JPS63260419A - Film width control device - Google Patents

Film width control device

Info

Publication number
JPS63260419A
JPS63260419A JP62094315A JP9431587A JPS63260419A JP S63260419 A JPS63260419 A JP S63260419A JP 62094315 A JP62094315 A JP 62094315A JP 9431587 A JP9431587 A JP 9431587A JP S63260419 A JPS63260419 A JP S63260419A
Authority
JP
Japan
Prior art keywords
film width
neck
width
film
control 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.)
Granted
Application number
JP62094315A
Other languages
Japanese (ja)
Other versions
JPH0815753B2 (en
Inventor
Yoshimasa Ban
伴 欣征
Tadashi Kurayama
倉山 忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP62094315A priority Critical patent/JPH0815753B2/en
Publication of JPS63260419A publication Critical patent/JPS63260419A/en
Publication of JPH0815753B2 publication Critical patent/JPH0815753B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/305Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/31Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92571Position, e.g. linear or angular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92609Dimensions
    • B29C2948/92628Width or height
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92923Calibration, after-treatment or cooling zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a desired film width easily, by a method wherein a neck-in quantity corresponding to a film width is calculated by setting up the film width beforehand, a positioning quantity of a deckle is calculated through the film width and neck-in quantity and the deckle is controlled automatically. CONSTITUTION:A product width L is set up to a setting part 25a of a microcomputor 25 through a key board 27. Then a detected value from a sensor part 22 is given to a neck-in quantity calculating part 25b and neck-in quantities (a), (b) are calculated. Then a positioning quantity calculating part 25c calculates lip opening lengths A, B as the positioning quantities through the neck-in quantities (a), (b) and the product width L, and the positioning quantities are applied to a position control controller in the microcomputor 25. The lip opening lenths A, B are given to a sequencer 19, and the sequencer 19 moves a deckle 11 automatically by quantities equivalent to the lip opening lengths A, B.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はフィルム加工機に使用されるフィルム幅制御装
置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film width control device used in a film processing machine.

以下余日 [従来の技術] 従来、この種のフィルム加工機はTダイと呼ばれるフィ
ルム加工部を備え、このTダイに、押し出されてきた樹
脂を与えることにより、樹脂を所定の厚さ及び幅のフィ
ルムに加工している。具体的に言えば、フィルム加工部
では、樹脂の押し出し方向を横切るように、Tダイに挿
入されるディケルの位置を制御することにより、フィル
ム幅を定めることができる。
[Prior art] Conventionally, this type of film processing machine is equipped with a film processing section called a T-die, and by feeding the extruded resin to this T-die, the resin is processed to a predetermined thickness and width. It is processed into film. Specifically, in the film processing section, the film width can be determined by controlling the position of the deckle inserted into the T-die so as to cross the extrusion direction of the resin.

このディケルの位置制御を行うフィルム幅制御装置はデ
ィケルに取り付けられたモータを制御することによって
、ディケルを移動させるのに用いられる。
A film width control device that controls the position of the dekel is used to move the dekel by controlling a motor attached to the dekel.

[発明の解決しようとする問題点] 従来のフィルム幅制御装置はグリセットカウンター又は
エンコーダを有し、これらのカウンター等を経験的に定
められた値にセットすることによって、フィルム幅を決
めている。
[Problems to be Solved by the Invention] Conventional film width control devices have grisset counters or encoders, and the film width is determined by setting these counters to empirically determined values. .

しかしながら、Tダイから出てくるフィルムの幅はディ
ケルによって決まる幅より狭くなり、言わゆるネックイ
ンが発生する。このネックインの量は種々の要因によっ
て変化するため、所望のフィルム幅を得ることは非常に
困難である。また。
However, the width of the film coming out of the T-die is narrower than the width determined by the dekel, and so-called neck-in occurs. Since the amount of neck-in varies depending on various factors, it is very difficult to obtain a desired film width. Also.

このことは熟練者でなければ所望の製品幅を得るのが難
しいことを意味している。
This means that it is difficult to obtain the desired product width unless you are an expert.

本発明の目的は熟練者でなくても容易に所望のフィルム
幅を得ることができるフィルム幅制御装置を提供するこ
とである。
An object of the present invention is to provide a film width control device that allows even non-experts to easily obtain a desired film width.

本発明の他の目的はディケルを最適な幅に自動的に調節
出来るフィルム幅制御装置を提供することである。
Another object of the present invention is to provide a film width control device that can automatically adjust the dekel to an optimum width.

[問題点を解決するための手段] 本発明によれば、ディケルによって制御されるTグイを
用いたフィルム加工機のフィルム幅制御装置において、
予め定められたフィルム幅を設定するだめの手段と、フ
ィルム幅に応じたネックイン量を得るための手段と、フ
ィルム幅とネックイン量とからディケルの位置ぎめ量を
算出し、ディケルを自動的に制御するための手段とを有
するフィルム幅制御装置が得られる。
[Means for Solving the Problems] According to the present invention, in a film width control device for a film processing machine using a T guide controlled by a dekel,
A means for setting a predetermined film width, a means for obtaining a neck-in amount according to the film width, and a means for calculating the positioning amount of the dekel from the film width and the neck-in amount, and automatically adjusting the dekel. A film width control device having means for controlling the width of the film is obtained.

[実施例] 第1図を参照すると1本発明の一実施例に係るフィルム
幅制御装置はTダイ10に挿入されたディケル11と連
結されて使用される。ディケル11はディケルロッZt
a、このディケルロットIlaを支持する支持軸、及び
インナーディケルllbを有している。図示されたフィ
ルム幅制御装置はディケルロット11a、及びインナー
ディケルllbを図の左右方向へ移動させ、Tダイ10
から図の前後方向に押し出される樹脂の幅を制御する。
[Embodiment] Referring to FIG. 1, a film width control device according to an embodiment of the present invention is used in conjunction with a die 11 inserted into a T-die 10. Decel 11 is Decelroc Zt
a, a support shaft that supports this deckle rod Ila, and an inner deckle Ilb. The illustrated film width control device moves the dekel rod 11a and the inner dekel llb in the left-right direction in the figure, and moves the T-die 10
Controls the width of the resin extruded in the front-back direction in the figure.

このため、ディケル11にはモータ12が取り付けられ
ている。
For this reason, a motor 12 is attached to the deckle 11.

第2図をも参照すると、Tダイ10中で、ディケル11
によってTダイ10の開口長りが定まる。
Referring also to FIG. 2, in the T-die 10, the diekel 11
The opening length of the T-die 10 is determined by .

このとき、押し出されるフィルム13の幅りは開口長り
に比較して狭くなっている。開口長りとフィルムの幅り
との差はネックイン量と呼ばれ2図では、左右両側にa
及びbとで示されている。
At this time, the width of the extruded film 13 is narrower than the opening length. The difference between the opening length and the film width is called the neck-in amount.
and b.

このネックイン量は樹脂の粘度特性、温度、エアーギヤ
ラグ、引っ張り速度、吐出圧力等により変化する。この
ため、所望の製品幅を有するフィルムを得ることは熟練
者でなければ非常に難しい。
This amount of neck-in changes depending on the viscosity characteristics of the resin, temperature, air gear lag, pulling speed, discharge pressure, etc. For this reason, it is extremely difficult to obtain a film having a desired product width unless one is an expert.

本発明では、まず、フィルム幅りを最終の製品幅として
、マイクロコンピュータに設定しておくと共に、ネック
イン量を定めるファクターを入力して、ネックイン量a
及びbを算出する。算出されたネックイン量a及びbと
フィルム幅りとから。
In the present invention, first, the film width is set in the microcomputer as the final product width, and a factor that determines the neck-in amount is input, and the neck-in amount a
and b are calculated. From the calculated neck-in amounts a and b and the film width.

マイクロコンピュータにより、開口長りの半分に等しい
長さ[リップ開口長コA及びBを以下の式を用いて計算
する。
A microcomputer calculates a length equal to half the opening length [lip opening lengths A and B] using the following formula.

A=[: L/2 )+a 、 B=(L/2 )+b
第1図に戻ると1図示されたフィルム幅制御装置は従来
の場合と同様に、エンコーダ16.近接スイッチ17.
及び操作釦ボックス18とが設けられており、これら工
/コーダ16.近接スイッチ17.及び操作釦ボックス
18はシーケンサ19に接続されている。一方、ディケ
ル11を駆動するモータ12は電磁開閉器21を介して
シーケンサ19に結合されている。
A=[: L/2)+a, B=(L/2)+b
Returning to FIG. 1, the film width control device shown in FIG. 1 includes an encoder 16. Proximity switch 17.
and an operation button box 18 are provided, and these machine/coder 16. Proximity switch 17. and the operation button box 18 are connected to a sequencer 19. On the other hand, a motor 12 that drives the deck 11 is coupled to a sequencer 19 via an electromagnetic switch 21.

更に、この例に示された制御装置には、ネックイン量に
影響を及ばずファクターを監視するセンサ一部22が設
けられており、これらセンサ一部22の検出値がマイク
ロコンピュータ25に入力されている。セ/サ一部22
は樹脂の粘度特性。
Furthermore, the control device shown in this example is provided with a sensor section 22 that monitors the factor without affecting the neck-in amount, and the detected values of these sensor sections 22 are input to the microcomputer 25. ing. Se/sa part 22
is the viscosity property of the resin.

温度、エアーギヤyノ、引っ張り速度、及び吐出圧力を
検出するセンサー要素だけでなく、ディケル11の位置
を検出する位置センサーをも含んでいる。
It includes a position sensor that detects the position of the deckle 11 as well as sensor elements that detect temperature, air gear, pulling speed, and discharge pressure.

マイクロコンビエータ25はシーケンサ19に接続され
る一方、 CRT等のディスプレイ装置26゜キーデー
ト27.及び記憶装置28とも接続されている。このシ
ーケンサ19はマイクロコンピュータ25からの設定信
号を受け、ディケル11を指定された位置に移動させる
機能を有している。
The micro combinator 25 is connected to the sequencer 19, while displaying a display device 26, such as a CRT, and a key date 27. and a storage device 28. This sequencer 19 has a function of receiving a setting signal from the microcomputer 25 and moving the deckle 11 to a specified position.

第3図をも併せ参照して、第1図のフィルム幅制御装置
の動作を説明する。動作が開始すると。
The operation of the film width control device shown in FIG. 1 will be explained with reference to FIG. 3 as well. Once it starts working.

第1ステツグS1に移行する。マイクロコンピュータ2
5はフィルム幅設定部25aを備え、この設定部2ja
に、第′1ステノf Slにおいて、製品幅りがキー?
−ド27から設定される。第1ステツプSlでは、セン
サ一部22からの検出値がネックイン量算出部25bに
与えられ、ネックイン量a及びb(第2図)が算出され
る。第2ステツプS2では1位置決め量算出部25cが
上記したネックイン量a及びす、並びに製品幅りとから
ディケル11の開口長り、即ち、リング開口長A及びB
を位置決め量として計算し、この位置決め量がマイクロ
コンピュータ25内の位置制御コントローラに出力され
る。リップ開口長A及びBはシーケンサ19に与えられ
、シーケンサ19はジノ4ステノグS4において、マイ
クロコンピュータ25はジョブ番号を付して、記憶装置
28に格納する。
The process moves to the first step S1. microcomputer 2
5 includes a film width setting section 25a, and this setting section 2ja
In the '1st Steno f Sl, is the product width the key?
- It is set from code 27. In the first step Sl, the detected value from the sensor part 22 is given to the neck-in amount calculating section 25b, and the neck-in amounts a and b (FIG. 2) are calculated. In the second step S2, the 1 positioning amount calculation unit 25c calculates the opening length of the deckle 11 from the neck-in amount a and the product width described above, that is, the ring opening lengths A and B.
is calculated as a positioning amount, and this positioning amount is output to the position controller within the microcomputer 25. The lip opening lengths A and B are given to the sequencer 19, and the sequencer 19 stores them in the storage device 28 while the microcomputer 25 assigns a job number to them.

続いて、第5ステツプS5では、マイクロコンピュータ
25はエンコーダ16からの出力を監視し。
Subsequently, in the fifth step S5, the microcomputer 25 monitors the output from the encoder 16.

モータ12及びディケル11の移動量、即ち2位置デー
タを検出する。具体的に言えば9位置データを変更する
必要があるかどうかを判断し1判断の結果1位置データ
を変更する必要がなければ。
The amount of movement of the motor 12 and the deckle 11, that is, the two-position data is detected. Specifically, 9 determines whether or not the position data needs to be changed, and as a result of the 1 judgment, 1 if the position data does not need to be changed.

処理を終了する。また1位置データの変更が必要であれ
ば、第1ステツプS1に戻る。
Finish the process. If it is necessary to change one position data, the process returns to the first step S1.

上記した実施例では、センサ一部22からの検出値を用
いて、マイクロコンピュータ25内でネックイン量a、
bを自動的に算出する場合について説明したが9本発明
は何等これに限定されることなく、経験に基くネックイ
ン量a、bがキーボード27からマイクロコンビーータ
25に入力されてもよい。
In the embodiment described above, using the detected value from the sensor part 22, the neck-in amount a,
Although the case where b is automatically calculated has been described, the present invention is not limited to this in any way, and the neck-in amounts a and b based on experience may be input to the microconbeater 25 from the keyboard 27.

図示した実施例の場合、ディスプレイ装置26が設けら
れているから、計算値(設定値)及び現在値を表示する
ことができる。この構成は製品幅を変更した時2位置合
せを簡単にできる。
In the illustrated embodiment, a display device 26 is provided so that calculated values (setting values) and current values can be displayed. This configuration allows easy two-position alignment when changing the product width.

[発明の効果] 本発明では、マイクロコンビーータにより製品幅、ネッ
クイン量を設定して、ディケルの位置を所望の製品幅に
なるように調整することができる。
[Effects of the Invention] In the present invention, the product width and neck-in amount can be set using the microconbeater, and the position of the dekel can be adjusted to the desired product width.

更に繰り返し製品を作る場合、記憶装置に記憶されたデ
ータを用いることができるため9個人差による製品幅の
バラツキを防止できる。また、樹脂を常時最適量だけ供
給することができるため、樹脂のロスも少なくなるとい
う利点がある。
Furthermore, when manufacturing products repeatedly, it is possible to use the data stored in the storage device, so it is possible to prevent variations in product width due to individual differences. Furthermore, since the optimum amount of resin can be supplied at all times, there is an advantage that resin loss is reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例に係るフィルム幅制御装置を
Tダイと関連付けて示すブロック図、第2図は本発明を
原理的に説明するだめの図、及び第3図は第1図のフィ
ルム幅制御装置の動作を説明するだめのフローチャート
である。 記号の説明 10:Tダイ、11:デイケル、12:モータ。 13:フィルム、16:エンコーダ、17:近接スイッ
チ、18:操作釦デツクス、19:シーケンサ、22:
セ/サ一部、25:マイクロコンピュータ、26:デイ
スプレイ装置、27:キーボード、28:記憶装置。 第2図
FIG. 1 is a block diagram showing a film width control device according to an embodiment of the present invention in association with a T-die, FIG. 2 is a diagram for explaining the principle of the present invention, and FIG. 3 is a diagram similar to the one shown in FIG. 3 is a flowchart illustrating the operation of the film width control device of FIG. Explanation of symbols 10: T die, 11: Daykel, 12: Motor. 13: Film, 16: Encoder, 17: Proximity switch, 18: Operation button deck, 19: Sequencer, 22:
25: Microcomputer, 26: Display device, 27: Keyboard, 28: Storage device. Figure 2

Claims (1)

【特許請求の範囲】[Claims] 1、ディケルによって制御されるTダイを用いたフィル
ム加工機のフィルム幅制御装置において、予め定められ
たフィルム幅を設定するための手段と、前記フィルム幅
に応じたネックイン量を得る手段と、前記フィルム幅と
前記ネックイン量とからディケルの位置ぎめ量を算出し
、前記ディケルを自動的に制御するための手段とを有す
ることを特徴とするフィルム幅制御装置。
1. In a film width control device for a film processing machine using a T-die controlled by a die, means for setting a predetermined film width, and means for obtaining a neck-in amount according to the film width; A film width control device comprising means for calculating a positioning amount of the dekel from the film width and the neck-in amount and automatically controlling the dekel.
JP62094315A 1987-04-18 1987-04-18 Film width control device Expired - Lifetime JPH0815753B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62094315A JPH0815753B2 (en) 1987-04-18 1987-04-18 Film width control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62094315A JPH0815753B2 (en) 1987-04-18 1987-04-18 Film width control device

Publications (2)

Publication Number Publication Date
JPS63260419A true JPS63260419A (en) 1988-10-27
JPH0815753B2 JPH0815753B2 (en) 1996-02-21

Family

ID=14106840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62094315A Expired - Lifetime JPH0815753B2 (en) 1987-04-18 1987-04-18 Film width control device

Country Status (1)

Country Link
JP (1) JPH0815753B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03284923A (en) * 1990-03-30 1991-12-16 Sekisui Chem Co Ltd Method for extruding thermoplastic resin film or sheet with colored zone
FR2695064A1 (en) * 1992-03-11 1994-03-04 Kobe Steel Ltd Method and apparatus for molding a fiber composite material
WO1999061218A1 (en) * 1996-07-17 1999-12-02 E.I. Du Pont De Nemours And Company Adjustable, leak-free sealing device for polymer dies
KR100787661B1 (en) * 2001-07-10 2007-12-21 삼성토탈 주식회사 Plastic High Speed Film Processing Equipment
WO2020149332A1 (en) * 2019-01-16 2020-07-23 日本製鉄株式会社 Method for producing grain-oriented electrical steel sheet
GB2626230A (en) * 2022-11-23 2024-07-17 Smith & Nephew Method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5472267A (en) * 1977-11-21 1979-06-09 Nishitami Kougiyou Kk Method of extruding film
JPS6028572U (en) * 1983-08-03 1985-02-26 株式会社クボタ Power steering mechanism for mobile agricultural machinery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5472267A (en) * 1977-11-21 1979-06-09 Nishitami Kougiyou Kk Method of extruding film
JPS6028572U (en) * 1983-08-03 1985-02-26 株式会社クボタ Power steering mechanism for mobile agricultural machinery

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03284923A (en) * 1990-03-30 1991-12-16 Sekisui Chem Co Ltd Method for extruding thermoplastic resin film or sheet with colored zone
FR2695064A1 (en) * 1992-03-11 1994-03-04 Kobe Steel Ltd Method and apparatus for molding a fiber composite material
WO1999061218A1 (en) * 1996-07-17 1999-12-02 E.I. Du Pont De Nemours And Company Adjustable, leak-free sealing device for polymer dies
KR100787661B1 (en) * 2001-07-10 2007-12-21 삼성토탈 주식회사 Plastic High Speed Film Processing Equipment
WO2020149332A1 (en) * 2019-01-16 2020-07-23 日本製鉄株式会社 Method for producing grain-oriented electrical steel sheet
GB2626230A (en) * 2022-11-23 2024-07-17 Smith & Nephew Method

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