JPH0425333B2 - - Google Patents
Info
- Publication number
- JPH0425333B2 JPH0425333B2 JP61011611A JP1161186A JPH0425333B2 JP H0425333 B2 JPH0425333 B2 JP H0425333B2 JP 61011611 A JP61011611 A JP 61011611A JP 1161186 A JP1161186 A JP 1161186A JP H0425333 B2 JPH0425333 B2 JP H0425333B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molded body
- body material
- collapse
- heating
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000012778 molding material Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- 239000012783 reinforcing fiber Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】
Ａ 発明の目的
(1) 産業上の利用分野
本発明は、金属製部材等を繊維強化する場合に
用いられる強化用筒状繊維成形体の製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Industrial Application Field The present invention relates to a method for manufacturing a reinforcing cylindrical fiber molded body used for fiber reinforcing a metal member or the like.
(2) 従来の技術
従来、この種繊維成形体は、通気性を有する筒
状成形型の両端開口部を密封し、その成形型を強
化繊維および無機バインダを含む成形材料の水溶
液中に浸漬し、その成形型内に吸引作用を施すこ
とにより成形材料を成形型の外周面に付着させて
成形体素材を成形する工程、成形体素材を成形型
に押圧して成形体素材の形状を整える工程、成形
型の両端開口部を開放し、また成形型を成形体素
材より引抜く工程、成形体素材を加熱乾燥する工
程および成形体素材を焼成して無機バインダによ
り強化繊維を部分的に結合する工程を経て製造さ
れる。(2) Conventional technology Conventionally, this type of fiber molded article is produced by sealing the openings at both ends of an air-permeable cylindrical mold, and immersing the mold in an aqueous solution of a molding material containing reinforcing fibers and an inorganic binder. , a process of applying a suction action within the mold to make the molding material adhere to the outer peripheral surface of the mold to form a molded body material, a process of pressing the molded body material against the mold to adjust the shape of the molded body material , a process of opening both end openings of the mold and pulling the mold from the molded body material, a process of heating and drying the molded body material, and a process of firing the molded body material and partially bonding the reinforcing fibers with an inorganic binder. Manufactured through a process.
(3) 発明が解決しようとする問題点
しかしながら、前記のように成形体素材の加熱
乾燥前に成形型を成形体素材より引抜くと、その
成形体素材は多量の水分を含有し、保形性が悪い
ので、成形体素材が変形して繊維成形体の寸法精
度が悪化するという問題がある。(3) Problems to be Solved by the Invention However, as mentioned above, when the mold is pulled out from the molded material before the molded material is heated and dried, the molded material contains a large amount of water and has a tendency to retain its shape. Because of the poor properties, there is a problem that the molded body material is deformed and the dimensional accuracy of the fiber molded body is deteriorated.
本発明は前記問題を解決し得る前記製造方法を
提供することを目的とする。 An object of the present invention is to provide the manufacturing method capable of solving the above problems.
Ｂ 発明の構成
(1) 問題点を解決するための手段
本発明は、高温加熱下で崩壊可能な通気性を有
する筒状成形型の両端開口部を密封し、前記成形
型を強化繊維および無機バインダを含む成形材料
の水溶液中に浸漬し、前記成形型内に吸引作用を
施すことにより前記成形材料を前記成形型の外周
面に付着させて成形体素材を成形する工程と；前
記成形体素材を前記成形型に押圧して該成形体素
材の形状を整える工程と；前記成形体素材を前記
成形型の崩壊温度よりも低温で加熱乾燥する工程
と；前記成形型を崩壊温度以上に加熱して該成形
型を崩壊し除去する工程と；前記成形体素材を焼
成して前記無機バインダにより前記強化繊維を部
分的に結合する工程と；を用いることを特徴とす
る。B. Structure of the Invention (1) Means for Solving Problems The present invention seals the openings at both ends of an air permeable cylindrical mold that can be disintegrated under high-temperature heating, and the mold is filled with reinforcing fibers and inorganic materials. forming a molded body material by immersing the molding material in an aqueous solution containing a binder and applying a suction action within the mold to adhere the molding material to the outer peripheral surface of the mold; pressing the mold into the mold to adjust the shape of the molded body material; heating and drying the molded body material at a temperature lower than the collapse temperature of the mold; heating the mold to a temperature higher than the collapse temperature. The method is characterized by using the following steps: collapsing and removing the mold by using the mold; and firing the molded body material to partially bond the reinforcing fibers with the inorganic binder.
