CN101250701B - Steel tank plastic-pasting internal lining antisepsis method - Google Patents
Steel tank plastic-pasting internal lining antisepsis method Download PDFInfo
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- CN101250701B CN101250701B CN2008100608793A CN200810060879A CN101250701B CN 101250701 B CN101250701 B CN 101250701B CN 2008100608793 A CN2008100608793 A CN 2008100608793A CN 200810060879 A CN200810060879 A CN 200810060879A CN 101250701 B CN101250701 B CN 101250701B
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Abstract
The invention relates to a method for preventing corrosion of plastic stuck inside lining of a steel-made tank body, which comprises following steps: removing an oxide layer and an oil stain layer on the inner surface of the steel-made tank body, mixing phosphating solution to phosphatize the surface of the steel-made tank body, using clear water to clean the steel-made tank body after phosphatizing, drying, mixing adhesive, evenly coating the adhesive on the inner surface of the steel-made tank body, clinging a plastic plate whose thickness is 0.5-30mm on the inner surface of the steel-made tank body, leaving joints of 0.1-10cm between different plastic plates, using a stop plate to seal each interface of the steel-made tank body, injecting compressed air into the steel-made tank body, achieving the curing time of the adhesive under the condition of constant pressure 0.03-0.1MPa, curing the adhesive, and then using welding rods to fill the joints between each plastic plate through welding. The method of the invention has the advantages that firstly, an adhesive layer is provided between the steel-made tank body and a plastic anti-corrosion layer, which enables the steel-made tankbody and the plastic anti-corrosion layer to be compactly connected, corrosion medium can not be rapidly dispersed by any possibility that leakage happens, secondly, the plastic layer has a comparatively big regulating range, which can satisfy the demands of different users, thirdly, the joints between each plastic plate can be adapted to the changes of the environmental temperature after being filled with the welding rods, and the reliability of products is increased.
Description
Technical field:
The present invention relates to a kind of steel tank plastic-pasting internal lining antisepsis method, be mainly used in the anti-corrosive treatment of steel tank.
Background technology:
Steel tank generally adopts the lining molding technology for reaching the protection against corrosion requirement.The lining of the prior art mode of moulding mainly is that steel mesh is moulded the composite rotational lining method (for example publication number is CN1686766, name is called the patent application of " steel net plastic composite structured groove jar and roll moulding shaping technology thereof ") and plastic-blasting, the goods cost of rotational moulding lining technique is higher, the plastic layer that serves as a contrast and steel tank surface break away from, in case leak, caustic soln will be penetrated into whole tank body, and tank body is corroded very soon.Plastic-blasting technique mainly is plastic powders flame plating, and coating is thinner, but the intensity of plastics own is little, and as the corrosion-resistant coating of tank body, especially portable tank body is easy to break, and damaged condition and rotational moulding are similar.
Summary of the invention:
Main purpose of the present invention is a kind of brand-new steel tank plastic-pasting internal lining antisepsis method of exploitation, make combining that tank body and plastic layer can be accurate, fully harsh working conditions such as satisfied temperature alternation, hydraulic shock solves the drawback that prior art exists, and improves anticorrosive quality and reliability.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the key step of this steel tank plastic-pasting internal lining antisepsis method is as follows:
One, remove zone of oxidation, the clc layer of steel tank internal surface clean with technologies such as polishing, sandblasts;
Two, the special phosphatization liquid of configuration carries out bonderizing to the steel tank surface, the weight proportion of described phosphatization liquid is 50～100 parts of phosphoric acid, 1～10 part of alcohol, 25～50 parts of Trisodium Citrates, 10～50 parts in tensio-active agent, after the phosphatization with clear water with steel tank wash clean, airing;
Three, dispose tackiness agent, tackiness agent is coated in equably the internal surface of steel tank with technologies such as spraying or blade coatings;
Four, thickness is the internal surface that the plastic plate of 0.5～30mm sticks on steel tank, reserves the seam of 0.1～10cm between the different plastic plates;
Five, each interface of steel tank is sealed with blind plate, poured pressurized air, be issued to the adhesive solidification time in the condition of constant voltage 0.03～0.1Mpa to steel tank;
Six, behind the adhesive solidification, the slit between each plastic plate is filled up with the welding rod welding with weldprocedure.
Plastic plate of the present invention adopts a kind of in polypropylene, polyvinyl chloride, tetrafluoroethylene, the polyethylene according to different service requirementss.
Tackiness agent of the present invention adopts polyurethane adhesive.
Advantage of the present invention comprises:
1, between steel tank and the plastics preservative coat adhesive layer is arranged, both can closely be connected, can delamination, just in case leak, corrosive medium can not spread rapidly.
2, the plastic layer regulation range is bigger.Plastic layer of the present invention can be pressed design thickness and select between 0.5～30mm, to satisfy the requirement of different user to weight, intensity and cost.
3, not only can guarantee the integrity of plastic plate but also play the effect at expansion joint after the slit between each plastic plate is filled up with welding rod, the variation of temperature that can conform (expanding with heat and contract with cold) improves reliability of products.
But 4, simple, the main equipment site operation of technology of the present invention.
Embodiment:
The key step of the embodiment of the invention is as follows:
One, after steel tank completes, remove zone of oxidation, the clc layer of steel tank internal surface clean with technologies such as polishing, sandblasts.
Two, the configuration special phosphatization liquid (50～100 parts of phosphoric acid, 1～10 part of alcohol, 25～50 parts of Trisodium Citrates, 10～50 parts in tensio-active agent) bonderizing is carried out on the steel tank surface, after the phosphatization with clear water with steel tank wash clean, airing.
Three, configuration tackiness agent adopts tackiness agent (as polyurethane adhesive) technologies such as spraying or blade coating to be coated in the internal surface (comprising adapters, flange section) of steel tank equably, is easy construction, can local applying glue, and serve as a contrast again and mould.
Four, need be with different plastic materials (as polyvinyl chloride) according to different service requirementss, can be materials such as polypropylene, polyvinyl chloride, tetrafluoroethylene, polyethylene, plastics need be made the plastic plate of thickness 0.5～30mm, according to the shape of steel tank plastic plate is sticked on the internal surface of steel tank, reserve the seam of 0.1～10cm simultaneously between the different plates.
Five, each interface of steel tank is sealed with blind plate, poured pressurized air, keep constant voltage (to be generally 0.03～0.1Mpa), to reach the adhesive solidification time (is 60～90 minutes to polyurethane adhesive) to steel tank.
Six, behind the adhesive solidification, the slit between each plastic plate is filled up with welding rod (with the plastics of the identical material of plastic plate) welding with weldprocedure.
Advantage of the present invention comprises:
1, between steel tank and the plastic anti-corrosion layer adhesive layer is arranged, both can closely be connected, can delamination, just in case leak, corrosive medium can not spread rapidly. 2, the plastic layer adjustable range is bigger, is the patent application document of CN1686766 referring to publication number, and the minimum thickness that steel mesh is moulded the composite rotational lining technique is 13mm, and the thickness of plastic-blasting generally is 1～10mm. Plastic layer of the present invention can be pressed design thickness and select between 0.5～30mm, to satisfy different user to the requirement of weight, intensity and cost. 3, not only can guarantee the integrality of plastic plate but also play the effect at expansion joint after the slit between each plastic plate is filled up with welding rod, the variation of the temperature that can conform (expanding with heat and contract with cold), the reliability of raising product.
But 4, simple, the main equipment site operation of technology of the present invention.
Claims (3)
1. steel tank plastic-pasting internal lining antisepsis method, it is characterized in that: the key step of steel tank plastic-pasting internal lining antisepsis method is as follows:
One, remove zone of oxidation, the clc layer of steel tank internal surface clean with polishing, blasting craft;
Two, the special phosphatization liquid of configuration carries out bonderizing to the steel tank surface, the weight proportion of described phosphatization liquid is 50～100 parts of phosphoric acid, 1～10 part of alcohol, 25～50 parts of Trisodium Citrates, 10～50 parts in tensio-active agent, after the phosphatization with clear water with the steel tank wash clean, dry;
Three, dispose tackiness agent, tackiness agent is coated in equably the internal surface of steel tank with spraying or blade coating technology;
Four, thickness is the internal surface that the plastic plate of 0.5～30mm sticks on steel tank, reserves the seam of 0.1～10cm between the different plastic plates;
Five, each interface of steel tank is sealed with blind plate, poured pressurized air, be issued to the adhesive solidification time in the condition of constant voltage 0.03～0.1Mpa to steel tank;
Six, behind the adhesive solidification, the slit between each plastic plate is filled up with the welding rod welding.
2. steel tank plastic-pasting internal lining antisepsis method according to claim 1 is characterized in that: described plastic plate adopts a kind of in polypropylene, polyvinyl chloride, tetrafluoroethylene, the polyethylene according to different service requirementss.
3. steel tank plastic-pasting internal lining antisepsis method according to claim 1 is characterized in that: described tackiness agent adopts polyurethane adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100608793A CN101250701B (en) | 2008-03-24 | 2008-03-24 | Steel tank plastic-pasting internal lining antisepsis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100608793A CN101250701B (en) | 2008-03-24 | 2008-03-24 | Steel tank plastic-pasting internal lining antisepsis method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101250701A CN101250701A (en) | 2008-08-27 |
| CN101250701B true CN101250701B (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100608793A Expired - Fee Related CN101250701B (en) | 2008-03-24 | 2008-03-24 | Steel tank plastic-pasting internal lining antisepsis method |
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| CN (1) | CN101250701B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133958B (en) * | 2011-01-17 | 2012-10-10 | 江阴东大新材料研究院 | Method for preparing complete anticorrosive coating on inner surface of steel closed container |
| CN102228881B (en) * | 2011-03-16 | 2014-06-18 | 浙江吉利汽车研究院有限公司 | Gluing anti-corrosion process of vehicle cavity structure and gluing shielding tool for process |
| CN104164663A (en) * | 2014-08-19 | 2014-11-26 | 河南科技大学 | Normal-temperature quick phosphating solution for cold molding of metal and preparation method thereof |
| CN106273413B (en) * | 2016-08-16 | 2018-05-18 | 浙江特塑龙化工设备有限公司 | A kind of PETT Lining Technologies |
| CN107116783A (en) * | 2017-05-15 | 2017-09-01 | 丁冲 | A kind of cylinder of steel internal lining antisepsis method |
| CN107738842A (en) * | 2017-10-10 | 2018-02-27 | 张永华 | A kind of sunken tank fibre reinforced plastics dual-layer lining moulds construction technology admittedly safely |
| CN107891619A (en) * | 2017-12-06 | 2018-04-10 | 南京协和助剂有限公司 | A kind of PTFE plastic plates are used for the anticorrosion process of tank inside |
| CN107878953B (en) * | 2017-12-06 | 2024-02-06 | 石家庄利鼎电子材料有限公司 | Anti-corrosion container and manufacturing method thereof |
| CN110370652A (en) * | 2019-08-20 | 2019-10-25 | 江苏科环新材料有限公司 | A kind of steel spent acid alkali storage tank inner surface anti-corrosion method |
| CN113046975A (en) * | 2021-03-15 | 2021-06-29 | 扬中市金坤电力设备有限公司 | Full-plastic anti-corrosion process for inner bin of refiner in spinning workshop |
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2008
- 2008-03-24 CN CN2008100608793A patent/CN101250701B/en not_active Expired - Fee Related
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| CN101250701A (en) | 2008-08-27 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Nanhua Anticorrosion Equipments Co., Ltd. Assignor: Chen Xiaoyu Contract record no.: 2011330000335 Denomination of invention: Steel tank plastic-pasting internal lining antisepsis method Granted publication date: 20110126 License type: Exclusive License Open date: 20080827 Record date: 20110425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20150324 |
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