CN203565305U - Processor for steel pipe surface coating before coating - Google Patents
Processor for steel pipe surface coating before coating Download PDFInfo
- Publication number
- CN203565305U CN203565305U CN201320730489.9U CN201320730489U CN203565305U CN 203565305 U CN203565305 U CN 203565305U CN 201320730489 U CN201320730489 U CN 201320730489U CN 203565305 U CN203565305 U CN 203565305U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- coating
- steel tube
- phosphoric acid
- tube surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 130
- 239000010959 steel Substances 0.000 title claims abstract description 130
- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 238000000576 coating method Methods 0.000 title claims abstract description 44
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000004140 cleaning Methods 0.000 claims abstract description 38
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 37
- 238000005406 washing Methods 0.000 claims abstract description 23
- 238000004532 chromating Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims description 19
- 239000000428 dust Substances 0.000 claims description 17
- 239000003595 mist Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007602 hot air drying Methods 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 238000002161 passivation Methods 0.000 claims description 3
- 238000005422 blasting Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 abstract description 5
- 239000008367 deionised water Substances 0.000 abstract description 4
- 229910021641 deionized water Inorganic materials 0.000 abstract description 4
- 230000035882 stress Effects 0.000 abstract description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004519 grease Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract description 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 3
- -1 moisture Chemical compound 0.000 abstract description 3
- 239000012188 paraffin wax Substances 0.000 abstract description 3
- 239000000741 silica gel Substances 0.000 abstract description 3
- 229910002027 silica gel Inorganic materials 0.000 abstract description 3
- 230000002706 hydrostatic effect Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 abstract description 2
- 238000000053 physical method Methods 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000008642 heat stress Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 229920000098 polyolefin Polymers 0.000 description 5
- 229920006334 epoxy coating Polymers 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Landscapes
- Chemical Treatment Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The utility model relates to a processor for a steel pipe surface coating before coating. The surface derusting grade of a steel pipe after being processed through physical methods such as shot blasting reaches Sa21 / 2 of a Swedish standard, then secondary cleaning is carried out on the steel pipe through phosphoric acid washing, high-pressure washing and other processes, the steel pipe is chromated, and the requirement for the optimum adhesive force of the coating ultimately coated and a steel pipe basal body can be completely met. After impeller blasting and other physical modes, phosphoric acid washing, deionized water washing and chromating are added, metallic oxide, hydroxide, grease, paraffin, oil content, silica gel, moisture, chloride and the like, left on the surface of the steel pipe, are eliminated after shot blasting and other physical methods, binding force of the coating and the steel pipe basal body is increased, stripping force generated due to temperature variation, quick chilling of the coating, hydrostatic pressure testing of the steep pipe, soil stress, heat stress and the like between the steel pipe basal body and the coating is offset, and coating quality of the coating of the steel pipe is improved.
Description
Technical field
The utility model belongs to steel pipe and is coated with formable layer front surface preconditioning technique field, is that a kind of steel tube surface coating applies pretreating device specifically.
Background technology
In recent years, the long distance pipelines such as oil, natural gas, plumbing, adopted 3LPO outer anticorrosive coating more, were referred to as three layers of polyolefin coating.In three layers of polyolefin coating long distance pipeline of the external long-term operation such as Iranian oil pipeline, Mexico's gas pipeline, some pipeline section has all occurred that anticorrosive coat is large-area and has peeled off, domestic three strata alkene corrosion-inhibiting coating pipelines, because the buried time is shorter, also do not occur that large area comes off, but according to coating inefficacy analysis of cases in the world, likely after the several years, also there will be corrosion-inhibiting coating to peel off problem.
By inefficacy analysis of cases, the coating of peeling off is, epoxy coating and middle bonding agent and outermost layer polyolefin are that an entirety is peeled off from steel pipe body surface, this is because polyolefin layer is cooling in coating, trial run, hydrostatic test, in the processes such as normal operation (soil stress and thermal stress), make the larger stress of generation between welded ring oxygen coating and steel pipe body, if in addition due to settings that is above standard such as the salt content of steel tube surface, in During Process of Long-term Operation, because causing the coated cathode in the high region of salt content, additional cathodic protection peels off, reduced the adhesion of coating and steel pipe body, so when the adhesion between epoxy coating and steel pipe body cannot be offset produced stress, will cause the entirety of coating to peel off.
