CN107350429B - A kind of mixing primary and secondary cored-up mould technique - Google Patents
A kind of mixing primary and secondary cored-up mould technique Download PDFInfo
- Publication number
- CN107350429B CN107350429B CN201710442909.6A CN201710442909A CN107350429B CN 107350429 B CN107350429 B CN 107350429B CN 201710442909 A CN201710442909 A CN 201710442909A CN 107350429 B CN107350429 B CN 107350429B
- Authority
- CN
- China
- Prior art keywords
- core
- sand
- casting
- sub
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/108—Installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of mixing primary and secondary cored-up mould techniques, 3D printing moulding and mulling formative technology are combined, the more part of product section structure feature be will be close to using 3D printing, the less part of other structures feature is using traditional mulling moulding process, to form the fabricated sand mold mould that body core and sub- core are used cooperatively, under the advantage of original 3D printing Modeling Technology, introduce traditional sand mixer production technology, two kinds of formative technologies are combined, thereby reduce the cost of raw material and equipment input cost, while by the sand mold part for taking casting out of and taking running gate system out of, the mold thickness for increasing intensity carries out letter and core is divided to combine, it is combined for later Alternative and extends thinking；The quantity for increasing single sandbox medium casting, improves sandbox utilization rate and production efficiency, while reducing to artificial dependence, reduces the 3D printing cost of raw material and equipment depreciation, while avoiding the waste of molten iron, has achieved the purpose that cost efficiency.
Description
Technical field
The present invention relates to casting technology fields, more particularly to a kind of mixing primary and secondary cored-up mould technique.
Background technique
By taking -40 pump housing of important spare part tune of railway locomotive as an example, material HT200, overall size 163mm ×
149mm × 113mm, quality 5.3Kg belong to gray iron small pieces.Because belonging to small pieces, casting type chamber is smaller, wherein
Need to cast out oil pipe intracavity diameter and there was only 15mm, sand core is more demanding, previous traditional handicraft frequently with tung oil sand do inner cavity core and
Arbor is added, resin sand does a variety of techniques being used in mixed way with sand of external form；Due to needing independent lower inner cavity core, traditional handicraft is often adopted
The mode poured, sandbox medium casting negligible amounts are put down with flat casting, and must could be completed by the veteran foundry work of hand moulding.This
Kind method is big to artificial dependence, and for placer iron than high, production efficiency is low.
Using 3D printing Modeling Technology, original small inner cavity core can be taken out of realization and modularization moulding by external model, it is real
It is now moulded without mould；Along with the technique of series pouring, it can realize that more than one piece is poured in a sandbox, increase production efficiency.
But monolith printing is directly carried out with 3D printing Modeling Technology, not only need to print the sand mold for taking casting out of, but also necessary
It gets additional mold thickness and guarantees sand mold intensity, since the prices of raw materials such as the molding sand, resin, curing agent of 3D printing are than tradition
The prices of raw materials of mulling machine modeling are much higher, and therefore, it is difficult to reduce the cost of production；Monolith prints sand core simultaneously, due to casting
Inner cavity sand core diameter is smaller, and 3D printing moulding cannot add arbor enhancing sand core strength, therefore in sand core group core and transport
Inevitably damage string pours individual core cavity types in module sand core in journey, and cannot replace can not repair, and can only then be poured, from
And the waste of molten iron is caused, and then increase rejection rate, cost is further increased, the advantage that 3D printing string pours also receives
Weaken.
Summary of the invention
It is an object of the invention to: overcome the above-mentioned problems in the prior art, proposes that a kind of mixing primary and secondary group core is made
Type technique introduces traditional sand mixer production technology, two kinds of formative technologies is mutually tied under the advantage of original 3D printing Modeling Technology
Close, thereby reduce the cost of raw material and equipment input cost, at the same by the sand mold part for taking casting out of and take out of running gate system,
The mold thickness for increasing intensity carries out letter and core is divided to combine, and combines for later Alternative and extends thinking；It increases in single sandbox
The quantity of casting improves sandbox utilization rate and production efficiency, while reducing to artificial dependence, reduces 3D printing former material
Expect cost and equipment depreciation, while avoiding the waste of molten iron, achievees the purpose that cost efficiency.
