CN105839108B - Aluminium alloy free-floride is without the three-in-one zero diopter pre-treatment medicament recovery system of COD - Google Patents
Aluminium alloy free-floride is without the three-in-one zero diopter pre-treatment medicament recovery system of COD Download PDFInfo
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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
- 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
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
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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
- 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
- C23F1/00—Etching metallic material by chemical means
- C23F1/46—Regeneration of etching compositions
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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
- 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
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Abstract
Aluminium alloy free-floride is without the three-in-one zero diopter pre-treatment medicament recovery system of COD, the medicament recovery system includes three-in-one zero diopter slot and non-mobile water washing trough subsystem, the non-mobile water washing trough subsystem is integrally reversely arranged in series, and the beginning in its water flowing direction is equipped with water inlet, the water outlet of terminal is connected to the water supplement port of the three-in-one zero diopter slot by moisturizing single-pass valve gear.The present invention proposes a kind of aluminium alloy free-floride without the three-in-one zero diopter pre-treatment medicament recovery system of COD, and retention, reuse medicament reduce the unnecessary waste of medicament.
Description
Technical field
Before the present invention relates to aluminium material surface processing technology fields more particularly to aluminium alloy free-floride without the three-in-one zero diopter of COD
Manage medicament recovery system.
Background technique
Aluminium alloy zero diopter pre-treating technology has continued to use more than 100 years alkaline etching technique.Alkaline etching has aluminium consumption height, alkaline consumption height, alkali
Slag is more, technique is difficult to control, defect is more, high production cost, containing the drawbacks such as COD, environmental pollution be big, already recognized by industry.Mark
Shown in quasi- alkaline etching slot position layout drawing 2,1# degreasing tank, 4# alkaline etching slot, 7# neutralization chamber, 11# oxidation trough and 14# sealing of hole slot are work
Slot, each work nest match two rinsing bowls, add flowing washing to hopper, aoxidize pre-treatment and need 10 slot positions, wherein 4# alkaline etching
Slot is surface treatment groundwork slot.Aluminium can pack factory after 16 slot positions are handled, and complete anodized.
The purpose of alkaline etching is natural oxide film, further oil removing, increases aluminium brightness or dusting, removes line, does matt
Material.Following chemical reaction occurs for aluminium and Alkaline etchant when alkaline etching:
Al2O3+ 2NaOH=2NaAlO2+H2O (removing natural oxide film) (1)
Al+2NaOH+2H2O=2NaAlO2+3H2↑ (leveling, dusting) (2)
NaAlO2+2H2O=Al (OH)3↓+NaOH (recycling alkaline residue, regeneration lye) (3)
2Al(OH)3=Al2O3·3H2O (cell wall fouling, blocking pipeline) (4)
(2)+(3) formula, aluminium are in the nature what alkali slot reacted
2Al+6H2O=2Al (OH)3↓+3H2↑ (5)
I.e. aluminium is reacted with water, while recycling alkaline residue, renewable whole sodium hydroxide.By reaction equation (2)-(5), adopt at present
With two kinds of alkaline etching schemes, first is that the alkali collection scheme of complexing agent is not added, second is that plus the dusting of complexing agent go line scheme.
The alkaline etching technique that Japan uses, general alkaline etching slot not doping carry out alkali collection using Bayer process.4# slot is matched
Standby slag pumping system, when free alkali control is when 60g/L, aluminium ion concentration reach 30g/L, sodium metaaluminate resolve into aluminium hydroxide and
Sodium hydroxide, aluminium hydroxide sediment are handled by slag pumping system, and the clear liquid after scarfing cinder draws back 4# slot, realize alkali collection.
