CN114749625A - 3D printing sand mold and molding method for bearing shell of supercharger - Google Patents
3D printing sand mold and molding method for bearing shell of supercharger Download PDFInfo
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- CN114749625A CN114749625A CN202210427459.4A CN202210427459A CN114749625A CN 114749625 A CN114749625 A CN 114749625A CN 202210427459 A CN202210427459 A CN 202210427459A CN 114749625 A CN114749625 A CN 114749625A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
- B22D15/02—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects
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- 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
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- 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
- B33Y80/00—Products made by additive manufacturing
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to the technical field of sand casting, in particular to a 3D printing sand mold and a molding method for a bearing shell of a supercharger; including the lower box sand mould, the middle box sand mould, the cope flask sand mould, the core print under the middle box sand mould, the core print on the middle box sand mould, two lower box sand mould lugs, two middle box sand mould lugs, two cope flask sand mould lugs and three middle box sand mould technology muscle, the middle box sand mould sets up in the top of lower box sand mould, the cope flask sand mould sets up in the top of middle box sand mould, the core print under the middle box sand mould sets up between lower box sand mould and middle box sand mould, the core print sets up between middle box sand mould and cope flask sand mould, the both sides of lower box sand mould all are provided with lower box sand mould lug, the both sides of cope flask sand mould all are provided with the cope flask sand mould lug, realize the quickness that improves the production of booster bearing shell through above-mentioned structure, thereby improve booster bearing shell production efficiency.
Description
Technical Field
The invention relates to the technical field of sand casting, in particular to a 3D printing sand mold and a molding method for a bearing shell of a supercharger.
Background
At present, in the production of a bearing shell of a supercharger, the manual molding (core) has poor surface quality, large size error and more fash, and the production blank is polished, so that time and labor are wasted.
The corresponding sand mold can be obtained by manufacturing a wood mold or a metal mold, pouring raw materials in the wood mold or the metal mold, and waiting for the self-hardening molding of the raw materials.
However, in the process of producing the supercharger bearing shell by using a wood mold or a metal mold, products of various types and specifications correspond to one set of mold, and the structure of the mold needs to be considered: the method has the advantages of die drawing inclination, loose piece, blanking, blank making, processing, assembling and polishing, long period and poor production rapidity of the bearing shell of the supercharger, thereby influencing the production efficiency of the bearing shell of the supercharger.
Disclosure of Invention
The invention aims to provide a 3D printing sand mold and a molding method for a bearing shell of a supercharger, and aims to solve the technical problem that the production efficiency of the bearing shell of the supercharger is influenced due to poor production rapidity of the bearing shell of the supercharger in the prior art.
In order to achieve the purpose, the 3D printing sand mold of the bearing shell of the supercharger adopted by the invention comprises a lower sand mold, a middle sand mold, an upper sand mold, a middle sand mold lower core print, a middle sand mold upper core print, two lower sand mold lifting lugs, two middle sand mold lifting lugs, two upper sand mold lifting lugs and three middle sand mold process ribs, wherein the middle sand mold is arranged above the lower sand mold, the upper sand mold is arranged above the middle sand mold, the middle sand mold lower core print is arranged between the lower sand mold and the middle sand mold, the middle sand mold upper core print is arranged between the middle sand mold and the upper sand mold, the lower sand mold lifting lugs are arranged on two sides of the lower sand mold, the middle sand mold lifting lugs are arranged on two sides of the middle sand mold, the upper sand mold lifting lugs are arranged on two sides of the upper sand mold, the middle box sand mold upper core head is internally provided with a plurality of middle box sand mold process ribs, the lower box sand mold is provided with a lower box sand mold sand reduction hole, a lower box inner ring iron cooling groove and a lower box outer ring iron cooling groove, the lower box sand mold sand reduction hole is positioned at the bottom of the lower box sand mold, the lower box inner ring iron cooling groove and the lower box outer ring iron cooling groove are respectively positioned at the top of the lower box sand mold, the middle box sand mold is provided with six ingates, a cross gate, a sprue and a casting cavity, the sprue and each ingate are respectively communicated with the cross gate, the casting cavity is positioned below the upper box sand mold, the upper box sand mold is provided with a top riser, and the top riser is communicated with the casting cavity.
The number of the lower box inner ring iron cooling grooves is eight, and the distance between every two adjacent lower box inner ring iron cooling grooves is 20 mm.
The number of the lower box outer ring cold iron grooves is twelve, and the distance between every two adjacent lower box outer ring cold iron grooves is 20 mm.
The upper box sand mold is further provided with an upper middle box spigot between the upper box sand mold and the middle box sand mold.
The middle box sand mold is further provided with a middle and lower box seam allowance between the middle box sand mold and the lower box sand mold.
And the top of the upper sand box mold is provided with an inner sand reducing hole of the upper sand box mold and an outer sand reducing hole of the upper sand box mold.
The invention also provides a molding method for the 3D printing sand mold of the bearing shell of the supercharger, which comprises the following steps:
designing a three-dimensional model;
respectively adding 70/140-mesh ceramsite sand into the sand mixing tank, and adding 3D printing furan resin into the liquid feed box;
setting the addition amount of furan resin to be 1.5%, the addition amount of curing agent to be 0.6% and the thickness of the printing layer to be 0.3mm in the control panel;
adding a curing agent into a sand mixing tank, uniformly stirring, paving a layer of sand from left to right in a molding area through a sand paving machine, and then spraying resin on a sand surface by a printing head according to an instruction;
Then the lifting mechanism descends by 0.3mm, the sand spreader spreads a layer of sand again from right to left in the molding area, and then the printing head ejects the resin onto the sand surface according to the instruction, so that the resin is overlapped for multiple times until the instruction is finished;
and (3) lifting the printing box out, placing the printing box in the storage area, standing for 30 minutes, lifting the printing box out of the sand mold from the cleaning area after the sand mold is completely solidified, and completing the molding.
According to the 3D printing sand mold and the molding method of the supercharger bearing shell, the lower box sand mold, the middle box sand mold and the upper box sand mold are divided into three box molding in the production process, the box assembling is convenient and rapid, the original scattered parts which are assembled are integrally designed, the product function appeal and the service performance of castings are improved, the new product development period is shortened, the research and development cost is low, the production rapidness of the supercharger bearing shell is improved, and the production efficiency of the supercharger bearing shell is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a 3D printed sand mold of a supercharger bearing housing of the present invention.
Fig. 2 is a flow chart of the steps of the molding method of the 3D printing sand mold of the bearing housing of the supercharger according to the present invention.
Fig. 3 is a schematic structural view of a tool used in the molding method of the 3D printing sand mold of the bearing housing of the supercharger according to the present invention.
1-lower box sand mold sand reducing hole, 2-lower box sand mold, 3-lower box inner ring iron cooling groove, 4-lower box outer ring iron cooling groove, 5-lower box sand mold lifting lug, 6-middle box sand mold process rib, 7-middle box sand mold, 8-middle box sand mold lower core print, 9-middle box sand mold upper core print, 10-inner sprue, 11-middle and lower box stop, 12-cross runner, 13-middle box sand mold lifting lug, 14-straight runner, 15-upper box sand mold lifting lug, 16-upper box sand mold, 17-casting cavity, 18-top riser, 19-upper box sand mold inner sand reducing hole, 20-upper middle box stop, 21-upper box sand mold outer sand reducing hole, 22-sand mixing tank, 23-liquid box, 24-sand paving device, 25-lifting mechanism, 26-printing head, 27-moulding zone, 28-printing box.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the invention provides a 3D printing sand mold of a bearing shell of a supercharger, which comprises a lower sand box 2, a middle sand box 7, an upper sand box 16, a lower core print 8 of the middle sand box, an upper core print 9 of the middle sand box, two lower sand box lifting lugs 5, two middle sand box lifting lugs 13, two upper sand box lifting lugs 15 and three middle sand box technological ribs 6, wherein the middle sand box 7 is arranged above the lower sand box 2, the upper sand box 16 is arranged above the middle sand box 7, the lower core print 8 of the middle sand box is arranged between the lower sand box 2 and the middle sand box 7, the upper core print 9 of the middle sand box is arranged between the middle sand box 7 and the upper sand box 16, the lower sand box lifting lugs 5 are arranged on two sides of the lower sand box 2, the middle box lifting lugs 13 are arranged on two sides of the middle sand box 7, the upper box sand mould lifting lugs 15 are arranged on two sides of the upper box sand mould 16, a plurality of middle box sand mould process ribs 6 are arranged in the middle box sand mould upper core print 9, the lower box sand mold 2 is provided with a lower box sand mold sand reducing hole 1, a lower box inner ring iron cooling groove 3 and a lower box outer ring iron cooling groove 4, the sand reducing holes 1 of the lower box sand mold are positioned at the bottom of the lower box sand mold 2, the cold iron groove 3 of the inner ring of the lower box and the cold iron groove 4 of the outer ring of the lower box are respectively positioned at the top of the lower box sand mold 2, the pouring box sand mold 7 is provided with six ingates 10, a horizontal pouring channel 12, a straight pouring channel 14 and a casting cavity 17, the sprue 14 and each of the ingates 10 are respectively communicated with the runner 12, the casting cavity 17 is located below the upper sand box 16, the upper sand box 16 is provided with a top riser 18, and the top riser 18 is communicated with the casting cavity 17.
In the embodiment, the two lifting lugs 5 for the lower sand box mould 2 are convenient to lift, the two lifting lugs 13 for the middle sand box mould 7 are convenient to lift, the two lifting lugs 15 for the upper sand box mould 16 are convenient to lift, the three-box molding process is divided into three-box molding of the lower sand box mould 2, the middle sand box mould 7 and the upper sand box mould 16 in the production process, a plurality of process ribs 6 for the middle sand box mould are arranged in the upper core print 9 of the middle sand box mould to strengthen the strength of the middle sand box mould 7, the process ribs 6 for the middle sand box mould are required to be removed after the three boxes are combined, the lower core print 8 of the middle sand box mould and the upper core print 9 of the middle sand box mould form positioning support fit, the lower core print 8 of the middle sand box mould and the upper core print 9 of the middle sand box mould form positioning compression fit, the middle sand box 7 is provided with six uniform distribution channels of the inner gates 10, the lower box sand mold 2, the middle box sand mold 7 and the upper box sand mold 16 are 3D printing sand molds, the box assembling is convenient and fast, the original integrated design is carried out on scattered parts through assembling, the functional appeal of a product and the service performance of a casting are improved, the new product development period is shortened, the research and development cost is low, the production rapidness of the bearing shell of the supercharger is improved, and the production efficiency of the bearing shell of the supercharger is improved.
Furthermore, the number of the lower box inner ring iron cooling slots 3 is eight, and the distance between every two adjacent lower box inner ring iron cooling slots 3 is 20 mm.
In the embodiment, the chill groove 3 of the inner ring of the lower box is used for placing chills to enhance the local cooling speed of the casting.
Furthermore, the number of the lower box outer ring cold iron grooves 4 is twelve, and the distance between every two adjacent lower box outer ring cold iron grooves 4 is 20 mm.
In the embodiment, the chill tank 4 is used for placing chills and enhancing the local cooling speed of the casting.
Further, the cope flask sand mold 16 further has an upper middle flask spigot 20 positioned between the cope flask sand mold 16 and the middle flask sand mold 4.
In this embodiment, the upper middle box seam allowance 20 forms a clearance fit for one circle, and has the effects of positioning and preventing fire from running out.
Further, the middle box sand mold 7 is also provided with a middle and lower box seam allowance 11 positioned between the middle box sand mold 7 and the lower box sand mold 2.
In the present embodiment, the middle and lower box seam allowances 11 are formed by one circle to form clearance fit, so that the effects of positioning and preventing fire from running out are achieved.
Further, the top of the cope mold 16 has an inner cope mold sand reduction hole 19 and an outer cope mold sand reduction hole 21.
In this embodiment, the inner sand-reducing holes 19 and the outer sand-reducing holes 21 of the upper sand box are both located at the top of the upper sand box 16, the inner sand-reducing holes 19 and the outer sand-reducing holes 21 of the upper sand box play roles of reducing weight and saving cost, and the inner sand-reducing holes 19 and the outer sand-reducing holes 21 of the upper sand box need to ensure that the thickness of the sand layer is 30mm and a plurality of reinforcing ribs are arranged, so as to improve the strength of the sand mold.
Referring to fig. 2 and 3, the invention further provides a molding method of a 3D printing sand mold using the bearing housing of a supercharger, which includes the following steps:
s1: designing a three-dimensional model according to a bearing shell of a supercharger, respectively converting the three-dimensional model format into an STL3D printing format for the lower sand box 2, the middle sand box 7 and the upper sand box 16, and determining the printer condition according to the size of the three-dimensional model;
s2: respectively adding 70/140-mesh ceramsite sand into the sand mixing tank 22, and adding 3D printing furan resin into the liquid material box 23;
s3: setting the addition amount of furan resin to be 1.5%, the addition amount of curing agent to be 0.6% and the thickness of the printing layer to be 0.3mm in the control panel;
s4: adding a curing agent into the sand mixing tank 22, uniformly stirring, paving a layer of sand from left to right in the molding area 27 through a sand paving machine 24, and then spraying resin on the sand surface by a printing head 26 according to instructions;
S5: then the lifting mechanism 25 is lowered by 0.3mm, the sand spreader 24 spreads a layer of sand again from right to left in the molding zone 27, and then the printing head 26 ejects the resin ink on the sand surface again according to the instruction, so as to superpose for a plurality of times until the instruction is finished;
s6: and (3) lifting the printing box 28 out, placing the printing box in the storage area, standing for 30 minutes, lifting the printing box 28 to the cleaning area to lift out the sand mold after the sand mold is completely cured, and cleaning the sand without curing to finish the modeling.
Wherein, firstly, a three-dimensional model is designed according to a bearing shell of a supercharger, the three-dimensional model is respectively used as the lower box sand mold 2, the middle box sand mold 7 and the upper box sand mold 16, the three-dimensional model format is converted into an STL3D printing format, the printer condition is determined according to the size of the three-dimensional model, then, 70/140 meshes of ceramsite sand are respectively added into the sand mixing tank 22, 3D printing furan resin is added into the liquid tank 23, then, the adding amount of the furan resin is set to be 1.5 percent, the adding amount of the curing agent is set to be 0.6 percent, the thickness of the printing layer is set to be 0.3mm, then, the curing agent is added into the sand mixing tank 22 to be uniformly stirred, a layer of sand is paved from left to right in the molding area 27 through the sand paving device 24, then, the printing head 26 sprays the resin on the sand surface according to a command, then, the lifting mechanism 25 descends by 0.3mm, and the sand paving device 24 paves a layer of sand from right to left in the molding area 27, and then the printing head 26 sprays resin on the sand surface according to the instruction, the resin is overlapped for multiple times until the instruction is finished, finally the printing box 28 is lifted out and placed in the storage area to stand for 30 minutes, the printing box 28 is lifted out of the sand mold from the cleaning area after the sand mold is completely cured, and the molding is finished after the uncured sand is cleaned.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A3D printing sand mold of a bearing shell of a supercharger is characterized in that,
the middle box sand mold is arranged above the lower box sand mold, the upper box sand mold is arranged above the middle box sand mold, the middle box sand mold is arranged above the middle box sand mold, the lower box sand mold is arranged between the lower box sand mold and the middle box sand mold, the upper box sand mold is arranged between the middle box sand mold and the upper box sand mold, the lower box sand mold lifting lugs are arranged on two sides of the middle box sand mold, the middle box sand mold is arranged on two sides of the middle box sand mold, the upper box sand mold lifting lugs are arranged on two sides of the upper box sand mold, a plurality of middle box sand mold process ribs are arranged in the upper box sand mold, and the lower box sand mold is provided with a lower box sand reduction hole, The middle box sand mold is provided with six ingates, a cross gate, a sprue and a casting cavity, wherein the sprue and each ingate are respectively communicated with the cross gate, the casting cavity is positioned below the upper box sand mold, the upper box sand mold is provided with a top riser, and the top riser is communicated with the casting cavity.
2. 3D printed sand mold of a supercharger bearing housing according to claim 1,
the number of the lower box inner ring iron cooling grooves is eight, and the distance between every two adjacent lower box inner ring iron cooling grooves is 20 mm.
3. 3D printed sand mold of a supercharger bearing housing according to claim 1,
the number of the lower box outer ring cold iron grooves is twelve, and the distance between every two adjacent lower box outer ring cold iron grooves is 20 mm.
4. 3D printed sand mold of a supercharger bearing housing according to claim 1,
the upper box sand mold is further provided with an upper middle box seam allowance between the upper box sand mold and the middle box sand mold.
5. 3D printed sand mold of a supercharger bearing housing according to claim 1,
the middle box sand mold is also provided with a middle and lower box seam allowance positioned between the middle box sand mold and the lower box sand mold.
6. 3D printed sand mould of a supercharger bearing housing according to claim 1,
and the top of the upper box sand mold is provided with an inner sand reduction hole of the upper box sand mold and an outer sand reduction hole of the upper box sand mold.
7. A molding method of a sand mold by 3D printing of a bearing housing of a supercharger according to claim 1, comprising the steps of:
Designing a three-dimensional model;
respectively adding 70/140-mesh ceramsite sand into the sand mixing tank, and adding 3D printing furan resin into the liquid feed box;
setting the addition amount of furan resin to be 1.5%, the addition amount of curing agent to be 0.6% and the thickness of the printing layer to be 0.3mm in the control panel;
adding a curing agent into a sand mixing tank, uniformly stirring, paving a layer of sand from left to right in a molding area through a sand paving machine, and then spraying resin on a sand surface by a printing head according to an instruction;
then the lifting mechanism descends by 0.3mm, the sand spreader spreads a layer of sand again from the right to the left in the molding area, and then the printing head ejects resin on the sand surface again according to instructions, so that the sand layer is overlapped for multiple times until the instructions are finished;
and (4) lifting the printing box out, placing the printing box in the storage area to stand for 30 minutes, lifting the printing box to the cleaning area to lift out the sand mold after the sand mold is completely solidified, and completing the molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210427459.4A CN114749625A (en) | 2022-04-21 | 2022-04-21 | 3D printing sand mold and molding method for bearing shell of supercharger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210427459.4A CN114749625A (en) | 2022-04-21 | 2022-04-21 | 3D printing sand mold and molding method for bearing shell of supercharger |
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| CN114749625A true CN114749625A (en) | 2022-07-15 |
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| CN202210427459.4A Pending CN114749625A (en) | 2022-04-21 | 2022-04-21 | 3D printing sand mold and molding method for bearing shell of supercharger |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003275846A (en) * | 2002-03-20 | 2003-09-30 | Nakakin:Kk | Sand mold for casting |
| CN108339937A (en) * | 2018-02-07 | 2018-07-31 | 北京机科国创轻量化科学研究院有限公司 | A kind of high-performance and high accuracy sand mold（Core）3D printing manufacturing process |
| CN111451455A (en) * | 2020-05-09 | 2020-07-28 | 大连华锐重工铸业有限公司 | Box stacking casting method for nodular cast iron wind power brake disc |
| JP2020183120A (en) * | 2019-04-26 | 2020-11-12 | 株式会社木村鋳造所 | Lamination molding method for sand mold |
| CN113134570A (en) * | 2021-03-30 | 2021-07-20 | 共享铸钢有限公司 | Modeling method for large curved surface structure casting |
| CN114210944A (en) * | 2021-11-29 | 2022-03-22 | 四川维珍高新材料有限公司 | Composite 3D printing preparation method of casting sand mold with chilling block and casting sand mold |
| CN114289685A (en) * | 2022-01-12 | 2022-04-08 | 南京航空航天大学 | Multi-material composite sand mold forming method and device |
-
2022
- 2022-04-21 CN CN202210427459.4A patent/CN114749625A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003275846A (en) * | 2002-03-20 | 2003-09-30 | Nakakin:Kk | Sand mold for casting |
| CN108339937A (en) * | 2018-02-07 | 2018-07-31 | 北京机科国创轻量化科学研究院有限公司 | A kind of high-performance and high accuracy sand mold（Core）3D printing manufacturing process |
| JP2020183120A (en) * | 2019-04-26 | 2020-11-12 | 株式会社木村鋳造所 | Lamination molding method for sand mold |
| CN111451455A (en) * | 2020-05-09 | 2020-07-28 | 大连华锐重工铸业有限公司 | Box stacking casting method for nodular cast iron wind power brake disc |
| CN113134570A (en) * | 2021-03-30 | 2021-07-20 | 共享铸钢有限公司 | Modeling method for large curved surface structure casting |
| CN114210944A (en) * | 2021-11-29 | 2022-03-22 | 四川维珍高新材料有限公司 | Composite 3D printing preparation method of casting sand mold with chilling block and casting sand mold |
| CN114289685A (en) * | 2022-01-12 | 2022-04-08 | 南京航空航天大学 | Multi-material composite sand mold forming method and device |
Non-Patent Citations (1)
| Title |
|---|
| 郭鸿岐: "《铸造手册》", 辽宁人民出版社, pages: 367 * |
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