment, use the epoxy zinc-enriched paint of slaking, carry out secondary spray treatment; After secondary spray treatment, use varnish, carry out three moppings, complete this surface treatment after natural drying; Thereby can overcome the defect that in prior art, antiseptic power is poor, cost is high and the feature of environmental protection is poor, to realize the advantage that antiseptic power is good, cost is low and the feature of environmental protection is good.
Other features and advantages of the present invention will be set forth in the following description, and, partly from description, become apparent, or understand by implementing the present invention.
Below by embodiment, technical scheme of the present invention is described in further detail.
Detailed description of the invention
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
According to the embodiment of the present invention, provide a kind of surface treatment method of steel construction part.
The surface treatment method of the steel construction part of the present embodiment, mainly comprises:
A, employing liquid sandblasting machine, the outer surface of the steel construction part to scale removal, iron rust and greasy dirt carries out a blasting treatment, is beneficial to percussion cleaning and the alligatoring matrix surface of high speed sand flow;
The operation of a blasting treatment, specifically comprises:
Employing compressed air is power, to form high velocity jet bundle, the material spray high velocity jet that comprises copper ore, quartz sand, diamond dust, iron sand, SEMEN AMOMI LONGILIGULA is arrived and needs steel construction piece surface to be processed, steel construction part outer surface is changed, due to impact and the shear action of abrasive material to surface of the work, make the surface of steel construction part obtain required cleannes and different roughness, the mechanical performance of steel construction piece surface is improved;
After b, a blasting treatment, use the epoxy zinc-enriched paint of slaking, carry out secondary spray treatment;
The operation of secondary spray treatment, specifically comprises:
With pressure be 0.5-3.0kg/ ㎝
2the steel construction part outer surface of pistol after to a blasting treatment spray, between spray gun and coated article surface, there is the inclination angle of 15 degree, rifle mouth is 8-12cm to coated article surface distance; First build is 10 ± 5 μ m, after first dry film surface becomes dry, sprays immediately second; Second build is 20 ± 5 μ m, after second dry film surface becomes dry, and Pen tri-roads immediately; Second build is 40 ± 5 μ m, after second dry film surface becomes dry, and Pen tri-roads immediately;
After c, secondary spray treatment, use varnish, carry out three moppings, complete this surface treatment after natural drying.
The surface treatment method of the steel construction part of above-described embodiment, cooling water easily corrodes casing and causes getting rusty using, in storage process can to solve existing steel construction, and rust wadding stops up water inlet pipe and water outlet pipe, causes the technical problem of steel construction cisco unity malfunction.Like this, by steel construction part is carried out to surface treatment, spray suitable anticorrosive paint, avoid water, air and the corrosion of other corrosive liquids to steel construction part, can ensure that steel construction normally works.
The surface treatment method of the steel construction part of above-described embodiment, micro-3 DEG C-45 DEG C of construction environment temperature, the micro-8-50% of relative humidity, construction environment cleaning, without dust and greasy dirt.Coating equipment adopts aerial spraying, uses pressurized tank and the domestic PQ-2 type spray gun with agitator when spraying, spray gun bore 1.3-1.9mm, and it is special that equipment is necessary for water-based.The surface treatment of base material: steel structure surface is more than blasting treatment reaches Sa2.5 level, and roughness reaches 18-23 micron; For preventing that steel from getting rusty, in general 3 hours, spray complete.Coating: first component (liquid): component B (powder)=2:6; Ground temperature requirement, higher than 12 DEG C, in stirring first component solution, slowly evenly adds zinc powder, first component solution must not be poured in zinc powder and is stirred; Mixing time 3-8 minute, after having stirred, coating leaves standstill slaking 30 minutes, then coating is stirred and carries out application, as occurs sagging phenomenon, can proper extension curing time and the suitable emulsion ratio that reduces.Application adopts spraying cube formula, and spraying paint film thickness is followed successively by 10 ± 5 μ m, 20 ± 5 μ m, 40 ± 5 μ m; The pressure of whole pressurized tank is 1.5-6kg/ ㎝ 2, pistol is vertical all the time with coated article surface, rifle mouth is 8-12cm to coated article surface distance, adopt wet spray evenly, in the same way, each covering previous 1/4 ~ 1/3, first build is 10 ± 5 μ m, after first surface drying, should spray immediately second, second build is 20 ± 5 μ m, Pen tri-roads immediately after second surface drying, San road build is 40 ± 5 μ m, should shorten the interval time between three road coatings as far as possible, avoids front one coating surface contaminated.Film thickness detects: application was tested to coating layer thickness with boomerang after 20 hours, and the measured value of coating 85% is not less than the build of regulation, and all the other measured values of 15% are not less than 85% of regulation thickness.