The alkaline etching technique that Italy uses utilizes polyhydroxy chemical combination in alkaline etching slot doping, such as sorbierite, Portugal's sodium
Aluminium ion, reaction equation is complexed in secondary alcohol groups CHOH in object are as follows:
C6H14O6+3NaAlO2=Al3C6H11O9+ 3NaOH (sorbierite complexing aluminium ion) (6)
3NaC6H11O7+NaAlO2+2H2O=Al (C6H11O7)3+ 4NaOH (aluminium ion is complexed in Portugal's sodium) (7)
When the dissolution of aluminium and it is aluminum ions take balance out of when, aluminium ion concentration up to 80-120g/L, stablize, unclear by tank liquor
Slot.
The technique of Japan, due to using alkali collection, alkaline consumption is low, and good to clean, neutralization chamber is consumed relatively by preceding slot buck
It is few.But slag is taken out, aluminium consumption height, line is not removed, sand plane materiel cannot be done, aluminium stenosis easily ties alkali dirt.The technique of Italy does not have to take out
Slag；Since aluminium ion is higher, by viscous elasticity, the reaction speed of aluminium material surface is greater than the reaction speed of mechanical line bottom of trench, can go
Line can do sand plane materiel.But containing COD, viscosity is too high, the tank liquor taken out of is more, alkaline consumption is high, bad washing, water consume are high, neutralization chamber consumption
It is larger.In addition to a small number of producers such as the winged Aluminum in west, China's major part aluminum fabrication plant is omited using Italian technique, but in 1# slot and 7# slot
There is improvement.1# degreasing tank is generally added with the ammonium acid fluoride of 5-10g/L or so, nitre of the 7# neutralization chamber added with 30-50g/L or so
Acid, it is therefore an objective to which oil removing and ash disposal are more thorough.
Through last 100 years application, the drawbacks of alkaline etching technique, is completely exposed already.Therefore, acid etching process is on the basis of alkaline etching technique
On grow up, used nearly 20 year.
Especially emphasize today that cleaning is carried out production strictly in line with rules and regulations, this set technique there are following several respects needs to be greatly improved:
1, suggestion of process design is unreasonable.1# and 7# be highly acid tank liquor, 4# be strong basicity tank liquor, aluminium need to from strong acid to
Highly basic is handled from highly basic to strong acid again, although intermediate each setting twice rinsing bowl, also inevitable channelling, and the medicament of work nest
Consumption mutually；
2, complex process, slot position are more.10 slot positions, 3 work nests, 7 rinsing bowls are excessively numerous altogether before oxidation trough
It is miscellaneous；
3, effect is low.To pass through 10 slots before aluminium material oxidation, wherein 3 work nests will also occupy the reaction time, general one
It hangs material and is washed from 1# degreasing tank to 10# and need 25-30 minutes to hopper.Time-consuming, seriously constrains the production capacity of oxidation line；
4, work nest is more, and chemical consumption amount is big.1#, 4#, 7#, 11#, 14# work nest, total reagent consumption amount are 100-
120 kg/ton material, to handle the waste water containing these chemical agents, aluminum material factory wants the cost of Hua Geng great；
5, rinsing bowl is independent mutually, and water consumption is big.11 rinsing bowls, par wise irrelevance are divided into 5 groups, and 5 water inlets, 5 are arranged
The mouth of a river, total water consumption is 20.0 ton/ton materials or more, except in addition to water cost, the processing and discharge of these water all need additionally to pay
Cost；
6,1# slot is fluorine-containing, hampers waste water recycling；
7,1# and 7# slot contains ammonia nitrogen, and 4# slot contains COD, the difficulty of wastewater treatment is made to make the matter worse.Fluoride waste is unable to reuse,
It cannot be discharged again containing COD and ammonia nitrogen waste water, producer falls into the quagmire of processing fluorine, COD and ammonia nitrogen.
China is the water resource country that there is a serious shortage in the supply, and annual water shortage is about 400 billion cubic meters.But industrial production water resource benefit
Too low with efficiency, per GDP water consumption is five times of developed country or more；Restrict aluminium processing enterprise development bottleneck be water consumption too
Height, the water pollution of the toxic goods and materials such as the nickeliferous, fluorine especially therefore generated, phenol, ammonia nitrogen and COD.
