CN101380662B - Car engine cylinder body casting mold and manufacture method thereof - Google Patents
Car engine cylinder body casting mold and manufacture method thereof Download PDFInfo
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- CN101380662B CN101380662B CN 200810148824 CN200810148824A CN101380662B CN 101380662 B CN101380662 B CN 101380662B CN 200810148824 CN200810148824 CN 200810148824 CN 200810148824 A CN200810148824 A CN 200810148824A CN 101380662 B CN101380662 B CN 101380662B
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- 238000013461 design Methods 0.000 claims abstract description 8
- 239000003110 molding sand Substances 0.000 claims description 26
- 238000013459 approach Methods 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 14
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a cast for a cylinder of a vehicle engine and a manufacturing method thereof. The method includes: carrying out cast design: the cast thereof is divided into a plurality of cylinder profile sand mold units and a plurality of cylinder inner cavity sand mold units according to the shapes of the internal structure and the external structure of the cylinder of the vehicle engine; then improved 'mold-free method' and 'mold method' are respectively adopted for manufacturing each sand mold unit; then treatments on the dopes for baking, grinding, repairing, coating and casting are carried out for each sand mold unit; finally the manufactured sand mold units are assembled into a complete cast. The invention carries out improvement on the existing 'mold-free cast manufacture method' and comprehensively adopts the existing 'mold cast manufacture method' and the improved 'mold-free cast manufacture method' for manufacturing the cast of the cylinder of the vehicle engine, thus achieving the effects of reducing the cost, shortening the period and improving the quality; besides, the invention has broad application values.
Description
Technical field
The present invention relates to casting mold manufacturing technology field, particularly car engine cylinder body casting mold and the manufacturing approach thereof of cast.
Background technology
Automobile engine cylinder-body generally adopts material castings such as cast iron, aluminium alloy to form.The key link of casting technique is that the casting mold of foundry goods is made.For the casting of automobile engine cylinder-body; At first need process corresponding casting mold according to the shape of cylinder body; Casting mold is generally metal mold or sand mold, and the method through cast pours into liquid metal the shape that forms cylinder body in the cavity of casting mold then, breaks away from casting mold at last again and obtains cylinder body.
Traditional sand mold adopts basically so-called " the model sand mold manufacturing approach is arranged " (abbreviation has modulus method), promptly at first processes corresponding mould such as wooden model, metal pattern or plastics mould etc. according to the shape of foundry goods, and then utilizes these moulds to process sand mold.In the prior art, be mostly to make wooden model, not only waste time and energy with woodworking machinery or home built mode, and the distortion of making moist easily of produced wooden model, crack durable.In order to overcome the above-mentioned defective of wooden model, often adopt metal pattern or plastics mould to replace wooden model, but this will cause cost too high, production process is complicated.
For automobile engine cylinder-body, because surface configuration is very complicated, if adopt above-mentioned " the model sand mold autofrettage is arranged " to make mould, then corresponding mould designs and casting mold manufacturing process is numerous and diverse, the cycle is very long, cost is too high.
Based on the above-mentioned shortcoming of " the model sand mold manufacturing approach is arranged ", so-called " non die-casting type manufacturing " (Patternless Casting Manufacturing is called for short PCM), appearred in recent years, and this technology comes into one's own day by day and uses.Application number is 200610123837.0; The application for a patent for invention that name is called " making the new method of casting mould and the casting mould that makes according to this method " discloses a kind of " non-model sand mold forming technology " i.e. " non-model sand mold manufacturing approach " (being called for short no modulus method); Its technical scheme comprises: at first modeling, obtain the three-dimensional digital model of casting mold mould, and then this three-dimensional digital model is carried out layering according to certain thickness; Obtain the X-Y scheme of each layer cross section; When being shaped, by specific Equipment Control sand grains is successively sprawled with lift height and to be stacked on the equipment workbench, on every layer of sand of completing, apply binding agent; Make the 3D solid of the bonding one-tenth of sand grains in all X-Y scheme entity scopes, remove not bonding sand grains afterwards again and obtain a sand mold.
Above-mentioned " no modulus method " compared with " modulus method is arranged ", saved the step of mfg. moulding die, shortened the casting mold manufacturing cycle, reduced cost.But; For the outside so existing complex unevenness on its face of automobile engine cylinder-body simple flat surface is arranged again; Inner have not of uniform size, the different cavity and the foundry goods of pipeline again, once accomplishes shaping with " non-model sand mold manufacturing approach " though can accomplish type, core, because the sand mold blank of making can't carry out surface treatment to inside; Therefore must the engine cylinder-body block mold be resolved into several sand mold unit (being somatotype); And then be combined as a casting mold (being mould assembly), and when somatotype is made the sand mold unit, if only single use a kind of " non-model sand mold manufacturing approach " or " the model sand mold manufacturing approach is arranged " all can not reach the best requirement of cost and quality.
Summary of the invention
Deficiency to prior art; The technical problem that the present invention will solve is; A kind of car engine cylinder body casting mold and manufacturing approach thereof are proposed; " no modulus method " and " modulus method is arranged " integrated use in the manufacturing of car engine cylinder body casting mold, both can be solved the problem that " modulus method is arranged " manufacturing process is numerous and diverse, the cycle is very long, can further improve again " no modulus method " working (machining) efficiency, cut down finished cost, improve the quality.
For solving above-mentioned technical problem, the present invention provides a kind of preparation method of car engine cylinder body casting mold, may further comprise the steps:
Particularly, for said cylinder body profile sand mold unit, adopt improved " no modulus method " manufacturing step described in the step 2 following in the step 2 with male and fomale(M&F):
Step 21, process the bed load layer according to the bottom profile of described cylinder body profile sand mold unit;
Step 22, on the bed load layer, make the abutment wall of molding sand layer with " no modulus method ";
Loose sand in the headspace that step 23, removing abutment wall surround, back-up sand is also wipeed off and is processed the back-up sand layer;
Step 24, on the back-up sand layer, make molding sand (integral body) layer with casting of metals liquid phase contact-making surface with " no modulus method ".
The step that adopts improved " no modulus method " to make to said inner chamber of cylinder block sand mold unit in the step 2 is following:
The molding sand layer of sand mold unit and metal liquid contact-making surface is processed in step 25, employing " no modulus method ";
Step 26, remove loose sand after, in the headspace in the molding sand layer back-up sand to being full of this sand mold unit, thereby form the back-up sand layer.
Wherein, used sand is called for short self-hardening sand for by sand and the composite material with material of viscosity in the bed load layer that relates in back-up sand layer that relates in above-mentioned steps 26 and the step 23 and the step 22.
The present invention also provides a kind of car engine cylinder body casting mold of making according to said method, and said casting mold comprises by 4 side surface sand mold unit (1,2; 3,4), the cylinder body profile sand mold unit of the upper and lower surperficial sand mold unit (5,6) of cylinder body formation; With the inner chamber of cylinder block sand mold unit that is made up of cylinder sleeve core sand type unit (7), jacket core sand mold unit (8) and oil back chamber core sand type unit (9), wherein, the assembling joint face of above-mentioned each sand mold unit is provided with the location structure that cooperatively interacts; Through this location structure each sand mold unit is fitted together, the space between each sand mold unit, combination back constitutes casting space, wherein; Said 4 side surface sand mold unit (1,2,3; 4) adopt improved " no modulus method " manufacturing step to make, comprise bed load layer, back-up sand layer and molding sand layer; The upper and lower surperficial sand mold unit (5,6) of cylinder body adopts has the modulus method manufacturing; Cylinder sleeve core sand type unit (7), jacket core sand mold unit (8) and oil back chamber core sand type unit (9) adopt improved " no modulus method " manufacturing step to make, and comprise back-up sand layer and molding sand layer.
The present invention improves existing " non die-casting type manufacturing approach "; And comprehensive the employing improved back " non die-casting type manufacturing approach " and " the proplasm manufacturing approach is arranged "; Be used for the manufacturing of car engine cylinder body casting mold; Can reach the effect that cost reduces, the cycle shortens, quality improves, be with a wide range of applications.
Description of drawings
Fig. 1 is the flow chart of manufacturing approach of the car engine cylinder body casting mold of one embodiment of the invention;
Fig. 2 is the decomposition aspect graph of the casting mold sand mold of one embodiment of the invention engine cylinder-body;
Fig. 3 is the profile that each casting mold unit of one embodiment of the invention engine cylinder-body is assembled into the center line longitudinally of a casing;
Fig. 4 is the cutaway view of the A-A face of Fig. 3;
Fig. 5 is the partial enlarged drawing of Fig. 4;
Fig. 6 is the casting process flow chart of one embodiment of the invention engine cylinder-body.
