CN106734918B - One kind is for casting superhigh temperature metalwork casting mould production technology - Google Patents
One kind is for casting superhigh temperature metalwork casting mould production technology Download PDFInfo
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- CN106734918B CN106734918B CN201611137620.5A CN201611137620A CN106734918B CN 106734918 B CN106734918 B CN 106734918B CN 201611137620 A CN201611137620 A CN 201611137620A CN 106734918 B CN106734918 B CN 106734918B
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- casting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/061—Materials which make up the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
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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)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses one kind for casting superhigh temperature metalwork casting mould production technology, it is characterised in that mainly includes the following steps that：Design mold manufacture auxiliary tool, manufacture product model, applies high-temperaure coating, drying, molding, die sinking, drying, forms by a firing, the detection of Inner Defect Testing and appearance and size.The precision of casting is improved so as to produce high-precision casting mould by using this technique, complicated metal works can be cast out, and processing efficiency greatly improves；Mold can repeatedly use, and can be processed to high temperature metallic material, reduce casting cost while improving precision, improve economic benefit.
Description
Technical field
The present invention relates to casting field and mold manufacture fields, in particular to one kind for casting the casting of superhigh temperature metalwork
Mold production technology.
Background technology
Casting is a kind of ancient manufacturing method, before China can trace back to 6000.With the development of industrial technology,
Therefore the quality that the quality of casting heavy castings directly affects product is cast in machinery manufacturing industry and occupies an important position.Casting
It makes the development of technology also rapidly, especially many new casting methods occurs, such as with 20 th Centuries at the end of the 19th century
Low pressure casting, ceramic casting, continuously casting etc. improve and practical in the second half in 20th century.Casting is will to pass through melting
Metal liquid be poured into casting mold, through cooled and solidified obtain needed for shape and performance part manufacturing process.Casting is normal
Manufacturing method, manufacturing cost is low, and technological flexibility is big, complicated shape and large-scale casting can be obtained, in machine-building
In occupy prodigious proportion, if lathe accounts for 60~80%, automobile accounts for 25%, and tractor accounts for 50~60%.Traditional casting pattern
Time processing can only be carried out, it is not only with high costs when carrying out high-volume processing, and the unstable quality of each part, fluctuation
It is with error very big and cannot repeatedly be processed.
In this way, that there are processing efficiencies is low, processing cost is high, product quality can not Efficient Support, and cannot be to resistance to height
The problems such as adiabator carries out casting processing, and size fluctuation is big.
Invention content
The purpose of the present invention is to provide one kind for casting superhigh temperature metalwork casting mould production technology, by using
This technique improves the precision of casting so as to produce high-precision casting mould, can cast out complicated metal work
Part, and processing efficiency greatly improves；Mold can repeatedly use, and can be processed to high temperature metallic material, improve precision
While reduce casting cost and do not improve economic benefit.
The present invention is achieved through the following technical solutions：
One kind is for casting superhigh temperature metalwork casting mould production technology, it is characterised in that includes the following steps：
(1) mold is designed：According to product drawing design mold, and draw mold structural drawings and processing in need
Fixture；
(2) auxiliary tool is manufactured：According to design, the fixture needed for mold is produced；
(3) product model is manufactured：Product model is processed using aluminium, and reserves good demoulding line；
(4) high-temperaure coating is applied：Layer of plastic film is coated on aluminum model first, is then coated on aluminum model
The high temperature resistant clay of 1mm thickness；
(5) primary drying：Aluminum mould is put into air-dry machine and is dried, drying time is 15-25min；
(6) it molds：Using equipment and step (2) fixture will be coated with the aluminum model of high temperature resistant clay, upper mold and under
Mould accurate positioning, it is quiet after compacting between the aluminum model for being coated with high temperature resistant clay is put into the upper die and lower die for filling up clay
It sets 1 hour；
(7) it molds：First to aluminum model electrified regulation, when aluminum model temperature reaches the temperature of plastic film thawing
Afterwards, upper die and lower die are separated；
(8) redrying：Aluminum mould is put into air-dry machine and is dried, drying time is 10-15 hours；
(9) it forms by a firing：Dried pottery embryo is put into baking furnace, is fired, it is 2355 to form by a firing temperature
℃—2420℃；
(10) Inner Defect Testing：After forming by a firing using ultrasound measuring instrument detection it is internal whether defective and crack；
(11) appearance and size detects：The geometric dimension that product is measured using laser range finder, is examined using optical imaging apparatus
Survey appearance.
