CN1341492A - Powder coating process for internal surface of gas pressure container and its equipment - Google Patents
Powder coating process for internal surface of gas pressure container and its equipment Download PDFInfo
- Publication number
- CN1341492A CN1341492A CN 00122965 CN00122965A CN1341492A CN 1341492 A CN1341492 A CN 1341492A CN 00122965 CN00122965 CN 00122965 CN 00122965 A CN00122965 A CN 00122965A CN 1341492 A CN1341492 A CN 1341492A
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- China
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- powder
- steel cylinder
- coating
- spray
- bottle
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- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000010410 dusting Methods 0.000 claims description 5
- 238000013519 translation Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 238000004381 surface treatment Methods 0.000 abstract description 3
- 239000011247 coating layer Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- 230000008901 benefit Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
The present invention belongs to a metal surface treatment technology, formed from two portions of surface coating process and equipment, its equipment contains moving mechanism, rotating mechanism, powder-feeding power-spraying mechanism and control power supply. The steel cylinder can be placed on the equipment and uniformly rotated and horizontally moved, then the power-spraying mechanism and powder feeding mechanism can be used to spray the powder into the container to make surface coating. Before spray-coating the container must be pretreated, then is undergone the process of spray-coating plasticization treatment. Said invention is simple, and easy to implement, can obtain thicker and uniform coating layer on the inner surface of container.
Description
The present invention relates to a kind of metal surface treatment technology, be fit to the treating apparatus and the technology of pressure vessel inner surface.
At present, mostly adopt the method for electrostatic spraying for Treatment of Metal Surface, realize spraying in an electrostatic field, advantage is that device is simpler, easy to operation, can realize fully for less demanding product, but its deficiency is because of the frequent appearance of non-uniform electric is coated with partially that some extraordinary pressure vessel treating apparatus adopts dip-coating, and cause channel easily, make coating inhomogeneous, and need repeatedly to apply just can reach required thickness, cause very big waste for raw material and technology.
For solving the deficiency of above process, purpose of the present invention provides a kind of powder coating process for internal surface and device of gas pressure vessel, utilize this device and process to make steel cylinder have anti-chemical mediator burn into hydrophobic to reach, protect pure and mild maintenance gas ingredients, gas concentration, the purpose that remains unchanged for a long period of time.
The surface treatment that technical solution of the present invention is achieved in that gas pressure vessel is made up of process and device two parts, and wherein process is:
Inner surface of container coating process flow process is as follows:
Baking burning-inner surface sandblast-clean-dry up-spray-plastify-check-quench-clean-dry up-check
Wherein the steel cylinder inunction process is with 16 order emergies the steel cylinder inner surface to be carried out blasting treatment by steel cylinder is put in after the oiling that realized in 10～12 hours is toasted in 260 ℃ of baking oven inherences, remove the rust and the oxide of inwall, blow out dust with compressed air again, clean inwall with absolute ethyl alcohol, at last with the dried inwall of wind
Spraying process: bottle is placed on the device operates by following parameter:
Rotary speed 700rph
Move horizontally speed 4mm/s
Gas pressure 0.2MPa
Spray time 100～300s
Spraying number of times 6～12 times
Powder size-120 order
Earlier steel cylinder is fixed on the bottle support during coating, regulate spray body, make podwer gun put into container and be fit to the position, start power-supply controller of electric then, the bottle rotating mechanism is rotated, and horizontal mobile mechanism moves reciprocatingly, and regulates powder feeder and makes gas flow reach required value, reach and want to stop to apply behind the seeking time, put into stove then and plastify.
Coating unit:
Coating unit is by bottle rotational translation mechanism, powder feeding, the mechanism of dusting, control power supply three parts are formed, wherein below the bottle travel mechanism horizontal motor is housed, motor shaft connects horizontal screw lead, with the leading screw interlock under the top shelf, the top shelf side is fixed with electric rotating machine and decelerator, the decelerator output and the support other end be workpiece to be machined steel cylinder (as shown in Figure 1) fixedly, the powder feeding mechanism of dusting is a casing, top is equipped with and is connect air pressure switch, through flowmeter and below the powder feeder input join, powder feeder output termination spray gun, spray gun stretches in the processed steel cylinder.On casing top power-supply controller of electric is housed simultaneously, supplies with whole device and use.
Advantage of the present invention: the gas pressure vessel coating unit is simple, process is implemented easily, adopting powder spraying method benefit is both to have kept the electrostatic powder coating once can be than the advantage of thick coating, the mode that on spray equipment, adopts bottle to rotate automatically and move horizontally again, thus can realize the process that uniformly spray at the inner surface of container.
Powder coating process for internal surface of gas pressure container of the present invention and device are provided by following examples.
Fig. 1 is apparatus of the present invention structure principle chart.
Its structure as shown in drawings, 1 is bottle rotational translation mechanism, 2 are powder feeding, the mechanism of dusting, 3 is the translation mechanism motor, and 4 is horizontal screw lead, and support 7 is housed above, support side 5 is a motor, and 6 is decelerator, and 8 is processed steel cylinder, fixedly steel cylinder bracket can move horizontally above, and steel cylinder can rotate around the axis again, and casing top, side 9 is the compressed air interface switch, 10 is flowmeter, can regulate compressed air require, and 11 is powder feeder, 12 is duster, and 13 are the control power supply, and whole device is become one.
The embodiment of process:
Treatment process is example with the fluor resin coating.This treatment process adopts fluororesin powder as gas cylinder inside coating material, be characterized in that chemical-resistance is superior, mechanical strength is big, thermal coefficient of expansion is low, have hydrophobicity, liquid oxygen shock-sensitive degree is good, still keeps various reliable performances under 200 ℃ of high temperature and extremely low temperature.Fluororesin physics, mechanical performance such as table 1.
Table 1 fluororesin physics, mechanical performance
| Project | Index | Project | Index |
| The proportion thermal conductivity is than hotline expansion coefficient vitrification point fusing point | 2.14～2.17 0.184W/(m.K) 1.17×10 3J/(kg.K) 8.3～10.5×10 -5K -150～130℃ 265～278℃ | Decomposition starting temperature hot strength (MPa) percentage elongation Young's modulus impact strength (band breach) dielectric constant (10 6During Hz) | 400 ℃ 20.3～24.5 250～330% 343Mpa continuous 2.0～2.2 |
Provide the embodiment that utilizes the present invention that the gas cylinder coating on inner surface is handled below, the treatment process of this example is as follows:
7. coating key property
The coating on inner surface key property testing result that applies through coating process provided by the present invention is as follows:
The coating adhesion test result
| Sample number into spectrum | Coating layer thickness (μ m) | Temperature (℃) | Adhesive force (level) |
| ????1 | ????49 | Room temperature | ????1～2 |
| ????2 | ????51 | Room temperature | ????1～2 |
| ????3 | ????58 | Room temperature | ????1～2 |
| ????4 | ????52 | ????140 | ????1～2 |
| ????5 | ????56 | ????140 | ????1～2 |
| ????6 | ????58 | ????-196 | ????1～2 |
| ????7 | ????58 | ????-196 | ????1～2 |
| ????8 | ????54 | ????-196 | ????1～2 |
Extraordinary gas cylinder undercoating uniformity measurement result
| Sequence number | Thickness (μ m) | Adhesive force |
| ????1 | ????58????58????60????54????56????52 ????52????58????56????54????58????54 ????54????58????54????52????58????54 | 2 grades |
| ????????????????????55.6 | ||
| ????2 | ????54????53????55????53????54????55 ????55????54????53????53????54????55 ????54????53????55????53????54????55 | 2 grades |
| ????????????????????54.0 | ||
| ????3 | ????54????55????53????55????53????54 ????56????55????55????54????53????55 ????56????55????54????56????55????55 | 2 grades |
| ????????????????????54.6 | ||
| ????4 | ????51????52????51????52????53????50 ????50????52????51????50????51????52 ????51????52????50????52????52????51 | 2 grades |
| ????????????????????51.3 | ||
| ????5 | ????51????54????54????51????53????52 ????52????53????52????52????53????55 ????51????53????52????52????53????52 | 2 grades |
| ????????????????????52.5 | ||
| ????6 | ????53????53????50????51????52????51 ????50????52????50????52????53????51 ????51????52????50????50????52????50 | 2 grades |
| ????????????????????51.3 |
Claims (2)
1. powder coating process for internal surface of gas pressure container is characterized in that this device coating on inner surface technological process is as follows:
Baking burning-inner surface sandblast-clean-dry up-spray-plastify-check-quench-clean-dry up-check.
Wherein the steel cylinder inunction process was realized by steel cylinder being put in the inherent 260 ℃ of bakings of baking oven in 10～12 hours.With 16 order emergies the steel cylinder inner surface is carried out blasting treatment after the oiling, remove the rust and the oxide of inwall, blow out dust with compressed air again, clean inwall with absolute ethyl alcohol, at last with the dried inwall of wind.
Spraying process: bottle is placed on the device operates by following parameter:
Rotary speed 700rph
Move horizontally speed 4mm/s
Gas pressure 0.2MPa
Spray time 100～300s
Spraying number of times 6～12 times
Powder size-120 order
Earlier steel cylinder is fixed on the bottle support during coating, regulate spray body, make podwer gun put into container and be fit to the position, start power-supply controller of electric then, the bottle rotating mechanism is rotated, and horizontal mobile mechanism moves reciprocatingly, and regulates powder feeder and makes gas flow reach required value, reach and want to stop to apply behind the seeking time, put into stove then and plastify.
2. internal surface of gas pressure container powder coating device, it is characterized in that this device is by bottle rotational translation mechanism (1), powder feeding, the mechanism (2) of dusting, control power supply (3) three parts are formed, horizontal motor (3) wherein is housed below the bottle travel mechanism, motor shaft connects horizontal screw lead (4), with the leading screw interlock under the top shelf, top shelf (7) side is fixed with electric rotating machine (5) and decelerator (6), the decelerator output and the support other end be workpiece to be machined steel cylinder (8) fixedly, powder feeding, the mechanism (2) of dusting is a casing, top is equipped with and is connect air pressure switch (9), through flowmeter (10) with below the powder feeder input join, powder feeder (11) output termination spray gun (12), spray gun stretches in the processed steel cylinder.Power-supply controller of electric (13) is housed simultaneously on casing top, supplies with whole device and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001229656A CN1142035C (en) | 2000-09-06 | 2000-09-06 | Powder coating process for internal surface of gas pressure container and its equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001229656A CN1142035C (en) | 2000-09-06 | 2000-09-06 | Powder coating process for internal surface of gas pressure container and its equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1341492A true CN1341492A (en) | 2002-03-27 |
| CN1142035C CN1142035C (en) | 2004-03-17 |
Family
ID=4589454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001229656A Expired - Fee Related CN1142035C (en) | 2000-09-06 | 2000-09-06 | Powder coating process for internal surface of gas pressure container and its equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1142035C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323911C (en) * | 2003-06-13 | 2007-07-04 | 中国科学院金属研究所 | Processing method for high purity and corrosive gas packaging container |
| CN101767080B (en) * | 2008-12-26 | 2012-10-24 | 中国科学院金属研究所 | Coating preparing method and device by mixing metal and plastic powders |
| CN102966842A (en) * | 2012-11-23 | 2013-03-13 | 中材科技（苏州）有限公司 | Gas cylinder for vehicles with surface coatings and preparation method thereof |
| CN103276392A (en) * | 2013-06-03 | 2013-09-04 | 哈尔滨科能熔敷科技有限公司 | Cladding device for water-cooling wall of circulating fluidized bed boiler |
| CN104190602A (en) * | 2014-08-29 | 2014-12-10 | 杭州余杭獐山钢瓶有限公司 | Technology for vacuum magnetic field collaborative electrostatic spraying of internal surface of steel cylinder |
| CN104233163A (en) * | 2014-09-29 | 2014-12-24 | 中国石油集团工程设计有限责任公司 | Metal anti-corrosion coating for pressure container with high salt content and wet hydrogen sulfide working condition and preparation method of metal anti-corrosion coating |
| CN112760459A (en) * | 2020-12-30 | 2021-05-07 | 宜兴市鼎锋模具制造有限公司 | High-speed steel tool and tungsten adding method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357565B (en) * | 2012-03-28 | 2015-12-16 | 深圳市罗杰科技有限公司 | A kind of interior spraying coating process of two ends reducing steel cylinder |
-
2000
- 2000-09-06 CN CNB001229656A patent/CN1142035C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323911C (en) * | 2003-06-13 | 2007-07-04 | 中国科学院金属研究所 | Processing method for high purity and corrosive gas packaging container |
| CN101767080B (en) * | 2008-12-26 | 2012-10-24 | 中国科学院金属研究所 | Coating preparing method and device by mixing metal and plastic powders |
| CN102966842A (en) * | 2012-11-23 | 2013-03-13 | 中材科技（苏州）有限公司 | Gas cylinder for vehicles with surface coatings and preparation method thereof |
| CN102966842B (en) * | 2012-11-23 | 2015-03-25 | 中材科技（苏州）有限公司 | Gas cylinder for vehicles with surface coatings and preparation method thereof |
| CN103276392A (en) * | 2013-06-03 | 2013-09-04 | 哈尔滨科能熔敷科技有限公司 | Cladding device for water-cooling wall of circulating fluidized bed boiler |
| CN103276392B (en) * | 2013-06-03 | 2015-06-24 | 哈尔滨科能熔敷科技有限公司 | Cladding device for water-cooling wall of circulating fluidized bed boiler |
| CN104190602A (en) * | 2014-08-29 | 2014-12-10 | 杭州余杭獐山钢瓶有限公司 | Technology for vacuum magnetic field collaborative electrostatic spraying of internal surface of steel cylinder |
| CN104190602B (en) * | 2014-08-29 | 2015-12-02 | 杭州余杭獐山钢瓶有限公司 | A kind of steel cylinder inner surface vacuum magnetic field works in coordination with the technique of electrostatic spraying |
| CN104233163A (en) * | 2014-09-29 | 2014-12-24 | 中国石油集团工程设计有限责任公司 | Metal anti-corrosion coating for pressure container with high salt content and wet hydrogen sulfide working condition and preparation method of metal anti-corrosion coating |
| CN104233163B (en) * | 2014-09-29 | 2016-08-24 | 中国石油集团工程设计有限责任公司 | A kind of high saliferous and Wet H2S environment working condition pressure container anti-corrosive metal coating and preparation method thereof |
| CN112760459A (en) * | 2020-12-30 | 2021-05-07 | 宜兴市鼎锋模具制造有限公司 | High-speed steel tool and tungsten adding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1142035C (en) | 2004-03-17 |
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