JPH10272634A - Manufacture of resin molded body and curing device - Google Patents
Manufacture of resin molded body and curing deviceInfo
- Publication number
- JPH10272634A JPH10272634A JP9092777A JP9277797A JPH10272634A JP H10272634 A JPH10272634 A JP H10272634A JP 9092777 A JP9092777 A JP 9092777A JP 9277797 A JP9277797 A JP 9277797A JP H10272634 A JPH10272634 A JP H10272634A
- Authority
- JP
- Japan
- Prior art keywords
- material layer
- cured
- metal core
- frp
- resin
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は樹脂成形体の製造
方法並びに硬化装置に係り、特に強度の優れた樹脂成形
体を容易かつ安価に短時間で製造することのできる樹脂
成形体の成製造法並びに硬化装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a resin molded article and a curing apparatus, and more particularly to a method for producing a resin molded article which can easily and inexpensively produce a resin molded article having excellent strength in a short time. And a curing device.
【０００２】[0002]
【従来の技術】例えばＦＲＰ成形体の成形方法は、ガラ
ス繊維を強度向上材として使用し、ハンドレイアップ方
式では、型の上に配置したガラス繊維にローラ等で硬化
剤の入った樹脂材を含浸、脱泡させ、スプレイアップ方
式では、型に樹脂材と硬化剤、ガラス繊維を同時にスプ
レイガンで噴射し、それぞれ成形した状態で自己発熱或
いは外的加熱によって４ないし６時間もかけて硬化させ
て成形している。また外的加熱を利用して成形サイクル
をあげているＳＭＣ成形法等その他の成形方法も設備
費、プレス金型代等高価であるため少量生産には向かな
い。2. Description of the Related Art For example, in a method of forming an FRP molded body, glass fiber is used as a strength improving material. In a hand lay-up method, a resin material containing a hardening agent is added to a glass fiber placed on a mold by a roller or the like. In the spray-up method, the resin material, curing agent and glass fiber are simultaneously sprayed onto the mold with a spray gun, and each molded product is cured for 4 to 6 hours by self-heating or external heating. Molding. In addition, other molding methods such as SMC molding method in which the molding cycle is increased by using external heating are not suitable for small-quantity production because they are expensive, such as equipment cost and press die cost.
【０００３】[0003]
【発明が解決しようとする課題】前記のように、熱硬化
性樹脂を使用する成形体の成形においては、硬化材（触
媒）や熱のコントロールが良品を生むために必要であ
る。現在は熱のコントロールを金型で行うのが主流にな
っているため、どうしても金型代が高くなるし、少ロッ
トではコスト高となり使用することができない。熱をか
ければ硬化スピードをあげることは可能であるが、自己
発熱も起り成形品に歪、膨らみ等支障が発生し、短時間
処理では良品を作ることは非常に難しい。従って一製品
製造サイクルが４時間から６時間もかかり生産性の向上
が困難であった。この発明はそれらの実情に鑑みて、短
時間の硬化処理でも品質に障害の生じない樹脂成形体の
製造方法並びに硬化装置を提供することを目的として開
発されたものである。As described above, in molding a molded article using a thermosetting resin, it is necessary to control the curing material (catalyst) and heat in order to produce good products. At present, it is the mainstream to control heat by using a mold, so the mold cost is inevitably increased, and small lots are expensive and cannot be used. If heat is applied, the curing speed can be increased, but self-heating also occurs, causing distortion and swelling of the molded product, and it is very difficult to produce a good product in a short time. Therefore, it takes 4 to 6 hours to manufacture one product, and it is difficult to improve the productivity. The present invention has been developed in view of these circumstances, with the object of providing a method of manufacturing a resin molded article and a curing apparatus in which quality does not impair even with a short curing treatment.
【０００４】[0004]
【課題を解決するための手段】この発明は前記課題を解
決し、目的を達成するために次のような技術的な手段を
講じた。ここでいう誘導加熱可能な金属芯材とは、電磁
誘導作用により金属のような電気的導体の被熱体に誘導
加熱手段によって誘導電流を発生させ、被熱体自体に生
じる誘導電流と導体の抵抗によって発熱する金属板、金
属棒、金属ネット、網目板（エキスパンデットメタ
ル）、多孔板（パンチングメタル）などをさす。配合樹
脂材とは、外的加熱により硬化が促進される熱硬化性合
成樹脂に、硬化剤と必要に応じて炭酸カルシウム、水酸
化アルミニウム、クレー、タルク、シリカ、ガラス短繊
維、砂、石、ガラス粉、熱可塑性プラスチック、マイク
ロバルーン、木粉、硫酸バリウム、酸化マグネシウム、
鉱物．有機質繊維等の一種或いは複種の充填材を適宜配
合したものをさしている。誘導加熱とは高周波磁界を発
生して被加熱体にジュール熱を発生させる手段をさす。
繊維強化材とはガラス、カーボン、ボロン、アラミド、
等の鉱物．有機質繊維のマット、チョップ、クロス等を
さしている。硬化前ＦＲＰ材層とは、繊維強化材と配合
樹脂材とを積層したものをいい、金属芯材面上でこの積
層作業を行う場合と、あらかじめ積層作業をしたシート
状のものも含まれる。冷却手段とは、配合樹脂材や硬化
前ＦＲＰ材から発生する自己発熱や誘導加熱により金属
芯体に生じた余分な熱により、配合樹脂材や硬化前ＦＲ
Ｐ材が帯びている熱が適度の温度になるように外的に制
御できる手段をいう。具体的な発明の構成は次のとおり
である。Means for Solving the Problems The present invention has taken the following technical means to solve the above problems and achieve the object. The metal core which can be induction-heated here means that an induction current is generated by an induction heating means on an object to be heated such as metal by electromagnetic induction, and the induction current generated in the object to be heated itself and the conductor. Metal plates, metal rods, metal nets, mesh plates (expanded metal), perforated plates (punched metal), etc., that generate heat due to resistance. A compounded resin material is a thermosetting synthetic resin whose curing is accelerated by external heating, a curing agent and, if necessary, calcium carbonate, aluminum hydroxide, clay, talc, silica, short glass fiber, sand, stone, Glass powder, thermoplastic, micro balloon, wood powder, barium sulfate, magnesium oxide,
mineral. A material obtained by appropriately mixing one or more kinds of fillers such as organic fibers. Induction heating refers to means for generating a high-frequency magnetic field to generate Joule heat in a body to be heated.
Fiber reinforcement is glass, carbon, boron, aramid,
And other minerals. It refers to organic fiber mats, chops, cloths, etc. The FRP material layer before curing refers to a layer obtained by laminating a fiber reinforced material and a compounded resin material, and includes a case where the laminating operation is performed on the surface of the metal core material and a sheet-shaped layer that has been laminated in advance. The cooling means means the self-heating generated from the compounded resin material or the FRP material before curing or the extra heat generated in the metal core by the induction heating, and the compounded resin material or the FR before curing.
This means means that can be externally controlled so that the heat carried by the P material becomes an appropriate temperature. The specific configuration of the invention is as follows.
【０００５】誘導加熱可能な金属芯材を配合樹脂材層で
被覆して全体形を成形した後、誘導加熱手段により前記
金属芯材を発熱させることによって配合樹脂材層を内部
で加熱させると同時に、冷却手段により配合樹脂材層外
面を強制的に冷却制御させることによって配合樹脂材層
を短時間で硬化させる樹脂成形体の製造方法。[0005] After the metal core material capable of induction heating is covered with the compounded resin material layer to form an overall shape, the compounded resin material layer is heated inside by heating the metal core material by induction heating means. And a method for producing a resin molded article in which the compounding resin material layer is hardened in a short time by forcibly controlling cooling of the compounding resin material layer outer surface by cooling means.
【０００６】配合樹脂材により全体形を成形した後、硬
化剤の化学的反応により配合樹脂材を内部から自己発熱
させると同時に、冷却手段により配合樹脂材層外面を強
制的に冷却制御させることによって配合樹脂材層を短時
間で硬化させる樹脂成形体の製造方法。After the overall shape is formed from the compounded resin material, the compounded resin material is self-heated from the inside by the chemical reaction of the curing agent, and simultaneously, the cooling means forcibly controls the cooling of the outer surface of the compounded resin material layer. A method for producing a resin molded product in which a compounded resin material layer is cured in a short time.
【０００７】誘導加熱可能な金属芯材を、繊維強化材に
配合樹脂材を積層させた硬化前ＦＲＰ材層で被覆して全
体形を一体に成形した後、誘導加熱手段により前記金属
芯材を発熱させることによって硬化前ＦＲＰ材層を内部
で加熱させると同時に、冷却手段により硬化前ＦＲＰ材
層外面を強制的に冷却制御させることによって硬化前Ｆ
ＲＰ材層を短時間で硬化させる樹脂成形体の製造方法。[0007] A metal core material capable of induction heating is coated with a pre-cured FRP material layer in which a compounded resin material is laminated on a fiber reinforced material, and the whole shape is integrally formed. The pre-curing FRP material layer is internally heated by generating heat, and at the same time, the cooling means is forcibly controlled to cool the outer surface of the pre-curing FRP material layer by a cooling means.
