JPH0421740B2 - - Google Patents
Info
- Publication number
- JPH0421740B2 JPH0421740B2 JP16014984A JP16014984A JPH0421740B2 JP H0421740 B2 JPH0421740 B2 JP H0421740B2 JP 16014984 A JP16014984 A JP 16014984A JP 16014984 A JP16014984 A JP 16014984A JP H0421740 B2 JPH0421740 B2 JP H0421740B2
- Authority
- JP
- Japan
- Prior art keywords
- molded body
- porous molded
- composite
- metal
- composite ingot
- 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.)
- Expired
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- 239000002131 composite material Substances 0.000 claims description 48
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- 239000011159 matrix material Substances 0.000 claims description 23
- 239000000835 fiber Substances 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 12
- 229910000838 Al alloy Inorganic materials 0.000 description 9
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000011156 metal matrix composite Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- PPWPWBNSKBDSPK-UHFFFAOYSA-N [B].[C] Chemical compound [B].[C] PPWPWBNSKBDSPK-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000009694 cold isostatic pressing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 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
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は無機質短繊維と有機バインダーとか
らなる多孔質成形体にアルミニウム、アルミニウ
ム合金などの金属を含浸などした複合鋳塊および
その製造方法に係るものである。[Detailed Description of the Invention] Industrial Application Field This invention relates to a composite ingot in which a porous molded body made of inorganic short fibers and an organic binder is impregnated with metal such as aluminum or aluminum alloy, and a method for producing the same. It is.
従来の技術
従来の長繊維強化金属では押出、圧延などを行
うと、折角配列した長繊維が破壊されてしまうた
めに長繊維で強化した特性が消失してしまうとと
もに長繊維を破壊しないと加工できないために押
出しなどの加工自体が非常に困難である。このた
めに長繊維強化金属を押出、圧延などの加工は従
来より行われていない
しかしながら、複合鋳塊に押出、圧延、鋳造の
加工を行うことができるものとしてはウイスカー
などの短繊維を強化材とした複合鋳塊が考えられ
るし、またウイスカーなどを強化材とした複合鋳
塊を押出しなどした例としては外国で見られる程
度である。この外国の複合鋳塊は粒子を分散した
もの（DWA社）や炭化けい素（Sic）ウイスカ
ーを分散したもの（EXXON社とARCO社）があ
る。これらの複合鋳塊はいずれもアルミニウム合
金粉末と粒子もしくはウイスカーとを混合してか
ら、冷間静水圧（CIP）または熱間静水圧プレス
（HIP）もしくはホツトプレスしてビレツトを造
る、いわゆる粉末治金的方法により複合鋳塊を造
つているが、この従来の複合鋳塊では粉末治金的
方法のために気孔率が完全に零になりにくく、気
孔が存在しているという欠点があるし、アルミニ
ウム合金粉末の大きさより大きければ大きい程複
合鋳塊の均一性が保てないという欠点がある。更
に複合鋳塊が押出し成形の際に直接押出しダイス
の出口などと接触するとともに高温押出しするた
めにダイスの寿命が著しく短かくなるという欠点
があるし、また押出し成形材の表面性状が悪いと
ともに押出しスピードが遅いなどの理由により押
出性が悪いという欠点がある。Conventional technology When conventional long fiber reinforced metals are extruded or rolled, the carefully arranged long fibers are destroyed, so the properties reinforced by long fibers are lost and the metal cannot be processed without destroying the long fibers. Therefore, processing itself such as extrusion is extremely difficult. For this reason, long fiber-reinforced metals have not traditionally been processed by extrusion, rolling, etc. However, one method that can be used to extrude, roll, or cast composite ingots is to use short fibers such as whiskers as reinforcing materials. Composite ingots can be considered, and examples of extrusion of composite ingots using whiskers as reinforcing materials have only been seen in foreign countries. These foreign composite ingots include those with dispersed particles (DWA) and those with dispersed silicon carbide (Sic) whiskers (EXXON and ARCO). All of these composite ingots are produced using so-called powder metallurgy, which involves mixing aluminum alloy powder with particles or whiskers and then using cold isostatic pressing (CIP), hot isostatic pressing (HIP), or hot pressing to create a billet. However, due to the powder metallurgy method, this conventional composite ingot has the disadvantage that it is difficult to completely reduce the porosity to zero, and there are pores. The disadvantage is that the larger the size of the alloy powder, the more difficult it is to maintain the uniformity of the composite ingot. Furthermore, during extrusion molding, the composite ingot comes into direct contact with the outlet of the extrusion die and is extruded at a high temperature, which significantly shortens the life of the die.Also, the surface quality of the extruded material is poor and the extrusion It has the disadvantage of poor extrudability due to slow speed and other reasons.
発明が解決しようとする問題点
この発明は従来の複合鋳塊が有するこれらの欠
点を解消し、均一的な複合鋳塊を得ることや複合
鋳塊を押出しなどの加工した際に加工材の表面性
状が良好であること、そして押出し成形の際に押
出性が良いことなど目的としたものである。Problems to be Solved by the Invention The present invention solves these drawbacks of conventional composite ingots, and it is possible to obtain a uniform composite ingot and improve the surface of the processed material when processing the composite ingot by extrusion, etc. The purpose is to have good properties and good extrudability during extrusion molding.
問題点を解決するための手段
この発明は炭化けい素（Sic）ウイスカーなど
の無機質短繊維を有機バインダー溶液中に加えて
良く撹拌して泥奬状に混合してから、この泥漿状
の混合体を吸水性を有するなどの型に注入した
り、または押出し成形したりし、次いで乾燥固化
することにより多孔質成形体を形成し、この多孔
質成形体を約500℃で予備加熱して有機バインダ
ーを焼却分解してから、多孔質成形体を溶湯金属
入りで、かつ多孔質成形体より大きい型に加圧含
浸して無機質短繊維が分散した複合鋳塊を形成す
る。Means for Solving the Problems This invention involves adding inorganic short fibers such as silicon carbide (Sic) whiskers to an organic binder solution, stirring well to mix them into a slurry, and then adding the slurry-like mixture to the organic binder solution. is injected into a water-absorbing mold or extruded, and then dried and solidified to form a porous molded body. This porous molded body is preheated at approximately 500°C to form an organic binder. After incineration and decomposition, the porous molded body is impregnated under pressure into a mold containing molten metal and larger than the porous molded body to form a composite ingot in which inorganic short fibers are dispersed.
この発明は溶湯金属入りの型を多孔質成形体よ
り大きくしたためにこの溶湯金属入り型に多孔質
成形体を加圧含浸することにより多孔質成形体の
全側面と少なくとも天地面の１方より溶湯金属が
多孔質成形体に含浸することができるとともに多
孔質成形体の全側面と天地の１方または双方がマ
トリツクス金属で覆うことができるから、複合鋳
塊の複合化が容易にできるとともに均一的な複合
鋳塊を形成することができる。更に複合鋳塊の全
側面と少なくとも天地の１方がマトリツクス金属
で覆われた複合鋳塊を容易に形成することができ
る。 In this invention, since the mold containing the molten metal is made larger than the porous molded body, the mold containing the molten metal is impregnated with the porous molded body under pressure, so that the molten metal is poured from all sides and at least one of the top and bottom of the porous molded body. Since metal can be impregnated into the porous molded body and all sides and one or both of the top and bottom of the porous molded body can be covered with matrix metal, the composite ingot can be easily and uniformly composited. A composite ingot can be formed. Further, it is possible to easily form a composite ingot in which all sides and at least one of the top and bottom sides of the composite ingot are covered with matrix metal.
多孔質成形体と同じ大きさの溶湯金属入り型に
多孔質成形体を加圧含浸すると、溶湯金属の含浸
方向が一方向的になので複合化が円滑に行われな
いばかりでなく、多孔質成形体が一方向に圧縮さ
れ易く、均一的な複合鋳塊を形成しにくくなる。 If a porous molded body is impregnated under pressure into a mold containing molten metal of the same size as the porous molded body, the impregnation direction of the molten metal is unidirectional, which not only prevents smooth composite formation, but also prevents the porous molding from forming smoothly. The body tends to be compressed in one direction, making it difficult to form a uniform composite ingot.
この発明の複合鋳塊は全側面と少なくとも天地
の１方が全複合部分の少なくとも１％以上のマト
リツクス金属で覆われているから、複合鋳塊のマ
トリツクス金属で覆われている天地の側をダイス
の出口に向けて、複合鋳塊を熱間押出しを行う際
にはマトリツクス金属の押出条件と全く同じ条件
で押出しを行うことができるためにダイスの出口
などにマトリツクス金属が接触してダイスがほと
んど磨耗せず、ダイスの寿命を短縮することがな
いし、押出し成形材の表面は薄くマトリツクス金
属で覆われているために押出し成形材の表面性状
が良好であるとともに押出し成形の押出性が良
く、押出し成形のスピードも速く生産性が良い。 Since all sides and at least one of the top and bottom sides of the composite ingot of the present invention are covered with matrix metal that accounts for at least 1% of the entire composite part, the top and bottom sides of the composite ingot covered with matrix metal are diced. When hot extruding a composite ingot toward the exit of the die, the extrusion can be performed under exactly the same conditions as the extrusion conditions of the matrix metal, so the matrix metal comes into contact with the exit of the die and the die is almost completely extruded. It does not wear out and does not shorten the life of the die, and since the surface of the extruded material is covered with a thin matrix metal, the surface quality of the extruded material is good, and the extrudability of the extrusion molding is good. Molding speed is fast and productivity is good.
これに対して複合鋳塊の全側面と天地がマトリ
ツクス金属で覆われていない複合鋳塊は押出し成
形は可能であるが、高温で押出しする必要がある
とともに押出しスピードが遅く、生産性が悪い
し、押出し成形材の表面欠陥が発生し易い。 On the other hand, composite ingots whose entire sides and top and bottom are not covered with matrix metal can be extruded, but they must be extruded at high temperatures, the extrusion speed is slow, and productivity is poor. , surface defects of the extruded material are likely to occur.
なお、この発明の複合鋳塊は押出し成形の外
に、圧延したり、鋳造したりして成形してもよ
い。 In addition to extrusion, the composite ingot of the present invention may be formed by rolling or casting.
この発明に用いる無機質短繊維はウイスカーの
外に約10μから10mmのチヨツプした短繊維
（Al3O2、Sic、ホウ素炭素）がよいし、また有機
バインダーとしてはメチルセルロース、ポリビニ
ールアルコール、カルボキシメチルセルロース、
ポリエチレングリコール、ポリエチレンオオサイ
ド、ニトロセルロース、酢酸セルロース、ポリウ
レタンなどがよい。 The inorganic short fibers used in this invention are preferably chopped short fibers (Al 3 O 2 , Sic, boron carbon) of about 10 μ to 10 mm outside the whiskers, and the organic binders include methyl cellulose, polyvinyl alcohol, carboxymethyl cellulose,
Preferred examples include polyethylene glycol, polyethylene oxide, nitrocellulose, cellulose acetate, and polyurethane.
そしてマトリツクス金属の厚さは１〜20％位が
よくて、１％以下では高圧鋳造による複合化が円
滑に行わないとともに多孔質成形体が圧縮され易
くなる。20％以上では複合化効率が悪くなるとと
もに多孔質成形体がセンターよりずれ易くなる。 The thickness of the matrix metal is preferably about 1 to 20%; if it is less than 1%, the composite cannot be formed smoothly by high-pressure casting, and the porous molded body is likely to be compressed. If it exceeds 20%, the composite efficiency deteriorates and the porous molded body tends to shift from the center.
次にこの発明の複合鋳塊を製造方法とともに実
施例とともに説明する。 Next, the composite ingot of the present invention will be explained along with a manufacturing method and examples.
実施例 １
繊維径が約0.1なしい1.0μ、繊維長が約50ない
し200μの炭化けい素（Sic）ウイスカー100ｇを有
機バインダー溶液であるカルボキシメチルセルロ
ース（CMC）２％水溶液1.0に加えて均一に分
散するように良く撹拌して懸濁液にする。Example 1 100g of silicon carbide (Sic) whiskers with a fiber diameter of about 0.1 to 1.0μ and a fiber length of about 50 to 200μ are added to a 2% aqueous solution of carboxymethyl cellulose (CMC), which is an organic binder solution, and uniformly dispersed. Stir well to make a suspension.
この懸濁液を、石こうや塩化カルシウムなどで
造られて吸水性を有するとともに所定形状の型に
注入し、懸濁液中の水分を、吸水性を有する型を
介して、吸水させる。 This suspension is poured into a mold made of gypsum, calcium chloride, etc., which is water-absorbent and has a predetermined shape, and the water in the suspension is absorbed through the water-absorbent mold.
このようにして懸濁液は水分を失うので型の中
にバインダーであるカルボキシメチルセルロース
と炭化けい素ウイスカーが残る。これを充分に乾
燥させると、多少収縮した多孔質成形体ができ
る。 The suspension thus loses water, leaving the binder carboxymethyl cellulose and silicon carbide whiskers in the mold. When this is sufficiently dried, a slightly shrunk porous molded body is formed.
この若干の水分を含んだ多孔質成形体を型より
取出して完全に乾燥して金属基複合材用多孔質成
形体を造る。 This porous molded body containing some moisture is taken out from the mold and completely dried to produce a porous molded body for a metal matrix composite material.
この多孔質成形体を必要に応じて機械加工を施
してから、約500℃で予熱して有機バインダーで
あるCMCを焼却分解する。多孔質成形体１より
大きい金型２に約800℃で溶融状態の6061アルミ
ニウム合金３を入れ、この金型２に多孔質成形体
１を加圧体４で上から加圧しながら含浸すること
いより矢印のように多孔質成形体１の全側面と地
側から多孔質成形体１の空隙に溶湯アルミニウム
合金を含浸してSicウイスカーが分散した複合材
５となり、かつ全側面および地側がマトリツクス
金属であるアルミニウム合金６で覆われた複合鋳
塊７を造る。 This porous molded body is machined as necessary and then preheated to about 500°C to incinerate and decompose the organic binder CMC. 6061 aluminum alloy 3 in a molten state at about 800°C is placed in a mold 2 larger than the porous molded body 1, and the porous molded body 1 is impregnated into the mold 2 while being pressed from above with a pressurizing body 4. As shown by the arrow, molten aluminum alloy is impregnated into the voids of the porous molded body 1 from all sides and the bottom side of the porous molded body 1 to form a composite material 5 in which SiC whiskers are dispersed, and all the sides and the bottom side are made of matrix metal. A composite ingot 7 covered with an aluminum alloy 6 is produced.
この実施例１の方法で造つた複合鋳塊７を550
℃で予熱してから第３図々示のように複合鋳塊７
のマトリツクス金属であるアルミニウム合金６で
覆われている地側をダイス８の出口８′に向けて
ダイス８の中に入れ、ラム９を用いて熱間押出し
成形することによりマトリツクス金属の押出条件
と全く同じ条件で押出しを行うことができるし、
押出し成形材１０は第４図々示のように表面が薄
いマトリツクス金属であるアルミニウム合金６で
覆われ、内部はSicウイスカーが分散した複合材
５である。 The composite ingot 7 made by the method of Example 1 was 550
After preheating at ℃, the composite ingot 7 is heated as shown in Fig.
The base side covered with aluminum alloy 6, which is the matrix metal of Extrusion can be performed under exactly the same conditions,
As shown in FIG. 4, the extruded material 10 has a surface covered with an aluminum alloy 6, which is a thin matrix metal, and an interior made of a composite material 5 in which SiC whiskers are dispersed.
この実施例１の方法で造る課程において、中間
体である多孔質成形体は非常に強固で、取扱い中
に欠けたり、破れたりすることなく、高さ２ｍの
所から落しても破損しなかつた。また多孔質成形
体の体積比（uf）を測定したところ約14％である
から、86％が空洞であるSicウイスカーの強固な
多孔質成形体である。 In the process of manufacturing using the method of Example 1, the intermediate porous molded product was extremely strong and did not chip or tear during handling, and did not break even when dropped from a height of 2 meters. . Furthermore, the volume ratio (uf) of the porous molded body was measured and was approximately 14%, so it was a strong porous molded body with SiC whiskers, of which 86% were cavities.
実施例 ２
繊維径が約0.5μ、繊維長が約50μの炭化けい素
（Sic）ウイスカー200ｇを有機バインダー溶液で
あるメチルセルロース５％、ステアリン酸エマル
ジヨン１％、グリセリン１％水溶液1.0に加え
て均一になるようによく撹拌して比較的水分の少
ない粘土状にする。Example 2 200g of silicon carbide (Sic) whiskers with a fiber diameter of about 0.5μ and a fiber length of about 50μ are added to an organic binder solution of 5% methyl cellulose, 1% stearic acid emulsion, and 1.0% glycerin aqueous solution and uniformly mixed. Stir well to make a clay-like consistency with relatively little moisture.
この粘土状のものを押出機を用いて円柱状に押
出してから乾燥固化し、所定の長さに切断して円
柱状の金属基複合材用多孔質成形体を造る。 This clay-like material is extruded into a cylindrical shape using an extruder, dried and solidified, and cut into a predetermined length to produce a cylindrical porous molded body for a metal matrix composite material.
この多孔質成形体を実施例１とほぼ同様にして
全側面と天地の１方がマトリツクス金属で覆われ
た複合鋳塊を造る。 This porous molded body is treated in substantially the same manner as in Example 1 to produce a composite ingot in which all sides and one of the top and bottom are covered with matrix metal.
更に別の方法としては全側面および天地の全面
がマトリツクス金属であるアルミニウム合金で覆
われた複合鋳塊を造り、複合鋳塊の天地の１方を
複合材のマトリツクス金属側の端部まで切断した
複合鋳塊を圧延または鋳造する際にはそのまま圧
延したり、鋳造したりする。 Another method is to create a composite ingot whose entire sides and top and bottom are covered with aluminum alloy, which is a matrix metal, and cut one of the top and bottom of the composite ingot to the end of the composite material on the matrix metal side. When rolling or casting a composite ingot, it is rolled or cast as is.
発明の効果
この発明の複合鋳塊は多孔質成形体の全側面と
少なくとも天地の１方より溶湯金属が含浸されて
いるから、複合鋳塊の複合化が容易にできるとと
もに均一的な複合鋳塊を形成することができる。
そして複合鋳塊の全側面と天地の１方がマトリツ
クス金属で覆われた複合鋳塊を容易に形成するこ
とができる。Effects of the Invention Since the composite ingot of the present invention is impregnated with molten metal from all sides and at least one of the top and bottom sides of the porous molded body, it is possible to easily compose the composite ingot and to obtain a uniform composite ingot. can be formed.
Then, it is possible to easily form a composite ingot in which all sides and one of the top and bottom are covered with matrix metal.
更にこの発明の複合鋳塊は全側面と少なくとも
天地の１方がマトリツクス金属で覆われているか
ら、複合鋳塊のマトリツクス金属で覆われている
天地の側をダイスの出口に向けて、複合鋳塊を熱
間押出しを行うと、マトリツクス金属の押出し条
件と全く同じ条件で押出しを行うことができるた
めにダイスの出口などにマトリツクス金属が接触
してダイスがほとんど磨耗せず、ダイスの寿命を
短縮することがないし、押出し成形材の表面は薄
くマトリツクス金属で覆われているために押出し
成形材の表面性状が良好であるとともに押出し成
形の押出性が良く、押出し成形のスピードも速
く、生産性が良い。 Furthermore, since the composite ingot of the present invention is covered with matrix metal on all sides and at least one of the top and bottom sides, the composite ingot is cast with the top and bottom sides covered with matrix metal facing the exit of the die. When a lump is hot extruded, it can be extruded under exactly the same conditions as the extrusion conditions for matrix metal, so the matrix metal comes into contact with the exit of the die, causing almost no wear on the die, which shortens the life of the die. The surface of the extruded material is covered with a thin matrix metal, so the surface quality of the extruded material is good, the extrusion properties are good, the extrusion speed is fast, and the productivity is high. good.
第１図は本発明品の断面図、第２図は含浸中の
断面図、第３図はダイスの断面図、第４図は押出
し成形材の拡大断面図である。
１は多孔質成形体、２は金型、３は溶融状態の
アルミニウム合金、４は加圧体、５は複合材、６
はマトリツクス金属のアルミニウム合金、７は複
合鋳塊。
FIG. 1 is a sectional view of the product of the present invention, FIG. 2 is a sectional view during impregnation, FIG. 3 is a sectional view of the die, and FIG. 4 is an enlarged sectional view of the extruded material. 1 is a porous molded body, 2 is a mold, 3 is an aluminum alloy in a molten state, 4 is a pressurized body, 5 is a composite material, 6
7 is a matrix metal aluminum alloy, and 7 is a composite ingot.
Claims (1)
合してなる成形体が金属を含浸しているとともに
該金属を含浸した成形体の全側面および少なくと
も天地の１方がマトリツクス金属で覆われている
ことを特徴とする複合鋳塊。 ２ 無機質短繊維を有機バインダー溶液に加えて
良く撹拌して泥奬状に混合してから、該泥漿状の
混合体を型に注入または押出し成形して乾燥固化
して多孔質成形体を形成し、該多孔質成形体を予
備加熱してから、溶湯金属入りで、かつ多孔質成
形体より大きい型に加圧含浸することを特徴とす
る複合鋳塊の製造方法。[Scope of Claims] 1. A molded product formed by porously bonding inorganic short fibers with an organic binder is impregnated with a metal, and all sides and at least one of the top and bottom sides of the molded product impregnated with the metal are made of matrix metal. A composite ingot characterized by being covered with. 2 Add the inorganic short fibers to the organic binder solution and mix well to form a slurry, then inject or extrude the slurry-like mixture into a mold and dry and solidify to form a porous molded body. . A method for producing a composite ingot, comprising preheating the porous molded body and then impregnating it under pressure into a mold containing molten metal and larger than the porous molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16014984A JPS6137935A (en) | 1984-07-30 | 1984-07-30 | Composite ingot and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16014984A JPS6137935A (en) | 1984-07-30 | 1984-07-30 | Composite ingot and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6137935A JPS6137935A (en) | 1986-02-22 |
| JPH0421740B2 true JPH0421740B2 (en) | 1992-04-13 |
Family
ID=15708927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16014984A Granted JPS6137935A (en) | 1984-07-30 | 1984-07-30 | Composite ingot and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6137935A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2715149B2 (en) * | 1989-07-13 | 1998-02-18 | 三菱電線工業株式会社 | Scope objective swing structure |
| DE69115665T2 (en) * | 1990-07-10 | 1996-06-13 | Fujitsu Ltd | PRINT HEAD |
| US5711362A (en) * | 1995-11-29 | 1998-01-27 | Electric Power Research Institute | Method of producing metal matrix composites containing fly ash |
-
1984
- 1984-07-30 JP JP16014984A patent/JPS6137935A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6137935A (en) | 1986-02-22 |
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