JPH07238302A - Sintered titanium filter and production thereof - Google Patents
Sintered titanium filter and production thereofInfo
- Publication number
- JPH07238302A JPH07238302A JP5114094A JP5114094A JPH07238302A JP H07238302 A JPH07238302 A JP H07238302A JP 5114094 A JP5114094 A JP 5114094A JP 5114094 A JP5114094 A JP 5114094A JP H07238302 A JPH07238302 A JP H07238302A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- filter medium
- titanium
- sponge
- powder
- 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
Landscapes
- Filtering Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、焼結チタンフィルタ−
及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sintered titanium filter
And a manufacturing method thereof.
【０００２】[0002]
【従来の技術】従来、黄銅系、ステンレス系及びセラミ
ックス系の焼結フィルタ−が知られていた。また、金属
チタン粉末を焼結するチタンフィルタ−も提案されてい
た。2. Description of the Related Art Heretofore, brass, stainless and ceramic sintered filters have been known. Further, a titanium filter for sintering metal titanium powder has also been proposed.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の黄銅系及び
ステンレス系の焼結フィルタ−は、耐腐食性及び耐酸化
性はかなり優れているが、まだ十分ではなかった。ま
た、セラミックス系の焼結フィルタ−は、耐腐食性及び
耐酸化性は優れているが、使用中に微量に混在している
鉄などの金属が溶出するという問題点があった。さら
に、金属チタンの粉末を焼結したチタンフィルタ−は、
上記問題点は解消されているが、高価であるという問題
点があった。本発明は、耐腐食性及び耐酸化性が優れ、
鉄などの金属が溶出することがなく、しかも安価な焼結
フィルタ−を提供することを目的としている。The conventional brass-type and stainless-type sintered filters described above have considerably excellent corrosion resistance and oxidation resistance, but they have not been sufficient yet. Further, although the ceramic sintered filter is excellent in corrosion resistance and oxidation resistance, there is a problem that a small amount of metal such as iron is eluted during use. Furthermore, the titanium filter obtained by sintering powder of metallic titanium is
Although the above problem has been solved, there is a problem that it is expensive. The present invention has excellent corrosion resistance and oxidation resistance,
It is an object of the present invention to provide an inexpensive sintered filter in which metals such as iron do not elute and which is inexpensive.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本発明のフィルタ−においては、スポンジチタン若
しくはスポンジチタンの粉末又はこれらにタンタル、ジ
ルコニュウム、バナジウムなどの金属の粉末を１種又は
２種以上加えて焼結することである。さらに詳細に説明
すると、適当な大きさ、好ましくは１〜３００μｍのス
ポンジチタン若しくはスポンジチタンの粉末、又はこれ
らにタンタル、ジルコニュウム、バナジウムなどの金属
の粉末を１種又は２種以上加えて金型に入れ、必要なら
ば、フィルタ−の穴径を所定の大きさにするために低融
点の非金属物質又はＳｎ、Ｚｎ、Ｐｂ、Ａｌなどの低融
点金属の粉末を加えて５０〜２，０００Ｋｇ／ｃｍ2 で
圧縮して成形し、その後この圧縮成型体を真空中又はＡ
ｒ、Ｈｅ、Ｎなどの不活性ガス中において８００〜１６
００℃で１０分〜２時間加熱して焼結することである。In order to achieve the above object, in the filter of the present invention, titanium sponge or titanium sponge powder or powder of metal such as tantalum, zirconium, vanadium, etc. is used in one kind or in two kinds. It is to add more than one kind and sinter. More specifically, a sponge titanium powder or a sponge titanium powder having an appropriate size, preferably 1 to 300 μm, or one or more kinds of metal powders such as tantalum, zirconium, and vanadium is added to a mold. If necessary, a low-melting point non-metal substance or a low-melting point metal powder such as Sn, Zn, Pb, or Al is added to obtain a filter having a predetermined hole diameter. It is compressed by cm 2 to be molded, and then this compression molded body is placed in a vacuum or
800 to 16 in an inert gas such as r, He or N
It is to sinter by heating at 00 ° C. for 10 minutes to 2 hours.
