CN105887178A - Plasma aluminum alloy polishing salt preparation and polishing method - Google Patents
Plasma aluminum alloy polishing salt preparation and polishing method Download PDFInfo
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- CN105887178A CN105887178A CN201610470741.5A CN201610470741A CN105887178A CN 105887178 A CN105887178 A CN 105887178A CN 201610470741 A CN201610470741 A CN 201610470741A CN 105887178 A CN105887178 A CN 105887178A
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- polishing
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- salt
- finishing method
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
- C25F3/18—Polishing of light metals
- C25F3/20—Polishing of light metals of aluminium
Abstract
The invention provides a polishing preparation and a polishing method. A technical scheme of the invention is characterized in that this preparation is made with the components according to percent by weight: 2-6% of a polishing salt, 2-4% of ammonium chloride, 0.3-0.8% of citric acid, 0.3-0.8% of sodium citrate, and the balance of water; the above materials are mixed with the water to obtain PH value of 6-7. The polishing method comprises the following steps: 1), preparing the plasma aluminum alloy polishing salt preparation according to claim 1; 2), enabling bath liquid to be at 93-96 DEG C; placing in a workpiece for pretreatment for 0.3-3 min; 3), keeping the bath temperature to 95-96 DEG C and oxygen flow to 80-100 Sccm; 4), polishing according to step 3) for 0.3-2 min so that the polished workpiece is up to Ra 0.2 and below in roughness; 5), washing and drying twice.
Description
Technical field
The invention belongs to metal surface polishing technical field, relate to a kind of polishing preparation and finishing method, be specially a kind of plasma aluminium alloy polishing salt pref and finishing method.
Background technology
In existing plasma polishing process, stainless steel material can only be polished deburring, other material cannot be accomplished to polish deburring effect, even have the phenomenon of burn product.This is that surface ion inadequate due to ionized gas density, aluminium is excessively active causes, simultaneously as the molecular structure of aluminum alloy materials is the most active, so easily burning in plasma polishing process, namely creating aluminium dioxide and result in pollution.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of polishing preparation and finishing method, the plasma aluminium alloy being mainly equipped with polishing salt pref, has reached to control the matters condition of gas flow in plasma polishing process.
Its technical scheme is:
Plasma aluminium alloy polishing salt pref, its component by mass percentage is:
Polishing salt 2～6%
Ammonium chloride 2～4%
Citric acid 0.3～0.8%
Sodium citrate 0.3～0.8%
Surplus is water；
Above-mentioned polishing salt, ammonium chloride, citric acid, sodium citrate being mixed with water, after mixing, pH value is 6～7.
The invention provides a kind of finishing method, comprise the steps:
Step 1): prepare plasma aluminium alloy polishing salt pref according to claim 1, add to plasma polissoir；
Step 2): set the voltage of plasma polissoir as 280V, and to heating so that tank liquor temperature is 93～96 DEG C；Putting into workpiece to pre-process, making workpiece is that anode produces reaction in a liquid, and pretreatment time is 0.3～3min；
Step 3): treat that workpiece surface roughness is entering plasma polishing under conditions of should reaching 1.6min；Maintaining tank liquor temperature is 95 DEG C～96 DEG C, and plasma polissoir voltage is DC280V～330V, and oxygen flow is 80-100Sccm；
Step 4): step 3) polishing time 0.3～2min so that after polishing, workpiece roughness is up to Ra0.2 and following；
Step 5): polished workpiece enters the first rinsing bowl washing 2～5S, places baking box and dried by moisture after entering back into the second rinsing bowl washing 2～5S.
Further, in step 2) in, under voltage 280V, electrodeposit density is 60A/d.
Further, in step 2), step 3), in step 4), workpiece is used and is suspended on the Special hanger of plasma polissoir, this Special hanger electric conductivity is 3 cm/1A.
Further, in step 3) and step 4), the thickness 0.01～0.05mm of the gas blanket that oxygen is formed.
The advantage that the present invention highlights is:
1, the present invention is by aluminium alloy in plasma polishing process, and production efficiency is high, and processing rear surface flatness is high, the least to environmental hazard；
2, can directly remove surface Lao Pi and oxide layer, arrive gloss requirement, provide good basis for follow-up plating.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail; wherein, embodiment is present pre-ferred embodiments, is not unique embodiment of the present invention; therefore, the present invention carry out simple or limited number of time experiment to reach other embodiments of effects equivalent and belong to protection scope of the present invention.
Plasma aluminium alloy polishing salt pref, its component by mass percentage is:
Polishing salt 2～6%
Ammonium chloride 2～4%
Citric acid 0.3～0.8%
Sodium citrate 0.3～0.8%
Surplus is water；
Above-mentioned polishing salt, ammonium chloride, citric acid, sodium citrate being mixed with water, after mixing, pH value is 6～7.
The invention provides a kind of finishing method, comprise the steps:
Step 1): prepare plasma aluminium alloy polishing salt pref according to claim 1, add to plasma polissoir；
Step 2): set the voltage of plasma polissoir as 280V, and to heating so that tank liquor temperature is 93～96 DEG C；Putting into workpiece to pre-process, making workpiece is that anode produces reaction in a liquid, and pretreatment time is 0.3～3min；
Step 3): treat that workpiece surface roughness is entering plasma polishing under conditions of should reaching 1.6min；Maintaining tank liquor temperature is 95 DEG C～96 DEG C, and plasma polissoir voltage is DC280V～330V, and oxygen flow is 80-100Sccm；
Step 4): step 3) polishing time 0.3～2min so that after polishing, workpiece roughness is up to Ra0.2 and following；
Step 5): polished workpiece enters the first rinsing bowl washing 2～5S, places baking box and dried by moisture after entering back into the second rinsing bowl washing 2～5S.
Further, in step 2) in, under voltage 280V, electrodeposit density is 60A/d.
Further, in step 2), step 3), in step 4), workpiece is used and is suspended on the Special hanger of plasma polissoir, this Special hanger electric conductivity is 3 cm/1A.
Further, in step 3) and step 4), the thickness 0.01～0.05mm of the gas blanket that oxygen is formed.
Its principle is: plasma polished aluminum alloy process produces moment heat after mainly being run into strong voltage reaction by a kind of liquid and is converted to gaseous state, and when gas reaches certain density, molecule Atom spacing is ionized between 0.1～0.3, is the formation of plasma state.The flow of gas is decided by isoionic thickness, and when the flow of gas reaches 80-100Sccm, and this thickness avoids the burn to aluminum alloy surface.
Plasma with anode for polishing main body, had both needed the workpiece of polishing when being polished, and liquid is negative electrode, and polishing main body (anode) is surrounded by gas blanket (plasma state), and gas blanket is surrounded by liquid.Will produce discharge effect between negative electrode and anode and reach deburring and surface evening effect, negative electrode and anodic gas layer can produce ion high-speed motion and massage the surface of anode thus reach the effect of surface-brightening.
Utilize the technical program to be polished, in practical study and production, We conducted substantial amounts of test, use the relation of time with the qualification rate and polishing salt drawing product.With reference to Fig. 1.Fig. 1 is polishing salt pref working time and the graph of a relation of workpiece qualification rate.From Fig. 1, can be seen that from above real data, product is sustainable production 10 hours under fully loaded state, and when this boundary of time, amount of ions will reduce, and weakens generation and the work of air film.Here, advise that every cylinder polishing salt is changed in working 8 ~ 9 hours, in the ensured product quality of period, arrive the control level of zero-fault.
Claims (5)
1. plasma aluminium alloy polishing salt pref, it is characterised in that: its component by mass percentage is:
Polishing salt 2～6%
Ammonium chloride 2～4%
Citric acid 0.3～0.8%
Sodium citrate 0.3～0.8%
Surplus is water；Above-mentioned polishing salt, ammonium chloride, citric acid, sodium citrate being mixed with water, after mixing, pH value is 6～7.
2. a finishing method, it is characterised in that comprise the steps:
Step 1): prepare plasma aluminium alloy polishing salt pref according to claim 1, add to plasma polissoir；
Step 2): set the voltage of plasma polissoir as 280V, and to heating so that tank liquor temperature is 93～96 DEG C；Putting into workpiece to pre-process, making workpiece is that anode produces reaction in a liquid, and pretreatment time is 0.3～3min；
Step 3): treat that workpiece surface roughness is entering plasma polishing under conditions of should reaching 1.6min；Maintaining tank liquor temperature is 95 DEG C～96 DEG C, and plasma polissoir voltage is DC280V～330V, and oxygen flow is 80-100Sccm；
Step 4): step 3) polishing time 0.3～2min so that after polishing, workpiece roughness is up to Ra0.2 and following；
Step 5): polished workpiece enters the first rinsing bowl washing 2～5S, places baking box and dried by moisture after entering back into the second rinsing bowl washing 2～5S.
A kind of finishing method the most according to claim 2, it is characterised in that in step 2) in, under voltage 280V, electrodeposit density is 60A/d.
A kind of finishing method the most according to claim 2, it is characterised in that in step 2), step 3), in step 4), workpiece is used and is suspended on the Special hanger of plasma polissoir, this Special hanger electric conductivity is 3 cm/1A.
A kind of finishing method the most according to claim 2, it is characterised in that in step 3) and step 4), the thickness 0.01～0.05mm of the gas blanket that oxygen is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470741.5A CN105887178A (en) | 2016-06-25 | 2016-06-25 | Plasma aluminum alloy polishing salt preparation and polishing method |
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| CN201610470741.5A CN105887178A (en) | 2016-06-25 | 2016-06-25 | Plasma aluminum alloy polishing salt preparation and polishing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666935A (en) * | 2019-02-20 | 2019-04-23 | 东莞市金林自动化机械科技有限公司 | A kind of plasma electric slurry polishing salt and preparation method thereof for silver |
| CN109735895A (en) * | 2018-12-07 | 2019-05-10 | 南京工程学院 | A kind of the electrolyte plasma polishing fluid and polishing process of aluminium alloy |
| CN110129872A (en) * | 2019-05-23 | 2019-08-16 | 广州市雷傲科技有限公司 | Polishing fluid is used in a kind of polishing of cobalt chrome metal electrolyte plasma |
| CN110885638A (en) * | 2019-11-26 | 2020-03-17 | 东莞市八溢自动化设备有限公司 | Plasma polishing agent and polishing method |
| CN112496484A (en) * | 2020-10-19 | 2021-03-16 | 陕西斯瑞新材料股份有限公司 | Metal auxiliary machining process for plasma deburring of copper alloy contact |
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| CN101591798A (en) * | 2008-06-01 | 2009-12-02 | 比亚迪股份有限公司 | A kind of metalwork and surface treatment method thereof |
| CN102310307A (en) * | 2011-07-04 | 2012-01-11 | 常州天合光能有限公司 | Assembly technology of bearing box of crystalline silicon slicer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735895A (en) * | 2018-12-07 | 2019-05-10 | 南京工程学院 | A kind of the electrolyte plasma polishing fluid and polishing process of aluminium alloy |
| CN109666935A (en) * | 2019-02-20 | 2019-04-23 | 东莞市金林自动化机械科技有限公司 | A kind of plasma electric slurry polishing salt and preparation method thereof for silver |
| CN110129872A (en) * | 2019-05-23 | 2019-08-16 | 广州市雷傲科技有限公司 | Polishing fluid is used in a kind of polishing of cobalt chrome metal electrolyte plasma |
| CN110129872B (en) * | 2019-05-23 | 2020-08-21 | 广州市雷傲科技有限公司 | Polishing solution for cobalt-chromium metal electrolyte plasma polishing |
| CN110885638A (en) * | 2019-11-26 | 2020-03-17 | 东莞市八溢自动化设备有限公司 | Plasma polishing agent and polishing method |
| CN112496484A (en) * | 2020-10-19 | 2021-03-16 | 陕西斯瑞新材料股份有限公司 | Metal auxiliary machining process for plasma deburring of copper alloy contact |
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Application publication date: 20160824 |