CN103357565A - Internal spraying process for steel cylinder with two necked ends - Google Patents
Internal spraying process for steel cylinder with two necked ends Download PDFInfo
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- CN103357565A CN103357565A CN2012100859285A CN201210085928A CN103357565A CN 103357565 A CN103357565 A CN 103357565A CN 2012100859285 A CN2012100859285 A CN 2012100859285A CN 201210085928 A CN201210085928 A CN 201210085928A CN 103357565 A CN103357565 A CN 103357565A
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Abstract
Disclosed is an internal spraying process for a steel cylinder with two necked ends. The internal spraying process includes the steps: alkali washing for deoiling, water washing, drying before spraying, sand blasting (or etching-washing with hot water), washing with alcohol, blow-drying, preparing before spraying, spraying, baking for surface drying, sintering, colling and the like; preparation work before spraying includes parameter setting and hardware preparing, spraying is an automatized spraying process, and in the process of spraying, an extension-rod spraying gun is driven by a driving device to move at an constant speed. By the internal spraying process, a uniformly-dense inert coating can be formed on the inner wall of the steel cylinder and does not cause adsorption and chemical reaction with gas and liquid contained in the steel cylinder, so that any changes of constituents of the gas and the liquid are ensured not to be caused; by combining the process with special equipment, spraying of small-sized sampling steel cylinders can be completed.
Description
Technical field
The present invention relates to the interior spraying coating process of cylindrical container, in particular, the interior spraying coating process that relates to a kind of two ends reducing sampling steel cylinder for splendid attire (liquefaction) oil gas, (liquefaction) natural gas, calibrating gas and various industrial high-purity liquids and gases etc.
Background technology
In the production process of oil, chemical industry and other industries or the accumulating stage of raw material and finished product, need constantly to gather wherein representative sample and analyse and compare.Representative for the gaseous sample that guarantees regularly to collect, and be used for preserving the container of sample, not only withstand voltage, be not corroded, also to guarantee the stable characteristic of sample component in the container.Usually adopt at present reducing steel cylinder in two ends to preserve gaseous sample.Because this type of steel cylinder is the two ends reducing, large to steel cylinder inner surface treatment difficulty, so in most cases be directly to adopt without the naked bottle of inner surface treatment to preserve sample gas, this mode has following deficiency: 1) inner wall of steel cylinder exists certain roughness and micropore, can optionally adsorb gas component in the bottle, because inner wall of steel cylinder there are differences the degree of absorption of the gas of different component, so gaseous sample ratio of component regular meeting in storage and transport process occurs to change, and makes gaseous sample lose representativeness micro-ly; 2) exposed inner wall of steel cylinder can with some gas component generation chemical reaction.In oil refining industry and Gas Industry, often to the gas sample of the sulfide that contains trace, this gas that contains trace sulfide, in petrochemical, easily and catalyst react or allow catalyst poisoning.Sulfide, minor amount of water easily and stainless steel inner wall of steel cylinder corrosion, the further contaminated samples of corrosion product.So, adopt directly this sample gas of splendid attire of naked bottle, easily cause the sample gas change of component, make sample gas not representative.
In order to address the above problem, usually adopt at present the mode to the inner wall of steel cylinder Passivation Treatment to make inner wall of steel cylinder generate the passivating film of one deck densification in the row.But; this mode still can not be dealt with problems fully; because still there is the situation that can adsorb some gas component in the steel cylinder through Passivation Treatment; and the passivating film of inner wall of steel cylinder is under certain condition (such as variations in temperature; media variations) thus can be activated again and lose passive state, do not had protective effect.
Although the product inner-wall spraying coating such as pair pipeline, bottle, tank have been arranged to reach the method for the purposes such as corrosion-resistant antipollution at present, but, to adopt manually-operated to spray mostly, so the quality of coating can change because of the variation of operating personnel, site condition.And be used for preserving the sampling steel cylinder of sample gas because its structure is the steel cylinder of two ends reducing mostly, and its outside dimension is less, and (internal diameter is not more than 60mm usually, more than the length 300mm), be not more than 60mm for internal diameter, the steel cylinder that length 300mm is above, one is difficult to use and manually finishes spraying, and its two traditional spraying method can't reach the needs of even and compactness and the coating layer thickness controllability of sampling steel cylinder inside coating.
Summary of the invention
The object of the present invention is to provide a kind of technique that adopts the materials such as Teflon or silane the sampling steel cylinder of two ends reducing to be carried out inner-wall spraying; this technique can be so that inner wall of steel cylinder forms Teflon or the silane inner wall protection coating of one deck even compact; and the coating that forms does not produce absorption to institute's filling gas and liquid; chemical reaction does not occur yet; guarantee that any change does not occur its component; and this technique can be finished the spray process to undersized sampling steel cylinder in conjunction with the equipment of special use.
The foregoing invention purpose can be realized by following technological means: a kind of interior spraying coating process of two ends reducing steel cylinder, comprise the front preparation-spraying of inner wall of steel cylinder pre-treatment-spraying-these five operations of spraying post processing-check, and it is characterized in that:
1) described inner wall of steel cylinder pretreatment procedure comprises six steps of oven dry-sandblast before alkali cleaning oil removing-washing-spraying (perhaps etching-hot water cleaning)-alcohol wash-dry up;
2) prepare to comprise running parameter setting and hardware preparation two parts content before the described spraying;
3) described spraying is the automatic spraying process;
4) described spraying post processing comprises baking surface drying-sintering-three steps of cooling.
Prepare to comprise following 6 steps before the above-mentioned spraying:
I) adjust extension bar spray gun axis, make spray gun axis and the dead in line of steel cylinder whirligig, then fixing spray gun;
Ii) adjust Pressure gauge, the control compressed air require carries out the running parameter setting;
Iii) be fixed on steel cylinder to be sprayed on the whirligig and heat steel cylinder;
Iv) hand shaken spray gun workbench makes the spray gun that fixes penetrate from one of them reducing of steel cylinder, advances along the steel cylinder axis, until nozzle just passes from the other end reducing of steel cylinder;
V) open switch activated spraying process on the cover behind the protective cover.
Vi) open the rotation of electric rotating machine switch drive whirligig, thereby drive the steel cylinder rotation.
After starting spraying process, spray gun is at the uniform velocity advanced.
Kind and the scope of described running parameter are as follows:
Spraying number of times: 3 ~ 8 times
Atomizing pressure: 2.8 ~ 5Kg/cm2
Paint can pressure: 1.3 ~ 2.0Kg/cm2
Switch pressure: 3 ~ 6Kg/cm2
Spray gun forward-reverse speed: 100 ~ 300mm/s
Steel cylinder rotary speed: 10 ~ 70rpm
Atomizing time delay: 3 ~ 5s
The spray gun direction of motion: along the axis back and forth movement
In order to reach optimum technique effect, the scope of described running parameter can be further defined to:
Spraying number of times: 3 ~ 8 times
Atomizing pressure: 3.8Kg/cm2
Paint can pressure: 1.3 ~ 2.0Kg/cm2
Switch pressure: 4Kg/cm2
Spray gun forward-reverse speed: 100 ~ 300mm/s
Steel cylinder rotary speed: 10 ~ 70rpm
Atomizing time delay: 3 ~ 5s
The spray gun direction of motion: along the axis back and forth movement.
The parameter area of baking surface drying is in the described spraying post-processing step:
Baking temperature: 110 ℃ ~ 130 ℃
Stoving time: 2 ~ 4 minutes.
The parameter area of sintering is in the described spraying post-processing step:
Sintering temperature: 400 ℃ ~ 450 ℃
Sintering time: 3 ~ 5 minutes.
The described type of cooling is for being placed on steel cylinder naturally cooling in the baking oven.
