CN1381706A - Nano anticrossion technology for heat radiator by spraying on its inner surface - Google Patents
Nano anticrossion technology for heat radiator by spraying on its inner surface Download PDFInfo
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- CN1381706A CN1381706A CN 02110362 CN02110362A CN1381706A CN 1381706 A CN1381706 A CN 1381706A CN 02110362 CN02110362 CN 02110362 CN 02110362 A CN02110362 A CN 02110362A CN 1381706 A CN1381706 A CN 1381706A
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Abstract
An internal anticorrosion technology with nm-sprayed coating for heat radiator includes such steps as pre-treating its inner surface, baking at 80-200 deg.C for 20-60 min or natural drying in air, electrostatic spray of nanometre paint particles onto the inner surface and solidifying at 80-200 deg.C for 20-60 min. The treated heat radiator features high hardness and corrosion proofness and high-temp. resistance, and longs ervice life.
Description
One, technical field:
The invention belongs to the spraying technology field, especially relate to a kind of nano anticrossion technology for heat radiator by spraying on its inner surface.
Background technology:
At present, the use of radiator is very extensive, picture radiator, water tank etc., but radiator is interior anticorrosion, especially Aluminium Radiator is interior anticorrosion, adopts the paint anticorrosion process always, therefore causes high temperature resistant, the corrosion resistance, mechanical performance, paint film fragility, toughness, pliability, durability etc. of radiator to have in various degree defective and deficiency, this has just restricted radiator, especially the application of Aluminium Radiator.
Three, summary of the invention:
The objective of the invention is to improve the deficiency of prior art and a kind of heat-resisting, corrosion-resistant, the life-span is long, the scope of application is wide nano anticrossion technology for heat radiator by spraying on its inner surface is provided.
Purpose of the present invention realizes by the following technical solutions, and a kind of nano anticrossion technology for heat radiator by spraying on its inner surface is characterized in that this method may further comprise the steps:
(1) preliminary treatment is carried out on the inner surface of radiator, to improve the cementability of radiator and nano paint powder;
(2) radiator that preliminary treatment is good keeps 80-200 ℃ of temperature heat continuously baking 20-60 minute or natural air drying, makes the various stable performances of radiator;
(3) use the electrostatic dusting rifle that the nano paint powder of static electrification is sprayed to the radiator inner surface;
(4) will spray good radiator and put into curing oven curing, the curing oven temperature remains on 80-200 ℃, and get final product 20-60 minute hardening time.
What described preprocess method adopted is to embathe formula or fountain, and its technological process is:
(1) technological process of embathing the formula pretreatment mode is:
A, degreasing are put into treatment fluid with workpiece and are kept 60 ℃ of temperature, embathe 3 minutes, and treatment fluid mainly contains sodium carbonate, silicate, phosphate, activated media;
B, cleaning were used room temperature light water cleaning workpiece 1 minute;
C, deoxidation thing use acidic treatment liquid, and treatment fluid mainly contains nitric acid, ferric sulfate, sulfuric acid;
D, cleaning were used room temperature light water cleaning workpiece 1 minute;
E, chemistry change handles treatment conditions: 50 ℃ of temperature, and 3 minutes, treatment fluid mainly contained: the fluoride of chromate, ferricyanide, chromium and aluminium fluoride or chromate, phosphate and aluminium;
F, cleaning were used room temperature light water cleaning workpiece 1 minute;
G, cleaning were used room-temperature ion water cleaning workpiece 1 minute.
(2) technological process of fountain pretreatment mode is:
A, degreasing with the treatment fluid of 60 ℃ of workpiece serviceability temperatures, sprayed 3 minutes, and treatment fluid mainly contains sodium carbonate, silicate, phosphate, activated media;
B, cleaning were used room temperature light water cleaning workpiece 1 minute;
C, chemistry change to be handled, and treatment conditions: 50 ℃ of temperature, 3 minutes, treatment fluid mainly contained: the fluoride of chromate, ferricyanide, chromium and aluminium fluoride or chromate, phosphate and aluminium.
