JPH0445915A - Molding of laminated molding - Google Patents
Molding of laminated moldingInfo
- Publication number
- JPH0445915A JPH0445915A JP2156424A JP15642490A JPH0445915A JP H0445915 A JPH0445915 A JP H0445915A JP 2156424 A JP2156424 A JP 2156424A JP 15642490 A JP15642490 A JP 15642490A JP H0445915 A JPH0445915 A JP H0445915A
- Authority
- JP
- Japan
- Prior art keywords
- core material
- reinforcing core
- resin
- thermoplastic resin
- hollow part
- 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
- 238000000465 moulding Methods 0.000 title claims description 17
- 239000011162 core material Substances 0.000 claims abstract description 58
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 43
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 31
- 239000011347 resin Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000007765 extrusion coating Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 5
- 238000004904 shortening Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 16
- 239000000839 emulsion Substances 0.000 description 5
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004801 Chlorinated PVC Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、補強芯材に熱可塑性樹脂を押出被覆して成形
する熱収縮性に優れた積層成形品の成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for molding a laminate molded product with excellent heat shrinkability, in which a reinforcing core material is extrusion coated with a thermoplastic resin and molded.
（従来の技術）
従来から補強芯材に熱可塑性樹脂を押出被覆して成形す
る積層成形品は、クロスヘツド金型により成形している
。クロスヘツド金型により補強芯材に熱可塑性樹脂を押
出被覆するとき、補強芯材両端が金型と接触し、変形、
切断したりするとともに、補強芯材と押出樹脂との断面
形状が異なると押出樹脂にバックフローを生じて表面被
覆が良好にできない等の成形上の問題があった。それを
解消するために、第３図に示すように、補強芯材３０の
幅方向端部でこの補強芯材３０の一部を連続的に折り曲
げて積層し、中空部４０を形成して成形したものを、外
側面を熱可塑性樹脂５０で押出被覆していた。しかし、
このように中空部４０を形成して成形したものを切断す
ると、内側の補強芯材３０が露出しているため、補強芯
材３０のケバ立ち等を生じた。そこで、クロスヘツド金
型にブリッジ部を設け、このブリッジ部から中空部の内
側に樹脂を注入しコーティングするとか、または、補強
芯材に賦形前に熱可塑性樹脂をコーティングする等して
いた。(Prior Art) Conventionally, laminate molded products in which a reinforcing core material is coated with a thermoplastic resin by extrusion have been molded using a crosshead mold. When extruding thermoplastic resin to the reinforcing core material using a crosshead mold, both ends of the reinforcing core material come into contact with the mold, causing deformation and
In addition to cutting, if the reinforcing core material and the extruded resin have different cross-sectional shapes, backflow occurs in the extruded resin, resulting in problems in molding, such as poor surface coverage. In order to solve this problem, as shown in FIG. 3, a part of the reinforcing core material 30 is continuously bent and laminated at the widthwise end of the reinforcing core material 30 to form a hollow part 40 and molded. The outer surface of the sample was coated with a thermoplastic resin 50 by extrusion. but,
When the molded product having the hollow portion 40 formed in this manner is cut, the inner reinforcing core material 30 is exposed, so that the reinforcing core material 30 becomes fluffy. Therefore, a bridge part is provided in the crosshead mold, and a resin is injected into the inside of the hollow part from this bridge part to coat the hollow part, or the reinforcing core material is coated with a thermoplastic resin before being shaped.
（発明が解決しようとする課題）
しかし、上記クロスヘツド金型にブリッジ部を設ける方
法では、補強芯材の賦形が困難で、金型加工が困難であ
る等の問題があった。また賦形前に熱可塑性樹脂をコー
ティングする方法では、補強芯材の賦形が困難で、設備
コストがかかる等の問題があった。(Problems to be Solved by the Invention) However, the method of providing the bridge portion in the crosshead mold has problems such as difficulty in shaping the reinforcing core material and difficulty in mold processing. Furthermore, the method of coating the reinforcing core material with a thermoplastic resin before shaping has problems such as difficulty in shaping the reinforcing core material and increased equipment costs.
本発明の目的は、上記問題点を解決し、外観、施二ロ性
、成形性に優れた積層成形品の中空部内面芯材のコーテ
ィング成形方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a method for coating and molding a core material on the inner surface of a hollow part of a laminate molded product having excellent appearance, moldability, and moldability.
（課題を解決するだめの手段）
本発明の１１Ｎ成形晶の中空部内面芯材のコーティング
成形方法は、補強芯材に熱可塑性樹脂を押出被覆して積
層成形品を成形する方法において、上記補強芯材を積層
して形成した中空部の内側に液状樹脂を中空部成形コア
の先端より噴霧状態で噴出させさせてコーティングする
ことを特徴とする。(Another Means to Solve the Problems) The coating molding method for the core material on the inner surface of the hollow part of the 11N molded crystal of the present invention is a method for molding a laminate molded product by extrusion coating a reinforcing core material with a thermoplastic resin. The inside of the hollow part formed by laminating the core materials is coated by spraying liquid resin from the tip of the hollow part molding core.
本発明の補強芯材としては、繊維フィラメントの集束体
に熱可塑性樹脂粉もしくはエマルシコンまたは熱硬化性
樹脂を含浸させて厚みを０１０２〜１．０ｍｍに形成し
たものを用いる。、繊維フィラメントの集束体に熱可塑
性樹脂を含浸さ口゛る方法には、（１）粉体状の熱可塑
性樹脂の流動床中を通過させ、フィラメント間に熱可塑
性樹脂を含浸する、（２）粉体状熱可塑性樹脂を分散し
た液体の槽中を通過させたのち乾燥する、（３）溶融し
た熱可塑性樹脂の槽中を通過して繊維フィラメント間に
熱可塑性樹脂を付着させたのら乾燥し、そのまま補強芯
＋２とするか、または熱可塑性樹脂を加熱溶融させるか
１、または加熱された加圧しトールによって一体化し、
紐状あるいはテープ状に成形してもよい。（４）液体熱
硬化性樹脂の場合には、熱硬化性樹脂の槽中を通過して
繊維フィラメント間に熱可塑性樹脂を付着させたのち乾
燥し、そのまま補強芯材とする。（１）、（２）の方法
による場合には、フィラメント間に含浸された熱可塑性
樹脂は粉末状のまま使用に供することもできる。As the reinforcing core material of the present invention, a bundle of fiber filaments is impregnated with thermoplastic resin powder, emulsion, or thermosetting resin to have a thickness of 0.102 mm to 1.0 mm. The method of impregnating a bundle of fiber filaments with a thermoplastic resin includes (1) passing it through a fluidized bed of powdered thermoplastic resin to impregnate the spaces between the filaments with the thermoplastic resin; ) Drying after passing through a liquid bath in which powdered thermoplastic resin is dispersed; (3) Drying after passing through a bath containing molten thermoplastic resin to adhere the thermoplastic resin between the fiber filaments. Dry it and use it as it is to make the reinforcing core +2, or heat and melt the thermoplastic resin1, or integrate it by heating and pressurizing it.
It may be formed into a string or tape shape. (4) In the case of a liquid thermosetting resin, the resin is passed through a thermosetting resin bath to adhere the thermoplastic resin between the fiber filaments, dried, and used as a reinforcing core material. In the case of methods (1) and (2), the thermoplastic resin impregnated between the filaments can be used in powder form.
補強芯材の厚みを０５０２〜１．０ｍｍにしたのは、厚
ずぎたり薄すぎたりすると、積層成形品の成形が困難に
なり、成形用として適さなくなるからである。補強芯材
中の繊維と含浸させた樹脂の比率は積層成形品に応じて
適宜に選ばれる。The reason why the thickness of the reinforcing core material is set to 0.502 mm to 1.0 mm is because if it is too thick or too thin, it will be difficult to form a laminate molded product, making it unsuitable for molding. The ratio of the fibers in the reinforcing core material to the impregnated resin is appropriately selected depending on the laminated molded product.
繊維フィラメントの集束体とは、直径が数μｍ〜数十数
十μ線維フィラメンＩ・が数十本〜数千木集合してなる
ものであって、ロービング、ヤーン、または織布、不織
布、紐状、テープ状、ネット状等その形態、名称等は問
わず適宜にえらばれる。A bundle of fiber filaments is a collection of tens to thousands of fiber filaments I with a diameter of several micrometers to several tens of micrometers, and is composed of rovings, yarns, woven fabrics, nonwoven fabrics, strings, etc. The shape, name, etc., such as shape, tape shape, net shape, etc., can be selected as appropriate.
また、繊維としては、無機繊維、有機繊維、合成繊維、
天然繊維等その名称は問わず、ガラス繊維、金属繊維、
セラミック繊維、炭素繊維、アラミド繊維、ケブラー繊
維、ポリエステル繊維、ポリエチレン繊維、ビニロン繊
維、ナイロン繊維、綿等を用いることができる。In addition, fibers include inorganic fibers, organic fibers, synthetic fibers,
Natural fibers, etc. Regardless of their name, glass fibers, metal fibers,
Ceramic fibers, carbon fibers, aramid fibers, Kevlar fibers, polyester fibers, polyethylene fibers, vinylon fibers, nylon fibers, cotton, etc. can be used.
補強芯材の形成に用いられる熱可塑性樹脂としては、ア
クリル樹脂、ポリ塩化ビニル樹脂、塩素化ポリ塩化ビニ
ル樹脂、ポリエチレン樹脂、ポリプロピレン樹脂、ポリ
スチレン樹脂、ポリアミド樹脂、ポリカーボネート樹脂
、ポリフェニレンサルファイド樹脂、ポリスルホン樹脂
、ポリエーテルエーテルケトン樹脂等、およびこれらの
共重合体が挙げられ、粉体状またはエマルジョン状態で
用いられる。熱硬化性樹脂としては、例えば、フェノー
ル樹脂、不飽和ポリエステル樹脂、エポキシ樹脂、ジア
クリルフタ１／−ト樹脂等が用いられる。これらの樹脂
は、単体で、または混合して、または硬化触媒を加えて
もよく、補強芯材の使用目的に適した樹脂が使用される
。また、これらの樹脂に熱安定剤、可塑剤、滑剤、酸化
防１ト剤、紫外線吸収剤、顔料、無機充填材、強化繊維
等の充填材、添加剤、ｊＪｎ工助剤、改質剤等を使用目
的に応じて加えてもよい。Thermoplastic resins used to form the reinforcing core material include acrylic resin, polyvinyl chloride resin, chlorinated polyvinyl chloride resin, polyethylene resin, polypropylene resin, polystyrene resin, polyamide resin, polycarbonate resin, polyphenylene sulfide resin, and polysulfone resin. , polyetheretherketone resin, etc., and copolymers thereof, which are used in powder or emulsion form. As the thermosetting resin, for example, phenol resin, unsaturated polyester resin, epoxy resin, diacrylphate resin, etc. are used. These resins may be used alone or in a mixture, or a curing catalyst may be added thereto, and a resin suitable for the intended use of the reinforcing core material is used. In addition, heat stabilizers, plasticizers, lubricants, antioxidants, ultraviolet absorbers, pigments, inorganic fillers, fillers such as reinforcing fibers, additives, processing aids, modifiers, etc. are added to these resins. It may be added depending on the purpose of use.
押出被覆する熱可塑性樹脂としては、上記形成に用いら
れる熱可塑性樹脂と同じものが用いられる。中空部に噴
射する熱可塑性樹脂としては、上記補強芯材の形成に用
いられる熱可塑性樹脂と同じものが用いられ、これらの
樹脂は、エマルシコン、サスペンション等させて液状化
して用いられる。また、熱硬化性樹脂では、フェノール
樹脂、不飽和ポリエステル樹脂、エポキシ樹脂、ポリウ
レタン樹脂、ジアクリルフタレート樹脂等が液体状態で
用いられる。As the thermoplastic resin for extrusion coating, the same thermoplastic resin as used for the above formation is used. The thermoplastic resin injected into the hollow portion is the same as the thermoplastic resin used to form the reinforcing core material, and these resins are used after being liquefied by emulsion, suspension, etc. Further, as the thermosetting resin, phenol resin, unsaturated polyester resin, epoxy resin, polyurethane resin, diacryl phthalate resin, etc. are used in a liquid state.
本発明の被覆成形後の樹脂の厚みは成形品の用途によっ
ても異なるが、通常０．５〜ｉ、、ｏｍｍに押出被覆が
なされる。The thickness of the resin after coating of the present invention varies depending on the use of the molded article, but extrusion coating is usually performed to a thickness of 0.5 to 0.0 mm.
