CN108690925A - A kind of aluminium silicon titanium alloy cylinder jacket and its processing technology - Google Patents
A kind of aluminium silicon titanium alloy cylinder jacket and its processing technology Download PDFInfo
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- CN108690925A CN108690925A CN201810609847.8A CN201810609847A CN108690925A CN 108690925 A CN108690925 A CN 108690925A CN 201810609847 A CN201810609847 A CN 201810609847A CN 108690925 A CN108690925 A CN 108690925A
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- cylinder jacket
- titanium alloy
- aluminium silicon
- silicon titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
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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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of aluminium silicon titanium alloy cylinder jacket and its processing technology, which is:Si:3-8%, Ti:3-8%, C:0.01-0.03%, Ni:2-4%, Cr:0.5-1.5%, Sr:0.1-0.3%, Mn:0.6-1%, Ca:0.4-0.9%, S:0.01-0.03%, remaining is aluminium;The fatigue life of the cylinder jacket of making improves 2.5 times, microhardness improves 25%, wearability and improves 60%, corrosion resistance raising 50%, improve the mechanical performance of cylinder jacket, improve incident cavitation pitting, corrosion and fatigue problems of crack, extend the service life of cylinder jacket, reduce the input of technological equipment, reduce manufacturing cost, shorten the process-cycle, energy conservation and environmental protection, processing without cutting output is carried out to metal surface, the precision of cylinder jacket is made to increase substantially, Ra values≤be less than or equal to 0.1.
Description
Technical field
The invention belongs to technical field of engines, and in particular to a kind of aluminium silicon titanium alloy cylinder jacket and its processing technology.
Background technology
Cylinder jacket collectively forms the working space of cylinder with cylinder cap and piston, is the helical pitch of reciprocating motion of the pistons, outer to have
Cooling water cooling, subjects mechanical damage and corrosion failure.
Existing cylinder jacket generally using phosphorous or boracic antiwear cast iron alloy or seamless cold drawing steel tube as material come
Production and processing, processing technology is complicated and there are many deficiencies:
(1), process is various, need to employ a variety of mechanical equipments, such as lathe, boring machine, inner circle mill, peripheral milling and honing machine, because
This production cycle is long, manufacturing cost is high;
(2), the poor corrosion resistance of the materials such as cast iron class or structural steel is opened with cooling medium surface layer easily corrosion fatigue
It splits, therefore service life is short;
(3), it is to improve wear-resisting property, inner surface of cylinder liner generally carries out chromium plating (spongy chromium plating, the chromium plating of store oil site etc.), nitrogen
After the processing such as change or phosphatization surface roughness is reduced by grinding means.These coating or nitration case are very thin, especially nitrogenize
Layer only has 0.02~0.15mm, and wearing layer is easy to be partially removed after grinding.
Invention content
The purpose of the present invention is to provide a kind of aluminium silicon titanium alloy cylinder jacket and its processing technologys so that the performance of cylinder block
It increases substantially, while additionally providing the processing technology of cylinder jacket, simple for process, equipment investment is few, reduces manufacturing cost, contracting
The short process-cycle.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of aluminium silicon titanium alloy cylinder jacket, the cylinder jacket constituent are:Si:3-8%, Ti:3-8%, C:0.01-
0.03%, Ni:2-4%, Cr:0.5-1.5%, Sr:0.1-0.3%, Mn:0.6-1%, Ca:0.4-0.9%, S:0.01-
0.03%, remaining is aluminium.
A kind of processing technology of aluminium silicon titanium alloy cylinder jacket, specifically includes following steps:
S1, dispensing is carried out by cylinder jacket constituent mass percent;
S2, it uniformly sends coating forth in mold, after coating drying, mold is moved into nitrogen protection room;
S3, it the dispensing in step S1 is poured into carries out melting in medium-frequency induction furnace, molten condition aluminium silicon titanium alloy is come out of the stove
Temperature is 700-750 DEG C;Molten condition aluminium silicon titanium alloy is poured into mold, cylinder jacket is cast as by the way of centrifugal casting
Blank;
S4, rough turn, each made allowance 0.5- is carried out to the outer circle of the liner blank obtained in S3, endoporus by numerically controlled lathe
0.8mm;
S5, the liner blank for obtaining S4 stress relief annealing in vacuum plant, heat preservation, the type of cooling is oil cooling;
S6, smart car is carried out to the endoporus of the obtained liner blanks of S5 by high precision digital control lathe;
S7, the liner blank for obtaining S6 carry out plasma nitrided, heat preservation 4h in vacuum plasma nitriding furnace;
S8, energy processing is carried out to the bore areas of the obtained liner blanks of S7, make surface roughness reach Ra values≤
0.1;
S9, carry out smart car to the outer circles of the obtained liner blanks of S8, and to the surface of the obtained liner blanks of S8 into
Row energy is processed, and cutting speed 90-110mm/min, amount of feeding 0.1-0.25mm/r are to get to aluminium silicon titanium alloy cylinder jacket.
