CN103894323A - Repairing needle for teflon coating and repairing method - Google Patents
Repairing needle for teflon coating and repairing method Download PDFInfo
- Publication number
- CN103894323A CN103894323A CN201410135253.XA CN201410135253A CN103894323A CN 103894323 A CN103894323 A CN 103894323A CN 201410135253 A CN201410135253 A CN 201410135253A CN 103894323 A CN103894323 A CN 103894323A
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- Prior art keywords
- powder
- repairing
- spoon
- powder spoon
- pin
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- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 239000004809 Teflon Substances 0.000 title claims abstract description 45
- 229920006362 Teflon® Polymers 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 125
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 229920009441 perflouroethylene propylene Polymers 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a repairing needle for a teflon coating. The repairing needle comprises a needle rod for forming a repairing needle main body, wherein one end of the needle rod forms a sharp needle tip while a powder spoon is arranged at the other end of the needle rod. A coating repairing method comprises the following steps: ejecting impurities at a leaking point by using the needle tip; heating the powder spoon by a hot air gun to a smelting point of powder; scooping out one spoon of powder by using the powder spoon; continuously and simultaneously heating the powder spoon and the position of the leaking point by using the hot air gun so that the powder in the powder spoon keeps at a molten state; pouring the powder at the molten state onto the leaking point of the coating; and flattening the powder by using the arc-shaped surface on the outer side of the powder spoon so that the powder covers the leaking point. The utilization and repairing method of the repairing needle is relatively simple and a repairing process is convenient to control; the yield is high after the leaking point is repaired.
Description
Technical field
The present invention relates to the technical field of paint spraying, is a kind of repairing pin and method for repairing and mending for teflon coatings specifically.
Background technology
Teflon coating is the fluorine coating take polytetrafluoroethylene (PTFE) as matrix resin, and English name is Teflon, is conventionally referred to as again Teflon, the rich dragon of iron, Teflon, teflon etc. (being all the transliteration of Teflon).Teflon coating is a kind of unique high-performance coating, combine heat resistance, chemical inertness and excellent insulation stability and low frictional properties, have the comprehensive advantage that other coating cannot contend with, the flexibility of its application makes it can be used for nearly all shape and big or small product.
Teflon is divided into PTFE, FEP, several fundamental types of PFA, ETFE: PTFE(polytetrafluoroethylene (PTFE)) non-viscous paint can be 260 ℃ of uses continuously, there is maximum operation (service) temperature 290-300 ℃, extremely low coefficient of friction, good wearability and fabulous chemical stability.FEP(fluorinated ethylene propylene copolymer) non-viscous paint when baking melt-flow form nonporous film, there is remarkable chemical stability, fabulous sticky characteristic, maximum operation (service) temperature is 200 ℃.PFA(crosses fluoroalkyl compound) non-viscous paint the same with FEP when baking melt-flow form nonporous film.The advantage of PFA is to have 260 ℃ of higher continuous serviceability temperatures, and the strong and unyielding degree that tool is stronger is particularly suitable for using antiseized under hot conditions and chemical resistance use field.ETFE is the copolymer of a kind of ethene and tetrafluoroethene, and this resin is the most tough and tensile fluoropolymer polymer, can form the coating that a layer height is durable, has remarkable chemical resistance, and can continuous operation at 150 ℃.
After Teflon application, there is following characteristic: 1, viscosity not: nearly all material is not bonding with Teflon film.Very thin film also demonstrates well not adhesion property.2, heat resistance: Teflon film has good heat-resisting and low temperature tolerance characteristics.Short time can be high temperature resistant to 300 ℃, generally between 240 ℃ ~ 260 ℃, can use continuously, has significant heat endurance, and it can work and not embrittlement under cryogenic temperature, does not at high temperature melt.3, sliding: Teflon film has lower coefficient of friction.When load is slided, coefficient of friction changes, but numerical value is only between 0.05-0.15.4, moisture resistance: Teflon film without water stained on its surface and oil, when production operation, be also difficult for being stained with solution, as be stained with a small amount of dirt, simple wiping can be removed.Downtime is short, saves man-hour and can increase work efficiency.5, mar proof: under high capacity, there is good anti-wear performance.Under certain load, possesses wear-resistant and inadhesive two-fold advantage.6, corrosion resistance: Teflon is corroded by medicine hardly, can protect part to avoid suffering the chemical attack of any kind.That Teflon is widely used in is high temperature resistant, require to do the industry of viscosity.
