JPH0475744A - Slurry for producing casting mold for precision lost wax casting - Google Patents
Slurry for producing casting mold for precision lost wax castingInfo
- Publication number
- JPH0475744A JPH0475744A JP2189214A JP18921490A JPH0475744A JP H0475744 A JPH0475744 A JP H0475744A JP 2189214 A JP2189214 A JP 2189214A JP 18921490 A JP18921490 A JP 18921490A JP H0475744 A JPH0475744 A JP H0475744A
- Authority
- JP
- Japan
- Prior art keywords
- casting
- powder
- mold
- slurry
- lost wax
- 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
- 239000002002 slurry Substances 0.000 title claims abstract description 24
- 238000005495 investment casting Methods 0.000 title claims abstract description 16
- 238000005266 casting Methods 0.000 title abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 32
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 31
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 6
- 235000010216 calcium carbonate Nutrition 0.000 abstract description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 3
- 239000000920 calcium hydroxide Substances 0.000 abstract description 3
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 3
- 239000000292 calcium oxide Substances 0.000 abstract description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 2
- 235000012255 calcium oxide Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 244000044283 Toxicodendron succedaneum Species 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、耐火度が著（２く高く、特にＴｉおよびＴ
ｉ合金などの高融点金属の鋳造に用いた場合にも鋳肌の
きれいな鋳物を製造することができるロストワックス精
密鋳造鋳型を製造するのに用いられるスラリーに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention has a remarkable (2 high) fire resistance, especially Ti and T
The present invention relates to a slurry used for manufacturing lost wax precision casting molds that can produce castings with clean casting surfaces even when used for casting high melting point metals such as i-alloys.
従来、一般に、第１図に全体か模式図的に概略縦断面図
で示され、また、第２図にｔ部か同（７く拡大断面図で
示されているロストワックス精密鋳造鋳型Ｍか、Ｔｉお
よびＴｉ合金などの高融点金属の鋳造に用いられている
ことは良く知られるところである。Conventionally, in general, the entire lost wax precision casting mold M is shown schematically in FIG. It is well known that it is used for casting high melting point metals such as Ti, Ti and Ti alloys.
また、このロストワックス精密鋳造鋳型Ｍか、まず、鋳
型キャビテイ面１ａに相当する外面形状を有するワック
ス模型を、例えばコロイド状酸化ジルコニウム（以下Ｚ
ｒ ０２で示す）粉末を１０〜４０重量％含有し、か
つ塩酸でｐＨ：３〜５とした酸性水性ジルコニアゾルに
、１／９〜４／６の重；割合てＺ ｒ Ｏ２粉末を配合
し、混合１．てなるスラリーの中に浸漬し２、引上げて
粗粒のＺ ｒ ０２粉末を散布し、ついで乾燥Ｌ、この
スラリー浸漬、粉末散布、乾燥を１工程と１７、これを
２工程以上行なって内側層１を形成し、さらに同様にシ
リカ（以下Ｓ ＩＯ２で示す）系スラリー中への浸漬、
引上げ、粗粒粉末散布、および乾燥を１工程とし、これ
を２工程以上繰り返し行なって前記内側層上にバックア
ツプ層２を形成し、ついでオートクレーブ（圧力釜）内
で、脱ワツクスを行なった後、例えば大気中、１３００
℃に５時間保持の条件で焼成することにより製造される
ことも知られている。In addition, in this lost wax precision casting mold M, first, a wax model having an outer surface shape corresponding to the mold cavity surface 1a is made of, for example, colloidal zirconium oxide (hereinafter referred to as Z
ZrO2 powder is blended in an acidic aqueous zirconia sol containing 10 to 40% by weight of powder (denoted as R02) and adjusted to pH: 3 to 5 with hydrochloric acid at a ratio of 1/9 to 4/6 by weight. , Mixing 1. 2, pulled up and sprinkled with coarse Zr 02 powder, then dried L. This slurry immersion, powder scattering, and drying are performed in step 1 and step 17, and this is performed in two or more steps to form the inner layer. 1, and further immersed in a silica (hereinafter referred to as SIO2) based slurry,
Pulling, coarse powder scattering, and drying are one step, and these are repeated two or more steps to form a back-up layer 2 on the inner layer, and then dewaxed in an autoclave (pressure cooker). , e.g. in the atmosphere, 1300
It is also known that it can be produced by firing under conditions of holding at ℃ for 5 hours.
しかし、上記の従来ロストワックス精密鋳造鋳型に、Ｔ
ｉおよびＴｉ合金などの高融点金属を鋳造した場合、鋳
型、特に内側層の鋳型キャビテイ面の耐火度が十分でな
いために、鋳造温度が高いことと合まって、鋳肌が荒れ
るようになり、この結果リュータ−などによる鋳物表面
の平滑化が不可欠であるのが現状である。However, in the conventional lost wax precision casting mold mentioned above, T
When high melting point metals such as Ti and Ti alloys are cast, the mold, especially the inner layer mold cavity surface, does not have sufficient refractoriness, which, combined with the high casting temperature, causes the casting surface to become rough. As a result, it is currently essential to smooth the casting surface using a router or the like.
そこで、本発明者等は、上述のような観点から、鋳肌の
きれいな鋳物を製造することのできる耐火度の高いロス
トワックス精密鋳造鋳型を開発すべく研究を行なった結
果、ロストワックス精密鋳造鋳型の少なくとも内側層（
鋳型全体でもよい）の形成に用いられているスラリーを
、
コロイド状Ｚ ｒ Ｏ２粉末を１０〜４０重量％含有し
、かつアンモニアでｐＨ：９〜ＩＩとしたアルカリ性水
性ジルコニアゾルを、１／９〜４／Ｂの重量割合で、
Ｃａの酸化物、炭酸化物、および水酸化物（以下、それ
ぞれＣａｂ、ＣａＣＯ３，およびＣａ （ＯＨ） ２で
示す）のうちの１種または２種以上からなるＣａ化合物
粉末に配合し、混合してなるスラリーで構成し、同時に
散布される粗粒粉末も上記Ｃａ化合物粉末にすると、焼
成後Ｃａ化合物はＣａＯとなり、形成された内側層また
は鋳型全体の耐火度が著しく上昇し、これに鋳造された
鋳物の鋳肌は非常にきれいで、サンドブラスト処理や研
削程度で最終製品表面とすることができるという研究結
果を得たのである。Therefore, from the above-mentioned viewpoint, the present inventors conducted research to develop a lost wax precision casting mold with high fire resistance that can produce castings with a clean casting surface. At least the inner layer of (
The slurry used to form the mold (which may be the entire mold) is an alkaline aqueous zirconia sol containing 10 to 40% by weight of colloidal ZrO2 powder and adjusted to pH: 9 to II with ammonia. A Ca compound consisting of one or more of Ca oxides, carbonates, and hydroxides (hereinafter referred to as Cab, CaCO3, and Ca(OH)2, respectively) at a weight ratio of 4/B. If the above-mentioned Ca compound powder is used as the coarse powder that is mixed with the powder, and the coarse powder that is sprinkled at the same time is also the Ca compound powder, the Ca compound will become CaO after firing, and the refractory of the inner layer or the entire mold will be significantly improved. Research has shown that the surface of castings cast using this material is extremely clean, and that the surface of the final product can be made into a finished product by just sandblasting or grinding.
この発明は、上記研究結果にもとづいてなされたもので
あって、
コロイド状Ｚ ｒ Ｏ２粉末を１０〜４０重量％含有し
、かつアンモニアでｐＨ：９〜１１としたアルカリ性水
性ジルコニアゾルを、１／９〜４／６の重量割合で、
Ｃａｂ、ＣａＣ０およびＣａ（ＯＨ） ２のう３′
ちの１種または２種以上からなるＣａ化合物粉末に配合
し、混合してなるロストワックス精密鋳造鋳型製造用ス
ラリーに特徴を有するものである。This invention was made based on the above-mentioned research results, and the alkaline aqueous zirconia sol containing 10 to 40% by weight of colloidal ZrO2 powder and adjusted to pH 9 to 11 with ammonia was Lost wax precision casting mold manufacturing product prepared by blending and mixing Ca compound powder consisting of one or more of Cab, CaC0 and Ca(OH)2/3' in a weight ratio of 9 to 4/6. The slurry has characteristics.
