CN1303038C - Technical method for rapid shaping silicon carbide ceramic part utilizing laminated solid body - Google Patents
Technical method for rapid shaping silicon carbide ceramic part utilizing laminated solid body Download PDFInfo
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- CN1303038C CN1303038C CNB2005101245261A CN200510124526A CN1303038C CN 1303038 C CN1303038 C CN 1303038C CN B2005101245261 A CNB2005101245261 A CN B2005101245261A CN 200510124526 A CN200510124526 A CN 200510124526A CN 1303038 C CN1303038 C CN 1303038C
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Abstract
The present invention puts forward a technological method for manufacturing silicon carbide ceramic composite material members by using a laminated object manufacturing (LOM) rapid molding technology. The characteristic of easy manufacture of members in complex shapes of the rapid molding technology is combined with a reaction sintering silicon carbide technology, the defects of traditional technologies are overcome, and the problem of the manufacture of ceramic structural members in complex shapes can be solved. The method of the present invention mainly comprises the following steps: web is used as a molding material for manufacturing the members according to a laminated object manufacturing theory, phenolic resin is used as a binding agent, and original models of the members are manufactured through the rapid molding technology and are converted into three-dimensional carbon brackets through a pyrogenation technology; then, the high temperature siliconizing of the three-dimensional carbon brackets is carried out, and silicon reacts in situ on the carbon brackets, and silicon carbide ceramic and the composite material members of the silicon carbide ceramic are formed. The method achieves the dieless manufacture of silicon carbide ceramic members in complex shapes.
Description
Technical field
The present invention relates to a kind of novel process of ceramic component, particularly complex-shaped, based on the processing method of utilizing the laminated solid body rapid shaping silicon carbide ceramic part of paper and resol.
Background technology
Silicon carbide ceramics has characteristics such as hot strength height, wear-resistant, high rigidity, is one of most important engineering materials, is widely used and urgent demand in fields such as petrochemical complex, aerospace, defence and militaries.Traditional preparation technology utilizes mould that powder stock is made base substrate, and high temperature sintering produces member then, and this method is subjected to the restriction of Mold Making, can not meet the demands on complex-shaped degree.The layered composite ceramic of Recent study can improve the toughness of pottery greatly, overcomes the deadly defect of ceramic sudden fracture, and the applicant also studies the processing method of the moulding of pottery.
Summary of the invention
In order to satisfy the needs of using, overcome the silicon carbide ceramics quality is hard, post-production is difficult to and known processes exists defective or deficiency, the present invention proposes the processing method that a kind of base utilizes the laminated solid body rapid shaping silicon carbide ceramic part, this technology can produce ceramic component complex-shaped, that be organized as laminate structure, the material that goes that need not the later stage is processed the technology simple possible.
In order to realize above-mentioned functions, the technical solution used in the present invention is: a kind of processing method of utilizing the laminated solid body rapid shaping silicon carbide ceramic part is a raw material with paper and resol, it is characterized in that, specifically comprises the following steps:
1), constructs the three-dimensional data model of product, and data model is converted into the STL formatted file according to actual requirement;
2) do layering with the delamination software of rapidform machine self and handle, and processing data is imported in the manufacturing course;
3) resol of selecting pure dissolubility for use is as binding agent, and coil paper is as formed material;
4) produce papery presoma rapid prototyping product with rapidform machine; Utilize step 2) the profile of every layer of individual-layer data laser beam cutting, forms every layer entity, accumulation successively, the binding agent of being made by resol bonds together it, makes the papery presoma rapid prototyping of ceramic part;
5) papery presoma rapid prototyping is put into drying baker and carried out later stage curing, the oven dry starting temperature is 60 ℃, every 10 hours temperature is raise 20 ℃, is raised to 120 ℃ until temperature and stops to heat up, the oven dry back is taken out and is carried out carbonization, obtains papery presoma rapid prototyping product;
6) the papery presoma rapid prototyping that obtains is put into the carbonization of nitrogen atmosphere pyrolysis oven, heat-up rate: per hour 100 ℃, carbonization temperature: 800 ℃～1000 ℃, soaking time is: 1～2h, cool to room temperature then with the furnace and take out, obtain the three-dimensional carbon template of product;
7) the three-dimensional carbon template of product is put into plumbago crucible and is used the embedding of Si powder, silicon and three-dimensional carbon template weight ratio are 3: 1, put in the high-temperature vacuum furnace then and heat, heat-up rate: per hour 600 ℃, temperature of reaction: 1450 ℃～1550 ℃, soaking time is: 0.5～1h, rise to 1650 ℃ again, the row of vacuumizing Si 20～30min cools to room temperature with the furnace and takes out, and can obtain the molded article of composite silicon carbide ceramic material.
