CN101886257A - Device for preparing magnesium alloy surface conversion corrosion-resistant film layer - Google Patents
Device for preparing magnesium alloy surface conversion corrosion-resistant film layer Download PDFInfo
- Publication number
- CN101886257A CN101886257A CN 201010217151 CN201010217151A CN101886257A CN 101886257 A CN101886257 A CN 101886257A CN 201010217151 CN201010217151 CN 201010217151 CN 201010217151 A CN201010217151 A CN 201010217151A CN 101886257 A CN101886257 A CN 101886257A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- treatment tank
- conversion
- conversion treatment
- film layer
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 51
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 22
- 230000007797 corrosion Effects 0.000 title abstract description 7
- 238000005260 corrosion Methods 0.000 title abstract description 7
- 238000011282 treatment Methods 0.000 claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 239000002245 particle Substances 0.000 abstract description 9
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 239000000126 substance Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- -1 Cr6+ ion Chemical class 0.000 description 1
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 description 1
- 101100513612 Microdochium nivale MnCO gene Proteins 0.000 description 1
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000037427 ion transport Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000000467 phytic acid Substances 0.000 description 1
- 229940068041 phytic acid Drugs 0.000 description 1
- 235000002949 phytic acid Nutrition 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000010129 solution processing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses a device for preparing a conversion corrosion-resistant film layer on the surface of magnesium alloy, which comprises a conversion treatment tank, a thermocouple, an electric heater and a temperature controller, wherein the thermocouple is electrically connected with the temperature controller, the electric heater and the thermocouple are positioned in the conversion treatment tank, and the temperature controller controls the electric heater according to the temperature measured by the thermocouple, and is characterized in that: and a magnetic field device for generating a magnetic field is arranged outside the conversion treatment tank. Under the action of an external magnetic field, the device generates Lorentz force due to the action of the magnetic field intensity, accelerates the movement of particles with points, accelerates the diffusion of the particles, increases the flow of the particles between interfaces, and accelerates the progress of a film forming reaction. And the accelerated particles move regularly, so that the film layer is more compact, and the corrosion resistance of the generated film layer is better.
Description
Technical field
The present invention relates to a kind of device for preparing conversion wear-resistance film layer, relate in particular to a kind of device of preparation conversion wear-resistance film layer on magnesium alloy surface of externally-applied magnetic field.
Background technology
It is low that magnesium alloy has density, and premium properties such as specific tenacity, specific rigidity height and be easy to reclaim is described as 21 century green engineering material.But the corrosion resistance nature of magnesium alloy is relatively poor, reason is to be that the standard potential of magnesium is minimum in all structural metals on the one hand, on the other hand, the Mg alloy surface oxide film is cell texture, magnesium alloy substrate be there is no good corrosion prevention effect, and this has greatly limited the Application of Magnesium scope.Chemically on Mg alloy surface, produce the compound conversion film of one deck and matrix mortise, can significantly improve the corrosion resistance of magnesium alloy energy.Traditional magnesium alloy chemical conversion processing technology mainly adopts and contains the chromate conversion treatments technology, and environment has very big harm but chromate conversion treatments liquid contains high pollution chemical substance Cr6+ ion pair, in addition; The rete of chromate conversion technology gained exists a large amount of tiny cracks and hole, and corrosion resisting property is undesirable, has become the bottleneck of restriction conversion film technical development.Therefore, realize Sustainable development for the protection environment, people just do not stop to seek the Chrome-free transformation technology of alternative chromate conversion technology always.Magnesium alloy transformation technologies such as phosphoric acid salt, phosphoric acid salt-permanganate, molybdate, rare earth and phytic acid had once been studied.But all exist a large amount of tiny cracks and hole equally owing to transform rete, shortcomings such as bonding force difference are difficult to satisfy the needs of actual engineering.
Existing conversion treatment device mainly comprises power supply, treatment trough, heating unit, temperature control unit and glass stick.The conversion disposal process is as follows: treatment solution in the treatment trough is heated, and devices such as use thermopair are controlled the temperature of treatment solution, and with continuous stirring.Use this existing apparatus to prepare that the method for conversion film is simple and practical, cost is low, has ubiquity and versatility.Yet use the chemical reaction of this conversion treatment device particle disorderly and unsystematic, be unfavorable for controlling the generation of conversion film, the homogeneity of conversion film, compactness and chemical property are relatively poor.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of device for preparing conversion wear-resistance film layer on magnesium alloy surface.
Above-mentioned purpose realizes by following proposal:
A kind of device for preparing conversion wear-resistance film layer on magnesium alloy surface, it comprises conversion treatment tank, thermopair, electric heater, temperature regulator, described thermopair is electrically connected with described temperature regulator, described electric heater and described thermopair are arranged in described conversion treatment tank, and the temperature that described temperature regulator records according to described thermopair is controlled described electric heater, it is characterized in that: the described conversion treatment tank outside is provided with the magnetic field device that produces magnetic field.
According to said apparatus, it is characterized in that the NS level in described magnetic field is perpendicular to described conversion treatment tank.
According to said apparatus, it is characterized in that described magnetic field device is made up of iron core and coil, described iron core and coil encircling are around described conversion treatment tank, and described iron core is in the outside of described coil.
This device is under the effect of externally-applied magnetic field, because the effect of magneticstrength produces lorentz's force, the diffusion of particle has been quickened in the motion of accelerated band point particle, has increased the mobile of particle between the interface, has promptly quickened the carrying out of film formation reaction.And the particle that quickens carries out the mode of motion of systematicness, thereby makes rete fine and close more, and the corrosion resistance nature that generates rete is better.
Description of drawings
Fig. 1 is the structural representation of device of the present invention;
Embodiment
Referring to Fig. 1, the device of preparation conversion wear-resistance film layer on magnesium alloy surface comprises conversion treatment tank 3, thermopair 5, electric heater 6 and temperature regulator 7.Thermopair 5 and electric heater 6 are electrically connected with temperature regulator 7 respectively, and electric heater 6 and thermopair 5 are arranged in conversion treatment tank 3, and temperature regulator 7 is lowered the temperature according to temperature control electric heater 6 intensifications that thermopair 5 records.Be provided with the magnetic field device that produces magnetic field in the outside of conversion treatment tank 3, magnetic field device is made up of iron core 1 and coil 2, and iron core 1 and coil 2 are looped around around the conversion treatment tank, and height is suitable with conversion treatment tank 3, and iron core 1 is in the outside of coil 2.After inserting direct current, the direction in magnetic field is disposed and conversion treatment tank 3.
The externally-applied magnetic field effect chemical conversion process of preparation magnesium alloy chromium-free chemical conversion film adopts following measure:
1. pre-treating technology
Magnesium alloy must carry out pre-treatment before the action of a magnetic field chemical conversion is handled, the pre-treatment procedure relation is to the homogeneity that transforms rete, performances such as bonding force and compactness.In the pre-treatment process, to reach pollutents such as removing the Mg alloy surface grease, for the chemical conversion process under the follow-up the action of a magnetic field is prepared.The pre-treatment process is:
(1) skimming treatment: to Mg alloy surface exist the greasy dirt thing with acetone 20-40 ℃, ultrasonic wave 5-10 minute cleaning by degreasing, with prevent the insufficient and chemical conversion of surface cleaning handle finish insufficient.
(2) alkali cleaning is handled: the residue that adopts the further degreasing of alkali cleaning and stay owing to the acetone clean surface.Specifically consisting of of alkaline wash:
NaOH 10g/L-150g/L
Na
2SiO
3 20g/L-200g/L
Na
3PO
4 15g/L-150g/L
The processing condition of alkali cleaning are:
Temperature: 40-80 ℃,
Time: 2-15 minute,
PH value: 8-12 carries out rinsing to the magnesium alloy after the alkali cleaning in room temperature 20-40 ℃ scope.
(3) oven dry continues 15min. in 25 ℃ of baking ovens
2. the Chrome-free chemical conversion is handled
Magnesium alloy is immersed in the Chrome-free chemical pretreatment solution, under the effect of externally-applied magnetic field, carry out conversion processing.Used magnetic field is uniform magnetic field.
(1) conversion fluid prescription and treatment process
Solution formula is:
K
3VO
4：15g/L-120g/L，
MnCO
3：6g/L-20g/L，
Promotor: NaClO
40.5g/L-10g/L,
Membrane-forming agent: CaCO
34g/L-40g/L,
The treatment solution processing parameter is:
Treatment time: 5-25 minute
Treatment temp: 30-70 ℃
Externally-applied magnetic field skill parameter is
Magnetic induction density: 0.1-2 tesla
Magnetic field is one of effective means that influences electrochemical kinetics.The hydromagnetics effect acts near diffusion layer and the viscous layer the electrode, can strengthen the ion mass transfer at electrode place, changes the ionic velocity field.
Under the condition of externally-applied magnetic field, the hydromagnetics effect that Lorentz power causes has influenced electrochemical process significantly.Can be subjected to the effect of Lorentz power during ionic current cutting magnetic line in the solution; Lorentz power makes ion do the spiral-line orientation movement, thereby has played the stirring action of treatment solution, and makes ion do directed accelerated motion.Therefore, externally-applied magnetic field has and can regulate the ion transport process in the electrochemical process.
Claims (4)
1. device for preparing conversion wear-resistance film layer on magnesium alloy surface, it comprises conversion treatment tank, thermopair, electric heater, temperature regulator, described thermopair is electrically connected with described temperature regulator, described electric heater and described thermopair are arranged in described conversion treatment tank, and the temperature that described temperature regulator records according to described thermopair is controlled described electric heater, it is characterized in that: the described conversion treatment tank outside is provided with the magnetic field device that produces magnetic field.
2. device according to claim 1 is characterized in that, the NS level in described magnetic field is perpendicular to described conversion treatment tank.
3. device according to claim 2 is characterized in that described magnetic field device is made up of iron core and coil, and described iron core and coil encircling are around described conversion treatment tank, and described iron core is in the outside of described coil.
4. device according to claim 3 is characterized in that, what described magnetic field device inserted is direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102171514A CN101886257B (en) | 2010-07-01 | 2010-07-01 | Device for preparing magnesium alloy surface conversion corrosion-resistant film layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102171514A CN101886257B (en) | 2010-07-01 | 2010-07-01 | Device for preparing magnesium alloy surface conversion corrosion-resistant film layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101886257A true CN101886257A (en) | 2010-11-17 |
| CN101886257B CN101886257B (en) | 2012-05-09 |
Family
ID=43072343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102171514A Expired - Fee Related CN101886257B (en) | 2010-07-01 | 2010-07-01 | Device for preparing magnesium alloy surface conversion corrosion-resistant film layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886257B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872734A (en) * | 2012-08-31 | 2013-01-16 | 北方工业大学 | Device for charging nano particles |
| CN104561980A (en) * | 2015-01-06 | 2015-04-29 | 南昌大学 | Surface treatment method for magnesium alloy |
| CN108048828A (en) * | 2017-12-08 | 2018-05-18 | 马鞍山合力仪表有限责任公司 | A kind of surface treatment method of stress metal watch shell |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165872A (en) * | 1996-05-17 | 1997-11-26 | 刘武青 | Magnetic plating appts. |
| CN1673422A (en) * | 2005-01-05 | 2005-09-28 | 河海大学 | Heating temperature control and stirring equipment for electric plating and chemical plating |
| CN101235496A (en) * | 2008-02-28 | 2008-08-06 | 武汉理工大学 | Method for preparing chemical composite plating crystal whisker enhancement nickel-base plating coat under magnetic field |