The specific embodiment
Referring to Fig. 1, for the flow chart of the manufacturing approach of the car engine cylinder body casting mold of one embodiment of the invention,, be the casting process flow chart of one embodiment of the invention engine cylinder-body in addition referring to Fig. 6, wherein the flow process of Fig. 1 is the step 1 among Fig. 6.
Step S100, carry out casting mold design,, its casting mold is divided into several casting mold unit (because the present invention adopts sand material, therefore be also referred to as chiltern casting mold unit, or abbreviate the sand mold unit as) according to the different structure shape of automobile engine cylinder-body.When concrete design; To the corresponding cylinder body profile of its outer surface shaped design sand mold unit; The sand mold of each shown in Fig. 2 unit 1-6 for example is for the corresponding inner chamber of cylinder block sand mold of the internal cavities shaped design unit of engine cylinder-body, the for example sand mold of each shown in Fig. 2 unit 7-9;
Step S200, analyze the complex structure degree of each sand mold unit; Which is confirmed adopt improved " no modulus method " to make, which adopts " modulus method is arranged " to make embodiment as shown in Figure 2; For baroque sand mold unit; As have sand mold unit 1-4,7-9 employing improved " no modulus method " manufacturing that complex unevenness on its is surperficial and lacuna is surperficial, and for the simpler relatively sand mold unit of structure, as sand mold unit 5,6 employing " modulus method is arranged " manufacturings with simple flat surface.
Sand mold unit 1-4,7-9 are made in step S300, employing improved " no modulus method ";
Step S400, employing " have modulus method " and make sand mold unit 5-6;
Step S500, each sand mold unit of making is toasted, polishes, repairs, applies foundry facing handle;
Step S600, the sand mold unit that each manufacturing is good are assembled into a complete casting mold.
State diagram when Fig. 2 each sand mold unit that to be an embodiment engine cylinder casting mold process by above-mentioned steps S300 and step S400 is unassembled also can be referred to as the decomposition aspect graph of engine cylinder body casting mold.Form when not assembling by each sand mold unit that can find out this engine cylinder body casting mold among the figure.This casting mold comprises 4 side surface sand molds Unit the 1st, 2,3,4 (hereinafter to be referred as unit 1,2,3,4), cylinder body upper surface sand mold unit 5 (hereinafter to be referred as unit 5), the cylinder body lower surface sand mold unit 6 (hereinafter to be referred as unit 6) of cylinder body; Cylinder sleeve core sand type unit 7 (hereinafter to be referred as unit 7), jacket core sand mold unit 8 (hereinafter to be referred as unit 8) and 4 oil back chamber core sand type unit 9 (hereinafter to be referred as unit 9), wherein label is 10 the running gate system that is.
The bottom of unit 1,2,3,4 respectively is provided with locating piece 1.4,2.4,3.4 (not shown), 4.4; On the unit 5 respectively correspondence be provided with locating slot 5.1.4,5.2.4,5.3.4; 5.4.4 unit 1,2,3,4 is inserted in the corresponding locating slot 5.1.4 on the unit 5,5.2.4 through locating piece separately; 5.3.4, in the 5.4.4, thereby unit 1,2,3,4,5 is fitted together.
1,2,3,4 tops, unit are provided with 4 locating holes 1.5,2.5,3.5; 4.5 the correspondence position of the bottom of unit 6 is provided with 4 angles 6.4, after other unit fit together; 4 angles 6.4 are inserted in the locating hole 1.5,2.5,3.5 at 1,2,3,4 tops, unit; 4.5 in, thereby unit 6 is covered on unit 1,2,3,4,7,9, fit together.
The bottom of unit 7 is provided with a positioning strip 7.4, and the correspondence position on the unit 5 is provided with on the locating slot 5.7.4.Unit 7 fits together the two through the mode that positioning strip 7.4 is inserted in the locating slot 5.7.4 on the unit 5.The top of unit 7 also is provided with two locating holes 7.5, matches with two angles of 6 bottoms, unit.
