CN1824845A - Surface treatment method of aluminium tyre mould - Google Patents
Surface treatment method of aluminium tyre mould Download PDFInfo
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- CN1824845A CN1824845A CN 200610033287 CN200610033287A CN1824845A CN 1824845 A CN1824845 A CN 1824845A CN 200610033287 CN200610033287 CN 200610033287 CN 200610033287 A CN200610033287 A CN 200610033287A CN 1824845 A CN1824845 A CN 1824845A
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- tyre mould
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Abstract
The invention discloses an aluminum wheel mould surface process method. The technology method includes the following steps: clipping the wheel on clip tool, and dipping into alkaline electrolyte tank; connecting the clip tool to anode, and the corrosion resistant plate of tank connecting to cathode, adding impulse voltage to peel voltage onto the component for 30-60 minutes. The invention could make the surface have high rigidity and binding power, strong corrosion resistance and prolong the useful life of the aluminum cooker.
Description
Technical field
The present invention relates to a kind of method of metal finishing, particularly a kind of method of aluminium tyre mould surface Hardening Treatment.
Background technology
At present; the surface protection rete of aluminium tyre mould mainly is hard anodized film layer and some other organic films; the film hardness of employing hard anodizing method preparation and lower with the bonding force of matrix; generally between HV400～600; wear resisting property is relatively poor, and antiseptic property is also comparatively limited, can only play the short period of time preservative activity; so in use be easy to come off, corrode, cause the work-ing life of aluminium tyre mould shorter.
Summary of the invention
The purpose of this invention is to provide a kind of surface treatment method of aluminium tyre mould, the technical problem that solve is intensity and the resistance to corrosion that strengthens the aluminium tyre mould surface.
The present invention is by the following technical solutions: a kind of surface treatment method of aluminium tyre mould may further comprise the steps: one, aluminium tyre mould is installed on the anchor clamps, is immersed in the alkaline electrolysis liquid bath; Two, anchor clamps connect positive pole, and the cell body stainless steel plate connects negative electrode, constantly workpiece are applied pulsed voltage to crest voltage by power supply, 30～60 minutes time.
Peak-peak voltage is 500V～750V between method workpiece of the present invention and the negative electrode, current density 1～3A/dm
2, frequency is 600HZ～1500HZ.
When method of the present invention added pulsed voltage on workpiece, the temperature in the alkaline electrolyte was controlled at 20～30 ℃ scope.
Alkaline electrolyte of the present invention comprises that solute weight and pure water solvent volume ratio are: Sodium hexametaphosphate 99 15g/L～45g/L, water glass 6g/L～25g/L, wolframic acid receive 4g/L～8g/L, molybdic acid and receive 2g/L～6g/L.
The glycerol that contains 10ml/L in the alkaline electrolyte of the present invention.
Contain in the alkaline electrolyte of the present invention and be useful on the phosphoric acid of adjusting pH value.
The pH value of alkaline electrolyte of the present invention is 8～12.
The present invention compared with prior art, adopt the method for Microarc Oxidation Surface Treatment that oxide treatment is carried out on the aluminium tyre mould surface, generate aluminium sesquioxide rete with sintering metal crystalline structure on the surface, has higher hardness, simultaneously stronger bonding force is arranged with matrix, anti-corrosion capability is strong, the work-ing life of improving aluminium cooking utensils greatly simultaneously.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1: use Microarc Oxidation Surface Treatment equipment, the equipment significant parameter is 200KW, 1500HZ, 800V, alkaline electrolyte is that hexametaphosphate is a solution, press solute weight and pure water solvent volume ratio, get Sodium hexametaphosphate 99 45g/L, water glass 6g/L, wolframic acid is received 4g/L, molybdic acid is received the glycerol preparation alkaline electrolysis solution of 2g/L and 10ml/L, the solution pH value for preparing is adjusted between 8～12 with phosphoric acid, on aluminium tyre mould, adorns firm conductive fixture, be immersed in the alkaline electrolysis solution, anchor clamps connect positive source, the cell body stainless steel plate connects negative pole, by power supply aluminium tyre mould is progressively applied pulsed voltage, and voltage progressively rises, peak-peak voltage 500V, current density 1～3A/dm
2, frequency of utilization is 600HZ, and the temperature of control alkaline electrolysis solution is between 20～30 ℃, and the treatment time is 30 minutes, takes out aluminium tyre mould then and cleans.The aluminium tyre mould surface generates the ceramic layer of aluminium sesquioxide after treatment, the result that records who records five different positionss with the ED-200 eddy current thickness meter is 21 μ m, 23 μ m, 18 μ m, 19 μ m, 18 μ m, mean thickness is 20 μ, with model is the microhardness machine measurement of HX-1000, hardness is between HV870～1000, average hardness is 970HV, and the 5%NaCl salt mist experiment did not have corrosion phenomenon more than 300 hours.