The purpose of the present invention is realized by following technical proposals:
A kind of mixing primary and secondary cored-up mould technique, 3D printing moulding and mulling formative technology are combined, will be close to product
The more part of part-structure feature uses 3D printing, and the less part of other structures feature is using traditional mulling formative technology side
Method, so that the fabricated sand mold mould that body core and sub- core are used cooperatively is formed, specifically includes the following steps:
S1: it the foundation of product threedimensional model: is established correctly according to the two-dimentional drawing requirement of casting 3 d modeling software
Moulds Based on Three-Dimensional Models；
S2: the determination of pouring technology scheme: series pouring scheme is used, and is arranged in multi-layer multi-row matrix form；
S3: figure the design of three-dimensional foundary methods drawing: is drawn according to the arrangement mode in S2 step in 3 d modeling software
Shape, and corresponding running gate system and riser are drawn out, designed technique is carried out using casting simulation software to fill type and solidification
Simulation is the three-dimensional series connection pouring casting process figure of design after verifying is qualified；
S4: the design and cutting of body core: a simple sand base is drawn in 3 d modeling software and covers three-dimensional casting technique
Figure, using three-dimensional foundary methods drawing as cutter, sand base is inversely cut into the sand mold of an entirety, by sand base be cut into completely with
The casting mold of shape, reduces mold thickness to the greatest extent, so that integral sand core is met the placer iron ratio of technological specification, according to the process program in step S2
It carries out running gate system and carries out modularization cutting；The dicing process are as follows: the top surface first along identified running gate system cross gate
With cutting integral sand core respectively among the number of plies of casting, integral sand core is cut into several pieces big of module sand mold, it is described big
Module sand core is as initial body core；Then two pieces of body cores with casting are subjected to cutting along casting type chamber periphery, under cutting
Several small sand cores come are sub- core, and sub- core and body core contact surface should have certain taper, and be syncopated as oblique angle face as group
Core positioning surface stays type core gap between sub- core and body core；
S5: the design and cutting of sub- core: carrying out cutting for sub- core, is in sand billet along the difference cutting of identified die joint
The sub- core of the entirety of state, then the inner cavity sand core opened by the cutting of die joint institute should be divided again be merged into have and inner cavity core
It is connected in the external form of root fulcrum, the sub- core segment contact surface of two pieces be cut into should be made into concave-convex contact so that two parts combination is solid
It is fixed；
S6: the production of sub- core and body core: sub- core is directly produced with 3D printing, pattern draft system is then added for body core
Make corresponding wooden model to be produced with sand mixer；
S7: according to designed technique, mold, moulding, sand removal, application, drying work Mold Making and production: are made
Then sequence carries out a group core to primary and secondary sand core, and carries out core bag fastening, it is i.e. pourable to be put into covering dry sand in sandbox.
A kind of mixing primary and secondary cored-up mould technique of the invention uses bottom entering type running gate system in the step S3, according to
Running channel section area ratio is selected as unchoked running system；Riser uses general riser runner, and riser and sprue section ratio are greater than 2
To guarantee outlet effect；
A kind of mixing primary and secondary cored-up mould technique of the invention, in the step S4, the mold thickness of three-dimensional foundary methods drawing
It is maintained at 70mm or more.
A kind of mixing primary and secondary cored-up mould technique of the invention, two pieces of body cores in the step S4 with casting are along casting
Type chamber periphery cutting mold thickness 30mm.
A kind of mixing primary and secondary cored-up mould technique of the invention, in the step S4 group core positioning surface virgin core and body core it
Between type core gap be 1mm.
According to the above technical scheme, the beneficial effects of the present invention are: a kind of mixing primary and secondary cored-up mould technique is proposed, in original
Under the advantage for having 3D printing Modeling Technology, traditional sand mixer production technology is introduced, two kinds of formative technologies are combined, and then is reduced
The cost of raw material and equipment input cost, at the same by the sand mold part of taking casting out of with take running gate system out of, increase intensity
Mold thickness carries out letter and core is divided to combine, and combines for later Alternative and extends thinking；The quantity of single sandbox medium casting is increased,
Sandbox utilization rate and production efficiency are improved, while being reduced to artificial dependence, the 3D printing cost of raw material is reduced and is set
Standby depreciation, while the waste of molten iron is avoided, achieve the purpose that cost efficiency.
