JPH01215909A - Manufacture of metallic fiber porous body - Google Patents
Manufacture of metallic fiber porous bodyInfo
- Publication number
- JPH01215909A JPH01215909A JP4034588A JP4034588A JPH01215909A JP H01215909 A JPH01215909 A JP H01215909A JP 4034588 A JP4034588 A JP 4034588A JP 4034588 A JP4034588 A JP 4034588A JP H01215909 A JPH01215909 A JP H01215909A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- metal fiber
- fibers
- sintered
- metallic fiber
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 229920000914 Metallic fiber Polymers 0.000 title abstract 7
- 239000000835 fiber Substances 0.000 claims abstract description 71
- 238000005245 sintering Methods 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 10
- 239000010935 stainless steel Substances 0.000 claims abstract description 9
- 239000000314 lubricant Substances 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 6
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 4
- 239000010432 diamond Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 76
- 239000002184 metal Substances 0.000 claims description 76
- 238000000034 method Methods 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 10
- 239000006061 abrasive grain Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 101100069231 Caenorhabditis elegans gkow-1 gene Proteins 0.000 claims 1
- 239000003082 abrasive agent Substances 0.000 claims 1
- 239000002657 fibrous material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052961 molybdenite Inorganic materials 0.000 abstract 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000004575 stone Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 241000239290 Araneae Species 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 239000003733 fiber-reinforced composite Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- -1 Ti B2 Chemical class 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910009043 WC-Co Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 244000145845 chattering Species 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は金属繊維を加圧成形すると共に、通電して加熱
焼結する金属繊維焼結多孔体の製造方法及びそれを利用
した軸受け、砥石の製造方法に関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method for manufacturing a metal fiber sintered porous body in which metal fibers are pressure-formed and heated and sintered by applying electricity, and a bearing and a grindstone using the same. Relating to a manufacturing method.
〔従来の技術）
旋削によって製作された断面が１０μｍ２〜５５μｍ２
である黄銅、低炭素鋼、アルミニウム、フェライト系ス
テンレス鋼、オーステナイト系ステンレス鋼等の金属繊
維はランダムウェーバ又はカードにかけられる以前に焼
鈍軟弛処理が施されており、且つＩｌｌ全全体７０重量
％以上のものが１０〜ｉｏｏ ｍｍの長さのものであっ
て、ランダムウェーバ又はカードにかけて得られたウェ
ブをそのまま焼結炉に導入して焼結することにより １
８０°曲げても折れない性質の金属繊維にし、この金属
繊維よりなる空隙率９９％で厚み５ ｍｍのウェブを得
、これを更に８００℃の水素中で焼結を行ない、焼結金
属多孔体を得る金属繊維多孔体の連続製造法が特公昭６
２−４１，２８４号公報に開示されている。[Prior art] The cross section produced by turning is 10 μm2 to 55 μm2.
Metal fibers such as brass, low carbon steel, aluminum, ferritic stainless steel, austenitic stainless steel, etc. are subjected to an annealing softening treatment before being applied to a random webber or card, and the total content of the metal fibers is 70% by weight or more. By introducing the obtained web into a sintering furnace as it is into a sintering furnace and sintering the web, which has a length of 10 to ioo mm,
The metal fibers were made into metal fibers that would not break even when bent at 80 degrees, and a web with a porosity of 99% and a thickness of 5 mm was obtained. This was further sintered in hydrogen at 800°C to create a sintered metal porous body. A method for continuous production of porous metal fibers was published in 1986.
It is disclosed in Japanese Patent No. 2-41,284.
従来の空隙率が９９％の金属Ｉｌ維からなるウェブであ
っても、これを水素中で加熱すると、金属繊維は全体的
に加熱され、表面が軟化、或いは溶融して繊維が互いに
広い範囲で溶着しあうことによって空隙率を急激に低下
させる等して正確な空隙率のものを得ることができない
。又、ウェブの外側から加熱するから、外側と中心部分
の加熱状態が一様でないことから、あまり厚いウェブの
焼結には適さなかった。Even if it is a conventional web made of metal Il fibers with a porosity of 99%, when it is heated in hydrogen, the metal fibers are heated as a whole, the surface softens or melts, and the fibers are separated from each other in a wide range. By welding each other, the porosity decreases rapidly, making it impossible to obtain a material with an accurate porosity. Furthermore, since the web is heated from the outside, the heating conditions between the outside and the center are not uniform, making it unsuitable for sintering very thick webs.
