CN107838391A - The preparation method of chill and chill - Google Patents
The preparation method of chill and chill Download PDFInfo
- Publication number
- CN107838391A CN107838391A CN201711110807.0A CN201711110807A CN107838391A CN 107838391 A CN107838391 A CN 107838391A CN 201711110807 A CN201711110807 A CN 201711110807A CN 107838391 A CN107838391 A CN 107838391A
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- Prior art keywords
- chill
- housing
- opening
- sand
- core box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides the preparation method of chill and chill.Chill includes housing and cooling filler, and cooling filler is placed on the inside of housing, and the material of housing is precoated sand, so that housing is for defeated and dispersed after casting solidification.The preparation method of chill, comprises the following steps：S1. housing is prepared, housing includes hollow cavity, and for connecting hollow cavity and extraneous opening；S2. cooling filler is filled into hollow cavity by opening；S3. opening is blocked, so as to which cooling filler is encapsulated in hollow cavity, forms chill.It is poor to solve existing chill outer surface Product Precision, can not be taken out after being put into casting the problem of.By the way that cooling filler is filled in hollow housing, opening closure forms chill, not only accelerate the local cooling velocity of casting, and packaging chill need not be positioned when preparing, the material of housing is precoated sand, the housing of precoated sand can be defeated and dispersed after casting solidification, and cooling filler conveniently can take out out of casting.
Description
Technical field
The present invention relates to the technical field of casting technique, more particularly, to the preparation method of a kind of chill and chill.
Background technology
In order to increase casting Local cooling speed, it is placed on the metal chills block that die cavity interior energy is integrated with casting fusion and claims
The metal derby on apperance box surface is placed on for interior cold piece, during moulding core external chill.In Foundry Production, chill emits to raising
Mouthful effect and prevent casting produce shrinkage cavity and porosity, ensure that casting quality plays more important effect.Chill can play increasing
The reason for adding casting cooling velocity is that other Modeling Materials are different from casting periphery for the thermal conductivity factor of chill, in the mistake of casting solidification
Cheng Zhong, is contacted with casting or similar chill quickly can express casting heat.
Chill common at present is typically formed by punching press, shaping, forging, turning, casting or welding, and the shape of chill is each
It is different, but the shape of chill is often confined to the shape of casting, particularly complex-shaped at some and high quality requirement casting
Upper design chill；Chill is all the materials such as entity iron block or the graphite of concrete shape, has square, polygon, circle, for producing
Product outer shape, for the curved inner surface shape of some complex products, due to existing chill because needing to position when preparing, cause
Can all there be vestige the outer surface of chill, and the dimension precision requirement of the curved surface of cast-internal is high, causes existing chill not apply,
And the problem of can not taking out chill after casting is molded be present.
The content of the invention
It is an object of the invention to provide a kind of chill, needs to determine in process of production to solve chill of the prior art
Position, the low precision of outer surface, can not be put into casting, can not also be taken out after being put into casting the problem of.
Present invention also offers a kind of preparation method of chill, to solve the preparation of the preparation method of chill of the prior art
Chill surface accuracy it is poor, can not be put into casting, can not also be taken out after being put into casting the problem of.
A kind of chill provided by the invention, including housing and cooling filler, the cooling filler are placed on the shell
The inside of body, the material of the housing is precoated sand, so that the housing is for defeated and dispersed after casting solidification.
Further, the cooling filler is steel ball.
Further, a diameter of 0.5mm-2mm of the steel ball.
A kind of preparation method of chill provided by the invention, comprises the following steps：
S1. housing is prepared, the housing includes hollow cavity, and for connecting hollow cavity and extraneous opening；
S2. cooling filler is filled into hollow cavity by the opening；
S3. opening is blocked, so as to which the cooling filler is encapsulated in the hollow cavity, forms chill.
Further, the material of the housing is precoated sand, and S1 steps include：
S11. the temperature of the core box is improved, and keeps the constant temperature of core box, by overlay film in the presence of compressed air pressure
Sand injects core box inner chamber, improves the temperature of the core box, so that the precoated sand of fitting core box inwall forms core；
S12. the opening of the core box is overturn, making the opening direction of core box, vibrator vibrates the core box down, so that
The precoated sand that sand core internal is not fully cured flows out from the opening of core box, so as to obtain housing.