Summary of the invention
In view of above-mentioned, chemical processing device before the purpose of this utility model is to provide a kind of steel tube surface coating to apply.By phosphoric acid cleaning device, phosphoric acid acid mist treatment device phosphoric acid is washed, steel tube surface remnants after impeller blasting are removed in high-pressure washing device washing metal oxide, hydroxide, grease, paraffin, oil content, silica gel, moisture, chloride etc.Chromating liquid by chromating device at pipe coating, generates one deck chromium/silicon/zinc complex oxide layer in steel tube surface, increases the binding ability with epoxy coating.
The purpose of this utility model is to reach by following measures:
A kind of steel tube surface coating applies pretreating device, mainly comprise conveying roller, steel pipe, blast cleaner for outer surface of steel pipe, outer wall of steel pipe dust cleaning plant, phosphoric acid cleaning device, phosphoric acid acid mist treatment device, high-pressure washing device, hot-air drying unit, verifying bench, chromating device, heater and steel pipe external coating application system.By delivery roller, drive steel pipe worm drive forward, through blast cleaner for outer surface of steel pipe, the shot on blast cleaner for outer surface of steel pipe impacts the floating embroidery oxide skin of removing steel tube surface; Steel pipe is again through outer wall of steel pipe dust cleaning plant, and the cleaning brush on outer wall of steel pipe dust cleaning plant is removed, the dust of absorption steel tube surface; Steel pipe is again by phosphoric acid cleaning device and phosphoric acid acid mist treatment device, and phosphoric acid cleaning device and phosphoric acid acid mist treatment device are vaporific ejection by mixture phosphoric acid liquid by nozzle, are sprayed on steel tube surface; Then adopt high pressure water cleaning device, steel pipe is carried out to high pressure water washing; Steel tube surface moisture after steel pipe after washing adopts heating, drying device to washing is dried; After drying, steel pipe is lifted and is placed on verifying bench through lower pipe device, detects steel tube surface dust degree grade; Steel pipe is sent to chromating device through conveying roller spiral, chromating device is the vaporific rotating steel tube surface that is sprayed at by the chromating liquid of mixture through special nozzle, and by passivating solution with elastic wear-resisting scraper plate even blade coating in steel tube surface, complete passivation after steel pipe continue after heater heating, to enter steel pipe external coating application system by transmission.
Above-mentioned phosphoric acid cleaning device arranges three groups of shower nozzles, and vertically downward, shower nozzle distance steel tube wall is 200mm to nozzle, 60 ° of shower nozzle angle of scatterings, and three groups of sprinkler spacings are respectively 220mm.
Four groups of shower nozzles are set in above-mentioned high-pressure washing device, and vertically downward, shower nozzle distance steel tube wall is 150mm to nozzle, 30 ° of shower nozzle angle of scatterings, and four groups of sprinkler spacings are respectively 70mm.
Above-mentioned chromating device arranges three groups of shower nozzles, and vertically downward, shower nozzle adopts acidproof material to nozzle, and shower nozzle distance steel tube wall is 200mm, 60 ° of shower nozzle angle of scatterings, and three groups of sprinkler spacings are respectively 220mm.
The advantage that the utility model compared with prior art has and the beneficial effect of generation are:
1, after steel pipe impeller blasting line physical surface treatment, increased outer wall of steel pipe impeller blasting, pretreatment is washed and washed to the cleaning of outer wall of steel pipe dust, phosphoric acid; Metal oxide, the hydroxide of the residual steel tube surface remnants of steel tube surface, grease, paraffin, oil content, silica gel, moisture, chloride etc. have been removed after impeller blasting.
2, the device simple that the utility model adopts, operation is simple, through phosphoric acid, wash, wash, other impurity that convenient removing physics rust cleaning rear surface is left over, increased again chromating, in clean steel tube surface, generate one deck chromium/silicon/zinc complex oxide layer, increase and epoxy coating adhesion the possibility of peeling off from steel pipe body to stop three layers of polyolefin coating completely.
3, the steel tube surface coating that the utility model provides applies pretreating device, and it is convenient to be combined with former molding mode, is easy to grasp, and is not changing on the basis of former technique, is suitable for those skilled in the art and grasps.Be easy to promote on existing steel pipe coating moulding process.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1-conveying roller, 2-steel pipe, 3-blast cleaner for outer surface of steel pipe, 4-outer wall of steel pipe dust cleaning plant, 5-phosphoric acid cleaning device, 6-phosphoric acid acid mist treatment device, 7-high-pressure washing device, 8-hot-air drying unit, 9-verifying bench, 10-chromating device, 11-heater, 12-steel pipe external coating application system.
The specific embodiment
as shown in Figure 1,a kind of steel tube surface coating applies pretreating device, mainly comprise conveying roller 1, steel pipe 2, blast cleaner for outer surface of steel pipe 3, outer wall of steel pipe dust cleaning plant 4, phosphoric acid cleaning device 5, phosphoric acid acid mist treatment device 6, high-pressure washing device 7, hot-air drying unit 8, verifying bench 9, chromating device 10, heater 11 and steel pipe external coating application system 12.By delivery roller 1, drive steel pipe 2 worm drive forward, through surperficial preheating device, be preheated to 10 ℃-25 ℃ of environment dew-point temperatures; Through blast cleaner for outer surface of steel pipe 3, the shot of blast cleaner for outer surface of steel pipe 3 impacts the floating embroidery oxide skin of removing steel tube surface, and the derusting grade of the steel tube surface making reaches Svensk Standard Sa21/2.Steel pipe 2 is again through outer wall of steel pipe dust cleaning plant 4, and the cleaning brush of outer wall of steel pipe dust cleaning plant 4 is removed, the dust of absorption steel tube surface, to reduce phosphoric acid washing lotion consumption; Steel pipe 2 is again by phosphoric acid cleaning device 5 and phosphoric acid acid mist treatment device 6, with phosphoric acid cleaning device 5 and phosphoric acid acid mist treatment device 6, use acid-proof pump mixture phosphoric acid liquid to pass through nozzle and be vaporific ejection, nozzle pressure 0.5Mpa used, the mixed liquor 20 seconds steel pipe time of contact, mixeding liquid temperature maintains 40 ℃-48 ℃, PH≤1.0 of steel tube surface after cleaning.Phosphoric acid acid mist is through air-introduced machine (air draft ability: 8000m
3/ h) causing acid mist treatment tower, acid mist tangentially enters from processing tower body below air inlet, under the dynamic action of air-introduced machine, is full of rapidly air inlet section space, then by flow equalization section, rises to first order packing material absorbing section equably.On the surface of filler, (or alkalescence) material acid in gas phase and liquid phase neutral and alkali (or acid) material generation chemical reaction, reaction generates solubility acid (alkali) class material and flows into bottom hopper with absorption liquid.Acidity (or alkalescence) gas not absorbing completely continues to rise and enters first order spray section.In spray section, absorption liquid is from the ejection at a high speed of uniform nozzle, form countless fine mist, fully mix and contact with gas, continue to occur chemical reaction, then acid (alkalescence) gas rises to secondary packing section, spray section is carried out and the similar absorption process of the first order.The topmost of exhaust-gas treatment tower body is demist section, and absorption liquid droplet folded in gas is here eliminated, and the square opening from tower of pure air is after treatment discharged.The unnecessary acid solution that hopper waste liquid and phosphoric acid cleaning device spray is back to neutralization pond, after alkali lye is neutralized to PH=7, enter sewage treatment plant carry out after-treatment up to standard after discharge.Phosphoric acid cleaning device arranges three groups of shower nozzles, and vertically downward, shower nozzle adopts acidproof material to nozzle, and shower nozzle distance steel tube wall is 200mm, 60 ° of shower nozzle angle of scatterings, and steel pipe transmission pitch is 200mm, three groups of sprinkler spacings are respectively 220mm.Phosphoric acid washes into and in rear 2S, carries out high pressure water washing.High-pressure washing device 7 adopts high pressure cleaning pump (Q=35L/min, P=400bar), by pressure, is 8 Mpa deionized waters (electrical conductivity≤20 μ s/cm, hardness 200*10
-6mg/l) through cleaning shower nozzle, be jet-like cleaning steel tube surface, deionized water consumption 1L/ ㎡, deionized water temperature maintains more than 25 ℃, after cleaning, measures steel tube surface PH>6.0.Four groups of shower nozzles are set in high-pressure washing device 7, and vertically downward, shower nozzle distance steel tube wall is 150mm to nozzle, 30 ° of shower nozzle angle of scatterings, and steel pipe transmission pitch is 200mm, four groups of sprinkler spacings are respectively 70mm.Steel pipe after washing adopts heating, drying device to dry steel tube surface moisture, 280 ℃ of the highest leaving air temps of heat power supply device, maximum quantity of wind 22m in 3 seconds
3/ min, blast 2.3KPa.After drying, steel pipe is lifted and is placed on verifying bench 9 through lower pipe device, and detecting steel tube surface dust degree grade is 1 grade or following, and steel tube surface salt content is less than 15mg/ ㎡; Steel pipe 2 is sent to chromating device 10 through conveying roller spiral, and chromating device 10 use acid-proof pumps (Q=20L/min, H=15m) are using deionized water (electrical conductivity≤20 μ s/cm, hardness 200*10
-6mg/l) the chromating liquid of mixture (10% volume ratio) is the vaporific rotating steel tube surface that is sprayed at through nozzle, and the even blade coating of elastic wear-resisting scraper plate that is 300mm with width by passivating solution is in steel tube surface, 20 ℃ of chromating liquid temps, steel tube surface chromate amount is 0.3g/ ㎡, chromium/silicon/zinc complex oxidated layer thickness 0.2 μ the m forming in steel tube surface, chromating device backflow waste liquid is processed through special liquid waste treating apparatus.After completing passivation, steel pipe continues after heater 11 heats, to enter steel pipe external coating application system 12 by transmission.Chromating device arranges three groups of shower nozzles, and vertically downward, shower nozzle adopts acidproof material to nozzle, and shower nozzle distance steel tube wall is 200mm, 60 ° of shower nozzle angle of scatterings, and steel pipe transmission pitch is 200mm, three groups of sprinkler spacings are respectively 220mm.
Claims (4)
1. a steel tube surface coating applies pretreating device, mainly comprise conveying roller (1), steel pipe (2), blast cleaner for outer surface of steel pipe (3), outer wall of steel pipe dust cleaning plant (4), phosphoric acid cleaning device (5), phosphoric acid acid mist treatment device (6), high-pressure washing device (7), hot-air drying unit (8), verifying bench (9), chromating device (10), heater (11) and steel pipe external coating application system (12), it is characterized in that driving steel pipe (2) worm drive forward by delivery roller (1), through blast cleaner for outer surface of steel pipe (3), shot on blast cleaner for outer surface of steel pipe (3) impacts the floating embroidery oxide skin of removing steel tube surface, steel pipe (2) is again through outer wall of steel pipe dust cleaning plant (4), and the cleaning brush on outer wall of steel pipe dust cleaning plant (4) is removed, the dust of absorption steel tube surface, steel pipe (2) is again by phosphoric acid cleaning device (5) and phosphoric acid acid mist treatment device (6), and phosphoric acid cleaning device (5) and phosphoric acid acid mist treatment device (6) are vaporific ejection by mixture phosphoric acid liquid by nozzle, are sprayed on steel tube surface, then adopt high pressure water cleaning device (7), steel pipe (2) is carried out to high pressure water washing, steel tube surface moisture after steel pipe (2) after washing adopts heating, drying device to washing is dried, after drying, steel pipe (2) is lifted and is placed on verifying bench (9) above through lower pipe device, detects steel tube surface dust degree grade, steel pipe (2) is sent to chromating device (10) through conveying roller spiral, chromating device (10) is the vaporific rotating steel tube surface that is sprayed at by the chromating liquid of mixture through special nozzle, and by passivating solution with elastic wear-resisting scraper plate even blade coating in steel tube surface, complete passivation after steel pipe (2) continue after heater (11) heats, to enter steel pipe external coating application system (12) by transmission.
2. a kind of steel tube surface coating applies pretreating device according to claim 1, it is characterized in that phosphoric acid cleaning device (5) arranges three groups of shower nozzles, and vertically downward, shower nozzle distance steel tube wall is 200mm to nozzle, 60 ° of shower nozzle angle of scatterings, and three groups of sprinkler spacings are respectively 220mm.
3. a kind of steel tube surface coating applies pretreating device according to claim 1, it is characterized in that, in high-pressure washing device (7), four groups of shower nozzles are set, vertically downward, shower nozzle distance steel tube wall is 150mm to nozzle, 30 ° of shower nozzle angle of scatterings, four groups of sprinkler spacings are respectively 70mm.
4. a kind of steel tube surface coating applies pretreating device according to claim 1, it is characterized in that chromating device (10) arranges three groups of shower nozzles, nozzle vertically downward, shower nozzle adopts acidproof material, shower nozzle distance steel tube wall is 200mm, 60 ° of shower nozzle angle of scatterings, three groups of sprinkler spacings are respectively 220mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320730489.9U CN203565305U (en) | 2013-11-19 | 2013-11-19 | Processor for steel pipe surface coating before coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320730489.9U CN203565305U (en) | 2013-11-19 | 2013-11-19 | Processor for steel pipe surface coating before coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203565305U true CN203565305U (en) | 2014-04-30 |
Family
ID=50533069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320730489.9U Expired - Lifetime CN203565305U (en) | 2013-11-19 | 2013-11-19 | Processor for steel pipe surface coating before coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203565305U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120422A (en) * | 2014-07-29 | 2014-10-29 | 德州华奕包装制品有限公司 | Double-faced decontaminating and phosphating integrated machine for thin plate |
| CN107287607A (en) * | 2017-07-13 | 2017-10-24 | 海隆管道工程技术服务有限公司 | Pickling processes device and processing method before steel pipe epoxy powder spray |
| CN109701798A (en) * | 2018-12-29 | 2019-05-03 | 晋江市钫淦新材料科技有限公司 | A kind of spraying equipment of heating steel billet front surface protective agent for surface treatment |
| CN112024337A (en) * | 2020-08-03 | 2020-12-04 | 荆大（荆州）汽车配件有限公司 | Process for coating epoxy resin on surface of galvanized pipe |
-
2013
- 2013-11-19 CN CN201320730489.9U patent/CN203565305U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120422A (en) * | 2014-07-29 | 2014-10-29 | 德州华奕包装制品有限公司 | Double-faced decontaminating and phosphating integrated machine for thin plate |
| CN107287607A (en) * | 2017-07-13 | 2017-10-24 | 海隆管道工程技术服务有限公司 | Pickling processes device and processing method before steel pipe epoxy powder spray |
| CN107287607B (en) * | 2017-07-13 | 2019-12-27 | 海隆管道工程技术服务有限公司 | Pickling treatment device and method for steel pipe before epoxy powder spraying |
| CN109701798A (en) * | 2018-12-29 | 2019-05-03 | 晋江市钫淦新材料科技有限公司 | A kind of spraying equipment of heating steel billet front surface protective agent for surface treatment |
| CN113843087A (en) * | 2018-12-29 | 2021-12-28 | 晋江市钫淦新材料科技有限公司 | Spraying equipment for surface protection treatment agent before billet heating |
| CN112024337A (en) * | 2020-08-03 | 2020-12-04 | 荆大（荆州）汽车配件有限公司 | Process for coating epoxy resin on surface of galvanized pipe |
| CN112024337B (en) * | 2020-08-03 | 2022-05-24 | 荆大（荆州）汽车配件有限公司 | Process for coating epoxy resin on surface of galvanized pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203565305U (en) | Processor for steel pipe surface coating before coating | |
| CN104775129B (en) | A kind of quick acid dip pickle and method of cold-strip steel | |
| CN101603107B (en) | System for removing corrosive substances in coal gas obtained by dry dedusting of blast furnace and process thereof | |
| CN103952664B (en) | A kind of diamond-like carbon film-coating surface of the work pretreating process | |
| CN101823065A (en) | Device for descaling and derusting for pipeline and coating to form anti-corrosion coat and application method | |
| CN101423947A (en) | Surface treating method of stainless steel shell | |
| CN108212921A (en) | Cleaning device | |
| CN207872655U (en) | A kind of large-scale nut surface clean drying integral machine with metal coating | |
| CN206496523U (en) | It is a kind of can automatic desludging Hot water units | |
| CN202808953U (en) | Steel pipe surface acid-washing treating device | |
| CN109383051A (en) | A kind of continuously collinearly formula spraying winding prefabricated direct-buried thermal insulation pipe production line and its application | |
| CN108187993A (en) | Composite anti-corrosive coating process based on stainless steel | |
| CN110639896B (en) | Method for cleaning surface of steel pipe before corrosion prevention | |
| CN103361664A (en) | Cleaning method of carbon steel pipeline and cleaning agents | |
| CN106435535A (en) | Online repairing platform for high temperature plating solution coating type chemical plating | |
| CN1209502C (en) | Steel pipe acid pickling process | |
| CN201082421Y (en) | Ultrasonic cleaning tank | |
| CN207887572U (en) | A kind of efficient mechanical equipment cleaning device | |
| CN216574460U (en) | Surface treatment equipment for battery steel shell | |
| CN210729096U (en) | Pickling waste gas recovery processing device | |
| CN204080106U (en) | A kind of equipment for pipe end cleaning spray phosphatization | |
| CN106191885B (en) | The processing method of vanadium production equipment surface scale | |
| CN107154339A (en) | A kind of method and device of utilization ozone clean substrate | |
| CN209238352U (en) | A kind of electrostatic spraying pick pretreating device | |
| CN102978597A (en) | Spraying type comprehensive phosphate treating agent for cold-rolled sheet workpiece spraying coating and preparation method of spraying type comprehensive phosphate treating agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |