JP5993038B2 - 薄手のフィルムを形成するためのデバイスおよびそうしたデバイスを使用するための方法 - Google Patents
薄手のフィルムを形成するためのデバイスおよびそうしたデバイスを使用するための方法 Download PDFInfo
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Description
− 滑らかなシリンダ表面を有し、その回転軸の周囲で回転するよう動作可能なものであり、かつ、蓄積領域と堆積領域との間において、堆積領域における主平面に平行な少なくとも1つの方向に並進移動可能である、シリンダと、
− スクレーパであって、堆積領域の主平面に直交する方向に動作可能であり、かつ、蓄積領域と堆積領域との間において、シリンダと同じ方向に並進移動可能であり、一方の領域から他方の領域へパウダー材料を移動させるのに適合された、スクレーパと、
を備える。
− シリンダのシリンダ表面は、パウダー材料を形成する最小粒子の粒サイズよりも小さくなるよう適合された外観粗さを有する。
− シリンダのシリンダ表面は、約0.06μmの外観粗さを有する。
− パウダー材料におけるシリンダ表面のスライド摩擦係数は、堆積領域の表面上におけるパウダー材料のスライド摩擦係数より小さくなるよう適合されている。
− パウダー材料におけるシリンダ表面のスライド摩擦係数は、約0.02である。
− スクレーパとシリンダとは、同じ速度で並進移動するよう適合されている。
− スクレーパとシリンダとの移動は同期して実施されるよう適合されており、スクレーパとシリンダとの間の距離は一定に保たれるようになっている。
− スクレーパとシリンダとは、異なる速度で並進移動するよう適合されている。
− スクレーパとシリンダとの移動は同期せずに実施されるよう適合されている。
− レーザーで処理がなされた成形されたパウダー材料からなるフィルムの較正をするために適合された較正ツールが、パウダー材料の押し出し時にスクレーパに先行するように、スクレーパに近接して配置されている。
−a) パウダー材料を蓄積するための領域から上流おいて、少なくとも1つのシリンダを回転させるステップと、
−b) スクレーパを下降させるステップと、
−c) 蓄積領域上においてスクレーパを使用して、所定の量のパウダー材料を抽出するステップと、
−d) スクレーパを使用して、蓄積領域から堆積領域へ、抽出された所定量のパウダー材料を押し出すステップと、
−e) スクレーパを上昇させるステップと、
−f) 堆積領域上のパウダー材料を、シリンダを使用して、拡散させるステップと、
−g) あらかじめ拡散されたパウダー材料を、少なくとも1のシリンダの移行において、シリンダを使用して、成形するステップと、
−h) 所望の数の成形されたフィルムが製造されるまで、ステップa)からステップg)を繰り返すステップと、
を含む。
− パウダー材料の成形に先立ってパウダー材料を所定の厚さのフィルム状に拡散させるために、ステップg)の前に、ステップb)からステップf)までの少なくとも1の繰り返しを含む。
− ステップe)の後にかつステップf)の前に、堆積領域上に堆積された材料フィルムの厚さは、成形された材料からなる最終フィルムの厚さの2倍に少なくとも等しい。
2 シリンダ表面
3 スクレーパ
4 リップ
5 カバー
6 蓄積プレート
7 堆積プレート
8 プランジャ
9 プランジャ
10 プレート6の端部
11 プレート6の端部
12 縁部
13 フィルム
14 パウダー材料
15 堅固な領域15(solid area)
16 プレート7の端部
17 プレート7の端部
31 本体
41 縁部
70 プレート7の上面
13’ フィルム
13” フィルム
130 上面
R2 シリンダ
R3 ツール
Claims (12)
- パウダー材料(14)からなる少なくとも1つの薄手のフィルム(13”)を形成するために適合されたデバイスであって、
前記デバイスは、蓄積領域(6)と、堆積領域(7)と、スクレーパ(3)と、シリンダ(1)と、を具備しており、
前記デバイスは、:
− 前記スクレーパ(3)によって前記蓄積領域(6)から前記堆積領域(7)へあらかじめ移動させられた前記パウダー材料(14)を拡散しかつ成形するために、滑らかなシリンダ表面(2)を有するシリンダ(1)であって、前記シリンダ(1)の端面は円形であり、前記シリンダはその回転軸(A)の周囲で回転可能に動作できるものであり、かつ、前記蓄積領域(6)と前記堆積領域(7)との間において、前記堆積領域(7)における主平面(P1)に平行な少なくとも1つの方向(F5,F7)に並進移動可能である、シリンダ(1)と、
− 前記スクレーパ(3)であって、前記スクレーパ(3)が前記蓄積領域(6)上のパウダー材料(14)を所定量だけ抽出する下降ポジションと、前記シリンダ(1)が前記パウダー材料(14)を拡散しかつ成形できるよう適合された上昇ポジションとの間で、前記堆積領域(7)の前記主平面(P1)に直交する方向(F4,F6)に移動可能であり、かつ、前記蓄積領域(6)と前記堆積領域(7)との間において、前記シリンダ(1)と同じ方向(F5,F7)に水平直線方向に並進して移動可能であり、前記スクレーパの移動中に前記蓄積領域(6)から前記堆積領域(7)へ前記パウダー材料(14)を押し出すのに適合された、スクレーパ(3)と、
を具備してなり、
前記シリンダ(1)の前記シリンダ表面(2)は、0.06μmの外観粗さ(Ra)を有することを特徴とするデバイス。 - 前記シリンダ(1)の前記シリンダ表面(2)は、前記パウダー材料(14)を形成する最小粒子の粒サイズよりも小さくなるよう適合された外観粗さ(Ra)を有することを特徴とする請求項1に記載のデバイス。
- 前記パウダー材料(14)上での前記シリンダ表面(2)のスライド時の動摩擦係数(Fg)は、前記堆積領域(7)の表面上における前記パウダー材料(14)のスライド時の動摩擦係数より小さくなるよう適合されたものであることを特徴とする請求項1または請求項2に記載のデバイス。
- 前記パウダー材料(14)上での前記シリンダ表面(2)のスライド時の動摩擦係数(Fg)は、0.02であることを特徴とする請求項3に記載のデバイス。
- 前記スクレーパ(3)と前記シリンダ(1)とは、同じ速度で並進移動するよう適合されていることを特徴とする請求項1ないし請求項4のいずれか一項に記載のデバイス。
- 前記スクレーパ(3)および前記シリンダ(1)の移動は、前記スクレーパ(3)と前記シリンダ(1)との間の距離(E)が一定に保たれるように、同期して実施されるよう適合されていることを特徴とする請求項5に記載のデバイス。
- 前記スクレーパ(3)と前記シリンダ(1)とは、異なる速度で並進移動するよう適合されていることを特徴とする請求項1ないし請求項4のいずれか一項に記載のデバイス。
- 前記スクレーパ(3)および前記シリンダ(1)の移動は、同期せずに実施されるよう適合されていることを特徴とする請求項5または請求項7に記載のデバイス。
- 成形されたパウダー材料(14)からなるフィルム(13”)の較正をするために適合された較正ツール(R3)が、前記パウダー材料(14)がレーザーで処理された後に、パウダー材料(14)の押圧時に前記スクレーパ(3)に先行するように前記スクレーパ(3)に近接して配置されていることを特徴とする請求項1ないし請求項8のいずれか一項に記載のデバイス。
- 請求項1から請求項9のいずれか一項に記載のデバイスを使用してパウダー材料からなる少なくとも1つのフィルムを形成するための方法であって、
−a) 前記パウダー材料(14)を蓄積するための領域(6)から上流おいて、少なくとも1つのシリンダ(1,R2)を回転させるステップ(F1)と、
−b) スクレーパ(3)を下降させるステップと、
−c) 前記蓄積領域(6)上において前記スクレーパ(3)を使用して所定の量のパウダー材料(14)を抽出するステップと、
−d) 前記スクレーパ(3)を使用して、前記蓄積領域(6)から堆積領域(7)へ、前記抽出された所定量のパウダー材料を押し出すステップ(F5)と、
−e) 前記スクレーパ(3)を上昇させるステップ(F6)と、
−f) 前記堆積領域(7)上の前記パウダー材料(14)を、前記シリンダ(1)を使用して拡散させるステップと、
−g) あらかじめ拡散されたパウダー材料(14)を、少なくとも1のシリンダ(1)の移行において、前記シリンダ(1)を使用して、成形するステップと、
−h) 所望の数の成形されたフィルム(13”)が製造されるまで、ステップa)からステップg)を繰り返すステップと、
を含むことを特徴とする方法。 - 前記パウダー材料(14)の成形に先立って前記パウダー材料(14)を所定の厚さのフィルム状に拡散させるために、ステップg)の前に、ステップb)からステップf)までの少なくとも1の繰り返しを含むことを特徴とする請求項10に記載の方法。
- ステップf)の後にかつステップg)の前において、前記堆積領域(7)上に拡散されたパウダー材料(14)の前記フィルム(13’)の厚さは、成形された材料(14)からなる最終フィルム(13”)の厚さの2倍に少なくとも等しいことを特徴とする請求項10に記載の方法。
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