CN102717026A - Photo-cured mold filled with metal powder slurry and method for manufacturing photo-cured mold - Google Patents
Photo-cured mold filled with metal powder slurry and method for manufacturing photo-cured mold Download PDFInfo
- Publication number
- CN102717026A CN102717026A CN2012101968504A CN201210196850A CN102717026A CN 102717026 A CN102717026 A CN 102717026A CN 2012101968504 A CN2012101968504 A CN 2012101968504A CN 201210196850 A CN201210196850 A CN 201210196850A CN 102717026 A CN102717026 A CN 102717026A
- Authority
- CN
- China
- Prior art keywords
- mold
- mould
- resin
- slurry
- photocuring
- 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.)
- Pending
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
本发明设计一种光固化树脂模具，包括公模和母模。所述公模和母模结构体抽壳1-3mm，并将模具的一个非配合面去除。采用光固化快速成形技术制作树脂模具，模具内部填充金属粉、基体树脂、偶联剂和促进剂形成的浆料,然后采用真空注型机对浆料进行2-5min脱泡处理，填充至模具空腔直至填满，模具表面均匀涂平。6-24h后树脂固化，将模具表面使用砂纸打磨，可以得到含有金属粉的树脂模具。本发明通过光固化快速成形技术和浆料填充得到的模具，其精度可达到CT4等级，且模具导热性好、强度较高，保证蜡模成形时能均匀快速冷却。本方法相对于传统技术无需制造金属模具，节省材料和成本，且能制作出CT4-CT5等级的精密铸造用蜡模。
The invention designs a light-curing resin mold, which includes a male mold and a female mold. The structure of the male mold and the female mold is extracted by 1-3mm, and a non-matching surface of the mold is removed. The resin mold is made by light-curing rapid prototyping technology, and the inside of the mold is filled with a slurry formed by metal powder, matrix resin, coupling agent and accelerator, and then the slurry is degassed for 2-5 minutes by a vacuum injection molding machine, and then filled into the mold The cavity is filled until the mold surface is evenly coated. After 6-24 hours, the resin is solidified, and the surface of the mold is polished with sandpaper to obtain a resin mold containing metal powder. The precision of the mold obtained by the invention through light-curing rapid prototyping technology and slurry filling can reach CT4 level, and the mold has good thermal conductivity and high strength, which ensures uniform and rapid cooling when the wax mold is formed. Compared with the traditional technology, the method does not need to manufacture metal molds, saves materials and costs, and can produce CT4-CT5 wax patterns for precision casting.
Description
Technical field:
The invention belongs to the rapid die-manufacturing field, particularly a kind of photocuring mould of filling the metal powder slurry and preparation method thereof.
Background technology:
Lost-wax process is a kind of method of model casting, wax-pattern surface is coated refractory material process shell, melts to cast behind the mould dewax to such an extent that make precision casting after the roasting at high temperature.The foundry goods that model casting obtains can be realized near-net-shape, on the very high part of required precisions such as Aero-Space, automobile, is widely used.In the lost-wax process casting, wax pattern is that the middle 3D shape of hot investment casting is transmitted part, and its quality has directly determined the precision of foundry goods.The tradition hot investment casting is to adopt to press the wax-pattern tool to make wax pattern in batches, is the long and high process of expense of one-period but make metal crimp wax-pattern tool.To the trial-production of small batch new product, how shortening the mould manufacturing time is to make the problem that must solve fast with reducing cost.
The photocureable rapid shaping technology has accuracy of manufacture height, can make the advantage of complicated inner cavity structure.Utilize the photocureable rapid shaping technology to make pressing the wax-pattern tool to come alternative metals to press the wax-pattern tool is the effective way that shortens mold cycle, reduces manufacturing cost.
Because the thermal conductivity factor very low (less than 0.5W/ (m ℃)) of general resin material; Resin die wax pattern cooling velocity is slow, causes the wax-pattern manufacturing cycle long, and the thermal deformation of wax-pattern and mould is big; The mass defect of wax-pattern is many in the cooling procedure, directly influences the hot investment casting casting quality.
