CN108866556A - A kind of hub surface pre-treating technology - Google Patents
A kind of hub surface pre-treating technology Download PDFInfo
- Publication number
- CN108866556A CN108866556A CN201810534677.1A CN201810534677A CN108866556A CN 108866556 A CN108866556 A CN 108866556A CN 201810534677 A CN201810534677 A CN 201810534677A CN 108866556 A CN108866556 A CN 108866556A
- Authority
- CN
- China
- Prior art keywords
- hub surface
- hub
- wheel hub
- chromium
- treating technology
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
Abstract
The invention discloses a kind of hub surface pre-treating technologies, the hub surface pre-treating technology step includes hot water wash, grease removal processing, pickling processes, chromium-free deactivation processing, pure water is washed, surface pretreatment process through the invention, hub surface performance can effectively be improved, have to the degreasing effect of hub surface and remarkably promotes, while enhancing hub surface glossiness and activity, increase hub surface asperity, so that hub surface can be combined with the technique of spray paint later, enhance the binding force between wheel hub coating and hub surface, enhance the corrosion resistance of surface wheel hub, it is easy to fall off can to solve dope layer, the short problem of service life.
Description
Technical field
The present invention relates to field of surface treatment, and in particular to a kind of hub surface pre-treating technology.
Background technique
The hub bearing of car goes over most to be to use single-row tapered roller or ball bearing in pairs.With the hair of technology
Exhibition, car widely use car hub unit, and the use scope and usage amount of hub-bearing unit are growing, when complete
At needing to clean up emulsion, greasy dirt, aluminium skimmings and the other impurity etc. that are sticked to hub workpiece surface after wheel hub turning process,
Also hub surface is handled simultaneously so that it is stronger in conjunction with coating, but existing method to hub surface at
Reason, obtained performance is not able to satisfy the demand of existing wheel hub, however, automobile wheel hub surface in the prior art is not smooth enough,
Poor corrosion resistance, service life is shorter, and automobile wheel hub surface treatment process is complex, improves production cost, is this this hair
It is bright to propose a kind of hub surface pre-treating technology.
Summary of the invention
In view of the above problems, the invention proposes a kind of hub surface pre-treating technology, wheel hub can be effectively improved
Surface property has the degreasing effect of hub surface and remarkably promotes；While enhancing hub surface glossiness and activity, increase
Hub surface asperity, so that hub surface can be combined with the technique of spray paint later, enhancing wheel hub coating and wheel
Binding force between hub surface enhances the corrosion resistance of surface wheel hub, can solve the problems, such as that dope layer is easy to fall off, service life is short.
In order to achieve the above purpose, the following technical solution is employed by the present invention：
A kind of hub surface pre-treating technology, includes the following steps：
(1) hot water wash：Wheel hub is placed in rinsing bowl, with hot-water soak wheel hub, after immersion, then is wiped and is taken turns with brush
Aluminium skimmings, the dust on hub surface etc.；
(2) grease removal is handled：Wheel hub is placed in rinsing bowl, is soaked in wheel hub in degreasing agent, and is ultrasonically treated, is surpassed
After sound, wheel hub is taken out, hub surface is sprayed using degreasing agent, repeat spray 2~3 times, used again after spray
Hot water is rinsed hub surface, repeatedly rinses, to wash away the remaining degreasing agent of hub surface；
(3) pickling processes：The oxidation film for removing hub surface by acidic cleaning solution in rinsing bowl, is used after pickling
Hot water is rinsed hub surface, repeatedly rinses, to wash away the remaining acidic cleaning solution of hub surface；
(4) chromium-free deactivation is handled：Chromium-free deactivation processing is carried out to hub surface by chromium-free passivation liquid in rinsing bowl；
(5) pure water is washed：By chromium-free deactivation, treated that wheel hub is placed in rinsing bowl, repeats to be cleaned multiple times with pure water,
Remove the chromium-free passivation liquid of hub surface；
Preferably, hot water temperature is 50~75 DEG C in the step (1), and soaking time is 10~20min.