In technique (1) designs mold, when being designed to product, the boundary property of processing, size essence are not only considered
Degree also needs expansion and contraction and the material issuable deformation under own wt for considering rapidoprint, and good fabrication design is not only
The quality of product can be improved, moreover it is possible to reduce processing cost, improve processing efficiency.Mold is in the manufacturing process of early period, and model is also
It is very soft, it moves cumbersome, is fixed using fixture in whole process, moves and process and is all very convenient；This
Sample not only can guarantee machining accuracy and processing efficiency, moreover it is possible to improve the quality of mold.
In technique (3) manufactures product model, model is made using aluminium, not only good, the high precision machining of rigidity, quality are soft
It is easy to process, improve machining accuracy while reducing processing cost.
In technique (4) applies high-temperaure coating, draft coating is done using plastics, is not only not easy when upper clay,
And thickness is uniform, draft fast and easy.
In technique (6) molding, upper/lower die can quickly be produced by such side hair, upper/lower die is made pottery with high temperature resistant
Layer is at a fully engaged.
In technique (7) die sinking, after electrified regulation, plastic foil melts completely, the knot between metal pattern and ceramic mold
Resultant force greatly reduces, and can rapidly extract metal pattern from ceramic mold, will not be had an impact to the dimensional accuracy of mold.
In technique (8) is dry, wind speed and temperature are critically important, and temperature is excessively high or wind speed is very big, may all cause mold
Cracking either local contraction is excessive that mold is caused to scrap or occur the excessive situation of mismachining tolerance；If wind speed it is too small or
Person's temperature is too low to cause process time long, and efficiency substantially reduces；And mold under the action of own wt and may generate
Deformation causes geometric dimension error to become larger, and reduces the quality of mold.
In technique (9) forms by a firing, the assurance of time and temperature is critically important, and temperature is too low, internal component chemical reaction
Not exclusively, cause the structural strength of product low, the excessively high geometrical variations that can lead to product of temperature are violent.
In technique (10) Inner Defect Testing, by ultrasound detection enough to detect that naked eyes can not existing for mould inside
The crack seen prevents defect ware from entering lower step manufacturing procedure, wastes processing cost.
Further, the invention discloses a kind of preferred sides for casting superhigh temperature metalwork casting mould production technology
Method, i.e.,：In technique (2) the manufacture auxiliary tool, the machining accuracy of auxiliary tool is higher than one grade of Product Precision.
Further, the technique (4) applies in high-temperaure coating, and the ingredient of plastic film is that the dissolving of organic solvent butane is poly-
Ethylene is made, and the formula rate of butane and polyethylene is 13:5.
Further, during the technique (5) is dry, wind speed is 0.8-1.1m/s when dry, and air themperature is 35 DEG C.
Further, during the technique (8) is dry, wind speed is 0.8-1.1m/s when dry, and air themperature is 35 DEG C.
Further, during the technique (9) forms by a firing, firing temperature is 2380 DEG C.
Compared with prior art, the present invention have the advantage that for：
(1) by using this technique, so as to produce high-precision casting mould, mold may be reused, can be right
High temperature metallic material is processed, and improves the precision of casting.
(2) by using this technique, complicated metal works can be cast out, and processing efficiency greatly improves；It carries
It is high-precision while reducing casting cost, improve economic benefit.
Specific implementation mode
The present invention is described in further detail with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1：
One kind is for casting superhigh temperature metalwork casting mould production technology, it is characterised in that includes the following steps：
(1) mold is designed：According to product drawing design mold, and draw mold structural drawings and processing in need
Fixture；
(2) auxiliary tool is manufactured：According to design, the fixture needed for mold is produced；
(3) product model is manufactured：Product model is processed using aluminium, and reserves good demoulding line；
(4) high-temperaure coating is applied：Layer of plastic film is coated on aluminum model first, is then coated on aluminum model
The high temperature resistant clay of 1mm thickness；
(5) primary drying：Aluminum mould is put into air-dry machine and is dried, drying time is 15-25min；
(6) it molds：Using equipment and step (2) fixture will be coated with the aluminum model of high temperature resistant clay, upper mold and under
Mould accurate positioning, it is quiet after compacting between the aluminum model for being coated with high temperature resistant clay is put into the upper die and lower die for filling up clay
It sets 1 hour；
(7) it molds：First to aluminum model electrified regulation, when aluminum model temperature reaches the temperature of plastic film thawing
Afterwards, upper die and lower die are separated；
(8) redrying：Aluminum mould is put into air-dry machine and is dried, drying time is 10-15 hours；
(9) it forms by a firing：Dried pottery embryo is put into baking furnace, is fired, it is 2355 to form by a firing temperature
℃—2420℃；
(10) Inner Defect Testing：After forming by a firing using ultrasound measuring instrument detection it is internal whether defective and crack；
(11) appearance and size detects：The geometric dimension that product is measured using laser range finder, is examined using optical imaging apparatus
Survey appearance.
In technique (1) designs mold, when being designed to product, the boundary property of processing, size essence are not only considered
Degree also needs expansion and contraction and the material issuable deformation under own wt for considering rapidoprint, and good fabrication design is not only
The quality of product can be improved, moreover it is possible to reduce processing cost, improve processing efficiency.Mold is in the manufacturing process of early period, and model is also
It is very soft, it moves cumbersome, is fixed using fixture in whole process, moves and process and is all very convenient；This
Sample not only can guarantee machining accuracy and processing efficiency, moreover it is possible to improve the quality of mold.
In technique (3) manufactures product model, model is made using aluminium, not only good, the high precision machining of rigidity, quality are soft
It is easy to process, improve machining accuracy while reducing processing cost.
In technique (4) applies high-temperaure coating, draft coating is done using plastics, is not only not easy when upper clay,
And thickness is uniform, draft fast and easy.
In technique (6) molding, upper/lower die can quickly be produced by such side hair, upper/lower die is made pottery with high temperature resistant
Layer is at a fully engaged.
In technique (7) die sinking, after electrified regulation, plastic foil melts completely, the knot between metal pattern and ceramic mold
Resultant force greatly reduces, and can rapidly extract metal pattern from ceramic mold, will not be had an impact to the dimensional accuracy of mold.
In technique (8) is dry, wind speed and temperature are critically important, and temperature is excessively high or wind speed is very big, may all cause mold
Cracking either local contraction is excessive that mold is caused to scrap or occur the excessive situation of mismachining tolerance；If wind speed it is too small or
Person's temperature is too low to cause process time long, and efficiency substantially reduces；And mold under the action of own wt and may generate
Deformation causes geometric dimension error to become larger, and reduces the quality of mold.
In technique (9) forms by a firing, the assurance of time and temperature is critically important, and temperature is too low, internal component chemical reaction
Not exclusively, cause the structural strength of product low, the excessively high geometrical variations that can lead to product of temperature are violent.
In technique (10) Inner Defect Testing, by ultrasound detection enough to detect that naked eyes can not existing for mould inside
The crack seen prevents defect ware from entering lower step manufacturing procedure, wastes processing cost.
Embodiment 2：
The present embodiment discloses a kind of for casting the production of superhigh temperature metalwork casting mould on the basis of embodiment 1
The preferred method of technique, i.e.,：In technique (2) the manufacture auxiliary tool, the machining accuracy of auxiliary tool is higher than Product Precision one
A grade.
Further, the technique (4) applies in high-temperaure coating, and the ingredient of plastic film is that the dissolving of organic solvent butane is poly-
Ethylene is made, and the formula rate of butane and polyethylene is 13:5.
Further, during the technique (5) is dry, wind speed is 0.8-1.1m/s when dry, and air themperature is 35 DEG C.
Further, during the technique (8) is dry, wind speed is 0.8-1.1m/s when dry, and air themperature is 35 DEG C.
Further, during the technique (9) forms by a firing, firing temperature is 2380 DEG C.The other parts of the present embodiment with
Embodiment 1 is identical, repeats no more.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
According to the technical spirit of the present invention to any simple modification, equivalent variations made by above example, the protection of the present invention is each fallen within
Within the scope of.
Claims (6)
1. one kind is for casting superhigh temperature metalwork casting mould production technology, it is characterised in that include the following steps：
(1) mold is designed：Design mold according to product drawing, and draw mold structural drawings and processing in the folder that needs
Tool；
(2) auxiliary tool is manufactured：According to design, the fixture needed for mold is produced；
(3) product model is manufactured：Product model is processed using aluminium, and reserves good demoulding line；
(4) high-temperaure coating is applied：Layer of plastic film is coated on aluminum model first, then coats 1mm on aluminum model
Thick high temperature resistant clay；
(5) primary drying：Aluminum mould is put into air-dry machine and is dried, drying time is 15-25min；
(6) it molds：It is using equipment and step (2) fixture that aluminum model, the upper die and lower die for being coated with high temperature resistant clay are fixed
Level is true, and it is small that 1 is stood between the aluminum model for being coated with high temperature resistant clay is put into the upper die and lower die for filling up clay, after compacting
When；
(7) it molds：First to aluminum model electrified regulation, after aluminum model temperature reaches the temperature of plastic film thawing, point
Open upper die and lower die；
(8) redrying：Aluminum mould is put into air-dry machine and is dried, drying time is 10-15 hours；
(9) it forms by a firing：Dried pottery embryo is put into baking furnace, is fired, form by a firing temperature be 2355 DEG C-
2420℃；
(10) Inner Defect Testing：After forming by a firing using ultrasound measuring instrument detection it is internal whether defective and crack；
(11) appearance and size detects：The geometric dimension that product is measured using laser range finder is detected outer using optical imaging apparatus
It sees.
2. according to claim 1 a kind of for casting superhigh temperature metalwork casting mould production technology, it is characterised in that：
In technique (2) the manufacture auxiliary tool, the machining accuracy of auxiliary tool is higher than one grade of Product Precision.
3. according to claim 1 a kind of for casting superhigh temperature metalwork casting mould production technology, it is characterised in that：
The technique (4) applies in high-temperaure coating, and the ingredient of plastic film is made of organic solvent butane polyethylene dissolving, butane and gathers
The formula rate of ethylene is 13:5.
4. according to claim 1 a kind of for casting superhigh temperature metalwork casting mould production technology, it is characterised in that：
During the technique (5) is dry, wind speed is 0.8-1.1m/s when dry, and air themperature is 35 DEG C.
5. according to claim 1 a kind of for casting superhigh temperature metalwork casting mould production technology, it is characterised in that：
During the technique (8) is dry, wind speed is 0.8-1.1m/s when dry, and air themperature is 35 DEG C.
6. according to claim 1 a kind of for casting superhigh temperature metalwork casting mould production technology, it is characterised in that：
During the technique (9) forms by a firing, firing temperature is 2380 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611137620.5A CN106734918B (en) | 2016-12-12 | 2016-12-12 | One kind is for casting superhigh temperature metalwork casting mould production technology |
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| CN201611137620.5A CN106734918B (en) | 2016-12-12 | 2016-12-12 | One kind is for casting superhigh temperature metalwork casting mould production technology |
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| CN106734918B true CN106734918B (en) | 2018-10-02 |
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| CN110508774A (en) * | 2019-10-08 | 2019-11-29 | 扬州市君瑞企业管理有限公司 | A kind of automobile B-column mold process units and its technique |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693282A (en) * | 2009-10-22 | 2010-04-14 | 南阳市汇森精密仪器铸造有限公司 | Method for producing voltage-bearing aluminum alloy tank body of ultra-high voltage switch by V-process |
| CN101805159A (en) * | 2010-04-14 | 2010-08-18 | 苏益仁 | Liquid-state casting fast curing-formed high-temperature resistant pottery clay and moulding technology |
| CN104439074A (en) * | 2014-11-27 | 2015-03-25 | 宁波通达精密铸造有限公司 | Fusible mold precision casting method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000038653A (en) * | 1998-07-21 | 2000-02-08 | Sumitomo Electric Ind Ltd | Die or mold having surface film |
-
2016
- 2016-12-12 CN CN201611137620.5A patent/CN106734918B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693282A (en) * | 2009-10-22 | 2010-04-14 | 南阳市汇森精密仪器铸造有限公司 | Method for producing voltage-bearing aluminum alloy tank body of ultra-high voltage switch by V-process |
| CN101805159A (en) * | 2010-04-14 | 2010-08-18 | 苏益仁 | Liquid-state casting fast curing-formed high-temperature resistant pottery clay and moulding technology |
| CN104439074A (en) * | 2014-11-27 | 2015-03-25 | 宁波通达精密铸造有限公司 | Fusible mold precision casting method |
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Effective date of registration: 20200305 Address after: 314511 East floor, 143 lianhuabang, Wufeng village, Chongfu Town, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Jiaxing Deji Machinery Design Co., Ltd Address before: 401520 Chongqing Hechuan East Office West Village four Patentee before: Chongqing Hechuan silver nest Casting Factory |
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Effective date of registration: 20200601 Address after: 215400 Zhongyan industrial community, Xijing, Fuqiao Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: Suzhou worrell Machinery Industry Co., Ltd Address before: 314511 East floor, 143 lianhuabang, Wufeng village, Chongfu Town, Tongxiang City, Jiaxing City, Zhejiang Province Patentee before: Jiaxing Deji Machinery Design Co.,Ltd. |
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