The configuration of slot position as oxidation line, it is conflict that water-saving and pharmacy slot, which intersects consumption,.Water consumption is very little, function trough
Tank liquor may channelling, medicament consumes mutually.Traditional water-washing method as shown in Figure 2, it is water-saving to may cause channelling, increase medicament
Consumption, influences product quality, or even cause to stop production.High water consume is determined by the setting of whole oxidation line system.Configured in this way, mistake
It spends water-saving, is bound to cause the mutual channelling of each function trough.
The present invention is exactly directed to traditional alkaline etching complex process, work nest and rinsing bowl is too many, work efficiency is low, dosing is more,
The drawbacks of wastewater discharge is big, the cost of processing fluorine and ammonia nitrogen is too high and efficiency is too low, high rejection rate, that specially designs is a set of
Completely new aluminium horizontal light processing technique.
Summary of the invention
It is an object of the invention to propose a kind of aluminium alloy free-floride without the three-in-one zero diopter pre-treatment medicament recovery system of COD,
Retention, reuse medicament reduce the unnecessary waste of medicament.
To achieve this purpose, the present invention adopts the following technical scheme:
For aluminium alloy free-floride without the three-in-one zero diopter pre-treatment medicament recovery system of COD, the medicament recovery system includes three conjunctions
One zero diopter slot and non-mobile water washing trough subsystem, the non-mobile water washing trough subsystem is integrally reversely arranged in series, and its water flow
The beginning in dynamic direction is equipped with water inlet, and the water outlet of terminal is connected to the three-in-one zero diopter slot by moisturizing single-pass valve gear
Water supplement port.
Further description, the non-mobile water washing trough subsystem are provided with no less than three non-mobile water washing troughs, respectively
Differential concatenation is arranged between slot.
Further description, the non-mobile water washing trough subsystem include: the 2# non-mobile water washing trough of sequence arrangement, 3#
Non-mobile water washing trough and 4# non-mobile water washing trough；The 4# non-mobile water washing trough is provided with the water inlet.
Further description, the water supplement port and water outlet of each non-mobile water washing trough are respectively arranged at both ends, clearly
Wash water is flowed into from one end, and the downstream flow rinsing bowl in water flowing direction is flowed out to from the other end.
Further description, the water inlet and discharge outlet of the non-mobile water washing trough subsystem are respectively arranged at 4# and do not flow
Dynamic rinsing bowl and 2# non-mobile water washing trough, ejected wash water are filled into from 4# non-mobile water washing trough, are flowed into from 2# non-mobile water washing trough described
Three-in-one zero diopter slot.
Further description, the three-in-one zero diopter slot of 1# contain ferric trichloride, concentration 2-4g/L.
Further description, the three-in-one zero diopter slot of 1# contain hydrogen peroxide, concentration 8-12g/L.
Further description, the three-in-one zero diopter slot of 1# contain hydrochloric acid, concentration 55-75g/L.
Further description, the three-in-one zero diopter slot of 1# contain surfactant.
It should be noted that ferric ion solution can be for ferric nitrate, ferric bromide etc., preferably relatively safety and more stable
Ferric trichloride.
