CN101550007B - Integral quick forming method for ceramic parts based on paraffin - Google Patents
Integral quick forming method for ceramic parts based on paraffin Download PDFInfo
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- CN101550007B CN101550007B CN2009100222538A CN200910022253A CN101550007B CN 101550007 B CN101550007 B CN 101550007B CN 2009100222538 A CN2009100222538 A CN 2009100222538A CN 200910022253 A CN200910022253 A CN 200910022253A CN 101550007 B CN101550007 B CN 101550007B
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Abstract
An integral quick forming method for ceramic parts based on paraffin comprises the following steps of: using 3D software to generate a 3D entity model of the required parts; layering by layered software to obtain the shape of each layer; melting the paraffin to inject into a trough body; grinding the paraffin into wax pieces with certain thickness by a pressing roller; carving grids; engraving thewax pieces based on the shape of a first layer of entity model after layering; filling the powder dissolving in the water in the hollow parts of the wax layers; repeating the steps of manufacturing w ax pieces, engraving shapes and filling powder sequentially to obtain a wax lump with powder filled inside; washing the powder inside the wax lump to form an empty cavity; drying and injecting the molten wax slurry containing ceramic powder into the empty cavity; solidifying and de-waxing the manufactured 3D prototype entity; and sintering to obtain the required ceramic parts. By adopting the water-soluble powder as the filling and using one-time injection of hot injection molded wax slurry to manufacture the ceramic parts, the method saves the transition among layers and enhances the strengthof the material.
Description
Technical field
The invention belongs to manufacturing forming technique, particularly a kind of integral quick forming method for ceramic parts based on paraffin.
Background technology
At present, the RP technique that is applied to ceramic part mainly contains the laminated solid body manufacturing, fusion sediment manufacturing, ink-jet printing process, stereolithography, selective laser sintering etc.Applying fast-forming technology preparation ceramic part can significantly reduce the production cycle, enhance productivity, yet the ceramic part existence of these technology preparations is high like cost the not high shortcoming of complex procedures, density.Domestic patent aspect, the patent " a kind of quick forming method of ceramic part " (patent No.: ZL 200510041976.4) that China national Department of Intellectual Property announces is characterized by: obtain three-dimensional entity model with three-dimensional software; Use the delamination software layering then, obtain a series of thin layers of 0.1～2mm, obtain every layer of shape; The cell body of the ceramic part that is injected into manufacturing after the paraffin thawing is heavy, flatten; Add new one deck wax material then, back and forth above step obtains 3 d part.It is thus clear that this technological stencil plate is an one, to remove some troubles of existence after the shaping.Its content of " a kind of method for fast mfg of ceramic part " (patent No.: ZL 200510043174.7) is in addition: the three-dimensional entity model that at first needs the ceramic part of manufacturing with 3D sculpting software generation in computingmachine; With delamination software three-dimensional entity model is carried out layering then and obtain every layer shape; According to stratified shape; Portray the skeletal lines and the zone that skeletal lines is outer of this layer and carry out the grid portrayal, filled polyethylene alcohol solution in the slit of portrayal again is successively after the stack; Pass through the de-waxing sintering again and remove the outer clout of product skeletal lines, can obtain required ceramic part.It is thus clear that should technology carry out the grid division for every layer of stencil plate; Be easy to the later stage removal, but a forming process and last similar, as only to be to use a material difference; The process of the removal paraffin of this technology is more time-consuming, is difficult to paraffin is cleaned out for some micro-structures and more sharp-pointed position.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the object of the present invention is to provide a kind of integral quick forming method for ceramic parts based on paraffin, have the advantages that production cost is low, technology is simple, manufacturing accuracy is high.
