JPH04116104A - Production of molded body for sintering and sintered parts - Google Patents
Production of molded body for sintering and sintered partsInfo
- Publication number
- JPH04116104A JPH04116104A JP23753690A JP23753690A JPH04116104A JP H04116104 A JPH04116104 A JP H04116104A JP 23753690 A JP23753690 A JP 23753690A JP 23753690 A JP23753690 A JP 23753690A JP H04116104 A JPH04116104 A JP H04116104A
- Authority
- JP
- Japan
- Prior art keywords
- molded body
- sublimable substance
- binder
- sintering
- degreasing
- 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
- 238000005245 sintering Methods 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000126 substance Substances 0.000 claims abstract description 24
- 239000011230 binding agent Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000005238 degreasing Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000009489 vacuum treatment Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 abstract description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract description 4
- 229940117389 dichlorobenzene Drugs 0.000 abstract description 4
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 abstract description 3
- 241000723346 Cinnamomum camphora Species 0.000 abstract description 3
- 229960000846 camphor Drugs 0.000 abstract description 3
- 229930008380 camphor Natural products 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 229940075566 naphthalene Drugs 0.000 abstract description 2
- 230000008022 sublimation Effects 0.000 abstract 1
- 238000000859 sublimation Methods 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 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
- 238000005495 investment casting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- LPSXSORODABQKT-UHFFFAOYSA-N tetrahydrodicyclopentadiene Chemical compound C1C2CCC1C1C2CCC1 LPSXSORODABQKT-UHFFFAOYSA-N 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、金属粉末を射出成形法、押し出し成形法等に
より成形し、得られた焼結用成形体を加熱焼結して焼結
物品を得る粉末冶金技術に関し、特に形成される成形体
および焼結物品の製造方法に関するものである。Detailed Description of the Invention [Industrial Application Field] The present invention is directed to molding metal powder by an injection molding method, an extrusion molding method, etc., and heating and sintering the obtained molded body for sintering to produce a sintered article. The present invention relates to powder metallurgy techniques for obtaining powder metallurgy, and in particular to methods for producing formed bodies and sintered articles.
従来、粉末を焼結し、様々な形状を得る方法では、プレ
ス成形、押し出し成形法や射出成形法が知られている。Conventionally, press molding, extrusion molding, and injection molding are known as methods for sintering powder to obtain various shapes.
このなかでも射出成形法は３次元的複雑形状が容易に成
形可能で、従来、精密鋳造法や機械加工法で生産されて
きた小重量の製品は、低コストで大量生産が可能なため
、近年金属粉末、セラミックス粉末を問わず発展してき
ている。このような状況下で、バインダを除去する工程
いわゆる脱脂工程が必要な成形法では、脱脂工程でバイ
ンダの膨張による成形体の破損の防止、あるいは焼結温
度まで成形体の形状保持を可能とするなどの目的で、多
種多様なバインダを組み合わせて使用している。Among these methods, injection molding can easily mold three-dimensional complex shapes, and in recent years, small-weight products that were traditionally produced by precision casting or machining can be mass-produced at low cost. Both metal powder and ceramic powder are being developed. Under these circumstances, in molding methods that require a process to remove the binder, a so-called debinding process, the debinding process can prevent breakage of the molded body due to expansion of the binder or maintain the shape of the molded body up to the sintering temperature. A wide variety of binders are used in combination for various purposes.
この目的に適するバインダとしては、加熱減量の順に、
２００°Ｃまでに９０％以上減量してしまうジエチルツ
クレート（以下ＤＥＰと称する）、ジブチルフタレート
、２５０°Ｃまでに９０％以上減量してしまうパラフィ
ンワックス（以下ＰＷと称する）、ステアリン酸、３０
０°Ｃまでに９０％以上減量してしまうポリブチルメタ
アクリレート、ポリスチレン（以下ＰＳと称する）、３
５０°Ｃまでに９０％以上減量してしまうエチレン−酢
酸ビニル共重合体（以下ＥＶＡと称する）、ポリエチレ
ンなどが知られている。Binders suitable for this purpose are:
Diethyl tucrate (hereinafter referred to as DEP), which loses weight by 90% or more by 200°C, dibutyl phthalate, paraffin wax (hereinafter referred to as PW), which loses weight by 90% or more by 250°C, stearic acid, 30
Polybutyl methacrylate, polystyrene (hereinafter referred to as PS), which loses weight by 90% or more by 0°C, 3
Ethylene-vinyl acetate copolymer (hereinafter referred to as EVA), polyethylene, etc., which lose weight by 90% or more by 50°C, are known.