-
2010
- 2010-07-01 CN CN2010102171514A patent/CN101886257B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165872A (en) * | 1996-05-17 | 1997-11-26 | 刘武青 | Magnetic plating appts. |
| CN1673422A (en) * | 2005-01-05 | 2005-09-28 | 河海大学 | Heating temperature control and stirring equipment for electric plating and chemical plating |
| CN101235496A (en) * | 2008-02-28 | 2008-08-06 | 武汉理工大学 | Method for preparing chemical composite plating crystal whisker enhancement nickel-base plating coat under magnetic field |
Non-Patent Citations (1)
| Title |
|---|
| 《电镀与环保》 20040930 陈红辉等 电磁场在化学镀中的影响 第23页 1-4 第24卷, 第5期 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872734A (en) * | 2012-08-31 | 2013-01-16 | 北方工业大学 | Device for charging nano particles |
| CN104561980A (en) * | 2015-01-06 | 2015-04-29 | 南昌大学 | Surface treatment method for magnesium alloy |
| CN108048828A (en) * | 2017-12-08 | 2018-05-18 | 马鞍山合力仪表有限责任公司 | A kind of surface treatment method of stress metal watch shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101886257B (en) | 2012-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100464006C (en) | Process for preparing magnesium alloy surface function gradient film | |
| CN104651908B (en) | The preparation method and method for sealing of a kind of Mg alloy surface ceramic film | |
| CN103868775B (en) | A kind of metallographic sample preparation method measured for boiler heating surface scale thickness | |
| CN101886257B (en) | Device for preparing magnesium alloy surface conversion corrosion-resistant film layer | |
| CN101307448B (en) | Antiseptic treatment process for magnesium alloy section bar, especially for magnesium alloy tube | |
| CN101942655A (en) | Preparation method of chromium-free passivated liquid and method for passivating electrogalvanizing or zinc alloy layer by same | |
| CN106350794A (en) | Magnesium alloy chromium-free fluorine-free chemical conversion film-forming solution and preparation method of film | |
| CN103993341B (en) | A kind of enclosure method of aluminium alloy anode oxide film | |
| CN102586770A (en) | Method for preparing titanium-zirconium/polyhydroxy esterified product composite conversion coating of aluminum alloy surface | |
| CN100516317C (en) | Method of preparing electrophoretic deposited hydroxyl apatite coating on Ti or Ti alloy surface | |
| CN108179419A (en) | A kind of preparation method of Sintered NdFeB magnet surface enamel coating | |
| CN107012453A (en) | A kind of method that green low temperature quickly prepares phosphating coat | |
| CN108286065B (en) | A kind of preparation method of the aluminium alloy oil drilling pipe screw joint with insulation and wear and corrosion behavior | |
| CN103031584A (en) | Process of silane-zirconium salt conversion treatment before metal cathode electrophoresis coating | |
| CN101886258B (en) | Method for preparing magnesium alloy surface conversion corrosion-resistant film layer | |
| CN104178773A (en) | Chromium-free environmental-friendly silicon-contained aluminum and aluminum alloy surface treating agent and preparation method thereof | |
| CN104789021A (en) | Organic-inorganic composite anti-corrosion coating resisting to medium-high temperature geothermal environments, and preparation method for coating | |
| CN104498856B (en) | A kind of high pure spelter coating hole sealing agent of anti-rotten electric arc spraying and preparation technology and its application | |
| CN102839369A (en) | Electric field assisted chemical conversion treatment method of surface of magnesium alloy | |
| CN103147112B (en) | A kind of electrolytic solution and for the preparation of the purposes of nuclear fuel rod zirconium alloy cladding micro-arc oxidation films and method | |
| CN104561980A (en) | Surface treatment method for magnesium alloy | |
| CN102899703A (en) | Silicate electrolyte and application of silicate electrolyte in magnesium alloy micro-arc oxidation film preparation | |
| CN104711559A (en) | Normal-temperature rapid phosphatizing agent with excellent corrosion resistance and production method thereof | |
| CN102850831A (en) | Novel anticorrosive coating for grid fitting | |
| CN209702865U (en) | A kind of galvanizing by dipping cleaning device cleaned up |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20150701 |
|
| EXPY | Termination of patent right or utility model |