A method for producing a resin molded product in which a RP material layer is cured in a short time.
【０００８】誘導加熱可能な金属芯材を成形体の形状に
成形した誘導加熱可能な金属芯材成形体を配合樹脂材層
で被覆して全体形を一体に成形した後、誘導加熱手段に
より前記金属芯材成形体を発熱させることによって配合
樹脂材層を内部で加熱させると同時に、冷却手段により
配合樹脂材層外面を強制的に冷却制御させることによっ
て配合樹脂材層を短時間で硬化させる樹脂成形体の製造
方法。[0008] An induction-heatable metal core material formed by molding an induction-heatable metal core material into a molded body is covered with a compounded resin material layer, and the whole shape is integrally formed. A resin that heats the compound resin layer inside by causing the metal core material molded body to generate heat and simultaneously hardens the compound resin layer by cooling the external surface of the compound resin layer by cooling means. A method for producing a molded article.
【０００９】ＦＲＰ成形において、繊維強化材に配合樹
脂材を積層して硬化前ＦＲＰ材層を形成して全体形を一
体に成形した後、硬化前ＦＲＰ材層を硬化剤の化学的反
応により内部で自己発熱させると同時に、冷却手段によ
り硬化前ＦＲＰ材層外面を強制的に冷却制御させること
によって硬化前ＦＲＰ材層を短時間で硬化させる樹脂成
形体の製造方法。In the FRP molding, a compound resin material is laminated on a fiber reinforced material to form an uncured FRP material layer, and the whole shape is integrally formed. Then, the uncured FRP material layer is internally formed by a chemical reaction of a curing agent. And a method for producing a resin molded body in which the FRP material layer before curing is hardened in a short time by forcibly controlling the cooling of the outer surface of the FRP material layer before curing by cooling means simultaneously with self-heating.
【００１０】誘導加熱可能な金属芯材を成形体の形状に
成形した金属芯材成形体を硬化前ＦＲＰ材層で被覆して
全体形を一体に成形した後、誘導加熱手段により前記誘
導加熱可能な金属芯材を発熱させることによって硬化前
ＦＲＰ材層を内部で加熱させると同時に、冷却手段によ
り硬化前ＦＲＰ材層の外面を強制的に冷却制御させるこ
とによって硬化前ＦＲＰ材層を短時間で硬化させる樹脂
成形体の製造方法。[0010] A metal core material formed by molding a metal core material capable of induction heating into a shape of a molded body is covered with a pre-cured FRP material layer to form an integral shape, and then the induction heating is performed by induction heating means. The pre-cured FRP material layer is heated inside by generating heat from the metal core material, and the outer surface of the pre-cured FRP material layer is forcibly controlled to be cooled by the cooling means so that the pre-cured FRP material layer can be heated in a short time. A method for producing a resin molded product to be cured.
【００１１】電磁波を漏洩しない遮電磁系に、硬化前樹
脂成形体中の誘導加熱可能な金属芯材を発熱させるため
の誘導加熱手段と、発熱する金属芯材により加熱される
硬化前樹脂成形体を強制冷却させる冷却手段とを配設し
た樹脂成形体の硬化装置。Induction heating means for causing an inductively heatable metal core material in the pre-cured resin molded body to generate heat in an electromagnetic shielding system which does not leak electromagnetic waves, and a pre-cured resin molded body heated by the heated metal core material And a cooling means for forcibly cooling the resin.
【００１２】[0012]
【作用】上記のように構成されたこの発明は次のような
作用を有している。すなわち、樹脂成形体を例えば板状
製品として見た場合、板の厚み中間部に例えば粗目シー
ト状の誘導加熱可能な金属芯材が芯として介在して、そ
れを被覆する配合樹脂材層及び硬化前ＦＲＰ材層は金属
芯材の目孔を介して連続一体に結合している。ここで製
造時において、硬化前の樹脂成形体に誘導加熱手段を近
接させて誘導加熱をすると、誘導加熱可能な金属芯材に
誘導電流が生じ、金属芯材の抵抗により発熱して、硬化
前ＦＲＰ材層を内部から加熱させて熱硬化性樹脂の配合
樹脂材、及び硬化前ＦＲＰ材層を硬化させることができ
る。この場合の加熱温度は高い方が短時間で樹脂成形体
を硬化させることができる。しかし、高熱が樹脂成形体
に長く留まると温度むらが生じて焼け、歪、ひび、等が
生じやすいので、中の高熱を早く外に放熱させることが
好ましい。そこで硬化処理工程中に樹脂成形体外面を冷
却手段により強制的に冷却させることによって熱交換が
促進され、樹脂成形体内部の高熱が外へ短時間で移動放
熱される。これによって、４ないし６時間もかかってい
た硬化処理工程が１５分ないし３０分という短時間で歪
などの障害を受けることなく硬化させることができる。The present invention configured as described above has the following functions. That is, when the resin molded product is viewed as a plate-shaped product, for example, a coarse sheet-shaped induction-heatable metal core is interposed as a core in the middle of the thickness of the plate, and the compounded resin material layer covering the core is cured. The front FRP material layer is continuously and integrally connected via the holes of the metal core material. Here, at the time of manufacturing, when induction heating is performed by bringing the induction heating means close to the resin molded body before curing, an induction current is generated in the metal core material capable of induction heating, and heat is generated due to the resistance of the metal core material. The FRP material layer can be heated from the inside to cure the thermosetting resin blended resin material and the FRP material layer before curing. In this case, the higher the heating temperature, the more quickly the resin molded body can be cured. However, if the high heat stays in the resin molded body for a long time, unevenness in temperature occurs, and burning, distortion, cracks, and the like are likely to occur. Therefore, heat exchange is promoted by forcibly cooling the outer surface of the resin molded body by the cooling means during the curing process, and the high heat inside the resin molded body moves to the outside and is radiated in a short time. As a result, the curing process, which took 4 to 6 hours, can be cured in a short time of 15 to 30 minutes without being affected by distortion or the like.
【００１３】電磁波を漏洩しない遮電磁系に、硬化前樹
脂成形体中の誘導加熱可能な金属芯材を発熱させるため
の誘導加熱手段と、発熱する金属芯材により加熱される
硬化前樹脂成形体を強制冷却させる冷却手段とを配設す
ることによって、誘導加熱手段により誘導加熱可能な金
属芯材を発熱させる場合、余分な電磁波が外部に漏れる
ことがなく、また余分な電磁波を電力として回収する手
段を講じることができる。Induction heating means for causing an induction-heatable metal core material in the pre-cured resin molded body to generate heat in an electromagnetic shielding system that does not leak electromagnetic waves, and a pre-cured resin molded body heated by the heated metal core material When a metal core material that can be induction-heated by the induction heating means is provided with cooling means for forcibly cooling the metal core material, no extraneous electromagnetic waves leak to the outside and the extraneous electromagnetic waves are collected as electric power. Measures can be taken.
【００１４】[0014]
【発明の実施の形態】この発明の実施の形態例を図面に
基づいて説明する。図１は粗目シート状の誘導加熱可能
な金属芯材を加工して堰板状の成形体とした誘導加熱可
能な金属芯材成形体の斜視図、図２は樹脂成形体の製造
方法を示す側面図である。図１において、例えば網目板
（エキスパンデットメタル）からなる金属芯材１を加工
して、堰板状の金属芯材成形体２を形成した。この状態
で金属芯材１は例えば肉厚１みり程度のものであるため
広面方向に撓み性が生じる状態である。この金属芯材成
形体２の表面に、配合樹脂材３と繊維強化材４の積層に
よる硬化前ＦＲＰ材層５を形成した状態で全体の成形を
完成させる。しかる後、硬化前ＦＲＰ材層５を硬化させ
ることによって樹脂成形体６が完成する。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an induction-heatable metal core material formed by processing a coarse sheet-like induction-heatable metal core material to form a weir plate-shaped molded product, and FIG. 2 shows a method of manufacturing a resin molded product. It is a side view. In FIG. 1, a metal core material 1 made of, for example, a mesh plate (expanded metal) was processed to form a dam core-shaped metal core material molded body 2. In this state, the metal core material 1 has a thickness of, for example, about 1 mil, and is in a state in which flexibility occurs in a wide surface direction. The entire molding is completed with the FRP material layer 5 before curing formed by laminating the compound resin material 3 and the fiber reinforcing material 4 on the surface of the metal core material molded body 2. Thereafter, the FRP material layer 5 before curing is cured to complete the resin molded body 6.
