CN105970242A - Cleaning technology for changing metal surface activity - Google Patents
Cleaning technology for changing metal surface activity Download PDFInfo
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- CN105970242A CN105970242A CN201610340119.2A CN201610340119A CN105970242A CN 105970242 A CN105970242 A CN 105970242A CN 201610340119 A CN201610340119 A CN 201610340119A CN 105970242 A CN105970242 A CN 105970242A
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- 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
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
Abstract
The invention discloses a cleaning technology for changing metal surface activity. The cleaning technology comprises the carbon-hydrogen cleaning procedure, the vacuum bathing and drying procedure and the vacuum gas phase cleaning procedure. In the vacuum gas phase cleaning procedure, under the condition that the vacuum degree is smaller than 4 Pa, a workpiece is placed inside, inorganic gas is led in, the inorganic gas is decomposed into ions rotating at a high speed under the action of a radio-frequency power supply to impact on the surface of the workpiece, and vacuum gas phase cleaning is formed, wherein the vacuum gas phase cleaning time ranges from 180 s to 360 s, and the gas inlet rate of the inorganic gas ranges from 100 mL/min to 400 mL/min. In vacuum gas phase cleaning, the ions rotating at a high speed impact on the surface of the workpiece, and therefore the surface activity of the surface of the workpiece is changed; a rough face invisible to the naked eyes is formed on the surface of the workpiece, spraying, electroplating, anode machining, vacuum coating machining and other subsequent machining are facilitated, and meanwhile after machining, the surface layer adsorbability is high, and a surface layer is not likely to fall off.
Description
Technical field
The present invention relates to surface of the work cleaning field, particularly to a kind of cleaning changing metal surface activity.
Background technology
Traditional industrial work piece cleaning is that ultrasonic waves for cleaning ultrasonic pure water rinsing wide slow moving water-removal is dried, and be to ensure that the cleaning of workpiece is up to standard, ultrasonic waves for cleaning and ultrasonic pure water rinse stage often arrange the step of multiple repetition, with this, workpiece is cleaned the most repeatedly, and the abluent used mostly is aqueous cleaning agent, such as surfactant, inorganic acid alkali, but owing to the surface contaminant of different workpiece is different, in cleaning process, the control to each operation needs the finest.Additionally, use traditional industrial work piece cleaning, with abluent, workpiece is carried out surface clean owing to it is simple, although to working surface not produced corrosion and corrosion, the safest to cleaning material, but this cleaning method is often unfavorable for the following process of workpiece, such as spraying, plating, anode, vacuum coating etc., it cannot change the surface activity of workpiece, surface of the work is unable to reach requirement to the adsorptivity of material in spraying, plating, anode, vacuum coating, sprays, electroplates, anode, workpiece epidermis easily comes off after vacuum coating.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of cleaning changing metal surface activity, and this technique cleaning step is simple, while cleaning workpiece surface, it is also possible to change the surface activity of workpiece, improves the properties for follow of work.
In order to solve above-mentioned technical problem, the technical scheme is that, a kind of cleaning changing metal surface activity, including following operation:
Hydrocarbon cleaning, under the conditions of vacuum ultrasonic, is placed in throwing 480～720s in the hydrocarbon solution that temperature is 45～55 DEG C by workpiece, and wherein, the frequency of ultrasound wave is 28KHz, and ultrasound wave size is 60～100%, and vacuum is-75Kpa；
Vacuum bath is washed and is dried, it is divided into steam bath to wash and is vacuum dried two stages, first, under conditions of vacuum is-90Kpa, first workpiece is placed in hydrocarbon vapor and carries out steam bath and wash, the temperature of hydrocarbon vapor is 90～110 DEG C, the steam clean time is 15, completes after steam bath washes, and adjustment vacuum is-100Kpa, and temperature be 90～110 DEG C be dried 240～360s, complete vacuum drying；
Vacuum gas-phase cleans, under conditions of vacuum is less than 4Pa, workpiece is placed in one and is passed through inorganic gas, and inorganic gas resolves into the ion like striking work surface run up under the effect of radio-frequency power supply, formation vacuum gas-phase cleans, wherein, vacuum gas-phase scavenging period is 180～360s, and the air inflow of inorganic gas is 100～400mL.
Preferably, the inorganic gas in vacuum gas-phase matting is selected from but not limited to O2、H2、N2、Ar2。
Preferably, hydrocarbon cleaning operation includes hydrocarbon cleaning step and second time hydrocarbon cleaning step for the first time, process is under the conditions of vacuum ultrasonic, workpiece is placed in throwing 240～360s in the hydrocarbon solution that temperature is 45～55 DEG C, the frequency of ultrasound wave is 28KHz, ultrasound wave size is 60～100%, and vacuum is-75Kpa, and the hydrocarbon solution after hydrocarbon cleaning step flows to hydrocarbon cleaning step for the first time for the second time.
Preferably, being provided with Distillation recovery operation for the first time between hydrocarbon cleaning step and second time hydrocarbon cleaning step, Distillation recovery operation, for the first time hydrocarbon cleaning step, for the second time hydrocarbon cleaning step form loop.
Preferably, the recovery frequency of Distillation recovery operation is 8～10H/ time, distillation time: 360～600s, and the recovered liquid after distillation is back in second time hydrocarbon cleaning step.
Preferably, vacuum bath is washed and is divided into primary and backup vacuum bath to wash and be dried with drying process, first process is, and under conditions of vacuum is-90Kpa, is first placed in hydrocarbon vapor by workpiece and carries out steam bath and wash, the temperature of hydrocarbon vapor is 90～110 DEG C, the steam clean time is 15, completes after steam bath washes, and adjustment vacuum is-100Kpa, and temperature be 90～110 DEG C be dried 240～360s, complete vacuum drying.
Use technique scheme, by the ionic bombardment surface of the work that runs up in vacuum gas-phase cleaning, thus change the surface activity of surface of the work, the sightless matsurface of naked eyes is formed at surface of the work, be conducive to following process, as after spraying, plating, anode, vacuum coating etc., and processing, epidermis adsorptivity is strong, difficult drop-off.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of cleaning changing metal surface activity of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.At this it should be noted that be adapted to assist in for the explanation of these embodiments and understand the present invention, but it is not intended that limitation of the invention.As long as just can be mutually combined additionally, technical characteristic involved in each embodiment of invention described below does not constitutes conflict each other.
As shown in the figure, a kind of cleaning changing metal surface activity, including three operations, be followed successively by hydrocarbon cleaning, vacuum bath is washed and is dried and vacuum gas-phase cleaning, and wherein, hydrocarbon cleaning can arrange according to the pollution level of surface of the work and be repeated several times, hydrocarbon cleaning comprises twice hydrocarbon cleaning step in the present embodiment, i.e. flow process is as shown in drawings, and identical owing to repeating the implementation condition of step, below only the condition of single step is described in detail.
First/secondary hydrocarbon cleaning step, workpiece is placed in equipped with in the hydrocarbon cleaning groove of hydrocarbon solution, and bled by vacuum pump, form vacuum condition, vacuum is-75Kpa, send out device and transducer by ultrasound wave again ultrasound wave is converted into vibration and accesses in hydrocarbon cleaning groove, the frequency now controlling ultrasound wave is 28KHz, ultrasound wave size is 60～100%, by workpiece throwing 240～360s in hydrocarbon solution, by hydrocarbon solution and the dual function of ultrasound wave, thus complete the preliminary cleaning of surface of the work.And based on cost and the consideration of environmental protection, Distillation recovery operation is set between first time hydrocarbon cleaning step and second time hydrocarbon cleaning step.Twice hydrocarbon cleaning step forms loop with Distillation recovery operation, hydrocarbon solution in hydrocarbon cleaning step flows to Distillation recovery operation for the first time, and the hydrocarbon solution in second time hydrocarbon cleaning step flows in first time hydrocarbon cleaning step, hydrocarbon solution in Distillation recovery operation flows in second time hydrocarbon cleaning step, the recovery frequency of Distillation recovery operation is 8～10H/ time, distillation time: 360～600s.It is recovered by distillation the setting of technique, thus circulate in forming one, the hydrocarbon solution cleaning finished piece(s) for the first time in hydrocarbon cleaning step is recycled, reclaim through Distillation recovery technique and be back in the second hydrocarbon cleaning step, and the hydrocarbon solution in the second hydrocarbon cleaning step can supplement back in the first hydrocarbon cleaning step, on the one hand ensure that hydrocarbon solution obtain abundant, effectively utilize, on the other hand the hydrocarbon solution cleaning finished piece(s) first is recycled utilization, without discharging of waste liquid, reduce greatly cost.
Vacuum bath is washed and is divided into primary and backup vacuum bath to wash and be dried with drying process, all includes that two stages, respectively steam bath wash and are vacuum dried, and two stages are carried out in same dry slot.Steam bath wash into: in vacuum under conditions of-90Kpa, high temperature hydrocarbon vapor is imported inside dry slot, the temperature of hydrocarbon vapor is 90～110 DEG C, the steam clean time is 15s, this high-temperature steam is produced via steam generator by hydrocarbon solution, hydrocarbon solution derives from the shunting of the hydrocarbon solution reclaimed in Distillation recovery operation, also hydrocarbon solution storage device can be separately provided, should be in embodiment, consider the simplification of operation, hydrocarbon solution derives from the shunting of the hydrocarbon solution reclaimed in Distillation recovery operation, the pollutant can left over after removing hydrocarbon cleaning operation further by this steam.Complete i.e. to enter drying phase under vacuum after steam bath washes the stage, adjustment vacuum is-100Kpa, and under conditions of temperature is 90～110 DEG C, it is dried 240～360s, this baking temperature is that high temperature kerosene controls, but it is not limited to high temperature kerosene, also can be realized by other means, as long as the temperature in making dry slot controls at 90～110 DEG C.As shown in drawings, vacuum bath is washed with drying process, and primary vacuum bath is washed and is dried indicated by the solid line, and standby vacuum bath is washed and is represented by dashed line with dry.Primary and backup vacuum bath is washed and is dried use of staggering, when using primary vacuum bath to wash and be dried, the most standby vacuum bath is washed and is not run with being dried, which ensure that the safe handling of this operation, primary and backup vacuum bath is washed and can be carried out rotation with being dried, it is to avoid the generation of fault, even and if break down, bathe due to the vacuum of equipment sparing and wash and be dried, it is ensured that whole cleaning properly functioning.
Complete vacuum bath wash with drying process after, workpiece enters vacuum gas-phase matting and makees further to clean, this cleaning can change the surface activity of workpiece, improve the processing characteristics of workpieces in subsequent, such as spraying, plating, anode, vacuum coating etc., this vacuum gas-phase matting is carried out in the gas phase rinse bath closed, and in gas phase rinse bath, vacuum is 3Pa (vacuum be below 4Pa all can), again by inorganic gas, this inorganic gas can be selected from O2、H2、N2、Ar2One or more, can also be selected from other inorganic gas, after being passed through inorganic gas, by the effect of radio-frequency power supply, inorganic gas is resolved into the ion run up thus striking work surface, form the sightless matsurface of naked eyes at surface of the work, be conducive to following process, as after spraying, plating, anode, vacuum coating etc., and processing, epidermis adsorptivity is strong, difficult drop-off.The scavenging period of this operation is 180～360s, and the feed rate of inorganic gas is 100～400mL/ minute.
For Zong He, advantages of the present invention is:
1, using the hydrocarbon solution of environmental protection as abluent, boiling point is high (about 200 DEG C), and volatilization is slow, can utilize by Full-automatic circulation Distillation recovery, the most only needs to add, and without discharging of waste liquid, cost is substantially reduced；
2, the inorganic gas used is (such as: O2、H2、N2、Ar2Deng), the material of reaction discharge is pollution-free harmless to air；
3, processing step is simplified, and stay in grade is easily-controllable, and once purged quality yield is more than 98%；
4, after the gas phase matting of this technique, change the activity of metal product surface, add surface adhesion force, beneficially the carrying out of later process such as spraying, plating, anode, vacuum coating etc.；
5, solve tradition aqueous cleaning agent to discharge greatly, pollute problem big, inferior.
Above in association with accompanying drawing, embodiments of the present invention are explained in detail, but the invention is not restricted to described embodiment.For a person skilled in the art, in the case of without departing from the principle of the invention and spirit, these embodiments are carried out multiple change, revises, replace and modification, still fall within protection scope of the present invention.
Claims (6)
1. the cleaning changing metal surface activity, it is characterised in that include following operation:
Hydrocarbon cleaning, under the conditions of vacuum ultrasonic, is placed in throwing 480～720s in the hydrocarbon solution that temperature is 45～55 DEG C by workpiece, and the frequency of ultrasound wave is 28KHz, and ultrasound wave size is 60～100%, and vacuum is-75Kpa；
Vacuum bath is washed and is dried, it is divided into steam bath to wash and is vacuum dried two stages, first, under conditions of vacuum is-90Kpa, first workpiece is placed in hydrocarbon vapor and carries out steam bath and wash, the temperature of hydrocarbon vapor is 90～110 DEG C, the steam clean time is 15, completes after steam bath washes, and adjustment vacuum is-100Kpa, and temperature be 90～110 DEG C be dried 240～360s, complete vacuum drying；
Vacuum gas-phase cleans, under conditions of vacuum is less than 4Pa, workpiece is placed in one and is passed through inorganic gas, and inorganic gas resolves into the ion like striking work surface run up under the effect of radio-frequency power supply, formation vacuum gas-phase cleans, described vacuum gas-phase scavenging period is 180～360s, and the feed rate of described inorganic gas is 100～400mL/ minute.
Cleaning the most according to claim 1, it is characterised in that: described inorganic gas is selected from but not limited to O2、H2、N2、Ar2。
Cleaning the most according to claim 1 and 2, it is characterized in that: described hydrocarbon cleaning operation includes hydrocarbon cleaning step and second time hydrocarbon cleaning step for the first time, process is under the conditions of vacuum ultrasonic, workpiece is placed in throwing 240～360s in the hydrocarbon solution that temperature is 45～55 DEG C, the frequency of ultrasound wave is 28KHz, ultrasound wave size is 60～100%, and vacuum is-75Kpa, and the hydrocarbon solution after described second time hydrocarbon cleaning step flows to hydrocarbon cleaning step for the first time.
Cleaning the most according to claim 3, it is characterized in that: being provided with Distillation recovery operation between hydrocarbon cleaning step and second time hydrocarbon cleaning step for the first time, Distillation recovery operation, for the first time hydrocarbon cleaning step, for the second time hydrocarbon cleaning step form loop.
Cleaning the most according to claim 4, it is characterised in that: the recovery frequency of described Distillation recovery operation is 8～10H/ time, and distillation time is 360～600s, and the recovered liquid after distillation is back in second time hydrocarbon cleaning step.
Cleaning the most according to claim 5, it is characterized in that: the bath of described vacuum is washed and is divided into primary and backup vacuum bath to wash and be dried with drying process, first process is, and under conditions of vacuum is-90Kpa, is first placed in hydrocarbon vapor by workpiece and carries out steam bath and wash, the temperature of hydrocarbon vapor is 90～110 DEG C, the steam clean time is 15, completes after steam bath washes, and adjustment vacuum is-100Kpa, and temperature be 90～110 DEG C be dried 240～360s, complete vacuum drying.
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| CN201610340119.2A CN105970242A (en) | 2016-05-20 | 2016-05-20 | Cleaning technology for changing metal surface activity |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733907A (en) * | 2016-12-12 | 2017-05-31 | 中核北方核燃料元件有限公司 | A kind of cleaning method of nuclear fuel element screen work band |
| CN106862216A (en) * | 2017-04-06 | 2017-06-20 | 深圳市鑫承诺环保产业股份有限公司 | It is a kind of for 3D optical glass, the high-precision cleaning of sapphire semiconductor |
| CN107020272A (en) * | 2017-04-06 | 2017-08-08 | 深圳市鑫承诺环保产业股份有限公司 | A kind of hydrocarbon liquid saponification cleaning |
| CN107030060A (en) * | 2017-04-06 | 2017-08-11 | 深圳市鑫承诺环保产业股份有限公司 | A kind of paraffin removal cleaning of bath article |
| CN107051967A (en) * | 2017-04-06 | 2017-08-18 | 深圳市鑫承诺环保产业股份有限公司 | A kind of high-precision cleaning for having a particulate matter requirement |
| CN107096744A (en) * | 2017-02-28 | 2017-08-29 | 深圳市鑫承诺环保产业股份有限公司 | A kind of high-precision cleaning of metal plastic component |
| CN107470253A (en) * | 2017-07-17 | 2017-12-15 | 深圳市鑫承诺环保产业股份有限公司 | Superfinishing cleaning before composite component PVD plated films |
| CN110408944A (en) * | 2019-09-10 | 2019-11-05 | 昆山市飞荣达电子材料有限公司 | A kind of cleaning metal surface method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505133A (en) * | 2011-09-29 | 2012-06-20 | 东莞市新球清洗科技有限公司 | Process for carrying out vacuum cleaning, oil removal and wax removal by modified hydrocarbon cleaner |
| CN104152934A (en) * | 2014-09-01 | 2014-11-19 | 深圳市鑫承诺科技有限公司 | Composite saponification and hydrocarbon cleaning technology |
| CN105290038A (en) * | 2015-11-06 | 2016-02-03 | 广东长盈精密技术有限公司 | Hydrocarbon washing method for mobile phone outer part |
| CN105543860A (en) * | 2015-12-29 | 2016-05-04 | 深圳市鑫承诺环保产业股份有限公司 | High-gloss fine-cleaning combined cleaning technology |
-
2016
- 2016-05-20 CN CN201610340119.2A patent/CN105970242A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505133A (en) * | 2011-09-29 | 2012-06-20 | 东莞市新球清洗科技有限公司 | Process for carrying out vacuum cleaning, oil removal and wax removal by modified hydrocarbon cleaner |
| CN104152934A (en) * | 2014-09-01 | 2014-11-19 | 深圳市鑫承诺科技有限公司 | Composite saponification and hydrocarbon cleaning technology |
| CN105290038A (en) * | 2015-11-06 | 2016-02-03 | 广东长盈精密技术有限公司 | Hydrocarbon washing method for mobile phone outer part |
| CN105543860A (en) * | 2015-12-29 | 2016-05-04 | 深圳市鑫承诺环保产业股份有限公司 | High-gloss fine-cleaning combined cleaning technology |
Non-Patent Citations (1)
| Title |
|---|
| 张国柱 等: "等离子清洗技术", 《机电元件》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733907A (en) * | 2016-12-12 | 2017-05-31 | 中核北方核燃料元件有限公司 | A kind of cleaning method of nuclear fuel element screen work band |
| CN107096744A (en) * | 2017-02-28 | 2017-08-29 | 深圳市鑫承诺环保产业股份有限公司 | A kind of high-precision cleaning of metal plastic component |
| CN106862216A (en) * | 2017-04-06 | 2017-06-20 | 深圳市鑫承诺环保产业股份有限公司 | It is a kind of for 3D optical glass, the high-precision cleaning of sapphire semiconductor |
| CN107020272A (en) * | 2017-04-06 | 2017-08-08 | 深圳市鑫承诺环保产业股份有限公司 | A kind of hydrocarbon liquid saponification cleaning |
| CN107030060A (en) * | 2017-04-06 | 2017-08-11 | 深圳市鑫承诺环保产业股份有限公司 | A kind of paraffin removal cleaning of bath article |
| CN107051967A (en) * | 2017-04-06 | 2017-08-18 | 深圳市鑫承诺环保产业股份有限公司 | A kind of high-precision cleaning for having a particulate matter requirement |
| CN107470253A (en) * | 2017-07-17 | 2017-12-15 | 深圳市鑫承诺环保产业股份有限公司 | Superfinishing cleaning before composite component PVD plated films |
| CN110408944A (en) * | 2019-09-10 | 2019-11-05 | 昆山市飞荣达电子材料有限公司 | A kind of cleaning metal surface method |
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Application publication date: 20160928 |