CN112442693A - Efficient smokeless polishing process for aluminum profile - Google Patents
Efficient smokeless polishing process for aluminum profile Download PDFInfo
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- CN112442693A CN112442693A CN202011264129.5A CN202011264129A CN112442693A CN 112442693 A CN112442693 A CN 112442693A CN 202011264129 A CN202011264129 A CN 202011264129A CN 112442693 A CN112442693 A CN 112442693A
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- Prior art keywords
- polishing
- acid
- tank
- smokeless
- water
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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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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 72
- 238000007517 polishing process Methods 0.000 title claims abstract description 22
- 239000002253 acid Substances 0.000 claims abstract description 66
- 238000005498 polishing Methods 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 42
- 238000011084 recovery Methods 0.000 claims abstract description 37
- 238000005406 washing Methods 0.000 claims abstract description 34
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 20
- 238000002791 soaking Methods 0.000 claims abstract description 11
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 239000000126 substance Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000004576 sand Substances 0.000 abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 3
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000004043 dyeing Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/02—Light metals
- C23F3/03—Light metals with acidic solutions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/007—Heating the liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention provides an efficient smokeless polishing process for an aluminum profile, relates to the technical field of aluminum profile polishing, and solves the technical problems that the upper end of an aluminum material is easy to sand, the polishing effect is poor and the production cost is high in the conventional aluminum profile polishing process. The efficient smokeless polishing process for the aluminum profile comprises the steps of S1 fluoride-free oil removal, S2 vertical two-acid smokeless polishing, S3 water washing and acid water recovery, S4 neutralization soaking washing and S5 oxidation. The efficient smokeless polishing process for the aluminum profile can replace manual polishing, improves the production efficiency of the aluminum and aluminum alloy chemical polishing finished product, realizes large-batch, continuous, stable and automatic continuous production, recycles the acid water of the rinsing bath, reduces the consumption and emission of the production process, and reduces the cost.
Description
Technical Field
The invention relates to the technical field of aluminum profile polishing, in particular to an efficient smokeless polishing process for an aluminum profile.
Background
With the continuous popularization of the chemical polishing process in the aspect of surface pretreatment of aluminum and aluminum alloy, the chemical polishing process is not only an aluminum surface treatment technology widely adopted by small aluminum material factories, but also a chemical polishing treatment process with a high-efficiency decoration effect is adopted in a plurality of large aluminum material factories, so that the original traditional horizontal small-batch chemical polishing production line controlled by manpower can not meet the production of polished aluminum materials required by large aluminum material factories in large batches and large orders. The traditional horizontal chemical polishing process (comprising three-acid polishing and two-acid polishing) needs manual control operation of a professional chemical polishing process master, only can be performed in small-batch and intermittent production operation, large-batch continuous automatic production cannot be formed, the labor intensity of the master is high, personal subjective influence in the production process is large, the product quality is unstable, and the production cost is high.
Disclosure of Invention
The invention aims to provide an efficient smokeless polishing process for aluminum profiles, which ensures that generated gas diffuses and escapes as soon as possible by circulating flow of two-acid polishing tank liquid in a vertical polishing main tank and an overflow tank beside the vertical polishing main tank, avoids excessive foam generated during polishing reaction, ensures continuous mass uninterrupted production of aluminum profile two-acid polishing production as the two-acid polishing tank liquid circularly flows back and forth between the polishing main tank and the overflow tank, ensures continuous mass uninterrupted production of the aluminum profile two-acid polishing production as LW-38 two-acid smokeless polishing additive enables the aluminum profile to be polished and reacted in the tank liquid, a bright protective layer is formed on the surface of the aluminum to protect the surface of the aluminum material from being corroded and avoid the surface of the aluminum material from being sanded and pocked, and after neutralization and ash removal, spray washing and hot water soaking washing are carried out, so that the liquid level height of each washing tank after vertical two-acid smokeless polishing is improved, the acid liquor hidden in the clamp is guaranteed to be thoroughly washed, and the condition of dyeing acid flow marks in the subsequent dyeing process is avoided. The technical problems that the upper end of the aluminum material is easy to sand, the polishing effect is poor and the production cost is high in the conventional large vertical oxidation line two-acid smokeless polishing process of the aluminum material are solved. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention adopts the following technical scheme:
an efficient smokeless polishing process for aluminum profiles comprises the following steps:
s1 removing oil without fluorine;
s101, soaking the aluminum material in a fluorine-free oil removal groove for a certain time;
s102, washing the aluminum material with water;
s2 vertical two-acid smokeless polishing
S201, raising the temperature of the two-acid smokeless polishing tank liquid to a process range;
s202, setting a circulation frequency to ensure that the vertical two-acid smokeless polishing tank liquid is constantly circulated between the two-acid polishing tank and the overflow circulation tank;
s203, opening air to stir, and fully and uniformly stirring the tank liquor of the two main acid tanks;
s204, starting an acid-resistant pump, and pumping tank liquid overflowing from the vertical two-acid polishing tank to the overflow circulating tank back to the vertical two-acid smokeless polishing main tank;
s3 Water washing and recovery of acid Water
S301, setting the first recovery tank and the second recovery tank as static water washing, and setting the third recovery tank as flowing water washing;
s302, dripping for 1-2 min in a first recovery tank, wherein the temperature of acid water is 20-40 ℃;
s303, washing the materials in a second recovery tank for 1-3 min, and washing off acid liquor on the surface of the aluminum material as quickly as possible;
s304, adding new water after the specific gravity of the water in the second recovery tank reaches 1.2-1.3;
s305, flowing and washing in a third recovery tank for 3-5 min until acid liquor adhered to the surface of the aluminum material is washed clean;
s4 neutralization soaking
S401, putting the aluminum material into a neutralization light-emitting groove for neutralization and ash removal, wherein the ash removal time is 2-3 min;
s402, spraying and washing the aluminum material;
s403, soaking and washing the aluminum material in a hot water tank for 2-5 min, wherein the temperature of the hot water is 50-60 ℃, the PH value is 5-7;
s404, the obtained product enters a third recovery tank again to be washed by flowing water for 1-3 min;
s5 oxidation
S501, fluorine-free and nickel-free intermediate-temperature closed oxidation is carried out on the aluminum material.
Optionally or preferably, in the step S201, the two-acid smokeless polishing bath solution comprises 65% to 70% of 85% phosphoric acid, 28% to 33% of 98% sulfuric acid, 3% of LW-38 two-acid smokeless polishing additive, and 0.05% of sodium dodecyl sulfate surfactant.
Optionally or preferably, after the specific gravity of the water in the first recovery tank reaches 1.4 in the step S303, all the water is pumped into a recovery storage tank, and an air stirring device is further arranged in the first recovery tank.
Optionally or preferably, an air stirring device is arranged in the light neutralization and extraction tank in the step S401.
Optionally or preferably, the neutralization light-emitting groove is a chromium-free ammonia nitrogen-free environment-friendly neutralization light-emitting groove.
Based on the technical scheme, the following technical effects can be generated:
the efficient smokeless polishing process for the aluminum profile provided by the invention can improve the production efficiency of the chemical polishing finished product of aluminum and aluminum alloy. According to the invention, the two-acid polishing tank liquid circularly flows in the vertical polishing main tank and the overflow tank beside the vertical polishing main tank, so that generated gas is diffused and escaped as soon as possible, excessive foam generated in the polishing reaction is avoided, the two-acid polishing tank liquid circularly and repeatedly flows between the polishing main tank and the overflow tank, continuous mass uninterrupted production of aluminum profile two-acid polishing production is ensured, the LW-38 two-acid smokeless polishing additive enables an aluminum profile to form a bright protective layer on the surface of the aluminum profile in the polishing reaction of the aluminum profile in the tank liquid, the surface of the aluminum profile is protected from being corroded, sand and pock on the surface of the aluminum profile are avoided, spray water washing and hot water washing are carried out after neutralization and ash removal, the liquid level height of each tank after vertical two-acid smokeless polishing is improved, the acid liquid hidden in a clamp is completely washed away, and the condition of dyeing acid flow marks in the. The technical problems that the upper end of the aluminum material is easy to sand, the polishing effect is poor and the production cost is high in the conventional large vertical oxidation line two-acid smokeless polishing process of the aluminum material are solved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention provides an efficient smokeless polishing process for an aluminum profile, which comprises the following steps:
s1 removing oil without fluorine;
s101, soaking the aluminum material in a fluorine-free oil removal groove for a certain time;
s102, washing the aluminum material with water;
s2 vertical two-acid smokeless polishing
S201, raising the temperature of the two-acid smokeless polishing tank liquid to a process range;
s202, setting a circulation frequency to ensure that the vertical two-acid smokeless polishing tank liquid is constantly circulated between the two-acid polishing tank and the overflow circulation tank;
s203, opening air to stir, and fully and uniformly stirring the tank liquor of the two main acid tanks;
s204, starting an acid-resistant pump, and pumping tank liquid overflowing from the vertical two-acid polishing tank to the overflow circulating tank back to the vertical two-acid smokeless polishing main tank;
s3 Water washing and recovery of acid Water
S301, setting the first recovery tank and the second recovery tank as static water washing, and setting the third recovery tank as flowing water washing;
s302, dripping for 1-2 min in a first recovery tank, wherein the temperature of acid water is 20-40 ℃;
s303, washing the materials in a second recovery tank for 1-3 min, and washing off acid liquor on the surface of the aluminum material as quickly as possible;
s304, adding new water after the specific gravity of the water in the second recovery tank reaches 1.2-1.3;
s305, flowing and washing in a third recovery tank for 3-5 min until acid liquor adhered to the surface of the aluminum material is washed clean;
s4 neutralization soaking
S401, putting the aluminum material into a neutralization light-emitting groove for neutralization and ash removal, wherein the ash removal time is 2-3 min;
s402, spraying and washing the aluminum material;
s403, soaking and washing the aluminum material in a hot water tank for 2-5 min, wherein the temperature of the hot water is 50-60 ℃, the PH value is 5-7;
s404, the obtained product enters a third recovery tank again to be washed by flowing water for 1-3 min;
s5 oxidation
S501, fluorine-free and nickel-free intermediate-temperature closed oxidation is carried out on the aluminum material.
In an alternative embodiment, the two-acid smokeless polishing bath solution in step S201 is composed of 85% phosphoric acid 65-70%, 98% sulfuric acid 28-33%, LW-38 two-acid smokeless polishing additive 3%, and sodium dodecyl sulfate surfactant 0.05%.
In an alternative embodiment, after the specific gravity of the water in the first recovery tank reaches 1.4 in step S303, all of the water is pumped into a recovery storage tank, and an air stirring device is further disposed in the first recovery tank.
In an alternative embodiment, an air stirring device is disposed in the light-emitting groove in step S401.
In an alternative embodiment, the neutralization light-emitting groove is a chromium-free ammonia nitrogen-free environment-friendly neutralization light-emitting groove.
As an optional implementation manner, in the step S202, the vertical two-acid smokeless polishing tank liquid constantly circulates between the two-acid polishing tank and the overflow circulation tank, and the circulation frequency is controlled, so that gas generated by reaction between the vertical upper-row aluminum material and the polishing tank liquid can be quickly diffused, and the phenomenon that excessive foam is accumulated to influence blanking polishing and influence production efficiency is avoided.
In an alternative embodiment, the LW-38 smokeless polishing additive in step S201 can form a bright protective layer on the surface of the aluminum when the aluminum material undergoes a polishing reaction in the bath solution, so as to avoid inconsistent polishing effects at two ends of the aluminum material due to too long exposure time of the aluminum material in the air.
Claims (5)
1. An efficient smokeless polishing process for aluminum profiles is characterized in that: the method comprises the following steps:
s1 removing oil without fluorine;
s101, soaking the aluminum material in a fluorine-free oil removal groove for a certain time;
s102, washing the aluminum material with water;
s2 vertical two-acid smokeless polishing
S201, raising the temperature of the two-acid smokeless polishing tank liquid to a process range;
s202, setting a circulation frequency to ensure that the vertical two-acid smokeless polishing tank liquid is constantly circulated between the two-acid polishing tank and the overflow circulation tank;
s203, opening air to stir, and fully and uniformly stirring the tank liquor of the two main acid tanks;
s204, starting an acid-resistant pump, and pumping tank liquid overflowing from the vertical two-acid polishing tank to the overflow circulating tank back to the vertical two-acid smokeless polishing main tank;
s3 Water washing and recovery of acid Water
S301, setting the first recovery tank and the second recovery tank as static water washing, and setting the third recovery tank as flowing water washing;
s302, dripping for 1-2 min in a first recovery tank, wherein the temperature of acid water is 20-40 ℃;
s303, washing the materials in a second recovery tank for 1-3 min, and washing off acid liquor on the surface of the aluminum material as quickly as possible;
s304, adding new water after the specific gravity of the water in the second recovery tank reaches 1.2-1.3;
s305, flowing and washing in a third recovery tank for 3-5 min until acid liquor adhered to the surface of the aluminum material is washed clean;
s4 neutralization soaking
S401, putting the aluminum material into a neutralization light-emitting groove for neutralization and ash removal, wherein the ash removal time is 2-3 min;
s402, spraying and washing the aluminum material;
s403, soaking and washing the aluminum material in a hot water tank for 2-5 min, wherein the temperature of the hot water is 50-60 ℃, the PH value is 5-7;
s404, the obtained product enters a third recovery tank again to be washed by flowing water for 1-3 min;
s5 oxidation
S501, fluorine-free and nickel-free intermediate-temperature closed oxidation is carried out on the aluminum material.
2. The efficient smokeless polishing process for aluminum profiles as claimed in claim 1, is characterized in that: in the step S201, the components of the two-acid smokeless polishing tank solution comprise 65-70% of 85% phosphoric acid, 28-33% of 98% sulfuric acid, 3% of LW-38 two-acid smokeless polishing additive and 0.05% of sodium dodecyl sulfate surfactant.
3. The efficient smokeless polishing process for aluminum profiles as claimed in claim 1, is characterized in that: and in the step S303, after the specific gravity of the water in the first recovery tank reaches 1.4, pumping the water into a recovery storage tank, wherein an air stirring device is also arranged in the first recovery tank.
4. The efficient smokeless polishing process for aluminum profiles as claimed in claim 1, is characterized in that: and an air stirring device is arranged in the neutralization light-emitting groove in the step S401.
5. The efficient smokeless polishing process for aluminum profiles as claimed in claim 1, is characterized in that: the neutralization light-emitting groove is a chromium-free ammonia nitrogen-free environment-friendly neutralization light-emitting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011264129.5A CN112442693A (en) | 2020-11-12 | 2020-11-12 | Efficient smokeless polishing process for aluminum profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011264129.5A CN112442693A (en) | 2020-11-12 | 2020-11-12 | Efficient smokeless polishing process for aluminum profile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112442693A true CN112442693A (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011264129.5A Pending CN112442693A (en) | 2020-11-12 | 2020-11-12 | Efficient smokeless polishing process for aluminum profile |
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| CN (1) | CN112442693A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862705A (en) * | 2015-04-16 | 2015-08-26 | 河南三原色环保科技有限公司 | Zero draining and recycling process of aluminum and aluminum alloy chemical polishing waste liquid |
| CN105780007A (en) * | 2016-05-25 | 2016-07-20 | 佛山市海化表面处理科技有限公司 | Polishing bath of aluminium material and production technology of aluminium material |
| CN111041494A (en) * | 2019-12-30 | 2020-04-21 | 广东凤铝铝业有限公司 | Vertical aluminum oxidation system and production method thereof |
| CN111041493A (en) * | 2019-12-30 | 2020-04-21 | 广东凤铝铝业有限公司 | Vertical polishing production method for aluminum material |
-
2020
- 2020-11-12 CN CN202011264129.5A patent/CN112442693A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862705A (en) * | 2015-04-16 | 2015-08-26 | 河南三原色环保科技有限公司 | Zero draining and recycling process of aluminum and aluminum alloy chemical polishing waste liquid |
| CN105780007A (en) * | 2016-05-25 | 2016-07-20 | 佛山市海化表面处理科技有限公司 | Polishing bath of aluminium material and production technology of aluminium material |
| CN111041494A (en) * | 2019-12-30 | 2020-04-21 | 广东凤铝铝业有限公司 | Vertical aluminum oxidation system and production method thereof |
| CN111041493A (en) * | 2019-12-30 | 2020-04-21 | 广东凤铝铝业有限公司 | Vertical polishing production method for aluminum material |
Non-Patent Citations (1)
| Title |
|---|
| 陈巍等: "铝及铝合金大型立式自动化操控氧化线两酸无烟抛光工艺研究", 《铝加工》 * |
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Application publication date: 20210305 |