CN108441756A - A kind of wearability low-carbon cylinder jacket - Google Patents
A kind of wearability low-carbon cylinder jacket Download PDFInfo
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- CN108441756A CN108441756A CN201810609877.9A CN201810609877A CN108441756A CN 108441756 A CN108441756 A CN 108441756A CN 201810609877 A CN201810609877 A CN 201810609877A CN 108441756 A CN108441756 A CN 108441756A
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- cylinder jacket
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- carbon
- wearability
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The present invention discloses a kind of wearability low-carbon cylinder jacket, the raw material weight composition of the cylinder jacket includes 2.50~3.0% carbon, 1.6~2.6% silicon, 0.5~1.2% manganese, 0~0.15% sulphur, 0.1%~0.4% phosphorus, 0.3~1.2% nickel, 0.3~1.5% molybdenum, 0.1 0.9% cerium, 0.3~1.2% bronze medal, 0.01~0.08% boron, 0.20~0.5% inovulant, and surplus is iron.Wearability low-carbon cylinder jacket provided by the invention, by the content for reducing carbon, silicon in cylinder jacket, increase the content of copper, molybdenum and nickel, it is effectively improved the wearability of cylinder jacket and the intensity of cylinder jacket, and gather the processing technology of cylinder jacket, the processing intensity of cylinder jacket and the product quality of cylinder jacket are substantially increased, the wearability and lubricity of cylinder jacket are improved, and then the service life of cylinder jacket is improved, reduce manufacturing cost.
Description
Technical field
The invention belongs to cylinder jacket processing technique fields, are related to a kind of wearability low-carbon cylinder jacket.
Background technology
The service life of cylinder jacket is the important indicator in measured engine service life, and inner surface is directly made by high-temperature high-pressure fuel gas
With, and high-speed slide friction occurs with piston ring and piston skirt always, working environment is very severe；And bear high temperature and pressure and
The friction that piston ring moves back and forth, cylinder jacket are also easy to produce abrasive wear, melt abrasion and corrosive wear.To meet work requirements,
Cylinder jacket should have enough intensity, rigidity and heat resistance, while should also have preferable wear-resisting property.
Present engine is to improve emission performance generally to use EGR exhaust recycling technology, but applying
The oxynitrides that engine generates in journey is combined that acidic materials can be generated with water, these acidic materials enter meeting inside cylinder jacket
Corrode cylinder liner internal wall, serious corrosive wear can be caused, the performance generation in service life and engine to cylinder jacket seriously affects.
In order to improve the wearability, intensity and service life of cylinder jacket, a kind of wearability low-carbon cylinder jacket is now designed.
Invention content
The purpose of the present invention is to provide a kind of wearability low-carbon cylinder jacket, solve wearability existing for existing cylinder jacket
Difference, intensity difference and the short problem of service life, considerably increase manufacturing cost.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of wearability low-carbon cylinder jacket, the cylinder jacket raw material weight composition include 2.50~3.0% carbon, 1.6~
2.6% silicon, 0.5~1.2% manganese, 0~0.15% sulphur, 0.1%~0.4% phosphorus, 0.3~1.2% nickel, 0.3~1.5% molybdenum,
0.1-0.9% ceriums, 0.3~1.2% bronze medal, 0.01~0.08% boron, 0.20~0.5% inovulant, surplus are iron；
The processing step of the wearability low-carbon cylinder jacket, includes the following steps：
S1, it is added in carbon, silicon, manganese, sulphur, phosphorus, nickel, molybdenum, cerium, copper, boron and iron to blender by the weight percent of setting；
S2, mixing time 24-48h take out a certain amount of dispensing being stirred, add the waterglass being diluted with water, stir
It mixes uniformly, obtains raw material；
S3, the raw material configured is placed in heating furnace and is heated up, obtain the raw material under molten condition；
S4, weight percent is added as 0.20~0.5% silicon strontium zirconium inovulant in the raw material under molten condition；
S5, production cylinder jacket casting in the injection centrifugal casting apparatus of the raw material under the molten condition of silicon strontium zirconium inovulant will be added
Part；
Dispenser perlite is kept the temperature on centrifugal casting apparatus immediately after S6, raw material injection, is shut down and is waited for, demoulding；
Refractory brick, water-glass sand carry out the system of repairing on the outside of S5, cylinder jacket, lead to CO hardening, drying；
S6, cylinder jacket inner cavity refractory brick, water-glass sand carry out the system of repairing, and lead to CO hardening, drying；
After S8, cast molding casting depanning, forced cooling carries out ageing treatment to 500 DEG C, to casting, and cylinder sleeve slightly adds
It needs to carry out second of ageing treatment after work, before finishing；
S9, it is air-cooled after the completion of, casting is placed in holding furnace and is kept the temperature, soaking time 80-130min, holding furnace
Temperature is less than 280 DEG C, is put into after coming out of the stove in casting frame.