Preferably, degreasing agent described in the step (2) is mixed by water, concentrated type cleaning agent and surfactant, lye
Liquid, wherein lye is the potassium hydroxide solution of 1~3wt%.
Preferably, the power of step (2) ultrasound is 450~600W, and the time is 10~20min.
Preferably, the hot water temperature in the step (2) and step (3) is 45~55 DEG C, sprays and is：0.1~
0.2MPa, washing time are 1~2min.
Preferably, the aqueous sulfuric acid that acidic cleaning solution is 2~3.5wt% in the step (3), pickling soaking time are
10~15min.
Due to using above-mentioned technical solution, the beneficial effects of the invention are as follows：
(1) surface pretreatment process that the present invention uses can effectively improve hub surface performance, coordinated ultrasonic wave
Processing can make degreasing agent have the degreasing effect of hub surface and remarkably promote；Hot water cleaning after grease removal, acid etching, increases
Intermolecular mobility not only has cleaning residual medicament, avoid adversely affecting subsequent technique it is outer, after also effectively rinsing point
Grease after solution.
(2) not only effectively can by the processing enhancing hub surface glossiness and activity, pickling processes of present invention process
Enough increase hub surface asperity, so that hub surface can be combined with the technique of spray paint later, enhancing wheel hub is applied
Binding force between layer and hub surface, also improves the smoothness of hub surface, further enhances the corrosion-resistant of surface wheel hub
Property, the effective solution problem that dope layer is easy to fall off, service life is short.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described.Based on the embodiment of the present invention, the common skill in this field
Art personnel every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Embodiment 1：
A kind of hub surface pre-treating technology, includes the following steps：
(1) hot water wash：Wheel hub is placed in rinsing bowl, the hot-water soak wheel hub for being 60 DEG C with temperature, after impregnating 15min,
Again with aluminium skimmings, the dust etc. of brush erasing hub surface；
(2) grease removal is handled：Wheel hub is placed in rinsing bowl, is soaked in wheel hub living by water, concentrated type cleaning agent and surface
Property agent, 2wt% potassium hydroxide solution mixed liquor in, and carry out the ultrasonic treatment of 15min, ultrasonic power 500W, ultrasound
After, wheel hub is taken out, mixed liquor is reused and hub surface is sprayed, repeats spray 2~3 times, after spray, then is used
Temperature is that 50 DEG C of hot water is rinsed hub surface, flushing process by spraying as 0.1MPa, washing time be 1.2min into
Row, is repeatedly rinsed, to wash away the remaining mixed liquor of hub surface；
(3) pickling processes：In the aqueous sulfuric acid that wheel hub is impregnated to 3wt%, 12min is impregnated, the oxygen of hub surface is removed
Change film, with temperature be that 50 DEG C of hot water is rinsed hub surface after pickling, flushing process is by spraying as 0.1MPa, punching
The time is washed as 1.2min progress, is repeatedly rinsed, to wash away the remaining aqueous sulfuric acid of hub surface；
(4) chromium-free deactivation is handled：Chromium-free deactivation processing is carried out to hub surface by chromium-free passivation liquid in rinsing bowl；
(5) pure water is washed：By chromium-free deactivation, treated that wheel hub is placed in rinsing bowl, repeats to be cleaned multiple times with pure water,
Remove the chromium-free passivation liquid of hub surface；
Embodiment 2：
A kind of hub surface pre-treating technology, includes the following steps：
(1) hot water wash：Wheel hub is placed in rinsing bowl, the hot-water soak wheel hub for being 65 DEG C with temperature, after impregnating 20min,
Again with aluminium skimmings, the dust etc. of brush erasing hub surface；
(2) grease removal is handled：Wheel hub is placed in rinsing bowl, is soaked in wheel hub living by water, concentrated type cleaning agent and surface
Property agent, 1wt% potassium hydroxide solution mixed liquor in, and carry out the ultrasonic treatment of 20min, ultrasonic power 600W, ultrasound