Further, in step S11, lifted the core box temperature maintain 170-220 DEG C between, molding time maintain
Between 5-15S；
In step S12, the vibrator vibration core box time dimension is held between 5-10S, so that the wall thickness of the core is
3.5-5mm。
Further, in step S11, the compressed air pressure is maintained between 0.4-0.7Mpa；
In step S12, the core box after being vibrated by the vibrator, which is overturn, to be resetted, the housing hardening time dimension in the core box
Hold between 80-100s.
Further, step S3 includes：
S31. flammable raw material is blent in precoated sand, stirs to form flammable sand；
S32. flammable sand is filled into by opening and be placed with the core of cooling filler, and the flammable sand floods institute
State cooling filler；
S33. the flammable sand is lighted, blocks opening after precoated sand solidification, prevents from cooling down filler outflow.
Further, the flammable raw material is industrial alcohol.
Further, the distance being open described in the cooling filler apogee distance is more than 4mm, so that the flammable sand
There are enough spaces to block the opening.
Chill provided by the invention includes housing and cooling filler, and cooling filler is located in the housing, will be cold
But filler, which is sealed in housing, forms chill, and modular chill surface accuracy is high, can not only accelerate the cold of casting part
But speed, and need not position in the preparation；The material of housing is precoated sand, so that the housing is used for after casting solidification
It is defeated and dispersed；The housing of precoated sand material is in casting under elevated temperature strength and high heat intensity, and meeting is defeated and dispersed after casting solidification, in housing
Cooling filler conveniently can be taken out out of casting, make cooling filler repeat recycle.
The preparation method of chill provided by the invention, prepare with hollow cavity and connect hollow cavity and extraneous opening
Housing, will cooling filler be filled into by opening in hollow cavity, opening is blocked, so as to by cooling filler be encapsulated in
Chill is formed in hollow cavity；Cooling filler is filled into housing and is assembled into chill, when preparing assembly type chill, is not required to
Position, ensure that the precision of the outer surface of assembly type chill, the housing of precoated sand material elevated temperature strength and high fever in casting
Measure under intensity, can be defeated and dispersed after casting solidification, the cooling filler in housing conveniently can take out out of casting, make cold
But filler repeats to recycle, and using effect is more preferable.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of chill provided in an embodiment of the present invention；
Fig. 2 is the structural representation of housing provided in an embodiment of the present invention.
Icon：11- housings；12- cools down filler；111- hollow cavities；112- is open.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, such as occur term " " center ", " on ", " under ", "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship,
Be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, such as there is term "
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " peace such as occurs
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is the structural representation of chill provided in an embodiment of the present invention；Fig. 2 is housing provided in an embodiment of the present invention
Structural representation.
Chill provided by the invention includes housing 11 and cooling filler 12, and the cooling filler 12 is placed on the shell
The inside of body 11, the material of the housing 11 is precoated sand, so that the housing 11 is for defeated and dispersed after casting solidification.
Chill provided by the invention includes housing 11 and cooling filler 12, and cooling filler 12 is located at the housing 11
It is interior, cooling filler 12 is sealed in housing 11 and forms chill, modular chill surface accuracy is high, can not only accelerate to cast
The local cooling velocity of part, and need not position in the preparation, the material of the housing 11 is precoated sand, so that the housing
11 for defeated and dispersed after casting solidification.Elevated temperature strength and high heat intensity effect of the housing 11 of precoated sand material in casting
Under, can be defeated and dispersed after casting solidification, the cooling filler 12 in housing 11 conveniently can take out out of casting, make cooling
Filler 12 can repeat to recycle.
Wherein, cooling filler 12, which can be filled out uniformly, is put into housing 11, and cooling filler 12 is uniformly filled to shell
The gap between adjacent cooling filler 12 can be reduced in body 11, advantageously ensure that the cooling effect of modular chill.
Further, the cooling filler 12 is steel ball.
Steel ball is filled with the housing 11 of precoated sand material；Steel ball is different from the thermal conductivity factor of housing 11, the heat of casting
It is delivered to by the housing 11 of precoated sand material on shot, shot, which quickly transmits heat, to be dispersed, and the chill being assembled into can be real
Now accelerate the cooling velocity of casting portion；After the housing 11 of precoated sand material is placed in casting, the housing 11 of precoated sand is being cast
By in the presence of high temperature and high fever in part, meeting is defeated and dispersed after casting solidification, i.e., the steel ball in housing 11 can take out of casting
Go out, and can reclaim and reuse；Cooling filler 12 is steel ball, and steel ball can be with bulk purchase, and the behaviour being placed and taken out
Make simpler quick.
Further, a diameter of 0.5mm-2mm of the steel ball.
During a diameter of 0.5-2mm of steel ball, the clearance distance between the interior steel ball of the chill of assembling is optimal, assembling it is cold
The cooling effect of iron meets in casting technique the most normal cooling effect of the chill of needs；When the diameter of steel ball is more than 2mm, assembling
The gap between steel ball in chill is big, causes the cooling effect of the chill of assembling weaker, is needing the cooling effect of chill
When weaker, the diameter of steel ball can be selected to be more than 2mm；When the diameter of steel ball is less than 0.5mm, the steel in the chill of assembling
Gap between ball is small, cause assembling chill cooling effect it is better, need chill cooling effect it is better when
Wait, the diameter of steel ball can be selected to be less than 0.5mm.
It can also be iron powder to cool down filler, and iron powder is different from the thermal conductivity factor of casting, and the chill being assembled into can be realized
Accelerate the cooling velocity of casting portion, and iron powder is filled into housing 11, and the gap between iron powder is small, and cooling effect is more preferable.
A kind of preparation method of chill provided by the invention, comprises the following steps：
S1. housing 11 is prepared, the housing 11 includes hollow cavity 111, and for connecting hollow cavity 111 and the external world
Opening 112；
S2. cooling filler 12 is filled into hollow cavity 111 by the opening 112；
S3. opening 112 is blocked, so as to which the cooling filler 12 is encapsulated in the hollow cavity 111, formed cold
Iron.
The housing 11 of preparation includes hollow cavity 111 and connects hollow cavity 111 and the housing 11 of extraneous opening 112,
Cooling filler 12 is filled into hollow cavity 111 by opening 112, opening 112 is blocked, so as to which filler 12 will be cooled down
It is encapsulated in hollow cavity 111 and forms assembly type chill；Cooling filler 12 is filled into housing 11 and is assembled into chill, is being made
During standby assembly type chill, it is not necessary to position, ensure that the precision of the outer surface of assembly type chill, and the housing of precoated sand material
, can be defeated and dispersed after casting solidification under 11 elevated temperature strength and high heat the intensity effect in casting, the cooling filling in housing 11
Thing 12 conveniently can take out out of casting, allow cooling filler 12 to repeat to recycle, using effect is more preferable.
Further, the material of the housing 11 is precoated sand, and S1 steps include：
S11. the temperature of the core box is improved, and keeps the constant temperature of core box, by overlay film in the presence of compressed air pressure
Sand injects core box inner chamber, so that the precoated sand of fitting core box inwall forms core；
S12. the opening 112 of the core box is overturn, is directed downward the opening 112 of core box, vibrator vibrates the core
Box, so that the precoated sand that sand core internal is not fully cured flows out from the opening 112 of core box, so as to obtain housing 11.
The temperature of the core box is improved, and keeps the constant temperature of core box；When preparing the housing 11 with hollow cavity 111,
Precoated sand is injected into core box inner chamber in the presence of compressed air pressure, enables the temperature of core box precoated sand is formed sand
Core；Core is higher close to the portion temperature of core box side wall, and then solidifies, and the opening 112 of core box is rotated into 180 °, makes opening for core box
Down, vibrator vibrates the core box to mouth 112, the precoated sand that sand core internal is not fully cured is flowed out from the opening 112 of core,
So as to obtain the housing 11 with hollow cavity 111.
Further, in step S11, lifted the core box temperature maintain 170-220 DEG C between, molding time maintain
Between 5-15S；
In step S12, the vibrator vibration core box time dimension is held between 5-10S, so that the wall thickness of the core is
3.5-5mm。
During substantial amounts of productive experiment, when the thickness for learning core is 3.5-5mm, precoated sand is injected into core box
During inner chamber, lifted core box temperature maintain 170-220 DEG C between, and the time for forming core maintain and both can guarantee that core
Intensity will not pour loam core by molten iron in casting process, also can guarantee that the using effect of assembly type chill, and with housing 11
The increase of thickness, the cooling effect of modular chill are poorer.
, it is necessary to when preparing hollow core when the wall thickness for preparing core is 3.5-5mm, the temperature for lifting core box maintains
Between 170-220 DEG C, formed core box time maintain 5-15S between, vibrator vibration core box time maintain 5-10S it
Between, the size for perfect condition of the hollow core of formation.Be worth mentioning when, it is to be uniformly that the wall thickness of core, which is not,
3.5-5mm, substantially maintain 3.5-5mm.
Further, in step S11, the compressed air pressure is maintained between 0.4-0.7Mpa；
In step S12, the core box after being vibrated by the vibrator, which is overturn, to be resetted, the hardening time of housing 11 in the core box
Between maintenance 80-100s.
Between the pressure of compressed air maintains 0.4-0.7Mpa, the core box upset after vibrator vibration resets, in core box
Housing 11 time for solidifying maintain 80-100s between, the housing 11 that advantageously forms be of the required size and housing 11
Intensity is preferable.It is noted that the temperature of above-mentioned core box, the hardening time of core in core box, the pressure of compressed air, vibration
The time of device vibration can realize mechanized operation by mechanization programming Control, and operating efficiency is high, and product quality is more preferable.
Further, step S3 includes：
S31. flammable raw material is blent in precoated sand, stirs to form flammable sand；
S32. flammable sand is filled into by opening 112 and be placed with the core of cooling filler 12, and the flammable sand
Flood the cooling filler 12；
S33. the flammable sand is lighted, blocks opening 112 after precoated sand solidification, prevents that cooling down filler 12 flows out.
During the opening 112 of housing 11 of the closure with cooling filler 12, flammable raw material will be blent in precoated sand, stirring is equal
It is even to form flammable sand, flammable sand is filled into by opening 112 and is placed with the core of cooling filler 12, and flammable sand floods
No filler, when flammable sand is lighted in guarantee, opening 112 can be blocked after precoated sand solidification, avoid cooling filler 12 from flowing out.
Further, the flammable raw material is industrial alcohol.
Wherein, flammable raw material is industrial alcohol, have it is preferably flammable, and industrial alcohol as flammable raw material will not
Air pollution, production cost is low, can be as the optimal selection of flammable raw material.Because industrial alcohol has volatility, therefore work
Industry alcohol needs to flood precoated sand, so that the flammable sand formed has preferable flammable performance.
Further, the distance of opening 112 is more than 4mm described in the cooling apogee distance of filler 12, so that described
Flammable sand has enough spaces by the closure of opening 112.
The distance for cooling down the apogee distance opening 112 of filler 12 is more than 4mm, so that enough flammable sand can fill
Into the housing 11 with cooling filling, flammable sand also there is enough spaces to block opening 112, and using effect is good.
The step of preparing the assembly type chill with existing chill same performance mainly includes：Size from steel ball is 0.5-
2mm, steel ball is placed on standby near core box；In the presence of 0.4-0.7Mpa compressed airs, sand film will be covered and be injected into core box
Inner chamber, between the temperature of core box maintains 170-220 DEG C, core box heating cover the shaping of sand film time maintain 5-15S between,
Core box is overturn 180 ° again, is directed downward the opening 112 of core box, between vibrator vibration core 5-10S, makes sand core internal not
The precoated sand being fully cured flows out from the opening 112 of core, so as to obtain between the wall thickness of hollow core maintains 3.5-5mm,
Again by between the core side wall hardening time formed in the core box maintenance 80-100s；The steel ball of preparation is uniformly filled out in being put into
In empty core, the position 4mm of opening 112 of the apogee distance core of steel ball；Industrial alcohol is blent in sand film covering, alcohol will
Precoated sand is flooded, stirs to form flammable sand, flammable sand is filled into the core for being placed with steel ball, lights flammable sand, can
The alcohol burn in sand is fired, precoated sand solidification solidifies opening 112, prevents steel ball from flowing out, that is, completes the making of assembly type chill.
In summary, the housing 11 that includes of chill provided by the invention is located at filler 12, cooling filler 12 is cooled down
In the housing 11, cooling filler 12 is sealed in housing 11 and forms chill, modular chill surface accuracy is high, not only
The local cooling velocity of casting can be accelerated, and need not be positioned in the preparation, the material of the housing 11 is precoated sand, with
It is used for the housing 11 defeated and dispersed after casting solidification.The housing 11 of precoated sand material elevated temperature strength and high heat in casting is strong
, can be defeated and dispersed after casting solidification under degree, the cooling filler 12 in housing 11 conveniently can take out out of casting, make cold
But filler 12 can repeat to recycle.The preparation method of chill provided by the invention, prepare with hollow cavity 111 and connect
Logical hollow cavity 111 and the housing 11 of extraneous opening 112, cooling filler 12 is filled into hollow cavity by opening 112
In 111, opening 112 is blocked, chill is formed so as to which cooling filler 12 is encapsulated in hollow cavity 111；Cooling is filled
Thing 12 is filled into housing 11 and is assembled into chill, when preparing assembly type chill, it is not necessary to position, ensure that assembly type chill
The precision of outer surface, and under elevated temperature strength and the effect of high heat intensity of the housing 11 of precoated sand material in casting, meeting exists
Defeated and dispersed after casting solidification, the cooling filler 12 in housing 11 conveniently can take out out of casting, make cooling filler
12 can repeat to recycle, and using effect is more preferable.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of chill, it is characterised in that including housing (11) and cooling filler (12), the cooling filler (12) is placed
In the inside of the housing (11), the material of the housing (11) is precoated sand, so that the housing (11) is used to coagulate in casting
It is defeated and dispersed after Gu.
2. chill according to claim 1, it is characterised in that the cooling filler (12) is steel ball.
3. chill according to claim 2, it is characterised in that a diameter of 0.5mm-2mm of the steel ball.
4. a kind of preparation method of chill, it is characterised in that comprise the following steps：
S1. prepare housing (11), the housing (11) includes hollow cavity (111), and for connect hollow cavity (111) with
Extraneous opening (112)；
S2. cooling filler (12) is filled into hollow cavity (111) by the opening (112)；
S3. opening (112) is blocked, so as to which the cooling filler (12) is encapsulated in the hollow cavity (111), formed
Chill.
5. the preparation method of chill according to claim 4, it is characterised in that the material of the housing (11) is overlay film
Sand, S1 steps include：
S11. the temperature of the core box is improved, and keeps the constant temperature of core box, penetrates precoated sand in the presence of compressed air pressure
Enter core box inner chamber, so that the precoated sand of fitting core box inwall forms core；
S12. the opening (112) of the core box is overturn, is directed downward the opening (112) of core box, vibrator vibrates the core
Box, so that the precoated sand that sand core internal is not fully cured flows out from the opening (112) of core box, so as to obtain housing (11).
6. the preparation method of chill according to claim 5, it is characterised in that in step S11, lift the temperature of the core box
Between degree maintains 170-220 DEG C, molding time is maintained between 5-15S；
In step S12, the vibrator vibration core box time dimension is held between 5-10S, so that the wall thickness of the core is 3.5-
5mm。
7. the preparation method of chill according to claim 5, it is characterised in that in step S11, the compressed air pressure
Maintain between 0.4-0.7Mpa；
In step S12, the core box after being vibrated by the vibrator, which is overturn, to be resetted, housing (11) the hardening time dimension in the core box
Hold between 80-100s.
8. the preparation method of chill according to claim 5, it is characterised in that step S3 includes：
S31. flammable raw material is blent in precoated sand, stirs to form flammable sand；
S32. flammable sand is filled into by opening (112) and be placed with the core of cooling filler (12), and the flammable sand
Flood the cooling filler (12)；
S33. the flammable sand is lighted, blocks opening (112) after precoated sand solidification, prevents from cooling down filler (12) outflow.
9. the preparation method of chill according to claim 8, it is characterised in that the flammable raw material is industrial alcohol.
10. the preparation method of chill according to claim 8, it is characterised in that described cooling filler (12) peak
Distance apart from the opening (112) is more than 4mm, so that the flammable sand has enough spaces by opening (112) closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711110807.0A CN107838391A (en) | 2017-11-10 | 2017-11-10 | The preparation method of chill and chill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711110807.0A CN107838391A (en) | 2017-11-10 | 2017-11-10 | The preparation method of chill and chill |
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| CN107838391A true CN107838391A (en) | 2018-03-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262449A (en) * | 2018-03-06 | 2018-07-10 | 溧阳市联华机械制造有限公司 | A kind of method that hot box makes forming graphite chill |
| CN111520250A (en) * | 2020-03-31 | 2020-08-11 | 潍柴动力股份有限公司 | Chilling block, cylinder cover with chilling block and engine with chilling block |
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| CN108262449A (en) * | 2018-03-06 | 2018-07-10 | 溧阳市联华机械制造有限公司 | A kind of method that hot box makes forming graphite chill |
| CN111520250A (en) * | 2020-03-31 | 2020-08-11 | 潍柴动力股份有限公司 | Chilling block, cylinder cover with chilling block and engine with chilling block |
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