JP2000005811A - Manufacture of aluminum extrusion member - Google Patents
Manufacture of aluminum extrusion memberInfo
- Publication number
- JP2000005811A JP2000005811A JP10177091A JP17709198A JP2000005811A JP 2000005811 A JP2000005811 A JP 2000005811A JP 10177091 A JP10177091 A JP 10177091A JP 17709198 A JP17709198 A JP 17709198A JP 2000005811 A JP2000005811 A JP 2000005811A
- Authority
- JP
- Japan
- Prior art keywords
- bearing face
- aluminum
- bearing surface
- aluminum extrusion
- dlc film
- 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
Landscapes
- Extrusion Of Metal (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、アルミサッシの
窓枠等に使用されるアルミ押出形材の製造法に係り、詳
記すれば、ダイス目の形成が軽減し、且つ鏡面に近い外
観が得られるアルミ押出形材の製造法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an extruded aluminum material used for an aluminum sash window frame and the like. The present invention relates to a method for producing an obtained extruded aluminum material.
【０００２】[0002]
【従来の技術】アルミ押出形材は、アルミサッシの窓枠
等として広く使用されている。従来、このアルミ押出形
材は、アルミ押出金型を使用する押出成形により製造さ
れていた。しかしながら、上記従来法によると、アルミ
押出形材の長さ方向に多数のダイス目が形成され、外観
が悪くなる問題があった。2. Description of the Related Art Extruded aluminum members are widely used as window frames for aluminum sashes. Conventionally, this aluminum extruded profile has been manufactured by extrusion using an aluminum extrusion die. However, according to the above-mentioned conventional method, a large number of dice are formed in the length direction of the extruded aluminum material, and there is a problem that the appearance is deteriorated.
【０００３】このダイス目を除去するには、従来は、人
手により研磨するとか、コ−テイングして傷を隠す等の
方法により行っていたが、これが極めて厄介な作業であ
ったので、アルミ押出形材がコスト高になる問題があっ
た。そのため、ダイス目を除去したアルミ押出形材は、
ダイス目が形成されているアルミ押出形材の数倍程度の
価格で取引されている。[0003] In order to remove the dice, it has been conventionally carried out by a method such as polishing by hand or coating to hide the scratches. There was a problem that the cost of the shape was high. Therefore, the extruded aluminum bars with the die removed are
It is traded at a price several times that of the extruded aluminum bars on which the dice are formed.
【０００４】そればかりか、上記従来の製造法は、ベア
リング面が粗面になっていたので、ベアリング面とアル
ミ形材との間の摩擦が大きくなり、そのためベアリング
面が劣化するため、ある程度押し出すと金型の手直しが
必要になることから、大ロットの押し出しができない問
題があった。そのため、コスト高になる問題があった。In addition, in the above-mentioned conventional manufacturing method, since the bearing surface is rough, friction between the bearing surface and the aluminum material is increased, and the bearing surface is deteriorated. However, there was a problem that large lots could not be extruded because the mold had to be reworked. Therefore, there has been a problem that the cost increases.
【０００５】このような欠点を解消するため、本出願人
は、前記アルミ押出金型のベアリング面を研磨して鏡面
仕上げした後、該ベアリング面に耐摩耗性皮膜を形成す
る方法を開発し、先に特許出願した。In order to solve such disadvantages, the present applicant has developed a method of forming a wear-resistant film on the bearing surface of the aluminum extrusion die after polishing and mirror-finishing the bearing surface. I applied for a patent earlier.
【０００６】[0006]
【発明が解決しようとする課題】上記方法は、画期的な
方法ではあったが、ダイス目の形成を低減し鏡面に近い
外観とする効果を十分発揮させるには、更に耐摩耗性皮
膜を研磨して、鏡面仕上げする必要があった。そればか
りか、耐摩耗性皮膜を研磨しても、或る程度使用してい
ると、ベアリング面が劣化するため、効果が減少する欠
点があった。Although the above method is an epoch-making method, in order to reduce the formation of dice and sufficiently exhibit an effect close to a mirror surface, an abrasion-resistant film is further required. It had to be polished and mirror-finished. In addition, even if the abrasion-resistant film is polished, the bearing surface is deteriorated when used to a certain extent, so that the effect is reduced.
