CN1793033A - Ceramic core material for precision casting of Titanium alloy - Google Patents
Ceramic core material for precision casting of Titanium alloy Download PDFInfo
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- CN1793033A CN1793033A CN 200510047856 CN200510047856A CN1793033A CN 1793033 A CN1793033 A CN 1793033A CN 200510047856 CN200510047856 CN 200510047856 CN 200510047856 A CN200510047856 A CN 200510047856A CN 1793033 A CN1793033 A CN 1793033A
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- titanium alloy
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Abstract
The invention relates to titanium alloy casting using ceramic core material that contains zirconia 60-85%, yttrium oxide 4-20%, calcium oxide 4-20%, paraffin 5-10%, beeswax 0.25-0.5%, polyethylene 0.05-0.25%, and oleic acid 0.4-0.8%. The invention is suited to hot pressing and injecting technology. It has high chemical inertness, high fire resistance, and good heat shock resistance. And, it is easy to remove.
Description
Technical field: the present invention relates to a kind of ceramic core material, exactly is the complicated ceramic core material of a kind of titanium alloy precision casting.
Background technology: the titanium precision castings in the titanium material is used since its higher production efficiency and good product properties be subjected to day by day paying attention to widely.But the core of the smart casting of titanium usefulness is restriction always and influences the important factor that the titanium precision castings increases Application Areas.The production technique yield rate that prior art hollow core Ti alloy casting is commonly used is low, and because titanium alloy is not recyclable, so waste is extremely serious.If the use core not only can be produced some and use the product that technology in the past can't be produced, and yield rate increases substantially, and can significantly reduce titanium precision castings manufacturing cost.Therefore, have only satisfy high temperature resistant, with the stupalith of technical requirementss such as titanium alloy reaction is little, just can produce the titanium alloy fine casting ceramic core of high levels.
Summary of the invention: purpose of the present invention is exactly to remedy the deficiency that prior art exists, and develops a kind of high-precision complicated ceramic core material for the titanium alloy fine foundry goods.This material should satisfy that titanium alloy fine casting is high temperature resistant to core material, little with titanium alloy reaction, dimensional stability is high, shock-resistant, the technical requirements that easily removes.For achieving the above object, the present invention adopts following technical proposals: ceramic core material for precision casting of Titanium alloy, by following material by weight % form zirconium white 60-85%; Yttrium oxide 4-20%; Calcium oxide 4-20%; Paraffin 5-10%; Beeswax 0.25-0.5%; Polyethylene 0.05-0.25%; Oleic acid 0.4-0.8%.
Its preparation method:
Zirconium white, yttrium oxide, calcium oxide are crossed 325 mesh sieves respectively, get the lower part of screen branch, press following mixed: zirconium white 60-85%; Yttrium oxide 4-20%; Calcium oxide 4-20%; Oleic acid 0.4-0.8%, it is standby 105 ℃ of heating 2 hours to mix the back, paraffin 5-10%; Beeswax 0.25-0.5%; Polyethylene 0.05-0.25% mixed 325 mesh sieves under 130 ℃ standby, and mixer is warming up to 130 ℃, adds the above-mentioned powder that mixes while stirring, and powder all adds the back to be continued to stir 12 hours, pours out the finish mix ingot of cooling.
The ceramic core material of the present invention's preparation is suitable for the core of the various complicated shapes of technology continuous production of hot pressing notes.The core of making has higher unreactiveness, contacts with the molten titanium alloy tangible reaction does not take place; Have higher refractoriness and thermal shock resistance, not weak under the high temperature action of molten titanium alloy, not cracked; Enough intensity is arranged, indeformable when moulding, carrying and shove charge, not broken; Adsorptive power to moisture, gas is little, and it is few to discharge gas during cast; Depoling method is simple and be easy to remove.
Embodiment:
Embodiment one
Get zirconium white: 68.9%; Yttrium oxide: 20%; Calcium oxide: 5%, cross 325 mesh sieves respectively, get the lower part of screen and divide and oleic acid: 0.8% mixes, mix the back 105 ℃ heat 2 hours standby, get paraffin: 5%; Beeswax: 0.25%; Polyethylene: 0.05%, it is standby to mix 325 mesh sieves under 130 ℃, and mixer is warming up to 130 ℃, adds the above-mentioned powder that mixes while stirring, and powder all adds the back to be continued to stir 12 hours, pours out the finish mix ingot of cooling.
Embodiment two
Get zirconium white: 83.85%; Yttrium oxide: 4%; Calcium oxide: 4%, cross 325 mesh sieves respectively, get the lower part of screen and divide and oleic acid: 0.6% mixes, mix the back 105 ℃ heat 2 hours standby, get paraffin: 7%; Beeswax: 0.35%; Polyethylene: 0.2%, it is standby to mix 325 mesh sieves under 130 ℃, and mixer is warming up to 130 ℃, adds the above-mentioned powder that mixes while stirring, and powder all adds the back to be continued to stir 12 hours, pours out the finish mix ingot of cooling.
Embodiment three
Get zirconium white: 85%; Yttrium oxide: 4%; Calcium oxide: 5%, cross 325 mesh sieves respectively, get the lower part of screen and divide and oleic acid: 0.7% mixes, mix the back 105 ℃ heat 2 hours standby, get paraffin: 5%; Beeswax: 0.25%; Polyethylene: 0.05%, it is standby to mix 325 mesh sieves under 130 ℃, and mixer is warming up to 130 ℃, adds the above-mentioned powder that mixes while stirring, and powder all adds the back to be continued to stir 12 hours, pours out the finish mix ingot of cooling.
Embodiment four
Get zirconium white: 60%; Yttrium oxide: 15%; Calcium oxide: 18.9%, cross 325 mesh sieves respectively, get the lower part of screen and divide and oleic acid: 0.8% mixes, mix the back 105 ℃ heat 2 hours standby, get paraffin: 5%; Beeswax: 0.25%; Polyethylene: 0.05%, it is standby to mix 325 mesh sieves under 130 ℃, and mixer is warming up to 130 ℃, adds the above-mentioned powder that mixes while stirring, and powder all adds the back to be continued to stir 12 hours, pours out the finish mix ingot of cooling.
On the ceramic core shaper, can make the ceramic core of some shapes according to mould with above-mentioned material ingot, 90-120 ℃ of material cylinder temperature by following technical parameter; 90-100 ℃ of nozzle temperature; Pressure 4-20Mpa; 2-10 second inject time; Dwell time 10-30 second; Die temperature 30-40 ℃.
Claims (6)
1, ceramic core material for precision casting of Titanium alloy is characterized in that: it by following material by weight % form zirconium white 60-85%; Yttrium oxide 4-20%; Calcium oxide 4-20%; Paraffin 5-10%; Beeswax 0.25-0.5%; Polyethylene 0.05-0.25%; Oleic acid 0.4-0.8%.
2, ceramic core material for precision casting of Titanium alloy as claimed in claim 1 is characterized in that: its concrete consumption, zirconium white 68.9%; Yttrium oxide 20%; Calcium oxide 5%; Oleic acid 0.8%; Paraffin 5%; Beeswax 0.25%; Polyethylene 0.05%.
3, ceramic core material for precision casting of Titanium alloy as claimed in claim 1 is characterized in that: its concrete consumption, zirconium white 83.85%; Yttrium oxide 4%; Calcium oxide 4%; Oleic acid 0.6%; Paraffin 7%; Beeswax 0.35%; Polyethylene 0.2%.
4, ceramic core material for precision casting of Titanium alloy as claimed in claim 1 is characterized in that: its concrete consumption, zirconium white 85%; Yttrium oxide 4%; Calcium oxide 5%; Oleic acid 0.7%; Paraffin 5%; Beeswax 0.25%; Polyethylene 0.05%.
5, ceramic core material for precision casting of Titanium alloy as claimed in claim 1 is characterized in that: its concrete consumption, zirconium white 60%; Yttrium oxide 15%; Calcium oxide 18.9%; Oleic acid 0.8%; Paraffin 5%; Beeswax 0.25%; Polyethylene 0.05%.
6, make the method for any one ceramic core material for precision casting of Titanium alloy described in claim 1-5, it is characterized in that: this method realizes by following processing step:
By said ratio, earlier zirconium white, yttrium oxide and calcium oxide are crossed 325 mesh sieves respectively, getting the lower part of screen branch mixes with oleic acid, it is standby 105 ℃ of heating 2 hours to mix the back, getting paraffin, beeswax and polyethylene, to mix 325 mesh sieves under 130 ℃ standby, and mixer is warming up to 130 ℃, adds the above-mentioned powder that mixes while stirring, powder all adds the back to be continued to stir 12 hours, pours out the finish mix ingot of cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200510047856 CN1793033A (en) | 2005-11-29 | 2005-11-29 | Ceramic core material for precision casting of Titanium alloy |
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| CN 200510047856 CN1793033A (en) | 2005-11-29 | 2005-11-29 | Ceramic core material for precision casting of Titanium alloy |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537473B (en) * | 2008-03-20 | 2011-12-28 | 上海市机械制造工艺研究所有限公司 | Ceramic core for silica sol precision casting and manufacturing process thereof |
| CN101550007B (en) * | 2009-04-28 | 2012-06-27 | 陕西科技大学 | Integral quick forming method for ceramic parts based on paraffin |
| CN102531648A (en) * | 2011-12-26 | 2012-07-04 | 北京航空航天大学 | Calcium oxide-based ceramic core for casting titanium alloy and manufacturing method thereof |
| CN102815940A (en) * | 2012-08-29 | 2012-12-12 | 天津大学 | Calcium oxide and zirconium oxide composite ceramic core for niobium-silicon based alloy investment casting |