Further, the annealing temperature described in step S5 is 250-300 DEG C;Soaking time is 120-240min.
Further, the holding temperature described in step S7 is 300-350 DEG C, and nitride thickness is 0.05~0.1mm.
Further, in the processing of step S8 energy, cutting speed 90-110mm/min, amount of feeding 0.1-0.25mm/r.
Further, in step S9, to the aluminium silicon titanium alloy cylinder jacket of making be respectively adopted three-coordinate instrument and cylindricity instrument into
Performing check.
Beneficial effects of the present invention:
A kind of aluminium silicon titanium alloy cylinder jacket provided by the invention and its processing technology, the fatigue life of the cylinder jacket of making carry
2.5 times high, microhardness improves 25%, wearability and improves 60%, corrosion resistance raising 50%, improves the machinery of cylinder jacket
Performance improves incident cavitation pitting, corrosion and fatigue problems of crack, extends the service life of cylinder jacket, reduce technique
The input of equipment, reduces manufacturing cost, shortens the process-cycle, and energy conservation and environmental protection to metal surface without cutting output add
Work makes the precision of cylinder jacket increase substantially, Ra values≤be less than or equal to 0.1.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Embodiment 1
A kind of aluminium silicon titanium alloy cylinder jacket, the cylinder jacket constituent are:Si:8%, Ti:6%, C:0.02%, Ni:
2%, Cr:0.5%, Sr:0.3%, Mn:0.6%, Ca:0.5%, S:0.01%, remaining is aluminium;
A kind of processing technology of aluminium silicon titanium alloy cylinder jacket, specifically includes following steps:
S1, dispensing is carried out by cylinder jacket constituent mass percent;
S2, it uniformly sends coating forth in mold, after coating drying, mold is moved into nitrogen protection room;
S3, it the dispensing in step S1 is poured into carries out melting in medium-frequency induction furnace, molten condition aluminium silicon titanium alloy is come out of the stove
Temperature is 700 DEG C;Molten condition aluminium silicon titanium alloy is poured into mold, cylinder toison is cast as by the way of centrifugal casting
Base;
S4, rough turn, each made allowance is carried out to the outer circle of the liner blank obtained in S3, endoporus by numerically controlled lathe
0.5mm;
S5, the liner blank for obtaining S4 stress relief annealing in vacuum plant, annealing temperature are 250 DEG C, heat preservation
120min, the type of cooling are oil cooling;
S6, smart car is carried out to the endoporus of the obtained liner blanks of S5 by high precision digital control lathe;
S7, the liner blank for obtaining S6 carry out plasma nitrided, temperature 300 in vacuum plasma nitriding furnace
DEG C, keep the temperature 4h, nitride thickness 0.06mm;
S8, energy processing, cutting speed 90mm/min, the amount of feeding are carried out to the bore area of the obtained liner blanks of S7
0.1mm/r makes surface roughness reach value≤0.1 Ra;
S9, carry out smart car to the outer circles of the obtained liner blanks of S8, and to the surface of the obtained liner blanks of S8 into
Row energy is processed, cutting speed 110mm/min, amount of feeding 0.25mm/r, and back engagement of the cutting edge 0.15mm is to get to aluminium silicon titanium alloy gas
Cylinder sleeve;Three-coordinate instrument is respectively adopted to the aluminium silicon titanium alloy cylinder jacket of making and cylindricity instrument is tested.
The fatigue life of the aluminium silicon titanium alloy cylinder jacket of the present embodiment improves 2.5 times, and microhardness improves 25%, wearability
It improves 60%, corrosion resistance and improves 50%.