【０００７】この発明は、耐摩耗性皮膜を研磨しなくと
も、ダイス目の形成を低減し、鏡面に近い外観が得られ
ると共に金型を手直ししなくともこのような効果が長期
間持続するアルミ押出形材の製造法を提供することを目
的とする。[0007] The present invention is an aluminum alloy which reduces the formation of dice without polishing the abrasion-resistant film, provides an appearance close to a mirror surface, and maintains such effects for a long time without reworking the mold. An object of the present invention is to provide a method for producing an extruded profile.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、本発明者等は鋭意研究の結果、ベアリング面にＤＬ
Ｃ膜を形成した押出金型を使用することによって、ダイ
ス目の形成の低減と外観に卓越したアルミ押出形材が得
られることを見いだし、本発明に到達した。Means for Solving the Problems In order to achieve the above object, the present inventors have conducted intensive studies and as a result, have found that a bearing surface has a DL.
The present inventors have found that by using an extrusion die having a C film formed thereon, it is possible to reduce the formation of dice and obtain an extruded aluminum material excellent in appearance, and have reached the present invention.
【０００９】即ち本発明は、アルミ押出金型を使用し
て、押出成形によりアルミ押出形材を製造する方法に於
いて、前記アルミ押出金型のベアリング面を、切削加
工、放電加工等により形成し、研磨して鏡面仕上げした
後、該ベアリング面にＤＬＣ膜の耐摩耗性皮膜を形成し
たことを特徴とする。That is, the present invention relates to a method for producing an extruded aluminum material by extrusion using an aluminum extrusion die, wherein the bearing surface of the aluminum extrusion die is formed by cutting, electric discharge machining or the like. Then, after polishing and mirror finishing, a wear-resistant film of a DLC film is formed on the bearing surface.
【００１０】[0010]
【発明の実施の形態】次に、本発明の実施の形態を説明
する。本発明のアルミ押出金型は、切削加工、放電加工
等による常法によってベアリング面を形成した後、ベア
リング面を鏡面仕上げする。Next, an embodiment of the present invention will be described. In the aluminum extrusion die of the present invention, after the bearing surface is formed by an ordinary method such as cutting, electric discharge machining, or the like, the bearing surface is mirror-finished.
【００１１】ベアリング面の鏡面仕上げは、平滑度０．
３μｍ以下となるようにするのが良く、平滑度を上げる
と、ダイス目の形成が低減したアルミ押出形材が得られ
る。The mirror finish of the bearing surface has a smoothness of 0.1.
The thickness is preferably set to 3 μm or less, and when the smoothness is increased, an extruded aluminum material with reduced formation of dice is obtained.
【００１２】ベアリング面を鏡面仕上げする方法は、上
記平滑度が得られるなら、特に限定されない。例えば、
ホ−ニング、超仕上げ、研磨布加工、ラッピング、ポリ
シング、バレル加工、超音波加工、ＥＥＭ（エラステイ
ックエミッションマシニング）、メカノケミカルポリシ
ング、クロ−トポリシング等を適用することができる。The method for mirror-finishing the bearing surface is not particularly limited as long as the above-mentioned smoothness can be obtained. For example,
Honing, superfinishing, polishing cloth processing, lapping, polishing, barrel processing, ultrasonic processing, EEM (elastic emission machining), mechanochemical polishing, close polishing and the like can be applied.
【００１３】上記のようにして鏡面仕上げした後、ベア
リング面に耐摩耗性皮膜としてＤＬＣ膜を被覆する。After the mirror finish as described above, the bearing surface is coated with a DLC film as a wear-resistant film.
【００１４】ＤＬＣとは、Ｄｉａｍｏｎｄ Ｌｉｋｅ
Ｃａｒｂｏｎ（ダイヤモンド状カーボン）の略で、ダイ
ヤモンドに類似した特性を有する炭素膜であり、それ自
体は公知である。[0014] The DLC, D iamond L ike
It stands for C Arbon (diamond-like carbon), a carbon film having characteristics similar to diamond, are known per se.
【００１５】ＤＬＣ膜を形成するには、それ自体公知の
ＰＶＤ法（物理的蒸着法）によって行う。ＰＶＤ法は、
炭素の供給源によって大別され、黒鉛を用いる方法と炭
化水素系ガスを用いる方法とがあるが、本発明にはいず
れの方法も適用することができる。The DLC film is formed by a known PVD method (physical vapor deposition method). PVD method is
There are a method using graphite and a method using a hydrocarbon-based gas, which are roughly classified according to the source of carbon. Either method can be applied to the present invention.
【００１６】黒鉛を用いる方法には、マグネトロンスパ
ッタリング法と電子ビームによって蒸発させるイオンプ
レーテイング法とがある。As a method using graphite, there are a magnetron sputtering method and an ion plating method of evaporating by an electron beam.
【００１７】炭化水素系ガスを用いる方法は、減圧した
真空槽内にメタン、アセチレン、ベンゼンなどを導入
し、熱電子や高周波によってイオン化して基板に叩きつ
け、皮膜を堆積させる方法である。A method using a hydrocarbon-based gas is a method in which methane, acetylene, benzene, or the like is introduced into a reduced-pressure vacuum chamber, ionized by thermoelectrons or high-frequency waves and struck against a substrate to deposit a film.
【００１８】上記ＰＶＤ法によって、ＤＬＣ膜を形成す
るが、ベアリング面のような狭い隙間には、ＤＬＣ膜は
均一に形成しにくいので、ＤＬＣ膜がベアリング面にコ
ーテイングし易いように、アルミ押出金型を分割するの
が良い。Although the DLC film is formed by the PVD method, it is difficult to uniformly form the DLC film in a narrow gap such as a bearing surface. Therefore, an aluminum extrusion metal is used so that the DLC film is easily coated on the bearing surface. It is better to split the mold.
【００１９】例えば、ベアリング面を含む部分だけを分
割型とし、これを嵌め込んでアルミ押出金型とすれば良
い。For example, only the portion including the bearing surface may be a split mold, which may be fitted to form an aluminum extrusion die.
【００２０】上記のようにしてベアリング面にＤＬＣ膜
を形成したアルミ押出金型を使用し、これを押出加工装
置に装着して、常法によりアルミ押出形材を製造する。An aluminum extrusion die having a DLC film formed on the bearing surface as described above is used, and is mounted on an extrusion processing apparatus to produce an aluminum extrusion profile by a conventional method.
【００２１】上記のようにして形成されたＤＬＣ膜は、
極めて平滑であるので、更に、研磨して鏡面仕上げする
必要はないが、研磨しても差し支えない。また、ＤＬＣ
膜の形成条件によって、平滑さ（表面粗さ）が不十分で
ある場合は、研磨するのが良い。The DLC film formed as described above is
Since it is extremely smooth, there is no need to further polish it to a mirror finish, but it is possible to do so. Also, DLC
If the smoothness (surface roughness) is insufficient depending on the film formation conditions, it is preferable to polish the film.
【００２２】次に、実施例を挙げて、本発明を更に説明
するが、本発明はこの実施例に限定されない。Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.
【００２３】実施例 ベアリング面を含む部分だけを分割型とし、このベアリ
ング面に、炭化水素系ガスを用いる方法によって、ＤＬ
Ｃ膜を形成した。EXAMPLE Only a part including a bearing surface is divided into two parts, and the bearing surface is formed by a method using a hydrocarbon gas.
A C film was formed.
【００２４】ＤＬＣ膜の形成は、減圧にした真空槽内の
基板ホルダーに上記分割型（基板）を装着し、同真空槽
内にメタン、アセチレン、ベンゼンガスを導入すること
により行った。The formation of the DLC film was carried out by mounting the above-mentioned split mold (substrate) on a substrate holder in a vacuum chamber under reduced pressure, and introducing methane, acetylene and benzene gas into the vacuum chamber.
【００２５】ベアリング面にＤＬＣ膜を形成する条件
は、アノード電圧１００〜２００Ｖ、カソード電圧２０
〜３０ｍＡ、基板温度６００Ｋで行った。このようにし
て形成されたベアリング面は、非常に平滑なガラス状で
あった。The conditions for forming the DLC film on the bearing surface are as follows: anode voltage 100 to 200 V, cathode voltage 20
-30 mA and a substrate temperature of 600K. The bearing surface thus formed was very smooth and glassy.
【００２６】この金型を使用して製造したアルミ押出形
材は、ダイス目の形成が著しく低減し、鏡面状態の外観
を呈していた。また、押し出し速度も向上させることが
できた。更に、長時間同じ金型を使用しても、本発明の
効果は殆ど減じられなかった。The extruded aluminum material manufactured using this mold had a remarkably reduced number of dies and a mirror-like appearance. Also, the extrusion speed could be improved. Further, even if the same mold was used for a long time, the effect of the present invention was hardly reduced.
【００２７】次に、このようにして形成したＤＬＣ膜の
アルミニウムに対する摩擦抵抗を測定した結果を示す。
試験は、アルミニウム製のボールを、ベアリング面のＤ
ＬＣ膜に一定の荷重で押しつけ、一定の摩擦速度で円を
描くように走査し、ボールとＤＬＣ膜に生じる摩擦抵抗
をセンサで感知して、摩擦係数の変化を測定することに
より行った。Next, the results of measuring the frictional resistance of the DLC film thus formed to aluminum are shown.
In the test, an aluminum ball was placed on the bearing surface
The test was performed by pressing the LC film with a constant load, scanning in a circular manner at a constant friction speed, sensing the frictional resistance generated between the ball and the DLC film with a sensor, and measuring the change in the coefficient of friction.
【００２８】結果は、走査距離０〜５０００ｍｍで、摩
擦係数は０．２５〜０．３０の間であった。As a result, the scanning distance was 0 to 5000 mm and the coefficient of friction was between 0.25 and 0.30.
【００２９】比較のため、ＴｉＮ膜を同様にしてベアリ
ング面に形成し．同様に試験したところ、走査距離０で
は摩擦係数０．３であったが、走査距離が僅か５００ｍ
ｍで摩擦係数は０．７５に上昇した。For comparison, a TiN film was similarly formed on the bearing surface. When the same test was performed, the coefficient of friction was 0.3 at a scanning distance of 0, but the scanning distance was only 500 m.
At m, the coefficient of friction increased to 0.75.
【００３０】上記結果から明らかなように、ＴｉＮ膜を
形成した場合は、非常に短い走査距離で摩擦係数が上昇
するが、ＤＬＣ膜を形成すると、長く走査しても摩擦係
数の上昇は見られず、ＴｉＮ膜の１／３程度の低い状態
を維持している。As is clear from the above results, when the TiN film is formed, the friction coefficient increases with a very short scanning distance, but when the DLC film is formed, the friction coefficient increases even when scanning is performed for a long time. However, the low state of about 1/3 of the TiN film is maintained.
【００３１】本発明によれば、ベアリング面のアルミニ
ウムに対する摩擦抵抗を著しく小さくすることができる
ので、アルミニウム形材の押し出し速度を早めることが
できる。According to the present invention, since the frictional resistance of the bearing surface to aluminum can be significantly reduced, the extrusion speed of the aluminum section can be increased.
【００３２】また、ＤＬＣ膜によって鏡面のように形成
することができるので、ベアリング面のＤＬＣ膜を更に
研磨しないで使用することもできるから、本発明に使用
する金型を容易に製造することができる。Also, since the DLC film can be formed like a mirror surface, the DLC film on the bearing surface can be used without further polishing, so that the mold used in the present invention can be easily manufactured. it can.
【００３３】更に、長時間使用しても、ＤＬＣ膜の摩擦
抵抗は上昇しないから、金型を手直しせず、長時間使用
することができる。Further, even if the mold is used for a long time, the frictional resistance of the DLC film does not increase, so that the mold can be used for a long time without reworking.
【００３４】[0034]
【発明の効果】本発明によれば、ダイス目の形成が低減
し高品質な表面性状のアルミ形材が得られるだけでな
く、押し出し速度を早めることができるほか、ＤＬＣ膜
を研磨しなくとも使用することができると共に金型を手
直しせずに長時間使用することができるという従来の方
法には全く見られない多くの利点を併有する。According to the present invention, not only the formation of dice is reduced to obtain a high-quality aluminum profile having a surface texture, but also the extrusion speed can be increased, and the DLC film can be polished without polishing. It has many advantages not found in the conventional method that can be used and can be used for a long time without reworking the mold.
【００３５】その結果、本発明方法を適用することによ
って、生産性が著しく向上するから、アルミ押出形材を
工業的に安価に供することができる。As a result, by applying the method of the present invention, productivity is remarkably improved, so that an extruded aluminum material can be industrially provided at low cost.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 五十嵐 貴教 東京都千代田区四番町五番地九 トピー工 業株式会社内 Ｆターム(参考） 4E029 AA06 4E050 JA01 JA03 JB01 JB03 JB06 JB09 JB10 JC02 JD03 JD05 4K029 AA02 AA21 BA34 BC02 BD05 CA00 CA04 CA06 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takanori Igarashi F-term (reference) 4E029 AA06 4E050 JA01 JA03 JB01 JB03 JB06 JB09 JB10 JC02 JD03 JD05 4K029 AA02 AA21 BA34 BC02 BD05 CA00 CA04 CA06
Claims (3)
りアルミ押出形材を製造する方法に於いて、前記アルミ
押出金型のベアリング面を、切削加工、放電加工等によ
り形成し、研磨して鏡面仕上げした後、該ベアリング面
にＤＬＣ膜の耐摩耗性皮膜を形成したことを特徴とする
アルミ押出形材の製造法。1. A method for producing an extruded aluminum material by extrusion using an aluminum extrusion die, wherein the bearing surface of the aluminum extrusion die is formed by cutting, electric discharge machining, etc., and is polished. A method for producing an extruded aluminum material, comprising forming a wear-resistant film of a DLC film on the bearing surface after mirror finishing.
理によって形成してなる請求項１に記載の製造法。2. The method according to claim 1, wherein the wear-resistant coating is formed by surface treatment using PVD.
ーテイングし易いように分割し、該分割したベアリング
面に前記ＤＬＣ膜を形成してなる請求項１又は２に記載
の製造法。3. The method according to claim 1, wherein the aluminum extrusion die is divided so as to be easily coated on a bearing surface, and the DLC film is formed on the divided bearing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10177091A JP2000005811A (en) | 1998-06-24 | 1998-06-24 | Manufacture of aluminum extrusion member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10177091A JP2000005811A (en) | 1998-06-24 | 1998-06-24 | Manufacture of aluminum extrusion member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000005811A true JP2000005811A (en) | 2000-01-11 |
Family
ID=16024983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10177091A Pending JP2000005811A (en) | 1998-06-24 | 1998-06-24 | Manufacture of aluminum extrusion member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000005811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1649994A2 (en) | 2004-10-21 | 2006-04-26 | Ngk Insulators, Ltd. | Die for extrusion forming of ceramics |
| CN1302868C (en) * | 2005-04-15 | 2007-03-07 | 秦强 | Mirror processing method for working surface of mechanical part |
-
1998
- 1998-06-24 JP JP10177091A patent/JP2000005811A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1649994A2 (en) | 2004-10-21 | 2006-04-26 | Ngk Insulators, Ltd. | Die for extrusion forming of ceramics |
| CN1302868C (en) * | 2005-04-15 | 2007-03-07 | 秦强 | Mirror processing method for working surface of mechanical part |
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