本発明はウェブの厚さにかかわりなく、ウェブを構成す
る金属繊維が互いに接触する部分のみを溶着し、又ウェ
ブの加圧力を制御して金属繊維が互いに接触する量を制
御し、所定の空隙率を有する金属繊維多孔体の製造方法
、及びこの金属繊維多孔体を利用した軸受、砥石の製造
方法、或いは、又粒体を含む金属１１維を基板に接合焼
結してなる金ＲｒＵＩＩｉ多孔体の製造方法を提供する
ことを目的とするものである。Regardless of the thickness of the web, the present invention welds only the parts where the metal fibers constituting the web contact each other, and also controls the pressing force of the web to control the amount of contact between the metal fibers and fill a predetermined gap. A method for manufacturing a porous metal fiber body having a high carbon fiber ratio, and a method for manufacturing a bearing or a grindstone using this porous metal fiber body, or a porous gold RrUIIi body formed by bonding and sintering metal 11 fibers containing grains to a substrate. The purpose of this invention is to provide a method for manufacturing.
上記目的を達成するために本発明は、５〜３０μｍφの
ステンレス繊維の所定量を所定寸法形状の塑型内に充填
すると共に、この型に押圧体兼通電電極を嵌合し、充填
金属、繊維を加圧圧縮すると共に通電（放電を含む）加
熱し、充填金属繊維を短時間で所望の空隙率を有する体
積となるように圧縮、成形、焼結するようにしたもので
ある。In order to achieve the above object, the present invention fills a predetermined amount of stainless steel fibers with a diameter of 5 to 30 μm into a plastic mold of a predetermined size and shape, fits a pressing body and current-carrying electrode into the mold, and fills the filled metal with fibers. The filled metal fibers are compressed, molded, and sintered in a short time to a volume having a desired porosity by compressing them under pressure and heating them with electricity (including discharge).
又、ステンレス繊維に３〜３０μｍφの固体潤滑材１ｙ
’ｌｏ Ｓ１２ 、ＷＳ２ 、ＢＮ、（ＣＦ）ｎの微粒
子を体積化で０．５〜２５％含有させて焼結し、含油性
軸受けを製造し、或いは金属繊維体に５〜５００μｍφ
の砥粒用の硬質粒子Ｓｆ ＣＸＣＢＮＸＦｅ ２０３、
ＡＩ！２０３、ＷＣ１ｚｒＯ２、ダイヤ等を体積比で３
〜６０％含有させて焼結し、砥石を製造し、或いは、又
、固体潤滑材、砥粒、摩擦材等の粒体を含む金属繊維を
金属等導電性の基板に接合焼結するようにしたものであ
る。In addition, a solid lubricant 1y with a diameter of 3 to 30 μm is added to the stainless steel fiber.
'lo S12, WS2, BN, (CF)n fine particles are contained in a volume of 0.5 to 25% and sintered to produce an oil-impregnated bearing, or a metal fiber body with a diameter of 5 to 500 μm
Hard particles Sf CXCBNXFe 203 for abrasive grains,
AI! 203, WC1zrO2, diamond etc. in volume ratio of 3
~60% content and sintering to manufacture a grindstone, or bonding and sintering metal fibers containing particles of solid lubricant, abrasive grains, friction material, etc. to a conductive substrate such as metal. This is what I did.
使用する金属繊維の密度と径と、全体の重量並びに塑型
の体積から加圧圧縮した金属繊維の空隙率を容易に知る
ことができる。この加圧圧縮した金属繊維に、押圧体兼
通電電極より通電すると、電流は金属繊維が互いに接触
した部分を溶着する。The porosity of the compressed metal fiber can be easily determined from the density and diameter of the metal fiber used, the total weight, and the volume of the plastic mold. When current is applied to the pressurized metal fibers from a pressing body and current-carrying electrode, the current welds the parts where the metal fibers are in contact with each other.
従って、始めに押圧体兼通電電極で加圧し所定の空隙率
を保った状態で、蜘蛛の巣状に焼結することができるこ
とから、フィルタの外に固体潤滑材を含有させた軸受け
や、砥′粒を含有させて砥石、摩擦材を含ませて金属板
に接合焼結しブレーキを製造することができる等極めて
広い範囲に利用することができるものである。Therefore, since it is possible to sinter into a spider web shape while maintaining a predetermined porosity by first pressurizing with a pressing body and current-carrying electrode, it is possible to sinter the shape of a spider's web in a state where a predetermined porosity is maintained. It can be used in a very wide range of applications, such as making grindstones containing 'grains, and brakes by joining and sintering metal plates with friction materials.
本発明を例示した図に基づいて説明する。使用する金属
繊維の素材はアルミニウム及びアルミ合金、銅及び銅合
金、鋼、鋳鉄、鉛、チタン、亜鉛等を用いることができ
るが、ここでは代表してステンレスを利用する。この素
材を旋盤によって回転し、切削する切刃には自励振動を
与えて直接、金属繊維を製造するビビリ振動切削法によ
って製造した繊維径５〜３０μｍφのものが利用される
。The present invention will be explained based on the drawings that illustrate the invention. The material of the metal fiber used can be aluminum and aluminum alloys, copper and copper alloys, steel, cast iron, lead, titanium, zinc, etc., but stainless steel is typically used here. This material is rotated by a lathe, and the cutting blade used for cutting is a fiber having a diameter of 5 to 30 μm, which is produced by a chatter vibration cutting method in which self-excited vibration is applied to directly produce metal fibers.
又、金Ｒ繊維の製造方法には、このビビリ振動切削法の
外にダイスを通して細線する伸線法、この伸線法の前の
段階で適用される押出法、高温で熱分解、水素還元、置
換反応等の気相反応を利用して加熱された基材の上に高
融点金属、炭化物く硼化物、珪化甥等を沈積させる気相
蒸着法等があり、これらの方法で製造した金属１ＩｉＨ
１又この金属繊維をウェブにしたものを利用することが
できる。In addition to the chattering vibration cutting method, methods for producing gold R fibers include a wire drawing method in which a fine wire is passed through a die, an extrusion method applied at a stage before this wire drawing method, thermal decomposition at high temperatures, hydrogen reduction, There are vapor phase deposition methods that deposit high melting point metals, carbides, borides, silicides, etc. on a heated base material using gas phase reactions such as substitution reactions, and metals produced by these methods
Alternatively, a web made of this metal fiber can be used.
本発明を実施する装置を例示した第１図に於て、枠１に
固定したヂＶンバ２の開口部を覆うカバー３はヒンジ４
で開閉し、ハンドル５によって密閉する。このチャンバ
２とカバー３とには何れも冷却水を流すジャケット６が
あって、図示していないが公知の冷却水供給装置で冷却
水を循環して冷却するようになっている。チャンバ２に
貫通して枢支する電極７，８はシール９，１０で気密に
保ち、電極７は絶縁部材１１を介して枠１に固定し、電
極８は絶縁部材１２を介してアクチエータ３８を構成す
るピストンロッド１３の端部に固着する。ピストンロッ
ド１３はシリンダ１４内を移動するピストン１５によっ
て上下に移動し、電極８を上下に移動する。この電極７
．８の先端面には、図示していないが、ＷＣ−Ｃｏ系の
合金をろう付けしておくこともあり、又電極の軸心に沿
って孔を設け、その孔径より細いパイプを挿入し、冷却
水を循環することによって電極７，８を一様に冷却する
。塑型１６に枢支した押圧体兼通電電極１７．１８で構
成する焼結室１９に金属繊維２０を充填し、一方の押圧
体兼通電電極１７を電極８の先端面に載置し、他方の押
圧体兼通電電極１８は電極７の先端面に当接するように
設置する。In FIG. 1 illustrating an apparatus for carrying out the present invention, a cover 3 covering an opening of a hinge 2 fixed to a frame 1 is attached to a hinge 4.
It opens and closes with the handle 5, and is sealed with the handle 5. Both the chamber 2 and the cover 3 have a jacket 6 through which cooling water flows, and although not shown, a known cooling water supply device is used to circulate the cooling water for cooling. The electrodes 7 and 8 that penetrate and pivot into the chamber 2 are kept airtight with seals 9 and 10, the electrode 7 is fixed to the frame 1 via an insulating member 11, and the electrode 8 is fixed to the actuator 38 via an insulating member 12. It is fixed to the end of the constituting piston rod 13. The piston rod 13 is moved up and down by a piston 15 moving within the cylinder 14, and moves the electrode 8 up and down. This electrode 7
．． Although not shown, a WC-Co alloy may be brazed to the tip surface of the electrode 8, and a hole is provided along the axis of the electrode, and a pipe smaller than the diameter of the hole is inserted. The electrodes 7 and 8 are uniformly cooled by circulating the cooling water. A sintering chamber 19 consisting of pressing body/current carrying electrodes 17 and 18 pivotally supported on a plastic mold 16 is filled with metal fibers 20, one pressing body/current carrying electrode 17 is placed on the tip surface of the electrode 8, and the other The pressing body/current-carrying electrode 18 is installed so as to come into contact with the tip end surface of the electrode 7.
この塑型１６と押圧体兼通電電極１７．１８は耐熱性の
高いグラフ１イト材を用いて作るが、特公昭４９−５．
８０３号公報で開示したように、粉末２０と接触する面
にＳ！ ０２ 、ＡＩ！２０３、ＭｇＯ１Ｆｅ２０３、
Ｆｅ３Ｏ４等のセラミックス粉末を薄く、通電により焼
結溶着したものを利用することができる。又、コノ外に
金属、Ｔｉ Ｂ２ 、Ｚｒ Ｂ２ 、Ｚｒ Ｃ，Ｔａ’
Ｃ，Ｔｉ Ｎ、ＢＮｌＮｂ Ｃ，Ｓｍ ０２等、炭化物
、窒化物、硼化物の単独又は複数種類を複合した流体に
Ｚｎｏ、５〜２０％、ＡｉｚＯａ１０〜４０％、５ｉＯ
ｚ４０〜８０％、Ｔｆ２０３５〜２０％の混合比率から
なるフワットを１０〜５０％混入して液状にしｌｃ型材
で型取りをして加熱し乾燥させるようにした、特願昭６
２−１８７，０３８号で提示したものも利用できる。チ
ャンバ２の開口２１に真空ポンプ２２を接続し、制御装
置２３の制御指令によりチャンバ２内の空気等を排気す
る。又チャンバ２の開口２４はチャンバ２内にＡｒ等の
雰囲気ガスを供給するボンベ２５とを弁２６を介して接
続するものであり、制御装置２３０制御指令により作動
する弁２６によりチャンバ２内にボンベ２５の雰囲気ガ
スを供給する。ヂＶンバ２の温度、塑型１６の温度は温
度センサ２７によって検出し、その検出信号を制御装置
２３に送り、その信号で制御装置２３に記憶しているプ
ログラムによって、パルス電流、又は直流電流とその印
加時間、及び冷却水の供給を制御することもできるよう
になっている。又、電極８の位置は枠１に設けた位置セ
ンサ２８で検出し、その検出信号を制御装置２３に送っ
て、金属繊維２０の歪量、製品寸法を検知し、その検出
信号を制ｍ装置２３に送る。電極７，８は図示していな
い端子を介してパルス電流、又は直流を印加する通電電
源２９と接続する。この通電電源２９は制御装置２３に
よって制御する。電極８・を移動するアクチエータ３８
の油圧シリンダ１４に接続する油路３３，３４の中、油
路３３は油タンク３５に通じ、油路３４はポンプ３６に
接続する。The plastic mold 16 and the pressing body/current-carrying electrodes 17 and 18 are made using graphite material with high heat resistance.
As disclosed in Publication No. 803, S! is applied to the surface that comes into contact with the powder 20. 02, AI! 203, MgO1Fe203,
It is possible to use a thin ceramic powder such as Fe3O4, which is sintered and welded by applying electricity. In addition, metals such as Ti B2 , Zr B2 , Zr C, Ta'
Zno, 5 to 20%, AizOa 10 to 40%, 5iO to the fluid containing C, TiN, BNlNb C, Sm 02, etc., carbide, nitride, boride alone or in combination of multiple types.
A patent application published in 1986, in which 10 to 50% of fuwat with a mixing ratio of Z40 to 80% and Tf of 2035 to 20% is mixed, liquefied, molded with LC molding material, heated and dried.