なお、この発明のスラリーにおいて、アルカリ性水性ジ
ルコニアゾル中のコロイド状Ｚ ｒ ０２ 粉末の含有
量を１０〜４０重量％としたのは、その含有量が１０重
量％未満では十分な鋳型強度を確保することができず、
一方その含有量が４０Ｍ量％を越えるとＺ ｒ Ｏ２粉
末に凝集が生じるようになるという理由によるものであ
り、また同ジルコニアゾル中のｐＨを９〜１１と限定し
たのは、ｐＨが９未満ではＺ ｒ ０２粉末に凝集が起
り易く、一方、ｐＨが１１を越えると、相対的にアンモ
ニアの含有割合が多くなりすぎ、鋳型乾燥時にアンモニ
アの蒸発が原因の割れが発生し易くなるという理由から
であり、さらに同ジルコニアゾルのＣａ化合物粉末との
配合割合を重量割合で１／９〜４／６としたのは、その
割合が１７９未満では相対的にＺ ｒ ０２の含有割合
が少なくなりすぎて十分な鋳型強度を確保することがで
きず、一方その割合が４／６を越えると、相対的にＺ
ｒ Ｏ２が多くなりすぎ、反面Ｃａ化合物の含有割合が
少なくなりすぎて鋳型の耐火度が低下するようになると
いう理由にもとづくものである。In addition, in the slurry of this invention, the content of colloidal Z r 02 powder in the alkaline aqueous zirconia sol is set to 10 to 40% by weight because sufficient mold strength is ensured when the content is less than 10% by weight. I can't do it,
On the other hand, if the content exceeds 40 M%, agglomeration will occur in the ZrO2 powder, and the reason why the pH in the zirconia sol is limited to 9 to 11 is because the pH is less than 9. This is because agglomeration tends to occur in the Zr02 powder, and on the other hand, when the pH exceeds 11, the ammonia content becomes relatively too high, and cracks are likely to occur due to evaporation of ammonia during mold drying. Furthermore, the reason why the blending ratio of the same zirconia sol with the Ca compound powder was set to 1/9 to 4/6 in terms of weight ratio is that if the ratio is less than 179, the content ratio of Z r 02 will be relatively too small. On the other hand, if the ratio exceeds 4/6, the relative Z
This is based on the reason that if rO2 becomes too large, the content of Ca compounds becomes too low, and the fire resistance of the mold decreases.
つぎに、この発明のスラリーを実施例により具体的に説
明する。Next, the slurry of the present invention will be specifically explained using examples.
それぞれ第１表に示されるアルカリ性（ｐＨをアンモニ
アで調整）および酸性（ｐＨを塩酸で調ｇ１）の水性ジ
ルコニアゾル、並びにいずれも粒度が一３２５メツシュ
のＣａＯ粉末、ＣａＣＯ３粉末、Ｃａ（ＯＨ） 粉末
、およびＺ ｒ Ｏ２粉末を用意し、これらを同じく第
１表に示される割合に配合し、混合して本発明スラリー
１〜４および従来スラリー１〜４をそれぞれ調製し、さ
らに散布用粉末と１．て粒度： ２８−４２メツシユの
Ｃａ（ＯＩ（） ２粉末（本発明スラリー用）およびｚ
「０２粉末（従来スラリー用）を用意した。Alkaline (pH adjusted with ammonia) and acidic (pH adjusted with hydrochloric acid g1) aqueous zirconia sols shown in Table 1, as well as CaO powder, CaCO3 powder, and Ca(OH) powder, each with a particle size of 1325 mesh. , and Z r O2 powder were prepared, and these were blended in the proportions shown in Table 1, mixed to prepare slurries 1 to 4 of the present invention and conventional slurries 1 to 4, respectively. ．． Particle size: 28-42 mesh Ca(OI() 2 powder (for the slurry of the present invention) and z
``02 powder (for conventional slurry) was prepared.