In order to achieve the above object, the technical scheme of the present invention's employing is:
A kind of integral quick forming method for ceramic parts based on paraffin may further comprise the steps:
(1), generate needed part three-dimensional entity model, carry out layering with delamination software then and handle, be about to three-dimensional entity model and be divided into a series of thin layers that thickness is 0.1～2mm, obtain every layer shape with three-dimensional software;
(2), the cell body of the ceramic part that volume makes greater than needs is injected in the molten good back of paraffin, use pressure roller to grind into the wax disk(-sc) that thickness is 0.1～2mm, carved grid and be convenient to remove;
(3), according to the first layer solid model shape after the layering, with engraving machine wax disk(-sc) is carved, inscribe the paraffin powder that comes and blow away with blower;
(4), water-soluble powder is filled into the part of wax layer hollow out, use doctor blade, remove unnecessary powder;
(5), in cell body, re-inject the paraffin after the fusing, use the wax roller that wax is pressed into the thin layer that thickness is 0.1～2mm;
(6) according to the shape of the second layer three-dimensional entity model after the layering, the engraving wax disk(-sc) has been carved grid, and the paraffin powder of carving is blown away;
(7) water-soluble powder is filled into the part of wax layer hollow out, uses doctor blade, remove unnecessary powder;
(8) shape of the following one deck of basis repeats to make wax disk(-sc), carves shape and fills water-soluble powder on the aspect of last layer successively, obtains the wax stone that an inside is full of the water soluble powder at last;
(9) wax stone is taken out in the immersion water, the powder of the inside is rinsed well, form a cavity, air seasoning at room temperature then;
(10) the wax slurry that 70～120 ℃ of fused is contained the ceramics powder of massfraction 70～90% is filled in the cavity of above-mentioned wax stone; After waiting to solidify; The three-dimensional prototype entity that makes is carried out de-waxing at 150～300 ℃, carry out sintering at 900～1400 ℃ behind the de-waxing and obtain required ceramic part.
Described water-soluble powder be arbitrarily water-soluble and fusing point at the powder more than 50 ℃, like starch, earth, quicklime, sodium hydrogencarbonate, yellow soda ash or iron trichloride.
Because the present invention uses water-soluble powder as packing material, has prepared the paraffin die cavity, utilize present sophisticated injection moulding wax slurry, incorporate ceramic part is processed in disposable injection.Compare with traditional quick forming method, the present invention does not have the transition between layer and the layer, and mechanical property is better; Water is removed the raw material of die cavity, is convenient to recycle, reduces cost.
Embodiment
Embodiment one
A kind of integral quick forming method for ceramic parts based on paraffin may further comprise the steps:
(1), generate needed part three-dimensional entity model, carry out layering with delamination software then and handle, be about to three-dimensional entity model and be divided into a series of thin layers that thickness is 0.1mm, obtain every layer shape with three-dimensional software;
(2), the cell body of the ceramic part that volume makes greater than needs is injected in the molten good back of paraffin, uses pressure roller to grind into the wax disk(-sc) of thickness, carved grid and be convenient to removal as 0.1mm;
(3), according to the first layer solid model shape after the layering, with engraving machine wax disk(-sc) is carved, inscribe the paraffin powder that comes and blow away with blower;
(4), with starch filled part to wax layer hollow out, use doctor blade, remove unnecessary starch;
(5), in cell body, re-inject the paraffin after the fusing, use the wax roller that wax is pressed into the thin layer of thickness as 0.1mm;
(6) according to the shape of the second layer three-dimensional entity model after the layering, the engraving wax disk(-sc) has been carved grid, and the paraffin powder of carving is blown away;
(7) with starch filled part, use doctor blade, remove unnecessary starch to wax layer hollow out;
(8) shape of the following one deck of basis repeats to make wax disk(-sc), engraving shape and filled with starch on the aspect of last layer successively, obtains the wax stone that an inside is full of starch at last;
(9) wax stone is taken out in the immersion water, the starch of the inside is rinsed well, form a cavity, air seasoning at room temperature then;
(10) the wax slurry that 70 ℃ of fused is contained the ceramics powder of massfraction 90% is filled in the cavity of above-mentioned wax stone, after waiting to solidify, the three-dimensional prototype entity that makes is carried out de-waxing at 300 ℃, carries out sintering at 950 ℃ behind the de-waxing and obtains required ceramic part.