(2) 作用
前記のように成形体素材の加熱乾燥後成形型を
崩壊除去すると、その成形体素材の変形を防止し
て繊維成形体の寸法精度を良好にすることがで
き、また成形型の引抜き工程を省くことができ
る。(2) Effect When the mold is disintegrated and removed after heating and drying the molded body material as described above, deformation of the molded body material can be prevented and the dimensional accuracy of the fiber molded body can be improved, and the shape of the mold can be improved. The drawing process can be omitted.
(3) 実施例
第１図は本発明により得られた強化用筒状繊維
成形体１を示し、その繊維成形体１は、強化繊維
としての炭素繊維およびアルミナ繊維の混合短繊
維を、無機バインダとしてのシリカゾル、アルミ
ナゾル、またはそれらの混合ゾルにより部分的に
結合したもので、マトリツクスが浸入し得る無数
の空隙を有する。(3) Example FIG. 1 shows a reinforcing cylindrical fiber molded body 1 obtained according to the present invention. It is partially bonded by silica sol, alumina sol, or a mixed sol thereof, and has countless voids into which the matrix can penetrate.
この繊維成形体１は、例えばアルミニウム合金
製シリンダブロツクの鋳造時においてアルミニウ
ム合金マトリツクスと複合して繊維強化複合シリ
ンダスリーブを得るために用いられる。 This fiber molded body 1 is used, for example, in order to obtain a fiber-reinforced composite cylinder sleeve by combining it with an aluminum alloy matrix when casting an aluminum alloy cylinder block.
次に第２図により前記繊維成形体１の製造方法
について説明する。 Next, a method for manufacturing the fiber molded body 1 will be explained with reference to FIG.
第２図ａに示すように、シエル砂（粒度
AFS35）を用いて通気性を有する円筒状成形型
２を形成する。この成形型２の外径は75mm、厚さ
は約５mmで、圧環強さは65Kg／cm2である。また成
形型２はシエル砂より構成されているので、350
〜400℃に高温加熱されると崩壊するいう性質を
有する。 As shown in Figure 2a, shell sand (grain size
A cylindrical mold 2 with air permeability is formed using AFS35). The mold 2 has an outer diameter of 75 mm, a thickness of about 5 mm, and a radial crushing strength of 65 kg/cm 2 . Also, mold 2 is made of shell sand, so 350
It has the property of collapsing when heated to a high temperature of ~400℃.
第２図ｂに示すように、成形型２の両端開口部
にそれぞれホルダ３1，３2を接着、ボルト締め等
により取付けてそれら開口部を密封する。 As shown in FIG. 2b, holders 3 1 and 3 2 are attached to the openings at both ends of the mold 2 by bonding, bolting, etc., and the openings are sealed.
第２図ｃに示すように、炭素繊維およびアルミ
ナ繊維の混合繊維とアルミナゾルを含む成形材料
の水溶液４中に成形型２を浸漬し、真空ポンプ５
により成形型２内に吸引作用を施して成形材料を
成形型２の外周面に所定の厚さに付着させ、成形
体素材６を成形する。この真空ポンプ５による成
形作業は略２分間に亘つて行われる。 As shown in FIG. 2c, the mold 2 is immersed in an aqueous solution 4 of a molding material containing mixed fibers of carbon fibers and alumina fibers and alumina sol, and a vacuum pump 5
A suction action is applied inside the mold 2 to cause the molding material to adhere to the outer peripheral surface of the mold 2 to a predetermined thickness, thereby molding the molded body material 6. This molding operation using the vacuum pump 5 is performed for approximately 2 minutes.
第２図ｄに示すように、成形型２をラバープレ
スの耐圧容器７内に設置し、空圧源８より加圧空
気を耐圧容器７内に供給してラバー９を介し成形
体素材６を成形型２の外周面に10Kg／cm2の圧力を
以て押圧し、これにより成形体素材６の形状を整
え、同時に密度を決定する。 As shown in FIG. 2d, the mold 2 is placed in the pressure container 7 of a rubber press, and pressurized air is supplied from the air pressure source 8 into the pressure container 7 to form the molded material 6 through the rubber 9. The outer peripheral surface of the mold 2 is pressed with a pressure of 10 kg/cm 2 to adjust the shape of the molded body material 6 and determine the density at the same time.
第２図ｅに示すように、成形型２より両ホルダ
３1，３2を取外す。 As shown in FIG. 2e, both holders 3 1 and 3 2 are removed from the mold 2.
第２図ｆに示すように、成形型２を乾燥炉１０
内に設置し、成形体素材６に120℃にて１時間の
乾燥処理を施して水分を蒸発除去する。 As shown in FIG. 2f, the mold 2 is placed in a drying oven 10.
The molded body material 6 is dried at 120° C. for 1 hour to evaporate and remove moisture.
第２図ｇに示すように、成形型２を焼成炉１１
内に設置し、成形型２に350〜400℃にて１時間の
崩壊処理を施す。この崩壊処理により成形型２は
その略50％が崩壊する。残りの略50％は振動を加
える等の手段により破壊除去されるが、この状態
下にあつては成形体素材６は乾燥されて十分な保
形性を有するので変形するようなことはなく、ま
た成形型２の残部にはクラツク等が無数に発生し
ているのでその除去が容易に行われる。 As shown in Figure 2g, the mold 2 is placed in the firing furnace 11.
The mold 2 is disintegrated at 350 to 400°C for 1 hour. Approximately 50% of the mold 2 collapses due to this collapse treatment. The remaining approximately 50% is destroyed and removed by means such as applying vibration, but under this condition, the molded body material 6 is dried and has sufficient shape retention, so it will not deform. Furthermore, since numerous cracks and the like occur in the remaining portion of the mold 2, they can be easily removed.
第２図ｈに示すように、今度は成形体素材６の
みを焼成炉１１内に設置し、成形体素材６に800
℃にて１時間の焼成処理を施す。これによりアル
ミナゾルにより混合繊維が部分的に結合されて第
１図に示す繊維成形体１が得られる。 As shown in FIG. 2h, only the molded body material 6 is placed in the firing furnace 11, and
A calcination treatment is performed at ℃ for 1 hour. As a result, the mixed fibers are partially bonded by the alumina sol, and the fiber molded body 1 shown in FIG. 1 is obtained.
前記成形型２の崩壊処理において、その型２を
100％崩壊させるためにはその厚さを前記実施例
の略半分の2.5mm程度にすればよいが、このよう
に薄く形成すると強度が弱くなつて成形体素材の
成形工程、ラバープレス工程で成形型２が破壊さ
れるおそれがある。前記実施例のように成形型２
の厚さを略５mmに設定することによつて成形体素
材の成形工程等における成形型２の破壊を防止
し、また崩壊処理により略50％の崩壊を達成する
ことができる。 In the disintegration process of the mold 2, the mold 2 is
In order to achieve 100% collapse, the thickness should be reduced to about 2.5 mm, which is approximately half of that in the above example, but if it is made thin like this, the strength will be weakened and it will be difficult to form it in the molding process of the molded body material and the rubber press process. Type 2 may be destroyed. As in the previous embodiment, the mold 2
By setting the thickness to approximately 5 mm, the mold 2 can be prevented from being destroyed during the molding process of the molded body material, and approximately 50% collapse can be achieved through the collapse treatment.
Ｃ 発明の効果
本発明によれば、高温加熱下で崩壊可能な成形
型を用い、その成形型を成形体素材の加熱乾燥後
崩壊除去するので、成形体素材の変形を防止して
繊維成形体の寸法精度を良好にすることができ、
また成形型の引抜き工程を省いて生産能率を向上
させることができる。C Effects of the Invention According to the present invention, a mold that can be disintegrated under high temperature heating is used, and the mold is disintegrated and removed after heating and drying the molded body material, thereby preventing deformation of the molded body material and producing a fiber molded product. It is possible to improve the dimensional accuracy of
Furthermore, production efficiency can be improved by omitting the process of drawing out the mold.
第１図は繊維成形体の斜視図、第２図は繊維成
形体の製造工程説明図である。
１…繊維成形体、２…成形型、４…水溶液、５
…真空ポンプ、６…成形体素材、８…空圧源、１
０…乾燥炉、１１…焼成炉。
FIG. 1 is a perspective view of a fiber molded product, and FIG. 2 is an explanatory diagram of the manufacturing process of the fiber molded product. 1... Fiber molded body, 2... Molding mold, 4... Aqueous solution, 5
... Vacuum pump, 6... Molded body material, 8... Air pressure source, 1
0... Drying oven, 11... Firing oven.