The electrostatic dusting rifle of described employing is that integrated circuit, gas circuit high pressure are built-in, and output voltage is 0-400kv (negative polarity), and pressure is 0.1-0.8 atmospheric pressure, and current strength is the 0.1-1 milliampere.
Nano paint can utilize the nano material that adds 2-10% in pure polyester resin coating, acrylic resin coating, polypropylene cold coating, epoxy coating, acrylic polyurethane coating, epoxy resin pure polyester resin mixed powder coating and other dusty spray respectively to form for primary raw material, and nano material is that titanium, brill, nickel, silica, additive and abundant stirring of other non-ferrous metals grinding form.
Curing oven is to adopt continuous passing furnace, bridge-type continuous tunnel furnace and batch-type furnace.
The present invention adopts and add the nanometer powder technology in coating, makes to have fabulous heat-resisting, anti-marquis, corrosion resistance by the radiator inner surface that uses the inventive method to handle, and the consumption of coating powder lacks than other coating, has improved the service life of workpiece.
Four, specific embodiments:
Embodiment, a kind of nano anticrossion technology for heat radiator by spraying on its inner surface, preliminary treatment is carried out on the inner surface of radiator, to improve the cementability of radiator and nano paint powder, what preprocess method adopted is to embathe formula or fountain, and the technological process that (1) embathes the formula pretreatment mode is: a, degreasing, and workpiece is put into treatment fluid keep 60 ℃ of temperature, embathed 3 minutes, treatment fluid mainly contains sodium carbonate, silicate, phosphate, activated media; B, cleaning were used room temperature light water cleaning workpiece 1 minute; C, deoxidation thing use acidic treatment liquid, and treatment fluid mainly contains nitric acid, ferric sulfate, sulfuric acid; D, cleaning were used room temperature light water cleaning workpiece 1 minute; E, chemistry change handles treatment conditions: 50 ℃ of temperature, and 3 minutes, treatment fluid mainly contained: the fluoride of chromate, ferricyanide, chromium and aluminium fluoride or chromate, phosphate and aluminium; F, cleaning were used room temperature light water cleaning workpiece 1 minute; G, cleaning were used room-temperature ion water cleaning workpiece 1 minute.(2) technological process of fountain pretreatment mode is: a, degreasing, with the treatment fluid of 60 ℃ of workpiece serviceability temperatures, sprayed 3 minutes, and treatment fluid mainly contains sodium carbonate, silicate, phosphate, activated media; B, cleaning were used room temperature light water cleaning workpiece 1 minute; C, chemistry change to be handled, and treatment conditions: 50 ℃ of temperature, 3 minutes, treatment fluid mainly contained: the fluoride of chromate, ferricyanide, chromium and aluminium fluoride or chromate, phosphate and aluminium.Present embodiment adopts and embathes the formula preliminary treatment, the radiator maintenance temperature that preliminary treatment is good 80-200 ℃ of heat continuously baking 20-60 minute or natural air drying, present embodiment adopts 80 ℃ of temperature to heat continuously and toasted 60 minutes, make the various stable performances of radiator, use the electrostatic dusting rifle that the nano paint powder of static electrification is sprayed to the radiator inner surface, the electrostatic dusting rifle is an integrated circuit, the gas circuit high pressure is built-in, output voltage is 0-400kv (negative polarity), pressure is 0.1-0.8 atmospheric pressure, current strength is the 0.1-1 milliampere, barral of a gun length is decided according to radiator length, the diameter that dusts of spray gun is decided according to the working surface profile, the diameter that dusts of spray gun can change between 100mm (30 ° of jet angles)-400mm (180 ° of jet angles), to recess and hollow position, should adopt little spraying diameter, to big spraying diameters of employing such as flat pieces, nano paint can utilize pure polyester resin coating, acrylic resin coating, the polypropylene cold coating, epoxy coating, acrylic polyurethane coating, the nano material that adds 2-10% in epoxy resin pure polyester resin mixed powder coating and other dusty spray respectively is that primary raw material is formed, present embodiment uses the nano material of pure polyester resin coating adding 6%, nano material is a titanium, bore, nickel, silica, additive and other non-ferrous metals grind fully to stir and form, the radiator that spraying is good is put into curing oven and is solidified, the curing oven temperature remains on 80-200 ℃, get final product 20-60 minute hardening time, in the solidification process variation of furnace temperature to remain on ± 3 ℃ within, curing oven can be a continuous passing furnace, bridge-type continuous tunnel furnace and batch-type furnace.
Adopt this method spraying nano paint and common spraying nano paint performance comparison as follows, what select here is pure polyester resin coating and nanometer pure polyester resin coating:
| Project | Quality index | Pure polyester resin coating | Nanometer pure polyester resin coating |
| Outward appearance | The surfacing color and luster is good, allows slight tangerine peel | The surfacing color and luster is even, and slight tangerine peel is arranged | The surfacing color and luster is even, and slight tangerine peel is arranged |
| Adhesive force | Secondary CTB/T9286-88 | 0 grade | 0 grade |
| Pencil hardness | GB/T6739-86H-2H | 2H | 6H |
| Bend test | 0 grade of GB/T11185-88 | 0 grade | 0 grade |
| Impact test | GB/T1732-931kg/50cm | 1kg/50cm | 3kg/50cm |
| Damp heat test | BS3900Part?F 2GB1749/79 is 1000 hours after 1,973 500 hours | Film and do not have slightly loss of gloss of influence | Film and do not have influence, no loss of gloss |
| The gloss test | 0 grade of loss of gloss rate＜3% of GB/T1766-1995 | 0 grade, loss of gloss rate＜3% (instrument survey) | 0 grade, loss of gloss rate＜3% (instrument survey) |
| Corrosion resistance test | Soaked 30 days in 10%HCl 20%NaOH 3.5%NaCl reagent, the test specimen surface does not have phenomenons such as bubbling, come off | Soaked 3 years in 10%HCl 20%NaOH 3.5%NaCl reagent, the test specimen surface does not have phenomenons such as bubbling, come off | Soaked 3 years in 10%HCl 20%NaOH 3.5%NaCl reagent, the test specimen surface does not have phenomenons such as bubbling, come off |
| In 85%-95% concentrated sulfuric acid reagent, soak test specimen surface carbonization in 40 minutes | The back carbonization that comes off on 70 microns aluminium section bars of filming after 1 hour of 85%-95% concentrated sulfuric acid normal temperature becomes fine-powdered | 85%-95% concentrated sulfuric acid normal temperature is 70 microns beginning part slabbings disengaging aluminium section bars of filming after 40 minutes, 2.5 after hour, slabbing breaks away from aluminium section bar fully, film in the concentrated sulfuric acid just 80% carbonization after 48 hours, carbonization after 72 hours |
Outward appearance, adhesive force, bend test more all reach outside the standard laid down by the ministries or commissions of the Central Government as can be seen from above table, pencil hardness, impact test, damp heat test, corrosion resistance test, the nanometer powder coating of use this method spraying surpasses 2-3 doubly than every index of common coating, special acid resistance index exceeds tens times, have fabulous heat-resisting, anti-marquis, light resistance, corrosion resistant excellent mechanical properties and ornamental, more durable in use, can be widely used in the field such as anticorrosion, decoration of metal.
Claims (5)
1, a kind of nano anticrossion technology for heat radiator by spraying on its inner surface is characterized in that this method may further comprise the steps:
(1) preliminary treatment is carried out on the inner surface of radiator, to improve the cementability of radiator and nano paint powder;
(2) radiator that preliminary treatment is good keeps 80-200 ℃ of temperature heat continuously baking 20-60 minute or natural air drying, makes the various stable performances of radiator;
(3) use the electrostatic dusting rifle that the nano paint powder of static electrification is sprayed to the radiator inner surface;
(4) will spray good radiator and put into curing oven curing, the curing oven temperature remains on 80-200 ℃, and get final product 20-60 minute hardening time.
2, a kind of nano anticrossion technology for heat radiator by spraying on its inner surface according to claim 1, what it is characterized in that described preprocess method employing is to embathe formula or fountain, its technological process is:
(1) technological process of embathing the formula pretreatment mode is:
A, degreasing are put into treatment fluid with workpiece and are kept 60 ℃ of temperature, embathe 3 minutes, and treatment fluid mainly contains sodium carbonate, silicate, phosphate, activated media;
B, cleaning were used room temperature light water cleaning workpiece 1 minute;
C, deoxidation thing use acidic treatment liquid, and treatment fluid mainly contains nitric acid, ferric sulfate, sulfuric acid;
D, cleaning were used room temperature light water cleaning workpiece 1 minute;
E, chemistry change handles treatment conditions: 50 ℃ of temperature, and 3 minutes, treatment fluid mainly contained: the fluoride of chromate, ferricyanide, chromium and aluminium fluoride or chromate, phosphate and aluminium;
F, cleaning were used room temperature light water cleaning workpiece 1 minute;
G, cleaning were used room-temperature ion water cleaning workpiece 1 minute.
(2) technological process of fountain pretreatment mode is:
A, degreasing with the treatment fluid of 60 ℃ of workpiece serviceability temperatures, sprayed 3 minutes, and treatment fluid mainly contains sodium carbonate, silicate, phosphate, activated media;
B, cleaning were used room temperature light water cleaning workpiece 1 minute;
C, chemistry change to be handled, and treatment conditions: 50 ℃ of temperature, 3 minutes, treatment fluid mainly contained: the fluoride of chromate, ferricyanide, chromium and aluminium fluoride or chromate, phosphate and aluminium.
3, a kind of nano anticrossion technology for heat radiator by spraying on its inner surface according to claim 1, the electrostatic dusting rifle that it is characterized in that described employing is that integrated circuit, gas circuit high pressure are built-in, output voltage is 0-400kv (negative polarity), pressure is 0.1-0.8 atmospheric pressure, and current strength is the 0.1-1 milliampere.
4, a kind of nano anticrossion technology for heat radiator by spraying on its inner surface according to claim 1, it is characterized in that described nano paint can utilize the nano material that adds 2-10% in pure polyester resin coating, acrylic resin coating, polypropylene cold coating, epoxy coating, acrylic polyurethane coating, epoxy resin pure polyester resin mixed powder coating and other dusty spray respectively to form for primary raw material, nano material is that titanium, cobalt, nickel, silica, additive and abundant stirring of other non-ferrous metals grinding form.
5, a kind of nano anticrossion technology for heat radiator by spraying on its inner surface according to claim 1 is characterized in that described curing oven is to adopt continuous passing furnace, bridge-type continuous tunnel furnace and batch-type furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02110362 CN1381706A (en) | 2002-04-26 | 2002-04-26 | Nano anticrossion technology for heat radiator by spraying on its inner surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02110362 CN1381706A (en) | 2002-04-26 | 2002-04-26 | Nano anticrossion technology for heat radiator by spraying on its inner surface |
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| CN1381706A true CN1381706A (en) | 2002-11-27 |