The application of Teflon coating is divided into the dispersion coating coating process of wet type and the powder paint coating method of dry type conventionally.The coating process of dispersion coating is coating material to be evenly distributed in solvent form dispersion liquid (solid matter is mixed in liquid), and this mixture is by pressure-air atomization and be sprayed at surface of the work.The coating material using in powder paint coating method is ultrafine solid particle form, avoid using solvent, thereby the Divergent Phenomenon occurring while avoiding coating to adhere to is attached on workpiece micro mist shape coating granule, subsequently, the micro mist of coating melting in baker.
And there is unavoidably leak source in Teflon coating in coating process, in prior art, repair leak source and conventionally have following technical scheme: a kind of scheme is that powder is coated on glass plate by the mode of electrostatic spraying, coating after moulding is being separated with glass plate, and cut into strip and block, use the patch of above-mentioned strip and block to repair leak source, adopt the coating flatness after this scheme is repaired poor, and complex steps; Another kind of scheme is to use heat gun to concentrate heating to leak source position, when the coating of leak source is during in the hot state of height, use naked hand to dip powder and be coated in rapidly leak source, conventionally dipping and apply This move will repeat ten to 20 times, this method for repairing and mending can be controlled adhering to accurately of powder, coating protection after repairing is maintained an equal level whole, but workman's hand is easily burned in mending course, and puts on uncontrollable powder amount and the mending course of dipping in after the gloves of protective.
Summary of the invention
It is a kind of repairing pin and method for repairing and mending for teflon coatings specifically that the technical problem to be solved in the present invention is to provide.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is:
The repairing pin of teflon coatings of the present invention, comprise and form the shank of repairing pin main body, one end of shank forms sharp-pointed needle point, and the other end of shank is set to powder spoon.
The present invention can also adopt following technical measures:
Described powder spoon is semi-surrounding structure, forms in the inside of powder spoon wall the space that holds powder, and the opening of powder spoon is arranged near on the powder spoon wall of shank one side, and powder spoon wall inner side is cambered surface with outer surface.
The opening direction of described powder spoon and shank are acute angle between the direction of the place of needle point; Shank is crossing with the outside cambered surface of powder spoon wall to the extended line of powder spoon direction.
Shank, needle point and the powder spoon of described repairing pin are structure as a whole, and repairing pin is metal material.
The method for repairing and mending of teflon coatings of the present invention, comprises the following steps:
A, find the coating leak source on teflon coatings;
B, use are repaired the tip portion of pin front end the impurity of leak source are rejected;
C, use heat gun heat the powder spoon position of repairing on pin, until the temperature of powder spoon exceedes the fusing point of powder;
D, the powder spoon of high temperature is put into rapidly to Teflon fine paint powders, and therefrom scoop out one spoonful of powder, the powder in spoon transfers molten condition to after touching the powder spoon of high temperature;
E, the powder spoon that fills molten condition powder is moved near the leak source position in coating;
F, use heat gun continue powder spoon and leak source position to be heated simultaneously, make the powder in powder spoon keep molten condition;
G, the powder of molten condition is poured on to the leak source of coating;
H, continuous heating, utilize the cambered surface in powder spoon wall outside that powder is flattened, and makes powder cover leak source.
Advantage and good effect that the present invention has are:
The repairing pin of teflon coatings of the present invention, adopt the integrative-structure of needle point, shank and powder spoon, powder spoon inner side can hold powder, and powder can be flattened by its lateral surface, it is simple in structure, is convenient to user and uses and control, in method for repairing and mending, use heat gun to heat powder spoon position, make powder keep molten condition, be convenient to the control in mending course, the qualification rate after leak source is repaired is higher.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the repairing pin of teflon coatings of the present invention;
Fig. 2 is the side structure schematic diagram of the repairing pin of teflon coatings of the present invention;
Fig. 3 is the cutaway view of the powder spoon part of the repairing pin of teflon coatings of the present invention.