Embodiment two
(1), generate needed part three-dimensional entity model, carry out layering with delamination software then and handle, be about to three-dimensional entity model and be divided into a series of thin layers that thickness is 1mm, obtain every layer shape with three-dimensional software;
(2), the cell body of the ceramic part that volume makes greater than needs is injected in the molten good back of paraffin, uses pressure roller to grind into the wax disk(-sc) of thickness, carved grid and be convenient to removal as 1mm;
(3), according to the first layer solid model shape after the layering, with engraving machine wax disk(-sc) is carved, inscribe the paraffin powder that comes and blow away with blower;
(4), earth is filled into the part of wax layer hollow out, use doctor blade, remove unnecessary earth;
(5), in cell body, re-inject the paraffin after the fusing, use the wax roller that wax is pressed into the thin layer of thickness as 1mm;
(6) according to the shape of the second layer three-dimensional entity model after the layering, the engraving wax disk(-sc) has been carved grid, and the paraffin powder of carving is blown away;
(7) earth is filled into the part of wax layer hollow out, uses doctor blade, remove unnecessary earth;
(8) shape of the following one deck of basis repeats to make wax disk(-sc), engraving shape and fills earth on the aspect of last layer successively, obtains an inside at last and is full of argillous wax stone;
(9) wax stone is taken out in the immersion water, the earth of the inside is rinsed well, form a cavity, air seasoning at room temperature then;
(10) the wax slurry that 120 ℃ of fused is contained the ceramics powder of massfraction 70% is filled in the cavity of above-mentioned wax stone, after waiting to solidify, the three-dimensional prototype entity that makes is carried out de-waxing at 260 ℃, carries out sintering at 1000 ℃ behind the de-waxing and obtains required ceramic part.
Embodiment three
(1), generate needed part three-dimensional entity model, carry out layering with delamination software then and handle, be about to three-dimensional entity model and be divided into a series of thin layers that thickness is 1.5mm, obtain every layer shape with three-dimensional software;
(2), the cell body of the ceramic part that volume makes greater than needs is injected in the molten good back of paraffin, uses pressure roller to grind into the wax disk(-sc) of thickness, carved grid and be convenient to removal as 1.5mm;
(3), according to the first layer solid model shape after the layering, with engraving machine wax disk(-sc) is carved, inscribe the paraffin powder that comes and blow away with blower;
(4), quicklime is filled into the part of wax layer hollow out, use doctor blade, remove unnecessary quicklime;
(5), in cell body, re-inject the paraffin after the fusing, use the wax roller that wax is pressed into the thin layer of thickness as 1.5mm;
(6) according to the shape of the second layer three-dimensional entity model after the layering, the engraving wax disk(-sc) has been carved grid, and the paraffin powder of carving is blown away;
(7) quicklime is filled into the part of wax layer hollow out, uses doctor blade, remove unnecessary quicklime;
(8) shape of the following one deck of basis repeats to make wax disk(-sc), engraving shape and fills quicklime on the aspect of last layer successively, obtains the wax stone that an inside is full of quicklime at last;
(9) wax stone is taken out in the immersion water, the quicklime of the inside is rinsed well, form a cavity, air seasoning at room temperature then;
(10) the wax slurry that 90 ℃ of fused is contained the ceramics powder of massfraction 85% is filled in the cavity of above-mentioned wax stone, after waiting to solidify, the three-dimensional prototype entity that makes is carried out de-waxing at 180 ℃, carries out sintering at 1200 ℃ behind the de-waxing and obtains required ceramic part.
