CN110042403A - Deashing agent and preparation method thereof, application and silico-aluminum process for deashing - Google Patents
Deashing agent and preparation method thereof, application and silico-aluminum process for deashing Download PDFInfo
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- CN110042403A CN110042403A CN201910287393.1A CN201910287393A CN110042403A CN 110042403 A CN110042403 A CN 110042403A CN 201910287393 A CN201910287393 A CN 201910287393A CN 110042403 A CN110042403 A CN 110042403A
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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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
- C25D5/44—Aluminium
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Abstract
The present invention relates to the process for deashing of a kind of deashing agent and preparation method thereof, application and silico-aluminum.According to the mass fraction, the raw material for preparing above-mentioned deashing agent includes: 1 part~100 parts of oxidant, 1 part~100 parts of fluorine-containing salts, 0.01 part~10 parts of stabilizer, 0.01 part~10 parts of catalyst, 0.01 part~10 parts of cosolvent, 0.01 part~10 parts of antisludging agent and 1 part~200 parts of water.The dedusting effect of above-mentioned deashing agent is good, the requirement of plating is met through deashing agent treated silico-aluminum, and above-mentioned deashing agent is to the less pollution of environment.
Description
Technical field
The present invention relates to technical field of aluminum alloy surface treatment, more particularly to a kind of deashing agent and preparation method thereof, answer
With the process for deashing with silico-aluminum.
Background technique
Aluminium alloy is in industry manufacture using very extensive a kind of nonferrous materials.For better shaping structures,
The element silicon of high level would generally be added in aluminium alloy, silicon itself is not easy to be removed by common pickling and alkaline etching.In order to remove
Silicon ash, the common system of tradition is three acid systems (nitric acid, phosphoric acid and hydrofluoric acid), which generates largely in use
Nitrogen oxides, hydrogen fluoride escaping gas and phosphorus-containing wastewater, cause great environmental pollution.For this purpose, also proposed both at home and abroad
The problem of some new systems, which does not use nitric acid, phosphoric acid and hydrofluoric acid, alleviate environmental pollution.But the system exists
A main problem be exactly that ash disposal performance is poor, influence subsequent electroplating process.
Summary of the invention
Based on this, it is necessary to provide that a kind of ash disposal performance is good and the lesser deashing agent of environmental pollution.
In addition, also providing the process for deashing of a kind of preparation method of deashing agent, application and silico-aluminum.
A kind of deashing agent, according to the mass fraction, the raw material for preparing the deashing agent include: 1 part~100 parts of oxidant, contain
1 part~100 parts of villiaumite, 0.01 part~10 parts of stabilizer, 0.01 part~10 parts of catalyst, 0.01 part of cosolvent~10 parts, scale inhibition
0.01 part~10 parts and 1 part~200 parts of water of agent.
The oxidant is in hydrogen peroxide, potassium peroxydisulfate, sodium peroxydisulfate and ammonium persulfate in one of the embodiments,
At least one.
The fluorine-containing salts are selected from sodium fluoride, potassium fluoride, lithium fluoride, ammonium fluoride, hydrogen fluoride in one of the embodiments,
At least one of ammonium, sodium bifluoride and potassium hydrogen fluoride.
The stabilizer is selected from ethylene glycol ethyl ether, butyl glycol ether, ethylene glycol phenyl ether, two in one of the embodiments,
At least one of ethylene glycol ethyl ether and butyl.
The catalyst is selected from containing molysite, manganese containing salt, contains nickel salt, containing mantoquita and containing silver salt in one of the embodiments,
At least one of.
The antisludging agent is selected from 1-hydroxy ethylidene-1,1-diphosphonic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid sodium, hydroxyl in one of the embodiments,
At least one of ethylene-diphosphonic acid potassium and 1-hydroxy ethylidene-1,1-diphosphonic acid ammonium.
The cosolvent is selected from ethylene glycol, propylene glycol, glycerine, 1,4-butanediol and 1 in one of the embodiments,
At least one of 2,4- butantriols.
In one of the embodiments, according to the mass fraction, the raw material for preparing the deashing agent includes: the oxidant 5
Part~50 parts, 5 parts~35 parts of the fluorine-containing salts, 0.05 part~2 parts of the stabilizer, 0.02 part~1 part of the catalyst, described
0.05 part~2 parts of cosolvent, 0.02 part~2 parts of the antisludging agent and 10 parts~60 parts of the water.