〔発明が解決しようとする課Ｂ］
脱脂工程においては、上述したようにバインダの膨張に
よる成形体の破損の防止、あるいは焼結温度まで成形体
の形状保持を可能とする必要がある。このため、バイン
ダの急激な膨張、蒸発、分解による成形体の破損を避け
るために通常５０℃／Ｈｒ以下、好ましくは１０℃／Ｈ
ｒ以下の極めて緩やかな昇温速度で加熱している。[Problem B to be Solved by the Invention] In the degreasing step, as described above, it is necessary to prevent damage to the molded body due to expansion of the binder or to maintain the shape of the molded body up to the sintering temperature. Therefore, in order to avoid damage to the molded body due to rapid expansion, evaporation, and decomposition of the binder, it is usually 50°C/Hr or less, preferably 10°C/Hr.
Heating is carried out at an extremely slow temperature increase rate of r or less.
例えば１０°（：／ｌｌｒ昇温速度の場合、脱脂温度が
５００°Ｃだと脱脂温度に到達するのに５０時間を要し
ていて、生産性が著しく低いという問題点があった。For example, in the case of a temperature increase rate of 10° (:/llr), if the degreasing temperature is 500°C, it takes 50 hours to reach the degreasing temperature, which poses a problem of extremely low productivity.
また、ショウノウ等の昇華性物質を混合して脱脂を促進
することが特開平２−４３８４４３号等に開示されてい
るが、この場合脱脂は早く完了するが、バインダの膨張
による成形体の破損は避けられず、昇温速度を上げるこ
とはできない。In addition, Japanese Patent Application Laid-Open No. 2-438443 discloses mixing a sublimable substance such as camphor to promote degreasing, but in this case, degreasing is completed quickly, but the molded body is not damaged due to expansion of the binder. This is unavoidable and the rate of heating cannot be increased.
本発明の目的は、脱脂速度を上げても成形体の破損等が
発生せず脱脂時間を短縮できる焼結用成形体および焼結
物品の製造方法を提供することである。An object of the present invention is to provide a molded body for sintering and a method for producing a sintered article that can shorten the degreasing time without causing damage to the molded body even if the degreasing speed is increased.
本発明は、金属粉末とバインダと３−１５重量％の常温
で固体の昇華性物質を含有してなる焼結用成形体である
。The present invention is a molded body for sintering that contains metal powder, a binder, and 3-15% by weight of a sublimable substance that is solid at room temperature.
３−１５重量％昇華性物質を含有することにより、脱脂
処理の前にこの昇華性物質を除去することによって、成
形体を、昇華性物質の体積分、多孔質体とすることがで
きる。このような多孔質体を形成するように昇華性物質
の範囲を特定したのが本発明の最大の特徴である。By containing 3 to 15% by weight of the sublimable substance, the molded article can be made porous by the volume of the sublimable substance by removing the sublimable substance before degreasing. The greatest feature of the present invention is that the range of the sublimable substance is specified so as to form such a porous body.
この空孔のおかげで、急加熱しても、バインダが流れ出
る体積が確保できているので成形体に割れ膨れ等の異常
は認められない。この昇華性物質が、３重量％未満であ
ると、常温で真空処理を施しても、その体積が小さすぎ
るために実質的な効果は得られず、１５重量％を越える
と空孔の体積が大きすぎ、焼結晶の寸法精度が著しく低
下するため、この範囲に限定した。Thanks to these pores, even when heated rapidly, there is enough volume for the binder to flow out, so no abnormalities such as cracking or blistering are observed in the molded product. If the content of this sublimable substance is less than 3% by weight, even if vacuum treatment is performed at room temperature, the volume will be too small and no substantial effect will be obtained; if it exceeds 15% by weight, the volume of the pores will decrease. If it is too large, the dimensional accuracy of the fired crystal will drop significantly, so it was limited to this range.
昇華性物質としては、ショウノウ、ナフタリン、ジクロ
ルベンゼン、アダマンタン、トリメチレンノルボルナン
等昇華性の高いものなら何でも良い。As the sublimable substance, any substance with high sublimability such as camphor, naphthalene, dichlorobenzene, adamantane, trimethylenenorbornane, etc. may be used.
また、本発明は金属粉末に成形用バインダに加え、昇華
性物質を３−１５重量％含有させた成形体を、５０ ｔ
ｏｒｒより低い圧力で真空処理を施すことにより、前記
昇華性物質を昇華させてから、脱脂処理を行い、その後
焼結を行うことを特徴とする焼結部品の製造方法である
。In addition, the present invention produces a molded product containing 3 to 15% by weight of a sublimable substance in addition to a molding binder in metal powder, in a 50 t
This method of manufacturing a sintered part is characterized in that the sublimable substance is sublimated by vacuum treatment at a pressure lower than orr, followed by degreasing treatment, and then sintering.
昇華性物質は成形体を多孔質にするためのものであり、
バインダの膨張を起こさせないためには、脱脂のために
加熱する前に昇華させてしまう必要がある。このために
は５ Ｑ ｔｏｒｒに以下の圧力に減圧する真空処理が
利用できる。The sublimable substance is used to make the molded body porous.
In order to prevent the binder from expanding, it is necessary to sublimate it before heating it for degreasing. For this purpose, vacuum treatment can be used to reduce the pressure to 5 Q torr or less.
これにより、７０°（：／Ｈｒ以上の昇温速度でも成形
体を破損することなく、脱脂処理が可能となる。This makes it possible to perform degreasing without damaging the molded product even at a temperature increase rate of 70° (:/Hr or more).
また、真空処理の後、メチレンクロライド、アセトン等
の有機溶剤に浸漬すると、成形体は昇華性物質が昇華し
、多孔質になっているため、有機溶剤は成形体内部まで
良く浸透し、バインダの一部を短時間で溶出させ、多孔
質化が促進されるので更に昇温速度を早くすることがで
きる。In addition, when the molded body is immersed in an organic solvent such as methylene chloride or acetone after vacuum treatment, sublimable substances sublimate and the molded body becomes porous, so the organic solvent penetrates into the inside of the molded body and removes the binder. A portion of it is eluted in a short period of time, and porosity is promoted, so the temperature increase rate can be further increased.
〔実施例〕
本発明の実施例について説明する。なお、本発明は、以
下の実施例によって限定されるものではない。[Example] An example of the present invention will be described. Note that the present invention is not limited to the following examples.
（実施例１）
平均粒径７．４μｍの５ＵＳ３０４Ｌ水アトマイズ粉を
原料粉末とし、バインダは、アククティックポリプロピ
レン２．３重量部（以下特に断らない限り重量部とする
）、ＥＶＡｌ、５部、Ｐ Ｓ Ｏ，７部、Ｐ Ｗ １．
２部、Ｄ Ｅ Ｐ １．０部、昇華性物質はジクロルベ
ンゼンを１０．０部、加圧型ニーダを使用して混練しコ
ンパウンドとした。このコンパウンドを２５°Ｃに保持
した金型内にシリンダ温度９５°Ｃ１射出圧力９． Ｉ
Ｇ Ｐ ａで肉厚５［［１ＩＩｌ、長さ２０Ｉｎ［［
ｌ、幅６ｍｍの形状に射出成形した。この射出成形体を
、３ Ｑ ｔｏｒｒの真空炉中で１時間保持する真空処
理を行い、昇華性物質のジクロルベンゼンが減量したの
を確認した。減量が確認された成形体を、水素雰囲気中
で、平均１０℃／Ｈｒの昇温速度で６００°Ｃの脱脂を
行った。その後、１２５０°Ｃ１１Ｏ−４ｔｏｒｒの真
空炉中で焼結を行い、目的の焼結体を得た。得られた焼
結体の相対密度は９７％で、割れ膨れ等の欠陥はなく良
好であった。(Example 1) The raw material powder was 5US304L water atomized powder with an average particle size of 7.4 μm, and the binders were 2.3 parts by weight of actic polypropylene (hereinafter referred to as parts by weight unless otherwise specified), 5 parts of EVAl, P SO, 7 parts, P W 1.