Method of the present invention adopts laminated solid body rapid prototyping technology to combine with response type silicon carbide preparation technology, change traditional ceramic component preparation process, can produce the silicon carbide ceramics molded article that any structure is complex-shaped, dimensional precision is higher.For small serial production silicon carbide ceramics and composite product thereof provide new processing method, improved the development speed of high-temperature structural components and customized product greatly, realized accurate manufacturing of no mould of composite silicon carbide ceramic material.
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is the product three-dimensional model diagram;
Fig. 3 is the carbonization synoptic diagram; Symbolic representation among the figure is: 1. papery presoma rapid prototyping, 2. crucible, 3. nitrogen atmosphere pyrolysis oven;
Fig. 4 oozes Si reaction synoptic diagram, and the symbolic representation among the figure is: 21. three-dimensional carbon templates, 22. plumbago crucible, 23.Si powder, 24. high-temperature vacuum furnaces.
The present invention is described in further detail below in conjunction with embodiment that accompanying drawing and contriver provide.
Embodiment
The processing method of utilizing the laminated solid body rapid shaping silicon carbide ceramic part of the present invention, make prototype by quick shaping process, for the profile and the interior tissue of silicon carbide ceramics provides organic formwork, be converted into inorganic template by pyrolytic process---three-dimensional carbon template.Carry out the high temperature siliconising then, silicon carries out reaction in and forms the composite silicon carbide ceramic material shaped component on carbon template.
Embodiment 1:
Referring to Fig. 1, present embodiment is a raw material with paper and resol, and its processing step comprises:
1.3D the pattern layout step is according to actual requirement, with the three-dimensional data model of Pro/E software construction product, as shown in Figure 2; And model shown in Figure 2 is stored as the STL formatted file;
2. the delamination software that carries with rapidform machine is done the layering processing, and processing data is imported in the manufacturing course; Above-mentioned steps all is mature technologies of this area.
3. adding weight ratio with 2130# resol is that 4% benzene semi-annular jade pendant acyl chlorides mixes the binding agent as interlayer.
4. on rapidform machine, produce papery presoma rapid prototyping.
5. the papery presoma rapid prototyping of manufacturing is put into baking oven and make the phenolic resin adhesive deeply-curing.The baking oven starting temperature is made as 60 ℃, every 10 hours temperature is raise 20 ℃, stops to heat up up to 120 ℃, obtains the papery presoma rapid prototyping 1 of Fig. 3 after the oven dry, takes out then and carries out carbonization.
6. the process of carbonization is, the papery presoma rapid prototyping 1 that obtains Fig. 3 is put into crucible 2 (Fig. 3), put carbonization in the nitrogen atmosphere stove 3 again into, heat-up rate: 100 ℃/h, carbonization temperature: 800 ℃, soaking time is: 1h, and cool to room temperature then with the furnace and take out, obtain the three-dimensional carbon template 21 (Fig. 4) of product;
7. put into three-dimensional carbon template 21 and with 23 embeddings of Si powder, the Si powder directly is 100 μ m in plumbago crucible 22, the weight ratio of silicon and three-dimensional carbon template is subsequently plumbago crucible 22 to be put in the high-temperature vacuum furnace heating in 24 at 3: 1, as shown in Figure 4.Heat-up rate: 600 ℃/h, temperature of reaction: 1500 ℃, soaking time is: 0.5h, and again through the 1650 ℃ of row of vacuumizing Si 20min, cool to room temperature with the furnace and take out, silicon and carbon template produce chemical reaction, obtain the molded article of composite silicon carbide ceramic material;
8. molded article being carried out surface-conditioning gets final product.
Embodiment 2:
Different is that in step 6, carbonization temperature: 1000 ℃, soaking time is: 0.5h for present embodiment and embodiment 1; In the step 7, the Si powder directly is 50 μ m, temperature of reaction: 1550 ℃, soaking time is: 1h, all the other are all with embodiment 1.
Claims (2)
1. a processing method of utilizing the laminated solid body rapid shaping silicon carbide ceramic part is a raw material with paper and resol, it is characterized in that, specifically comprises the following steps:
1), constructs the three-dimensional data model of product, and data model is converted into the STL formatted file according to actual requirement;
2) do layering with the delamination software of rapidform machine self and handle, and processing data is imported in the manufacturing course;
3) resol of selecting pure dissolubility for use is as binding agent, and coil paper is as formed material;
4) produce papery presoma rapid prototyping with rapidform machine;
5) papery presoma rapid prototyping is put into drying baker and carried out later stage curing, the oven dry starting temperature is 60 ℃, every 10 hours temperature is raise 20 ℃, is raised to 120 ℃ until temperature and stops to heat up, the oven dry back is taken out and is carried out carbonization, obtains papery presoma rapid prototyping product;
6) the papery presoma rapid prototyping product that obtains is put into the carbonization of nitrogen atmosphere pyrolysis oven, heat-up rate: per hour 100 ℃, carbonization temperature: 800 ℃～1000 ℃, soaking time is: 1～2h, cool to room temperature then with the furnace and take out, obtain the three-dimensional carbon template of product;
7) the three-dimensional carbon template of product is put into plumbago crucible and is used the embedding of Si powder, silicon and three-dimensional carbon template weight ratio are 3: 1, put in the high-temperature vacuum furnace then and heat, heat-up rate: per hour 600 ℃, temperature of reaction: 1450 ℃～1550 ℃, soaking time is: 0.5～1h, rise to 1650 ℃ again, the row of vacuumizing Si 20～30min cools to room temperature with the furnace and takes out, and can obtain the molded article of composite silicon carbide ceramic material.
2. the method for claim 1 is characterized in that, described binding agent is that 4% benzene semi-annular jade pendant acyl chlorides mixes for 2130# resol adds weight ratio.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101245261A CN1303038C (en) | 2005-12-12 | 2005-12-12 | Technical method for rapid shaping silicon carbide ceramic part utilizing laminated solid body |
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| CN1303038C true CN1303038C (en) | 2007-03-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100364926C (en) * | 2006-07-13 | 2008-01-30 | 西安交通大学 | Prepn process of laminated SiC-base composite ceramic |
| CN102991861B (en) * | 2012-12-11 | 2015-05-06 | 金红叶纸业集团有限公司 | Container and manufacturing method thereof, and paper product with container |
| CN102987969A (en) * | 2012-12-11 | 2013-03-27 | 金红叶纸业集团有限公司 | Container and manufacturing method thereof, and household paper with container |
| CN102973193B (en) * | 2012-12-20 | 2016-03-02 | 金红叶纸业集团有限公司 | Paper-extracting box and manufacture method thereof |
| EP3186054B1 (en) * | 2014-08-27 | 2020-08-12 | The Exone Company | Process for making carbon articles by three dimensional printing |
| CN104291338B (en) * | 2014-09-10 | 2015-12-30 | 济南大学 | A kind of three D print the preparation method of rapid shaping nm-class silicon carbide material |
| CN111451492B (en) * | 2020-03-23 | 2021-09-07 | 陕西斯瑞新材料股份有限公司 | Method for preparing CuW90 material by using spherical tungsten powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364746A (en) * | 2001-04-28 | 2002-08-21 | 中国科学院长春光学精密机械与物理研究所 | Forming process for silicon carbide reflector blank and expansion and contraction mold |
| CN1609054A (en) * | 2004-10-22 | 2005-04-27 | 西安交通大学 | Technological process of forming composite silicon carbide ceramic material based on pyrolysis of photocured prototype |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1364746A (en) * | 2001-04-28 | 2002-08-21 | 中国科学院长春光学精密机械与物理研究所 | Forming process for silicon carbide reflector blank and expansion and contraction mold |
| CN1609054A (en) * | 2004-10-22 | 2005-04-27 | 西安交通大学 | Technological process of forming composite silicon carbide ceramic material based on pyrolysis of photocured prototype |
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