つぎに、外径：５０肺Ｘ内径：４４ｍｍＸ肉〜゛：３關
の寸法をもったカップ状ワックスピースを１２個とりつ
けた長さ：４００ｍｍのワックスツリー苓用い、これに
上記の各種のスラリーにそれぞれ浸漬して引上げた後、
同じく上記のＣａ （ＯＨ） ２粉末またはＺ ｒ Ｏ
２粉末の散布を行ない、温度＝２３℃、湿度：４０〜５
０％の条件で３時間の乾燥を行なう工程を１工程とＬ２
、これを３工程繰り返１７行なうことにより厚さ二３關
の内側層を形成し、さらに引続いて、いずれもＡ１！２
０３系スラリー中に浸漬して引上げ、これにＡｌ２Ｏ３
粉末散布と、１．５時間の上記乾燥を施し１、ついてＺ
ｒ Ｏ２・Ｓ ｉ ０２系スラリー中への浸漬、引コ
ニげ、およびへβ２０３粉末の散布、１．５時間の上記
乾燥からなる工程を１工程と］７、これを３工程繰り返
し行なうことにより厚さ二６１のバックアツプ層を形成
した後、これを圧力釜内に装入１．て、温度：１５０℃
、圧力（水蒸気による加圧）＝８気圧の条件で脱ワツク
スを行ない、さらに大気中、温度： １３００℃に５時
間保持の条件で焼成を行なって、内側層形成に本発明ス
ラリー１〜４並びに従来スラリー１〜４をそれぞれ用い
た鋳型を製造した。Next, a wax tree with a length of 400 mm to which 12 cup-shaped wax pieces with dimensions of outer diameter: 50 mm x inner diameter: 44 mm x 3 mm were attached was used, and the various slurries mentioned above were added to the wax tree. After soaking and pulling up each
Also the above Ca (OH) 2 powder or Z r O
Sprinkle 2 powders, temperature = 23℃, humidity: 40-5
The process of drying for 3 hours under 0% conditions is 1 process and L2
, This process is repeated 17 times for 3 steps to form an inner layer with a thickness of 23 mm, and subsequently, both A1!2 layers are formed.
It is immersed in 03 system slurry and pulled up, and then Al2O3 is added to it.
Sprinkle powder and dry as above for 1.5 hours.
The process consisting of immersion in rO2・S i 02-based slurry, drying, sprinkling of β203 powder, and drying for 1.5 hours is considered to be 1 process]7, and by repeating this for 3 steps, the thickness is increased. After forming the back-up layer of the wafer 61, it is charged into a pressure cooker.1. Temperature: 150℃
Dewaxing was carried out under the conditions of pressure (pressurization by water vapor) = 8 atm, and further baking was carried out in the atmosphere at a temperature of 1300°C for 5 hours, and slurries 1 to 4 of the present invention and slurries 1 to 4 of the present invention were used to form the inner layer. Molds were manufactured using each of conventional slurries 1 to 4.
つぎに、この結果得られた鋳型に、焼成後、鋳型が２０
０℃に冷却された時点で、スカルアーク溶解法で溶解さ
れたＴｉ−６％Ａｐ−４％■のＴｉ合金を遠心鋳造によ
り鋳造し、得られた鋳物の表面粗さ（ＪＩＳ規格）を測
定した。この結果を第１表に示した。Next, after firing, the mold obtained as a result has a mold size of 20 mm.
When cooled to 0°C, the Ti alloy of Ti-6%Ap-4%■ melted by the skull arc melting method was cast by centrifugal casting, and the surface roughness (JIS standard) of the obtained casting was measured. did. The results are shown in Table 1.
第１表に示される結果から、本発明スラリーを用いれば
、従来スラリーを用いて製造されたロストワックス精密
鋳造鋳型に比して、特に内側層の耐火度か著しく高いロ
ストワックス精密鋳造鋳型を製造することができること
が明らかである。From the results shown in Table 1, if the slurry of the present invention is used, a lost wax precision casting mold can be produced which has significantly higher refractory properties, especially in the inner layer, than lost wax precision casting molds produced using conventional slurries. It is clear that it can be done.