The specific embodiment
Referring to drawings and Examples, the present invention will be described in detail.
Fig. 1 is the Facad structure schematic diagram of the repairing pin of teflon coatings of the present invention; Fig. 2 is the side structure schematic diagram of the repairing pin of teflon coatings of the present invention; Fig. 3 is the cutaway view of the powder spoon part of the repairing pin of teflon coatings of the present invention.
As shown in Figure 1 to Figure 3, the repairing pin of teflon coatings of the present invention, comprise and form the shank 1 of repairing pin main body, one end of shank forms sharp-pointed needle point 2, and the other end of shank is set to powder spoon 3.
Powder spoon is semi-surrounding structure, forms in the inside of powder spoon wall the space that holds powder, and the opening 4 of powder spoon is arranged near on the powder spoon wall of shank one side, and powder spoon wall inner side is cambered surface with outer surface.
Powder spoon inner side is cambered surface with outer surface.Inner side cambered surface caves in powder spoon to the inside, thereby there is certain volume, can contain a certain amount of powder, also make the powder of molten condition unlikely from powder spoon drippage easily, the cambered surface in powder spoon wall outside is more conducive to user's machining control to powder thickness and flatness in patching coating process.
The opening direction of powder spoon and shank are acute angle between the direction of the place of needle point; Shank is crossing with the outside cambered surface of powder spoon wall to the extended line of powder spoon direction.User is in the time utilizing repairing to press and smooth for the powder at dew point place, repair pin in approaching the state vertical with repairing face, thereby make to process more convenient, repair efficiency is also better, while running into the repairing face of inclination, be also more prone to operation, avoid powder to flow out from powder spoon.
Shank, needle point and the powder spoon of repairing pin are structure as a whole, and processing mode is simpler, uses more convenient.
Repairing pin is metal material, thus the high temperature of tolerance heat gun.
The method for repairing and mending of teflon coatings of the present invention, comprises the following steps:
A, find the coating leak source on teflon coatings;
B, use are repaired the tip portion of pin front end the impurity of leak source are rejected, and make leak source position keep clean, avoid repairing unsuccessfully;
C, use heat gun heat the powder spoon position of repairing on pin, make the temperature rise of powder spoon, and temperature exceedes the fusing point of powder;
D, the powder spoon of high temperature is put into rapidly to Teflon fine paint powders, and therefrom scoop out one spoonful of powder, the powder in spoon transfers molten condition to after touching the powder spoon of high temperature;
E, the powder spoon that fills molten condition powder is moved near the leak source position in coating;
F, use heat gun continue powder spoon and leak source position to be heated simultaneously, make the powder in powder spoon keep molten condition;
G, the powder of molten condition is poured on to the leak source of coating;
H, continuous heating, utilize the cambered surface in powder spoon wall outside that powder is flattened, and makes powder cover leak source.
Powder spoon inner side can hold powder, and powder can be flattened by its lateral surface, it is simple in structure, being convenient to user uses and controls, in method for repairing and mending, use heat gun to heat powder spoon position, make powder keep molten condition, be convenient to the control in mending course, the qualification rate after leak source is repaired is higher.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention with preferred embodiment openly as above, but, not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (5)
1. a repairing pin for teflon coatings, is characterized in that: comprise and form the shank of repairing pin main body, one end of shank forms sharp-pointed needle point, and the other end of shank is set to powder spoon.
2. the repairing pin of teflon coatings according to claim 1, it is characterized in that: powder spoon is semi-surrounding structure, inside at powder spoon wall forms the space that holds powder, the opening of powder spoon is arranged near on the powder spoon wall of shank one side, and powder spoon wall inner side is cambered surface with outer surface.
3. the repairing pin of teflon coatings according to claim 1 and 2, is characterized in that: the opening direction of powder spoon and shank are acute angle between the direction of the place of needle point; Shank is crossing with the outside cambered surface of powder spoon wall to the extended line of powder spoon direction.
4. the repairing pin of teflon coatings according to claim 3, is characterized in that: shank, needle point and the powder spoon of repairing pin are structure as a whole, and repairing pin is metal material.
5. the method for repairing and mending that utilizes the teflon coatings that the repairing pin of teflon coatings described in claim 1 carries out, comprises the following steps:
A, find the coating leak source on teflon coatings;
B, use are repaired the tip portion of pin front end the impurity of leak source are rejected;
C, use heat gun heat the powder spoon position of repairing on pin, until the temperature of powder spoon exceedes the fusing point of powder;
D, the powder spoon of high temperature is put into rapidly to Teflon fine paint powders, and therefrom scoop out one spoonful of powder, the powder in spoon transfers molten condition to after touching the powder spoon of high temperature;
E, the powder spoon that fills molten condition powder is moved near the leak source position in coating;
F, use heat gun continue powder spoon and leak source position to be heated simultaneously, make the powder in powder spoon keep molten condition;
G, the powder of molten condition is poured on to the leak source of coating;
H, continuous heating, utilize the cambered surface in powder spoon wall outside that powder is flattened, and makes powder cover leak source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135253.XA CN103894323B (en) | 2014-04-04 | 2014-04-04 | The repairing pin and method for repairing and mending of teflon coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135253.XA CN103894323B (en) | 2014-04-04 | 2014-04-04 | The repairing pin and method for repairing and mending of teflon coatings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103894323A true CN103894323A (en) | 2014-07-02 |
| CN103894323B CN103894323B (en) | 2017-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410135253.XA Expired - Fee Related CN103894323B (en) | 2014-04-04 | 2014-04-04 | The repairing pin and method for repairing and mending of teflon coatings |
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| Country | Link |
|---|---|
| CN (1) | CN103894323B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084478A (en) * | 1998-09-08 | 2000-03-28 | Kao Corp | Coating method |
| JP2008084478A (en) * | 2006-09-28 | 2008-04-10 | Fujitsu Ltd | Method of manufacturing magnetic recording device and magnetic recording device |
| CN201409962Y (en) * | 2009-06-04 | 2010-02-24 | 毕金花 | Multifunctional medical needle |
| CN202761731U (en) * | 2012-09-25 | 2013-03-06 | 王燕锋 | Novel medical ladle |
| CN203234724U (en) * | 2013-04-25 | 2013-10-16 | 上海中医药大学附属岳阳中西医结合医院 | Multifunctional combined type anal fistula probe |
| TWM463646U (en) * | 2013-04-03 | 2013-10-21 | Cardinal Company Ltd | Improved structure of wax melting spoon |
| CN203862519U (en) * | 2014-04-04 | 2014-10-08 | 天津瑞唐涂装科技有限公司 | Repairing needle for Teflon coating |
-
2014
- 2014-04-04 CN CN201410135253.XA patent/CN103894323B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084478A (en) * | 1998-09-08 | 2000-03-28 | Kao Corp | Coating method |
| JP2008084478A (en) * | 2006-09-28 | 2008-04-10 | Fujitsu Ltd | Method of manufacturing magnetic recording device and magnetic recording device |
| CN201409962Y (en) * | 2009-06-04 | 2010-02-24 | 毕金花 | Multifunctional medical needle |
| CN202761731U (en) * | 2012-09-25 | 2013-03-06 | 王燕锋 | Novel medical ladle |
| TWM463646U (en) * | 2013-04-03 | 2013-10-21 | Cardinal Company Ltd | Improved structure of wax melting spoon |
| CN203234724U (en) * | 2013-04-25 | 2013-10-16 | 上海中医药大学附属岳阳中西医结合医院 | Multifunctional combined type anal fistula probe |
| CN203862519U (en) * | 2014-04-04 | 2014-10-08 | 天津瑞唐涂装科技有限公司 | Repairing needle for Teflon coating |
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| Publication number | Publication date |
|---|---|
| CN103894323B (en) | 2017-10-13 |
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