【０００５】[0005]
【作用】本発明の焼結チタンフィルタ−は、焼結材料と
してスポンジチタン若しくはスポンジチタンの粉末又は
これらにタンタル、ジルコニュウム、バナジウムなどの
金属の粉末を１種又は２種以上加えて焼結しているの
で、耐蝕性が優れ、しかもスポンジチタンを使用して製
造しているので、非常に安価である。The sintered titanium filter of the present invention is obtained by adding sponge titanium or sponge titanium powder as a sintering material, or one or more kinds of metal powders such as tantalum, zirconium and vanadium to these and sintering them. Since it has excellent corrosion resistance and is manufactured using titanium sponge, it is very inexpensive.
【０００６】[0006]
【実施例】以下、本発明の実施例について説明する。 実施例１ スポンジチタンを粉砕して得た粒径１５０μｍの粉末Ａ
を図２に示す内径１７ｍｍの型具（３）の間隙（６）に
一定量充填し、上型具（２）で２，２００Ｋｇ（１，０
００Ｋｇ／ｃｍ2 ）でプレスした。この圧縮成型体を真
空中（１０-4ｍｍＨｇ）において１，４００℃で３０分
間焼結して図１で示したような外径１７ｍｍ、厚さ３ｍ
ｍの円盤状の濾材（本発明は、「フィルタ−」である
が、実施例で製造したものはフィルタ−の材料である濾
材であるので、実施例の説明では「濾材」とした。）を
得た。 実施例２ スポンジチタンを粉砕して得た粉末の粒径を１２０μｍ
にしたこと以外の条件を実施例１と同じにして焼結した
ところ、外径１７ｍｍ、厚さ３ｍｍの円盤状の濾材を得
た。EXAMPLES Examples of the present invention will be described below. Example 1 Powder A having a particle size of 150 μm obtained by crushing titanium sponge
2 is filled with a certain amount into the gap (6) of the tool (3) having an inner diameter of 17 mm shown in FIG.
It was pressed at 00 Kg / cm 2 ). This compression molded body was sintered in vacuum (10 −4 mmHg) at 1,400 ° C. for 30 minutes to give an outer diameter of 17 mm and a thickness of 3 m as shown in FIG.
A disk-shaped filter material of m (the present invention is a “filter”, but since the one manufactured in the example is the filter material that is the material of the filter, it is referred to as a “filter material” in the description of the examples). Obtained. Example 2 The particle size of the powder obtained by crushing titanium sponge was 120 μm.
Sintering was performed under the same conditions as in Example 1 except that the conditions were changed to 1 to obtain a disk-shaped filter medium having an outer diameter of 17 mm and a thickness of 3 mm.
【０００７】実施例３ スポンジチタンを粉砕して得た粉末の粒径を１００μｍ
にしたこと以外の条件を実施例１と同じにして焼結した
ところ、外径１７ｍｍ、厚さ３ｍｍの円盤状の濾材を得
た。 比較例１ アトマイズ法で製造したＳＵＳ３１６ステンレスの粒径
８０μｍの粉末を図２に示す内径１２ｍｍの型具（３）
の間隙（６）に一定量充填し、上型具（２）で１，２０
０Ｋｇ（１，０００Ｋｇ／ｃｍ2 ）でプレスした。この
圧縮成型体を真空中において１２００℃で３０分間焼結
して図１に示したような外径１２ｍｍ、厚さ３ｍｍで
１．０５ｇの円盤状の濾材を得た。Example 3 The particle size of the powder obtained by crushing titanium sponge was 100 μm.
Sintering was performed under the same conditions as in Example 1 except that the conditions were changed to 1 to obtain a disk-shaped filter medium having an outer diameter of 17 mm and a thickness of 3 mm. Comparative Example 1 A mold (3) having an inner diameter of 12 mm shown in FIG.
Fill the gap (6) with a certain amount, and use the upper mold tool (2) for 1,20
It was pressed at 0 kg (1,000 kg / cm 2 ). This compression molded body was sintered in vacuum at 1200 ° C. for 30 minutes to obtain a disc-shaped filter medium having an outer diameter of 12 mm and a thickness of 3 mm and 1.05 g as shown in FIG.