A kind of preparation method of deashing agent, includes the following steps:
Raw material is weighed by mass fraction, and the raw material includes: 1 part~100 parts of oxidant, 1 part~100 parts of fluorine-containing salts, steady
Determine 0.01 part~10 parts of agent, 0.01 part~10 parts of catalyst, 0.01 part~10 parts of cosolvent, 0.01 part~10 parts of antisludging agent and water
1 part~200 parts；And
By the oxidant, the fluorine-containing salts, the stabilizer, the catalyst, the cosolvent, the antisludging agent and
The water mixing, obtains deashing agent.
Above-mentioned deashing agent or the deashing agent being prepared by the preparation method of above-mentioned deashing agent are in silico-aluminum plating
Using.
A kind of process for deashing of silico-aluminum includes the following steps: to carry out ash disposal processing to silico-aluminum with deashing agent,
In, according to the mass fraction, the raw material for preparing the deashing agent includes: 1 part~100 parts of oxidant, 1 part~100 parts of fluorine-containing salts, steady
Determine 0.01 part~10 parts of agent, 0.01 part~10 parts of catalyst, 0.01 part~10 parts of cosolvent, 0.01 part~10 parts of antisludging agent and water
1 part~200 parts.
In one of the embodiments, in described the step of carrying out ash disposal processing to silico-aluminum with deashing agent, when ash disposal
Between be 30s~90s, ash disposal temperature be 15 DEG C~35 DEG C.
Use oxidant and fluorine-containing salt system in above-mentioned deashing agent, combined catalyst, stabilizer, antisludging agent and cosolvent
It uses, the silicon ash and indissoluble oxide that silico-aluminum exposes after pickling and alkaline etching can be removed, dedusting effect is good.Experiment card
It is bright, the requirement through treated silico-aluminum the meets subsequent plating of above-mentioned deashing agent.In traditional deashing agent by be added nitric acid,
The inorganic acids such as phosphoric acid, sulfuric acid improve dedusting effect, can generate the environmental pollutions such as hydrofluoric acid, nitrogen oxides in use
Biggish product.And above-mentioned deashing agent is cooperated using the catalyst of specific proportion, stabilizer, antisludging agent and cosolvent,
Under the premise of without using inorganic acid, dedusting effect equally can be improved.Therefore, above-mentioned deashing agent to the less pollution of environment and removes
Grey effect is good.
Detailed description of the invention
Fig. 1 is the process flow chart of the preparation method of the deashing agent of an embodiment.
Specific embodiment
To facilitate the understanding of the present invention, below in conjunction with specific embodiment to invention is more fully described.Tool
Preferred embodiment of the invention is given in body embodiment.But the invention can be realized in many different forms,
It is not limited to the examples described herein.On the contrary, purpose of providing these embodiments is makes to the disclosure
Understanding it is more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
Body embodiment purpose, it is not intended that in limitation the present invention.
The deashing agent of one embodiment, according to the mass fraction, the raw material for preparing deashing agent includes: oxidant 1 part~100
Part, 1 part~100 parts of fluorine-containing salts, 0.01 part~10 parts of stabilizer, 0.01 part~10 parts of catalyst, 0.01 part~10 parts of cosolvent,
0.01 part~10 parts and 1 part~200 parts of water of antisludging agent.
Specifically, oxidant is selected from least one of hydrogen peroxide, potassium peroxydisulfate, sodium peroxydisulfate and ammonium persulfate.
Fluorine-containing salts are in sodium fluoride, potassium fluoride, lithium fluoride, ammonium fluoride, ammonium acid fluoride, sodium bifluoride and potassium hydrogen fluoride
It is at least one.Oxide and fluorine-containing salts collective effect, can the impurity such as silica, foreign metal and metal oxide, make its from
Silico-aluminum matrix stripping, to remove grey black.
Stabilizer is alcohol ethers compound.Specifically, stabilizer is selected from ethylene glycol ethyl ether, butyl glycol ether, ethylene glycol phenyl
At least one of ether, diethylene glycol ether and butyl.Stabilizer, which is added, can stablize oxidizer catalytic decomposition production
Raw free radical reduces the rate of its selfdecomposition, extends the service life of deashing agent.
Catalyst is transition metal salt.Specifically, catalyst is selected from containing molysite, manganese containing salt, contains nickel salt, containing mantoquita and argentiferous
At least one of salt.Catalyst can catalytic oxidant reaction, keep oxidation stronger, further increase removing for deashing agent
Grey performance, it is ensured that dedusting effect.
Antisludging agent is selected from 1-hydroxy ethylidene-1,1-diphosphonic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid sodium, 1-hydroxy ethylidene-1,1-diphosphonic acid potassium and hydroxy ethylidene
At least one of di 2 ethylhexyl phosphonic acid ammonium.Organic phosphine acids antisludging agent can form stable network with various metals ions such as iron, copper, zinc
Object is closed, plays the role of scale inhibitor, further increases dedusting effect.