Embodiment 2: use Microarc Oxidation Surface Treatment equipment, the equipment significant parameter is 200KW, 1500HZ, 800V, the alkaline electrolysis tank liquor is that silicate is solution, press solute weight and pure water solvent volume ratio, get Sodium hexametaphosphate 99 15g/L, water glass 25/L, molybdic acid is received 6g/L, and wolframic acid is received the glycerol preparation alkaline electrolysis solution of 8g/L and 10ml/L, and the solution pH value for preparing is adjusted between 8～12 with phosphoric acid, on aluminium tyre mould, adorn firm conductive fixture, be immersed in the alkaline electrolysis solution, anchor clamps connect positive source, and the cell body stainless steel plate connects negative pole, by power supply aluminium tyre mould is progressively applied pulsed voltage, voltage progressively rises, peak-peak voltage 800V, current density 1～3A/dm
2, frequency of utilization is 1500HZ, and the temperature of control alkaline electrolysis solution is between 20～30 ℃, and the treatment time is 60 minutes, takes out aluminium tyre mould then and cleans.The aluminium tyre mould surface generates the ceramic layer of aluminium sesquioxide after treatment, the result that records who records five different positionss with the ED-200 eddy current thickness meter is 53 μ m, 52 μ m, 46 μ m, 48 μ m, 50 μ m, mean thickness is 50 μ m, with model is the microhardness machine measurement of HX-1000, hardness is between HV1170～1360, average hardness is 1260HV, and the 5%NaCl salt mist experiment is above no corrosion phenomenon more than 300 hours.
Embodiment 3: use Microarc Oxidation Surface Treatment equipment, the equipment significant parameter is 200KW, 1500HZ, 800V, the alkaline electrolysis tank liquor is that hexametaphosphate is a solution, press solute weight and pure water solvent volume ratio, get Sodium hexametaphosphate 99 30g/L, water glass 10g/L, wolframic acid is received 5g/L, molybdic acid is received the glycerol preparation alkaline electrolysis solution of 4g/L and 10ml/L, the solution pH value for preparing is adjusted between 8～12 with phosphoric acid, on aluminium tyre mould, adorns firm conductive fixture, be immersed in the alkaline electrolysis solution, anchor clamps connect positive source, the cell body stainless steel plate connects negative pole, by power supply aluminium tyre mould is progressively applied pulsed voltage, and voltage progressively rises, peak-peak voltage 600V, current density 1～3A/dm
2, frequency of utilization is 1000HZ, and the temperature of control alkaline electrolysis solution is between 20～30 ℃, and the treatment time is 40 minutes, takes out aluminium tyre mould then and cleans.The aluminium tyre mould surface generates the ceramic layer of aluminium sesquioxide after treatment, the result that records who records five different positionss with the ED-200 eddy current thickness meter is 32 μ m, 34 μ m, 35 μ m, 37 μ m, 37 μ m, mean thickness is 35 μ m, with model is the microhardness machine measurement of HX-1000, hardness is between HV1080～1260, average hardness is 1190HV, and the 5%NaCl salt mist experiment is above no corrosion phenomenon more than 300 hours.
The present invention uses the method for Microarc Oxidation Surface Treatment, and aluminium tyre mould is carried out surface treatment, and the ceramic layer thickness of aluminium tyre mould surface generation is 20 μ m～50 μ m after treatment, and hardness is between 800HV～1300HV.This rete and matrix metal metallurgical binding, fine and close evenly, have high rigidity, high-wearing feature and with the strong bonding force of matrix, improve aluminium tyre mould work-ing life; Ceramic layer with the α of sintering metal weave construction mutually with γ mutually aluminium sesquioxide be main component, the inorganic film that does not contain heavy metal and compound thereof, satisfy wear-resisting, the anticorrosion and polishing effect of mould, improve the work-ing life of mould greatly, recyclable repeated use, favourable energy-conserving and environment-protective.