When coating thickness measurement, taking steel member as a measuring unit, in especially big component surface, taking 8 ㎡ as a measuring unit, each measuring unit at least should be chosen three place's reference surfaces, and it is 6 mean values of diagonal interleave on 8 × 8cm area that each reference surface is measured.Surface area is less than the member of 1.5 ㎡, measures 5 points, averages.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (1)
1. a surface treatment method for steel construction part, is characterized in that, mainly comprises:
A, employing liquid sandblasting machine, the outer surface of the steel construction part to scale removal, iron rust and greasy dirt carries out a blasting treatment, is beneficial to percussion cleaning and the alligatoring matrix surface of high speed sand flow;
The operation of a described blasting treatment, specifically comprises:
Employing compressed air is power, to form high velocity jet bundle, the material spray high velocity jet that comprises copper ore, quartz sand, diamond dust, iron sand, SEMEN AMOMI LONGILIGULA is arrived and needs steel construction piece surface to be processed, steel construction part outer surface is changed, due to impact and the shear action of abrasive material to surface of the work, make the surface of steel construction part obtain required cleannes and different roughness, the mechanical performance of steel construction piece surface is improved;
After b, a blasting treatment, use the epoxy zinc-enriched paint of slaking, carry out secondary spray treatment;
The operation of described secondary spray treatment, specifically comprises:
With pressure be 0.5-3.0kg/ ㎝
2the steel construction part outer surface of pistol after to a blasting treatment spray, between spray gun and coated article surface, there is the inclination angle of 15 degree, rifle mouth is 8-12cm to coated article surface distance; First build is 10 ± 5 μ m, after first dry film surface becomes dry, sprays immediately second; Second build is 20 ± 5 μ m, after second dry film surface becomes dry, and Pen tri-roads immediately; Second build is 40 ± 5 μ m, after second dry film surface becomes dry, and Pen tri-roads immediately;
After c, secondary spray treatment, use varnish, carry out three moppings, complete this surface treatment after natural drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433666.6A CN104174581A (en) | 2014-08-29 | 2014-08-29 | Surface treatment method for steel-structure parts |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410433666.6A CN104174581A (en) | 2014-08-29 | 2014-08-29 | Surface treatment method for steel-structure parts |
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| CN104174581A true CN104174581A (en) | 2014-12-03 |
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| CN201410433666.6A Pending CN104174581A (en) | 2014-08-29 | 2014-08-29 | Surface treatment method for steel-structure parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282888A (en) * | 2016-08-31 | 2017-01-04 | 江苏实为半导体科技有限公司 | A kind of method increasing metal material surface roughness |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001162536A (en) * | 1999-12-10 | 2001-06-19 | Bridgestone Corp | Metallic member for adhesion by vulcanization |
| CN103008207A (en) * | 2012-12-14 | 2013-04-03 | 中船重工电机科技股份有限公司 | Antiseptic treatment process of water jacket motor base |
-
2014
- 2014-08-29 CN CN201410433666.6A patent/CN104174581A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001162536A (en) * | 1999-12-10 | 2001-06-19 | Bridgestone Corp | Metallic member for adhesion by vulcanization |
| CN103008207A (en) * | 2012-12-14 | 2013-04-03 | 中船重工电机科技股份有限公司 | Antiseptic treatment process of water jacket motor base |
Non-Patent Citations (2)
| Title |
|---|
| 刘仁志: "《现代电镀手册》", 31 August 2010, 化学工业出版社 * |
| 孙晓红等: "《建筑装饰材料与施工工艺》", 31 August 2013, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282888A (en) * | 2016-08-31 | 2017-01-04 | 江苏实为半导体科技有限公司 | A kind of method increasing metal material surface roughness |
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Application publication date: 20141203 |