The thermal conductivity of copper, aluminium, iron is better in the metal powder, and is also higher by the slurry coefficient of heat conduction of these metal dust preparations, can realize wax-pattern internal heat rapid diffusion, shortens the wax-pattern manufacturing cycle, improves the wax-pattern quality.
Summary of the invention:
The invention provides a kind of light-cured resin mould of filling the metal powder slurry and preparation method thereof; Through the photocuring rapid prototyping technology; The resin die that can prepare any complicacy fast; Contain the slurry of metal dust through filling, can improve the heat-conductive characteristic and the intensity of mould, finally obtain high-precision wax-pattern fast.Specific as follows:
A kind of photocuring mould comprises male model and master mold, and the structure of said male model and master mold is taken out behind the shell 1-3mm curing molding behind the filling paste.Said slurry comprises metal powder, matrix resin, coupling agent and promoter, and the viscosity of slurry is between 2-18Pas.Said metal powder is aluminium powder, copper powder or iron powder, and the mass ratio of metal powder is 40%-70% in the slurry, and the matrix resin mass ratio is between the 25%-55%, and coupling agent and promoter account for mass ratio altogether between 0.5%-3%, and the curing agent mass ratio is between the 5%-10%.Mould after the curing uses sand papering, the smooth no bubble of die surface or protruding.The material of said photocuring mould is a light-cured resin, and this light-cured resin liquid viscosity in the time of 30 ℃ is about 240cps, density 1.1-1.2g/cm
3, photocuring after-drawing intensity 45.4-45.7MPa, elastic modelling quantity 2460-2500MPa, shore hardness are that D is about 81.
As weigh the preparation method of described photocuring mould, comprise the steps: at first to use the delamination software frame that the resin die that designs is converted into plurality of thin layer plane graph data and be input in the photocureable rapid shaping machine; During photocuring rapid prototyping, use laser instrument successively to scan the liquid resin liquid level, the resin after successively solidifying constitutes needed photocuring mould original shape; Use type vacuum injecting and forming machine that slurry is carried out deaeration and handle, fill mold cavity then until being full of.Normal temperature following hardening time is 6-24h, is 3-12h 30-35 ℃ of condition following hardening time.
Innovation part of the present invention:
The present invention designs a kind of preparation method of filling the photocuring mould of metal powder slurry; Through the designing mould structure, structure is taken out shell 1-3mm and is removed non-mating surface, uses the photocuring former to prepare the SL mould; Fill the slurry that contains metal powder then, solidify the back polishing and obtain mould.This method is through adding the metal powder composition; Than the traditional metal mould, manufacturing cycle is short, can prepare the wax-pattern of any complicacy; Than resin die; Save material and cost, the thermal conductivity that increases mould more can and mould strength, can shorten wax-pattern manufacturing cycle and the quality that improves wax-pattern significantly.
Description of drawings:
Fig. 1 is a kind of concrete part sketch map that the present invention relates to.
Fig. 2 (a) is the male model sketch map of a kind of concrete component die that the present invention relates to
Fig. 2 (b) is the master mold sketch map of a kind of concrete component die that the present invention relates to.
The specific embodiment:
Below in conjunction with instantiation the present invention is described further.
According to design of part designing mould structure; The photocuring mould structure should guarantee that dimensional accuracy and surface quality are higher than the precision quality of target wax-pattern; In slurry perfusion, keep appearance and size indeformable simultaneously, the mould structure body is taken out thickness of the shell 1-3mm, and remove one of them non-mating surface.
Use the delamination software frame with the resin die that designs, lift height is 0.1mm, is converted into plurality of thin layer plane graph data and is input in the photocureable rapid shaping machine.During photocuring rapid prototyping, use laser instrument successively to scan the liquid resin liquid level, the resin after successively solidifying constitutes needed photocuring mould original shape.