Claims (1)
成形型の両端開口部を密封し、前記成形型を強化
繊維および無機バインダを含む成形材料の水溶液
中に浸漬し、前記成形型内に吸引作用を施すこと
により前記成形材料を前記成形型の外周面に付着
させて成形体素材を成形する工程と；前記成形体
素材を前記成形型に押圧して該成形体素材の形状
を整える工程と；前記成形体素材を前記成形型の
崩壊温度よりも低温で加熱乾燥する工程と；前記
成形型を崩壊温度以上に加熱して該成形型を崩壊
し除去する工程と；前記成形体素材を焼成して前
記無機バインダにより前記強化繊維を部分的に結
合する工程と；を用いることを特徴とする強化用
筒状繊維成形体の製造方法。1. Seal the openings at both ends of an air-permeable cylindrical mold that can collapse under high-temperature heating, immerse the mold in an aqueous solution of a molding material containing reinforcing fibers and an inorganic binder, and suction into the mold. a step of adhering the molding material to the outer peripheral surface of the mold by applying an action to form a molded body material; a step of pressing the molded body material against the mold to adjust the shape of the molded body material; ; heating and drying the molded body material at a temperature lower than the collapse temperature of the mold; heating the mold above the collapse temperature to collapse and remove the mold; firing the molded body material; and partially bonding the reinforcing fibers with the inorganic binder.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61011611A JPS62170441A (en) | 1986-01-22 | 1986-01-22 | Manufacture of cylindrical fibrous molded-body for reinforcement |
| GB8701266A GB2187995B (en) | 1986-01-22 | 1987-01-21 | Process for producing cylindrical reinforcing fibrous molding |
| CA000527875A CA1290562C (en) | 1986-01-22 | 1987-01-21 | Process for producing cylindrical reinforcing fibrous molding |
| US07/006,697 US5135690A (en) | 1986-01-22 | 1987-01-22 | Process for producing cylindrical reinforcing fibrous molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61011611A JPS62170441A (en) | 1986-01-22 | 1986-01-22 | Manufacture of cylindrical fibrous molded-body for reinforcement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62170441A JPS62170441A (en) | 1987-07-27 |
| JPH0425333B2 true JPH0425333B2 (en) | 1992-04-30 |
Family
ID=11782703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61011611A Granted JPS62170441A (en) | 1986-01-22 | 1986-01-22 | Manufacture of cylindrical fibrous molded-body for reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62170441A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2675642B2 (en) * | 1989-11-02 | 1997-11-12 | ダイセル化学工業株式会社 | Easily disintegrating fiber molding and method for producing the same |
| JPH0775770B2 (en) * | 1991-05-27 | 1995-08-16 | 四国化成工業株式会社 | Method for producing preform for fiber-reinforced metal matrix composite material |
-
1986
- 1986-01-22 JP JP61011611A patent/JPS62170441A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62170441A (en) | 1987-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR970001557B1 (en) | Method of manufacturing an object of powdered material by isostatic pressing | |
| JPH0425333B2 (en) | ||
| US5135690A (en) | Process for producing cylindrical reinforcing fibrous molding | |
| US4931242A (en) | Method of forming shaped-body to be sintered | |
| JPH0425334B2 (en) | ||
| JPS62192545A (en) | Method for manufacturing reinforcing cylindrical fiber molded product | |
| JPH0668140B2 (en) | Method for manufacturing tubular fiber molding for reinforcement | |
| JPH0428769B2 (en) | ||
| JP3074004B2 (en) | Manufacturing method of ceramic products | |
| JPH0428771B2 (en) | ||
| JPH02156030A (en) | Method for molding preform for metal composite material | |
| JPS63259040A (en) | Method for producing reinforcing cylindrical fiber molded product | |
| JPS60234736A (en) | Vacuum casting method using consumable master pattern | |
| JP2000141334A (en) | Manufacture of ceramic molding | |
| JP3136653B2 (en) | Dry preform manufacturing method | |
| JP2553916B2 (en) | Method for manufacturing cast ceramic body | |
| JPH02225004A (en) | Solid cast molding method | |
| JPH0668143B2 (en) | Method for manufacturing tubular fiber molding for reinforcement | |
| JPS62196129A (en) | Tubular reinforcing fiber molded body and manufacture thereof | |
| SU1657385A1 (en) | Method of making gypsum moulds | |
| JPH0381059A (en) | Manufacture of metal based composite material | |
| JPH07293B2 (en) | Mold for hydrostatic pressing and molding method using the same | |
| JPS6350185B2 (en) | ||
| JPH11156946A (en) | Resin molding method | |
| JPH034007B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |