JPH0645807B2 - Extrusion molding method for honeycomb structure - Google Patents
Extrusion molding method for honeycomb structureInfo
- Publication number
- JPH0645807B2 JPH0645807B2 JP8276088A JP8276088A JPH0645807B2 JP H0645807 B2 JPH0645807 B2 JP H0645807B2 JP 8276088 A JP8276088 A JP 8276088A JP 8276088 A JP8276088 A JP 8276088A JP H0645807 B2 JPH0645807 B2 JP H0645807B2
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb
- boss
- honeycomb structure
- extruded
- compound
- 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
- 238000000034 method Methods 0.000 title claims description 11
- 238000001125 extrusion Methods 0.000 title claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 150000001875 compounds Chemical class 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 4
- 238000004898 kneading Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 SUS310 Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Extrusion Of Metal (AREA)
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は過給機用ロータ等として用いるハニカム構造体
の押出し成形方法に関する。The present invention relates to an extrusion molding method for a honeycomb structure used as a rotor for a supercharger or the like.
（従来の技術） 過給機用ロータセル、排気ガス浄化用の触媒担体或いは
熱交換器等として、複数の隔壁によって内部を仕切った
ハニカム構造体が使用されている。(Prior Art) As a rotor cell for a supercharger, a catalyst carrier for purifying exhaust gas, a heat exchanger, or the like, a honeycomb structure whose inside is partitioned by a plurality of partition walls is used.
斯かるハニカム構造体としてはセラミック製及び金属製
のものがあり、セラミック製ハニカム構造体としては特
公昭６２−２０８８１号に開示されるようにセラミック
コンパウンドを押出し成形する方法が知られており、金
属製ハニカム構造体としては一般にロストワックス法に
よって製作している。Such honeycomb structures include those made of ceramics and metals, and as the honeycomb structures made of ceramics, a method of extruding a ceramic compound as disclosed in Japanese Patent Publication No. 62-20881 is known. The manufactured honeycomb structure is generally manufactured by the lost wax method.
（発明が解決しようとする問題点） 金属製ハニカム構造体は、ロストワックス法により単品
製作しなければならず、製作に極めて手間がかかる。(Problems to be Solved by the Invention) The metal honeycomb structure has to be manufactured as a single piece by the lost wax method, which is extremely troublesome to manufacture.
（問題点を解決するための手段） 上記問題点を解決すべく本発明は、ハニカム構造体を押
出し成形するにあたり、金属粉末とバインダーとを混練
して流動性のあるコンパウンドとし、このコンパウンド
を加圧して成形ヘッドから上方へハニカム状に押出すよ
うにした。(Means for Solving Problems) In order to solve the above problems, the present invention, when extruding a honeycomb structure, kneads a metal powder and a binder into a fluid compound, and adds this compound. A pressure was applied to extrude upward from the molding head in a honeycomb shape.
（作用） コンパウンドを上方に押出すようにしたため、押出し方
向の伸びを抑制することができ、特にボス部を同調して
押出すことで歪み、撓み等も有効に防止でき、更にボス
部に荷重をかけつつ押出すようにすればヒケ等の不良も
なくなる。(Function) Since the compound is extruded upward, it is possible to suppress the elongation in the extruding direction. In particular, when the boss is extruded in synchronism, distortion and bending can be effectively prevented, and the load on the boss can be effectively prevented. If it is extruded while being applied, defects such as sink marks are eliminated.
（実施例） 以下に本発明の実施例を添付図面に基づいて説明する。(Example) Below, the Example of this invention is described based on an accompanying drawing.
第１図は本発明方法を実施するための押出し成形装置の
成形ヘッド断面図、第２図は同成形ヘッドの平面図であ
り、成形ヘッドの下部は筒状金属ブロック１にて構成さ
れ、この金属ブロック１の側端開口は蓋体２にて閉塞さ
れ、また金属ブロック１内には下方から調整芯３が挿入
され、この調整芯３は金属ブロック１に螺合せしめると
ともに金属ブロック１よりも下方に突出した調整芯３下
端にハンドル４を取付け、ハンドル４を回転操作するこ
とで、調整芯３が上下動するようにしている。FIG. 1 is a sectional view of a molding head of an extrusion molding apparatus for carrying out the method of the present invention, and FIG. 2 is a plan view of the molding head. The lower part of the molding head is composed of a tubular metal block 1. The side end opening of the metal block 1 is closed by a lid body 2, and an adjustment core 3 is inserted into the metal block 1 from below. The adjustment core 3 is screwed into the metal block 1 and is more than the metal block 1. The handle 4 is attached to the lower end of the adjusting core 3 protruding downward, and the adjusting core 3 is moved up and down by rotating the handle 4.
一方、成形ヘッドの上部には外側均圧管５及び内側均圧
管６が設けられ、外側均圧管５と内側均圧管６との間を
製品となるハニカム部を成形するための外側流路Ｐ１、
内側均圧管６の内方をハニカム部内周面に接触するボス
部を成形するための内側流路Ｐ２としている。On the other hand, an outer pressure-equalizing pipe 5 and an inner pressure-equalizing pipe 6 are provided on the upper part of the molding head, and an outer flow path P1 for molding a honeycomb portion to be a product is provided between the outer pressure-equalizing pipe 5 and the inner pressure-equalizing pipe 6.
The inner side of the inner pressure equalizing pipe 6 serves as an inner flow path P2 for forming a boss portion that contacts the inner peripheral surface of the honeycomb portion.
また、外側均圧管５の上下端にはフランジが形成され、
下のフランジと金属ブロック１上面との間で多孔板７を
挟持している。多孔板７には第３図に示すように金属粉
末とバインダーとを混練してなるコンパウンドが通過す
る孔８…が複数形成されている。そしてこれら孔のうち
流量が多くなる部分つまりスクリュー９に近い部分に形
成した孔８ａの径は流量が少くなる部分つまりスクリュ
ーから遠い部分に形成した孔８ｂの径よりも小さくし、
成形ヘッド上端に設けた金型１０全面に均等な流量でコ
ンパウンドが押出されるようにしている。Further, flanges are formed on the upper and lower ends of the outer pressure equalizing pipe 5,
The perforated plate 7 is sandwiched between the lower flange and the upper surface of the metal block 1. As shown in FIG. 3, the porous plate 7 is provided with a plurality of holes 8 through which a compound formed by kneading a metal powder and a binder passes. The diameter of the hole 8a formed in the portion where the flow rate is large, that is, the portion close to the screw 9 is smaller than the diameter of the hole 8b formed in the portion where the flow rate is small, that is, the portion far from the screw.
The compound is extruded at a uniform flow rate over the entire surface of the mold 10 provided at the upper end of the molding head.
また、多孔板７の中央には筒状部１１を形成し、この筒
状部１１下方に前記調整芯３の上端を臨ませ、ハンドル
４の操作で調整芯３を上下動させることで内側流路Ｐ２
への流量を変化させる。更に筒状部１１の上半部には中
子ダイス１２を螺着し、この中子ダイス１２に前記内側
均圧管６の下端を螺着し、内側均圧管６の上端を金型１
０内周面に係着せしめている。Further, a tubular portion 11 is formed in the center of the perforated plate 7, the upper end of the adjustment core 3 is exposed below the tubular portion 11, and the handle 4 is operated to move the adjustment core 3 up and down to cause an inward flow. Road P2
Vary the flow rate to. Further, a core die 12 is screwed onto the upper half of the tubular portion 11, the lower end of the inner pressure equalizing pipe 6 is screwed onto the core die 12, and the upper end of the inner pressure equalizing pipe 6 is attached to the mold 1.
0 It is attached to the inner peripheral surface.
ここで金型１０は平面図である第２図にも示すようにハ
ニカム部を成形するための内側部１０ａと製品の外周部
を成形するための外輪１０ｂとからなり、この外輪１０
ｂは金型１０の固定金具１３に径方向に挿入した調整ボ
ルト１４の内端に当接している。而して調整ボルト１４
を締めたり或いは緩めたりすることで外輪１０ｂは径方
向にずれ、製品外周部の肉厚が調整される。As shown in FIG. 2, which is a plan view, the mold 10 is composed of an inner part 10a for molding the honeycomb part and an outer ring 10b for molding the outer peripheral part of the product.
b is in contact with the inner end of the adjusting bolt 14 which is inserted into the fixing metal fitting 13 of the mold 10 in the radial direction. Therefore, adjusting bolt 14
By tightening or loosening, the outer ring 10b is displaced in the radial direction, and the wall thickness of the outer peripheral portion of the product is adjusted.
更に、前記内側均圧管６内には上方から芯金１５を挿入
している。芯金１５は大径の下芯金１５ａと小径の上芯
金１５ｂとからなり、下芯金１５ａはその下端が前記多
孔板７の中央に固着され、上芯金１５ｂは下芯金１５ａ
と連結部材１６を介して下芯金１５ａに着脱可能に連結
され、更に上芯金１５ｂにはフランジ部を有するガイド
部材１７が摺動自在に外嵌されている。Further, a cored bar 15 is inserted into the inner pressure equalizing pipe 6 from above. The core metal 15 is composed of a large-diameter lower core metal 15a and a small-diameter upper core metal 15b, the lower end of the lower core metal 15a is fixed to the center of the porous plate 7, and the upper core metal 15b is the lower core metal 15a.
And a guide member 17 having a flange portion are slidably fitted on the upper core metal 15b.
以上の如き構成からなる成形装置を用いて過給機ロータ
の如きハニカム構造体を成形する方法を以下に述べる。A method of forming a honeycomb structure such as a supercharger rotor using the forming apparatus having the above-described structure will be described below.
上記コンパウンドを得るには金属粉末を７０〜８５wt
%、メチルセルロースやワックスなどの成形用バインダ
ーを１５〜２０wt%、水あるいは溶剤を５〜１０wt%用意
し、これらが均一に混ざるまでブレンダーにかけた後加
圧混練すれば良い。用いる金属粉末としては例えば平均
粒径１０μｍ以下の金属アトマイズ粉末が適当である。
具体的にはＳＵＳ３１０、サーメット、インコネルなど
の市販の耐熱合金粉末が考えられる。To obtain the above compound, 70-85 wt% of metal powder
%, 15 to 20 wt% of a molding binder such as methyl cellulose and wax, and 5 to 10 wt% of water or a solvent, and a blender is applied until they are uniformly mixed, followed by kneading under pressure. As the metal powder used, for example, a metal atomized powder having an average particle size of 10 μm or less is suitable.
Specifically, commercially available heat-resistant alloy powders such as SUS310, cermet and Inconel can be considered.
そして、以上の如き構成からなるコンパウンドは金属ブ
ロック１内においてその流動方向を上方に変化し、その
一部は多孔板７の孔８を介して外側流路Ｐ１に入り、残
りは調整芯３と多孔板７の筒状部１１の隙間を通って内
側流路Ｐ２に入る。Then, the compound having the above-described structure changes its flow direction upward in the metal block 1, a part of the compound enters the outer flow path P1 through the holes 8 of the perforated plate 7, and the rest is the adjusting core 3. It enters the inner flow path P2 through the gap of the tubular portion 11 of the porous plate 7.
外側流路Ｐ１に入ったコンパウンドは順次上方へ押し上
げられ、金型１０を通過することで第４図に示すように
ハニカム部Ｗ１として上方へ押出される。一方内側流路
Ｐ２に入ったコンパウンドはボス部Ｗ２として上方へ押
出される。ここでボス部Ｗ２は上方へ押出される際にガ
イド部材１７とともに上昇し、このガイド部材１７は上
芯金１５ｂに外嵌しているため、ボス部Ｗ２が上昇する
ときにボス部Ｗ２にねじれ、倒れ等が生じることがな
い。そして、ハニカム部Ｗ１については、上方へ押出さ
れる際にその内周面がボス部Ｗ２外周面に圧着し、ボス
部Ｗ２によってハニカム部Ｗ１のねじれ、倒れ等が防止
できる。この圧着は、下芯金１５ａの径よりも外径の大
きな連結部材１６を、２図に示す位置に設置することに
より、ボス部に生じた、径方向外向きの圧力に起因す
る。The compound that has entered the outer flow path P1 is sequentially pushed upward and passes through the mold 10 to be extruded upward as a honeycomb portion W1 as shown in FIG. On the other hand, the compound that has entered the inner flow path P2 is extruded upward as the boss W2. Here, the boss portion W2 rises together with the guide member 17 when it is pushed out upward, and since this guide member 17 is externally fitted to the upper core metal 15b, when the boss portion W2 rises, the boss portion W2 is twisted. It does not fall down. The inner peripheral surface of the honeycomb portion W1 is pressed against the outer peripheral surface of the boss portion W2 when the honeycomb portion W1 is extruded upward, so that the boss portion W2 can prevent the honeycomb portion W1 from twisting, falling, and the like. This crimping is caused by the radially outward pressure generated in the boss portion by installing the connecting member 16 having an outer diameter larger than that of the lower core metal 15a at the position shown in FIG.
尚、ハニカム部Ｗ１の変形を有効に防止するにはハニカ
ム部Ｗ１の上昇速度とボス部Ｗ２の上昇速度が略々等し
いことが要求される。この上昇速度を調整するにはハン
ドル４を操作して内側流路Ｐ２へのコンパウンドの流入
量をコントロールすればよい。In order to effectively prevent the deformation of the honeycomb portion W1, it is required that the rising speed of the honeycomb portion W1 and the rising speed of the boss portion W2 are substantially equal. To adjust the rising speed, the handle 4 may be operated to control the amount of the compound flowing into the inner flow path P2.
以上の如くしてハニカム部Ｗ１とボス部Ｗ２を所定の長
さまで押出したならば、上芯金１５ｂを引き抜きピアノ
線等によりハニカム部Ｗ１とボス部Ｗ２を径方向に切断
し、これを例えばマイクロ波により乾燥せしめる。これ
に加工を施した後、焼結し目的とする過給機用ロータ等
の製品とする。After the honeycomb portion W1 and the boss portion W2 are extruded to a predetermined length as described above, the upper core metal 15b is pulled out and the honeycomb portion W1 and the boss portion W2 are radially cut by a piano wire or the like, and this is cut with, for example, a micro Dry by waves. After this is processed, it is sintered to obtain a desired product such as a rotor for a supercharger.
第５図は別実施例を示す第４図と同様の断面図であり、
この実施例にあってはガイド部材１７上に重り１８を重
ね、ガイド部材１７と一体的に芯金１５に沿って上下動
するようにし、ボス部Ｗ２を上方に押出す際に、重り１
８の荷重がボス部Ｗ２に上方から作用するようにしてい
る。FIG. 5 is a sectional view similar to FIG. 4 showing another embodiment,
In this embodiment, a weight 18 is placed on the guide member 17 so as to move up and down along the cored bar 15 integrally with the guide member 17, and when the boss W2 is pushed upward, the weight 1
The load of 8 acts on the boss W2 from above.
而して、この別実施例にあっては、大径の連結部材１６
によって内側流路Ｐ２の連結部材１６下方部分における
コンパウンドの流れは矢印ａ方向に、また重り１８の荷
重が矢印ｂ方向に作用し、結局これらの力によって連結
部材１６の外側位置においてハニカム部Ｗ１の内周部に
矢印ｃ方向の力が作用し、ハニカム部Ｗ１は金型１０に
密着した状態で上方へ押上げられ、ハニカム部Ｗ１の内
周部にヒケ等が生じることがなくなる。Thus, in this alternative embodiment, the large diameter connecting member 16
The flow of the compound in the lower part of the connecting member 16 of the inner flow path P2 acts in the direction of arrow a, and the load of the weight 18 acts in the direction of arrow b. A force in the direction of arrow c acts on the inner peripheral portion, and the honeycomb portion W1 is pushed up in the state of being in close contact with the mold 10, so that the inner peripheral portion of the honeycomb portion W1 is free from sink marks and the like.
尚、重り１８によるボス部Ｗ２への圧力は、１．４Kg/c
m2〜２．８Kg/cm2の範囲とするのが好ましい。これは
１．４Kg/cm2未満の場合にはハニカム部Ｗ１の内周部を
金型に密着されるに足る力が作用せず、２．８Kg/cm2を
越えると成形品が変形しやすくなることによる。The pressure applied to the boss W2 by the weight 18 is 1.4 kg / c.
It is preferably in the range of m 2 to 2.8 Kg / cm 2 . This is because when it is less than 1.4 kg / cm 2, a force sufficient to make the inner peripheral portion of the honeycomb portion W1 adhere to the mold does not act, and when it exceeds 2.8 kg / cm 2 , the molded product is easily deformed. It depends.
（発明の効果） 以上の発明は以下の如き効果を発揮する。(Effects of the Invention) The above invention exhibits the following effects.
先ず、ハニカム構造体を押出し成形するにあたり、コン
パウンドを上向きに押出すようにしたので、成形体の径
方向の歪み、撓み、及び押出し方向の伸びを抑制でき
る。First, when the honeycomb structure is extruded and molded, the compound is extruded upward, so that it is possible to suppress radial distortion, flexure, and elongation in the extruding direction of the molded body.
また、ハニカム部を押出すにあたり、その内側にボス部
を圧着同調して押出すようにしたので、単にハニカム部
を押出す場合に比べ、ハニカム部の歪み、撓み、等の変
形を有効に防止することができる。In addition, when the honeycomb part is extruded, the boss part is pressed in synchronization with the inside of the extruded part so that the honeycomb part is effectively prevented from being deformed such as distortion, bending, etc. as compared with the case of simply extruding the honeycomb part. can do.
更にボス部に荷重をかけつつ上方へ押出すようにしたの
で、ハニカム部内周部に外方への力が作用し、ハニカム
部内周部が金型に密着した状態で押出され、ヒケ等が生
じることがない。Further, since the boss portion is pushed upward while applying a load, an outward force is applied to the inner peripheral portion of the honeycomb portion, and the inner peripheral portion of the honeycomb portion is extruded in a state of being in close contact with the mold, causing a sink mark or the like. Never.
第１図は本発明方法を実施する成形装置の成形ヘッドの
断面図、第２図は同成形ヘッドの平面図、第３図は多孔
板の平面図、第４図は作用を説明した成形ヘッド要部の
断面図、第５図は別実施例を示す図である。。 尚、図面中、３は調整芯、５は外側均圧管、６は内側均
圧管、７は多孔板、９はスクリュー、１０は金型、１５
は芯金、１８は重りである。FIG. 1 is a sectional view of a molding head of a molding apparatus for carrying out the method of the present invention, FIG. 2 is a plan view of the molding head, FIG. 3 is a plan view of a perforated plate, and FIG. FIG. 5 is a sectional view of the main part, and FIG. 5 is a view showing another embodiment. . In the drawings, 3 is an adjusting core, 5 is an outer pressure equalizing pipe, 6 is an inner pressure equalizing pipe, 7 is a perforated plate, 9 is a screw, 10 is a mold, and 15
Is a core metal and 18 is a weight.
Claims (3)
ンパウンドをスクリューによって加圧し、この加圧され
たコンパウンドを成形ヘッドから上向きにハニカム状に
押出すようにしたことを特徴とするハニカム構造体の押
出し成形方法。1. A honeycomb structure characterized in that a compound obtained by kneading a metal powder and a binder is pressed by a screw, and the pressed compound is extruded upward from a molding head into a honeycomb shape. Extrusion molding method.
カム部と、このハニカム部内周面に接触する内側のボス
部に分けて行い、ボス部の押出し速度をハニカム部の押
出し速度に合せるようにしたことを特徴とする特許請求
の範囲第１項記載のハニカム構造体の押出し成形方法。2. The extrusion from the molding head is performed separately for the outer honeycomb portion and the inner boss portion that contacts the inner peripheral surface of the honeycomb portion, and the extrusion speed of the boss portion is adjusted to the extrusion speed of the honeycomb portion. The extrusion molding method for a honeycomb structure according to claim 1, wherein
つつ押出すようにしたことを特徴とする特許請求の範囲
第２項記載のハニカム構造体の押出し成形方法。3. The extrusion molding method for a honeycomb structure according to claim 2, wherein the boss is extruded while applying a load from above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8276088A JPH0645807B2 (en) | 1988-04-04 | 1988-04-04 | Extrusion molding method for honeycomb structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8276088A JPH0645807B2 (en) | 1988-04-04 | 1988-04-04 | Extrusion molding method for honeycomb structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01255606A JPH01255606A (en) | 1989-10-12 |
| JPH0645807B2 true JPH0645807B2 (en) | 1994-06-15 |
Family
ID=13783398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8276088A Expired - Lifetime JPH0645807B2 (en) | 1988-04-04 | 1988-04-04 | Extrusion molding method for honeycomb structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645807B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007500601A (en) * | 2003-07-30 | 2007-01-18 | コーニング インコーポレイテッド | Metal honeycomb substrate for chemical and thermal applications |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845381B (en) * | 2011-06-29 | 2014-07-02 | 龚雅萍 | Automatic assembling device of squid jigger hook needle bundle |
-
1988
- 1988-04-04 JP JP8276088A patent/JPH0645807B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007500601A (en) * | 2003-07-30 | 2007-01-18 | コーニング インコーポレイテッド | Metal honeycomb substrate for chemical and thermal applications |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01255606A (en) | 1989-10-12 |
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