【０００８】次に、実施例１〜３で製造した濾材及び比
較例１で製造した濾材の特性について説明する。 （１）表面組織の比較 実施例１〜３の濾材及び比較例の濾材の表面組織は図３
〜５の写真のとおりである。図３は、実施例１〜３の濾
材及び比較例の濾材の外観を写した写真で、この写真の
１は実施例１の濾材、２は実施例２の濾材、３は実施例
３の濾材であり、また０は比較例の濾材である。図４
は、実施例１の濾材の表面組織を２０倍に拡大した写真
であり、また図５は、比較例の濾材の表面組織を２０倍
に拡大した写真である。これらの写真を見ると、実施例
１の濾材は、各スポンジチタンの微粉末が互いに接触点
において金属間拡散により接合された多数の均一で微細
な空隙を有する強固な焼結体となっており、比較例の濾
材に比べても微細であり、濾材として適していることが
分かる。Next, the characteristics of the filter media manufactured in Examples 1 to 3 and the filter media manufactured in Comparative Example 1 will be described. (1) Comparison of Surface Textures The surface textures of the filter media of Examples 1 to 3 and the filter media of Comparative Example are shown in FIG.
It is as shown in the photographs of ~ 5. FIG. 3 is a photograph showing the appearance of the filter medium of Examples 1 to 3 and the filter medium of Comparative Example. In this photograph, 1 is the filter medium of Example 1, 2 is the filter medium of Example 2, and 3 is the filter medium of Example 3. And 0 is the filter medium of the comparative example. Figure 4
5 is a photograph in which the surface texture of the filter medium of Example 1 is magnified 20 times, and FIG. 5 is a photograph in which the surface texture of the filter medium of Comparative Example is magnified 20 times. As seen from these photographs, the filter medium of Example 1 is a strong sintered body having a large number of uniform and fine voids in which the fine powders of titanium sponge are bonded to each other at the contact points by intermetallic diffusion. As compared with the filter medium of the comparative example, it is finer and suitable for the filter medium.
【０００９】（２）濾過特性 （イ）空隙率 実施例１の濾材は空隙率５６％で比較例の濾材の空隙率
４１％に比較して１５％上回っている。 （ロ）圧力損失 濾材にかかる圧力損失を蒸留水の透過による圧力降下と
流量率について測定した結果を図９に示した。これを見
ても実施例１の濾材は比較例の濾材に比べて低圧損であ
ることが分かる。(2) Filtration characteristics (a) Porosity The filter material of Example 1 has a porosity of 56%, which is 15% higher than the porosity of the comparative filter material of 41%. (B) Pressure loss The results of measuring the pressure loss applied to the filter medium with respect to the pressure drop due to the permeation of distilled water and the flow rate are shown in FIG. From this, it can be seen that the filter medium of Example 1 has a lower pressure loss than the filter medium of Comparative Example.
【００１０】（３）腐触試験 腐触試験として、実施例１〜３の濾材及び比較例の濾材
を３０％の王水の中に３０分間浸けた。この王水に浸け
た濾材の外観及び表面組織を図６〜８の写真で示す。図
６は、実施例１〜３の濾材及び比較例の濾材の外観を写
した写真で、この写真の１は実施例１の濾材、２は実施
例２の濾材、３は実施例３の濾材であり、０は比較例の
濾材である。図７の写真は、実施例１の濾材の表面組織
を２０倍に拡大した写真で、また図８は、比較例の濾材
の表面組織を２０倍に拡大した写真である。実施例１〜
３の濾材は外観及び表面に全く変化がなく、重量の減少
も全くなかった。これに対して、比較例の濾材は、表面
が変色し、重量も０．３１ｇ減少しおり、ステンレス濾
材の特徴である耐酸性において実施例１の濾材より著し
く劣っていた。以上述べたように、本発明の実施例１の
濾材は、濾過特性及び耐蝕性において比較例のステンレ
ス濾材より優れていることが分かる。(3) Corrosion Test As a corrosion test, the filter media of Examples 1 to 3 and the filter media of Comparative Example were immersed in 30% aqua regia for 30 minutes. The appearance and surface texture of the filter medium dipped in this aqua regia are shown in the photographs of FIGS. FIG. 6 is a photograph showing the appearance of the filter medium of Examples 1 to 3 and the filter medium of Comparative Example. In this photograph, 1 is the filter medium of Example 1, 2 is the filter medium of Example 2, and 3 is the filter medium of Example 3. And 0 is the filter medium of the comparative example. The photograph of FIG. 7 is a photograph in which the surface texture of the filter medium of Example 1 is magnified 20 times, and FIG. 8 is a photograph in which the surface texture of the filter medium of Comparative Example is magnified 20 times. Example 1
The filter medium of No. 3 had no change in appearance and surface, and did not lose weight at all. On the other hand, the filter medium of Comparative Example had a discolored surface and a weight loss of 0.31 g, and was significantly inferior to the filter medium of Example 1 in the acid resistance characteristic of the stainless steel filter medium. As described above, it is understood that the filter medium of Example 1 of the present invention is superior to the stainless steel filter medium of Comparative Example in filtering characteristics and corrosion resistance.
【００１１】上記実施例では、円盤状濾材について述べ
たが、筒状濾材など他の形状の濾材も同様な方法で製造
することができる。また、上記実施例では焼結を圧縮成
型した後加熱して行っているが、圧縮成型と加熱を同時
にして行うこともできる。さらに、上記実施例では、粉
末の前処理をしていないが、バレル研磨、ミルなどの機
械処理又は酸処理によって球状化処理すること、また酸
などによって鉄などの不純物を除去することもできる。
さらにまた、上記実施例では、焼結後に処理をしていな
いが、酸化性ガス、窒化性ガス、還元性ガス、炭化性ガ
ス及びこれらのガスの混合ガスのうちのいずれか１種の
ガス中で処理して酸化、窒化、炭化、還元、炭化などの
表面処理をすること、また酸処理によって穴を大きくし
たり、穴の内面を平滑にしたりすることもできる。本発
明は、上記以外の点においても実施例に限定されること
なく、要旨を変更しない範囲において種々の変更をする
ことが出来ることは明らかである。Although the disk-shaped filter medium is described in the above embodiment, a filter medium having another shape such as a tubular filter medium can be manufactured by the same method. Further, in the above embodiment, the sintering is performed by compression molding and then heating, but it is also possible to perform compression molding and heating simultaneously. Furthermore, although the powder is not pretreated in the above-mentioned examples, it is also possible to perform spheroidizing treatment by a mechanical treatment such as barrel polishing, a mill or the like or an acid treatment, and impurities such as iron can be removed by an acid or the like.
Furthermore, in the above-mentioned embodiment, although no treatment is performed after sintering, in any one gas of an oxidizing gas, a nitriding gas, a reducing gas, a carbonizing gas and a mixed gas of these gases. Can be used to perform surface treatment such as oxidation, nitriding, carbonization, reduction, carbonization, etc., or the acid treatment can be used to enlarge the hole or smooth the inner surface of the hole. It is obvious that the present invention is not limited to the examples in other points than the above, and various changes can be made without changing the gist.
【００１２】[0012]
【本発明の効果】本発明は、スポンジチタンを焼結して
フィルタ−を製造したので、耐蝕性及び耐酸化性が著し
く優れ、また安価であるという優れた効果を奏する。INDUSTRIAL APPLICABILITY According to the present invention, since a sponge titanium is sintered to manufacture a filter, the corrosion resistance and the oxidation resistance are remarkably excellent and the cost is low.
【図１】本発明の濾材の一例を示す斜視図である。FIG. 1 is a perspective view showing an example of a filter medium of the present invention.
【図２】本発明の濾材を成形するために使用した金型の
断面図である。FIG. 2 is a cross-sectional view of a mold used to mold the filter medium of the present invention.
【図３】本発明の実施例１〜３及び比較例で製造した濾
材の外観写真である。FIG. 3 is an external appearance photograph of the filter media produced in Examples 1 to 3 of the present invention and Comparative Example.
【図４】本発明の実施例１で製造した濾材の表面を拡大
した写真である。FIG. 4 is an enlarged photograph of the surface of the filter medium manufactured in Example 1 of the present invention.