以下、図面を参照しながら本発明を説明する。The present invention will be described below with reference to the drawings.
図において、１は補強芯材で、図示していない含浸工程
によって強化繊維に熱可塑性樹脂が含浸されて形成され
ている。この補強芯材ｌが巻かれたロールが繰出機２に
装着されている。繰出ａ２から補強芯材１を巻出してプ
レフォーミング３に導き、このプレフォーミング３にお
いて、補強芯材１に所定の形に賦形すると同時に、端部
を中央方向の一部に積層して中空部４を形成する。次い
で５、加熱されたクロスヘツド金型５において、力［１
熱された押出機６から押出される熱可塑性樹脂が補強芯
＋Ａ１に押出し被覆される。この補強芯材１の中空部４
が通過するクロスヘツド金型５の芯部にば噴霧［１５ａ
が設けられ、この噴霧口５ａはチューブ７により高圧空
気を供給するコンプレッサ８と、液体状熱可塑性樹脂を
供給するポンプ９に連絡されている。そして、このクロ
ス・＼ソド金型５において、補強芯材ｌの中空部４内に
熱可塑性樹脂が噴霧され、中空部４の内側が：コーティ
ングされ、積層成形品１０とされる。In the figure, reference numeral 1 denotes a reinforcing core material, which is formed by impregnating reinforcing fibers with a thermoplastic resin in an impregnation step (not shown). A roll on which this reinforcing core material l is wound is mounted on a feeding machine 2. The reinforcing core material 1 is unwound from the feed a2 and guided to preforming 3, and in this preforming 3, the reinforcing core material 1 is shaped into a predetermined shape, and at the same time, the ends are laminated in a part in the central direction to form a hollow. Section 4 is formed. Then 5, in the heated crosshead mold 5, the force [1
A thermoplastic resin extruded from the heated extruder 6 is extruded and coated on the reinforcing core +A1. Hollow portion 4 of this reinforcing core material 1
The spray [15a
The spray port 5a is connected through a tube 7 to a compressor 8 that supplies high-pressure air and a pump 9 that supplies liquid thermoplastic resin. Then, in this cloth/sod mold 5, a thermoplastic resin is sprayed into the hollow part 4 of the reinforcing core material l, and the inside of the hollow part 4 is coated to form a laminate molded product 10.
次いで、この積層成形品をサイジング１１において冷却
サイジングを施して、引取機１２で引き取る。Next, this laminated molded product is subjected to cooling sizing in a sizing 11 and taken off by a take-off machine 12.
（作 用）
本発明は、補強芯材に熱可塑性樹脂を押出被覆して積層
成形品を成形する方法において、」−記補強芯材を積層
して形成した中空部の内周面に、液状樹脂を中空部成形
コアの先端より噴霧状態で噴出させてコーティングする
ので、補強芯材への被覆樹脂のバックフローの発生を防
ぎ、良好な外観が形成されるとともに、芯材端部を積層
して形成した中空部内に、液体状熱可塑性樹脂を噴射し
て補強芯材の表面をコーティングするので、良好な表面
が得られ、補強芯材のケバ立ちがなくなる。(Function) The present invention provides a method for molding a laminate molded product by extrusion coating a reinforcing core material with a thermoplastic resin. Since the resin is sprayed and coated from the tip of the hollow molded core, backflow of the coating resin to the reinforcing core material is prevented, a good appearance is formed, and the ends of the core material are laminated. Since the surface of the reinforcing core material is coated by injecting liquid thermoplastic resin into the hollow portion formed by the above process, a good surface is obtained and the reinforcing core material does not become fluffy.
（実施例） 以下、本発明の実施例および比較例を示す。(Example) Examples and comparative examples of the present invention are shown below.
遺１１例□し
エマルジョンタイプの熱可塑性樹脂としてアクリルエマ
ルジョン（固形分濃度３０重量％）をポンプにより２〜
５ｋｇ／ｃｍ２、コンプレッサーよりエアーを２〜５ｋ
ｇ／ｃ＋ｎ２で供給し混合し、この混合したエマルジョ
ンをプレフォーミングおよび金型コア内部を経て、積層
成形品の中空部内部に突出している噴霧１’Ｚｉｌから
噴射し、積層成形品の中空部内部のコーティングを行い
、加熱し、次いで冷却し成形品を製造した。中空部内部
にアクリル樹脂がコーティングされた積層成形品をノコ
ギリで切断して観察したとごろ、中空部内部の芯材のケ
バ立らがなかった。また、中空部の冷却時間が短縮でき
た。Example 11 □An acrylic emulsion (solid content concentration 30% by weight) was pumped as an emulsion-type thermoplastic resin for 2 to 30 minutes.
5kg/cm2, 2-5kg of air from the compressor
g/c+n2 and mixed, and the mixed emulsion is preformed and inside the mold core, and is injected from the spray 1'Zil protruding into the hollow part of the laminate molded product. A molded article was produced by coating, heating, and then cooling. When the laminate molded product whose hollow part was coated with acrylic resin was cut with a saw and observed, there was no fluff on the core material inside the hollow part. In addition, the cooling time of the hollow part could be shortened.
比較膜−Ｖ
積層成形品の中空部内部のコーティングを行わない以外
、実施例］と同様にして成形品を製造した。積層成形品
をノコギリで切断して観察したところ、中空部内部の芯
材のケバ立ちがあった。また、中空部の冷却にむらが生
じ冷却時間が長くな、った。Comparative Membrane-V A molded product was produced in the same manner as in Example except that the inside of the hollow part of the laminate molded product was not coated. When the laminated molded product was cut with a saw and observed, it was found that the core material inside the hollow part was fluffed. In addition, the cooling of the hollow portion was uneven, resulting in a long cooling time.
（発明の効果）
本発明の成形方法によれば、熱可塑性樹脂が押出被覆さ
れてなる積層成形品を成形する方法において、補強芯材
の端部を積層して形成した中空部の内側の補強芯材表面
に、液状樹脂を噴霧することによりコーティングしてい
るため、表面に液状樹脂が良く付着する。その積層成形
品は、ノコギリで切断しても中空部内部の芯材のケバ立
らがなく、外観、施工性に優れ、しかも成形性が良く、
冷却時間も短縮でき生産性が向−１ニする。(Effects of the Invention) According to the molding method of the present invention, in the method of molding a laminate molded product formed by extrusion coating of a thermoplastic resin, reinforcement of the inside of a hollow portion formed by laminating the ends of a reinforcing core material is provided. Since the surface of the core material is coated by spraying liquid resin, the liquid resin adheres well to the surface. The laminated molded product has excellent appearance and workability, with no fuzz on the core material inside the hollow part even when cut with a saw, and has good moldability.
Cooling time can also be shortened, improving productivity.
第１図は本発明の成形方法の工程例の説明図、第２図は
本発明の成形方法を実施する工程の一部分を示す説明図
、第３図は従来の成形方法を実施する工程の一部分を示
す断面図である。
１：補強芯材 ４：中空部
５；金型 ５ａ：噴霧口
特許出順人 積水化学工業株式会社
代表者 廣 １）馨Fig. 1 is an explanatory diagram of a process example of the molding method of the present invention, Fig. 2 is an explanatory diagram showing a part of the process of implementing the molding method of the present invention, and Fig. 3 is a part of the process of implementing the conventional molding method. FIG. 1: Reinforcement core material 4: Hollow part 5; Mold 5a: Spray nozzle patented Junjin Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru
Claims (1)
品を成形する方法において、上記補強芯材を積層して形
成した中空部の内側に液状樹脂を中空部成形コア先端よ
り噴霧状態で噴出させてコーティングすることを特徴と
する積層成形品の成形方法。(1) In a method of molding a laminated molded product by extrusion coating a reinforcing core material with a thermoplastic resin, liquid resin is sprayed from the tip of the hollow molding core inside the hollow part formed by laminating the reinforcing core material. A method for forming a laminate molded product, which is characterized by spraying and coating the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2156424A JPH0445915A (en) | 1990-06-13 | 1990-06-13 | Molding of laminated molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2156424A JPH0445915A (en) | 1990-06-13 | 1990-06-13 | Molding of laminated molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0445915A true JPH0445915A (en) | 1992-02-14 |
Family
ID=15627448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2156424A Pending JPH0445915A (en) | 1990-06-13 | 1990-06-13 | Molding of laminated molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0445915A (en) |
-
1990
- 1990-06-13 JP JP2156424A patent/JPH0445915A/en active Pending
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