Usefulness of the present invention is: 1. reliability is high, use this technique and relevant apparatus to spray, can be formed uniformly in sampling steel cylinder inside the form compact and stable inert coatings of one deck, effectively stoped the steel cylinder metal inner surface to contact with institute's filling gas and the direct of liquid, any chemical reaction can not occur with institute's filling gas and liquid in coating itself yet, effectively keeps the stability of institute's filling gas and liquid; 2. undercoating is evenly smooth, coating layer thickness is controlled, by to the extension bar spray gun at atomizing pressure, gait of march, jet size, coating flow, spray gun comes and goes the control of number of times, and the spraying method of 360 ° of annular vertical spray guns of spray gun axis, the uniformity and the coating layer thickness that have solved spraying are difficult to control, and the two ends reducing partly is prone to the problems such as spraying dead angle; 3. the employing automation process has been eliminated the variability issues that hand spray brings, and makes coating quality reliability and repeatability obtain powerful guarantee, and greatly reduces cost of labor.
The specific embodiment
Specific embodiment one: in the present embodiment, at first pending steel cylinder is carried out the inner wall of steel cylinder pre-treatment, this procedure comprises following six treatment steps
Oven dry-sandblast before alkali cleaning oil removing-washing-spraying (perhaps etching-hot water cleans)-alcohol wash-dry up;
Next sprays front preparation, and preparation can be carried out in accordance with the following steps before the spraying:
I) adjust extension bar spray gun axis, make spray gun axis and the dead in line of steel cylinder whirligig, then fixing spray gun;
Ii) adjust Pressure gauge, the control compressed air require carries out the running parameter setting, and in the present embodiment, running parameter is set as:
Spraying number of times: 3 times
Atomizing pressure: 5Kg/cm2
Paint can pressure: 2.0Kg/cm2
Switch pressure: 5Kg/cm2
Spray gun forward-reverse speed: 100mm/s
Steel cylinder rotary speed: 10rpm
Atomizing time delay: 3s
The spray gun direction of motion: along the axis back and forth movement;
Iii) be fixed on steel cylinder to be sprayed on the whirligig and heat steel cylinder;
Iv) hand shaken spray gun workbench makes the spray gun that fixes penetrate from one of them reducing of steel cylinder, advances along the steel cylinder axis, until nozzle just passes from the other end reducing of steel cylinder;
V) open the rotation of electric rotating machine switch drive whirligig, thereby drive the steel cylinder rotation;
Vi) cover upper protective cover.
At last, close electric rotating machine after spraying is finished, treat that taking off steel cylinder after whirligig stops the rotation sprays post processing, the spraying post processing comprises baking surface drying-sintering-three steps of cooling.
The parameter area of baking surface drying is in the above-mentioned spraying post-processing step:
Baking temperature: 110 ℃
Stoving time: 4 minutes.
And the parameter area of sintering is in the spraying post-processing step:
Sintering temperature: 400 ℃
Sintering time: 5 minutes.
At last steel cylinder is placed on naturally cooling in the baking oven.
Specific embodiment two is that with the difference of specific embodiment one running parameter of spray gun is set as: spraying number of times: 8 times
Atomizing pressure: 2.8Kg/cm2
Paint can pressure: 1.3Kg/cm2
Switch pressure: 3Kg/cm2
Spray gun forward-reverse speed: 300mm/s
Steel cylinder rotary speed: 70rpm
Atomizing time delay: 5s
The spray gun direction of motion: along the axis back and forth movement
And the parameter area of baking surface drying is in the spraying post-processing step:
Baking temperature: 130 ℃
Stoving time: 4 minutes.
The parameter area of sintering is:
Sintering temperature: 450 ℃
Sintering time: 3 minutes.
Specific embodiment three is with the difference of above-mentioned two specific embodiments: spraying number of times: 3 ~ 8 times
Atomizing pressure: 3Kg/cm2
Paint can pressure: 1.5Kg/cm2
Switch pressure: 5Kg/cm2
Spray gun forward-reverse speed: 200mm/s
Steel cylinder rotary speed: 40rpm
Atomizing time delay: 4s
The spray gun direction of motion: along the axis back and forth movement
And the parameter area of baking surface drying is in the spraying post-processing step:
Baking temperature: 120 ℃
Stoving time: 3 minutes.
The parameter area of sintering is:
Sintering temperature: 430 ℃
Sintering time: 4 minutes.
Claims (8)
1. the interior spraying coating process of a two ends reducing steel cylinder comprises the front preparation-spraying of inner wall of steel cylinder pre-treatment-spraying-these five operations of spraying post processing-check, it is characterized in that:
1) described inner wall of steel cylinder pretreatment procedure comprises six steps of oven dry-sandblast before alkali cleaning oil removing-washing-spraying (perhaps etching-hot water cleaning)-alcohol wash-dry up;
2) prepare to comprise running parameter setting and hardware preparation two parts content before the described spraying;
3) described spraying is the automatic spraying process, and the extension bar spray gun is at the uniform velocity advanced under drive unit drives in the spraying process;
4) described spraying post processing comprises baking surface drying-sintering-three steps of cooling.
2. the interior spraying coating process of reducing steel cylinder in two ends as claimed in claim 1 is characterized in that: prepare to comprise following 6 steps before the described spraying:
I) adjust extension bar spray gun axis, make spray gun axis and the dead in line of steel cylinder whirligig, then fixing spray gun;
Ii) adjust Pressure gauge, the control compressed air require carries out the running parameter setting;
Iii) be fixed on steel cylinder to be sprayed on the whirligig and heat steel cylinder;
Iv) hand shaken spray gun workbench makes the extension bar spray gun that fixes penetrate from one of them reducing of steel cylinder, advances along the steel cylinder axis, until nozzle passes from the other end reducing of steel cylinder;
V) open switch activated spraying process on the cover behind the protective cover;
Vi) open the rotation of electric rotating machine switch drive whirligig, thereby drive the steel cylinder rotation.
3. the interior spraying coating process of reducing steel cylinder in two ends as claimed in claim 2, it is characterized in that: after starting spraying process, spray gun returns again an other end that at the uniform velocity advances to the steel cylinder reducing after at the uniform velocity retreating into steel cylinder reducing one end, and so forth, until finish the spraying number of times that sets in advance.
4. the interior spraying coating process of reducing steel cylinder in two ends as claimed in claim 3, it is characterized in that: kind and the scope of described running parameter are as follows:
Spraying number of times: 3 ~ 8 times
Atomizing pressure: 2.8 ~ 5Kg/cm2
Paint can pressure: 1.3 ~ 2.0Kg/cm2
Switch pressure: 3 ~ 6Kg/cm2
Spray gun forward-reverse speed: 100 ~ 300mm/s
Steel cylinder rotary speed: 10 ~ 70rpm
Atomizing time delay: 3 ~ 5s
The spray gun direction of motion: along the axis back and forth movement.
5. the interior spraying coating process of reducing steel cylinder in two ends as claimed in claim 4, it is characterized in that: the scope of described running parameter can be further defined to:
Spraying number of times: 3 ~ 8 times
Atomizing pressure: 3.8Kg/cm2
Paint can pressure: 1.3 ~ 2.0Kg/cm2
Switch pressure: 4Kg/cm2
Spray gun forward-reverse speed: 100 ~ 300mm/s
Steel cylinder rotary speed: 10 ~ 70rpm
Atomizing time delay: 3 ~ 5s
The spray gun direction of motion: along the axis back and forth movement.
6. such as the interior spraying coating process of each described two ends reducing steel cylinder of claim 1 to 5, it is characterized in that: the parameter area of baking surface drying is in the described spraying post-processing step:
Baking temperature: 110 ℃ ~ 130 ℃
Stoving time: 2 ~ 4 minutes.
7. the interior spraying coating process of reducing steel cylinder in two ends as claimed in claim 6, it is characterized in that: the parameter area of sintering is in the described spraying post-processing step:
Sintering temperature: 400 ℃ ~ 450 ℃
Sintering time: 3 ~ 5 minutes.
8. the interior spraying coating process of reducing steel cylinder in two ends as claimed in claim 7 is characterized in that: the described type of cooling is cooled off naturally for steel cylinder is placed in the baking oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210085928.5A CN103357565B (en) | 2012-03-28 | 2012-03-28 | A kind of interior spraying coating process of two ends reducing steel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210085928.5A CN103357565B (en) | 2012-03-28 | 2012-03-28 | A kind of interior spraying coating process of two ends reducing steel cylinder |
Publications (2)
| Publication Number | Publication Date |
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| CN103357565A true CN103357565A (en) | 2013-10-23 |
| CN103357565B CN103357565B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210085928.5A Expired - Fee Related CN103357565B (en) | 2012-03-28 | 2012-03-28 | A kind of interior spraying coating process of two ends reducing steel cylinder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920628A (en) * | 2014-04-28 | 2014-07-16 | 上海宝钢包装股份有限公司 | Manufacturing technology of two-piece-type steel high-performance zip-top cans |
| CN103949378A (en) * | 2014-04-02 | 2014-07-30 | 安徽瑞田机械有限公司 | Spraying and processing apparatus and method for spraying and processing surface in gas tank |
| CN104128294A (en) * | 2014-06-27 | 2014-11-05 | 鲁西新能源装备集团有限公司 | Inner spraying device and process of large volume seamless steel gas cylinder |
| CN104525454A (en) * | 2014-12-22 | 2015-04-22 | 青岛锻艺金属有限公司 | Spraying technology |
| CN108723235A (en) * | 2018-04-29 | 2018-11-02 | 温州博德科技有限公司 | The idiosome moulding process of aluminum bottle |
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Patent Citations (6)
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| CN1163801A (en) * | 1996-04-29 | 1997-11-05 | 成都市成华区民生电器厂 | Technique for treating inner surface of high-pressure cylinder for natural gas automobile |
| US20010054654A1 (en) * | 2000-06-21 | 2001-12-27 | Suzuki Motor Corporation | Thermal spraying system for cylinder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949378A (en) * | 2014-04-02 | 2014-07-30 | 安徽瑞田机械有限公司 | Spraying and processing apparatus and method for spraying and processing surface in gas tank |
| CN103920628A (en) * | 2014-04-28 | 2014-07-16 | 上海宝钢包装股份有限公司 | Manufacturing technology of two-piece-type steel high-performance zip-top cans |
| CN103920628B (en) * | 2014-04-28 | 2015-09-30 | 上海宝钢包装股份有限公司 | A kind of production technology of high-performance steel two-sheet zip-top can |
| CN104128294A (en) * | 2014-06-27 | 2014-11-05 | 鲁西新能源装备集团有限公司 | Inner spraying device and process of large volume seamless steel gas cylinder |
| CN104128294B (en) * | 2014-06-27 | 2015-10-21 | 鲁西新能源装备集团有限公司 | Large volume seamless steel gas cylinder inner spray coating device and technique thereof |
| CN104525454A (en) * | 2014-12-22 | 2015-04-22 | 青岛锻艺金属有限公司 | Spraying technology |
| CN108723235A (en) * | 2018-04-29 | 2018-11-02 | 温州博德科技有限公司 | The idiosome moulding process of aluminum bottle |
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| Publication number | Publication date |
|---|---|
| CN103357565B (en) | 2015-12-16 |
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Address after: 518000, Shenzhen, Guangdong province Baoan District Shiyan Street on the north side of loose white road Founder Technology Industrial Park, workshop B (room 7-201) Applicant after: Shenzhen LJ Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Yuen Road Xili Industrial Zone 5 No. 504 Applicant before: Shenzhen LJ Technology Co., Ltd. |
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