JPH0239647Y2 - - Google Patents
Info
- Publication number
- JPH0239647Y2 JPH0239647Y2 JP8926186U JP8926186U JPH0239647Y2 JP H0239647 Y2 JPH0239647 Y2 JP H0239647Y2 JP 8926186 U JP8926186 U JP 8926186U JP 8926186 U JP8926186 U JP 8926186U JP H0239647 Y2 JPH0239647 Y2 JP H0239647Y2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing material
- material preform
- recess
- preform
- molding device
- 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
Links
- 239000012779 reinforcing material Substances 0.000 claims description 23
- 239000000835 fiber Substances 0.000 claims description 15
- 239000000919 ceramic Substances 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 15
- 239000011159 matrix material Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000013329 compounding Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、溶浸法によつて繊維強化複合材を
製造する際に用いる複合化モールド装置に関す
る。[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a composite molding device used when manufacturing fiber-reinforced composite materials by an infiltration method.
無機あるいはセラミツク系の繊維、ウイスカー
などを強化物質とする繊維強化金属複合材
（FRM）を製造するための手段として、予め賦形
された強化材の集合プリフオームにマトリツクス
溶融金属を真空または加圧下に強制浸透したのち
凝固する方法が有用されている。この方法は溶浸
法といわれるもので、複合化の操作は金型内部に
強化材プリフオームをセツトしてマトリツクス金
属の溶湯を注入し、引続きパンチにより一方向あ
るいは上下方向から加圧しながら強化材プリフオ
ームの骨格組織中にマトリツクス金属を含浸し凝
固することによりおこなわれる。
As a means to produce fiber-reinforced metal composites (FRM) using inorganic or ceramic fibers, whiskers, etc. as reinforcing substances, matrix molten metal is applied under vacuum or pressure to an aggregate preform of pre-shaped reinforcing materials. A method of coagulating after forced penetration is useful. This method is called the infiltration method, and the composite operation involves setting a reinforcing material preform inside a mold, injecting molten matrix metal, and then pressing the reinforcing material preform in one direction or from above and below with a punch. This is done by impregnating the matrix metal into the skeletal tissue and solidifying it.
ところが、複合化時、強化材プリフオームを単
に下パンチまたは底盤上に載置した状態でマトリ
ツクス金属溶湯を注入すると、浮力の関係で比重
の軽い強化材プリフオームが溶湯中を浮上して位
置変動を起こす。このような現象が生じると、マ
トリツクスの含浸不良、局部的凝固、複合不均質
に基づく形状変形、組織破壊など種々の複合欠陥
をもたらす因となる。 However, when forming a composite, if the reinforcing material preform is simply placed on the lower punch or bottom plate and molten matrix metal is injected, the reinforcing material preform, which has a lighter specific gravity, floats up in the molten metal due to buoyancy, causing positional fluctuations. . When such a phenomenon occurs, it causes various complex defects such as poor impregnation of the matrix, local solidification, shape deformation due to complex heterogeneity, and tissue destruction.
上記の問題については、強化材プリフオームの
位置づれ防止に有効な複合化モールド装置とし
て、金型底盤上にプリフオームをセンターセツト
するための凹溝を備える炭素質板もしくは多孔質
セラミツク板を固定設置した構造をすでに提案し
た（実願昭60−90959号）。 To solve the above problem, a carbonaceous plate or porous ceramic plate with a groove for center-setting the preform was fixedly installed on the bottom of the mold as a composite molding device that is effective in preventing the reinforcing material preform from shifting. The structure has already been proposed (Utility Application No. 60-90959).
しかしながら、上記先願の構造による場合は強
化材プリフオームの位置固定は十分に達成される
が、複合段階で予熱した強化材プリフオームがセ
ンターセツト部材と接する底面で局部的な温度低
下を生じ、往々にしてこの部位に亀裂あるいは破
損などの複合欠陥をもたらす。これは強化材プリ
フオームの予熱温度をマトリツクス金属の溶湯温
度に近似させるために生じる強化材プリフオーム
とセンターセツト部材との著しい温度差に基づく
もので、FRMの複合条件から派生する不可避的
な問題点である。
However, in the case of the structure of the above-mentioned prior application, although the position of the reinforcing material preform is sufficiently fixed, a localized temperature drop occurs at the bottom surface where the reinforcing material preform, which has been preheated in the compositing stage, contacts the center set member, and often This results in complex defects such as cracks or breakage in the lever area. This is due to the significant temperature difference between the reinforcing material preform and the centerset member that occurs in order to approximate the preheating temperature of the reinforcing material preform to the molten metal temperature of the matrix metal, and is an unavoidable problem derived from the complex conditions of FRM. be.
この考案は、上記の問題点を解消する目的で先
願（特願昭60−90959号）の考案に一層の構造改
良を加えたもので、提案される複合化モールド装
置の主要な構成は、金型の下パンチもしくは底盤
上に、強化材プリフオームを固定するための凹部
を有し該凹部内にセラミツク繊維のマツトを敷い
たセツテイング治具を設置してなる点にある。
This invention is a further structural improvement of the invention of the earlier application (Japanese Patent Application No. 60-90959) for the purpose of solving the above-mentioned problems.The main structure of the proposed composite molding device is as follows: A setting jig is provided on the lower punch or bottom plate of the mold, which has a recess for fixing the reinforcing material preform, and a setting jig in which a mat of ceramic fiber is laid in the recess.
複合化に際し、強化材プリフオームはその底部
がセツテイング治具の凹部に嵌り込む状態で固定
化され、同時に、介在するセラミツク繊維マツト
の断熱作用で強化材プリフオームは複合化終結ま
で局部的な温度低下を起すことなく十分に保温さ
れる。
During compositing, the reinforcing material preform is fixed with its bottom part fitting into the recess of the setting jig, and at the same time, due to the heat insulating effect of the intervening ceramic fiber mat, the reinforcing material preform maintains a local temperature drop until the completion of compositing. It keeps you warm enough without waking you up.
以下、この考案を図示の実施例に基づいて説明
する。
This invention will be explained below based on illustrated embodiments.
図は、溶浸法を用いてヘツド部位をFRM化す
るピストンの溶湯鍛造例を示した複合化モールド
装置の縦断面図で、１は金型、２は加圧用の上パ
ンチ、３は下パンチもしくは底盤、４はセツテイ
ング治具である。セツテイング治具４は強化材プ
リフオーム５を固定するための凹部を有する部材
で、金型１と同材質の鋼材あるいは炭素、炭化け
い素、アルミナ等のセラミツク材により構成され
ている。凹部の形状寸法は、セツトすべき強化材
プリフオーム５の形体に適合するように切削加工
して形成される。形成する凹部の深さは、強化材
プリフオームの高さの10〜20％程度とすることが
適当である。 The figure is a longitudinal cross-sectional view of a composite molding device showing an example of molten metal forging of a piston whose head part is made into FRM using the infiltration method. 1 is a mold, 2 is an upper punch for pressurizing, and 3 is a lower punch. Or the bottom plate, 4 is a setting jig. The setting jig 4 is a member having a recess for fixing the reinforcing material preform 5, and is made of the same steel as the mold 1 or a ceramic material such as carbon, silicon carbide, alumina, or the like. The shape and dimensions of the recess are formed by cutting so as to match the shape of the reinforcing material preform 5 to be set. It is appropriate that the depth of the recess to be formed is about 10 to 20% of the height of the reinforcing material preform.
６は、セツテイング治具４の凹部内に敷かれた
セラミツク繊維のマツトである。マツト６を形成
するセラミツク繊維は熱伝導度が低く、かつマト
リツクス金属の溶湯に対して不活性な繊維材料を
選定することが重要であり、アルミナ、シリカ、
シリカ・アルミナ系、炭化けい素あるいは炭素の
繊維薄板が有効に使用される。繊維薄板は、長繊
維織布あるいは短繊維の集合体として形成され、
厚さは１〜３mm程度とするのが適当である。 Reference numeral 6 denotes a ceramic fiber mat laid in the recess of the setting jig 4. It is important to select a fiber material that has low thermal conductivity and is inert to the molten matrix metal for the ceramic fibers forming the mat 6, such as alumina, silica, etc.
Silica-alumina based, silicon carbide or carbon fiber sheets are effectively used. The fiber laminate is formed as a long fiber woven fabric or an aggregate of short fibers,
It is appropriate that the thickness be about 1 to 3 mm.
複合化に際しては、まず予めマトリツクス金属
溶湯と同水準の温度に加熱した強化材プリフオー
ム５をセツテイング治具４の凹部に嵌め込むよう
にセツトする。セツト後は、強化材プリフオーム
５の底面がセラミツク繊維のマツト６を介してセ
ツテイング治具４に接する形態となつて安定的に
固定される。ついで、セツテイング治具４を下パ
ンチ３上に設置したのち金型１内にマトリツクス
金属の溶湯７を注入し、直ちに上パンチ２と下パ
ンチ３に圧力を加えて溶湯鍛造法により強化材プ
リフオーム５の組織内部にマトリツクス金属溶湯
を圧入する。 When compounding, first, a reinforcing material preform 5, which has been heated in advance to the same temperature as the molten matrix metal, is fitted into the recess of the setting jig 4. After setting, the bottom surface of the reinforcing material preform 5 comes into contact with the setting jig 4 via the ceramic fiber mat 6, and is stably fixed. Next, after setting the setting jig 4 on the lower punch 3, a molten matrix metal 7 is poured into the mold 1, pressure is immediately applied to the upper punch 2 and the lower punch 3, and the reinforcing material preform 5 is formed by the molten metal forging method. A molten matrix metal is press-fitted into the structure of the matrix.
上記の複合化過程を通じて強化材プリフオーム
の位置変動は防止されると共に、セラミツク繊維
マツトの断熱作用で強化材プリフオームの底部は
十分保温された状態で溶浸が完結する。また、マ
トリツクス金属の侵入により強化材プリフオーム
の組織内部から圧出されるガス成分は、セラミツ
ク繊維のマツト中に速やかに吸蔵捕捉される。
Through the above-described compounding process, positional fluctuations of the reinforcing material preform are prevented, and the infiltration is completed with the bottom of the reinforcing material preform sufficiently kept warm by the heat insulating effect of the ceramic fiber mat. Further, gas components forced out from inside the structure of the reinforcing material preform due to the intrusion of the matrix metal are quickly occluded and captured in the mat of ceramic fibers.
これらの効果が相乗的に働いて、常に複合欠陥
のない高品質の繊維強化金属複合材を製造するこ
とができる。 These effects work synergistically to produce high-quality fiber-reinforced metal composites that are always free from composite defects.
図面は、この考案に係る複合化モールド装置の
一実施例を示した縦断面図である。
１……金型、２……上パンチ、３……下パンチ
もしくは底盤、４……セツテイング治具、５……
強化材プリフオーム、６……セラミツク繊維マツ
ト、７……マトリツクス金属の溶湯。
The drawing is a longitudinal sectional view showing an embodiment of the composite molding device according to the invention. 1... Mold, 2... Upper punch, 3... Lower punch or bottom plate, 4... Setting jig, 5...
Reinforcement preform, 6...ceramic fiber mat, 7...molten matrix metal.
Claims (1)
材プリフオーム５を固定するための凹部を有し
該凹部内にセラミツク繊維のマツト６を敷いた
セツテイング治具４を設置してなる構造の複合
化モールド装置。 ２ セラミツク繊維のマツトが、アルミナ、シリ
カ、シリカ・アルミナ系、炭化けい素あるいは
炭素の繊維薄板により構成される実用新案登録
請求の範囲第１項記載の複合化モールド装置。[Claims for Utility Model Registration] 1. A setting jig 4 having a recess for fixing the reinforcing material preform 5 on the lower punch or bottom plate 3 of the mold 1, and having a ceramic fiber mat 6 spread within the recess. A composite molding device with a structure consisting of: 2. The composite molding device according to claim 1, wherein the ceramic fiber mat is composed of a thin fiber plate of alumina, silica, silica-alumina, silicon carbide, or carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8926186U JPH0239647Y2 (en) | 1986-06-13 | 1986-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8926186U JPH0239647Y2 (en) | 1986-06-13 | 1986-06-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62202941U JPS62202941U (en) | 1987-12-24 |
| JPH0239647Y2 true JPH0239647Y2 (en) | 1990-10-24 |
Family
ID=30948091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8926186U Expired JPH0239647Y2 (en) | 1986-06-13 | 1986-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0239647Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10434568B2 (en) * | 2012-04-12 | 2019-10-08 | Loukus Technologies, Inc. | Thermal isolation spray for casting articles |
| KR101444354B1 (en) * | 2013-01-21 | 2014-09-24 | 주식회사 티앤머티리얼스 | Mold which is useful to pressure-impregnation process |
-
1986
- 1986-06-13 JP JP8926186U patent/JPH0239647Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62202941U (en) | 1987-12-24 |
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