上述のように、この発明のスラリーによれば、特に少な
くとも鋳型キャビティを構成する内側層の耐火度かきわ
めて高いロストワックス精密鋳造鋳型を製造することが
でき、したがってこれにＴｉおよびＴｉ合金などの高融
点金属を鋳造しても、鋳肌のきれいな鋳物を製造するこ
とができ、かつこのことは表面硬さ上昇の原因となる表
面酸化層の形成も少ないことを示すものであるから、鋳
物の健全性にも寄与するなど工業上有用な効果かもたら
されるのである。As described above, according to the slurry of the present invention, it is possible to produce a lost wax precision casting mold with extremely high refractory properties, especially at least the inner layer constituting the mold cavity, and therefore, it is possible to manufacture a lost wax precision casting mold with extremely high refractory properties, and therefore, to use the slurry, it is possible to manufacture a lost wax precision casting mold that has extremely high refractory properties, especially at least the inner layer constituting the mold cavity. Even when melting point metals are cast, castings with clean casting surfaces can be produced, and this indicates that there is little formation of a surface oxidation layer that causes an increase in surface hardness, so the soundness of the castings is maintained. It also brings about industrially useful effects such as contributing to performance.
第１図はロストワックス精密鋳造鋳型を模式図的に示す
概略縦断面図、第２図は同鋳型の要部拡大断面図である
。
Ｍ・・・ロストワックス精密鋳造鋳型、１・・・内側層
、 ２・・・バックアツプ層、１ａ・・・
鋳型キャビティ。FIG. 1 is a schematic vertical cross-sectional view schematically showing a lost wax precision casting mold, and FIG. 2 is an enlarged cross-sectional view of a main part of the mold. M... Lost wax precision casting mold, 1... Inner layer, 2... Backup layer, 1a...
mold cavity.
Claims (1)
量％含有し、かつアンモニアでｐＨ：９〜１１としたア
ルカリ性水性ジルコニアゾルを、１／９〜４／６の重量
割合で、 Ｃａの酸化物、炭酸化物、および水酸化物のうちの１種
または２種以上からなるＣａ化合物粉末に配合し、混合
してなるロストワックス精密鋳造鋳型製造用スラリー。(1) An alkaline aqueous zirconia sol containing 10 to 40% by weight of colloidal zirconium oxide powder and adjusted to pH 9 to 11 with ammonia in a weight ratio of 1/9 to 4/6, Ca oxide, A slurry for manufacturing a lost wax precision casting mold, which is prepared by blending and mixing Ca compound powder consisting of one or more of carbonates and hydroxides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2189214A JPH0475744A (en) | 1990-07-17 | 1990-07-17 | Slurry for producing casting mold for precision lost wax casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2189214A JPH0475744A (en) | 1990-07-17 | 1990-07-17 | Slurry for producing casting mold for precision lost wax casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0475744A true JPH0475744A (en) | 1992-03-10 |
Family
ID=16237465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2189214A Pending JPH0475744A (en) | 1990-07-17 | 1990-07-17 | Slurry for producing casting mold for precision lost wax casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0475744A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2696445A1 (en) * | 1992-10-01 | 1994-04-08 | Rennes Inst Nal Sciences Appli | Composition for obtaining products based on pure lime, application of this composition and process for its implementation. |
| JP2015171723A (en) * | 2014-03-12 | 2015-10-01 | 三菱重工業株式会社 | Casting mold manufacturing method, slurry for forming casting mold, and casting mold |
-
1990
- 1990-07-17 JP JP2189214A patent/JPH0475744A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2696445A1 (en) * | 1992-10-01 | 1994-04-08 | Rennes Inst Nal Sciences Appli | Composition for obtaining products based on pure lime, application of this composition and process for its implementation. |
| EP0592275A1 (en) * | 1992-10-01 | 1994-04-13 | Institut National Des Sciences Appliquees De Rennes | Compostion for the preparation of products based on pure lime, use of this composition and method of application |
| JP2015171723A (en) * | 2014-03-12 | 2015-10-01 | 三菱重工業株式会社 | Casting mold manufacturing method, slurry for forming casting mold, and casting mold |
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