CN101526044A - Dual-alloy compound cylinder body and manufacture method thereof - Google Patents
Dual-alloy compound cylinder body and manufacture method thereof Download PDFInfo
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- CN101526044A CN101526044A CN200910102424A CN200910102424A CN101526044A CN 101526044 A CN101526044 A CN 101526044A CN 200910102424 A CN200910102424 A CN 200910102424A CN 200910102424 A CN200910102424 A CN 200910102424A CN 101526044 A CN101526044 A CN 101526044A
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Abstract
The invention discloses a dual-alloy compound cylinder body and a manufacture method thereof. The cylinder body consists of a cylinder sleeve manufactured by chromium, vanadium, titanium and cast iron alloy as well as a cylinder sleeve cover cast by aluminum alloy; the position of the cylinder sleeve and the position of the cylinder sleeve cover are fixed as a whole by an embedding ring to facilitate the cylinder sleeve and the cylinder sleeve cover to cooperate intimately. The manufacture method comprises: using chromium, vanadium, titanium and cast iron alloy to manufacture the cylinder sleeve; processing the embedding ring; preheating the cylinder sleeve, fixing the cylinder sleeve in a die, and folding the left and right split dies; melting and refining the aluminum alloy twice in a well type furnace, casting the aluminum alloy solution in the dies after passing the test and cooling naturally; after cooling and passing test, cutting out a dead head and a pouring head, removing burrs, and carrying out quench hot treatment to obtain the cylinder body flan; fine processing the cylinder body flan and polishing the inner wall of the cylinder body to finally obtain the cylinder body product. The cylinder body of the invention has smooth and beautiful appearance, high heat transference efficiency, light weight, and is capable of reducing engine power consumption and suitable for engine manufacturers.
Description
Technical field
The present invention relates to the cylinder body of motor, furthermore, relate to the cylinder body of placing moving piston or plunger, also relate to its manufacture method.
Background technique
Cylinder is the empty chamber of in-engine cylindrical shape, and there are the piston or the plunger that are promoted by the pressure or the expansive force of working fluid in the inside.Traditional cylinder block all is ironcasting basically, and the major defect of this traditional product is that heat transfer is poor, and profile is coarse, not attractive in appearance, the cylinder body heaviness.For this reason, people have studied some new technological schemes, as No. 200410089929.2, Chinese patent application part " valve device with cylinder stop mechanism of ic engine ", number 200410103454.8 " the anodic oxide coating formation method of aluminum alloy cylinder inner wall ", number 200510104293.9 " cylinder of internal-combustion engine (one) ", number 200510104294.3 " cylinder of internal-combustion engine (two) ", number 200680032147.2 " method of countercylinder lining outer surface plated film ", number 200710014895.4 " a kind of steel cylinder jacket surface treatment process ", number 200710114379.9 " a kind of ceramic cylinder and preparation technology thereof " etc.These technology can be improved cylinder performance in a certain respect, and what have can improve the coefficient of overall heat transmission, and what have can be anticorrosive, and what have can increase the service life.But up to now, still do not have the various shortcomings that a kind of scheme can be improved original cylinder block, do not have the patent application of adopting the pairing gold to make cylinder block yet.
Summary of the invention
Purpose of the present invention just provides a kind of dual-alloy compound cylinder body, with the profile of improving cylinder block, improve its heat transfer efficiency, alleviate its weight.
Purpose of the present invention just provides the manufacture method of dual-alloy compound cylinder body.
To achieve the above object of the invention, the inventor is through experimental study, and the dual-alloy compound cylinder body that provides is formed by the cylinder sleeve of Cr-V-Ti cast-iron alloy manufacturing with by the cylinder sleeve overcoat of aluminum alloy casting; And become integral body, and both are closely cooperated with inlaying the fixed-site of ring with cylinder sleeve and cylinder sleeve overcoat.
The used Cr-V-Ti cast-iron alloy of above-mentioned cylinder sleeve is the cast-iron alloy that contains chromium 0.25%～0.35% (mass fraction, down together), contains vanadium 0.32%～0.38%, titaniferous 0.05%～0.1%.Cr-V-Ti alloy cast iron Chemical composition is as follows:
The used aluminum alloy of above-mentioned cylinder sleeve overcoat is an aluminium silicon magnesium line aluminium alloy, promptly be main component be siliceous 6.0%～8.0%, contain magnesium 0.2%～0.4%, surplusly be the aluminum alloy of aluminium.
The above-mentioned ring of inlaying goes out with machined into turning at the cylinder liner blank outer wall for the 2-4 road.
The inventor points out: the Cr-V-Ti alloy cast iron is used to make cylinder sleeve, can improve the wear resistance of cylinder liner, and has the characteristics of suitable hardness, oxidative stability, resistance to pitcorrosion and good thermal stability.
The inventor points out again: the characteristics of aluminium silicon magnesium line aluminium alloy are that composition is simple, easily melting and casting, and good casting property, tightness is good, welding and machinability are also relatively good.Be fit to casting thin-walled, large size and various parts complex-shaped, that requirement of strength is not high,, mainly adopt sand casting process and permanent mold casting as the part on housing, gear-box, meter housing and the household appliances of pump etc.
The manufacture method of the dual-alloy compound cylinder body that the inventor provides comprises:
The first step makes cylinder liner blank with the Cr-V-Ti cast-iron alloy according to conventional method;
Second step went out 2-4 road protrusion with lathe in machining turning and inlays ring on the cylinder liner blank outer wall;
The cylinder sleeve preheating that band is inlayed ring of the 3rd step is fixed with steel core in the middle of being placed on the mould of design in advance, then with about two lobe moulds close up, stand-by;
The 4th step melted in No. 1 well-type electric furnace with aluminum alloy, when temperature is raised to 710 ℃ of left and right sides, the aluminium liquid of fusing is transferred in No. 2 well type heat-insulating electric furnaces concise, passed through Meter Test, when temperature rises to 720 ℃ ± 5 ℃, aluminium alloy solution is cast in the mould natural cooling;
The 5th step checked well-tended appearance harmless after treating the part cooling, cutting rising head, cast gate, and quenching heat treatment is carried out in deburring then, obtains the cylinder body semifinished product;
The 6th step by fine finishing, was worked into the size of regulation with product with the cylinder body semifinished product, finish grinded inboard wall of cylinder liner again; Obtain the cylinder body product.
In the above-mentioned technology, described cross section size of inlaying ring is 2mm * 2mm or 3mm * 3mm, and described to inlay ring be 2～4 roads, is generally 3 roads;
The inventor points out: use on cylinder sleeve and inlay ring, carry out the aluminum alloy casting again, it is closely cooperated, the influence of the not only wear-resisting but also effect of not expanded with heat and contract with cold, loosening, good heat dissipation; Promptly solve the shortcoming of traditional cast iron overcoat weak heat-dissipating.
Dual-alloy compound cylinder body provided by the invention has overcome the various shortcoming of cast iron housing, have that smooth-shaped is attractive in appearance, heat transference efficiency is high, lightweight advantage, use this cylinder block, can improve the heat transfer efficiency of motor, this also just means the raising of power or the reduction of oil consumption, meets the requirement of energy-saving and emission-reduction.Two kinds of cylinder body performances are compared as follows:
| Cast iron housing | Dual-alloy compound cylinder body | |
| Heet transfer rate | 56W/mk | 300W/mk |
| Weight | 2.75kg | 2kg |
| Manufacture | Casting | Casting and machining |
| Outward appearance | Coarse | Smooth and beautiful appearance |
Method provided by the invention can be made dual-alloy compound cylinder body, has created condition for motor effectively cuts down the consumption of energy, improves power, is applicable to engine production producer.
Description of drawings
Fig. 1 is the dual-alloy compound cylinder body External view, and Fig. 2 is the External view of cast iron housing, and Fig. 3 is the enlarged diagram that cylinder sleeve combines with the cylinder sleeve overcoat.1 is dual-alloy compound cylinder body among the figure, and 2 is cast iron housing, and 3 is cylinder sleeve, and 4 is the cylinder sleeve overcoat.
Embodiment
Embodiment: adopt the present invention to make dual-alloy compound cylinder body:
The first step with contain chromium 0.25%～0.35%, contain vanadium 0.32%～0.38%, the Cr-V-Ti cast-iron alloy of titaniferous 0.05%～0.1% makes cylinder liner blank according to conventional method;
Second step processed the cross section size with the accurate digital control lathe cutting on the cylinder liner blank outer wall be that 3 protrusions of 2mm * 2mm are inlayed ring;
The cylinder sleeve preheating that band is inlayed ring of the 3rd step is fixed with steel core in the middle of being placed on the mould of design in advance, then with about two lobe moulds close up, stand-by;
The 4th step with siliceous 6%～8%, contain magnesium 0.2%～0.4%, model is that the aluminum alloy of ZL101 melts in No. 1 well-type electric furnace, when temperature is raised to 710 ℃ of left and right sides, transfer in No. 2 well type heat-insulating electric furnaces the aluminium liquid of fusing concise, pass through Meter Test, when temperature rises to 720 ℃ ± 5 ℃, aluminium alloy solution is cast in the mould natural cooling;
The 5th step checked well-tended appearance harmless after treating the part cooling, cutting rising head, cast gate, and quenching heat treatment is carried out in deburring then, obtains the cylinder body semifinished product;
The 6th step, by fine finishing, the key dimension that product is processed is: the cylinder sleeve internal diameter was 92mm～95mm, external diameter 98mm～102mm with the cylinder body semifinished product; The long 117mm of cylinder sleeve overcoat, wide 125mm, high 85mm; The loose 68mm of upper and lower end of cylinder sleeve overcoat radiating fin, the long 80mm of left end.Have 12 radiating fin; Finish grind inboard wall of cylinder liner again; Obtain the cylinder body product.
Claims (4)
1 one kinds of dual-alloy compound cylinder bodies is characterized in that this cylinder body is formed by the cylinder sleeve of Cr-V-Ti cast-iron alloy manufacturing with by the cylinder sleeve overcoat of aluminum alloy casting; Become integral body with inlaying the fixed-site of ring, and both are closely cooperated cylinder sleeve and cylinder sleeve overcoat.
2 dual-alloy compound cylinder bodies as claimed in claim 1, it is characterized in that the used Cr-V-Ti cast-iron alloy of described cylinder sleeve be contain chromium 0.25%～0.35%, contain vanadium 0.32%～0.38%, the cast-iron alloy of titaniferous 0.05%～0.1%; The used aluminum alloy of described cylinder sleeve overcoat is an aluminium silicon magnesium line aluminium alloy, promptly be main component be siliceous 6.0%～8.0%, contain magnesium 0.2%～0.4%, surplusly be the aluminum alloy of aluminium; Described inlay the ring be 2～4 roads, be to process in the turning of cylinder liner blank outer wall.
3 make the method for the described dual-alloy compound cylinder body of claim 1, and its feature comprises:
The first step makes cylinder liner blank with the Cr-V-Ti cast-iron alloy according to conventional method;
Second step became the ring of inlaying of cylinder sleeve at cylinder liner blank outer wall turning processing convex hole;
The cylinder sleeve preheating that band is inlayed ring of the 3rd step is fixed with steel core in the middle of being placed on the mould of design in advance, then with about two lobe moulds close up, stand-by;
The 4th step melted in No. 1 well-type electric furnace with aluminum alloy, when temperature is raised to 710 ℃ of left and right sides, the aluminium liquid of fusing is transferred in No. 2 well type heat-insulating electric furnaces concise, passed through Meter Test, when temperature rises to 720 ℃ ± 5 ℃, aluminium alloy solution is cast in the mould natural cooling;
The 5th step checked well-tended appearance harmless after treating the part cooling, cutting rising head, cast gate, and quenching heat treatment is carried out in deburring then, obtains the cylinder body semifinished product;
The 6th step by fine finishing, was worked into the size of regulation with product with the cylinder body semifinished product, finish grinded inboard wall of cylinder liner again; Obtain the cylinder body product.
4 methods as claimed in claim 3 is characterized in that in the described technology, and described cross section size of inlaying ring is 2mm * 2mm or 3mm * 3mm, and described to inlay ring be 2～4 roads.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910102424A CN101526044A (en) | 2009-01-21 | 2009-01-21 | Dual-alloy compound cylinder body and manufacture method thereof |
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| CN200910102424A CN101526044A (en) | 2009-01-21 | 2009-01-21 | Dual-alloy compound cylinder body and manufacture method thereof |
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| CN101526044A true CN101526044A (en) | 2009-09-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606333A (en) * | 2012-04-01 | 2012-07-25 | 常熟市异型钢管有限公司 | Diesel engine cylinder sleeve, method for processing same and processing mold |
| CN105626294A (en) * | 2016-03-16 | 2016-06-01 | 浙江中马园林机器股份有限公司 | Small four-stroke gasoline engine cast iron cylinder liner cylinder block and die casting technology thereof |
| CN105798268A (en) * | 2016-03-25 | 2016-07-27 | 杨洪彬 | Duplex metal composite engine cylinder block and manufacturing method thereof |
| CN107150115A (en) * | 2017-05-12 | 2017-09-12 | 北京三未科技发展有限公司 | A kind of alloy matrix aluminum engine Cast iron liner composite casting moulding process |
| CN107365885A (en) * | 2017-08-28 | 2017-11-21 | 广东荻赛尔机械铸造股份有限公司 | Diesel Engine Cylinder Block Castings and its casting method |
| CN110653577A (en) * | 2019-10-28 | 2020-01-07 | 宝鸡市隆庆金属材料制品厂 | Titanium alloy end cover, wheel rail detection instrument and processing method of titanium alloy end cover |
-
2009
- 2009-01-21 CN CN200910102424A patent/CN101526044A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606333A (en) * | 2012-04-01 | 2012-07-25 | 常熟市异型钢管有限公司 | Diesel engine cylinder sleeve, method for processing same and processing mold |
| CN102606333B (en) * | 2012-04-01 | 2014-10-22 | 常熟市异型钢管有限公司 | Diesel engine cylinder sleeve, method for processing same and processing mold |
| CN105626294A (en) * | 2016-03-16 | 2016-06-01 | 浙江中马园林机器股份有限公司 | Small four-stroke gasoline engine cast iron cylinder liner cylinder block and die casting technology thereof |
| CN105798268A (en) * | 2016-03-25 | 2016-07-27 | 杨洪彬 | Duplex metal composite engine cylinder block and manufacturing method thereof |
| CN105798268B (en) * | 2016-03-25 | 2018-05-01 | 杨洪彬 | Bimetallic hybrid engine cylinder body and preparation method thereof |
| CN107150115A (en) * | 2017-05-12 | 2017-09-12 | 北京三未科技发展有限公司 | A kind of alloy matrix aluminum engine Cast iron liner composite casting moulding process |
| CN107365885A (en) * | 2017-08-28 | 2017-11-21 | 广东荻赛尔机械铸造股份有限公司 | Diesel Engine Cylinder Block Castings and its casting method |
| CN107365885B (en) * | 2017-08-28 | 2019-01-18 | 广东荻赛尔机械铸造股份有限公司 | Diesel Engine Cylinder Block Castings and its casting method |
| CN110653577A (en) * | 2019-10-28 | 2020-01-07 | 宝鸡市隆庆金属材料制品厂 | Titanium alloy end cover, wheel rail detection instrument and processing method of titanium alloy end cover |
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Application publication date: 20090909 |