Detailed description of the invention
Fig. 1 is processed product schematic diagram in the embodiment of the present invention；
Fig. 2 is foundary methods drawing in the embodiment of the present invention；
Fig. 3 is in the embodiment of the present invention by the inverse integral sand core figure found out of three-dimensional foundary methods drawing；
Fig. 4 is the sand core schematic diagram that cutting finishes in the embodiment of the present invention；
Fig. 5 is neutron core schematic diagram of the embodiment of the present invention；
Fig. 6 is the core packet schematic diagram of completion group core in the embodiment of the present invention.
Specific embodiment
The present invention is further illustrated with attached drawing combined with specific embodiments below.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
If Fig. 1-6 is a kind of embodiment for mixing primary and secondary cored-up mould technique of the present invention, it is small to be adapted to numerous complicated
Casting method in part product rapid shaping, the specific steps are as follows: establish Moulds Based on Three-Dimensional Models, wanted according to the two-dimentional drawing of casting
It asks and establishes correct Moulds Based on Three-Dimensional Models with 3 d modeling software, if Fig. 1 middle pump body
2) process program is determined, because being smallclothes, lighter weight, thus in order to improve product yield, while reducing sand
Iron ratio, the series pouring process program of use have base plane towards decentralization the specific scheme is that choosing pump body cast 5 in sandbox
It sets, molten metal is from bottom injection type chamber；The gusset medium line for choosing pump housing pedestal and oil duct end face is die joint 1, according to sandbox
Bulk size and reserved mold thickness determine casting quantity, this scheme is set to 12；Two layers of 6 rows of casting point are total
5 rows arrange in matrix form.
3) three-dimensional foundary methods drawing is designed, since using the double-deck concatenated casting program, pressure head is larger, should ensure that and fills
Type is steady, reduces the scouring force to type chamber, therefore takes bottom entering type running gate system, is selected as open casting by running channel section area ratio
System；Riser uses general riser runner 6, and riser and 2 section ratio of sprue should be greater than 2 to guarantee outlet effect, remaining remove with
The relevant parameter of mold is outer without design, remaining related process parameters is designed according to conventional casting techniques design cycle, and
Draw out corresponding running gate system and riser in 3 d modeling software, the running gate system includes sprue 2, cross gate 3 and interior
Running channel 4 carries out designed technique using casting simulation software to fill type and solidification simulation, is the three of design after verifying is qualified
Series pouring foundary methods drawing is tieed up, as shown in Figure 2.4) design and cutting of body core.A letter is drawn in 3 d modeling software
Single sand base covers three-dimensional casting technique and sand base is inversely cut into an entirety using three-dimensional foundary methods drawing as cutter
Sand base is cut into complete profile-followed casting as shown in figure 3, the mold thickness of three-dimensional foundary methods drawing is maintained at 70mm or more by sand mold
Type reduces mold thickness to the greatest extent, and integral sand core is made to meet the placer iron ratio of technological specification.It is carried out by the running gate system that process program determines
Modularization cutting, specific dicing process are as follows: first along identified running gate system cross gate 3 among the number of plies of top surface and casting
Respectively cutting integral sand core, integral sand core is cut into four pieces big of module sand mold, this 4 pieces big module sand cores as initially
Body core 8；Then two pieces of body cores with casting are subjected to cutting, get off 12 pieces of cutting along casting type chamber periphery 30mm mold thickness
Small sand core is sub- core 7, and sub- core 7 should have certain taper with 8 contact surface of body core, and be syncopated as oblique angle face as primary and secondary group core
Inclined-plane 10 is positioned, the type core gap 1mm is stayed between sub- core 7 and body core 8 as shown in figure 4,5) the design and cutting of sub- core 7.To 12 pieces
Sub- core 7 carries out cutting, distinguishes cutting integral sand core along identified die joint, then the inner cavity for being opened by the cutting of die joint institute
Sand core should be divided again to be merged into and has and inner cavity core is connected in the external form of root fulcrum, the especially pump housing oil pipe of syphon shape
Sand core 9 should be syncopated as corresponding sand core fulcrum portion and guarantee its intensity, and sub- 7 part contact surface of core of two be cut into piece should be made into recessed
Convex contact is fixed so that two parts combine, as shown in figure 5,6) printing production.Sub- core 7 is directly produced with 3D printing, for
Body core 8 then adds the corresponding wooden model of pattern draft production and is produced with sand mixer, due to simple, the required cost of body core structure
It is also easier to control with fabrication cycle.
7) production division is transferred to be responsible for making the processes such as mold, moulding, sand removal, application, drying designed technique,
A group core finally is carried out to alphabetical sand core, and carries out core bag fastening with screw rod, it is i.e. pourable to be put into covering dry sand in sandbox.
By the technology mode in 3D printing casting technique with series pouring, combined with resin pug mixer moulding,
Compared with previous technique, 3D printing raw material usage is reduced, while reducing equipment investment and production cost；Increase sand
Casting quantity in case, from one case 4 increase to one case 12, improve sandbox utilization rate and production efficiency；Reduce artificial skill
It can require, be easy to implement batch production；For the product of the similar pump housing, such as rocker shaft bed, valve body diesel locomotive casting, only need
Sub- core replacement printing, body core can borrow, and have cured technique in this way, control convenient for quality, while reducing grinding for similar products
Cost is sent out, the beneficial effect of cost efficiency has been finally reached.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of mixing primary and secondary cored-up mould technique, which is characterized in that 3D printing moulding and mulling formative technology are combined, it will
3D printing is used close to the more part of product section structure feature, the less part of other structures feature is made using traditional mulling
Type process, so that the fabricated sand mold mould that body core and sub- core are used cooperatively is formed, specifically includes the following steps:
S1: correctly three-dimensional the foundation of product threedimensional model: is established according to the two-dimentional drawing requirement of casting 3 d modeling software
Product model；
S2: the determination of pouring technology scheme: series pouring scheme is used, and is arranged in multi-layer multi-row matrix form；
S3: the design of three-dimensional foundary methods drawing: according to the arrangement mode graphing in S2 step in 3 d modeling software,
And corresponding running gate system and riser are drawn out, designed technique is carried out using casting simulation software to fill type and solidification mould
It is quasi-, it is the three-dimensional series connection pouring casting process figure of design after verifying is qualified；
S4: the design and cutting of body core: drawing a simple sand base and cover three-dimensional foundary methods drawing in 3 d modeling software,
Using three-dimensional foundary methods drawing as cutter, sand base is inversely cut into the sand mold of an entirety, sand base is cut into complete profile-followed
Casting mold, reduce mold thickness to the greatest extent, integral sand core made to meet the placer iron ratio of technological specification, according to the process program in step S2 into
Row running gate system carries out modularization cutting；The dicing process are as follows: first along identified running gate system cross gate top surface and
Integral sand core, is cut into several pieces big of module sand mold, the big mould by difference cutting integral sand core among the number of plies of casting
Block sand core is as initial body core；Then two pieces of body cores with casting are subjected to cutting along casting type chamber periphery, cutting is got off
Several small sand cores be sub- core, sub- core and body core contact surface should have certain taper, and be syncopated as oblique angle face as a group core
Positioning surface stays type core gap between sub- core and body core；
S5: the design and cutting of sub- core: carrying out cutting for sub- core, is in sand billet state along the difference cutting of identified die joint
Whole sub- core, then the inner cavity sand core opened by the cutting of die joint institute should be divided again be merged into with and inner cavity core be connected
In the external form of root fulcrum, the sub- core segment contact surface of two pieces be cut into should be made into concave-convex contact and fix so that two parts combine；
S6: the production of sub- core and body core: directly producing sub- core with 3D printing, and pattern draft production phase is then added for body core
The wooden model answered is produced with sand mixer；
S7: Mold Making and production: according to designed technique, making mold, moulding, sand removal, application, baking process,
Then a group core is carried out to primary and secondary sand core, and carries out core bag fastening, it is i.e. pourable to be put into covering dry sand in sandbox.
2. a kind of mixing primary and secondary cored-up mould technique according to claim 1, it is characterised in that: used in the step S3
Bottom entering type running gate system is selected as unchoked running system according to running channel section area ratio；Riser uses general riser runner, riser
It is greater than 2 with sprue section ratio to guarantee outlet effect.
3. a kind of mixing primary and secondary cored-up mould technique according to claim 1, it is characterised in that: in the step S4, three
The mold thickness of dimension foundary methods drawing is maintained at 70mm or more.
4. a kind of mixing primary and secondary cored-up mould technique according to claim 1, it is characterised in that: had in the step S4
Two pieces of body cores of casting are along casting type chamber periphery cutting mold thickness 30mm.
5. a kind of mixing primary and secondary cored-up mould technique according to claim 1, it is characterised in that: organize core in the step S4
Type core gap is 1mm between positioning surface virgin core and body core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442909.6A CN107350429B (en) | 2017-06-13 | 2017-06-13 | A kind of mixing primary and secondary cored-up mould technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442909.6A CN107350429B (en) | 2017-06-13 | 2017-06-13 | A kind of mixing primary and secondary cored-up mould technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107350429A CN107350429A (en) | 2017-11-17 |
| CN107350429B true CN107350429B (en) | 2019-09-13 |
Family
ID=60273899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710442909.6A Active CN107350429B (en) | 2017-06-13 | 2017-06-13 | A kind of mixing primary and secondary cored-up mould technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107350429B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807286B (en) * | 2017-11-22 | 2021-03-30 | 于彦奇 | Metal mold casting method capable of realizing rapid cooling |
| CN109807285A (en) * | 2017-11-22 | 2019-05-28 | 于彦奇 | A kind of die cast method |
| CN108296454A (en) * | 2018-01-26 | 2018-07-20 | 共享智能铸造产业创新中心有限公司 | The parting and its parting scheme of impeller class product |
| CN108213342A (en) * | 2018-03-01 | 2018-06-29 | 四川共享铸造有限公司 | The casting technique of the complicated smallclothes of batch production |
| CN110653345B (en) | 2018-06-29 | 2024-05-31 | 丹佛斯（天津）有限公司 | Sand core assembly and method for forming sand core assembly through 3D printing |
| CN108940123B (en) * | 2018-07-21 | 2021-06-22 | 共享智能铸造产业创新中心有限公司 | Manufacturing method of particle forming module of straw granulator |
| CN109175307B (en) * | 2018-11-07 | 2021-06-08 | 西安西工大超晶科技发展有限责任公司 | 3D printing sand mold antigravity casting forming method |
| CN109465407A (en) * | 2018-11-28 | 2019-03-15 | 贵州安吉航空精密铸造有限责任公司 | A kind of assisted location method in sand casting process |
| CN110523922A (en) * | 2019-09-30 | 2019-12-03 | 共享智能铸造产业创新中心有限公司 | A kind of casting sand type of multiway valve casting |
| CN111299517A (en) * | 2020-04-01 | 2020-06-19 | 广西玉柴机器股份有限公司 | Air inlet sand core structure and core manufacturing method |
| CN114559056A (en) * | 2020-11-27 | 2022-05-31 | 成新科技股份有限公司 | 3D printing method for improving production efficiency of parts |
| CN113414351A (en) * | 2021-07-06 | 2021-09-21 | 安徽合力股份有限公司合肥铸锻厂 | 3D printing forming process of sand mold for tailstock-free counterweight production |
| CN114012041B (en) * | 2021-10-11 | 2024-05-14 | 甘肃酒钢集团西部重工股份有限公司 | Casting device and casting method for producing small impeller by 3DP sand mold technology |
| CN114453558B (en) * | 2022-01-20 | 2023-05-16 | 洛阳科品钛业股份有限公司 | Casting device for large conical titanium alloy shell castings |
| CN114951557B (en) * | 2022-06-02 | 2024-04-16 | 中国第一汽车股份有限公司 | Cylinder cover casting preparation device and method |
| CN114932199B (en) * | 2022-06-22 | 2023-07-14 | 烟台冰轮智能机械科技有限公司 | Casting process of centrifugal double-suction pump |
| CN115319021A (en) * | 2022-06-27 | 2022-11-11 | 日月重工股份有限公司 | Method for producing large steel casting through 3D printing |
| CN115351227B (en) * | 2022-07-25 | 2023-08-01 | 日月重工股份有限公司 | Casting mold for manufacturing high-silicon molybdenum marine wet exhaust pipe and forming method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150000855A1 (en) * | 2013-07-01 | 2015-01-01 | Case Western Reserve University | Holder block system and methods for metal casting |
| CN104707939B (en) * | 2015-04-08 | 2016-08-24 | 广西玉柴机器股份有限公司 | The casting sand core of diesel engine cylinder cover |
| CN105127375A (en) * | 2015-10-10 | 2015-12-09 | 四川南车共享铸造有限公司 | Method for machining sand core of intermediate and 3D-printed sand core of intermediate |
| CN105834374B (en) * | 2016-02-02 | 2018-01-12 | 宁夏共享模具有限公司 | A kind of 3D printing containerless casting method of internal combustion engine frame |
| CN106345973A (en) * | 2016-08-25 | 2017-01-25 | 四川南车共享铸造有限公司 | Locomotive oil inlet casing sand core and manufacturing method thereof |
| CN106141096A (en) * | 2016-08-25 | 2016-11-23 | 四川南车共享铸造有限公司 | A kind of casting method of the railway locomotive pump housing |
-
2017
- 2017-06-13 CN CN201710442909.6A patent/CN107350429B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107350429A (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107350429B (en) | A kind of mixing primary and secondary cored-up mould technique | |
| CN107745087B (en) | Sand core and its cold-box core shooting universal mold and manufacturing method | |
| CN106141096A (en) | A kind of casting method of the railway locomotive pump housing | |
| CN106475518A (en) | For casting sand mold and its manufacture method of rotary structure foundry goods | |
| CN101992272A (en) | Self-adaptive casting mould manufacture method for casting | |
| CN108057873A (en) | The process of low pressure casting thin-walled aluminium alloy castings | |
| CN110102712A (en) | The anti-shrinkage porosite casting method of cylinder head casting | |
| CN109175262A (en) | A kind of production method of combination type blade wheel sand core | |
| CN106392013A (en) | Riser and pouring system for producing gray pig iron hub castings on DISA line and design method of riser and pouring system | |
| CN103567392A (en) | Manufacturing method for diesel engine cylinder cover | |
| CN103100669A (en) | Valve body combined casting process for sluice valve with flange casting bolt hole | |
| CN106345973A (en) | Locomotive oil inlet casing sand core and manufacturing method thereof | |
| CN201295736Y (en) | Pulling block structure of turbo-housing channel box core | |
| CN109604529A (en) | Casting technique fast verification method based on sand core 3D printing technique | |
| CN108213342A (en) | The casting technique of the complicated smallclothes of batch production | |
| CN102784890B (en) | Method for casting lead screw sleeve type casts | |
| CN108453220A (en) | The casting method of outer shell casting is pressed in a kind of steam turbine ultra supercritical | |
| CN102672113A (en) | Method for pouring copper alloy neck mould of glass mould by using single resin sand box | |
| CN108127080A (en) | A kind of composite casting core aluminium alloy Rapid casting process method | |
| CN206229978U (en) | The running and feeding system of gray cast iron Hub Castings casting is produced on DISA lines | |
| CN212191113U (en) | Two-layer sand mould structure of metal part mould | |
| CN110586865B (en) | Universal casting method for small and medium-sized steel castings | |
| CN201333499Y (en) | Diesel engine body casting mold | |
| CN210475410U (en) | Hollow structure wax mould for producing thick and large parts | |
| CN208976754U (en) | Template for flywheel sand casting vertical casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |