CN101158401A - Ceramic cylinder and producing technology thereof - Google Patents
Ceramic cylinder and producing technology thereof Download PDFInfo
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- CN101158401A CN101158401A CNA2007101143799A CN200710114379A CN101158401A CN 101158401 A CN101158401 A CN 101158401A CN A2007101143799 A CNA2007101143799 A CN A2007101143799A CN 200710114379 A CN200710114379 A CN 200710114379A CN 101158401 A CN101158401 A CN 101158401A
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Abstract
A ceramic cylinder and a making technology of the ceramic cylinder belong to aluminium alloy cylinder body and the internal surface hardening disposal technology. The base material of the ceramic cylinder is ASC12 or AC4A; the internal wall of the cylinder is provided with a micro-arc oxidation ceramic layer which comprises the compositions of Gamma-Al<SUB>2</SUB>O<SUB>3</SUB>, and Alpha-Al<SUB>2</SUB>O<SUB>3</SUB>, with the thickness of 15-120 Mu meters. The micro-arc oxidation disposal process takes the cylinder body to be processed as the anode and takes a built-in stainless steel pipe as the cathode; the alkali electrolytic solution passes through the cylinder body from one end of the cylinder body and flows out of the cylinder body from the other end; the control conditions in the process are 450V-750V of the voltage, 20A/dm-40A/dm<SUP>2</SUP>of the current density, 40min-90min of the time; the alkali electrolytic solution has the compositions of 4g/L -8g/L of the Na<SUB>2</SUB>SiO<SUB>3</SUB>, 2g/L-5g/L of the NaOH, 1g/L-3g/L of Na<SUB>3</SUB>AlO<SUB>3</SUB>, 2g/L-4g/L of the Na<SUB>2</SUB>WO<SUB>4</SUB>, 1g/L-3g/L of the EDT Na2; the pH value of the electrolytic solution is 9-13. The temperature of the solution is controlled at 10 DEG C-50 DEG C. The cylinder ceramic disposal operation of the invention is simple and stable, the obtained composite ceramic layer cylinder membrane has thick thickness, high density, high hardness, good anti-wear performance, corrosion resistance, and high-temperature shock resistance.
Description
Technical field
The invention belongs to aluminium alloy cylinder and internal surface technique for hardening treatment, particularly the ceramic treatment technology of aluminium alloy cylinder internal surface.
Background technique
Aluminum alloy becomes one of main material of petrol engine cylinder sleeve owing to its lightweight easy-formation, than slight high, good heat conductivity.But because engine piston is to do quick to-and-fro motion in cylinder, poor-performing such as the wear resistance of aluminium alloy cylinder, impact resistance, corrosion resistance and limited aluminum alloy on engine cylinder-body as the directly application of friction pair.Aluminium alloy cylinder must carry out suitable internal surface cure process.Cylinder requires the operating temperature height, and thermal shock is big, and the speed high-speed friction is frequent, and ordinary casing is difficult to satisfy under the operating mode harsh conditions works, and is restricting the raising of motor combination property for a long time.Castingin iron cover cylinder complicated process of preparation, interface commonly used are relatively poor in conjunction with mass stability; Nickel plating, chromium process and composite depositing process are serious to environment pollution, do not reach eco-friendly requirement.Also have silicon carbide compound pottery (patent No. 93115277.1), need the high temperature secondary sintering, technology difficulty is big.
Summary of the invention
Main purpose of the present invention is, eliminate in the existing Al alloy composite bucket cylinder technology, cost height, the heavy shortcoming of pollution, provide a kind of easy and simple to handle stable again, pollution-free, have the alloy matrix aluminum cylinder and the preparation technology thereof of extraordinary wear resistance, corrosion-resistant, composite ceramic layer that the high temperature resistance impact is good.
The solution of the present invention is: a kind of ceramic cylinder is on the cylinder inner wall of ADC12 or AC4A at host material, and one deck ceramic layer is arranged, and it is characterized in that described ceramic layer is an arc differential oxide ceramic layer, and its component comprises γ-Al
2O
3, α-Al
2O
3, the thickness of ceramic layer is 15-120 μ m.
The chemical composition of above-mentioned ADC12 is Cu:1.5-3.5, Si:9.6-12, Mg:0.3, Zn:1, Fe:1.3, Mn:0.5, Ni:0.5, surplus Al.The chemical composition of AC4A is Cu:0.25, Si:8-10, Mg:0.3-0.6, Zn:0.25, Fe:0.55, Mn:0.3-0.6, Ni:0.1, Ti:0.2 surplus Al.
Described ceramic layer thickness after honing processes can be 15-50 μ m.
The preparation technology of above-mentioned ceramic cylinder is characterized in that: manufacturing process be with pending cylinder body as anode, built-in Stainless Steel Tube as negative electrode, will be with alkaline electrolysis solution from cylinder body one end by cylinder body, flow out from the other end of cylinder body; The condition of controlling in the manufacturing process is: voltage 450V-750V, current density is 20-40A/dm
2, the time is 40-90min, described power supply adopts asymmetric positive negative pulse stuffing high-voltage power; The alkaline electrolysis solution compolision is Na
2SiO
3: 4-8g/L, NaOH:2-5g/L Na
3AlO
3: 1-3g/L: Na
2WO
42-4g/L, EDT disodium: 1-3g/L, electrolyte PH value are 9-13.Solution temperature is controlled at 10-50 ℃.
The ceramic treatment device mainly contains power supply and voltage control system, cooling system, electrolytic bath, stirring system, cylinder shielding frock etc. and partly forms.Power supply and voltage control system provide handles required high-tension electricity; Cooling system can guarantee that the temperature of electrolytic solution is in processing range; Electrolytic bath is made by stainless steel usually, the double negative electrode of doing, interior Sheng Electrolytic solution; Stirring system can improve the uniformity of electrolytic solution in the solution; Cylinder shielding frock can guarantee that non-treated side must not contact with electrolytic solution.
The present invention adopts 100-300KW particular power source and automatic control system and deionized water to be mixed with the electrolytic solution of different components.According to technical requirements, in electrolytic solution, add different additive such as aluminate, sodium tungstate, compliance, embedding hiding property, the wear resistance of purpose in order to improve ceramic layer, and resistance to sudden heating.In the ordinary course of things, electrolyte PH value is 9-12 to the maximum, and the electrolyte component composition can be: Na
2SiO
3: 4-8g/L, NaOH2-5g/L:Na
3AlO
3: 1-3g/L, Na
2WO
4: 2-4g/L, electrolyte PH value are 9-13.Optimize process parameters such as process current density, voltage, time control: the control of ceramic treatment current density of the present invention, voltage, time control, electrolyte temperature is to improve the key that the cylinder working surface generates the ceramic layer quality.Require constand current, constand voltage control gear and electrolysis heat exchange temperature controlling device are set respectively: process voltage generally is controlled in the 450-750V scope, and current density is controlled at 20-40A/dm
2, electrolyte temperature generally is controlled in the 10-50 ℃ of scope.Form and increase thickness along with the prolongation ceramic layer in processing time is also continuous thereupon, the processing time is long more, and the thickness of ceramic layer is thick more, but the roughness on surface also increases thereupon.Can require to decide the adjustment of parameter according to the ceramic layer thickness of cylinder, general ceramic layer thickness is 50-120 μ m.Can obtain the ceramic layer of 15-50 μ m after the cylinder honing
Cylinder ceramic treatment of the present invention is easy and simple to handle stable again, in whole ceramic treatment process, need not change the concentration of electrolytic solution, reusable, the composite ceramic layer cylinder rete that obtains is thick, consistency is high, hardness is high, have extraordinary wear resistance, corrosion-resistant, high temperature resistance impact.
Description of drawings
Fig. 1 is the aluminum alloy ceramic cylinder schematic representation of interior pore area arc differential oxide ceramic layer.
Fig. 2 puts schematic representation for the makeup of cylinder bores pottery.
Among the figure, 1. cylinder matrix, 2. ceramic layer, 3. bore area, 4. anode terminal, 5. electrolytic bath, 6. insulation tank, 7. stirring system, 8. anode electrode rod, 9. frock, 10. cylinder, 11. electrolytic solution, 12. high-voltage poweies, 13. control system.
Embodiment
Embodiment one:
With ADC12 material cylinder is example: electrolytic solution (11) is for being main component with water glass, and each composition and total volume ratio dispose solution, Na
2SiO
3: 7g/L, NaOH 4g/L, Na
3AlO
32g/L, Na
2WO
4: 4g/L EDT disodium: 3g/L is adjusted at 13 with pH value.The Electrolytic solution that the configures inlet pipe of leading from inferior part of the cylinder block is flow to, flow out from the mouth pipe on top, solution flows in cylinder body by circulating cooling system.Built-in Stainless Steel Tube connects power cathode, and cylinder body connects power anode.Begin in 4 minutes, by power supply cylinder body being applied current density is 20A/dm
2, by power supply cylinder body being applied current density after 4 minutes is 20-28A/dm
2, current density changed along with the increase of ceramic layer thickness before processing finished.Utilize the stirring cooling electrolyte temperature of air pump to be 45-55 ℃, 55 minutes processing times are at the Al of inner surface of cylinder block growth in situ one deck densification
2O
3Ceramic layer.Through measuring thickness is 100-110 μ m, can obtain economic ceramic layer thickness through honing.
Embodiment two:
With AC4A material cylinder is example: electrolytic solution is for being main component with water glass, and each composition and total volume ratio dispose solution, Na
2SiO
3: 4ml/L, NaOH 2.5g/L, Na
3AlO
32.5g/L, Na
2WO
4: 3g/L EDT disodium: 2.5g/L is adjusted at 10 with pH value.The Electrolytic solution that the configures inlet pipe of leading from inferior part of the cylinder block is flow to, flow out from the mouth pipe on top, solution flows in cylinder body by circulating cooling system.Built-in Stainless Steel Tube connects power cathode, and cylinder body connects power anode.Begin in 8 minutes, by power supply cylinder body being applied current density is 22A/dm
2, by power supply cylinder body being applied current density after 8 minutes is 25-30A/dm
2, current density changed along with the increase of ceramic layer thickness before processing finished.Utilize the stirring cooling electrolyte temperature of air pump to be 25-35 ℃, 40 minutes processing times will be at the Al of inner surface of cylinder block growth in situ one deck densification
2O
3Ceramic layer.Through measuring thickness is 65-75 μ m, can obtain economic ceramic layer thickness through honing.According to different needs, can control the thickness of ceramic layer, take all factors into consideration engine performance and Economy, optimum thickness is monolateral to be 60-120 μ m, the optimal economic thickness after the honing is 15-50 μ m.
Ceramic layer behind above-mentioned two kinds of treatment process is carried out hardness and wear test: all more than HV900, the wear test time reached more than 600 hours its micro-penetration hardness.
Claims (4)
1. a ceramic cylinder is on the cylinder inner wall of ADC12 or AC4A at host material, and one deck ceramic layer is arranged, and it is characterized in that described ceramic layer is an arc differential oxide ceramic layer, and the ceramic layer component comprises γ-Al
2O
3, α-Al
2O
3, the thickness of ceramic layer is 15-120 μ m.
2. ceramic cylinder as claimed in claim 1 is characterized in that described ceramic layer thickness is 15-50 μ m.
3. the preparation technology of a ceramic cylinder is characterized in that: manufacturing process be with pending cylinder body as anode, built-in Stainless Steel Tube as negative electrode, will be with alkaline electrolysis solution from cylinder body one end by cylinder body, flow out from the other end of cylinder body; The condition of controlling in the manufacturing process is: voltage 450V-750V, current density is 20-40A/dm
2, the time is 40-90min, described power supply adopts asymmetric positive negative pulse stuffing high-voltage power; The alkaline electrolysis solution compolision is Na
2SiO
3: 4-8g/L, NaOH:2-5g/L Na
3AlO
3: 1-3g/L: Na
2WO
42-4g/L, EDT disodium: 1-3g/L, electrolyte PH value are 9-13.Solution temperature is controlled at 10-50 ℃.
4. the preparation technology of a kind of ceramic cylinder as claimed in claim 3 is characterized in that the required ceramic treatment device of manufacturing process mainly contains power supply and voltage control system, cooling system, electrolytic bath, stirring system, cylinder shielding frock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101143799A CN101158401A (en) | 2007-11-20 | 2007-11-20 | Ceramic cylinder and producing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101143799A CN101158401A (en) | 2007-11-20 | 2007-11-20 | Ceramic cylinder and producing technology thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101158401A true CN101158401A (en) | 2008-04-09 |
Family
ID=39306588
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|---|---|---|---|
| CNA2007101143799A Pending CN101158401A (en) | 2007-11-20 | 2007-11-20 | Ceramic cylinder and producing technology thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691086A (en) * | 2012-06-18 | 2012-09-26 | 哈尔滨工业大学 | Cylinder hole ceramic-forming treatment method for aluminum alloy engine cylinder body |
| CN103409782A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Microarc oxidation-based surface super-hydrophobicity treatment technology for aluminium material |
| CN104384836A (en) * | 2014-09-23 | 2015-03-04 | 温岭市金港机械制造厂（普通合伙） | Inner surface treatment method for ceramic air cylinder of oilless compressor |
| CN104948332A (en) * | 2015-06-16 | 2015-09-30 | 中国科学院力学研究所 | Cylinder barrel of total-aluminum engine cylinder body and preparation method for ceramic protective layer |
| CN106702454A (en) * | 2017-01-24 | 2017-05-24 | 西安天奥新材料科技有限公司 | Surface treatment method of aluminum alloy shuttle for spinning and wear resistant shuttle |
| CN110804752A (en) * | 2019-11-18 | 2020-02-18 | 福建永强力加动力设备有限公司 | Internal combustion engine cylinder body internal surface treatment process |
| CN110983405A (en) * | 2019-11-20 | 2020-04-10 | 福建永强力加动力设备有限公司 | Treating agent applied to internal metal parts of internal combustion engine and preparation method thereof |
| CN112663106A (en) * | 2020-12-03 | 2021-04-16 | 盐城工学院 | Preparation method of corrosion-resistant micro-arc oxidation coating |
| CN112941595A (en) * | 2021-02-04 | 2021-06-11 | 新昌县迪嘉轻金属科技有限公司 | Preparation method of composite ceramic membrane applied to inner wall of new energy automobile cylinder |
-
2007
- 2007-11-20 CN CNA2007101143799A patent/CN101158401A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691086A (en) * | 2012-06-18 | 2012-09-26 | 哈尔滨工业大学 | Cylinder hole ceramic-forming treatment method for aluminum alloy engine cylinder body |
| CN103409782A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Microarc oxidation-based surface super-hydrophobicity treatment technology for aluminium material |
| CN103409782B (en) * | 2013-07-29 | 2016-06-29 | 西安交通大学 | Aluminum surface super-hydrophobic based on micro-arc oxidation processes technique |
| CN104384836A (en) * | 2014-09-23 | 2015-03-04 | 温岭市金港机械制造厂（普通合伙） | Inner surface treatment method for ceramic air cylinder of oilless compressor |
| CN104948332A (en) * | 2015-06-16 | 2015-09-30 | 中国科学院力学研究所 | Cylinder barrel of total-aluminum engine cylinder body and preparation method for ceramic protective layer |
| CN106702454A (en) * | 2017-01-24 | 2017-05-24 | 西安天奥新材料科技有限公司 | Surface treatment method of aluminum alloy shuttle for spinning and wear resistant shuttle |
| CN106702454B (en) * | 2017-01-24 | 2018-11-09 | 西安天奥新材料科技有限公司 | The surface treatment method and wear-resisting shuttle of weaving aluminium alloy shuttle |
| CN110804752A (en) * | 2019-11-18 | 2020-02-18 | 福建永强力加动力设备有限公司 | Internal combustion engine cylinder body internal surface treatment process |
| CN110983405A (en) * | 2019-11-20 | 2020-04-10 | 福建永强力加动力设备有限公司 | Treating agent applied to internal metal parts of internal combustion engine and preparation method thereof |
| CN112663106A (en) * | 2020-12-03 | 2021-04-16 | 盐城工学院 | Preparation method of corrosion-resistant micro-arc oxidation coating |
| CN112941595A (en) * | 2021-02-04 | 2021-06-11 | 新昌县迪嘉轻金属科技有限公司 | Preparation method of composite ceramic membrane applied to inner wall of new energy automobile cylinder |
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