Consult Fig. 1, shown in Figure 2, among the present invention, the photocuring mould comprises that male model, master mold constitute, and the interior shape face of male model, master mold has light-cured resin to constitute.The inner cavity part of male model, master mold adds the slurry curing that matrix resin, coupling agent and promoter etc. form and forms by containing metal powder, and the metal powder of use is aluminium powder, copper powder or the iron powder of high heat conduction.Compare with traditional metal die, it is shorter that the mould that contains metal packing manufactures and designs the cycle, and the manufacturing cycle was looked the mould complexity about 3-7 days; Compare with the mould that complete resin constitutes, the mould that contains metal packing contains a large amount of metal powder compositions, and heat conductivility is better, makes wax-pattern to solidify by shorter time, shortens the wax-pattern manufacturing cycle greatly, and improves the wax-pattern quality.
When preparation contains the slurry of metal powder; Need guarantee that slurry contains certain fluidity; According to result's contrast of experiment and analysis,, guarantee that the slurry filling is closely knit in order to reach good flow effect; The slurry that reply prepares carries out vacuum defoamation 2-5min to be handled, and in filling paste, can select to use the auxiliary grouting of vibrations equipment.
The equipment that the preparation of the mould that the present invention uses is used is that " the permanent logical intelligence machine Co., Ltd in Shaanxi " produces SPS450B type photocureable rapid shaping machine; The photosensitive resin that uses is Somos 14120 type photosensitive resins; Its fluid viscosity under 30 ℃ of conditions is about 240cps, density 1.1-1.2g/cm3, photocuring after-drawing intensity 45.4-45.7MPa; Elastic modelling quantity 2460-2500MPa, shore hardness are that D is about 81.
The wax-pattern that the photocuring mould of making among the present invention can be made comprises low temperature wax, middle temperature wax and high temperature wax, and the precision of wax-pattern preparation can reach CT4-CT5.
Claims (7)
1. photocuring mould; Comprise male model and master mold; The structure of said male model and master mold is taken out filling paste curing molding behind the shell 1-3mm, and male model and master mold assembling form a full die that comprises cavity, and it is characterized in that: said slurry comprises metal powder and matrix resin.
2. a kind of according to claim 1 photocuring mould, it is characterized in that: said slurry also comprises coupling agent and promoter, the viscosity of slurry is between 2-18Pas.
3. like the said a kind of photocuring mould of claim 2; It is characterized in that: said metal powder is aluminium powder, copper powder or iron powder; The mass ratio of metal powder is 40%-69.5% in the slurry; The matrix resin mass ratio is between the 25%-55%, and mass ratio is between 0.5%-3% separately for coupling agent and promoter, and the curing agent mass ratio is between the 5%-10%.
4. like the said a kind of photocuring mould of claim 3, it is characterized in that: the mould after the curing uses sand papering, the smooth no bubble of die surface or protruding.
5. like the said a kind of photocuring mould of claim 4, it is characterized in that: the material of said photocuring mould is a light-cured resin, and this light-cured resin liquid viscosity in the time of 30 ℃ is about 240cps, density 1.1-1.2g/cm
3, photocuring after-drawing intensity 45.4-45.7MPa, elastic modelling quantity 2460-2500MPa, shore hardness are that D is about 81.
6. like the preparation method of each described photocuring mould of claim 1-5, it is characterized in that, comprise the steps: at first to use delamination software that the resin die that designs is converted into plurality of thin layer plane graph data and be input in the photocureable rapid shaping machine; During photocuring rapid prototyping, use laser instrument successively to scan the liquid resin liquid level, the resin after successively solidifying constitutes needed photocuring mould original shape; Use type vacuum injecting and forming machine that slurry is carried out deaeration and handle, fill mold cavity then until being full of.