| CN102924062A (en) * | 2012-10-25 | 2013-02-13 | 北京航空航天大学 | Preparation method of calcium-oxide-based ceramic core |
| CN103639396A (en) * | 2013-11-29 | 2014-03-19 | 沈阳化工大学 | Method for producing metallic titanium and titanium alloy castings through ceramic molds |
| CN104070141A (en) * | 2014-05-24 | 2014-10-01 | 芜湖浙鑫新能源有限公司 | Rare earth coated and magnesium oxide based ceramic core |
| CN104446475A (en) * | 2013-09-18 | 2015-03-25 | 辽宁省轻工科学研究院 | Ceramic core for single-crystal casting |
| US20150239037A1 (en) * | 2012-10-25 | 2015-08-27 | Beihang University | Calcium oxide-based ceramic core and preparation method thereof |
| CN105693254A (en) * | 2016-02-03 | 2016-06-22 | 中国航空工业集团公司北京航空材料研究院 | Water-soluble ceramic core material and preparation method thereof |
| CN107021771A (en) * | 2017-04-26 | 2017-08-08 | 西安交通大学 | A kind of calcium oxide-based ceramic-mould manufacture method based on 3D printing technique |
| CN107745082A (en) * | 2017-09-01 | 2018-03-02 | 东风精密铸造安徽有限公司 | A kind of hot pressing note ceramic core and preparation method thereof |
| CN108178627A (en) * | 2016-12-08 | 2018-06-19 | 辽宁法库陶瓷工程技术研究中心 | A kind of preparation method of yttria-stabilized zirconia ceramic core |
| CN113020544A (en) * | 2021-03-08 | 2021-06-25 | 洛阳航辉新材料有限公司 | Preparation method of ceramic core for titanium alloy cast characters |
-
2005
- 2005-11-29 CN CN 200510047856 patent/CN1793033A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537473B (en) * | 2008-03-20 | 2011-12-28 | 上海市机械制造工艺研究所有限公司 | Ceramic core for silica sol precision casting and manufacturing process thereof |
| CN101550007B (en) * | 2009-04-28 | 2012-06-27 | 陕西科技大学 | Integral quick forming method for ceramic parts based on paraffin |
| CN102531648B (en) * | 2011-12-26 | 2013-09-11 | 北京航空航天大学 | Calcium oxide-based ceramic core for casting titanium alloy and manufacturing method thereof |
| CN102531648A (en) * | 2011-12-26 | 2012-07-04 | 北京航空航天大学 | Calcium oxide-based ceramic core for casting titanium alloy and manufacturing method thereof |
| CN102815940A (en) * | 2012-08-29 | 2012-12-12 | 天津大学 | Calcium oxide and zirconium oxide composite ceramic core for niobium-silicon based alloy investment casting |
| US20150239037A1 (en) * | 2012-10-25 | 2015-08-27 | Beihang University | Calcium oxide-based ceramic core and preparation method thereof |
| CN102924062B (en) * | 2012-10-25 | 2014-04-16 | 北京航空航天大学 | Preparation method of calcium-oxide-based ceramic core |
| CN102924062A (en) * | 2012-10-25 | 2013-02-13 | 北京航空航天大学 | Preparation method of calcium-oxide-based ceramic core |
| US9308579B2 (en) * | 2012-10-25 | 2016-04-12 | Beihang University | Calcium oxide-based ceramic core and preparation method thereof |
| CN104446475A (en) * | 2013-09-18 | 2015-03-25 | 辽宁省轻工科学研究院 | Ceramic core for single-crystal casting |
| CN103639396B (en) * | 2013-11-29 | 2017-01-04 | 沈阳化工大学 | Utilize the method that ceramic mould prepares Titanium and titanium alloy casting |
| CN103639396A (en) * | 2013-11-29 | 2014-03-19 | 沈阳化工大学 | Method for producing metallic titanium and titanium alloy castings through ceramic molds |
| CN104070141A (en) * | 2014-05-24 | 2014-10-01 | 芜湖浙鑫新能源有限公司 | Rare earth coated and magnesium oxide based ceramic core |
| CN105693254A (en) * | 2016-02-03 | 2016-06-22 | 中国航空工业集团公司北京航空材料研究院 | Water-soluble ceramic core material and preparation method thereof |
| CN105693254B (en) * | 2016-02-03 | 2018-03-09 | 中国航空工业集团公司北京航空材料研究院 | A kind of Water-soluble ceramic core material and the method for preparing Water-soluble ceramic core |
| CN108178627A (en) * | 2016-12-08 | 2018-06-19 | 辽宁法库陶瓷工程技术研究中心 | A kind of preparation method of yttria-stabilized zirconia ceramic core |
| CN107021771A (en) * | 2017-04-26 | 2017-08-08 | 西安交通大学 | A kind of calcium oxide-based ceramic-mould manufacture method based on 3D printing technique |
| CN107021771B (en) * | 2017-04-26 | 2021-01-19 | 西安交通大学 | Calcium oxide-based ceramic casting mold manufacturing method based on 3D printing technology |
| CN107745082A (en) * | 2017-09-01 | 2018-03-02 | 东风精密铸造安徽有限公司 | A kind of hot pressing note ceramic core and preparation method thereof |
| CN113020544A (en) * | 2021-03-08 | 2021-06-25 | 洛阳航辉新材料有限公司 | Preparation method of ceramic core for titanium alloy cast characters |
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