Claims (4)
1. integral quick forming method for ceramic parts based on paraffin; It is characterized in that; May further comprise the steps: (one), generate needed part three-dimensional entity model with three-dimensional software; Carry out layering with delamination software then and handle, be about to three-dimensional entity model and be divided into a series of thin layers that thickness is 0.1～2mm, obtain every layer shape; (2), the cell body of the ceramic part that volume makes greater than needs is injected in the molten good back of paraffin, use pressure roller to grind into the wax disk(-sc) that thickness is 0.1～2mm, carved grid and be convenient to remove; (3), according to the first layer solid model shape after the layering, with engraving machine wax disk(-sc) is carved, inscribe the paraffin powder that comes and blow away with blower; (4), water-soluble powder is filled into the part of wax layer hollow out, use doctor blade, remove unnecessary powder; (5), in cell body, re-inject the paraffin after the fusing, use the wax roller that wax is pressed into the thin layer that thickness is 0.1～2mm; (6) according to the shape of the second layer three-dimensional entity model after the layering, the engraving wax disk(-sc) has been carved grid, and the paraffin powder of carving is blown away; (7) water-soluble powder is filled into the part of wax layer hollow out, uses doctor blade, remove unnecessary powder; (8) shape of the following one deck of basis repeats to make wax disk(-sc), carves shape and fills water-soluble powder on the aspect of last layer successively, obtains the wax stone that an inside is full of the water soluble powder at last; (9) wax stone is taken out in the immersion water, the powder of the inside is rinsed well, form a cavity, air seasoning at room temperature then; (10) the wax slurry that 70～120 ℃ of fused is contained the ceramics powder of massfraction 70～90% is filled in the cavity of above-mentioned wax stone; After waiting to solidify; The three-dimensional prototype entity that makes is carried out de-waxing at 150～300 ℃; Carry out sintering at 900～1400 ℃ behind the de-waxing and obtain required ceramic part, more than in each step, described water-soluble powder be water-soluble arbitrarily and fusing point at the powder more than 50 ℃.
2. according to claims 1 described a kind of integral quick forming method for ceramic parts based on paraffin; It is characterized in that; May further comprise the steps: (one), generate needed part three-dimensional entity model with three-dimensional software; Carry out layering with delamination software then and handle, be about to three-dimensional entity model and be divided into a series of thin layers that thickness is 0.1mm, obtain every layer shape; (2), the cell body of the ceramic part that volume makes greater than needs is injected in the molten good back of paraffin, uses pressure roller to grind into the wax disk(-sc) of thickness, carved grid and be convenient to removal as 0.1mm; (3), according to the first layer solid model shape after the layering, with engraving machine wax disk(-sc) is carved, inscribe the paraffin powder that comes and blow away with blower; (4), with starch filled part to wax layer hollow out, use doctor blade, remove unnecessary starch; (5), in cell body, re-inject the paraffin after the fusing, use the wax roller that wax is pressed into the thin layer of thickness as 0.1mm; (6) according to the shape of the second layer three-dimensional entity model after the layering, the engraving wax disk(-sc) has been carved grid, and the paraffin powder of carving is blown away; (7) with starch filled part, use doctor blade, remove unnecessary starch to wax layer hollow out; (8) shape of the following one deck of basis repeats to make wax disk(-sc), engraving shape and filled with starch on the aspect of last layer successively, obtains the wax stone that an inside is full of starch at last; (9) wax stone is taken out in the immersion water, the starch of the inside is rinsed well, form a cavity, air seasoning at room temperature then; (10) the wax slurry that 70 ℃ of fused is contained the ceramics powder of massfraction 90% is filled in the cavity of above-mentioned wax stone, after waiting to solidify, the three-dimensional prototype entity that makes is carried out de-waxing at 300 ℃, carries out sintering at 950 ℃ behind the de-waxing and obtains required ceramic part.
3. according to claims 1 described a kind of integral quick forming method for ceramic parts based on paraffin; It is characterized in that; May further comprise the steps: (one), generate needed part three-dimensional entity model with three-dimensional software; Carry out layering with delamination software then and handle, be about to three-dimensional entity model and be divided into a series of thin layers that thickness is 1mm, obtain every layer shape; (2), the cell body of the ceramic part that volume makes greater than needs is injected in the molten good back of paraffin, uses pressure roller to grind into the wax disk(-sc) of thickness, carved grid and be convenient to removal as 1mm; (3), according to the first layer solid model shape after the layering, with engraving machine wax disk(-sc) is carved, inscribe the paraffin powder that comes and blow away with blower; (4), earth is filled into the part of wax layer hollow out, use doctor blade, remove unnecessary earth; (5), in cell body, re-inject the paraffin after the fusing, use the wax roller that wax is pressed into the thin layer of thickness as 1mm; (6) according to the shape of the second layer three-dimensional entity model after the layering, the engraving wax disk(-sc) has been carved grid, and the paraffin powder of carving is blown away; (7) earth is filled into the part of wax layer hollow out, uses doctor blade, remove unnecessary earth; (8) shape of the following one deck of basis repeats to make wax disk(-sc), engraving shape and fills earth on the aspect of last layer successively, obtains an inside at last and is full of argillous wax stone; (9) wax stone is taken out in the immersion water, the earth of the inside is rinsed well, form a cavity, air seasoning at room temperature then; (10) the wax slurry that 120 ℃ of fused is contained the ceramics powder of massfraction 70% is filled in the cavity of above-mentioned wax stone, after waiting to solidify, the three-dimensional prototype entity that makes is carried out de-waxing at 260 ℃, carries out sintering at 1000 ℃ behind the de-waxing and obtains required ceramic part.
4. according to claims 1 described a kind of integral quick forming method for ceramic parts based on paraffin; It is characterized in that; (1), generates needed part three-dimensional entity model with three-dimensional software; Carry out layering with delamination software then and handle, be about to three-dimensional entity model and be divided into a series of thin layers that thickness is 1.5mm, obtain every layer shape; (2), the cell body of the ceramic part that volume makes greater than needs is injected in the molten good back of paraffin, uses pressure roller to grind into the wax disk(-sc) of thickness, carved grid and be convenient to removal as 1.5mm; (3), according to the first layer solid model shape after the layering, with engraving machine wax disk(-sc) is carved, inscribe the paraffin powder that comes and blow away with blower; (4), quicklime is filled into the part of wax layer hollow out, use doctor blade, remove unnecessary quicklime; (5), in cell body, re-inject the paraffin after the fusing, use the wax roller that wax is pressed into the thin layer of thickness as 1.5mm; (6) according to the shape of the second layer three-dimensional entity model after the layering, the engraving wax disk(-sc) has been carved grid, and the paraffin powder of carving is blown away; (7) quicklime is filled into the part of wax layer hollow out, uses doctor blade, remove unnecessary quicklime; (8) shape of the following one deck of basis repeats to make wax disk(-sc), engraving shape and fills quicklime on the aspect of last layer successively, obtains the wax stone that an inside is full of quicklime at last; (9) wax stone is taken out in the immersion water, the quicklime of the inside is rinsed well, form a cavity, air seasoning at room temperature then; (10) the wax slurry that 90 ℃ of fused is contained the ceramics powder of massfraction 85% is filled in the cavity of above-mentioned wax stone, after waiting to solidify, the three-dimensional prototype entity that makes is carried out de-waxing at 180 ℃, carries out sintering at 1200 ℃ behind the de-waxing and obtains required ceramic part.
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| CN2009100222538A CN101550007B (en) | 2009-04-28 | 2009-04-28 | Integral quick forming method for ceramic parts based on paraffin |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102508316B (en) * | 2011-11-01 | 2013-05-15 | 河海大学 | Molding method and apparatus of three-dimensional cavity model for true three-dimensional model test |
| CN104260353B (en) * | 2014-09-24 | 2017-01-25 | 英华达（上海）科技有限公司 | Rapid molding system and rapid molding method |
| CN104368753B (en) * | 2014-11-07 | 2016-07-06 | 滁州金诺实业有限公司 | V method mould rapid die-manufacturing method based on paraffin characteristic |
| CN106079030B (en) * | 2016-06-14 | 2018-04-17 | 西安交通大学 | A kind of method for fast mfg of the calcium oxide-based ceramic-mould of powder overlay film |
| CN110373254B (en) * | 2019-06-19 | 2021-11-30 | 江阴市凯信模锻有限公司 | Forging lubricating composition and preparation process thereof |
| CN113149688B (en) * | 2020-01-23 | 2022-12-09 | 上海交通大学 | Composite ceramic with honeycomb fiber structure and preparation method thereof |
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| CN101100378A (en) * | 2007-08-03 | 2008-01-09 | 湖南华联特种陶瓷有限公司 | Application of zirconium oxide ceramic in commodity and manufacturing method thereof |
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- 2009-04-28 CN CN2009100222538A patent/CN101550007B/en not_active Expired - Fee Related
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| CN1686691A (en) * | 2005-04-20 | 2005-10-26 | 陕西科技大学 | Fast shaping method of coramic component port |
| CN1765828A (en) * | 2005-09-01 | 2006-05-03 | 陕西科技大学 | Ceramic parts quick making method |
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