2-187,038 can also be used. A vacuum pump 22 is connected to the opening 21 of the chamber 2, and air etc. in the chamber 2 is evacuated according to a control command from a control device 23. The opening 24 of the chamber 2 is connected via a valve 26 to a cylinder 25 that supplies atmospheric gas such as Ar into the chamber 2. 25 atmosphere gases are supplied. The temperature of the chamber 2 and the temperature of the plastic mold 16 are detected by a temperature sensor 27, and the detection signal is sent to the control device 23, and the signal is used to generate a pulse current or a direct current according to a program stored in the control device 23. It is also possible to control the application time and supply of cooling water. Further, the position of the electrode 8 is detected by a position sensor 28 provided on the frame 1, and the detection signal is sent to the control device 23, which detects the amount of distortion of the metal fiber 20 and the product dimensions, and sends the detection signal to the control device. Send to 23rd. The electrodes 7 and 8 are connected to an energizing power source 29 that applies pulse current or direct current through terminals not shown. This energizing power source 29 is controlled by a control device 23. Actuator 38 for moving electrode 8
Of the oil passages 33 and 34 connected to the hydraulic cylinder 14, the oil passage 33 communicates with an oil tank 35, and the oil passage 34 connects with a pump 36.
このポンプ３６はインバータ回転数制御するモータ３７
によって駆動し、モータ３７の回転制御に伴って吐出量
を制御するようになっている。このポンプ３６が吐出す
る油をアクチエータ３Ｂに送る油路３４には、一方のポ
ート３９を接続し、他方のポート４０をタンク３５に開
放する絞り弁４１が設けである。この絞り弁４１のオリ
フィスは、オリフィスの径を変えたオリフィス板を交換
したり、ニードルの先端位置をねじ等で変化させて開口
量を変化させるものを任意に利用する。しかして、直径
ｄｍのオリフィスを通る流体の流量Ｑと、オリフィス前
後の圧力差Ｈとの関係は、公知の式Ｑ−α（πｄ４ ／
４ ’）（２９Ｈα１／α）ｚ ｍ ３ ／ｍｉｎに
よって算出することができるが、測定した流量Ｑとモー
タ３７の回転数（ポンプ３６の吐出量）及び油路３４内
の圧力、又はアクチエータ３８の圧縮圧力の値を制御装
置２３に入力して記憶させることによってデータとする
ことができ、このデータに基づいてアクチエータ３８に
よる圧縮圧力の制御をすることもできる。斯くすること
によって、アクチエータ３８の圧縮圧力は絞り弁４１の
オリフィスの径ｄとモータ３８の回転数の変化、つまり
ポンプ３６の吐出量の変化により無段階に、しかも広範
囲に亘って制御する。This pump 36 is driven by a motor 37 that controls the inverter rotation speed.
The discharge amount is controlled by controlling the rotation of the motor 37. An oil passage 34 that sends oil discharged by the pump 36 to the actuator 3B is provided with a throttle valve 41 that connects one port 39 and opens the other port 40 to the tank 35. The orifice of the throttle valve 41 can be changed by changing an orifice plate with a different orifice diameter or by changing the position of the tip of the needle with a screw or the like. Therefore, the relationship between the flow rate Q of fluid passing through an orifice with a diameter dm and the pressure difference H before and after the orifice is expressed by the well-known formula Q-α(πd4/
4') (29Hα1/α)z m 3 /min, but it can be calculated using the measured flow rate Q, the rotation speed of the motor 37 (discharge amount of the pump 36), the pressure inside the oil passage 34, or the pressure of the actuator 38. The value of the compression pressure can be input into the control device 23 and stored as data, and the compression pressure can be controlled by the actuator 38 based on this data. By doing so, the compression pressure of the actuator 38 is controlled steplessly and over a wide range by changing the diameter d of the orifice of the throttle valve 41 and the rotation speed of the motor 38, that is, changing the discharge amount of the pump 36.
第２図に示す伯の装置は、金属繊維のウェブ４４を電極
７，８に接続した通電性のローラ４５，４６で圧縮加圧
しながら通電して焼結するものであり、第１図で説明し
た構成と同じものについては同一符号をイ」シて説明を
省略した。Haku's apparatus shown in FIG. 2 sinters a metal fiber web 44 by applying electricity while compressing it using conductive rollers 45 and 46 connected to electrodes 7 and 8. Components that are the same as those described above are given the same reference numerals and their explanations are omitted.
上述の装置を利用して本発明では、５〜５０μｍφのス
テンレス繊維の所定量を所定寸法形状の塑型１６内に充
填すると共に、その塑型１６に押圧体兼通電電極１７．
１８を嵌合し充填した金属繊維２０をアクチエータ３８
で圧縮加圧し、その加圧量を、つまり製品寸法を位置セ
ンサ２８で検出しながら通電電源２９より、パルス電流
又は直流電流を通電加熱し、金属繊維が互いに接触する
部分を溶着して、蜘蛛の巣状に焼結した金属繊維多孔体
を得た。In the present invention, using the above-mentioned apparatus, a predetermined amount of stainless steel fibers having a diameter of 5 to 50 μm is filled into a plastic mold 16 having a predetermined size and shape, and a pressing body/current-carrying electrode 17 is placed in the plastic mold 16.