After, wheel hub is taken out, mixed liquor is reused and hub surface is sprayed, repeats spray 2~3 times, after spray, then is used
Temperature is that 45 DEG C of hot water is rinsed hub surface, and for flushing process by spraying as 0.2MPa, washing time is that 1min is carried out,
It repeatedly rinses, to wash away the remaining mixed liquor of hub surface；
(3) pickling processes：In the aqueous sulfuric acid that wheel hub is impregnated to 2.5wt%, 13min is impregnated, hub surface is removed
Oxidation film with temperature is that 45 DEG C of hot water is rinsed hub surface after pickling, flushing process by spraying as 0.2MPa,
Washing time is 1min progress, is repeatedly rinsed, to wash away the remaining aqueous sulfuric acid of hub surface；
(4) chromium-free deactivation is handled：Chromium-free deactivation processing is carried out to hub surface by chromium-free passivation liquid in rinsing bowl；
(5) pure water is washed：By chromium-free deactivation, treated that wheel hub is placed in rinsing bowl, repeats to be cleaned multiple times with pure water,
Remove the chromium-free passivation liquid of hub surface；
Embodiment 3：
A kind of hub surface pre-treating technology, includes the following steps：
(1) hot water wash：Wheel hub is placed in rinsing bowl, the hot-water soak wheel hub for being 70 DEG C with temperature, after impregnating 10min,
Again with aluminium skimmings, the dust etc. of brush erasing hub surface；
(2) grease removal is handled：Wheel hub is placed in rinsing bowl, is soaked in wheel hub living by water, concentrated type cleaning agent and surface
Property agent, 1.5wt% potassium hydroxide solution mixed liquor in, and carry out the ultrasonic treatment of 12min, ultrasonic power 450W surpasses
After sound, wheel hub is taken out, mixed liquor is reused and hub surface is sprayed, repeats spray 2~3 times, after spray, then
It is that 50 DEG C of hot water is rinsed hub surface with temperature, flushing process is by spraying as 0.2MPa, washing time 1.5min
It carries out, repeatedly rinses, to wash away the remaining mixed liquor of hub surface；
(3) pickling processes：In the aqueous sulfuric acid that wheel hub is impregnated to 3.5wt%, 10min is impregnated, hub surface is removed
Oxidation film with temperature is that 50 DEG C of hot water is rinsed hub surface after pickling, flushing process by spraying as 0.2MPa,
Washing time is 1.5min progress, is repeatedly rinsed, to wash away the remaining aqueous sulfuric acid of hub surface；
(4) chromium-free deactivation is handled：Chromium-free deactivation processing is carried out to hub surface by chromium-free passivation liquid in rinsing bowl；
(5) pure water is washed：By chromium-free deactivation, treated that wheel hub is placed in rinsing bowl, repeats to be cleaned multiple times with pure water,
Remove the chromium-free passivation liquid of hub surface；
Embodiment 4：
A kind of hub surface pre-treating technology, includes the following steps：
(1) hot water wash：Wheel hub is placed in rinsing bowl, the hot-water soak wheel hub for being 75 DEG C with temperature, after impregnating 12min,
Again with aluminium skimmings, the dust etc. of brush erasing hub surface；
(2) grease removal is handled：Wheel hub is placed in rinsing bowl, is soaked in wheel hub living by water, concentrated type cleaning agent and surface
Property agent, 3wt% potassium hydroxide solution mixed liquor in, and carry out the ultrasonic treatment of 10min, ultrasonic power 500W, ultrasound
After, wheel hub is taken out, mixed liquor is reused and hub surface is sprayed, repeats spray 2~3 times, after spray, then is used
Temperature is that 45 DEG C of hot water is rinsed hub surface, and for flushing process by spraying as 0.1MPa, washing time is that 2min is carried out,
It repeatedly rinses, to wash away the remaining mixed liquor of hub surface；
(3) pickling processes：In the aqueous sulfuric acid that wheel hub is impregnated to 2wt%, 14min is impregnated, the oxygen of hub surface is removed
Change film, with temperature be that 45 DEG C of hot water is rinsed hub surface after pickling, flushing process is by spraying as 0.1MPa, punching
The time is washed as 2min progress, is repeatedly rinsed, to wash away the remaining aqueous sulfuric acid of hub surface；
(4) chromium-free deactivation is handled：Chromium-free deactivation processing is carried out to hub surface by chromium-free passivation liquid in rinsing bowl；
(5) pure water is washed：By chromium-free deactivation, treated that wheel hub is placed in rinsing bowl, repeats to be cleaned multiple times with pure water,
Remove the chromium-free passivation liquid of hub surface；
Embodiment 5：
A kind of hub surface pre-treating technology, includes the following steps：
(1) hot water wash：Wheel hub is placed in rinsing bowl, the hot-water soak wheel hub for being 50 DEG C with temperature, after impregnating 17min,
Again with aluminium skimmings, the dust etc. of brush erasing hub surface；
(2) grease removal is handled：Wheel hub is placed in rinsing bowl, is soaked in wheel hub living by water, concentrated type cleaning agent and surface
Property agent, 2.5wt% potassium hydroxide solution mixed liquor in, and carry out the ultrasonic treatment of 17min, ultrasonic power 550W surpasses
After sound, wheel hub is taken out, mixed liquor is reused and hub surface is sprayed, repeats spray 2~3 times, after spray, then
It is that 55 DEG C of hot water is rinsed hub surface with temperature, flushing process is by spraying as 0.2MPa, washing time 1.7min
It carries out, repeatedly rinses, to wash away the remaining mixed liquor of hub surface；
(3) pickling processes：In the aqueous sulfuric acid that wheel hub is impregnated to 2.5wt%, 15min is impregnated, hub surface is removed
Oxidation film with temperature is that 55 DEG C of hot water is rinsed hub surface after pickling, flushing process by spraying as 0.2MPa,
Washing time is 1.7min progress, is repeatedly rinsed, to wash away the remaining aqueous sulfuric acid of hub surface；
(4) chromium-free deactivation is handled：Chromium-free deactivation processing is carried out to hub surface by chromium-free passivation liquid in rinsing bowl；
(5) pure water is washed：By chromium-free deactivation, treated that wheel hub is placed in rinsing bowl, repeats to be cleaned multiple times with pure water,
Remove the chromium-free passivation liquid of hub surface；
Following table is that nave boss using after the surface pretreatment process of Examples 1 to 5 carries out corrosion resistance test and spray to nave boss
Adhesive force test is painted after paint, it is 0.5mol/L's that wherein corrosion resistance, which is to the nave boss surface spray concentration after surface pretreatment,
Nitric acid observes nave boss surface corrosion situation, as shown in table 1 after three days.
1 data statistics of table
Biao Ke get in synthesis, the wheel hub obtained through hub surface pre-treating technology of the present invention have good corrosion resistance,
And there is good combination dynamics with the surface coating material of wheel hub.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that：It still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of hub surface pre-treating technology, which is characterized in that include the following steps：
(1) hot water wash：Wheel hub is placed in rinsing bowl, with hot-water soak wheel hub, after immersion, then with brush wipes wheel hub table
Aluminium skimmings, the dust in face etc.；
(2) grease removal is handled：Wheel hub is placed in rinsing bowl, is soaked in wheel hub in degreasing agent, and is ultrasonically treated, ultrasound knot
Shu Hou is taken out wheel hub, is sprayed using degreasing agent to hub surface, repeats spray 2~3 times, reusable heat water after spray
Hub surface is rinsed, is repeatedly rinsed, to wash away the remaining degreasing agent of hub surface；
(3) pickling processes：The oxidation film for removing hub surface by acidic cleaning solution in rinsing bowl, uses hot water after pickling
Hub surface is rinsed, is repeatedly rinsed, to wash away the remaining acidic cleaning solution of hub surface；
(4) chromium-free deactivation is handled：Chromium-free deactivation processing is carried out to hub surface by chromium-free passivation liquid in rinsing bowl；
(5) pure water is washed：By chromium-free deactivation, treated that wheel hub is placed in rinsing bowl, repeats to be cleaned multiple times with pure water, removes
The chromium-free passivation liquid of hub surface.
2. hub surface pre-treating technology according to claim 1, which is characterized in that hot water temperature in the step (1)
It is 50~75 DEG C, soaking time is 10~20min.
3. hub surface pre-treating technology according to claim 1, which is characterized in that degreasing described in the step (2)
Agent is by water, concentrated type cleaning agent and surfactant, lye mixed liquor, and wherein lye is the potassium hydroxide solution of 1~3wt%.
4. hub surface pre-treating technology according to claim 1, which is characterized in that the power of step (2) ultrasound
For 450~600W, the time is 10~20min.
5. hub surface pre-treating technology according to claim 1, which is characterized in that in the step (2) and step (3)
Hot water temperature be 45~55 DEG C, spray and be：0.1~0.2MPa, washing time are 1~2min.
6. hub surface pre-treating technology according to claim 1, which is characterized in that acid cleaning in the step (3)
Liquid is the aqueous sulfuric acid of 2~3.5wt%, and pickling soaking time is 10~15min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534677.1A CN108866556A (en) | 2018-05-29 | 2018-05-29 | A kind of hub surface pre-treating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534677.1A CN108866556A (en) | 2018-05-29 | 2018-05-29 | A kind of hub surface pre-treating technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108866556A true CN108866556A (en) | 2018-11-23 |
Family
ID=64335446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810534677.1A Pending CN108866556A (en) | 2018-05-29 | 2018-05-29 | A kind of hub surface pre-treating technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701852A (en) * | 2018-12-27 | 2019-05-03 | 安徽银龙泵阀股份有限公司 | A kind of surface defect treatment process for water pump vane |
| CN110629233A (en) * | 2019-09-25 | 2019-12-31 | 秦皇岛艾科晟科技有限公司 | Surface treatment process before automobile hub powder spraying |
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| US20050245411A1 (en) * | 2004-05-03 | 2005-11-03 | Bo Yang | Methods and composition for cleaning and passivating fuel cell systems |
| CN103949388A (en) * | 2014-03-24 | 2014-07-30 | 宁波宝迪汽车部件有限公司 | Coating method of electric vehicle hub |
| CN104014504A (en) * | 2014-05-05 | 2014-09-03 | 无锡锦绣轮毂有限公司 | Hub surface pretreatment technology |
| CN107303551A (en) * | 2016-04-19 | 2017-10-31 | 大亚车轮制造有限公司 | The spraying method of crackle paint wheel hub |
-
2018
- 2018-05-29 CN CN201810534677.1A patent/CN108866556A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050245411A1 (en) * | 2004-05-03 | 2005-11-03 | Bo Yang | Methods and composition for cleaning and passivating fuel cell systems |
| CN103949388A (en) * | 2014-03-24 | 2014-07-30 | 宁波宝迪汽车部件有限公司 | Coating method of electric vehicle hub |
| CN104014504A (en) * | 2014-05-05 | 2014-09-03 | 无锡锦绣轮毂有限公司 | Hub surface pretreatment technology |
| CN107303551A (en) * | 2016-04-19 | 2017-10-31 | 大亚车轮制造有限公司 | The spraying method of crackle paint wheel hub |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701852A (en) * | 2018-12-27 | 2019-05-03 | 安徽银龙泵阀股份有限公司 | A kind of surface defect treatment process for water pump vane |
| CN110629233A (en) * | 2019-09-25 | 2019-12-31 | 秦皇岛艾科晟科技有限公司 | Surface treatment process before automobile hub powder spraying |
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