2 parts, 1.0 part of DEP, and 10.0 parts of dichlorobenzene as a sublimable substance were kneaded using a pressure kneader to form a compound. This compound was placed in a mold kept at 25°C, cylinder temperature: 95°C, injection pressure: 9. I
G P a, wall thickness 5[[1IIl, length 20In[[
It was injection molded into a shape with a width of 6 mm. This injection molded product was subjected to vacuum treatment in which it was held in a vacuum furnace at 3 Q torr for 1 hour, and it was confirmed that the amount of dichlorobenzene, which is a sublimable substance, was reduced. The molded body whose weight loss was confirmed was degreased at 600°C in a hydrogen atmosphere at an average heating rate of 10°C/Hr. Thereafter, sintering was performed in a vacuum furnace at 1250°C and 11O-4 torr to obtain the desired sintered body. The obtained sintered body had a relative density of 97%, and was in good condition with no defects such as cracks and blisters.
（実施例２）
実施例１と同様に作成した成形体を昇温速度を平均７０
℃／Ｈｒに変え実施例１と同様の６００°Ｃの脱脂を行
った。その後、１２５０ ’Ｃ１１０−′ｔｏｒｒの真
空炉中で焼結を行い、目的の焼結体を得た。得られた焼
結体の相対密度は９７％で、割れ膨れ等の欠陥はなく良
好であった。(Example 2) A molded body prepared in the same manner as in Example 1 was heated at an average heating rate of 70%.
Degreasing was performed at 600°C in the same manner as in Example 1, except that the temperature was changed to 600°C/Hr. Thereafter, sintering was performed in a vacuum furnace at 1250'C110-'torr to obtain the desired sintered body. The obtained sintered body had a relative density of 97%, and was in good condition with no defects such as cracks and blisters.
（実施例３）
実施例１と同様に作成した成形体を、実施例１と同様の
真空処理を行った。得られた成形体を、メチレンクロラ
イド中で出力４５ＫＨｚの超音波洗浄を１０分間行い、
使用したバインダの１５％の減量が確認された。減量が
確認された成形体を、水素雰囲気中で、平均１０°Ｃ／
Ｉｌｒの昇温速度で６００°Ｃの脱脂を行った。その後
、１２５０ ”Ｃ１１０−’ｔｏｒｒの真空炉中で焼結
を行い、目的の焼結体を得た。得られた焼結体の相対密
度は９７％で、割れ膨れ等の欠陥はなく良好であった。(Example 3) A molded article prepared in the same manner as in Example 1 was subjected to the same vacuum treatment as in Example 1. The obtained molded body was subjected to ultrasonic cleaning with an output of 45 KHz in methylene chloride for 10 minutes,
A 15% reduction in the amount of binder used was confirmed. The molded product whose weight loss was confirmed was heated to an average of 10°C/10°C in a hydrogen atmosphere.
Degreasing was carried out at 600°C at a heating rate of Ilr. Thereafter, sintering was performed in a vacuum furnace at 1250"C110-'torr to obtain the desired sintered body. The relative density of the obtained sintered body was 97%, and it was in good condition with no defects such as cracks and blisters. there were.
（実施例４）
実施例３と同様に得られた成形体を昇温速度を平均２０
０℃／Ｈｒに変え実施例３と同様の６００°Ｃの脱脂を
行った。その後、１２５０°Ｃ１１０ｔｏｒｒの真空炉
中で焼結を行い、目的の焼結体を得た。得られた焼結体
の相対密度は９７％で、割れ膨れ等の欠陥はなく良好で
あった。(Example 4) A molded body obtained in the same manner as in Example 3 was heated at an average heating rate of 20
Degreasing was carried out at 600°C in the same manner as in Example 3, except that the temperature was changed to 0°C/Hr. Thereafter, sintering was performed in a vacuum furnace at 1250°C and 110 torr to obtain the desired sintered body. The obtained sintered body had a relative density of 97%, and was in good condition with no defects such as cracks and blisters.
本発明によれば、焼結体を得る際に必要である脱脂工程
の昇温速度を上げても、成形体に破損等が起こらないた
め、脱脂工程に要する時間が著しく短縮でき、生産性が
向上できる。According to the present invention, even if the temperature increase rate in the degreasing process necessary to obtain a sintered body is increased, no damage will occur to the molded body, so the time required for the degreasing process can be significantly shortened, and productivity can be increased. You can improve.
Claims (4)
体の昇華性物質を含有してなる焼結用成形体。(1) A molded body for sintering containing metal powder, a binder, and 3-15% by weight of a sublimable substance that is solid at room temperature.
３−１５重量％含有させた成形体を、５０ｔｏｒｒより
低い圧力で真空処理を施すことにより、前記昇華性物質
を昇華させてから、脱脂処理を行い、その後焼結を行う
ことを特徴とする焼結部品の製造方法。(2) A molded article containing 3-15% by weight of a sublimable substance in addition to a molding binder in metal powder is subjected to vacuum treatment at a pressure lower than 50 torr to sublimate the sublimable substance, and then A method for manufacturing sintered parts, characterized by performing degreasing treatment and then sintering.
し、バインダの一部を溶融させてから、脱脂処理を行う
ことを特徴とする請求項２に記載の焼結部品の製造方法
。(3) The method for producing a sintered part according to claim 2, characterized in that after sublimating the sublimable substance, immersing in an organic solvent and melting a part of the binder is followed by degreasing. .
熱する工程を含むことを特徴とする請求項２ないし３に
記載の焼結物品の製造方法。(4) The method for manufacturing a sintered article according to any one of claims 2 to 3, wherein the degreasing treatment includes a step of heating at an average temperature increase rate of 70° C./Hr or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23753690A JPH04116104A (en) | 1990-09-07 | 1990-09-07 | Production of molded body for sintering and sintered parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23753690A JPH04116104A (en) | 1990-09-07 | 1990-09-07 | Production of molded body for sintering and sintered parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04116104A true JPH04116104A (en) | 1992-04-16 |
Family
ID=17016794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23753690A Pending JPH04116104A (en) | 1990-09-07 | 1990-09-07 | Production of molded body for sintering and sintered parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04116104A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH062011A (en) * | 1992-06-24 | 1994-01-11 | Agency Of Ind Science & Technol | Production of powder compact |
| WO2006035846A1 (en) * | 2004-09-30 | 2006-04-06 | Dainippon Ink And Chemicals, Inc. | Process for producing porous sintered metal |
| US7585348B2 (en) | 2004-03-08 | 2009-09-08 | Battelle Memorial Institute | Feedstock composition for powder metallurgy forming of reactive metals |
| US7883662B2 (en) | 2007-11-15 | 2011-02-08 | Viper Technologies | Metal injection molding methods and feedstocks |
| US8124187B2 (en) | 2009-09-08 | 2012-02-28 | Viper Technologies | Methods of forming porous coatings on substrates |
| JP2014221945A (en) * | 2006-02-17 | 2014-11-27 | バイオメト マニファクチャリング エルエルシーＢｉｏｍｅｔ Ｍａｎｕｆａｃｔｕｒｉｎｇ ＬＬＣ | Method of forming porous metal implant |
-
1990
- 1990-09-07 JP JP23753690A patent/JPH04116104A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH062011A (en) * | 1992-06-24 | 1994-01-11 | Agency Of Ind Science & Technol | Production of powder compact |
| US7585348B2 (en) | 2004-03-08 | 2009-09-08 | Battelle Memorial Institute | Feedstock composition for powder metallurgy forming of reactive metals |
| US7585458B2 (en) | 2004-03-08 | 2009-09-08 | Battelle Memorial Institute | Method of using a feedstock composition for powder metallurgy forming of reactive metals |
| US7691174B2 (en) * | 2004-03-08 | 2010-04-06 | Battelle Memorial Institute | Feedstock composition and method of using same for powder metallurgy forming a reactive metals |
| WO2006035846A1 (en) * | 2004-09-30 | 2006-04-06 | Dainippon Ink And Chemicals, Inc. | Process for producing porous sintered metal |
| GB2435006A (en) * | 2004-09-30 | 2007-08-15 | Dainippon Ink & Chemicals | Process for producing porous sintered metal |
| JP2014221945A (en) * | 2006-02-17 | 2014-11-27 | バイオメト マニファクチャリング エルエルシーＢｉｏｍｅｔ Ｍａｎｕｆａｃｔｕｒｉｎｇ ＬＬＣ | Method of forming porous metal implant |
| US7883662B2 (en) | 2007-11-15 | 2011-02-08 | Viper Technologies | Metal injection molding methods and feedstocks |
| US8124187B2 (en) | 2009-09-08 | 2012-02-28 | Viper Technologies | Methods of forming porous coatings on substrates |
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