Embodiment 2
A kind of aluminium silicon titanium alloy cylinder jacket, the cylinder jacket constituent are:Si:3%, Ti:5%, C:0.03%, Ni:
2%, Cr:0.5%, Sr:0.1%, Mn:0.6%, Ca:0.9%, S:0.03%, remaining is aluminium;
A kind of processing technology of aluminium silicon titanium alloy cylinder jacket, specifically includes following steps:
S1, dispensing is carried out by cylinder jacket constituent mass percent;
S2, it uniformly sends coating forth in mold, after coating drying, mold is moved into nitrogen protection room;
S3, it the dispensing in step S1 is poured into carries out melting in medium-frequency induction furnace, molten condition aluminium silicon titanium alloy is come out of the stove
Temperature is 750 DEG C;Molten condition aluminium silicon titanium alloy is poured into mold, cylinder toison is cast as by the way of centrifugal casting
Base;
S4, rough turn, each made allowance is carried out to the outer circle of the liner blank obtained in S3, endoporus by numerically controlled lathe
0.8mm;
S5, the liner blank for obtaining S4 stress relief annealing in vacuum plant, annealing temperature are 300 DEG C, heat preservation
240min, the type of cooling are oil cooling;
S6, smart car is carried out to the endoporus of the obtained liner blanks of S5 by high precision digital control lathe;
S7, the liner blank for obtaining S6 carry out plasma nitrided, temperature 350 in vacuum plasma nitriding furnace
DEG C, keep the temperature 4h, nitride thickness 0.1mm;
S8, energy processing, cutting speed 110mm/min, feeding are carried out to the bore area of the obtained liner blanks of S7
0.25mm/r is measured, surface roughness is made to reach value≤0.1 Ra;
S9, carry out smart car to the outer circles of the obtained liner blanks of S8, and to the surface of the obtained liner blanks of S8 into
Row energy is processed, cutting speed 90mm/min, amount of feeding 0.15mm/r, and back engagement of the cutting edge 0.1mm is to get to aluminium silicon titanium alloy cylinder
Set;Three-coordinate instrument is respectively adopted to the aluminium silicon titanium alloy cylinder jacket of making and cylindricity instrument is tested.
The fatigue life of the aluminium silicon titanium alloy cylinder jacket of the present embodiment improves 2.3 times, and microhardness improves 20%, wearability
It improves 55%, corrosion resistance and improves 52%.
Embodiment 3
A kind of aluminium silicon titanium alloy cylinder jacket, the cylinder jacket constituent are:Si:5%, Ti:8%, C:0.01%, Ni:
4%, Cr:1%, Sr:0.2%, Mn:0.8%, Ca:0.5%, S:0.02%, remaining is aluminium;
A kind of processing technology of aluminium silicon titanium alloy cylinder jacket, specifically includes following steps:
S1, dispensing is carried out by cylinder jacket constituent mass percent;
S2, it uniformly sends coating forth in mold, after coating drying, mold is moved into nitrogen protection room;
S3, it the dispensing in step S1 is poured into carries out melting in medium-frequency induction furnace, molten condition aluminium silicon titanium alloy is come out of the stove
Temperature is 720 DEG C;Molten condition aluminium silicon titanium alloy is poured into mold, cylinder toison is cast as by the way of centrifugal casting
Base;
S4, rough turn, each made allowance is carried out to the outer circle of the liner blank obtained in S3, endoporus by numerically controlled lathe
0.7mm;
S5, the liner blank for obtaining S4 stress relief annealing in vacuum plant, annealing temperature are 280 DEG C, heat preservation
200min, the type of cooling are oil cooling;
S6, smart car is carried out to the endoporus of the obtained liner blanks of S5 by high precision digital control lathe;
S7, the liner blank for obtaining S6 carry out plasma nitrided, temperature 320 in vacuum plasma nitriding furnace
DEG C, keep the temperature 4h, nitride thickness 0.08mm;
S8, energy processing, cutting speed 100mm/min, feeding are carried out to the bore area of the obtained liner blanks of S7
0.2mm/r is measured, surface roughness is made to reach value≤0.1 Ra;
S9, carry out smart car to the outer circles of the obtained liner blanks of S8, and to the surface of the obtained liner blanks of S8 into
Row energy is processed, cutting speed 100mm/min, amount of feeding 0.2mm/r, and back engagement of the cutting edge 0.11mm is to get to aluminium silicon titanium alloy gas
Cylinder sleeve;Three-coordinate instrument is respectively adopted to the aluminium silicon titanium alloy cylinder jacket of making and cylindricity instrument is tested.
The fatigue life of the aluminium silicon titanium alloy cylinder jacket of the present embodiment improves 2.3 times, and microhardness improves 24%, wearability
It improves 62%, corrosion resistance and improves 50%.
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art
It makes various modifications or additions to the described embodiments or substitutes by a similar method, without departing from invention
Design or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (6)
1. a kind of aluminium silicon titanium alloy cylinder jacket, it is characterised in that:The cylinder jacket constituent is:Si:3-8%, Ti:3-8%, C:
0.01-0.03%, Ni:2-4%, Cr:0.5-1.5%, Sr:0.1-0.3%, Mn:0.6-1%, Ca:0.4-0.9%, S:
0.01-0.03%, remaining is aluminium.
2. a kind of processing technology of aluminium silicon titanium alloy cylinder jacket, it is characterised in that:Specifically include following steps:
S1, dispensing is carried out by cylinder jacket constituent mass percent;
S2, it uniformly sends coating forth in mold, after coating drying, mold is moved into nitrogen protection room;
S3, it the dispensing in step S1 is poured into carries out melting in medium-frequency induction furnace, molten condition aluminium silicon titanium alloy tapping temperature
It is 700-750 DEG C;Molten condition aluminium silicon titanium alloy is poured into mold, cylinder toison is cast as by the way of centrifugal casting
Base;
S4, rough turn, each made allowance 0.5- is carried out to the outer circle of the liner blank obtained in S3, endoporus by numerically controlled lathe
0.8mm;
S5, the liner blank for obtaining S4 stress relief annealing in vacuum plant, heat preservation, the type of cooling is oil cooling;
S6, smart car is carried out to the endoporus of the obtained liner blanks of S5 by high precision digital control lathe;
S7, the liner blank for obtaining S6 carry out plasma nitrided, heat preservation 4h in vacuum plasma nitriding furnace;
S8, energy processing is carried out to the bore area of the obtained liner blanks of S7, surface roughness is made to reach value≤0.1 Ra;
S9, smart car is carried out to the outer circle of the obtained liner blanks of S8, and the surface of the obtained liner blanks of S8 is added
Work, cutting speed 90-110mm/min, amount of feeding 0.1-0.25mm/r are to get to aluminium silicon titanium alloy cylinder jacket.
3. a kind of processing technology of aluminium silicon titanium alloy cylinder jacket according to claim 2, it is characterised in that:Described in step S5
Annealing temperature be 250-300 DEG C;Soaking time is 120-240min.
4. a kind of processing technology of aluminium silicon titanium alloy cylinder jacket according to claim 2, it is characterised in that:Described in step S7
Holding temperature be 300-350 DEG C, nitride thickness 0.05-0.1mm.
5. a kind of processing technology of aluminium silicon titanium alloy cylinder jacket according to claim 2, it is characterised in that:Step S8 energy
In processing, cutting speed 90-110mm/min, amount of feeding 0.1-0.25mm/r.
6. a kind of processing technology of aluminium silicon titanium alloy cylinder jacket according to claim 2, it is characterised in that:In step S9,
Three-coordinate instrument is respectively adopted to the aluminium silicon titanium alloy cylinder jacket of making and cylindricity instrument is tested.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609847.8A CN108690925A (en) | 2018-06-13 | 2018-06-13 | A kind of aluminium silicon titanium alloy cylinder jacket and its processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609847.8A CN108690925A (en) | 2018-06-13 | 2018-06-13 | A kind of aluminium silicon titanium alloy cylinder jacket and its processing technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807551A (en) * | 2018-11-30 | 2019-05-28 | 宁波市永硕精密机械有限公司 | A method of reducing aluminium valve body inner bore roughness |
| CN109957686A (en) * | 2019-03-22 | 2019-07-02 | 福建工程学院 | A kind of cylinder applies alusil alloy and preparation process |
| CN111037216A (en) * | 2019-12-06 | 2020-04-21 | 深圳市伸展精密科技有限公司 | Processing technology of nitrogen spring cylinder barrel |
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