CN105239069A - Automobile hub surface treatment process - Google Patents
Automobile hub surface treatment process Download PDFInfo
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- CN105239069A CN105239069A CN201510716495.2A CN201510716495A CN105239069A CN 105239069 A CN105239069 A CN 105239069A CN 201510716495 A CN201510716495 A CN 201510716495A CN 105239069 A CN105239069 A CN 105239069A
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- wheel hub
- hub
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Abstract
The invention relates to the technical field of automobiles, in particular to an automobile hub surface treatment process. The automobile hub surface treatment process comprises the following steps that first step of first-time hot water washing, the second step of oil removing treatment, the third step of cleaning and drying, the fourth step of chromate-free passivation treatment, the fifth step of bottom powder spraying and curing, the sixth step of machining treatment, the seventh step of second-time paint spraying, the eighth step of vacuum plating, and the ninth step of transparent coating spraying. According to the hub coating powder spraying paint spraying technology, the performance of a hub can be improved, the technology is simple, and the coating effect is good. By means of medium powder spraying and curing, the flatness, the glassines, the hardness and the corrosion resistance of the surface of the hub are improved, the surface of the hub is sealed, and the bonding force of a vacuum coating is improved. Through the transparent coating and high attaching force of the vacuum coating, the glossiness, the hardness, the abrasion resistance and the corrosion resistance of the hub are improved. The automobile hub surface treatment process is simple and low in energy consumption. The hardness and the corrosion resistance of the manufactured hub are high.
Description
Technical field
The present invention relates to automobile technical field, particularly relate to a kind of automobile wheel hub surface treatment process.
Background technology
Manufacture in process at aluminium alloy wheel hub of vehicle, after completing wheel hub turning operation, need the emulsion being bonded at hub workpiece surface, greasy dirt, aluminium bits and other impurity etc. to clean up, and to ensure that hub surface is dry and comfortable, next procedure can be proceeded to, way in the past first directly sets up sprinkler head at the leading portion of wheel hub transfer limes, wheel hub washes away totally by ejection cold water or hot water, then sets up high-power heater and large blower at the back segment of wheel hub transfer limes and dried up by wheel hub.Existing matting is complicated, and cleaning performance is poor, can not meet the production requirement of wheel hub.
Aluminium alloy wheel hub mainly adopts the method for die casting to be shaped, its surface irregularity, and the defects such as mechanical workout rear surface is jagged, scuffing just need surface treatment.Present surface treatment has the methods such as application, water power plating, vacuum plating.Wherein application and water power plating are used more.Water power plating wheel hub has high brightness, the well surface quality such as wear-resisting, but there is a lot of problem in process of production in it: after (1) aluminium alloy wheel hub is shaped, surface irregularity, in order to the surface obtaining smooth high light is beneficial to plating well, just need very careful polishing, because wheel-type is complicated, this procedure time-consuming many, cost is high, labor condition is poor, blank utilization rate is low; (2) aluminium alloy belongs to difficult metallizing, and Pre-treatment before plating is strict, complicated operation; (3) consume a large amount of water resourcess in plating production process and produce a large amount of waste water and gas; (4) coating bottom zinc-copper nickel is made prime coat chromium and is made overlay coating, consumes a large amount of precious metals, and produces plurality of heavy metal waste water; (5) large to the destructiveness of environment, the difficulty of governance of the plating three wastes (waste water,waste gas and industrial residue) is large, cost is high and can not thoroughly effect a radical cure, this is international headache, the Electroplate Factory of a lot of developed country all transfers to developing country, the requirement of China in environment is also more and more higher, and a lot of big city all instead of water power plating with vacuum plating.
Summary of the invention
Technical problem to be solved by this invention is to provide
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of automobile wheel hub surface treatment process, comprises the following steps:
Step one, first time hot water wash process, washes down aluminium bits and the dust of hub surface in washing bath;
Step 2, oil removal treatment, with an organic solvent or dissolve the greasy dirt of removal of solvents hub surface;
Step 3, cleaning-drying, first carries out the process of second time hot water wash to wheel hub blank, then dries;
Step 4, chromium-free deactivation process, carries out chromium-free deactivation process by scavenging solution to hub surface in washing bath;
Step 5, spraying end powder and solidification;
Step 6, mechanical process, carries out mechanical process to wheel hub, polishes, make hub surface smooth to the wheel hub after spraying end powder;
Step 7, second time is sprayed paint process, again heats wheel hub at pretreatment line, and wheel hub is proceeded to painting line spray paint from processing line, has sprayed paint to be cured process successively to wheel hub afterwards;
Step 8, vacuum plating, by the wheel hub through above-mentioned process in vacuum chamber according to vacuum sputtering coating principle metallize coating;
Step 9, spraying Clear coating, spraying polyurethane propenoic acid ester photocureable sizing agent on the wheel hub after above-mentioned vacuum plating, increases the glossiness of wheel hub.
On the basis of technique scheme, the present invention can also do following improvement.
Further, in described step one, described first time hot water wash processing mode for adopting water pistol, automotive hub is sprayed, the temperature of water is 55-70 DEG C, sprays 0.1-0.3MPa, and spray time is 2.0-3.5min.
Further, in described step 2, oil removal treatment mode is that the scavenging solution adopting water, concentrated type clean-out system and tensio-active agent to mix successively sprays.
Further, in described step 5, powder and solidification at the bottom of described spraying comprise employing electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 200 DEG C of temperature.
Further, in described step 7, in described painting process, rifle is apart from 100-200mm, and the time of dusting is 30s, thicknesses of layers front >=50 μm, window >=50 μm, and the raw material that dusts is mute black powder.
Further, after described step 9 also through check processing: to wheel hub carry out successively paint film property detection, outward appearance detect and transient equilibrium detect.
The invention has the beneficial effects as follows: wheel hub application of the present invention is dusted lacquer spraying technique, wheel hub performance can be improved, technique is simple, painting effect is good, by blasting medium powder and solidification, increase the planeness of hub surface, glossiness, hardness, erosion resistance and closed hub surface, improve the bonding force of vacuum-coating; Clear coating, the sticking power of high vacuum coating, increases the glossiness of wheel hub, hardness, wear resistance and corrosion resistance; Concise in technology of the present invention, energy consumption is low, and the hardness of the wheel hub of making is high, erosion resistance is strong.
Accompanying drawing explanation
Fig. 1 is schema of the present invention;
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, the present invention includes following steps:
S01, first time hot water wash process, washes down aluminium bits and the dust of hub surface in washing bath;
S02, oil removal treatment, with an organic solvent or dissolve the greasy dirt of removal of solvents hub surface;
S03, cleaning-drying, first carries out the process of second time hot water wash to wheel hub blank, then dries;
S04, chromium-free deactivation process, carries out chromium-free deactivation process by scavenging solution to hub surface in washing bath;
S05, spraying end powder and solidification;
S06, mechanical process, carries out mechanical process to wheel hub, polishes, make hub surface smooth to the wheel hub after spraying end powder;
S07, second time is sprayed paint process, again heats wheel hub at pretreatment line, and wheel hub is proceeded to painting line spray paint from processing line, has sprayed paint to be cured process successively to wheel hub afterwards;
S08, vacuum plating, by the wheel hub through above-mentioned process in vacuum chamber according to vacuum sputtering coating principle metallize coating;
S09, spraying Clear coating, spraying polyurethane propenoic acid ester photocureable sizing agent on the wheel hub after above-mentioned vacuum plating, increases the glossiness of wheel hub.
In described S01, described first time hot water wash processing mode for adopting water pistol, automotive hub is sprayed, the temperature of water is 55-70 DEG C, sprays 0.1-0.3MPa, and spray time is 2.0-3.5min.
In described S02, oil removal treatment mode is adopt the scavenging solution of water, concentrated type clean-out system and tensio-active agent mixing to spray.
In described S05, powder and solidification at the bottom of described spraying comprise employing electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 200 DEG C of temperature.
In described S07, in described painting process, rifle is apart from 100-200mm, and the time of dusting is 30s, thicknesses of layers front >=50 μm, window >=50 μm, and the raw material that dusts is mute black powder.
Also through check processing after described S09: carry out paint film property detection successively to wheel hub, outward appearance detects and transient equilibrium detects.
The invention has the beneficial effects as follows: wheel hub application of the present invention is dusted lacquer spraying technique, wheel hub performance can be improved, technique is simple, painting effect is good, by blasting medium powder and solidification, increase the planeness of hub surface, glossiness, hardness, erosion resistance and closed hub surface, improve the bonding force of vacuum-coating; Clear coating, the sticking power of high vacuum coating, increases the glossiness of wheel hub, hardness, wear resistance and corrosion resistance; Concise in technology of the present invention, energy consumption is low, and the hardness of the wheel hub of making is high, erosion resistance is strong.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an automobile wheel hub surface treatment process, is characterized in that, comprises the following steps:
Step one, first time hot water wash process, washes down aluminium bits and the dust of hub surface in washing bath;
Step 2, oil removal treatment, with an organic solvent or dissolve the greasy dirt of removal of solvents hub surface;
Step 3, cleaning-drying, first carries out the process of second time hot water wash to wheel hub blank, then dries;
Step 4, chromium-free deactivation process, carries out chromium-free deactivation process by scavenging solution to hub surface in washing bath;
Step 5, spraying end powder and solidification;
Step 6, mechanical process, carries out mechanical process to wheel hub, polishes, make hub surface smooth to the wheel hub after spraying end powder;
Step 7, second time is sprayed paint process, again heats wheel hub, wheel hub is proceeded to painting line from pretreatment line and sprays paint at pretreatment line, has sprayed paint to be cured process successively to wheel hub afterwards;
Step 8, vacuum plating, by the wheel hub through above-mentioned process in vacuum chamber according to vacuum sputtering coating principle metallize coating;
Step 9, spraying Clear coating, spraying polyurethane propenoic acid ester photocureable sizing agent on the wheel hub after above-mentioned vacuum plating, increases the glossiness of wheel hub.
2. a kind of automobile wheel hub surface treatment process according to claim 1, it is characterized in that, in described step one, described first time, hot water wash processing mode sprayed automotive hub for adopting water pistol, the temperature of water is 55-70 DEG C, spray 0.1-0.3MPa, spray time is 2.0-3.5min.
3. a kind of automobile wheel hub surface treatment process according to claim 1, is characterized in that, in described step 2, oil removal treatment mode is that the scavenging solution adopting water, concentrated type clean-out system and tensio-active agent to mix successively sprays.
4. a kind of automobile wheel hub surface treatment process according to claim 1 and 2, is characterized in that, in described step 5, powder and solidification at the bottom of described spraying comprise employing electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 200 DEG C of temperature.
5. a kind of automobile wheel hub surface treatment process according to claim 1 and 2, is characterized in that, in described step 7, in described painting process, rifle is apart from 100-200mm, and the time of dusting is 30s, thicknesses of layers front >=50 μm, window >=50 μm, the raw material that dusts is mute black powder.
6. a kind of automobile wheel hub surface treatment process according to claim 1 and 2, is characterized in that, also through check processing after described step 9: carry out paint film property detection successively to wheel hub, outward appearance detects and transient equilibrium detects.
Priority Applications (1)
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| CN201510716495.2A CN105239069A (en) | 2015-10-29 | 2015-10-29 | Automobile hub surface treatment process |
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| CN201510716495.2A CN105239069A (en) | 2015-10-29 | 2015-10-29 | Automobile hub surface treatment process |
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| CN105239069A true CN105239069A (en) | 2016-01-13 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750816A (en) * | 2016-03-12 | 2016-07-13 | 庄志杰 | Motor vehicle aluminum alloy wheel hub retreading repair method |
| CN106191851A (en) * | 2016-08-04 | 2016-12-07 | 浙江保康轮毂制造有限公司 | Aluminium alloy wheel hub of vehicle external coating nano material and process technique |
| CN106362930A (en) * | 2016-08-28 | 2017-02-01 | 开平市中铝实业有限公司 | Coating method of hub |
| CN106622898A (en) * | 2016-12-26 | 2017-05-10 | 广东迪生力汽配股份有限公司 | Spraying process for automobile hub |
| CN107190225A (en) * | 2017-04-25 | 2017-09-22 | 苏州罗普斯金铝业股份有限公司 | A kind of powder coating process of aluminium section bar |
| CN107486353A (en) * | 2017-07-21 | 2017-12-19 | 中车青岛四方机车车辆股份有限公司 | A kind of paint line for wheel and axletree |
| CN108546910A (en) * | 2018-03-15 | 2018-09-18 | 中信戴卡股份有限公司 | A kind of method wheel hub ageing-resistant plated film and form the protective film |
| CN109848009A (en) * | 2019-01-23 | 2019-06-07 | 浙江飞剑科技有限公司 | A kind of stainless-steel vacuum vessel surface processing method of band solid cloth sense |
| CN111660067A (en) * | 2020-06-03 | 2020-09-15 | 宁波自由者汽车部件有限公司 | Hub machining method |
| CN112170134A (en) * | 2020-10-20 | 2021-01-05 | 依合斯工程塑胶（上海）有限公司 | Technological method for manufacturing hub glue spraying by polyurethane roller |
| CN114798382A (en) * | 2022-03-23 | 2022-07-29 | 江苏润旺机械制造有限公司 | Silicon-based material coating production process for metal corrugated pipe |
| CN115041918A (en) * | 2021-03-09 | 2022-09-13 | 中央精机株式会社 | Method for manufacturing a wheel |
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| CN103373171A (en) * | 2012-04-24 | 2013-10-30 | 台山市国际交通器材配件有限公司 | Decorating wheel hub and manufacturing method thereof |
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| US6068890A (en) * | 1996-07-31 | 2000-05-30 | Dr. Ing. H.C.F. Porsche Ag | Method for gloss coating articles |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750816A (en) * | 2016-03-12 | 2016-07-13 | 庄志杰 | Motor vehicle aluminum alloy wheel hub retreading repair method |
| CN106191851A (en) * | 2016-08-04 | 2016-12-07 | 浙江保康轮毂制造有限公司 | Aluminium alloy wheel hub of vehicle external coating nano material and process technique |
| CN106362930A (en) * | 2016-08-28 | 2017-02-01 | 开平市中铝实业有限公司 | Coating method of hub |
| CN106622898A (en) * | 2016-12-26 | 2017-05-10 | 广东迪生力汽配股份有限公司 | Spraying process for automobile hub |
| CN107190225A (en) * | 2017-04-25 | 2017-09-22 | 苏州罗普斯金铝业股份有限公司 | A kind of powder coating process of aluminium section bar |
| CN107486353A (en) * | 2017-07-21 | 2017-12-19 | 中车青岛四方机车车辆股份有限公司 | A kind of paint line for wheel and axletree |
| CN108546910A (en) * | 2018-03-15 | 2018-09-18 | 中信戴卡股份有限公司 | A kind of method wheel hub ageing-resistant plated film and form the protective film |
| CN109848009A (en) * | 2019-01-23 | 2019-06-07 | 浙江飞剑科技有限公司 | A kind of stainless-steel vacuum vessel surface processing method of band solid cloth sense |
| CN109848009B (en) * | 2019-01-23 | 2022-02-15 | 浙江飞剑科技有限公司 | Surface treatment method for stainless steel vacuum container with three-dimensional cloth feeling |
| CN111660067A (en) * | 2020-06-03 | 2020-09-15 | 宁波自由者汽车部件有限公司 | Hub machining method |
| CN111660067B (en) * | 2020-06-03 | 2022-07-12 | 宁波自由者汽车部件有限公司 | Hub machining method |
| CN112170134A (en) * | 2020-10-20 | 2021-01-05 | 依合斯工程塑胶（上海）有限公司 | Technological method for manufacturing hub glue spraying by polyurethane roller |
| CN115041918A (en) * | 2021-03-09 | 2022-09-13 | 中央精机株式会社 | Method for manufacturing a wheel |
| CN115041918B (en) * | 2021-03-09 | 2023-09-01 | 中央精机株式会社 | Method for manufacturing a wheel |
| CN114798382A (en) * | 2022-03-23 | 2022-07-29 | 江苏润旺机械制造有限公司 | Silicon-based material coating production process for metal corrugated pipe |
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Application publication date: 20160113 |