【００１５】この場合、硬化前の配合樹脂材層３及び硬
化前ＦＲＰ材層５を加熱させる熱は配合樹脂材に配合さ
れる硬化剤による化学反応によるもののみでもよいが、
硬化完了までに通常では４ないし６時間も要するので、
短時間で硬化させるためには高熱を出すように硬化剤を
調合して配合するか、成形体に誘導加熱手段７を近接さ
せて中の金属芯材成形体２にジユール熱を発生させるこ
とによって硬化前ＦＲＰ材層５を加熱させて硬化を促進
させることができる。すなわち、短時間成形を可能にす
る。ＦＲＰ成形の場合、ハンドレイアップ成形方法やス
プレイアップ成形方法においては、一方の面にはＦＲＰ
製型があり、反対側は外気と接しているため、これから
みても成形品の中で温度むらが生じ、不具合が出る可能
性が高い。それを防止するためには、例えば図２に示す
ような誘導加熱手段７に前記硬化前の樹脂成形体６Ａを
近接させて誘導加熱手段７により硬化前の樹脂成形体６
Ａ中の金属芯材成形体２に誘導電流と導体の抵抗による
ジユール熱を発生させることによって硬化前ＦＲＰ材層
５を平均的な熱交換により加熱することができ、両面と
も同じ条件で硬化させることが可能になる。In this case, the heat for heating the compounded resin material layer 3 before curing and the FRP material layer 5 before curing may be only due to a chemical reaction caused by a curing agent mixed in the compounded resin material.
It usually takes 4 to 6 hours to complete curing,
In order to cure in a short time, a curing agent is blended and mixed so as to generate high heat, or the induction heating means 7 is brought close to the molded body to generate the Joule heat in the metal core material molded body 2 therein. The FRP material layer 5 before curing can be heated to accelerate the curing. That is, molding can be performed in a short time. In the case of FRP molding, in the hand lay-up molding method or the spray-up molding method, FRP
Since there is a mold and the opposite side is in contact with the outside air, even from this point of view, there is a high possibility that unevenness in temperature will occur in the molded product and a problem will occur. In order to prevent this, for example, the resin molded body 6A before curing is brought close to the induction heating means 7 as shown in FIG.
By generating the Joule heat due to the induced current and the resistance of the conductor in the metal core material molded body 2 in A, the FRP material layer 5 before curing can be heated by average heat exchange, and both surfaces are cured under the same conditions. It becomes possible.
【００１６】しかしながら、品質に配慮すると比較的低
温での４ないし６時間という長時間加熱を余儀なくさ
れ、短時間での仕上げには高温加熱をすればよいが、熱
伝導の関係で、配合樹脂材及び硬化前ＦＲＰ材層５の中
に高熱が部分的に蓄積されると製品に歪が生じるという
マイナス面がある。すなわち、例えば配合樹脂材及び硬
化前ＦＲＰ材層５に１００の熱を加熱している場合、平
均して１００の熱が配合樹脂材及び硬化前ＦＲＰ材層５
にかかればよいが、部分的に蓄熱されて１２０の部分と
９０の部分が生じると、硬化に不均一が生じるから、歪
が生じる。従って平均して１００の熱を供給し、配合樹
脂材及び硬化前ＦＲＰ材層５に平均して１００の熱がか
かるようにするために、本願発明では、配合樹脂材及び
硬化前ＦＲＰ材層５に対する内部的な高温加熱と同時に
外的に強制的な冷却を施すことにした。図２において、
高周波を外に洩らさないための遮電磁系の硬化装置８に
誘導加熱手段７が配設されている。該硬化装置８に冷却
手段９が並設されている。前記金属芯体成形体２を硬化
前ＦＲＰ材層５で覆った硬化前樹脂成形体６Ａを硬化装
置８の誘導加熱手段７に近接させて配置し、誘導加熱手
段７から高周波磁界を出力させると、硬化前樹脂成形体
６Ａ中の金属芯体成形体２に誘導電流が生じ、ジユール
熱を発熱するので、所望の設定温度まで硬化前樹脂成形
体６Ａを加熱させることができる。これによって硬化前
樹脂成形体６Ａは硬化が進行する。しかして、例えば前
記冷却手段９の冷気送入口９Ａから冷気を硬化装置８に
吐出させ、排熱口９Ｂから排熱させることによって、内
部から加熱されている硬化前樹脂成形体６Ａは外面から
強制的に冷却させられるために、内部から高温で加熱さ
れても硬化前樹脂成形体６Ａの内部の熱は温度差によっ
て急速に外面へと熱伝導されて、硬化前樹脂成形体６Ａ
の不必要な熱は外へと放熱される。すなわち、内部加熱
温度が高熱で、外部が低温なので、その大きな温度差に
よって、内部の熱は高速で硬化前樹脂成形体６Ａの外方
へと熱伝導されていくため、硬化前樹脂成形体６Ａを硬
化させるために必要な熱は高速で硬化前樹脂成形体６Ａ
全域に供給される。不必要な熱はどんどん放熱されるこ
とから１５分ないし２０分という驚異的な短時間で硬化
前樹脂成形体６Ａが完全に硬化する。しかして不必要な
熱は外へと放熱されるので、不必要な熱が樹脂成形体の
中で部分的に蓄積されるということがないため、歪、白
化、膨れ、など障害が生じることがない。However, in consideration of quality, heating at a relatively low temperature for a long time of 4 to 6 hours is inevitable. For finishing in a short time, heating at a high temperature may be carried out. In addition, there is a downside that when high heat is partially accumulated in the FRP material layer 5 before curing, the product is distorted. That is, for example, when 100 heat is applied to the compounded resin material and the FRP material layer 5 before curing, the heat of 100 is averaged on the compounded resin material and the FRP material layer 5 before curing.
