CN114850446A - Process for improving position degree and fitting degree of cylinder sleeve of V-shaped aluminum alloy casting sleeve cylinder body - Google Patents
Process for improving position degree and fitting degree of cylinder sleeve of V-shaped aluminum alloy casting sleeve cylinder body Download PDFInfo
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- CN114850446A CN114850446A CN202210372377.4A CN202210372377A CN114850446A CN 114850446 A CN114850446 A CN 114850446A CN 202210372377 A CN202210372377 A CN 202210372377A CN 114850446 A CN114850446 A CN 114850446A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000005266 casting Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 38
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 29
- 238000005516 engineering process Methods 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 description 14
- 230000006698 induction Effects 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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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
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a process for improving the position degree and the fitting degree of a cylinder sleeve of a V-shaped aluminum alloy casting sleeve cylinder body; the cylinder sleeve is arranged in the core making die, the cylinder sleeve and the crankcase are integrally molded into a sand core, the sand core is arranged on the inner wall of the cylinder sleeve, a reserved hole is formed in the middle of the sand core, the cylinder pushes the electromagnetic induction coil to enter the reserved hole for heating, and the temperature of the heated cylinder sleeve reaches a reasonable process range; a pipe barrel is arranged in the cylinder sleeve, a pipe barrel sand core is arranged in the pipe barrel, the cylinder sleeve, the pipe barrel and the crankcase are integrally molded into a sand core, a hole is drilled in the middle of the pipe barrel sand core, the cylinder pushes the electromagnetic induction coil to enter the hole of the pipe barrel sand core for heating, and the temperature of the heating cylinder sleeve reaches a reasonable process range; the invention improves the positioning precision of the cylinder sleeve, the sand cores are combined into the sand bags, the cylinder sleeve is heated by adopting the electromagnetic induction heating technology in the cylinder sleeve, and the cylinder sleeve is poured in a short time after reaching a certain temperature so as to achieve the optimal cylinder sleeve attachment.
Description
Technical Field
The invention belongs to the technical field of casting of V-shaped cast sleeve cylinder bodies, and relates to a process for improving the position degree and the fitting degree of a cylinder sleeve of a V-shaped aluminum alloy cast sleeve cylinder body.
Background
The patent documents disclosed so far do not basically provide a heating method for a V-shaped aluminum alloy cast sleeve cylinder body and a technique for positional conformity to a cylinder liner. However, with the development and manufacture of high-performance and high-power complex V-shaped engine cylinder bodies with inner cavities, the position degree and the fitting degree of the cylinder sleeve directly influence the performance of the engine.
The technology adopted internationally for the low-pressure sand mould V-shaped aluminum alloy casting sleeve cylinder body at present is as follows: the cylinder sleeve is heated in a resistance wire heating furnace, is taken out after reaching a certain temperature and is combined with a sand core, compressed air is used for blowing and cooling, the cylinder sleeve is fixed on the sand core through a principle of expansion with heat and contraction with cold, then is assembled, pouring is carried out after the combination of other sand cores is finished, and the time of the cylinder sleeve taken out to a pouring process is about 3 minutes. There are the following problems: the cylinder sleeve and the sand core are combined by adopting compressed air to blow and cool, the temperature of the cylinder sleeve is difficult to control, the temperature of the cylinder sleeve at each part is inconsistent, the fitting degree of the cylinder sleeve is directly influenced, and meanwhile, the core assembly deviation exists when the sand core and the sand bag are combined by the cylinder sleeve, so that the problem of large deviation of the position degree of the cylinder sleeve is caused.
The patent document with publication number CN101890490A discloses a low-pressure casting process of a metal pattern die pre-cast cylinder sleeve of a V-shaped aluminum alloy cylinder body, which comprises the steps of firstly, manufacturing a closed water cavity and a multi-layer oil cavity of the V-shaped aluminum alloy cylinder body into a plurality of sand cores through a sand core decomposition manufacturing procedure, and then placing the sand cores into a metal pattern die; then, preheating the cylinder sleeve and feeding the cylinder sleeve into a metal mold in a tensioning mode, wherein the cylinder sleeve is placed in a V shape; and then, after the processes of liquid lifting, mold filling, pressure maintaining and pressure relief, finally demoulding and cooling the casting to obtain the V-shaped aluminum alloy cylinder casting. The invention utilizes the characteristic of stable filling of low-pressure casting, is beneficial to forming and coating the cylinder sleeve on a thin-wall casting, adopts the metal mold to produce a V-shaped aluminum cylinder casting with thin wall, complexity, high mechanical property, compact surface and bright color, is suitable for automatic mass production, and has the advantages of low cost, high efficiency and high qualification rate.
The patent document with the publication number of CN201900224U relates to a cast aluminum cylinder body sand core structure suitable for an induction heating cylinder sleeve, wherein a casting mold consists of a crankcase core, a front end face core, a rear end face core, a cylinder sleeve supporting core and a top cover core; the method is characterized in that: the front end face core is placed on the left side of the crankcase core serving as a positioning basis, the rear end face core is placed on the right side of the crankcase core, the cylinder sleeve supporting core with the cylinder sleeve is placed on the crankcase core, then the top cover core is placed, and the position of the cylinder sleeve supporting core and the position of the cylinder sleeve with the cylinder sleeve are fixed by the crankcase core and the top cover core. The cylinder sleeve placing precision is guaranteed, the operation is simple and convenient, and the cylinder sleeve placing device is suitable for production of aluminum cylinder bodies of induction heating cylinder sleeves.
The patent document with the publication number of CN201950165U relates to a sand core structure of a cast aluminum cylinder body suitable for fixing an induction heating cylinder sleeve, wherein a casting mold consists of a crankcase core, a front end face core, a rear end face core and a fixed cylinder sleeve core; the method is characterized in that: the fixed cylinder sleeve core is provided with a radial boss which is contacted with the inner wall of the cylinder sleeve, and the cylinder sleeve does not move radially; the fixed cylinder sleeve core is also provided with an axial fixed cylinder sleeve boss, and the cylinder sleeve does not move axially; the inductor moves in the fixed cylinder sleeve core hole to heat the cylinder sleeve, and before heating and pouring are finished, the cylinder sleeve does not move on the fixed cylinder sleeve core in the radial direction and the axial direction. The method ensures the positioning precision of the cylinder sleeve, is simple and convenient to operate, and is suitable for producing the cast aluminum cylinder body with the cast cylinder sleeve.
The cylinder positioning tool in the cylinder embedded with the cylinder sleeve is also provided with an auxiliary tool, the auxiliary tool consists of positioning column mounting seats, positioning columns corresponding to the number of the cylinder sleeves and induction coils corresponding to the number of the positioning columns, each positioning column is connected with the positioning mounting seats through a screw rod, except for an opening at the lower part of each positioning column, the rest of each positioning column is a sealed whole, a boss is arranged at the upper part of each positioning column and used for being matched and positioned with a crankcase core group, each positioning column is hollow and used for mounting the induction coils, and the induction coils are connected with high-frequency induction heating equipment; a quick manufacturing method of a cylinder sleeve aluminum alloy cylinder body casting comprises the steps of obtaining 3D data of a cylinder sleeve aluminum alloy cylinder body to be cast, analyzing the 3D data, determining a process scheme, performing 3D data split-die processing, decomposing and manufacturing a core, closing a box and pouring, cleaning the casting, inspecting and the like; after the 3D data is subjected to die splitting treatment, the design of the cylinder sleeve aluminum alloy cylinder body core is divided into sand molds and core groups; in the decomposition manufacturing of the core, the left sand mold, the right sand mold, the front sand mold, the rear sand mold, the bottom sand mold, the riser, the pouring cup and the sprue sand mold are manufactured by adopting a PDM model direct milling processing technology, and the water jacket core and the crankcase core group are manufactured by adopting a PCM mould-free casting mold manufacturing technology.
Notice for CN208718794U patent document, discloses a cylinder liner heating device, has the frame base, be equipped with cylinder liner axial displacement subassembly, cylinder liner lateral shifting subassembly, smelting tool platform and heating element on the frame base in proper order, cylinder liner axial displacement subassembly passes through guide rail bracket to be fixed on the table surface of frame base, cylinder liner lateral shifting subassembly passes through the cylinder liner and removes the slip table to be fixed on the frame base, heating element includes heating copper pipe coil and heating electric control source, the heating electric control source with heating copper pipe coil connection of electric lines to for it provides heat source power, the technical scheme structural design of the utility model is exquisite, adopts the promotion mode of X axle and Y axle, fixes the smelting tool at the middle part of heating element, and it is even to let the smelting tool fully heat. The automation degree is high, and the labor productivity is improved.
The above patents are of less relevance to the present invention.
The technical background of the invention is that the technical requirements of a novel large-size inner cavity complex V-shaped aluminum alloy cylinder body are that the position degree phi of a cylinder sleeve is less than or equal to 1.0mm, and the position degree of the cylinder sleeve is more than 98 percent, so that the technical requirements of the product are met, the influence factors of the position degree and the fitting degree of the cylinder sleeve are researched, the positioning between the cylinder sleeve and a sand core is ensured, the temperature consistency of the cylinder sleeve is ensured, and finally the integrated forming technology of the cylinder sleeve and the sand core and the electromagnetic induction heating technology of the cylinder sleeve are determined.
Disclosure of Invention
The invention aims to solve the technical problems of deviation of the position degree of a cylinder sleeve and poor fit of the cylinder sleeve in the prior art, and provides a process for improving the position degree and fit degree of the cylinder sleeve of a V-shaped aluminum alloy casting sleeve cylinder body.
The invention relates to the field of development and production of automobile aluminum alloy V-shaped casting sleeve cylinder bodies, which is mainly applied to production of low-pressure sand type aluminum alloy V-shaped casting sleeve cylinder bodies. The position degree and the fitting degree of the cylinder sleeve of the V-shaped casting sleeve cylinder body directly influence the performance of the engine, and have great influence on the heat dissipation, the warming-up and the explosion pressure in the cylinder of the engine.
The invention aims to integrally form and manufacture a sand core and a cylinder sleeve, improve the positioning accuracy of the cylinder sleeve, combine the sand core into a sand bag, heat the cylinder sleeve by adopting an electromagnetic induction heating technology in the cylinder sleeve, and pour in a short time after reaching a certain temperature so as to achieve optimal cylinder sleeve bonding, thereby having certain guiding significance for the development and production of a low-pressure sand mould V-shaped aluminum alloy casting sleeve cylinder body.
The invention can improve the position degree of the cylinder sleeve to phi less than or equal to 0.5mm, lead the cylinder sleeve fitting degree to 100 percent and lead the international level (the position degree of the cylinder body of the V-shaped aluminum alloy casting sleeve is phi less than or equal to 1mm and the fitting degree of the cylinder sleeve is 98 percent internationally at present).
In order to solve the technical problems, the invention is realized by adopting the following technical scheme, which is described by combining the accompanying drawings as follows:
it should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
A technology for improving the position degree and the fitting degree of a cylinder sleeve of a V-shaped aluminum alloy casting sleeve cylinder body is characterized in that:
the cylinder sleeve 6 is arranged in the core making die, the cylinder sleeve and the crankcase are integrally molded into a sand core, the sand core is arranged on the inner wall of the cylinder sleeve, a reserved hole is formed in the middle of the sand core, the cylinder 1 pushes the electromagnetic induction coil 3 to enter the reserved hole for heating, and the temperature of the heating cylinder sleeve reaches a reasonable process range.
Further, a pipe barrel is arranged in the cylinder sleeve, a pipe barrel sand core is arranged in the pipe barrel, the cylinder sleeve, the pipe barrel and the crankcase are integrally molded into the sand core, a hole is drilled in the middle of the pipe barrel sand core, the cylinder 1 pushes the electromagnetic induction coil 3 to enter the hole of the pipe barrel sand core for heating, and the temperature of the heating cylinder sleeve reaches a reasonable process range.
Further, the electromagnetic induction coil 3 was heated for 30 seconds.
Furthermore, the inner wall of the cylinder sleeve is made of an expansion cotton material, so that the cylinder sleeve is prevented from falling off due to a gap between the heated cylinder sleeve and the sand core;
further, after the sand core is integrally formed, the sand core is transferred to a pouring process, and the cold iron, the cold bottom plate, the bottom plate core, the integrally formed sand core, the left side core, the right side core, the front end core, the rear end core, the main oil duct core and the large cover inner sand core are assembled.
Further, after the temperature of the heating cylinder sleeve reaches a reasonable process range, the cylinder runs reversely to take out the electromagnetic induction coil.
Further, the time taken for the core to transit to the casting process was 20 seconds.
Preferably, the aluminum alloy casting cylinder is a V8TD cylinder.
Preferably, the reasonable process range is that the heating temperature of the cylinder sleeve is 200-400 ℃.
Further, the electromagnetic induction coils 3 are fixed on the electromagnetic induction coil fixing device, and four groups of the electromagnetic induction coils 3 are symmetrically arranged on the left and right sides.
Compared with the prior art, the invention has the beneficial effects that:
the invention can improve the position degree of the cylinder sleeve to phi less than or equal to 0.5mm, lead the cylinder sleeve fitting degree to 100 percent and lead the international level (the position degree of the cylinder body of the V-shaped aluminum alloy casting sleeve is phi less than or equal to 1mm and the fitting degree of the cylinder sleeve is 98 percent internationally at present).
Drawings
The invention is further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of an electromagnetic induction coil in a cylinder liner;
FIG. 2 is a schematic view of the integrated molding of a cylinder liner and a sand core;
FIG. 3 is an internal view of an electromagnetic induction coil heating sand bag in a cylinder sleeve;
FIG. 4 is a schematic view of the internal structure of the crankcase core;
FIG. 5 is a drawing of an electromagnetic induction coil heating integral sand pack in a cylinder sleeve;
in the figure:
1-a cylinder;
2-an electromagnetic induction coil fixing device;
3-an electromagnetic induction coil;
4-pipe barrel sand core;
5-electromagnetic induction heating wire hole;
6-cylinder liner;
7-crankcase core;
8-V8 cylinder sand bag;
9-fixed frame
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The invention is described in detail below with reference to the attached drawing figures:
the invention provides a heating technology of a low-pressure sand mold V-shaped aluminum alloy casting sleeve cylinder body, which takes a V8TD cylinder body as an example.
Referring to fig. 1, 2, 3, 4 and 5, a process for improving the position and the fitting degree of a cylinder liner of a V-shaped aluminum alloy casting cylinder body specifically includes the following steps:
(1) when the V-shaped casting sleeve aluminum alloy cylinder body sand core is in a core making process, a cylinder sleeve 6, a cylinder sleeve, a pipe barrel and a crankcase are integrally formed in a core making die, then a hole is drilled in the center of the pipe barrel sand core 4, the diameter of the drilled hole is 25-40 mm, and remarks are made: the inner wall of the cylinder sleeve is made of an expansion cotton material, so that the cylinder sleeve is prevented from falling off due to a gap between the heated cylinder sleeve and the sand core;
(2) transferring the sand core to a pouring process, and assembling a chill, a cold bottom plate, a bottom plate core, a cylinder sleeve, a pipe barrel and crankcase integrated sand core, a left side core, a right side core, a front end core, a rear end core, a main oil duct core and a large cover inner sand core;
(3) the sand bag runs to the next working procedure through the track, the sand bag stops, then the cylinder 1 pushes the electromagnetic induction coil 3 to enter a preformed hole in the middle of the tube barrel sand core for heating, the temperature of the cylinder sleeve reaches a reasonable process range after 30 seconds of heating, and the cylinder runs reversely to take out the electromagnetic induction coil;
(4) the sand bag is assembled with the cover plate core, the rail is conveyed to a robot grabbing position, the robot grabs for pouring, and the time from the heating of the cylinder sleeve to the pouring process is about 20 seconds.
According to the invention, the cylinder sleeve and the sand core are integrated to manufacture the core, so that the position degree of the cylinder sleeve is improved;
the inner wall of the cylinder sleeve is provided with a sand core, the sand core is drilled, and the electromagnetic induction coil penetrates into the hole to heat the cylinder sleeve, so that the thermal stability of the cylinder sleeve is ensured, and the fitting degree of the cylinder sleeve is improved;
expansion cotton is added in the cylinder sleeve to prevent the cylinder sleeve from being heated, expanded and falling off in the electromagnetic induction heating process;
the electromagnetic induction heating structure of the cylinder sleeve is ingenious in design.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims. And those not described in detail in this specification are well within the skill of those in the art.
Claims (10)
1. A technology for improving the position degree and the fitting degree of a cylinder sleeve of a V-shaped aluminum alloy casting sleeve cylinder body is characterized in that:
the cylinder sleeve (6) is arranged in the core making die, the cylinder sleeve and the crankcase are integrally formed into the sand core, the sand core is arranged on the inner wall of the cylinder sleeve, a reserved hole is formed in the middle of the sand core, the cylinder (1) pushes the electromagnetic induction coil (3) to enter the reserved hole to be heated, and the temperature of the heating cylinder sleeve reaches a reasonable process range.
2. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy cast sleeve cylinder body according to claim 1, which is characterized in that:
a pipe barrel is arranged in the cylinder sleeve, a pipe barrel sand core is arranged in the pipe barrel, the cylinder sleeve, the pipe barrel and the crankcase are integrally molded into the sand core, a hole is drilled in the middle of the pipe barrel sand core, the cylinder (1) pushes the electromagnetic induction coil (3) to enter the hole of the pipe barrel sand core for heating, and the temperature of the heating cylinder sleeve reaches a reasonable process range.
3. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy casting cylinder body according to claim 1 or 2, which is characterized in that:
the heating time of the electromagnetic induction coil (3) is 30 seconds.
4. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy casting sleeve cylinder body according to claim 1, which is characterized in that:
the inner wall of the cylinder sleeve is made of expansion cotton, so that the cylinder sleeve is prevented from falling off due to a gap between the heated cylinder sleeve and the sand core.
5. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy casting cylinder body according to claim 1 or 2, which is characterized in that:
after the sand core is integrally formed, the sand core is transferred to a pouring process, and the cold iron, the cold bottom plate, the bottom plate core, the integrally formed sand core, the left side core, the right side core, the front end core, the rear end core, the main oil duct core and the large cover inner sand core are assembled.
6. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy casting cylinder body according to claim 1 or 2, which is characterized in that:
and after the temperature of the heating cylinder sleeve reaches a reasonable process range, the cylinder reversely runs to take out the electromagnetic induction coil.
7. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy casting sleeve cylinder body according to claim 5, wherein the process comprises the following steps:
the time from the sand core transfer to the pouring process is 20 seconds.
8. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy casting sleeve cylinder body according to claim 1, which is characterized in that:
the aluminum alloy casting cylinder is a V8TD cylinder.
9. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy cast sleeve cylinder body according to claim 1 or 2, which is characterized in that:
the reasonable process range is that the heating temperature of the cylinder sleeve is 200-400 ℃.
10. The process for improving the position degree and the fitting degree of the cylinder sleeve of the V-shaped aluminum alloy casting sleeve cylinder body according to claim 1, which is characterized in that:
the electromagnetic induction coils (3) are fixed on the electromagnetic induction coil fixing device, and the electromagnetic induction coils (3) are arranged in four groups in a bilateral symmetry mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210372377.4A CN114850446A (en) | 2022-04-11 | 2022-04-11 | Process for improving position degree and fitting degree of cylinder sleeve of V-shaped aluminum alloy casting sleeve cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210372377.4A CN114850446A (en) | 2022-04-11 | 2022-04-11 | Process for improving position degree and fitting degree of cylinder sleeve of V-shaped aluminum alloy casting sleeve cylinder body |
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| CN114850446A true CN114850446A (en) | 2022-08-05 |
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| CN202210372377.4A Pending CN114850446A (en) | 2022-04-11 | 2022-04-11 | Process for improving position degree and fitting degree of cylinder sleeve of V-shaped aluminum alloy casting sleeve cylinder body |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0280675A2 (en) * | 1987-02-25 | 1988-08-31 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List | Mould for a crankcase |
| US5361823A (en) * | 1992-07-27 | 1994-11-08 | Cmi International, Inc. | Casting core and method for cast-in-place attachment of a cylinder liner to a cylinder block |
| US5365997A (en) * | 1992-11-06 | 1994-11-22 | Ford Motor Company | Method for preparing an engine block casting having cylinder bore liners |
| US20020185251A1 (en) * | 2001-06-11 | 2002-12-12 | Kaminski Brian D. | Casting of engine blocks |
| JP2006122942A (en) * | 2004-10-28 | 2006-05-18 | High Frequency Heattreat Co Ltd | Insert casting method of cylindrical member, and induction heating device |
| US20060157216A1 (en) * | 2003-07-16 | 2006-07-20 | Bend Robert J | Cylinder liner improvements |
| US20060207093A1 (en) * | 2003-02-14 | 2006-09-21 | Bend Robert J | Cleaning and heating of iron liners for casting aluminum cylinder blocks |
| CN101890490A (en) * | 2010-06-25 | 2010-11-24 | 温州瑞明工业股份有限公司 | Low-pressure casting process of metal pattern die pre-casting cylinder sleeve of V-shaped aluminum alloy cylinder body |
| CN201900224U (en) * | 2010-12-10 | 2011-07-20 | 中国第一汽车集团公司 | Casted aluminum cylinder body sand core structure for induction heating of cylinder sleeve |
-
2022
- 2022-04-11 CN CN202210372377.4A patent/CN114850446A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0280675A2 (en) * | 1987-02-25 | 1988-08-31 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List | Mould for a crankcase |
| US5361823A (en) * | 1992-07-27 | 1994-11-08 | Cmi International, Inc. | Casting core and method for cast-in-place attachment of a cylinder liner to a cylinder block |
| US5365997A (en) * | 1992-11-06 | 1994-11-22 | Ford Motor Company | Method for preparing an engine block casting having cylinder bore liners |
| US20020185251A1 (en) * | 2001-06-11 | 2002-12-12 | Kaminski Brian D. | Casting of engine blocks |
| US20060207093A1 (en) * | 2003-02-14 | 2006-09-21 | Bend Robert J | Cleaning and heating of iron liners for casting aluminum cylinder blocks |
| US20060157216A1 (en) * | 2003-07-16 | 2006-07-20 | Bend Robert J | Cylinder liner improvements |
| JP2006122942A (en) * | 2004-10-28 | 2006-05-18 | High Frequency Heattreat Co Ltd | Insert casting method of cylindrical member, and induction heating device |
| CN101890490A (en) * | 2010-06-25 | 2010-11-24 | 温州瑞明工业股份有限公司 | Low-pressure casting process of metal pattern die pre-casting cylinder sleeve of V-shaped aluminum alloy cylinder body |
| CN201900224U (en) * | 2010-12-10 | 2011-07-20 | 中国第一汽车集团公司 | Casted aluminum cylinder body sand core structure for induction heating of cylinder sleeve |
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