The metal fiber 20 fitted and filled with the actuator 38
The amount of pressurization, that is, the product dimensions, is detected by the position sensor 28, and a pulse current or direct current is applied from the energizing power source 29 to heat the metal fibers, welding the parts where the metal fibers come into contact with each other. A porous metal fiber body sintered into a nest shape was obtained.
第３図に、金属繊維の密度を横軸にとり、縦軸に引張り
強さをとってテストした結果を示すと、本発明の金属繊
維多孔体は線図Ｈに示すように、Ｉ！維密度が小さいも
のであっても、かなり引張り強さを示していて、金属繊
維密度の差に対する引張り強さの変化は少なく安定して
いる。それに対して、従来のものは線図Ｇに示すように
、金属繊維密度が高くならないと所定の引張り強度を有
する金属繊維強化複合材を得ることができない。又金属
繊維密度の僅かな差により、引張り強度が大きく変化し
て不安定なものであった。FIG. 3 shows the results of a test where the horizontal axis represents the density of metal fibers and the vertical axis represents tensile strength.As shown in diagram H, the metal fiber porous body of the present invention has I! Even if the fiber density is low, it shows considerable tensile strength, and the change in tensile strength due to the difference in metal fiber density is small and stable. In contrast, in the conventional method, as shown in diagram G, a metal fiber reinforced composite material having a predetermined tensile strength cannot be obtained unless the metal fiber density becomes high. Furthermore, the tensile strength varied greatly due to a slight difference in metal fiber density, making it unstable.
又、ステンレスｉ維に３〜３０μｍφの固体潤滑材ＭＯ
Ｓ２ 、ＷＳ２ 、ＢＮ、又は（ＣＦ）ｎの微粒子を体
積比で０．５〜２５％含有させて、通電焼結させること
により含油軸受を製造して、従来品と比較したところ、
最大許容力速度係数ＰＶ値が、従来品に対する本発明品
が、１０００ ： １４５０．１５００ ：２８００と
優れたものであり、摩擦係数μは０，０８ ：０．０７
．０．０９ ： ０．０８と何れも優れた値を示すも
のであった。In addition, a solid lubricant MO with a diameter of 3 to 30 μm is applied to stainless steel fiber.
Oil-impregnated bearings were produced by containing 0.5 to 25% by volume of fine particles of S2, WS2, BN, or (CF)n and sintered with electricity, and compared with conventional products.
The maximum allowable force-velocity coefficient PV value of the present invention product is superior to that of the conventional product at 1000:1450.1500:2800, and the friction coefficient μ is 0.08:0.07.
．． 0.09:0.08, both of which were excellent values.
又軸受けとは反対に、金属ｍＨに５〜５００μｍφの砥
粒用の硬質粒子Ｓ！ Ｃ，ＣＢＮ、 Ｆｅ ２０３、Ａ
ノ２ｏ３、ＷＣ１Ｚｒｏ２、ダイヤ等を体積比で３〜６
０％含有させて通電焼結し、強靭な砥石を製造すること
ができたものである。Also, contrary to bearings, hard particles S for abrasive grains with a diameter of 5 to 500 μm are used for metal mH! C, CBN, Fe 203, A
No2o3, WC1Zro2, diamond etc. in volume ratio of 3 to 6
It was possible to produce a strong grindstone by sintering with an electric current containing 0%.
或いは、又第４図に示すように、金属等導電性の基板４
７に、前記固体潤滑材、砥粒の外にＣ’ｕ −Ｃ系、ケ
ルメツト合金系、又はＦｃ系その他金属、合金、耐摩性
向上のために金属酸化物、金属窒化物、金属硼化物等高
硬度、高融点材を一種又はそれ以上添加混合したもの、
熱要領の大きい３ｅ等の金属、合金を主体とし、これに
Ｓｉ、Ｂ 、Ｍ（１，ＷＪｉ、ｌ−ｉ等の金属、Ｃ等
の粉粒体を含んだ金属繊維４８を、塑型１６内で接合焼
結することができたものである。Alternatively, as shown in FIG. 4, a conductive substrate 4 such as a metal
7. In addition to the abrasive grains, the solid lubricant contains C'u-C, Kelmet alloy, or Fc-based other metals, alloys, metal oxides, metal nitrides, metal borides, etc. to improve wear resistance. A mixture of one or more materials with high hardness and high melting point,
The metal fibers 48 are mainly made of metals and alloys such as 3e, which have a large heating requirement, and contain metals such as Si, B, M (1, WJi, l-i, etc.), and powders such as C. This allows for bonding and sintering to be performed within the process.
本発明の金属繊維強化複合材は繊維相互の接触部分を通
電により接合して鋼状にしたことにより、強さが極めて
大となり、空隙率も容易に制御することができるように
なったとから、フィルタ、軸受、砥石、ブレーキ等単体
で又金属板に接合焼結する等異なる製品に幅広く応用し
て優れた製品を製造することができたものである。The metal fiber-reinforced composite material of the present invention is made into a steel-like material by bonding the contact portions of the fibers together by applying electricity, making it extremely strong and making it possible to easily control the porosity. It has been applied to a wide range of different products, such as filters, bearings, grindstones, brakes, etc., or by bonding and sintering to metal plates, making it possible to manufacture excellent products.
第１図は本発明を実施する装置を例示した図、第２図は
本発明を実施する他の装置を例示した図、第３図は繊維
密度と引張り強さとの関係を示した図、第４図は金属板
等の基板に接合焼結したことを例示した図である。
７．８・・・・・・・・・電極
１６・・・・・・・・・塑型
１７．１８・・・・・・・・・押圧体兼通電電極２０・
・・・・・・・・金属繊維
２９・・・・・・・・・通電電源
３８・・・・・・・・・アクチエータ
４７・・・・・・・・・基板
特 許 出 願 人
株式会社井上ジャパックス研究所
代表者 井 上 潔FIG. 1 is a diagram illustrating an apparatus for implementing the present invention, FIG. 2 is a diagram illustrating another apparatus for implementing the present invention, FIG. 3 is a diagram illustrating the relationship between fiber density and tensile strength, and FIG. FIG. 4 is a diagram illustrating bonding and sintering to a substrate such as a metal plate. 7.8......Electrode 16...Plastic mold 17.18...Press body and current-carrying electrode 20.
......Metal fiber 29...Electrifying power source 38...Actuator 47...Substrate patent application Person stock Kiyoshi Inoue, representative of the company Inoue Japax Research Institute
Claims (4)
繊維焼結多孔体の製造方法に於て、前記金属繊維が５〜
３０μｍφのステンレス繊維であつて、該金属繊維の所
定量を所定寸法形状の塑型内に充填すると共に、該塑型
に押圧体兼通電電極を嵌合し、前記充填金属繊維体を加
圧圧縮すると共に通電（放電を含む）加熱し、充填金属
繊維体を短時間で所望の空隙率を有するように圧縮、成
形焼結することを特徴とする金属繊維焼結多孔体の製造
方法。(1) A method for producing a metal fiber sintered porous body in which metal fibers are press-molded and heated and sintered, wherein the metal fibers are
A predetermined amount of the metal fibers, which are stainless steel fibers with a diameter of 30 μm, are filled into a plastic mold of a predetermined size and shape, and a pressing body and current-carrying electrode is fitted into the plastic mold, and the filled metal fiber body is compressed under pressure. A method for producing a metal fiber sintered porous body, which comprises heating the filled metal fiber body with electricity (including discharge), compressing the filled metal fiber body in a short time so that it has a desired porosity, forming and sintering it.
繊維焼結多孔体の製造方法に於て、前記金属繊維体が３
〜３０μｍφの固体潤滑材ＭｏＳ＿２、ＷＳ＿２、ＢＮ
、又は（ＣＦ）ｎの微粒子を体積比で０．５〜２５％含
有してなることを特徴とする金属繊維多孔体からなる含
油性軸受けの製造方法。(2) In a method for producing a metal fiber sintered porous body in which metal fibers are press-formed and heated and sintered, the metal fiber body is
~30μmφ solid lubricant MoS_2, WS_2, BN
, or (CF)n in a volume ratio of 0.5 to 25%.
繊維多孔体の製造方法に於て、前記金属繊維体が５〜５
００μｍφの砥粒用の硬質粒子ＳｉＣ、ＣＢＮ、Ｆｅ＿
２Ｏ＿３、Ａｌ＿２Ｏ＿３、ＷＣ、ＺｒＯ＿２、ダイヤ
等を体積比で３〜６０％含有してなることを特徴とする
金属繊維多孔体からなる砥石の製造方法。(3) In a method for producing a porous metal fiber body in which metal fibers are pressure-molded and heated and sintered, the metal fiber body
Hard particles for abrasive grains of 00μmφ SiC, CBN, Fe_
1. A method for manufacturing a grindstone made of a porous metal fiber material, characterized in that the grindstone contains 3 to 60% by volume of 2O_3, Al_2O_3, WC, ZrO_2, diamond, etc.
繊維焼結多孔体の製造方法に於て、前記金属繊維、又は
固体潤滑材、砥粒、摩耗材等の粒体を含む繊維を金属等
導電性の基板に接合焼結してなる金属繊維多孔体の製造
方法。(4) In a method for manufacturing a metal fiber sintered porous body in which metal fibers are pressure-molded and heated and sintered, the metal fibers or fibers containing particles such as solid lubricants, abrasive grains, and abrasive materials are used. A method for manufacturing a metal fiber porous body formed by bonding and sintering a metal or other conductive substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4034588A JPH01215909A (en) | 1988-02-23 | 1988-02-23 | Manufacture of metallic fiber porous body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4034588A JPH01215909A (en) | 1988-02-23 | 1988-02-23 | Manufacture of metallic fiber porous body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01215909A true JPH01215909A (en) | 1989-08-29 |
Family
ID=12578043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4034588A Pending JPH01215909A (en) | 1988-02-23 | 1988-02-23 | Manufacture of metallic fiber porous body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01215909A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000004580A1 (en) * | 1998-07-14 | 2000-01-27 | The Furukawa Electric Co., Ltd. | Optical device, electronic device enclosure, and getter assembly |
| DE10108570C2 (en) * | 2001-02-22 | 2003-05-28 | Laeis & Bucher Gmbh | Method and device for producing a shaped body |
| DE10223250A1 (en) * | 2002-05-22 | 2003-12-18 | Max Fuss Gmbh & Co Kg Ing | Fiber reinforced ceramic material moldings are produced by pressing a raw material under temperature and pressure |
| US6901095B2 (en) | 2001-07-25 | 2005-05-31 | The Furukawa Electric Co., Ltd. | Semiconductor laser module, optical measuring method and optical measuring apparatus |
| JP2014194074A (en) * | 2013-03-01 | 2014-10-09 | Mitsubishi Materials Corp | Porous aluminum sintered compact |
| WO2021193956A1 (en) * | 2020-03-26 | 2021-09-30 | 株式会社村田製作所 | Composite fiber |
-
1988
- 1988-02-23 JP JP4034588A patent/JPH01215909A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000004580A1 (en) * | 1998-07-14 | 2000-01-27 | The Furukawa Electric Co., Ltd. | Optical device, electronic device enclosure, and getter assembly |
| DE10108570C2 (en) * | 2001-02-22 | 2003-05-28 | Laeis & Bucher Gmbh | Method and device for producing a shaped body |
| US6901095B2 (en) | 2001-07-25 | 2005-05-31 | The Furukawa Electric Co., Ltd. | Semiconductor laser module, optical measuring method and optical measuring apparatus |
| DE10223250A1 (en) * | 2002-05-22 | 2003-12-18 | Max Fuss Gmbh & Co Kg Ing | Fiber reinforced ceramic material moldings are produced by pressing a raw material under temperature and pressure |
| DE10223250B4 (en) * | 2002-05-22 | 2008-04-17 | Ing. Max Fuss Gmbh & Co. Kg | Device for the production of molded articles from fiber-reinforced ceramic materials |
| JP2014194074A (en) * | 2013-03-01 | 2014-10-09 | Mitsubishi Materials Corp | Porous aluminum sintered compact |
| US9669462B2 (en) | 2013-03-01 | 2017-06-06 | Mitsubishi Materials Corporation | Porous aluminum sintered compact |
| WO2021193956A1 (en) * | 2020-03-26 | 2021-09-30 | 株式会社村田製作所 | Composite fiber |
| JPWO2021193956A1 (en) * | 2020-03-26 | 2021-09-30 | ||
| CN115335558A (en) * | 2020-03-26 | 2022-11-11 | 株式会社村田制作所 | Composite fiber |
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