【図５】比較例で製造した濾材の表面を拡大した写真で
ある。FIG. 5 is an enlarged photograph of the surface of a filter medium manufactured in a comparative example.
【図６】本発明の実施例１〜３及び比較例で製造した濾
材を王水で腐食試験したものの外観写真である。FIG. 6 is a photograph of the appearance of the filter media produced in Examples 1 to 3 and Comparative Example of the present invention, which were subjected to a corrosion test with aqua regia.
【図７】本発明の実施例１で製造した濾材を王水で腐食
試験したものの表面を拡大した写真である。FIG. 7 is an enlarged photograph of the surface of the filter medium produced in Example 1 of the present invention, which was subjected to a corrosion test with aqua regia.
【図８】比較例で製造した濾材を王水で腐食試験したも
のの表面を拡大した写真である。FIG. 8 is an enlarged photograph of the surface of a filter medium produced in Comparative Example, which was subjected to a corrosion test with aqua regia.
【図９】本発明の実施例１及び比較例で製造した濾材の
透過特性を示す図面である。FIG. 9 is a drawing showing the permeation characteristics of the filter media produced in Example 1 and Comparative Example of the present invention.
２ 上型具 ３ 型具 ４ 下型具 ５ 型台 ６ 間隙 2 Upper mold tool 3 Mold tool 4 Lower mold tool 5 Mold stand 6 Gap
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【手続補正書】[Procedure amendment]
【提出日】平成６年７月５日[Submission date] July 5, 1994
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００８】 次に、実施例１〜３で製造した濾材及び
比較例で製造した濾材の特性について説明する。 （１）表面組織の比較 実施例１〜３の濾材及び比較例の濾材の外観は図３のと
おりであり、また実施例１の濾材及び比較例の濾材の組
織はそれぞれ図４及び図５の写真のとおりである。図３
中の（１）は実施例１の濾材、（２）は実施例２の濾
材、（３）は実施例３の濾材、及び（４）は比較例の濾
材の外観である。図４は実施例１の濾材の組織を２０倍
に拡大した写真であり、また図５は比較例の濾材の組織
を２０倍に拡大した写真である。これらの図面及び写真
を見ると、実施例１の濾材は、各スポンジチタンの微粉
末が互いに接触点において金属間拡散により接合された
多数の均一で微細な空隙を有する強固な焼結体となって
おり、比較例の濾材に比べても空隙が微細であり、濾材
として適していることが分かる。Next, characteristics of the filter media manufactured in Examples 1 to 3 and the filter media manufactured in Comparative Example will be described. (1) Comparison of Surface Textures The appearances of the filter media of Examples 1 to 3 and the filter media of Comparative Example are as shown in FIG. 3, and the textures of the filter media of Example 1 and Comparative Example are as shown in FIGS. 4 and 5, respectively. As shown in the picture. Figure 3
(1) is the filter medium of Example 1, (2) is the filter medium of Example 2, (3) is the filter medium of Example 3, and (4) is the filter medium of Comparative Example. FIG. 4 is a photograph in which the structure of the filter medium of Example 1 is magnified 20 times, and FIG. 5 is a photograph in which the structure of the filter medium of Comparative Example is magnified 20 times. Looking at these drawings and photographs, the filter medium of Example 1 is a strong sintered body having a large number of uniform and fine voids in which the fine powders of titanium sponge are bonded to each other at the contact points by intermetallic diffusion. It can be seen that the voids are finer than the filter medium of the comparative example and are suitable as the filter medium.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１０】 （３）腐食試験 腐食試験として、実施例１〜３の濾材及び比較例の濾材
を３０％の王水の中に３０分間浸けた。この王水に浸け
た濾材の外観は図６のとおりであり、また実施例１の濾
材及び比較例の濾材の組織はそれぞれ図７及び図８の写
真のとおりである。図６中の（１）は実施例１の濾材、
（２）は実施例２の濾材、（３）は実施例３の濾材、及
び（４）は比較例の濾材の外観である。図７は実施例１
の濾材の組織を２０倍に拡大した写真であり、また図８
は比較例の濾材の組織を２０倍に拡大した写真である。
実施例１〜３の濾材は外観及び表面に変化がなく、重量
の減少も全くなかった。これに対して、比較例の濾材
は、変形すると共に表面が変色し、重量も０．３１ｇ減
少しており、ステンレス濾材の特徴である耐酸性におい
て実施例１の濾材より著しく劣っていた。以上述べたよ
うに、本発明の実施例１の濾材は、濾過特性及び耐蝕性
において比較例のステンレス濾材より優れていることが
分かる。(3) Corrosion Test As a corrosion test, the filter media of Examples 1 to 3 and the filter media of Comparative Example were immersed in 30% aqua regia for 30 minutes. The appearance of the filter medium soaked in aqua regia is as shown in FIG. 6, and the structures of the filter medium of Example 1 and the filter medium of Comparative Example are as shown in the photographs of FIGS. 7 and 8, respectively. (1) in FIG. 6 is the filter medium of Example 1,
(2) is the filter medium of Example 2, (3) is the filter medium of Example 3, and (4) is the filter medium of Comparative Example. FIG. 7 shows Example 1.
8 is a photograph in which the structure of the filter medium of FIG.
[Fig. 4] is a photograph in which the structure of the filter medium of Comparative Example is magnified 20 times.
The filter media of Examples 1 to 3 had no change in appearance and surface, and did not lose weight at all. On the other hand, the filter medium of the comparative example was deformed, the surface was discolored, and the weight was reduced by 0.31 g, which was significantly inferior to the filter medium of Example 1 in the acid resistance characteristic of the stainless steel filter medium. As described above, it is understood that the filter medium of Example 1 of the present invention is superior to the stainless steel filter medium of Comparative Example in filtering characteristics and corrosion resistance.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】 本発明の濾材の一例を示す斜視図である。FIG. 1 is a perspective view showing an example of a filter medium of the present invention.
【図２】 本発明の濾材を成形するために使用した金型
の断面図である。FIG. 2 is a cross-sectional view of a mold used to mold the filter medium of the present invention.
【図３】 本発明の実施例１〜３及び比較例で製造した
濾材の外観斜視図である。FIG. 3 is an external perspective view of filter media manufactured in Examples 1 to 3 and Comparative Example of the present invention.
【図４】 本発明の実施例１で製造した濾材の金属組織
の写真である。FIG. 4 is a photograph of the metal structure of the filter medium produced in Example 1 of the present invention.
【図５】 本発明の比較例で製造した濾材の金属組織の
写真である。FIG. 5 is a photograph of a metal structure of a filter medium manufactured in a comparative example of the present invention.
【図６】 本発明の実施例１〜３及び比較例で製造した
濾材を王水で腐食試験したものの外観斜視図である。FIG. 6 is an external perspective view of the filter media produced in Examples 1 to 3 and Comparative Example of the present invention, which were subjected to a corrosion test with aqua regia.
【図７】 本発明の実施例１で製造した濾材を王水で腐
食試験したものの金属組織の写真である。FIG. 7 is a photograph of the metal structure of the filter medium produced in Example 1 of the present invention, which was subjected to a corrosion test with aqua regia.
【図８】 本発明の比較例で製造した濾材を王水で腐食
試験したものの金属組織の写真である。FIG. 8 is a photograph of a metal structure of a filter medium produced in a comparative example of the present invention, which was subjected to a corrosion test with aqua regia.
【図９】 本発明の実施例１及び比較例で製造した濾材
の透過特性を示す図面である。FIG. 9 is a drawing showing the permeation characteristics of the filter media produced in Example 1 and Comparative Example of the present invention.
【符号の説明】 ２ 上型具 ３ 型具 ４ 下型具 ５ 型台 ６ 間隙[Explanation of symbols] 2 upper mold tool 3 mold tool 4 lower mold tool 5 mold stand 6 gap
【手続補正４】[Procedure amendment 4]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図３[Name of item to be corrected] Figure 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図３】 [Figure 3]
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図６[Name of item to be corrected] Figure 6
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図６】 [Figure 6]
Claims (8)
する焼結チタンフィルタ−。1. A sintered titanium filter characterized in that sponge titanium is sintered.
を加えて焼結したことを特徴とする焼結チタンフィルタ
−。2. A sintered titanium filter comprising a sponge titanium and a metal powder other than titanium added thereto and sintered.
ュウム及びバナジウムの１種又は２種以上であることを
特徴とする請求項２記載の焼結チタンフィルタ−。3. The sintered titanium filter according to claim 2, wherein the metal other than titanium is one or more of tantalum, zirconium and vanadium.
あることを特徴とする請求項１、請求項２又は請求項３
記載の焼結チタンフィルタ−。4. The sponge titanium is a sponge titanium powder, and the sponge titanium is powder.
Sintered titanium filter described.
する焼結チタンフィルタ−の製造方法。5. A method for producing a sintered titanium filter, which comprises sintering titanium sponge.
を加えて焼結することを特徴とする焼結チタンフィルタ
−の製造方法。6. A method for producing a sintered titanium filter, which comprises adding metal powder other than titanium to sponge titanium and sintering.
ュウム及びバナジウムの１種又は２種以上であることを
特徴とする請求項６記載の焼結チタンフィルタ−の製造
方法。7. The method for producing a sintered titanium filter according to claim 6, wherein the metal other than titanium is one or more of tantalum, zirconium and vanadium.
であることを特徴とする請求項５、請求項６又は請求項
７記載の焼結チタンフィルタ−の製造方法。8. The method for producing a sintered titanium filter according to claim 5, wherein the titanium sponge is a titanium sponge powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5114094A JPH07238302A (en) | 1994-02-25 | 1994-02-25 | Sintered titanium filter and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5114094A JPH07238302A (en) | 1994-02-25 | 1994-02-25 | Sintered titanium filter and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07238302A true JPH07238302A (en) | 1995-09-12 |
Family
ID=12878523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5114094A Pending JPH07238302A (en) | 1994-02-25 | 1994-02-25 | Sintered titanium filter and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07238302A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002064293A1 (en) * | 2001-02-16 | 2002-08-22 | Sumitomo Titanium Corporation | Titanium powder sintered compact |
| FR2837111A1 (en) * | 2002-03-14 | 2003-09-19 | Boeing Co | Hard alpha inclusion filtering system for biomedical industries, has filter made of porous surface placed between vessel and receptacle to filter alpha particles from molten metal to enter receptacle |
| JP2005524766A (en) * | 2002-05-03 | 2005-08-18 | シュティヒティン・エネルギーオンデルツォイク・セントラム・ネーデルランド | Method for producing porous titanium material article |
| CN100457333C (en) * | 2007-04-29 | 2009-02-04 | 西北有色金属研究院 | Method of producing porous metal thin titanium board |
| JP2019094547A (en) * | 2017-11-27 | 2019-06-20 | 日本製鉄株式会社 | Three-dimensional laminate molding false sponge titanium, manufacturing method therefor, and aggregate thereof |
-
1994
- 1994-02-25 JP JP5114094A patent/JPH07238302A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002064293A1 (en) * | 2001-02-16 | 2002-08-22 | Sumitomo Titanium Corporation | Titanium powder sintered compact |
| CN100439013C (en) * | 2001-02-16 | 2008-12-03 | 株式会社大阪钛技术 | Titanium powder sintered compact |
| FR2837111A1 (en) * | 2002-03-14 | 2003-09-19 | Boeing Co | Hard alpha inclusion filtering system for biomedical industries, has filter made of porous surface placed between vessel and receptacle to filter alpha particles from molten metal to enter receptacle |
| JP2005524766A (en) * | 2002-05-03 | 2005-08-18 | シュティヒティン・エネルギーオンデルツォイク・セントラム・ネーデルランド | Method for producing porous titanium material article |
| CN100457333C (en) * | 2007-04-29 | 2009-02-04 | 西北有色金属研究院 | Method of producing porous metal thin titanium board |
| JP2019094547A (en) * | 2017-11-27 | 2019-06-20 | 日本製鉄株式会社 | Three-dimensional laminate molding false sponge titanium, manufacturing method therefor, and aggregate thereof |
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