Cosolvent is polyalcohol.Specifically, cosolvent be selected from ethylene glycol, propylene glycol, glycerine, 1,4-butanediol and 1,2,
At least one of 4- butantriol.Cosolvent can help to dissolve the hydrophobic floating material generated during ash disposal, prevent its attachment
Dedusting effect is influenced in aluminum alloy surface, and the alcoholic extract hydroxyl group itself in cosolvent plays the role of certain stabilization oxidant.
Oxidant and fluorine-containing salts collective effect, silica, metal impurities, stabilizer being capable of Stable Oxygens in above-mentioned deashing agent
Agent decomposes the free radical generated, extends the service life of deashing agent, catalyst can catalytic oxidant oxidation reaction occurs, make
Oxidation is stronger, improves the ash disposal performance of deashing agent, and antisludging agent can further increase dedusting effect, and cosolvent can be molten
Hydrophobic floating material is solved, its attachment is prevented.Above-mentioned each raw material cooperates, can be improved the dedusting effect of deashing agent.
Water is distilled water, deionized water or tap water.
Further, according to the mass fraction, the raw material for preparing deashing agent includes: 5 parts~50 parts, 5 parts of fluorine-containing salts of oxidant
~35 parts, 0.05 part~2 parts of stabilizer, 0.02 part~1 part of catalyst, 0.05 part~2 parts of cosolvent, antisludging agent 0.02 part~2
Part and 10 parts~60 parts of water.The dedusting effect for the deashing agent being prepared using the raw material of above-mentioned number is more preferable.
Further, according to the mass fraction, the raw material for preparing deashing agent is made of following components: oxidant 1 part~100
Part, 1 part~100 parts of fluorine-containing salts, 0.01 part~10 parts of stabilizer, 0.01 part~10 parts of catalyst, 0.01 part~10 parts of cosolvent,
0.01 part~10 parts and 1 part~200 parts of water of antisludging agent.Above-mentioned deashing agent is prepared without containing inorganic acid in raw material, only with oxygen
Agent and fluorine-containing salt system, cooperation stabilizer, catalyst, cosolvent and antisludging agent use, and can reach quick and preferable
Dedusting effect, and above-mentioned deashing agent is to the less pollution of environment.
Above-mentioned deashing agent has at least the following advantages:
(1) above-mentioned deashing agent uses oxidant and fluorine-containing salt system, cooperation be added catalyst and stabilizer and antisludging agent,
Cosolvent, so that deashing agent can remove the silicon ash that silico-aluminum exposes after pickling alkaline etching and indissoluble oxide, ash disposal effect
Fruit is good, can obtain the active silica-alumina alloy surface of even compact cleaning.
(2) above-mentioned deashing agent in use will not without using nitric acid, phosphoric acid and hydrofluoric acid and other inorganic acids
Nitrogen oxides, hydrogen fluoride escaping gas are generated, greatly reduces the phosphorus discharge in waste water, to the less pollution of environment.Due to not
Using inorganic acid, deashing agent only removes the silicon ash on surface, without being further corroded to silico-aluminum, therefore, above-mentioned deashing agent
Small to the corrosivity of silico-aluminum, ash disposal reaction has the characteristics that self termination, the complicated silico-aluminum suitable for precise structure.
(3) dedusting effect of above-mentioned deashing agent is good, and through above-mentioned deashing agent, treated that silico-aluminum can be used in plating.
(4) above-mentioned deashing agent formula composition is simple, and raw material is cheap and easy to get, industrial application value with higher and economic effect
Benefit.
(5) the use temperature of above-mentioned deashing agent is low, room temperature, without heating, and above-mentioned deashing agent may be implemented 30s~
The quick ash disposal of 90s.
Referring to Fig. 1, the preparation method of the deashing agent of an embodiment, includes the following steps:
Step S110: raw material is weighed by mass fraction, raw material includes: 1 part~100 parts of oxidant, fluorine-containing salts 1 part~100
Part, 0.01 part~10 parts of stabilizer, 0.01 part~10 parts of catalyst, 0.01 part~10 parts of cosolvent, antisludging agent 0.01 part~10
Part and 1 part~200 parts of water.
Step S120: oxidant, fluorine-containing salts, stabilizer, catalyst, cosolvent, antisludging agent and water are mixed, ash disposal is obtained
Agent.
Wherein, time oxidant, fluorine-containing salts, stabilizer, catalyst, cosolvent, antisludging agent and water mixed is 10min
~240min.
Specifically, step S120 includes:
Under agitation, Xiang Shuizhong sequentially adds fluorine-containing salts and oxidant, stirs to being completely dissolved, obtains the first stirring
Liquid；
Antisludging agent, stabilizer, cosolvent and catalyst are sequentially added into the first stirring liquid, stirs evenly, obtains ash disposal
Agent.
Further, various raw materials are sequentially added, after the raw material is completely dissolved, a kind of lower raw material is added, can make
Mixing is abundant.
Specifically, oxidant is selected from least one of hydrogen peroxide, potassium peroxydisulfate, sodium peroxydisulfate and ammonium persulfate.
Fluorine-containing salts are in sodium fluoride, potassium fluoride, lithium fluoride, ammonium fluoride, ammonium acid fluoride, sodium bifluoride and potassium hydrogen fluoride
It is at least one.
Stabilizer is alcohol ethers compound.Specifically, stabilizer is selected from ethylene glycol ethyl ether, butyl glycol ether, ethylene glycol phenyl
At least one of ether, diethylene glycol ether and butyl.
Catalyst is transition metal salt.Specifically, catalyst is selected from containing molysite, manganese containing salt, contains nickel salt, containing mantoquita and argentiferous
At least one of salt.
Antisludging agent is selected from 1-hydroxy ethylidene-1,1-diphosphonic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid sodium, 1-hydroxy ethylidene-1,1-diphosphonic acid potassium and hydroxy ethylidene
At least one of di 2 ethylhexyl phosphonic acid ammonium.
Cosolvent is polyalcohol.Specifically, cosolvent be selected from ethylene glycol, propylene glycol, glycerine, 1,4-butanediol and 1,2,
At least one of 4- butantriol.
The preparation method of above-mentioned deashing agent has at least the following advantages:
(1) preparation method of above-mentioned deashing agent is easy to operate, short processing time, easy to industrialized production.
(2) preparation method of above-mentioned deashing agent can obtain that dedusting effect is good and the lesser deashing agent of environmental pollution.
The above-mentioned deashing agent of one embodiment or the deashing agent obtained by the preparation method of above-mentioned deashing agent are in silico-aluminum
Application in plating.It can be used in being electroplated through the processed silico-aluminum of above-mentioned deashing agent, and electroplating effect is good.
The process for deashing of the silico-aluminum of one embodiment includes the following steps: to remove silico-aluminum with deashing agent
Ash processing, wherein according to the mass fraction, the raw material for preparing deashing agent includes: 1 part~100 parts of oxidant, fluorine-containing salts 1 part~100
Part, 0.01 part~10 parts of stabilizer, 0.01 part~10 parts of catalyst, 0.01 part~10 parts of cosolvent, antisludging agent 0.01 part~10
Part and 1 part~200 parts of water.
Specifically, silico-aluminum is soaked in progress ash disposal processing in deashing agent.Specifically, with deashing agent to silico-aluminum
In the step of carrying out ash disposal processing, the ash disposal time is 30s~90s, and ash disposal temperature is 15 DEG C~35 DEG C.
Further, before the step of carrying out ash disposal processing to silico-aluminum with deashing agent, silico-aluminum is carried out first
Oil removing, pickling and alkaline etching processing.It further include to silico-aluminum after the step of silico-aluminum is carried out ash disposal processing with deashing agent
The step of being washed.The active silica-alumina alloy surface of even compact cleaning can be obtained after washing.Silico-aluminum is carried out
The step of oil removing, pickling and alkaline etching are handled is conventional step.
Specifically, oxidant is selected from least one of hydrogen peroxide, potassium peroxydisulfate, sodium peroxydisulfate and ammonium persulfate.
Fluorine-containing salts are in sodium fluoride, potassium fluoride, lithium fluoride, ammonium fluoride, ammonium acid fluoride, sodium bifluoride and potassium hydrogen fluoride
It is at least one.
Stabilizer is alcohol ethers compound.Specifically, stabilizer is selected from ethylene glycol ethyl ether, butyl glycol ether, ethylene glycol phenyl
At least one of ether, diethylene glycol ether and butyl.
Catalyst is transition metal salt.Specifically, catalyst is selected from containing molysite, manganese containing salt, contains nickel salt, containing mantoquita and argentiferous
At least one of salt.
Antisludging agent is selected from 1-hydroxy ethylidene-1,1-diphosphonic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid sodium, 1-hydroxy ethylidene-1,1-diphosphonic acid potassium and hydroxy ethylidene
At least one of di 2 ethylhexyl phosphonic acid ammonium.
Cosolvent is polyalcohol.Specifically, cosolvent be selected from ethylene glycol, propylene glycol, glycerine, 1,4-butanediol and 1,2,
At least one of 4- butantriol.
The process for deashing of above-mentioned silico-aluminum is easy to operate, and the ash disposal time is short and dedusting effect is good.
The following are specific embodiments:
Embodiment 1
The preparation process of the deashing agent of the present embodiment is as follows: according to the mass fraction, 100 parts of water are added in stirred tank,
Under stirring, 20 parts of potassium fluorides, 30 parts of hydrogen peroxide are sequentially added, 5 parts of 1-hydroxy ethylene-1,1-diphosphonics are added to after being completely dissolved for stirring
Sour sodium, 1 part of butyl glycol ether, 10 parts of ethylene glycol, 2 parts of ferric trichlorides stir evenly, and obtain deashing agent.Wherein, mistake in hydrogen peroxide
The mass content of hydrogen oxide is 50%.
The silico-aluminum that the present embodiment uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of the present embodiment is as follows: by silico-aluminum piece after ultrasonic oil removing, pickling and alkaline etching,
It is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 25 DEG C, is taken out after keeping 60s, is washed three times, obtained silico-aluminum
Surface compact is uniformly clean, wipes without grey black.
Embodiment 2
The preparation process of the deashing agent of the present embodiment is as follows: according to the mass fraction, 200 parts of water are added in stirred tank,
Under stirring, 50 parts of ammonium fluorides are sequentially added, 30 parts of hydrogen peroxide stir to after being completely dissolved and 2 parts of 1-hydroxy ethylene-1,1-diphosphonics are added
Acid, 2 parts of ethylene glycol ethyl ethers, 4 parts of propylene glycol, 1 part of six hydration nickel sulfate stir evenly, and obtain deashing agent.Wherein, mistake in hydrogen peroxide
The mass content of hydrogen oxide is 50%.
The silico-aluminum that the present embodiment uses is the silico-aluminum filter cavity that aluminium alloy AC-44300 is obtained through die casting.
The size of silico-aluminum filter cavity is 450mm × 300mm × 70mm.
The ash disposal process of the silico-aluminum of the present embodiment is as follows: by silico-aluminum filter cavity through ultrasonic oil removing, pickling
It after alkaline etching, is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 25 DEG C, is taken out after keeping 60s, washes three times, obtains
Silico-aluminum filter cavity surface compact it is uniformly clean, wipe without grey black.
Embodiment 3
The preparation process of the deashing agent of the present embodiment is as follows: according to the mass fraction, 60 parts of water being added in stirred tank, are stirring
It mixes under state, sequentially adds 20 parts of ammonium acid fluorides, 15 parts of ammonium persulfates, 3 parts of hydroxy ethylidenes two are added to after being completely dissolved for stirring
Phosphonic acids potassium, 5 parts of diethylene glycol ethers, 6 parts of glycerine, 0.5 part of manganese sulfate stir evenly, and obtain deashing agent.
The silico-aluminum that the present embodiment uses is the filter cover board that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of filter cover board is 200mm × 150mm × 2.5mm.
The ash disposal process of the silico-aluminum of the present embodiment is as follows: by silico-aluminum filter cover board through ultrasonic oil removing, pickling
It after alkaline etching, is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 15 DEG C, is taken out after keeping 90s, washes three times, obtains
Silico-aluminum filter cover board surface compact it is uniformly clean, wipe without grey black.
Embodiment 4
The preparation process of the deashing agent of the present embodiment is as follows: according to the mass fraction, 40 parts of water being added in stirred tank, are stirring
It mixes under state, sequentially adds 20 parts of sodium fluorides, 20 parts of hydrogen peroxide stir to after being completely dissolved and 0.3 part of 1-hydroxy ethylene-1,1-diphosphonic is added
Acid, 1 part of butyl, 4 parts of 1,2,4-butanetriol, 0.05 part of silver nitrate stir evenly, and obtain deashing agent.Wherein, dioxygen
The mass content of hydrogen peroxide is 50% in water.
The silico-aluminum that the present embodiment uses is the silico-aluminum piece that aluminium alloy 4A01 is obtained through die casting.Silico-aluminum piece
Size is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of the present embodiment is as follows: by silico-aluminum piece after ultrasonic oil removing, pickling and alkaline etching,
It is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 15 DEG C, is taken out after keeping 90s, is washed three times, obtained silico-aluminum
Surface compact is uniformly clean, wipes without grey black.
Embodiment 5
The preparation process of the deashing agent of the present embodiment is as follows: according to the mass fraction, 1 part of water being added in stirred tank, is stirring
It mixes under state, sequentially adds 1 part of lithium fluoride, 1 part of potassium peroxydisulfate, 0.01 part of 1-hydroxy ethylene-1,1-diphosphonic is added to after being completely dissolved for stirring
Sour ammonium, 0.01 part of ethylene glycol phenyl ether, 0.01 part of 1,4-butanediol, 0.01 part of copper chloride stir evenly, and obtain deashing agent.
The silico-aluminum that the present embodiment uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of the present embodiment is as follows: by silico-aluminum piece after ultrasonic oil removing, pickling and alkaline etching,
It is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 35 DEG C, is taken out after keeping 30s, is washed three times, obtained silico-aluminum
Surface compact is uniformly clean, wipes without grey black.
Embodiment 6
The preparation process of the deashing agent of the present embodiment is as follows: according to the mass fraction, 200 parts of water are added in stirred tank,
Under stirring, the mixing of the mixture, 50 parts of hydrogen peroxide and sodium peroxydisulfate of 100 parts of potassium hydrogen fluorides and sodium fluoride is sequentially added
Object stirs to after being completely dissolved and mixture, the 5 parts of diethyls two of 10 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid sodium and 1-hydroxy ethylidene-1,1-diphosphonic acid is added
The mixing of the mixture of alcohol ether and ethylene glycol phenyl ether, the mixture of 5 parts of ethylene glycol and glycerine, 10 parts of ferric sulfate and silver nitrate
Object stirs evenly, and obtains deashing agent, wherein the mass content of hydrogen peroxide is 50% in hydrogen peroxide.
The silico-aluminum that the present embodiment uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of the present embodiment is as follows: by silico-aluminum piece after ultrasonic oil removing, pickling and alkaline etching,
It is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 25 DEG C, is taken out after keeping 60s, is washed three times, obtained silico-aluminum
Surface compact is uniformly clean, wipes without grey black.
Embodiment 7
The preparation process of the deashing agent of the present embodiment is as follows: according to the mass fraction, 150 parts of water are added in stirred tank,
Under stirring, the mixture, 100 parts of ammonium persulfates, sodium peroxydisulfate and mistake of 60 parts of potassium hydrogen fluorides and sodium bifluoride are sequentially added
6 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid potassium, 1-hydroxy ethylidene-1,1-diphosphonic acid potassium and hydroxyl are added to after being completely dissolved for the mixture of potassium sulfate, stirring
The mixture of ethylene-diphosphonic acid ammonium, 10 parts of butyl glycol ethers, the mixture of ethylene glycol phenyl ether and ethylene glycol ethyl ether, 5 parts of ethylene glycol,
The mixture of the mixture of propylene glycol and 1,4-butanediol, 5 parts of ferric sulfate and nickel sulfate stirs evenly, and obtains deashing agent.
The silico-aluminum that the present embodiment uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of the present embodiment is as follows: by silico-aluminum piece after ultrasonic oil removing, pickling and alkaline etching,
It is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 25 DEG C, is taken out after keeping 60s, is washed three times, obtained silico-aluminum
Surface compact is uniformly clean, wipes without grey black.
Embodiment 8
The preparation process of the deashing agent of the present embodiment is as follows: according to the mass fraction, 40 parts of water being added in stirred tank, are stirring
It mixes under state, sequentially adds 25 parts of ammonium fluorides, 35 parts of hydrogen peroxide, 0.2 part of 1-hydroxy ethylene-1,1-diphosphonic is added to after being completely dissolved for stirring
Acid, 1 part of ethylene glycol ethyl ether, 0.5 part of ethylene glycol, 0.05 part of cupric sulfate pentahydrate stir evenly, and obtain deashing agent, wherein hydrogen peroxide
The mass content of middle hydrogen peroxide is 50%.
The silico-aluminum that the present embodiment uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of the present embodiment is as follows: 300mL deashing agent is taken, by two panels silico-aluminum piece through ultrasound
It after oil removing, pickling and alkaline etching, is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 20 DEG C, is taken out after keeping 30s, is washed
Three times, obtained silico-aluminum surface compact is uniformly clean, wipes without grey black.Continue with this two panels silico-aluminum piece, repetition alkali
Erosion and two step of ash disposal, after 100 times, silico-aluminum surface compact is uniformly clean, wipes without grey black.
Comparative example 1
The preparation process of the deashing agent of this comparative example is as follows: according to the mass fraction, 40 parts of water being added in stirred tank, are stirring
It mixes under state, sequentially adds 25 parts of ammonium fluorides, 35 parts of hydrogen peroxide, 0.2 part of 1-hydroxy ethylene-1,1-diphosphonic is added to after being completely dissolved for stirring
Acid, 0.5 part of ethylene glycol, 0.05 part of cupric sulfate pentahydrate stir evenly, and obtain deashing agent, wherein the matter of hydrogen peroxide in hydrogen peroxide
Measuring content is 50%.
The silico-aluminum that this comparative example uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of this comparative example is as follows: 300mL deashing agent is taken, by two panels silico-aluminum piece through ultrasound
It after oil removing, pickling and alkaline etching, is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 20 DEG C, is taken out after keeping 30s, is washed
Three times, obtained silico-aluminum surface wipes are without grey black.Continue to repeat alkaline etching and two step of ash disposal with this two panels silico-aluminum piece,
After 100 times, there is grey black on silico-aluminum surface.
Comparative example 2
The preparation process of the deashing agent of this comparative example is as follows: according to the mass fraction, 100 parts of water are added in stirred tank,
Under stirring, 20 parts of potassium fluorides, 30 parts of hydrogen peroxide are sequentially added, 5 parts of 1-hydroxy ethylene-1,1-diphosphonics are added to after being completely dissolved for stirring
Sour sodium, 1 part of butyl glycol ether, 10 parts of ethylene glycol stir evenly, and obtain deashing agent, wherein the quality of hydrogen peroxide in hydrogen peroxide
Content is 50%.
The silico-aluminum that this comparative example uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of this comparative example is as follows: by silico-aluminum piece after ultrasonic oil removing, pickling and alkaline etching,
It is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 25 DEG C, is taken out after keeping 60s, is washed three times, obtained silico-aluminum
There is grey black on surface.
Comparative example 3
The preparation process of the deashing agent of this comparative example is as follows: according to the mass fraction, 100 parts of water are added in stirred tank,
Under stirring, 20 parts of potassium fluorides, 30 parts of hydrogen peroxide are sequentially added, 1 part of butyl glycol ether, 10 are added to after being completely dissolved for stirring
Part ethylene glycol, 2 parts of ferric trichlorides stir evenly, and obtain deashing agent, wherein the mass content of hydrogen peroxide is in hydrogen peroxide
50%.
The silico-aluminum that this comparative example uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of this comparative example is as follows: by silico-aluminum piece after ultrasonic oil removing, pickling and alkaline etching,
It is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 25 DEG C, is taken out after keeping 60s, is washed three times, obtained silico-aluminum
Surface wipes have grey black.
Comparative example 4
The preparation process of the deashing agent of this comparative example is as follows: according to the mass fraction, 100 parts of water are added in stirred tank,
Under stirring, 20 parts of potassium fluorides, 30 parts of hydrogen peroxide are sequentially added, 5 parts of 1-hydroxy ethylene-1,1-diphosphonics are added to after being completely dissolved for stirring
Sour sodium, 1 part of butyl glycol ether, 2 parts of ferric trichlorides stir evenly, and obtain deashing agent, wherein the quality of hydrogen peroxide in hydrogen peroxide
Content is 50%.
The silico-aluminum that this comparative example uses is the silico-aluminum piece that aluminium alloy AC-44300 is obtained through die casting.Silico-aluminum
The size of piece is 70mm × 50mm × 2.5mm.
The ash disposal process of the silico-aluminum of this comparative example is as follows: by silico-aluminum piece after ultrasonic oil removing, pickling and alkaline etching,
It is soaked in the deashing agent of above-mentioned preparation, ash disposal temperature is 25 DEG C, is taken out after keeping 60s, is washed three times, obtained silico-aluminum
There is yellow dirt on surface.
By in 1~embodiment of above-described embodiment 8 through deashing agent treated silico-aluminum through zinc-plated, alkaline nickel plating, copper facing,
Dried after silver-plated process, observe coating without blistering, without obscission.Plating piece is placed in baking oven, in 260 DEG C of baking 30min, plating
Layer without blistering, without obscission.Show that the ash disposal performance of the deashing agent prepared in 1~embodiment of embodiment 8 is up to standard, and can expire
The demand of sufficient subsequent electroplating process.And through deashing agent treated silico-aluminum through zinc-plated, alkaline in 1~comparative example of comparative example 4
It is dried after nickel plating, copper facing, silver-plated process, observes that coating has apparent blistering and obscission.Wherein, embodiment and comparative example
Silico-aluminum is zinc-plated, alkaline nickel plating, copper facing, the process of silver-plated process and drying are all the same.
From the comparison of embodiment 8 and comparative example 1 as can be seen that the deashing agent of comparative example 1 is prepared in raw material due to being free of
There is stabilizer, deashing agent cannot continue ash disposal after to silico-aluminum ash disposal 100 times, and the deashing agent ash disposal in embodiment 8
It remains to continue ash disposal after 100 times, illustrates the ash disposal longer life expectancy for adding the deashing agent of stabilizer.
From the dedusting effect that can be seen that the deashing agent being prepared in 1~embodiment of embodiment 8 in above-mentioned experimental result
Well, and through the processed silico-aluminum of above-mentioned deashing agent the requirement for meeting electroplating technology, can be used in the plating of silico-aluminum.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (12)
1. a kind of deashing agent, which is characterized in that according to the mass fraction, prepare the deashing agent raw material include: 1 part of oxidant~
100 parts, 1 part~100 parts of fluorine-containing salts, 0.01 part~10 parts of stabilizer, 0.01 part~10 parts of catalyst, cosolvent 0.01 part~10
Part, 0.01 part~10 parts of antisludging agent and 1 part~200 parts of water.
2. deashing agent according to claim 1, which is characterized in that the oxidant is selected from hydrogen peroxide, potassium peroxydisulfate, over cure
At least one of sour sodium and ammonium persulfate.
3. deashing agent according to claim 1, which is characterized in that the fluorine-containing salts are selected from sodium fluoride, potassium fluoride, fluorination
At least one of lithium, ammonium fluoride, ammonium acid fluoride, sodium bifluoride and potassium hydrogen fluoride.
4. deashing agent according to claim 1, which is characterized in that the stabilizer is selected from ethylene glycol ethyl ether, ethylene glycol fourth
At least one of ether, ethylene glycol phenyl ether, diethylene glycol ether and butyl.
5. deashing agent according to claim 1, which is characterized in that the catalyst is selected from containing molysite, manganese containing salt, nickeliferous
Salt contains mantoquita and containing at least one of silver salt.
6. deashing agent according to claim 1, which is characterized in that the antisludging agent is selected from 1-hydroxy ethylidene-1,1-diphosphonic acid, hydroxyl
At least one of ethylene-diphosphonic acid sodium, 1-hydroxy ethylidene-1,1-diphosphonic acid potassium and 1-hydroxy ethylidene-1,1-diphosphonic acid ammonium.
7. deashing agent according to claim 1, which is characterized in that the cosolvent is selected from ethylene glycol, propylene glycol, the third three
At least one of alcohol, 1,4-butanediol and 1,2,4-butanetriol.
8. described in any item deashing agents according to claim 1~7, which is characterized in that according to the mass fraction, prepare the ash disposal
The raw material of agent includes: 5 parts~50 parts of the oxidant, 5 parts~35 parts of the fluorine-containing salts, 0.05 part~2 parts of the stabilizer, institute
State 10 parts of 0.02 part~1 part of catalyst, 0.05 part~2 parts of the cosolvent, 0.02 part~2 parts of the antisludging agent and the water~
60 parts.
9. a kind of preparation method of deashing agent, which comprises the steps of:
Raw material is weighed by mass fraction, the raw material includes: 1 part~100 parts of oxidant, 1 part of fluorine-containing salts~100 parts, stabilizer
0.01 part~10 parts, 0.01 part~10 parts of catalyst, 0.01 part~1O parts of cosolvent, 0.01 part~10 parts and 1 part of water of antisludging agent
~200 parts；And
By the oxidant, the fluorine-containing salts, the stabilizer, the catalyst, the cosolvent, the antisludging agent and described
Water mixing, obtains deashing agent.
10. deashing agent according to any one of claims 1 to 8 is prepared by the preparation method of deashing agent as claimed in claim 9
Application of the obtained deashing agent in silico-aluminum plating.
11. a kind of process for deashing of silico-aluminum, which comprises the steps of: carried out with deashing agent to silico-aluminum
Ash disposal processing, wherein according to the mass fraction, the raw material for preparing the deashing agent includes: 1 part~100 parts of oxidant, fluorine-containing salts 1
Part~100 parts, 0.01 part~10 parts of stabilizer, 0.01 part~10 parts of catalyst, 0.01 part~10 parts of cosolvent, antisludging agent 0.01
Part~10 parts and 1 part~200 parts of water.
12. the process for deashing of silico-aluminum according to claim 11, which is characterized in that described to be closed with deashing agent to sial
Gold carried out in the step of ash disposal processing, and the ash disposal time is 30s~90s, and ash disposal temperature is 15 DEG C~35 DEG C.
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