7. method as claimed in claim 6 is characterized in that: normal temperature following hardening time is 6-24h, is 3-12h 30-35 ℃ of condition following hardening time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101968504A CN102717026A (en) | 2012-06-14 | 2012-06-14 | Photo-cured mold filled with metal powder slurry and method for manufacturing photo-cured mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101968504A CN102717026A (en) | 2012-06-14 | 2012-06-14 | Photo-cured mold filled with metal powder slurry and method for manufacturing photo-cured mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102717026A true CN102717026A (en) | 2012-10-10 |
Family
ID=46942970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101968504A Pending CN102717026A (en) | 2012-06-14 | 2012-06-14 | Photo-cured mold filled with metal powder slurry and method for manufacturing photo-cured mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102717026A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008559A (en) * | 2013-01-11 | 2013-04-03 | 沈阳铸造研究所 | Preparation method of high-heat-conductivity high-collapsibility oil tube core |
| CN103146166A (en) * | 2013-03-07 | 2013-06-12 | 佛山市浪鲸洁具有限公司 | Forming mold of sanitary product and preparation method thereof |
| CN103223466A (en) * | 2013-04-17 | 2013-07-31 | 西安交通大学 | Rapid metal die manufacturing method for turbine blades |
| CN105599178A (en) * | 2016-01-11 | 2016-05-25 | 西安交通大学 | Light curing injection mold cores and manufacturing method thereof |
| CN106694804A (en) * | 2016-11-21 | 2017-05-24 | 浙江省机电设计研究院有限公司 | Rapid wax injection mold manufacturing process based on photo-curing 3D printing technique |
| CN107377970A (en) * | 2017-07-11 | 2017-11-24 | 宁波匠心快速成型技术有限公司 | A kind of inexpensive metal 3D printing method |
| CN108746588A (en) * | 2018-06-13 | 2018-11-06 | 东莞市原力无限打印科技有限公司 | The preparation method and metal material of metal die are made using 3D printing |
| CN109304539A (en) * | 2018-11-02 | 2019-02-05 | 英诺激光科技股份有限公司 | It is a kind of with arbitrary surface, for difference correction optical device indirect production method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737072A (en) * | 2004-08-18 | 2006-02-22 | 播磨化成株式会社 | Conductive adhesive agent and process for manufacturing article using the conductive adhesive agent |
| CN1887565A (en) * | 2006-06-29 | 2007-01-03 | 沈华强 | Metallizing treatment process of resin product surface |
| CN101928540A (en) * | 2009-10-16 | 2010-12-29 | 北京工业大学 | A kind of epoxy conductive adhesive and preparation method thereof |
| CN101954446A (en) * | 2010-09-29 | 2011-01-26 | 西安交通大学 | Photocuring die and method for manufacturing waxy template for precise casting |
| WO2011132389A1 (en) * | 2010-04-19 | 2011-10-27 | 株式会社カネカ | Thermoplastic resin with high thermal conductivity |
-
2012
- 2012-06-14 CN CN2012101968504A patent/CN102717026A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737072A (en) * | 2004-08-18 | 2006-02-22 | 播磨化成株式会社 | Conductive adhesive agent and process for manufacturing article using the conductive adhesive agent |
| CN1887565A (en) * | 2006-06-29 | 2007-01-03 | 沈华强 | Metallizing treatment process of resin product surface |
| CN101928540A (en) * | 2009-10-16 | 2010-12-29 | 北京工业大学 | A kind of epoxy conductive adhesive and preparation method thereof |
| WO2011132389A1 (en) * | 2010-04-19 | 2011-10-27 | 株式会社カネカ | Thermoplastic resin with high thermal conductivity |
| CN101954446A (en) * | 2010-09-29 | 2011-01-26 | 西安交通大学 | Photocuring die and method for manufacturing waxy template for precise casting |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008559A (en) * | 2013-01-11 | 2013-04-03 | 沈阳铸造研究所 | Preparation method of high-heat-conductivity high-collapsibility oil tube core |
| CN103008559B (en) * | 2013-01-11 | 2015-11-04 | 沈阳铸造研究所 | Preparation method of high heat transfer and high collapse oil pipe core |
| CN103146166A (en) * | 2013-03-07 | 2013-06-12 | 佛山市浪鲸洁具有限公司 | Forming mold of sanitary product and preparation method thereof |
| CN103146166B (en) * | 2013-03-07 | 2015-12-09 | 佛山市浪鲸洁具有限公司 | Forming mould of a kind of sanitaryware and preparation method thereof |
| CN103223466A (en) * | 2013-04-17 | 2013-07-31 | 西安交通大学 | Rapid metal die manufacturing method for turbine blades |
| CN103223466B (en) * | 2013-04-17 | 2015-05-27 | 西安交通大学 | Rapid metal die manufacturing method for turbine blades |
| CN105599178A (en) * | 2016-01-11 | 2016-05-25 | 西安交通大学 | Light curing injection mold cores and manufacturing method thereof |
| CN106694804A (en) * | 2016-11-21 | 2017-05-24 | 浙江省机电设计研究院有限公司 | Rapid wax injection mold manufacturing process based on photo-curing 3D printing technique |
| CN107377970A (en) * | 2017-07-11 | 2017-11-24 | 宁波匠心快速成型技术有限公司 | A kind of inexpensive metal 3D printing method |
| CN108746588A (en) * | 2018-06-13 | 2018-11-06 | 东莞市原力无限打印科技有限公司 | The preparation method and metal material of metal die are made using 3D printing |
| CN109304539A (en) * | 2018-11-02 | 2019-02-05 | 英诺激光科技股份有限公司 | It is a kind of with arbitrary surface, for difference correction optical device indirect production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102717026A (en) | Photo-cured mold filled with metal powder slurry and method for manufacturing photo-cured mold | |
| CN103223466B (en) | Rapid metal die manufacturing method for turbine blades | |
| CN100560534C (en) | A kind of manufacturing method of alumina-based ceramic core | |
| CN100506428C (en) | A method of directly making cores in narrow slots and blind holes of wax models | |
| US20170312813A1 (en) | Casting method of using 3d printing to make shell mold and vacuum casting device for use in the casting method | |
| CN101992272B (en) | Self-adaptive casting mould manufacture method for casting | |
| CN101913251B (en) | Liquid molding core-melting forming process for complicated resin-based composite material structural member | |
| Equbal et al. | Rapid tooling: A major shift in tooling practice | |
| CN106694804A (en) | Rapid wax injection mold manufacturing process based on photo-curing 3D printing technique | |
| JP2016203248A (en) | Precision casting manufacturing method using 3D printer | |
| CN102806310B (en) | Metal component casting process | |
| CN103464690A (en) | Manufacturing method of ceramic mold of monocrystal turbine blade | |
| CN108101519A (en) | A kind of ceramic-mould preparation method for the shaping of parts with complex structures directional solidification | |
| CN107790624A (en) | A kind of method that evaporative pattern is prepared using 3DP printing techniques | |
| CN107243590A (en) | A kind of ceramic-mould preparation method of oriented single crystal high temperature alloy part | |
| CN109158542A (en) | Ceramic mold casting PS unitary mould and its quick cast method based on selective laser sintering | |
| CN105751409A (en) | Manufacturing method of carbon fiber composite material part mold | |
| CN104722757A (en) | Moulding sand special for laser 3D printing and preparation process and application thereof | |
| CN104972063A (en) | Method for manufacturing wax mould for precision investment casting | |
| CN1093446C (en) | Fast metal mold producing technology | |
| CN104550715A (en) | Method for manufacturing integral casting metal mould | |
| CN110102711A (en) | The manufacturing method of steel-casting moulding process casting mold | |
| CN101623907B (en) | Method for preparing three-dimensional photoelastic analysis model by applying rapid forming gypsum mold process | |
| CN110860658B (en) | Preparation method of wax mold gypsum core of cylindrical thin-wall complex component | |
| CN109834220A (en) | A kind of aluminium alloy full form casting process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |