CN101205704A - Reforming technique for old coated express-way guard-rail plates - Google Patents
Reforming technique for old coated express-way guard-rail plates Download PDFInfo
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- CN101205704A CN101205704A CNA2006101616162A CN200610161616A CN101205704A CN 101205704 A CN101205704 A CN 101205704A CN A2006101616162 A CNA2006101616162 A CN A2006101616162A CN 200610161616 A CN200610161616 A CN 200610161616A CN 101205704 A CN101205704 A CN 101205704A
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Abstract
The invention discloses a retrofitting process for an old coating freeway protection plate and belongs to the metal surface coating technology. The process of the invention are as follows: shaping, shot blast, phosphating, double-coat coating and finished product; the shot blast refers to extending the shot blasting time until the coating on the plate surface is completely removed by a shot blaster. The invention has the advantage of saving the debinding working procedure.
Description
Technical field
The present invention relates to a kind of reforming technique for old coated express-way guard-rail plates, belong to the technical field of Treatment of Metal Surface and powdery paints electrostatic coating.
Background technology
Coated express-way guard-rail plates has following a few class: mopping blackboard, mopping cold galvanizing plate, plastic-blasting blackboard, plastic-blasting cold galvanizing plate and galvanizing by dipping plastic-blasting plate, the at present early stage above-mentioned all kinds of coated plates that adopt occurred filming breakage, come off or phenomenon such as ground corrosion, had a strong impact on the beautifying and decorating of speedway, need upgrade in time.Because of the influence of traffic accident or other contingency, the guardrail facility of damage also needs updating maintenance in addition.
Mostly have the value of utilizing again owing to will transform the guardrail board of maintenance, and all can satisfy the relevant national standard requirement through its internal performance after the conscientious transformation and decorative appearance quality, people have carried out extensive studies to this technology.
Existing reforming technique for old coated express-way guard-rail plates mainly contains following several: manually brush, return plating, take off and mould+plastic-blasting.The artificial brushing is exactly that the labor cleaning falls all kinds of impurity on the old plate such as dust, oil, pitch etc., carries out mopping or the processing of spraying paint, and this technological operation is simple, cost is low, on the way can carry out, but construction quality is poor, the enamelled coating poor durability, the corrosion part is difficult to effectively be protected.Returning plating is exactly the old plate after the shaping to be carried out galvanizing by dipping again handle, and handles the back plate surface coating and is fallen by high temperature sintering, and the plate outward appearance plates the zinc layer, but processing cost height, plate face are of poor quality, increase the wasting of resources and environment pollution.Take off mould+plastic-blasting is the technology of carrying out at plastic-blasting guardrail board maintenance, take off mould after, carry out plastic-blasting behind labor cleaning's guardrail board surface and handle, the problem of existence is the same.
Invention disclosed CN1718931 has proposed a kind of brand-new old speedway backplate hurdle reforming technology to this, its technology is: shaping → take off and mould → ball blast → phosphatization → two paint coating → finished products, this technology has obtained correctional effect preferably in actual applications, but take off the input of moulding arts demand equipment, its operation has danger, also cause certain environment pollution, also obviously increased processing cost simultaneously.
Summary of the invention
It is reforming technique for old coated express-way guard-rail plates that purpose of the present invention provides a kind of, is the improvement to the old speedway backplate of CN1718931 hurdle reforming technology patent.When keeping original technological advantage, eliminate and take off the influence of moulding link, simplify technology, cut down finished cost.
The present invention realizes by following technical scheme: a kind of improved reforming method of old express way guard plate, its technological process is: shaping → ball blast → phosphatization → two paint coating → finished products.
Described ball blast is meant the ball blast time that prolongs, till handling coating to the plate face and remove fully with shot-blast apparatus.According to practical application, to the enamelled coating on old plate surface, aging plastic-blasting layer (as having used 5-10), the above-mentioned coating after the Shot Blasting on the plate face can remove fully; For the old preferably plate of coating performance, when Shot Blasting, also can be as long as prolong the Shot Blasting time with its comprehensive removing.Thereby remove to take off and mould operation.
Above-mentioned phosphatization is to adopt the phosphorization reagent (adopting iron and steel class phosphorization reagent, blackboard galvanizing to adopt zinc phosphatization liquid as the blackboard ground) that adapts according to the plate surface situation, adopt the mode of dipping or spray to handle, technological process is degreasing → washing → table accent → phosphatization → washing → oven dry.
Old spraying guardrail board after the maintenance of this technological transformation has reached the requirement of GB/T18226-2000 " freeway traffic engineering steel member aseptic technic condition ".
The invention has the beneficial effects as follows: the present invention is simple for process, reliable in quality, and economical and efficient, environmentally friendly, the transformation of old spraying express-way guard-rail plates utilized again have good facilitation.
The specific embodiment:
Further illustrate the solution of the present invention and effect below in conjunction with embodiment.
Embodiment 1
A kind of old spraying express-way guard-rail plates is galvanizing by dipping plastic-blasting guardrail board, becomes finished product behind employing shaping → ball blast → phosphatization → two paint coating reforming technologies.
Adopt special-purpose shaping device that the old guardrail board that deformation takes place is carried out shaping earlier, adopt six ramming head suspension type shot-blast apparatus to handle guardrail board plate face, linear velocity 1.0 meter per seconds are removed impurity on the board falling face oxide etc. of a layer slag, zinc (as mould), and are formed certain roughness.
Fountain phosphatization processing line and suspension type shot-blast apparatus are on same suspension in the present embodiment, and guardrail board is washed → normal temperature phosphating (zinc phosphatization liquid) → washing → oven dry through dehydration behind the ball blast.
Oven dry back guardrail board is carried out two paint coatings, last part → cleaning surface impurity → spraying epoxy zinc-rich powdery paints (coating layer thickness 50-60 μ m) → curing → spraying weatherability freeway guardrail powdery paints (coating layer thickness 60-80 μ m) → curing → cooling → following part → packing.
Improved guardrail board meets the pertinent regulations of transportation industry standard JT/T281-95 " speedway corrugated beam steeled protection fence ", and anticorrosive coat meets the requirement of GB/T18226-2000 " freeway traffic engineering steel member aseptic technic condition ".
Embodiment 2
A kind of old spraying express-way guard-rail plates is cold galvanizing plastic-blasting guardrail board, becomes finished product behind employing shaping → ball blast → phosphatization → two paint coating reforming technologies.
Adopt special-purpose shaping device that the old guardrail board that deformation takes place is carried out shaping earlier, adopt two ramming head suspension type shot-blast apparatus to handle guardrail board plate face again, linear velocity 1.2 meter per seconds are removed impurity on the board falling face oxide etc. of a layer slag, zinc (as mould), and are formed certain roughness.
Not carrying out phosphatization in the present embodiment handles.
Guardrail board behind the ball blast is carried out two paint coatings, last part → cleaning surface impurity → spraying epoxy zinc-rich powdery paints (coating layer thickness 80-100 μ m, to remedy the deficiency of cold galvanizing layer thickness) → curing → spraying weatherability freeway guardrail powdery paints (coating layer thickness 80-100 μ m) → curing → cooling → following part → packing.
Improved guardrail board meets the pertinent regulations of transportation industry standard JT/T281-95 " speedway corrugated beam steeled protection fence ", after anticorrosive coat improved and improves, its thickness and antiseptic power all met the requirement of GB/T18226-2000 " freeway traffic engineering steel member aseptic technic condition ".
Embodiment 3
A kind of old spraying express-way guard-rail plates is blackboard plastic-blasting guardrail board, becomes finished product behind employing shaping → ball blast → phosphatization → two paint coating reforming technologies.
Adopt special-purpose shaping device that the old guardrail board that deformation takes place is carried out shaping earlier, adopt six ramming head suspension type shot-blast apparatus to handle guardrail board plate face again, linear velocity 1 meter per second is removed the impurity (as moulding a layer slag, iron and steel oxide etc.) on the board falling face, and is formed certain roughness.
Old plate carries out dip phosphatizing processing, degreasing → washing → middle temperature phosphating (iron and steel Zinc phosphating solution) → washing → hot water wash → dry after adopting steel iron phosphatising technology to ball blast.
Guardrail board after will drying is carried out two paint coatings, last part → cleaning surface impurity → spraying epoxy zinc-rich powdery paints (coating layer thickness 80-100 μ m, to remedy the deficiency of cold galvanizing layer thickness) → curing → spraying weatherability freeway guardrail powdery paints (coating layer thickness 80-100 μ m) → curing → cooling → following part → packing.
Improved guardrail board meets the pertinent regulations of transportation industry standard JT/T281-95 " speedway corrugated beam steeled protection fence ", after anticorrosive coat improved and improves, its thickness and antiseptic power all met the requirement of GB/T18226-2000 " freeway traffic engineering steel member aseptic technic condition ".
Claims (2)
1. reforming technique for old coated express-way guard-rail plates, its technological process is: shaping → ball blast → phosphatization → two paint coating → finished products;
Described ball blast is meant and prolongs the ball blast time, promptly handles till the coating on the plate face removes fully with shot-blast apparatus.
2. reforming technique for old coated express-way guard-rail plates according to claim 1, it is characterized in that: phosphatization is to adopt the phosphorization reagent that adapts according to the plate surface situation, adopt iron and steel class phosphorization reagent, blackboard galvanizing to adopt zinc phosphatization liquid as the blackboard ground, adopt the mode of dipping or spray to handle, technological process is degreasing → washing → table accent → phosphatization → washing → oven dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101616162A CN101205704A (en) | 2006-12-22 | 2006-12-22 | Reforming technique for old coated express-way guard-rail plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101616162A CN101205704A (en) | 2006-12-22 | 2006-12-22 | Reforming technique for old coated express-way guard-rail plates |
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| Publication Number | Publication Date |
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| CN101205704A true CN101205704A (en) | 2008-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006101616162A Pending CN101205704A (en) | 2006-12-22 | 2006-12-22 | Reforming technique for old coated express-way guard-rail plates |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994300A (en) * | 2010-10-22 | 2011-03-30 | 徐州正菱涂装有限公司 | Novel production technology for processing of protective guard surface on line |
| CN103406721A (en) * | 2013-07-10 | 2013-11-27 | 重庆正达护栏有限公司 | Assembled zinc steel guardrail production technology |
| CN103590352A (en) * | 2013-11-06 | 2014-02-19 | 湖北秭归新亚交通设施有限公司 | Processing technology for waste hot-dip galvanized road steel barrier |
| CN105926498A (en) * | 2016-05-12 | 2016-09-07 | 江苏固格澜栅防护设施有限公司 | Protective fence with surface being coated with drainage layers and manufacturing method |
-
2006
- 2006-12-22 CN CNA2006101616162A patent/CN101205704A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994300A (en) * | 2010-10-22 | 2011-03-30 | 徐州正菱涂装有限公司 | Novel production technology for processing of protective guard surface on line |
| CN103406721A (en) * | 2013-07-10 | 2013-11-27 | 重庆正达护栏有限公司 | Assembled zinc steel guardrail production technology |
| CN103590352A (en) * | 2013-11-06 | 2014-02-19 | 湖北秭归新亚交通设施有限公司 | Processing technology for waste hot-dip galvanized road steel barrier |
| CN103590352B (en) * | 2013-11-06 | 2015-07-08 | 湖北秭归新亚交通设施有限公司 | Processing technology for waste hot-dip galvanized road steel barrier |
| CN105926498A (en) * | 2016-05-12 | 2016-09-07 | 江苏固格澜栅防护设施有限公司 | Protective fence with surface being coated with drainage layers and manufacturing method |
| CN105926498B (en) * | 2016-05-12 | 2019-02-22 | 江苏固格澜栅防护设施有限公司 | Surface is covered with the protective fence and production method of hydrophobic layer |
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Open date: 20080625 |