Further, the inovulant selects silicon strontium zirconium inovulant.
Further, the dispensing and the weight ratio of waterglass are 1.5-2:1, and mixing speed is 200-500r/min.
Further, temperature when raw material is put into heating furnace in the step S3 is 360 DEG C, in-furnace temperature ramp-up rate
For 18-65 DEG C/h so that in-furnace temperature is increased to 1500-1650 DEG C, sustaining temperature 1-4h.
Further, 60~85ml/s of speed when being injected in the step S5,1350~1490 DEG C of temperature when injection.
Further, the condition of the ageing treatment is：In 150 DEG C or less shove charges, raised speed≤100 DEG C of temperature/
H, when heating temperature reaches 580 ± 20 DEG C, continuous heating 0.5-1.5h finally comes out of the stove at 250-400 DEG C or less air-cooled.
Beneficial effects of the present invention：
Wearability low-carbon cylinder jacket provided by the invention, by reduce cylinder jacket in carbon, silicon content, increase copper, molybdenum and
The content of nickel is effectively improved the wearability of cylinder jacket and the intensity of cylinder jacket, and gathers the processing technology of cylinder jacket, significantly
The processing intensity for improving cylinder jacket, ensures the product quality of cylinder jacket, improves the wearability and lubricity of cylinder jacket, in turn
The service life of cylinder jacket is improved, manufacturing cost is reduced.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the scope of protection of the invention.
The present invention is a kind of wearability low-carbon cylinder jacket, and the raw material weight composition of the cylinder jacket includes 2.50~3.0%
Carbon, 1.6~2.6% silicon, 0.5~1.2% manganese, 0~0.15% sulphur, 0.1%~0.4% phosphorus, 0.3~1.2% nickel, 0.3~
1.5% molybdenum, 0.1-0.9% ceriums, 0.3~1.2% bronze medal, 0.01~0.08% boron, 0.20~0.5% inovulant, surplus are iron；
The inovulant selects silicon strontium zirconium inovulant.
Embodiment 1：
The processing step of the wearability low-carbon cylinder jacket, includes the following steps：
S1,2.50% carbon, 1.6% silicon, 0.5% manganese, 0.05% sulphur, 0.1% phosphorus, 0.3% are chosen according to weight percent
Nickel, 0.3% molybdenum, 0.19% cerium, 0.3% bronze medal, 0.01% boron, 94.45% iron are added in blender together；
S2, mixing time for 24 hours, take out a certain amount of dispensing being stirred, add the waterglass being diluted with water, described to match
The weight ratio of material and waterglass is 1.5:1, it stirs evenly, obtains raw material, mixing speed 200r/min；
S3, the raw material configured is placed in heating furnace and is heated up, temperature when being put into is 360 DEG C, warm in stove
Degree ramp-up rate is 18 DEG C/h so that in-furnace temperature is increased to 1500 DEG C, and sustaining temperature 1h, obtains the original under molten condition
Material；
S4, weight percent is added as 0.20% silicon strontium zirconium inovulant in the raw material under molten condition；
S5, gas will be produced in the raw material injection centrifugal casting apparatus being added under the molten condition of 0.20% silicon strontium zirconium inovulant
Cylinder Sleeve Castings, speed 60ml/s when injection, 1350 DEG C of temperature when injection；
Dispenser perlite is kept the temperature on centrifugal casting apparatus immediately after S6, raw material injection, is shut down and is waited for, shuts down
After 4min, air-cooled 8h, demoulding；
Refractory brick, water-glass sand carry out the system of repairing on the outside of S5, cylinder jacket, lead to CO hardening, drying；
S6, cylinder jacket inner cavity refractory brick, water-glass sand carry out the system of repairing, and lead to CO hardening, drying；
After S8, cast molding casting depanning, forced cooling carries out ageing treatment to 500 DEG C, to casting, in elimination
Stress needs to carry out second of ageing treatment after cylinder sleeve roughing, before finishing, and the condition of ageing treatment is：It is filled at 150 DEG C or less
Stove, raised speed≤100 DEG C of temperature/h, when heating temperature reaches 580 ± 20 DEG C, continuous heating 0.5h, finally at 250 DEG C
It comes out of the stove below air-cooled；
S9, it is air-cooled after the completion of, casting is placed in holding furnace and is kept the temperature, soaking time 80-130min, holding furnace
Temperature is less than 280 DEG C, is put into after coming out of the stove in casting frame.
Embodiment 2：
The processing step of the wearability low-carbon cylinder jacket, includes the following steps：
S1, according to weight percent choose 2.7% carbon, 2% silicon, 1% manganese, 0.4% sulphur, 0.3% phosphorus, 0.8% nickel,
0.7% molybdenum, 0.6% cerium, 0.6% bronze medal, 0.04% boron, 90.56% iron are added in blender together；
S2, mixing time 36h take out a certain amount of dispensing being stirred, add the waterglass being diluted with water, described to match
The weight ratio of material and waterglass is 1.75:1, it stirs evenly, obtains raw material, mixing speed 350r/min；
S3, the raw material configured is placed in heating furnace and is heated up, temperature when being put into is 360 DEG C, warm in stove
Degree ramp-up rate is 45 DEG C/h so that in-furnace temperature is increased to 1600 DEG C, and sustaining temperature 2h, obtains the original under molten condition
Material；
S4, weight percent is added as 0.3% silicon strontium zirconium inovulant in the raw material under molten condition；
S5, gas will be produced in the raw material injection centrifugal casting apparatus being added under the molten condition of 0.3% silicon strontium zirconium inovulant
Cylinder Sleeve Castings, speed 70ml/s when injection, 1420 DEG C of temperature when injection；
Dispenser perlite is kept the temperature on centrifugal casting apparatus immediately after S6, raw material injection, is shut down and is waited for, shuts down
After 5min, air-cooled 10h, demoulding；
Refractory brick, water-glass sand carry out the system of repairing on the outside of S5, cylinder jacket, lead to CO hardening, drying；
S6, cylinder jacket inner cavity refractory brick, water-glass sand carry out the system of repairing, and lead to CO hardening, drying；
After S8, cast molding casting depanning, forced cooling carries out ageing treatment to 500 DEG C, to casting, in elimination
Stress needs to carry out second of ageing treatment after cylinder sleeve roughing, before finishing, and the condition of ageing treatment is：It is filled at 150 DEG C or less
Stove, raised speed≤100 DEG C of temperature/h, when heating temperature reaches 580 ± 20 DEG C, continuous heating 1h, finally 320 DEG C with
Under come out of the stove it is air-cooled；
S9, it is air-cooled after the completion of, casting is placed in holding furnace and is kept the temperature, soaking time 100min, the temperature of holding furnace
Degree is less than 280 DEG C, is put into after coming out of the stove in casting frame.
Embodiment 3：
The processing step of the wearability low-carbon cylinder jacket, includes the following steps：
S1,3.0% carbon, 2.6% silicon, 1.2% manganese, 0.15% sulphur, 0.4% phosphorus, 1.2% are chosen according to weight percent
Nickel, 1.5% molybdenum, 0.9% cerium, 1.2% bronze medal, 0.08% boron, 87.27% iron are added in blender together；
S2, mixing time 48h take out a certain amount of dispensing being stirred, add the waterglass being diluted with water, described to match
The weight ratio of material and waterglass is 2:1, it stirs evenly, obtains raw material, mixing speed 500r/min；
S3, the raw material configured is placed in heating furnace and is heated up, temperature when being put into is 360 DEG C, warm in stove
Degree ramp-up rate is 65 DEG C/h so that in-furnace temperature is increased to 1650 DEG C, and sustaining temperature 4h, obtains the original under molten condition
Material；
S4, weight percent is added as 0.5% silicon strontium zirconium inovulant in the raw material under molten condition；
S5, gas will be produced in the raw material injection centrifugal casting apparatus being added under the molten condition of 0.5% silicon strontium zirconium inovulant
Cylinder Sleeve Castings, speed 85ml/s when injection, 1490 DEG C of temperature when injection；
Dispenser perlite is kept the temperature on centrifugal casting apparatus immediately after S6, raw material injection, is shut down and is waited for, shuts down
After 6min, air-cooled 12h, demoulding；
Refractory brick, water-glass sand carry out the system of repairing on the outside of S5, cylinder jacket, lead to CO hardening, drying；
S6, cylinder jacket inner cavity refractory brick, water-glass sand carry out the system of repairing, and lead to CO hardening, drying；
After S8, cast molding casting depanning, forced cooling carries out ageing treatment to 500 DEG C, to casting, in elimination
Stress needs to carry out second of ageing treatment after cylinder sleeve roughing, before finishing, and the condition of ageing treatment is：It is filled at 150 DEG C or less
Stove, raised speed≤100 DEG C of temperature/h, when heating temperature reaches 580 ± 20 DEG C, continuous heating 1.5h, finally at 400 DEG C
It comes out of the stove below air-cooled；
S9, it is air-cooled after the completion of, casting is placed in holding furnace and is kept the temperature, soaking time 130min, the temperature of holding furnace
Degree is less than 280 DEG C, is put into after coming out of the stove in casting frame.
Wearability low-carbon cylinder jacket provided by the invention, by reduce cylinder jacket in carbon, silicon content, increase copper, molybdenum and
The content of nickel is effectively improved the wearability of cylinder jacket and the intensity of cylinder jacket, and gathers the processing technology of cylinder jacket, significantly
The processing intensity for improving cylinder jacket, ensures the product quality of cylinder jacket, improves the wearability and lubricity of cylinder jacket, in turn
The service life of cylinder jacket is improved, manufacturing cost is reduced.
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 wearability low-carbon cylinder jacket, it is characterised in that：The raw material weight composition of the cylinder jacket includes 2.50~3.0%
Carbon, 1.6~2.6% silicon, 0.5~1.2% manganese, 0~0.15% sulphur, 0.1%~0.4% phosphorus, 0.3~1.2% nickel, 0.3~
1.5% molybdenum, 0.1-0.9% ceriums, 0.3~1.2% bronze medal, 0.01~0.08% boron, 0.20~0.5% inovulant, surplus are iron；
The processing step of the wearability low-carbon cylinder jacket, includes the following steps：
S1, it is added in carbon, silicon, manganese, sulphur, phosphorus, nickel, molybdenum, cerium, copper, boron and iron to blender by the weight percent of setting；
S2, mixing time 24-48h take out a certain amount of dispensing being stirred, and add the waterglass being diluted with water, and stirring is equal
It is even, obtain raw material；
S3, the raw material configured is placed in heating furnace and is heated up, obtain the raw material under molten condition；
S4, weight percent is added as 0.20~0.5% silicon strontium zirconium inovulant in the raw material under molten condition；
S5, cylinder sleeve cast part will be produced in the raw material injection centrifugal casting apparatus being added under the molten condition of silicon strontium zirconium inovulant；
Dispenser perlite is kept the temperature on centrifugal casting apparatus immediately after S6, raw material injection, is shut down and is waited for, demoulding；
Refractory brick, water-glass sand carry out the system of repairing on the outside of S5, cylinder jacket, lead to CO hardening, drying；
S6, cylinder jacket inner cavity refractory brick, water-glass sand carry out the system of repairing, and lead to CO hardening, drying；
After S8, cast molding casting depanning, forced cooling carries out ageing treatment, cylinder sleeve roughing to 500 DEG C, to casting
Afterwards, it needs to carry out second of ageing treatment before finishing；
S9, it is air-cooled after the completion of, casting is placed in holding furnace and is kept the temperature, soaking time 80-130min, the temperature of holding furnace
Less than 280 DEG C, it is put into after coming out of the stove in casting frame.
2. a kind of wearability low-carbon cylinder jacket according to claim 1, it is characterised in that：The inovulant selects silicon
Strontium zirconium inovulant.
3. a kind of wearability low-carbon cylinder jacket according to claim 1, it is characterised in that：The weight of the dispensing and waterglass
Amount is than being 1.5-2:1, and mixing speed is 200-500r/min.
4. a kind of wearability low-carbon cylinder jacket according to claim 1, it is characterised in that：Raw material is put into the step S3
Temperature when to heating furnace is 360 DEG C, and in-furnace temperature ramp-up rate is 18-65 DEG C/h so that in-furnace temperature is increased to 1500-
1650 DEG C, sustaining temperature 1-4h.
5. a kind of wearability low-carbon cylinder jacket according to claim 1, it is characterised in that：When being injected in the step S5
60~85ml/s of speed, 1350~1490 DEG C of temperature when injection.
6. a kind of wearability low-carbon cylinder jacket according to claim 1, it is characterised in that：The condition of the ageing treatment
For：In 150 DEG C or less shove charges, raised speed≤100 DEG C of temperature/h, when heating temperature reaches 580 ± 20 DEG C, continuous heating
0.5-1.5h finally comes out of the stove at 250-400 DEG C or less air-cooled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609877.9A CN108441756A (en) | 2018-06-13 | 2018-06-13 | A kind of wearability low-carbon cylinder jacket |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810609877.9A CN108441756A (en) | 2018-06-13 | 2018-06-13 | A kind of wearability low-carbon cylinder jacket |
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| CN108441756A true CN108441756A (en) | 2018-08-24 |
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ID=63206372
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112458335A (en) * | 2020-11-05 | 2021-03-09 | 泉州市东起汽车零部件有限公司 | High-wear-resistance explosion-proof cylinder sleeve and processing technology thereof |
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|---|---|---|---|---|
| JPS60247036A (en) * | 1984-05-22 | 1985-12-06 | Mitsui Eng & Shipbuild Co Ltd | Cv-cast iron cylinder liner |
| CN101676424A (en) * | 2008-09-15 | 2010-03-24 | 韦星野 | Compacted graphite cast iron air cylinder sleeve and composition proportioning thereof |
| CN102198496A (en) * | 2011-05-27 | 2011-09-28 | 大连滨城活塞制造有限公司 | Process for processing cylinder sleeve of diesel engine |
| CN103131945A (en) * | 2013-03-26 | 2013-06-05 | 河南中原吉凯恩气缸套有限公司 | Boron-containing low-carbon bainite cylinder jacket and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112458335A (en) * | 2020-11-05 | 2021-03-09 | 泉州市东起汽车零部件有限公司 | High-wear-resistance explosion-proof cylinder sleeve and processing technology thereof |
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Application publication date: 20180824 |