Differential arc oxidation is a kind of emerging process for treating surface that grows up on the anodic oxidation basis, and it is a sintering metal crystalline structure layer at the rete that matrix surface generates, and has higher hardness, antiseptic power and the bonding force stronger with matrix; Simultaneously aluminium tyre mould is a kind of widely used mould because it is in light weight, and its surperficial low strength, low solidity to corrosion make people seek a kind of method that makes its surface modification always.That method of the present invention has solved preferably is in light weight, surface strength is high and corrosion resistant problem, and the aluminium tyre mould of making of method of the present invention improves its surperficial intensity and corrosion resistance greatly, has improved the work-ing life of aluminium tyre mould.
Claims (7)
1. a surface treatment method of aluminium tyre mould may further comprise the steps: one, aluminium tyre mould is installed on the anchor clamps, is immersed in the alkaline electrolysis liquid bath; Two, anchor clamps connect positive pole, and the cell body stainless steel plate connects negative electrode, constantly workpiece are applied pulsed voltage to crest voltage by power supply, 30～60 minutes time.
2. surface treatment method of aluminium tyre mould according to claim 1 is characterized in that: peak-peak voltage is 500V～750V between described workpiece and the negative electrode, current density 1～3A/dm
2, frequency is 600HZ～1500HZ.
3. surface treatment method of aluminium tyre mould according to claim 2 is characterized in that: described when adding pulsed voltage on workpiece, the temperature in the alkaline electrolyte is controlled at 20～30 ℃ scope.
4. surface treatment method of aluminium tyre mould according to claim 3, it is characterized in that: described alkaline electrolyte comprises that solute weight and pure water solvent volume ratio are: Sodium hexametaphosphate 99 15g/L～45g/L, water glass 6g/L～25g/L, wolframic acid receive 4g/L～8g/L, molybdic acid and receive 2g/L～6g/L.
5. surface treatment method of aluminium tyre mould according to claim 4 is characterized in that: the glycerol that contains 10ml/L in the described alkaline electrolyte.
6. surface treatment method of aluminium tyre mould according to claim 5 is characterized in that: contain the phosphoric acid that is useful on the adjustment pH value in the described alkaline electrolyte.
7. surface treatment method of aluminium tyre mould according to claim 6 is characterized in that: the pH value of described alkaline electrolyte is 8～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610033287 CN1824845A (en) | 2006-01-20 | 2006-01-20 | Surface treatment method of aluminium tyre mould |
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| CN 200610033287 CN1824845A (en) | 2006-01-20 | 2006-01-20 | Surface treatment method of aluminium tyre mould |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643278A (en) * | 2013-11-21 | 2014-03-19 | 桂林福冈新材料有限公司 | Micro-arc oxidation method of car part aluminum material |
| CN105483792A (en) * | 2015-12-10 | 2016-04-13 | 苏州市嘉明机械制造有限公司 | Manufacturing technology of hot-pressing-resisting insulation mirror plate |
| CN107313096A (en) * | 2017-08-15 | 2017-11-03 | 肥西县通力机械有限公司 | A kind of drawing mould process of surface treatment |
| CN114657619A (en) * | 2020-12-22 | 2022-06-24 | 富联裕展科技(深圳)有限公司 | Preparation method of metal piece surface oxidation film and metal piece surface oxidation film |
-
2006
- 2006-01-20 CN CN 200610033287 patent/CN1824845A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643278A (en) * | 2013-11-21 | 2014-03-19 | 桂林福冈新材料有限公司 | Micro-arc oxidation method of car part aluminum material |
| CN103643278B (en) * | 2013-11-21 | 2016-08-24 | 桂林福冈新材料有限公司 | A kind of method of auto parts machinery aluminium differential arc oxidation |
| CN105483792A (en) * | 2015-12-10 | 2016-04-13 | 苏州市嘉明机械制造有限公司 | Manufacturing technology of hot-pressing-resisting insulation mirror plate |
| CN107313096A (en) * | 2017-08-15 | 2017-11-03 | 肥西县通力机械有限公司 | A kind of drawing mould process of surface treatment |
| CN114657619A (en) * | 2020-12-22 | 2022-06-24 | 富联裕展科技(深圳)有限公司 | Preparation method of metal piece surface oxidation film and metal piece surface oxidation film |
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