JP6654971B2 - 樹脂成形部材の成形方法及び成形システム - Google Patents
樹脂成形部材の成形方法及び成形システム Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C33/00—Moulds or cores; Details thereof or accessories therefor
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C43/32—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
金型装置を高速で型締めすると金型のキャビティ内のエアが抜け切らず、結果として成形品の内部に大量のボイド(void)が残存して物性不良となる問題点がある。この問題を解決するために、例えば、横パーティングラインを有する金型構造を用いることで、エア抜けを改善することが可能である。しかしながら、横パーティングラインを有する金型構造は、キャビティの外部へ樹脂材料が流出するため、樹脂成形品の外周部にバリが発生すると共に、このバリを除去するためにトリム後工程が必要となって生産性が低下するおそれがある。
図2中において、横軸は、時間(sec)を、縦軸は、温度(℃)をそれぞれ示している。
なお、横軸の各時刻T0〜T4は、以下の通りである。
T0:樹脂材料(基材)が下型12bに投入された段階の時刻を示している。
T1:下型12bに装着されたシール部材28が上型12aに嵌合し、キャビティが密封空間となった段階の時刻を示している。これ以後において、真空脱気が可能となる。
T2:上型12aが基材に接触した段階の時刻を示している。これ以後において、樹脂材料の温度が急速に冷却される。
T3:プレス装置14の型締めが完了(プレス下死点まで上型12aが下降)した段階の時刻を示している。この段階における樹脂材料の温度は、流動停止温度以上でなければならない。すなわち、T3は、樹脂材料の流動が停止する時刻T4よりも早くなければ、所望の成形部材を得ることができないからである。
T4:樹脂材料の流動が停止した段階の時刻を示している。
また、図2中における「温度」には、時刻T0の金型への投入後の材料表面温度、時刻T4における流動停止温度等が含まれる。
成形条件としては、プレス速度(プレス成形速度)(mm/sec)、減圧条件(第1減圧回路及び第2減圧回路の使用の有無)、成形圧力(MPa)、金型平行制御の有無をその比較対象としている。また、結果としては、成形品におけるボイドの有無、平均板厚(mm)をその比較対象としている。
12a 上型(金型)
12b 下型(金型)
14 プレス装置
20a 第1減圧回路(減圧回路)
20b 第2減圧回路(減圧回路)
28 シール部材
34 切換弁
Claims (4)
- 補強繊維を熱可塑性樹脂組成物に分散した熱可塑性樹脂複合素材を上型及び下型を有する金型内で減圧しながらプレス成形する樹脂成形部材の成形方法であって、
前記金型内の下型上に前記熱可塑性樹脂複合素材を装填した後、型締めを開始する工程と、
前記型締めの進行により、前記金型の上型と下型の嵌合面に設けられたシール部材によってキャビティが閉塞された状態にあると共に、前記金型内の下型上に装填された前記熱可塑性樹脂複合素材が前記金型の上型と接触する前に、第1減圧回路によって前記キャビティ内の減圧が開始される工程と、
さらに前記型締めが進行し、前記金型内に装填された前記熱可塑性樹脂複合素材が前記金型の上型に接触した後、第2減圧回路によって前記キャビティ内の減圧を開始して前記型締めを完了させる工程と、
を有することを特徴とする樹脂成形部材の成形方法。 - 請求項1記載の樹脂成形部材の成形方法において、
前記補強繊維は、ランダムに配向されていることを特徴とする樹脂成形部材の成形方法。 - 請求項1又は請求項2記載の樹脂成形部材の成形方法において、
前記補強繊維は、繊維長が5mm以上、50mm以下の炭素繊維を含むことを特徴とする樹脂成形部材の成形方法。 - 相対的に接近及び離間可能に配置され、少なくとも、縦パーティングライン構造からなる上型及び下型を有する金型と、
前記金型のキャビティに接続される少なくとも2系統以上の通路を有する減圧回路と、
前記減圧回路の通路を切り換える切換弁と、
前記金型のキャビティ内の気密性を保持するシール部材と、
を備え、
前記上型と前記下型との間で前記シール部材が嵌合した後、速度制御による型締めと、その後の圧力制御による型締めとがそれぞれ遂行され、
速度制御による型締め速度は、圧力制御による型締め速度よりも高速であることを特徴とする樹脂成形部材の成形システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016120485A JP6654971B2 (ja) | 2016-06-17 | 2016-06-17 | 樹脂成形部材の成形方法及び成形システム |
CN201780037757.XA CN109843536B (zh) | 2016-06-17 | 2017-05-11 | 树脂成形部件的成形方法及成形*** |
US16/310,008 US11052581B2 (en) | 2016-06-17 | 2017-05-11 | Molding method and molding system for resin molded member |
PCT/JP2017/017893 WO2017217151A1 (ja) | 2016-06-17 | 2017-05-11 | 樹脂成形部材の成形方法及び成形システム |
EP17813056.3A EP3473400B1 (en) | 2016-06-17 | 2017-05-11 | Molding method and molding system for resin molded member |
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Application Number | Priority Date | Filing Date | Title |
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JP2016120485A JP6654971B2 (ja) | 2016-06-17 | 2016-06-17 | 樹脂成形部材の成形方法及び成形システム |
Publications (2)
Publication Number | Publication Date |
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JP2017222122A JP2017222122A (ja) | 2017-12-21 |
JP6654971B2 true JP6654971B2 (ja) | 2020-02-26 |
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US3504070A (en) * | 1968-02-19 | 1970-03-31 | Comet Ind | Vacuum forming method and apparatus |
US4551085A (en) * | 1983-04-25 | 1985-11-05 | The Budd Company | Compression molding apparatus having vacuum chamber |
JPS62193814A (ja) * | 1986-02-19 | 1987-08-26 | Kurata Kinzoku Kogyo Kk | 樹脂材料の圧縮成形方法 |
JPH0729230B2 (ja) * | 1988-04-07 | 1995-04-05 | 株式会社神戸製鋼所 | 圧縮成形機の制御方法 |
US5071603A (en) | 1987-12-14 | 1991-12-10 | Kabushiki Kaisha Kobe Seiko Sho | Method of controlling hydraulic press |
JPH01266996A (ja) * | 1988-04-19 | 1989-10-24 | Kobe Steel Ltd | 油圧プレスの制御方法 |
JPH0520498Y2 (ja) * | 1988-10-29 | 1993-05-27 | ||
JP2520624Y2 (ja) | 1990-11-22 | 1996-12-18 | 川崎油工株式会社 | Smc等の真空プレス成形装置 |
JPH0756171Y2 (ja) * | 1992-01-30 | 1995-12-25 | 株式会社名機製作所 | 真空成形プレス装置 |
JPH0631755A (ja) * | 1992-07-14 | 1994-02-08 | Nippo Sangyo Kk | 反応硬化性合成樹脂用の鋳込成形装置 |
JP2859108B2 (ja) * | 1993-09-28 | 1999-02-17 | 積水化学工業株式会社 | 熱硬化性樹脂成形品の製造方法 |
JPH07256673A (ja) * | 1994-03-23 | 1995-10-09 | Sekisui Chem Co Ltd | 繊維強化樹脂成形体のプレス成形方法及び成形型 |
JP2000094483A (ja) * | 1998-09-22 | 2000-04-04 | Beishin Kogyo Kk | 合成樹脂成形品の減圧併用成形方法 |
JP3086213B2 (ja) * | 1998-10-21 | 2000-09-11 | 本田技研工業株式会社 | 多層発泡成形品の製造方法 |
AU2003211566A1 (en) * | 2002-02-28 | 2003-09-09 | Ube Machinery Corporation, Ltd. | Method for expansion injection molding |
JP4519398B2 (ja) * | 2002-11-26 | 2010-08-04 | Towa株式会社 | 樹脂封止方法及び半導体装置の製造方法 |
JP4569417B2 (ja) * | 2005-08-23 | 2010-10-27 | 宇部興産機械株式会社 | 熱可塑性樹脂の射出発泡成形方法 |
US7759267B2 (en) | 2006-04-05 | 2010-07-20 | Azdel, Inc. | Lightweight composite thermoplastic sheets including reinforcing skins |
JP5148175B2 (ja) * | 2007-06-06 | 2013-02-20 | 住友重機械工業株式会社 | 樹脂封止装置および樹脂封止方法 |
JP2009029066A (ja) | 2007-07-30 | 2009-02-12 | Almighty:Kk | 可燃性繊維強化樹脂成形品の製造方法 |
JP5517423B2 (ja) | 2008-08-26 | 2014-06-11 | キヤノン株式会社 | インプリント装置及びインプリント方法 |
JP5876791B2 (ja) * | 2012-08-28 | 2016-03-02 | 本田技研工業株式会社 | 繊維強化樹脂成形品の成形方法及びその装置 |
CN103963318B (zh) * | 2013-01-29 | 2019-08-09 | 康廷南拓结构塑料有限公司 | 热固性片状制品的真空成形方法 |
JP6320172B2 (ja) * | 2014-05-29 | 2018-05-09 | Towa株式会社 | 電子部品の樹脂封止方法及び樹脂封止装置 |
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EP3473400A4 (en) | 2020-01-22 |
EP3473400A1 (en) | 2019-04-24 |
US11052581B2 (en) | 2021-07-06 |
JP2017222122A (ja) | 2017-12-21 |
CN109843536A (zh) | 2019-06-04 |
US20190168425A1 (en) | 2019-06-06 |
CN109843536B (zh) | 2021-10-22 |
EP3473400B1 (en) | 2021-06-30 |
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