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| CN 02110362 Pending CN1381706A (en) | 2002-04-26 | 2002-04-26 | Nano anticrossion technology for heat radiator by spraying on its inner surface |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348337C (en) * | 2005-04-06 | 2007-11-14 | 北京有色金属研究总院 | Coating technology of corrosion resistant paint on the inner surface of radiator and its special equipment |
| CN100442003C (en) * | 2004-11-15 | 2008-12-10 | 日立空调·家用电器株式会社 | Heat-exchanger and making method |
| CN103170446A (en) * | 2013-04-11 | 2013-06-26 | 惠州东风易进工业有限公司 | Static coating method of condenser core |
| CN103763793A (en) * | 2013-12-25 | 2014-04-30 | 镇江东方电热科技股份有限公司 | PTC electric heater preventing oxidized dust and manufacturing method thereof |
| CN104028429A (en) * | 2014-06-25 | 2014-09-10 | 梧州恒声电子科技有限公司 | Electrostatic powder spraying process of metal product |
| CN105232233A (en) * | 2015-05-29 | 2016-01-13 | 杭州珂瑞特机械制造有限公司 | Paper diaper pull-up water cooling coating component and method |
| CN107400840A (en) * | 2017-07-25 | 2017-11-28 | 合肥嘉仕诚能源科技有限公司 | A kind of nanometer technology galvanized anticorrosive etching technique |
| CN107655358A (en) * | 2017-10-26 | 2018-02-02 | 浙江华彩新材料有限公司 | A kind of corrosion-resistant heat exchange tube and preparation method thereof |
| CN108296153A (en) * | 2017-12-29 | 2018-07-20 | 安徽兴乐健身器材有限公司 | A kind of method of the anti-skidding anti-sweat processing of handle for dumbbell |
| CN108950648A (en) * | 2018-06-21 | 2018-12-07 | 东莞市依诺电子科技有限公司 | A kind of high anti-corrosion high reliability treatment process of spreader surface |
| CN109489471A (en) * | 2018-11-12 | 2019-03-19 | 昊姆（上海）节能科技有限公司 | The plate and its method for anticorrosion treatment of anti-corrosion plate heat exchanger |
-
2002
- 2002-04-26 CN CN 02110362 patent/CN1381706A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442003C (en) * | 2004-11-15 | 2008-12-10 | 日立空调·家用电器株式会社 | Heat-exchanger and making method |
| CN100348337C (en) * | 2005-04-06 | 2007-11-14 | 北京有色金属研究总院 | Coating technology of corrosion resistant paint on the inner surface of radiator and its special equipment |
| CN103170446A (en) * | 2013-04-11 | 2013-06-26 | 惠州东风易进工业有限公司 | Static coating method of condenser core |
| CN103170446B (en) * | 2013-04-11 | 2014-12-17 | 惠州东风易进工业有限公司 | Static coating method of condenser core |
| CN103763793A (en) * | 2013-12-25 | 2014-04-30 | 镇江东方电热科技股份有限公司 | PTC electric heater preventing oxidized dust and manufacturing method thereof |
| CN104028429A (en) * | 2014-06-25 | 2014-09-10 | 梧州恒声电子科技有限公司 | Electrostatic powder spraying process of metal product |
| CN105232233A (en) * | 2015-05-29 | 2016-01-13 | 杭州珂瑞特机械制造有限公司 | Paper diaper pull-up water cooling coating component and method |
| CN107400840A (en) * | 2017-07-25 | 2017-11-28 | 合肥嘉仕诚能源科技有限公司 | A kind of nanometer technology galvanized anticorrosive etching technique |
| CN107655358A (en) * | 2017-10-26 | 2018-02-02 | 浙江华彩新材料有限公司 | A kind of corrosion-resistant heat exchange tube and preparation method thereof |
| CN108296153A (en) * | 2017-12-29 | 2018-07-20 | 安徽兴乐健身器材有限公司 | A kind of method of the anti-skidding anti-sweat processing of handle for dumbbell |
| CN108950648A (en) * | 2018-06-21 | 2018-12-07 | 东莞市依诺电子科技有限公司 | A kind of high anti-corrosion high reliability treatment process of spreader surface |
| CN109489471A (en) * | 2018-11-12 | 2019-03-19 | 昊姆（上海）节能科技有限公司 | The plate and its method for anticorrosion treatment of anti-corrosion plate heat exchanger |
| CN109489471B (en) * | 2018-11-12 | 2020-05-05 | 昊姆（上海）节能科技有限公司 | Sheet bar of anti-corrosion plate type heat exchanger and anti-corrosion treatment method thereof |
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