The bottom of unit 8 is provided with 10 arc angles 8.4, and the correspondence position on the unit 5 is provided with 10 arc positioning groove 5.8.4, and unit 8 fits together the two through the mode among the arc positioning groove 5.8.4 that this arc angle 8.4 is inserted in unit 5.
Unit 9 comprises 4 oil back chamber cores 9.1, and the angle 9.4 of its bottom is corresponding respectively to be assembled among 4 locating hole 5.9.4 of unit 5.The angle 9.5 at its top is corresponding respectively to be assembled among 4 locating hole 6.9.5 of unit 6.
The casting mold that assembles the longitudinally profile of center line is as shown in Figure 3, and Fig. 4 is the cutaway view of the A-A face of Fig. 3.
Because when making sand mold unit 1-4,7-9; Its preparation method and " no modulus method " of the prior art are also incomplete same; Idiographic flow is: for inner chamber of cylinder block sand mold unit; At first adopt " no modulus method " to make the molding sand layer of sand mold unit and casting of metals liquid contact surface, then by manual work in the headspace of molding sand layer inboard back-up sand to being full of this sand mold unit.For cylinder body profile sand mold unit; At first process the bed load layer according to the bottom profile of sand mold unit; On the bed load layer, use " no modulus method " to make the abutment wall of molding sand layer then; Remove the loose sand in the headspace that abutment wall surrounds then, insert self-hardening sand and wipe off and process the back-up sand layer, on the back-up sand layer, make the molding sand layer then and form the molding sand layer with the contacting surface layer of casting of metals liquid with " no modulus method ".
Therefore, in a unit, will form a plurality of layers of sand, like Fig. 3, shown in 4.
Fig. 3,4 left side are the profile of unit 2, comprise molding sand layer 2.1 and artificial back-up sand layer 2.2 and bed load layer 2.3 that employing " no modulus method " is made; Fig. 3,4 right side are the profile of unit 4, comprise molding sand layer 4.1 and back-up sand layer 4.2 and bed load layer 4.3 that employing " no modulus method " is made; Fig. 3,4 bottom are the profile of unit 1, comprise molding sand layer 1.1 and back-up sand layer 1.2 and bed load layer 1.3 that employing " no modulus method " is made; The top of Fig. 4 is the profile of unit 3, comprises molding sand layer 3.1 and back-up sand layer 3.2 and bed load layer 3.3 that employing " no modulus method " is made; The profile of unit 7 can be seen in the middle part of Fig. 4, comprises molding sand layer 7.1 and back-up sand layer 7.2 that employing " no modulus method " is made; The unit 8 of employing " no modulus method " making and the profile of unit 9 also can be seen in the middle part of Fig. 4.
Wherein, the back-up sand layer of each unit and bed load layer are to be processed by sand and composite material with cohesive material, and be this by sand and have the material that cohesive material mixes and be called self-hardening sand.
In addition,, according to circumstances in each unit or part unit, be provided with member-arbor of reinforcing sand mold in order to play the effect of reinforcing sand mold, as shown in Figure 3 in the unit 4 arbors 7.5 that cylinder sleeve cores middle part is buried underground of 7; As shown in Figure 4 in the unit 4 arbors 9.5 that oil back chamber core center is buried underground of 9; As shown in Figure 5, arbor 8.5 of in unit 8, burying underground or the like.Can certainly in unit 1-4, bury arbor underground in different places, can decide according to actual conditions as for burial place and size, length, shape etc.
Have again; Because to mould assembly (being complete casting mold) when pouring into a mould; The metal liquid temperature is very high; Be the casting quality problem that prevents to cause, can the gas exhaust piping that the gas that produce in the casting process can be discharged axially or radially be set along it making unit 7,8,9 o'clock, the blast pipe 7.6 that 4 cylinder sleeves middle parts of 7 are provided with in the unit as shown in Figure 3 etc. owing to the gas drainage difficulty in the mould assembly.
Fig. 5 is the section partial enlarged drawing of the unit 8 among Fig. 4.Comprising the molding sand layer 8.1, artificial back-up sand layer 8.2 and the arbor 8.5 that adopt " no modulus method " to make.Can find out that said arbor 8.5 is positioned at back-up sand layer 8.2, can play the effect of reinforcing sand mold.
Because the structure of unit 1-4 and 7-9 is very complicated, therefore, adopt " no modulus method " to make; If but only merely adopted existing " no modulus method " to make, it would be longer man-hour to take equipment, and higher to the quality requirement of sand; Also more bonding agent to be used, a lot of costs can be increased.Making to sand mold should reduce cost satisfying under the prerequisite of quality requirement as much as possible.
Therefore, the present invention improves existing " no modulus method ", adopts existing " no modulus method " to make to unit and metal liquid contact-making surface one deck, processes like the molding sand layer among Fig. 3,4 1.1,2.1,3.1,4.1,7.1.In the inboard preset certain space of these molding sand layers, fill self-hardening sand through manual work to this space, process like the back-up sand layer among Fig. 3,4 1.2,2.2,3.2,4.2,7.2.4 side surface sand mold unit 1,2,3,4 for cylinder body profile sand mold unit such as Fig. 4; Its outermost all is the plane; Therefore need only surround a rectangle with wooden frame by manual work; Be filled into self-hardening sand and strickling then, remove wooden frame again, promptly process like the bed load layer among Fig. 4 1.3,2.3,3.3,4.3.
In order to reach the effect of strengthening sand mold, the more pre-buried arbor that plays stiffening effect in the back-up sand layer, like the arbor 9.5 that 9 cores of unit among Fig. 4 are buried underground, arbor 8.5 of in unit 8, burying underground among Fig. 5 or the like.
For unit 5 and 6,, therefore, adopt " modulus method is arranged " to make because its structure is simple relatively.Can see the section of the unit 6 that employing " has modulus method " and makes from the top of Fig. 3, comprise angle 6.4, angle 6.4 can insert respectively in the locating hole 2.5 and 4.5 of unit 2, unit 4.
Can see the section of the unit 5 that employing " has modulus method " and makes from the bottom of Fig. 3, comprise locating slot 5.8.4, the angle 8.4 of locating slot 5.8.4 and unit 8 is worked in coordination together.
Can see also that from the bottom of Fig. 3 unit 5 is placed on above the running gate system 10.Can see that from Fig. 2 it is ingate 5.10 that unit 5 is provided with 12 strip through-holes, corresponding with the belt cross gate 10.1 on the running gate system 10.
Each above-mentioned sand mold unit carries out baking processing after making completion, baking temperature is 100 to 130 degrees centigrade, and stoving time is 1 to 2 hour.After baking processing; The surface that each sand mold unit is contacted with the metal liquid processing of polishing; Eliminating the overlap that stepped vestige that " no modulus method " form on the sand mold surface and " modulus method is arranged " form on the sand mold surface, and the defective on sand mold surface is repaired.Then, the surface applied foundry facing that each sand mold unit is contacted with metal liquid.
After surface treatment finishes, above-mentioned each unit is assembled into mould assembly after, as shown in Figure 6, put into a sandbox, and with filling up self-hardening sand in the space between unit 1-4 and sandbox.Sandbox is processed by metal material, and mould assembly is played the effect of fixing and preventing to walk, and also is provided with on the sandbox and takes out hand, conveniently to carry and to devan.
Metal liquid injects from cup when cast; Get into runner gate 10.2 and belt cross gate 10.1 through sprue; Be full of upwards buoyance lift of circular cross-runner 10.1 backs; 12 ingates 5.10 through unit 5 get into the casting space that each unit surrounds, and after metal liquid is full of casting space, rise to unit 6, until from the rising head 6.1 of unit 6, overflowing.
Casting complete and place a period of time after remove sandbox, remove each sand mold unit is broken, then foundry goods is carried out post processing and comprises figuring of surface, ball blast etc., promptly obtain the engine cylinder-body foundry goods.
The present invention comprehensively adopts " the non die-casting type manufacturing approach " and " the proplasm manufacturing approach is arranged " improved, is used for the manufacturing of car engine cylinder body casting mold, can reach the effect that cost reduces, the cycle shortens, quality improves, and is with a wide range of applications.
It should be noted last that: above embodiment is only unrestricted in order to explanation the present invention; Although the present invention is specified with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that; The modification of under the premise without departing from the spirit and scope of the present invention the present invention being carried out perhaps is equal to replacement, all should be encompassed in the middle of the claim scope of the present invention.
Claims (12)
1. the manufacturing approach of a car engine cylinder body casting mold is characterized in that, may further comprise the steps:
Step 1, carry out casting mold design,, its casting mold is divided into a plurality of cylinder body profiles sand mold unit and a plurality of inner chamber of cylinder block sand molds unit according to the external structure and the internal structure shape of automobile engine cylinder-body;
Step 2, according to the complex structure degree of each sand mold unit; For complex structure, cylinder body profile sand mold unit and inner inner chamber of cylinder block sand mold unit with not of uniform size, different cavity and pipeline with male and fomale(M&F); Adopt improved " no modulus method " to make; Simple relatively for structure, as to have plane cylinder body profile sand mold unit adopts " modulus method is arranged " to make;
Step 3, the processing that each sand mold unit of making was toasted, polishes, repairs, applied foundry facing;
Step 4, each sand mold unit of handling well is assembled into a complete casting mold,
Wherein, said cylinder body profile sand mold unit with male and fomale(M&F) adopts improved " no modulus method " manufacturing step described in the step 2 following:
Step 21, process the bed load layer according to the bottom profile of described cylinder body profile sand mold unit;
Step 22, on the bed load layer, make the abutment wall of molding sand layer with " no modulus method ";
Loose sand in the headspace that step 23, removing abutment wall surround, back-up sand is also wipeed off and is processed the back-up sand layer;
Step 24, usefulness " no modulus method " making and the contacted molding sand layer of metal liquid on the back-up sand layer.
2. the manufacturing approach of car engine cylinder body casting mold according to claim 1 is characterized in that, adopts improved " no modulus method " manufacturing step following to said inner chamber of cylinder block sand mold unit in the step 2:
The molding sand layer of sand mold unit and metal liquid contact-making surface is processed in step 25, employing " no modulus method ";
Back-up sand is to being full of this sand mold unit in step 26, the headspace in the molding sand layer, thereby forms the back-up sand layer.
3. the manufacturing approach of car engine cylinder body casting mold according to claim 1 is characterized in that, the sand of said back-up sand layer and said bed load layer is by sand and the composite material with material of viscosity.
4. the manufacturing approach of car engine cylinder body casting mold according to claim 2 is characterized in that, in step 26, imbeds the member-arbor that is used to reinforce sand mold that adapts with the sand mold cell configuration in the headspace in the molding sand layer in the back-up sand process.
5. the manufacturing approach of car engine cylinder body casting mold according to claim 1; It is characterized in that; When in step 2, making inner chamber of cylinder block sand mold unit, the gas exhaust piping that gas that the sand mold unit is produced can be discharged is set vertically or radially in casting process.
6. the car engine cylinder body casting mold of the method for a car engine cylinder body casting mold according to claim 1 and 2 making is characterized in that said casting mold comprises by 4 side surface sand mold unit (1; 2,3,4), the upper and lower surperficial sand mold unit (5 of cylinder body; 6) cylinder body profile sand mold unit that constitutes and the inner chamber of cylinder block sand mold unit that constitutes by cylinder sleeve core sand type unit (7), jacket core sand mold unit (8) and oil back chamber core sand type unit (9), wherein; The assembling joint face of above-mentioned each sand mold unit is provided with the location structure that cooperatively interacts, and through this location structure each sand mold unit is fitted together, and the space between each sand mold unit, combination back constitutes casting space; Wherein, said 4 side surface sand mold unit (1,2; 3,4) adopt improved " no modulus method " manufacturing step to make, comprise bed load layer, back-up sand layer and molding sand layer; The upper and lower surperficial sand mold unit (5,6) of cylinder body adopts has the modulus method manufacturing; Cylinder sleeve core sand type unit (7), jacket core sand mold unit (8) and oil back chamber core sand type unit (9) adopt improved " no modulus method " manufacturing step to make, and comprise back-up sand layer and molding sand layer.
7. car engine cylinder body casting mold according to claim 6 is characterized in that, the shape that in said part or all of sand mold unit, is embedded with one or more shapes and sand mold unit adapts, is used to reinforce the member-arbor of sand mold.
8. car engine cylinder body casting mold according to claim 7 is characterized in that, said member is mild steel or iron member.
9. car engine cylinder body casting mold according to claim 6 is characterized in that, is provided with vertically in the said inner chamber of cylinder block sand mold unit or gas exhaust piping that the gas that sand mold is produced in casting process radially can be discharged.
10. car engine cylinder body casting mold according to claim 6 is characterized in that, the said location structure that cooperatively interacts comprises locating slot and positioning strip/piece fit structure, locating hole and angle fit structure.
11. car engine cylinder body casting mold according to claim 6 is characterized in that, upper surface sand mold unit (5) is provided with the ingate that makes metal liquid flow into the casting-up space.
12. car engine cylinder body casting mold according to claim 6 is characterized in that, said lower surface sand mold unit (6) is provided with and makes metal liquid be full of the rising head that overflows behind the casting-up space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810148824 CN101380662B (en) | 2008-09-27 | 2008-09-27 | Car engine cylinder body casting mold and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810148824 CN101380662B (en) | 2008-09-27 | 2008-09-27 | Car engine cylinder body casting mold and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101380662A CN101380662A (en) | 2009-03-11 |
| CN101380662B true CN101380662B (en) | 2012-04-25 |
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| CN102632199A (en) * | 2012-03-09 | 2012-08-15 | 华东泰克西汽车铸造有限公司 | High-precision crankcase core module and assembly method thereof |
| CN102615247B (en) * | 2012-03-26 | 2014-04-02 | 苏州明志科技有限公司 | Core combining method |
| CN102699282B (en) * | 2012-05-15 | 2013-11-13 | 日月重工股份有限公司 | Casting method of large-scale high pressure resisting multi-cylinder-block cast |
| WO2014085430A2 (en) * | 2012-11-27 | 2014-06-05 | Quinton Aaron S | Stabilized engine casting core assembly, method for making an engine body, and engine body formed thereby |
| CN104550710B (en) * | 2014-12-12 | 2016-11-23 | 广东峰华卓立科技股份有限公司 | A kind of method for fast mfg inlaying cylinder sleeve aluminium alloy cylinder foundry goods |
| CN104772434B (en) * | 2015-04-30 | 2018-01-16 | 成都桐林铸造实业有限公司 | A kind of cylinder body lock core frame |
| CN105415122B (en) * | 2015-12-30 | 2017-08-04 | 浙江万丰科技开发股份有限公司 | A kind of automation polishing production line of engine cylinder-body |
| CN108971437A (en) * | 2018-08-01 | 2018-12-11 | 广西玉柴机器股份有限公司 | The casting sand core production method of cylinder of diesel engine and cylinder head variant machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003230941A (en) * | 2002-02-06 | 2003-08-19 | Kimura Chuzosho:Kk | Method for manufacturing fluid sand self-curing mold |
| CN1962220A (en) * | 2006-11-24 | 2007-05-16 | 佛山市峰华自动成形装备有限公司 | Method for manufacturing ceramic cleaning tool model and ceramic cleaning tool model manufactured therefrom |
| CN101214529A (en) * | 2007-12-28 | 2008-07-09 | 佛山市峰华自动成形装备有限公司 | Non-model sand mold fast manufacturing technique |
-
2008
- 2008-09-27 CN CN 200810148824 patent/CN101380662B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003230941A (en) * | 2002-02-06 | 2003-08-19 | Kimura Chuzosho:Kk | Method for manufacturing fluid sand self-curing mold |
| CN1962220A (en) * | 2006-11-24 | 2007-05-16 | 佛山市峰华自动成形装备有限公司 | Method for manufacturing ceramic cleaning tool model and ceramic cleaning tool model manufactured therefrom |
| CN101214529A (en) * | 2007-12-28 | 2008-07-09 | 佛山市峰华自动成形装备有限公司 | Non-model sand mold fast manufacturing technique |
Non-Patent Citations (3)
| Title |
|---|
| 姚山等.基于覆膜砂激光快速成型的无模快速铸造方法研究.《铸造技术》.2006,第27卷(第5期),458-460. * |
| 张人佶等.无模铸型制造技术在快速模具中的应用.《电加工与模具》.2006,59-62. * |
| 郗志刚等.基于无模铸造技术的复杂铸件快速制造.《铸造技术》.2007,第28卷(第8期),1030-1033. * |
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