However, if the heat is partially stored and the portions 120 and 90 are generated, uneven curing occurs, and thus distortion occurs. Therefore, in order to supply an average of 100 heat and apply an average of 100 heat to the compounded resin material and the FRP material layer 5 before curing, in the present invention, the compounded resin material and the FRP material layer 5 before curing are applied. In addition to the internal high-temperature heating, forced external cooling was performed. In FIG.
An induction heating means 7 is provided in a hardening device 8 of an electromagnetic shielding system for preventing high frequency waves from leaking out. Cooling means 9 is provided in parallel with the curing device 8. When the pre-cured resin molded body 6A in which the metal core molded body 2 is covered with the pre-cured FRP material layer 5 is arranged close to the induction heating means 7 of the curing device 8, and the induction heating means 7 outputs a high-frequency magnetic field. Since an induced current is generated in the metal core molded body 2 in the pre-cured resin molded body 6A and generates Joule heat, the pre-cured resin molded body 6A can be heated to a desired set temperature. Thereby, the pre-cured resin molded body 6A is cured. Thus, for example, by discharging cold air from the cool air inlet 9A of the cooling means 9 to the curing device 8 and discharging heat from the heat discharge port 9B, the pre-cured resin molded body 6A that is heated from the inside is forcibly forced from the outer surface. Even if the pre-cured resin molded product 6A is heated at a high temperature from the inside, the heat inside the pre-cured resin molded product 6A is rapidly conducted to the outer surface due to the temperature difference, so that the pre-cured resin molded product 6A
Unnecessary heat is radiated to the outside. That is, since the internal heating temperature is high and the outside temperature is low, the internal temperature is rapidly conducted to the outside of the uncured resin molded product 6A due to the large temperature difference. The heat required to cure the resin is high-speed and the pre-cured resin molded body 6A
Supplied throughout. Unnecessary heat is rapidly dissipated, so that the uncured resin molded product 6A is completely cured in a surprisingly short time of 15 to 20 minutes. Unnecessary heat is radiated to the outside, so that unnecessary heat is not partially accumulated in the resin molded body, and distortion, whitening, swelling, and other obstacles may occur. Absent.
【００１７】この加熱温度については、硬化剤を使用し
ても、また誘導加熱手段の使用でも構わず、高温加熱に
対して外的な強制冷却が短時間硬化処理に有効なことが
確認された。なおこの発明においては、前記構成に限定
されるものではなく、適宜設計変更をすることができ
る。例えば前記硬化装置７には、不用な高周波を電力と
して回収する渦電流回収器、或は保温．温度調整機構な
どを配設することができ、また冷却手段はサーモモジュ
ール等を使用することができる。Regarding the heating temperature, it does not matter whether a curing agent is used or an induction heating means is used, and it has been confirmed that external forced cooling for high-temperature heating is effective for short-time curing treatment. . In the present invention, the present invention is not limited to the above configuration, and the design can be changed as appropriate. For example, the curing device 7 includes an eddy current recovery device that recovers unnecessary high frequency power as electric power, or a heat retaining device. A temperature adjusting mechanism or the like can be provided, and a thermo module or the like can be used as a cooling means.
【００１８】[0018]
【発明の効果】以上説明したように、この発明は次のよ
うなすぐれた効果を有している。As described above, the present invention has the following excellent effects.
【００１９】Ａ．従来の加熱温度よりも著しく高熱を使
用するものであるが、外的に冷却することによって、短
時間でむらのない硬化をさせることができることから、
製品製造コストを低下させることができる効果がある。A. Although it uses significantly higher heat than the conventional heating temperature, since it can be cured evenly in a short time by externally cooling,
There is an effect that the product manufacturing cost can be reduced.