Beneficial effects of the present invention:
First, this technique has sufficiently drawn traditional alkaline etching using the lesson of fluorine-containing and COD chemicals, abandoned continue to use it is more
Nickel fluoride, ammonium acid fluoride, hydrofluoric acid and the reductive organic matter in year, make zero diopter technique free-floride without COD, so that enterprise be made thoroughly to put
It taken off hydrogen fluoride gas pollution workshop, endangered worker, corrosion equipment and the predicament for discharging fluorine and COD waste water；It is floride-free in waste water
It without COD, is sufficiently recycled for aluminum fabrication plant, cycling use of water, wastewater zero discharge solves maximum problem；
Second, this technique has drawn the lesson that traditional alkaline etching process function slot is too many, technique is too complicated, medicine consumption is too high, will
Oil removing, alkaline etching, the function of three slots of neutralization combine in a slot, and the unification of three slots eliminates 2 function troughs of original alkaline etching technique, medicament
Consumption is reduced to 40-60 kgs/tonne of material by 100-120 kgs/tonne of material of alkaline etching technique, uses 50% or more medicament less；
Third, this technique universality is strong, can produce zero diopter material and drawing material.Zero diopter aluminium material surface produced is without sand, nothing
It is grey, beautiful, the aluminium consumption and medicine consumption of traditional alkaline etching is greatly reduced.
As a kind of forward position technique of aluminum alloy surface processing, aluminium alloy free-floride is very big without the three-in-one slot zero diopter processing of COD
Ground improves aluminum alloy surface quality, is the replacement technology of existing conventional base etching technique, can efficiently solve aluminum alloy anode oxygen
Change the fluoride pollution of pre-treatment and the problem that COD is exceeded, realize that anodic oxidation line is significantly water-saving, greatly reduce enterprise's pollution treatment amount,
Production cost is reduced, effect is improved.
It should be noted that COD (Chemical Oxygen Demand) is COD, it is chemically
The amount for the reducing substances for needing to be oxidized in water sample is measured, is referred in waste water in the present invention, the object that can be aoxidized by strong oxidizer
The oxygen equivalent of matter (generally organic matter).
Detailed description of the invention
Fig. 1 is one embodiment of the present of invention slot position layout drawing；
Fig. 2 is the alkaline etching slot position arrangement of existing aluminum profile standard.
Wherein, the first valve 01, moisturizing single-pass valve gear 02.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, the present invention is made of the three-in-one zero diopter slot of 1#, tri- non-mobile water washing trough of 2#, 3#, 4#.Wherein, 1#
Three-in-one zero diopter slot and the washing trough of 2#, 3# and 4# non-mobile water form medicament recovery system；1#, 2#, 3#, 4# slot press differential concatenation
Setting, for step retention the three-in-one zero diopter slot of 1# medicament, 2#, 3# and 4# non-mobile water washing trough clean aluminium, retention medicament,
1# tank liquor position is supplemented, tap water enters from 4#, through 3#, 2#, after moisturizing single-pass valve gear 02, into 1# slot, to realize medicine
Agent retention, recycling and 1# slot supplement liquid level；
The production method of different aluminiums is as follows:
(1) zero diopter material
Aluminium is directly entered 1# slot, reacts 4-6 minutes, room temperature, drip 1 minute, then do not flow through 2#, 3#, 4# slot three
Rinsing bowl completes oxidation processes into subsequent technique.
(2) drawing material
Wire drawing aluminium is directly entered 1# slot, reacts 6-8 minutes, room temperature, drip 1 minute, then not through 2#, 3#, 4# slot three
Rinsing bowl is flowed, into subsequent technique, completes oxidation processes.
Further description, above-mentioned each slot working mechanism are as follows:
The three-in-one zero diopter slot of 1#
Consider to work under alkaline condition, the drawbacks of aluminium alloy reaction speed is too fast, and aluminium consumption is high, easy dusting, this slot is designed as
It is acid.After aluminium enters this slot, by galvanic principles, with fine aluminium mutually for anode, alloy is mutually cathode, hydrogen ion to alloy phase,
Acid ion is to fine aluminium phase shift.For this purpose, this slot had both been added with, solvability was strong, can go the trichlorine of natural oxide film, deburring
Change iron and hydrochloric acid, and hydrogen peroxide and sulfuric acid strong added with passivation ability, that aluminium surface can be aoxidized；Appropriate dissolution and passivation is flat
Weighing apparatus, just meets the production requirement of zero diopter and drawing material.
This slot is acid tank liquor, and function is degreasing, removes natural oxide film, deburring, adjustment aluminium alloy background color, dedusting；Slot
Liquid is acid solution, and drug concentration is high, is greater than 100g/L, pH value is low, less than 1；By being added with nitric acid, hydrochloric acid, hydrogen peroxide, three
Iron chloride and a small amount of surfactant after aluminium alloy enters this slot, react as the following formula:
Al2O3+ 6H+=2Al3++3H2O (dissolution natural oxide film) (8)
Al+3H+=Al3++3/2H2↑ (dissolution aluminium, deburring) (9)
Al+3Fe3+=Al3++3Fe2+(dissolution aluminium, deburring) (10)
2Al+3NO3=Al2O3+3NO2-(nitrate anion is passivated aluminium surface, cryogenic polishing) (11)
2Al+3H2O2=2AL (OH)3(hydrogen peroxide passivation aluminium surface, cryogenic polishing) (12)
NO2-+H2O2=NO3-+H2O (hydrogen peroxide oxidation nitrite anions maintains tank liquor to stablize) (13)
Fe2++H+=Fe3++1/2H2↑ (ferrous iron is oxidized, tank liquor is maintained to stablize) (14)
By (8) formula, natural oxide film is dissolved, aluminium is dissolved by (9) (10) formula, utilizes burr point discharge principle, aluminium alloy
Surface is different from the potential difference at burr tip, and burr dissolves in advance, achievees the purpose that deburring.H2Precipitation, vesicle surround oil
Pearl leaves aluminium surface layer and reaches oil removing purpose.By (11) (12) formula, strong oxidizer has passivation to aluminium, carries out low temperature throwing
Light.By the presence of (13) (14) formula strong acid and hydrogen peroxide, it is to maintain the stable key of tank liquor.
The not flowing groove of 2#, 3# and 4# tri-
1, clean aluminium: for 1# slot aluminium ion up to 150g/L or more, viscosity is very high.Scavenging period is 2# slot 3 minutes；3# slot
2 minutes；4# slot 1 minute；The thoroughly medicament that cleaning aluminium is taken out of；
2, retain medicament: three rinse baths retain step by step.The medicament that 1# slot is carried over, concentration is at terraced distribution；2# slot
Drug concentration is high, and 4# slot drug concentration is low；
3, recycle medicament, supplement 1# tank liquor position: in 1# slot, the evaporation and carry-over loss of medicament, liquid level constantly decline, need
Supplement liquid level；The first valve 01 being connected with water inlet is opened, tap water enters from 4# slot, 3#, 2# slot is flowed through, most afterwards through moisturizing
Single-pass valve gear 02 enters 1# slot, not only supplements liquid level, but also realize the recycling step by step of medicament.
Further description, the reagent combination and working index of the three-in-one zero diopter slot are as follows: ferric ion solution
2-4g/L, 50% hydrogen peroxide 8-12g/L, 30% hydrochloric acid 55-75g/L, 68% nitric acid 70-90g/L, nonylphenol polyoxyethylene ether
0.001g/L, excess water；Operating temperature is room temperature, and the processing time is zero diopter material 4-6 minutes, and drawing material 6-8 minutes, drip 1 divided
Clock；
It should be noted that ferric ion solution can be for ferric nitrate, ferric bromide etc., preferably relatively safety and more stable
Ferric trichloride.
Compared with common acids alkaline etching and sandblasting, the present invention has following major technological breakthrough:
1, the angle carried out production strictly in line with rules and regulations for the first time with modern environmental protection, energy conservation, emission reduction, consumption reduction, cleaning, is significantly changed, is set again
Count aluminium alloy anode oxide production line；
2, selection aluminum alloy surface meticulously handles chemical agent formula for the first time, thoroughly prevent the three-in-one slot of 1# it is fluorine-containing, containing COD
Ingredient, it is ensured that free-floride without COD, cost for wastewater treatment is greatly reduced；
3, the laying out slot positions that abandoning tradition technique is consumed mutually to alkali, again by alkali to acid, medicament by acid for the first time, using one
Pharmacy slot pre-treatment aluminium, channelling, water-saving do not save medicine；
4, it reduces function trough on a large scale for the first time, three function troughs of alkaline etching technique is reduced to one, medicine is greatly lowered
Consumption improves effect；
5, the medicament recovery system being made of the three-in-one zero diopter slot of 1# and the washing trough of 2#, 3# and 4# non-mobile water is set for the first time.
2#, 3# and 4# non-mobile water washing trough cleaning aluminium retain medicament step by step；4#, 3#, 2#, 1# slot differential concatenation, by 4# slot moisturizing,
Medicament, is recycled to 1# slot by reverse flow step by step, and medicine consumption is greatly reduced in 70% or more the medicament rate of recovery.
Aluminium alloy free-floride is run without treatment process in face of the three-in-one sand of COD and medicament recovery system, is each slot and is matched
The result of set system close fit.
The present invention takes 150L sump volume design simulation oxidation line, and each function trough is slotted by 100L, and parameters of bath control is as follows
Shown in each embodiment.
The three-in-one zero diopter material production of example 1 group-
The reagent combination and working index of each slot are as follows:
The three-in-one zero diopter slot of 1#: ferric trichloride, hydrogen peroxide, nitric acid, hydrochloric acid and nonylphenol polyoxyethylene ether according to the form below 1 add
Add, surplus is water；Operating temperature is room temperature, and the processing time is 5 minutes, drip 1 minute；
| Classification | Embodiment 1-1 | Embodiment 1-2 | Embodiment 1-3 |
| Ferric trichloride | 2g/L | 3g/L | 4g/L |
| Hydrogen peroxide (50%) | 10g/L | 10g/L | 10g/L |
| Nitric acid | 80g/L | 80g/L | 80g/L |
| Hydrochloric acid | 65g/L | 65g/L | 65g/L |
| Nonylphenol polyoxyethylene ether | 0.001g/L | 0.001g/L | 0.001g/L |
Table 1
2# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
3# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
4# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
Subsequent technique is carried out by existing standard alkaline etching slot, is connect its 8# flowing rinsing bowl and is started to pass through after washing (shown in Fig. 2)
Oxidation, carries out sealing of hole after oxidation, and finally washing is air-dried, packaging, is put in storage, and completes surface treatment.
Embodiment group 1 can be mass aluminum alloy chemically frosted material, and as ferric trichloride concentration increases, solution rate
Accelerate, the enhancing of deburring ability can suitably shorten the reaction time.
2 groups of embodiment-three-in-one zero diopter material production
The reagent combination and working index of each slot are as follows:
The three-in-one zero diopter slot of 1#: ferric bromide, hydrogen peroxide, nitric acid, hydrochloric acid and nonylphenol polyoxyethylene ether according to the form below 2 add,
Surplus is water；Operating temperature is room temperature, and the processing time is 5 minutes, drip 1 minute；
| Classification | Embodiment 2-1 | Embodiment 2-2 |
| Ferric bromide | 3g/L | 3g/L |
| Hydrogen peroxide (50%) | 8g/L | 12g/L |
| Nitric acid | 80g/L | 80g/L |
| Hydrochloric acid | 65g/L | 65g/L |
| Nonylphenol polyoxyethylene ether | 0.001g/L | 0.001g/L |
Table 2
2# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
3# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
4# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
Subsequent technique is carried out by existing standard alkaline etching slot, is connect its 8# flowing rinsing bowl and is started to pass through after washing (shown in Fig. 2)
Oxidation, carries out sealing of hole after oxidation, and finally washing is air-dried, packaging, is put in storage, and completes surface treatment.
Embodiment group 2 can be mass aluminum alloy chemically frosted material, can obtain from embodiment 2-1,2-2 and embodiment 1-2,
As hydrogen peroxide concentration increases, passivation ability is improved, and aluminium brightness increases.
3 groups of embodiment-three-in-one zero diopter material production
The reagent combination and working index of each slot are as follows:
The three-in-one zero diopter slot of 1#: ferric trichloride, hydrogen peroxide, nitric acid, hydrochloric acid and nonylphenol polyoxyethylene ether according to the form below 3 add
Add, surplus is water；Operating temperature is room temperature, and the processing time is 5 minutes, drip 1 minute；
| Classification | Embodiment 3-1 | Embodiment 3-2 | Embodiment 3-3 | Embodiment 3-4 |
| Ferric trichloride | 3g/L | 3g/L | 3g/L | 3g/L |
| Hydrogen peroxide (50%) | 10g/L | 10g/L | 10g/L | 10g/L |
| Nitric acid | 70g/L | 90g/L | 80g/L | 80g/L |
| Hydrochloric acid | 65g/L | 65g/L | 55g/L | 75g/L |
| Nonylphenol polyoxyethylene ether | 0.001g/L | 0.001g/L | 0.001g/L | 0.001g/L |
Table 3
2# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
3# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
4# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
Subsequent technique is carried out by existing standard alkaline etching slot, is connect its 8# flowing rinsing bowl and is started to pass through after washing (shown in Fig. 2)
Oxidation, carries out sealing of hole after oxidation, and finally washing is air-dried, packaging, is put in storage, and completes surface treatment.
Embodiment group 3 can be mass aluminum alloy chemically frosted material, can obtain from embodiment 3-1,3-2 volume embodiment 1-2,
As concentration of nitric acid increases, passivation ability is improved, and aluminium brightness increases；It can be obtained from embodiment 3-3,3-4 and embodiment 1-2, with
Concentration of hydrochloric acid increase, solvability improve, deburring ability enhancing.
4 groups of embodiment-three-in-one zero diopter material production
The reagent combination and working index of each slot are as follows:
The three-in-one zero diopter slot of 1#: ferric trichloride, hydrogen peroxide, nitric acid, hydrochloric acid and nonylphenol polyoxyethylene ether press embodiment 3-4
Ratio add, surplus is water；Operating temperature is room temperature, and the processing time is respectively 4,5,6 minutes, drip 1 minute；
2# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
3# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
4# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
Subsequent technique is carried out by existing standard alkaline etching slot, is connect its 8# flowing rinsing bowl and is started to pass through after washing (shown in Fig. 2)
Oxidation, carries out sealing of hole after oxidation, and finally washing is air-dried, packaging, is put in storage, and completes surface treatment.
Embodiment group 4 can illustrate that this technique is suitable for batch production aluminium horizontal finish；As aluminium reacts in tank liquor
The increase of time, thoroughly, deburring effect is more preferable for natural oxide film dissolution.
The three-in-one drawing material production of embodiment group 5-
The reagent combination and working index of each slot are as follows:
The three-in-one zero diopter slot of 1#: ferric trichloride, hydrogen peroxide, nitric acid, hydrochloric acid and nonylphenol polyoxyethylene ether press embodiment 3-4
Ratio add, surplus is water；Operating temperature is room temperature, and the processing time is respectively 4 minutes or 8 minutes, drip 1 minute；
2# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
3# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
4# non-mobile water washing trough: washing 1 minute, drip 30 seconds；
Subsequent technique is carried out by existing standard alkaline etching slot, is connect its 8# flowing rinsing bowl and is started to pass through after washing (shown in Fig. 2)
Oxidation, carries out sealing of hole after oxidation, and finally washing is air-dried, packaging, is put in storage, and completes surface treatment.
Embodiment group 5 can illustrate that this technique is suitable for batch production aluminum alloy drawing material；As aluminium reacts in tank liquor
The increase of time, thoroughly, deburring effect is more preferable, and drawing material is brighter for natural oxide film dissolution
The test of embodiment 6- medicament recovery system
Open the first valve 01, tap water enters 4#, through 3#, 2#, most after through moisturizing single-pass valve gear 02 enter 1# slot, mend
Fill 1# tank liquor position；Realize medicament retention, recycling.1# tank liquor position can be supplemented；Realize medicament retention, recycling.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (8)
1. aluminium alloy free-floride is without the three-in-one zero diopter pre-treatment medicament recovery system of COD, it is characterised in that: the medicament recovery system
Including three-in-one zero diopter slot and non-mobile water washing trough subsystem, the non-mobile water washing trough subsystem is integrally reversely arranged in series,
And the beginning in its water flowing direction is equipped with water inlet, the water outlet of terminal is connected to described three by moisturizing single-pass valve gear and closes
The water supplement port of one zero diopter slot；The non-mobile water washing trough subsystem is provided with no less than three non-mobile water washing troughs, between each slot
Differential concatenation setting.
2. aluminium alloy free-floride according to claim 1 exists without the three-in-one zero diopter pre-treatment medicament recovery system of COD, feature
In: the non-mobile water washing trough subsystem includes: that the washing trough of 2# non-mobile water, the washing trough of 3# non-mobile water and the 4# of sequence arrangement do not flow
Dynamic rinsing bowl；The 4# non-mobile water washing trough is provided with the water inlet.
3. aluminium alloy free-floride according to claim 2 exists without the three-in-one zero diopter pre-treatment medicament recovery system of COD, feature
In: the water supplement port and water outlet of each non-mobile water washing trough are respectively arranged at both ends, and ejected wash water is flowed into from one end, and from
The other end flows out to the downstream flow rinsing bowl in water flowing direction.
4. aluminium alloy free-floride according to claim 3 exists without the three-in-one zero diopter pre-treatment medicament recovery system of COD, feature
In: the water inlet and discharge outlet of the non-mobile water washing trough subsystem are respectively arranged at the washing trough of 4# non-mobile water and 2# non-mobile water
Washing trough, ejected wash water are filled into from 4# non-mobile water washing trough, flow into the three-in-one zero diopter slot from 2# non-mobile water washing trough.
5. aluminium alloy free-floride according to claim 1 exists without the three-in-one zero diopter pre-treatment medicament recovery system of COD, feature
In: the three-in-one zero diopter slot contains ferric trichloride, concentration 2-4g/L.
6. aluminium alloy free-floride according to claim 1 exists without the three-in-one zero diopter pre-treatment medicament recovery system of COD, feature
In: the three-in-one zero diopter slot contains hydrogen peroxide, concentration 8-12g/L.
7. aluminium alloy free-floride according to claim 1 exists without the three-in-one zero diopter pre-treatment medicament recovery system of COD, feature
In: the three-in-one zero diopter slot contains hydrochloric acid, concentration 55-75g/L.
8. aluminium alloy free-floride according to claim 1 exists without the three-in-one zero diopter pre-treatment medicament recovery system of COD, feature
In: the three-in-one zero diopter slot contains surfactant.
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| CN108149310B (en) * | 2017-12-04 | 2019-10-01 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | A kind of recycling of oxidized aluminum alloy liquid and recrystallization cooling system and technique |
| CN108070892B (en) * | 2017-12-04 | 2019-10-01 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | A kind of oxidized aluminum alloy slot aluminium ion and retrieval of sulfuric acid and washing medicament retention system and technique |
| CN108130577B (en) * | 2017-12-04 | 2019-12-03 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | A kind of oxidized aluminum alloy liquid recycling configuration system compatible with slot is coloured and technique |
| CN107858731B (en) * | 2017-12-04 | 2019-10-01 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | A kind of oxidized aluminum alloy liquid recycling and cooling equipment crystallization removing system and technique |
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| CN1654714A (en) * | 2004-02-13 | 2005-08-17 | 熊映明 | Anode oxidation pretreatment method for aluminium alloy |
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