【００２０】Ｂ．誘導加熱可能な金属芯体成形体を配合
樹脂材層や硬化前ＦＲＰ材層で被覆し一体に成形するも
のにおいては、誘導加熱可能な金属芯体成形体を誘導加
熱手段によって正確に発熱させ熱管理をすることができ
るという効果があり、製品の品質を向上させることがで
きる効果がある。B. In the case of molding an integrally heatable metal core body with a compounded resin material layer or an uncured FRP material layer and integrally molding the same, the induction heatable metal core body is accurately heated by an induction heating means to generate heat. There is an effect that management can be performed, and there is an effect that product quality can be improved.
【００２１】Ｃ．短時間で製品化することができるよう
になったので、高価なために製造することのできなかっ
た分野の工業材を安価に提供することができる効果があ
る。C. Since it is possible to commercialize the product in a short time, there is an effect that it is possible to provide inexpensively industrial materials in a field that could not be produced because of being expensive.
【００２２】Ｄ．誘導加熱可能な金属芯体成形体を使用
するものにおいては、型を必要とせずに直に配合樹脂材
層ゃ硬化前ＦＲＰ材層を形成することができ、また誘導
加熱可能な金属芯体成形体を誘導加熱によって発熱させ
るので、配合樹脂材層ゃ硬化前ＦＲＰ材層を加熱するた
めの高価な金型を必要としないため、ロットの少ない製
品の製造も安価に製造することができるという効果があ
る。D. In the case of using a metal core formed body capable of induction heating, the compound resin material layer ゃ the FRP material layer before curing can be formed directly without the need for a mold. Since the body is heated by induction heating, it is not necessary to use an expensive mold for heating the compounded resin material layer ゃ the FRP material layer before curing, so that it is possible to manufacture low-volume products at low cost. There is.
【図１】金属芯材成形体の斜視図である。FIG. 1 is a perspective view of a molded metal core material.
【図２】硬化装置の側面図である。FIG. 2 is a side view of a curing device.
１ 金属芯材 ２ 金属芯材成形体 ３ 配合樹脂材 ４ 繊維強化材 ５ 硬化前ＦＲＰ材層 ６ 樹脂成形体 ６Ａ 硬化前樹脂成形体 ７ 誘導加熱手段 ８ 硬化装置 ９ 冷却手段 ９Ａ 冷気送入口 ９Ｂ 排熱口 DESCRIPTION OF SYMBOLS 1 Metal core material 2 Metal core material molded object 3 Mixed resin material 4 Fiber reinforcement 5 FRP material layer before hardening 6 Resin molded body 6A Resin molded body before curing 7 Induction heating means 8 Curing device 9 Cooling means 9A Cold air inlet 9B Discharge Hot mouth
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ２９Ｋ 105:08 105:22 Ｂ２９Ｌ 9:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI B29K 105: 08 105: 22 B29L 9:00
Claims (7)
で被覆して全体形を一体成形した後、誘導加熱手段によ
り前記金属芯材を発熱させることによって配合樹脂材層
を内部で加熱させると同時に、冷却手段により配合樹脂
材層外面を強制的に冷却制御させることによって配合樹
脂材層を短時間で硬化させることを特徴とする樹脂成形
体の製造方法。1. A metal core material capable of induction heating is covered with a compounded resin material layer to integrally form the whole shape, and then the compounded resin material layer is internally heated by causing the metal core material to generate heat by induction heating means. A method for producing a resin molded article, wherein the cooling means forcibly controls the outer surface of the compounded resin material layer to cool the compounded resin material layer in a short time.
硬化剤の化学的反応により配合樹脂材を内部から自己発
熱させると同時に、冷却手段により配合樹脂材層外面を
強制的に冷却制御させることによって配合樹脂材層を短
時間で硬化させることを特徴とする樹脂成形体の製造方
法。2. After forming the whole shape with the compounded resin material,
The compounded resin material is self-heated from the inside by the chemical reaction of the curing agent, and at the same time, the compounded resin material layer is cured in a short time by forcibly controlling the cooling of the outer surface of the compounded resin material layer by cooling means. Of manufacturing a molded resin article.
に配合樹脂材を積層した硬化前ＦＲＰ材層で被覆して全
体形を一体成形した後、誘導加熱手段により前記誘導加
熱可能な金属芯材を発熱させることによって硬化前ＦＲ
Ｐ材層を内部で加熱させると同時に、冷却手段により硬
化前ＦＲＰ材層外面を強制的に冷却制御させることによ
って硬化前ＦＲＰ材層を短時間で硬化させることを特徴
とする樹脂成形体の製造方法。3. An induction-heatable metal core material is covered with a pre-cured FRP material layer obtained by laminating a compounded resin material on a fiber reinforced material to integrally form the whole shape, and then the induction heating means is used for the induction heating. Pre-curing FR by heating the metal core
Manufacturing a resin molded body characterized in that the P material layer is internally heated and, at the same time, the outer surface of the FRP material layer before curing is forcibly controlled to be cooled by cooling means, thereby curing the FRP material layer before curing in a short time. Method.
に成形した誘導加熱可能な金属芯材成形体を配合樹脂材
層で被覆して全体形を一体に成形した後、誘導加熱手段
により前記金属芯材成形体を発熱させることによって配
合樹脂材層を内部で加熱させると同時に、冷却手段によ
り配合樹脂材層外面を強制的に冷却制御させることによ
って配合樹脂材層を短時間で硬化させることを特徴とす
る樹脂成形体の製造方法。4. An induction-heatable metal core material formed by molding an induction-heatable metal core material into the shape of a molded body, and covering the entire shape with a compounded resin material layer to form an integral shape. By causing the metal core material molded body to generate heat, the compounded resin material layer is internally heated by heating, and at the same time, the compounded resin material layer is cured in a short time by forcibly controlling the cooling of the outer surface of the compounded resin material layer by the cooling means. A method for producing a resin molded article, characterized in that:
樹脂材を積層して硬化前ＦＲＰ材層を形成して全体形を
一体に成形した後、硬化前ＦＲＰ材層を硬化剤の化学的
反応により内部で自己発熱させると同時に、冷却手段に
より硬化前ＦＲＰ材層外面を強制的に冷却制御させるこ
とによって硬化前ＦＲＰ材層を短時間で硬化させること
を特徴とする樹脂成形体の製造方法。5. In the FRP molding, after laminating a compounded resin material on a fiber reinforced material to form an uncured FRP material layer and integrally molding the whole shape, the uncured FRP material layer is subjected to a chemical reaction of a curing agent. A method for producing a resin molded article, wherein the FRP material layer before curing is cured in a short time by simultaneously causing self-heating inside the FRP material layer by cooling means and forcibly controlling the outer surface of the FRP material layer before curing by cooling means.
に成形た金属芯材成形体を硬化前ＦＲＰ材層で被覆して
全体形を一体に成形した後、誘導加熱手段により前記誘
導加熱可能な金属芯材を発熱させることによって硬化前
ＦＲＰ材層を内部で加熱させると同時に、冷却手段によ
り硬化前ＦＲＰ材層の外面を強制的に冷却制御させるこ
とによって硬化前ＦＲＰ材層を短時間で硬化させること
を特徴とする樹脂成形体の製造方法。6. A metal core material formed by shaping a metal core material capable of induction heating into a shape of a molded body is coated with an FRP material layer before curing to integrally form the entire shape, and then the induction heating means is used for the induction heating. The pre-cured FRP material layer is heated internally by causing the heatable metal core material to generate heat, and at the same time, the cooling means forcibly controls the outer surface of the pre-cured FRP material layer to thereby shorten the pre-cured FRP material layer. A method for producing a resin molded product, which is cured in a short time.
樹脂成形体中の誘導加熱可能な金属芯材を発熱させるた
めの誘導加熱手段と、発熱する金属芯材により加熱され
る硬化前樹脂成形体を強制冷却させる冷却手段とを配設
したことを特徴とする樹脂成形体の硬化装置。7. An induction heating means for causing an induction-heatable metal core material in a pre-cured resin molded body to generate heat in an electromagnetic shielding system that does not leak electromagnetic waves, and a pre-cured resin heated by the heat-generating metal core material. A curing device for a resin molded product, comprising: cooling means for forcibly cooling the molded product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9092777A JPH10272634A (en) | 1997-03-28 | 1997-03-28 | Manufacture of resin molded body and curing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9092777A JPH10272634A (en) | 1997-03-28 | 1997-03-28 | Manufacture of resin molded body and curing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10272634A true JPH10272634A (en) | 1998-10-13 |
Family
ID=14063860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9092777A Pending JPH10272634A (en) | 1997-03-28 | 1997-03-28 | Manufacture of resin molded body and curing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10272634A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003078140A1 (en) * | 2002-03-18 | 2003-09-25 | Kabushiki Kaisha Bridgestone | Method and device for coating steel cord and steel wire with rubber |
| JP2017020558A (en) * | 2015-07-09 | 2017-01-26 | 八千代工業株式会社 | Pressure container and its manufacturing method |
-
1997
- 1997-03-28 JP JP9092777A patent/JPH10272634A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003078140A1 (en) * | 2002-03-18 | 2003-09-25 | Kabushiki Kaisha Bridgestone | Method and device for coating steel cord and steel wire with rubber |
| JP2017020558A (en) * | 2015-07-09 | 2017-01-26 | 八千代工業株式会社 | Pressure container and its manufacturing method |
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