JPH0847963A - Blow molding machine and method - Google Patents
Blow molding machine and methodInfo
- Publication number
- JPH0847963A JPH0847963A JP6204588A JP20458894A JPH0847963A JP H0847963 A JPH0847963 A JP H0847963A JP 6204588 A JP6204588 A JP 6204588A JP 20458894 A JP20458894 A JP 20458894A JP H0847963 A JPH0847963 A JP H0847963A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- blow molding
- thermoplastic resin
- molding machine
- teflon
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/272—Cleaning; Purging; Avoiding contamination of dies
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
- B29C48/3003—Materials, coating or lining therefor
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
- B29C49/04116—Extrusion blow-moulding characterised by the die
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、優れた耐衝撃強度及び
外観を有する成形品を得るためのブロー成形機及び該成
形機を用いたブロー成形法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blow molding machine for obtaining a molded product having excellent impact strength and appearance, and a blow molding method using the molding machine.
【０００２】[0002]
【従来の技術】従来より、ブロー成形はボトル等の成形
品を得る方法として、高密度ポリエチレン、低密度ポリ
エチレン、線状低密度ポリエチレン、ポリ塩化ビニル等
の熱可塑性樹脂を用いて実施されてきた。最近は、熱的
性質、機械的性質に優れるいわゆるエンジニアリングプ
ラスチックスを用い、エアーダクト、照明用器具等の電
気・電子部品、エアースポイラー、コンソール等の自動
車部品が製造されている。しかし乍ら、使用されるエン
ジニアリングプラスチックスがブロー成形の際に２００
℃以上の高い温度下で大気中にさらされるために、劣化
による成形品の性能低下が避けられなかった。特に耐衝
撃強度の低下は著しく、使用に耐えるものが得られなか
った。2. Description of the Related Art Conventionally, blow molding has been carried out using thermoplastic resins such as high-density polyethylene, low-density polyethylene, linear low-density polyethylene and polyvinyl chloride as a method for obtaining molded articles such as bottles. . Recently, so-called engineering plastics, which have excellent thermal and mechanical properties, are used to manufacture electric / electronic components such as air ducts and lighting equipment, and automobile components such as air spoilers and consoles. However, if the engineering plastics used are 200
Since it is exposed to the atmosphere at a high temperature of ℃ or more, deterioration of the performance of the molded product due to deterioration cannot be avoided. In particular, the impact strength was markedly reduced, and a product that could be used was not obtained.
【０００３】この問題を改善する目的で、酸化防止剤、
熱安定剤等を多量に添加する方法が行われているが、そ
の効果は満足できるものではなく、また熱安定剤のブリ
ードにより成形品の表面性を低下させ、かえって品質の
低下を生じさせる結果になっていた。For the purpose of improving this problem, antioxidants,
Although a method of adding a large amount of a heat stabilizer, etc. has been carried out, the effect is not satisfactory, and the bleeding of the heat stabilizer reduces the surface property of the molded product, resulting in deterioration of quality. It was.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記問題を
解消し、耐衝撃性等の機械的強度及び成形品の表面性に
優れたブロー成形品を得るためのブロー成形機及びブロ
ー成形法を提供する。DISCLOSURE OF THE INVENTION The present invention solves the above problems and provides a blow molding machine and a blow molding method for obtaining a blow molded product having excellent mechanical strength such as impact resistance and excellent surface property of the molded product. I will provide a.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、これらの
課題を解決するために鋭意検討した結果、ダイリップ等
部にテフロン含有ニッケルメッキを施すことにより、パ
リソン押出時の剪断発熱を低下させ、上記課題が解決さ
れることを見出し本発明に至った。即ち、本発明の第１
は、押出機先端のダイリップ及び／又はノズルリップの
溶融樹脂と接する表面にテフロン含有ニッケルメッキ層
を設けたことを特徴とするブロー成形機を、本発明の第
２は、上記ブロー成形機を用いて熱可塑性樹脂を成形す
ることを特徴とするブロー成形法を、それぞれ内容とす
るものである。Means for Solving the Problems As a result of intensive studies to solve these problems, the present inventors reduced the shear heat generation during extrusion of a parison by applying Teflon-containing nickel plating to the die lip and the like. The inventors have found that the above problems can be solved, and have reached the present invention. That is, the first aspect of the present invention
Is a blow molding machine characterized in that a Teflon-containing nickel plating layer is provided on the surface of the die lip and / or nozzle lip of the extruder in contact with the molten resin, and the second of the present invention uses the blow molding machine. The blow molding method is characterized in that the thermoplastic resin is molded by the blow molding method.
【０００６】本発明を実施例を示す図面に基づいて説明
すると、図１は本発明のブロー成形機の要部断面図であ
る。図１において、押出機先端のダイリップ１及びノズ
ルリップ２の溶融樹脂４と接する表面にテフロン含有ニ
ッケルメッキ層３が設けられている。５はノズル、６は
マンドレル、７はプランジャー、８はダイホルダーで、
９は、ダイリップ１とノズルリップ２とにより画成され
る空隙より押し出されたパリソンである。The present invention will be described with reference to the drawings showing an embodiment. FIG. 1 is a sectional view of the essential parts of a blow molding machine of the present invention. In FIG. 1, a Teflon-containing nickel plating layer 3 is provided on the surfaces of the die lip 1 and the nozzle lip 2 at the tip of the extruder which are in contact with the molten resin 4. 5 is a nozzle, 6 is a mandrel, 7 is a plunger, 8 is a die holder,
Reference numeral 9 is a parison extruded from a space defined by the die lip 1 and the nozzle lip 2.
【０００７】テフロン含有ニッケルメッキ層の組成は所
望の押出し条件により適宜選択されるが、テフロン２〜
２０重量％、ニッケル７５〜９５重量％、燐２〜２０重
量％（三者合わせて１００重量％）が好ましく、この範
囲外では成形品外観の悪化及び耐衝撃性の低下等の問題
が生じる場合がある。また、メッキ層の厚みは特に限定
されないが、５〜１００μｍが好ましく、この範囲外で
はメッキ被膜の耐久性の低下及び均一性不良による成形
品外観低下の問題が生じる場合がある。メッキ法は電解
メッキでもよいが、被膜の均一性が優れている点で無電
解メッキが好ましい。テフロン含有ニッケルメッキ層
は、ダイリップ１又はノズルリップ２のいずれか一方又
は両方に設けられるが、好ましくは両方に設けられる。The composition of the Teflon-containing nickel plating layer is appropriately selected depending on the desired extrusion conditions.
20% by weight, 75 to 95% by weight of nickel, and 2 to 20% by weight of phosphorus (100% by weight of the total of the three) are preferable. Outside this range, problems such as deterioration of the appearance of the molded product and deterioration of impact resistance may occur. There is. The thickness of the plating layer is not particularly limited, but is preferably 5 to 100 μm, and if it is out of this range, the durability of the plating film may deteriorate and the uniformity of the molded product may deteriorate due to poor uniformity. Electroplating may be used as the plating method, but electroless plating is preferred in terms of excellent coating uniformity. The Teflon-containing nickel plating layer is provided on either or both of the die lip 1 and the nozzle lip 2, but is preferably provided on both.
【０００８】本発明に使用される熱可塑性樹脂は成形品
の所望の性能にもよるが、熱的性質としては熱変形温度
で９０℃以上（４．６kg/cm2荷重・ＡＳＴＭ Ｄ−６４
８−５６）のものが好ましく、パリソン又はシートが２
００℃以上の温度において、酸素、水等により劣化が激
しい熱可塑性樹脂が特に好的に適用できる。The thermoplastic resin used in the present invention has thermal properties of 90 ° C. or higher (4.6 kg / cm 2 load / ASTM D-64) depending on the desired performance of the molded product.
8-56) preferred, parison or sheet 2
A thermoplastic resin which is severely deteriorated by oxygen, water or the like at a temperature of 00 ° C. or higher can be applied particularly favorably.
【０００９】熱可塑性樹脂の具体例としては、ポリオレ
フィン系樹脂、塩化ビニル系樹脂、ポリスチレン樹脂、
ＨＩポリスチレン系樹脂、スチレン─ブタジエン─アク
リロニトリルからなるＡＢＳ樹脂、スチレンの一部また
は大部分をα−メチルスチレン、マレイミド等に置き換
えた耐熱ＡＢＳ樹脂、ブタジエンをエチレン−プロピレ
ン系ゴム、ポリブチルアクリレート等に置き換えた（耐
熱）ＡＥＳ、（耐熱）ＡＡＳ樹脂等で例示されるＡＢＳ
系樹脂、（変性）ポリフェニレンエーテル、ポリカーボ
ネート、ポリアミド、ポリプロピレン、ポリアセター
ル、ポリサルフォン、ポリアリレート、ポリエーテルイ
ミド等が挙げられ、これらは単独又は２種以上組み合わ
せて用いられる。Specific examples of the thermoplastic resin include polyolefin resin, vinyl chloride resin, polystyrene resin,
HI polystyrene resin, ABS resin composed of styrene-butadiene-acrylonitrile, heat-resistant ABS resin in which a part or most of styrene is replaced with α-methylstyrene, maleimide, etc., butadiene into ethylene-propylene rubber, polybutyl acrylate, etc. ABS exemplified by the replaced (heat resistant) AES, (heat resistant) AAS resin, etc.
Examples thereof include resin, (modified) polyphenylene ether, polycarbonate, polyamide, polypropylene, polyacetal, polysulfone, polyarylate, and polyetherimide. These may be used alone or in combination of two or more.
【００１０】[0010]
【実施例】以下に実施例及び比較例を示し本発明を更に
具体的に説明するが、これらは本発明を何ら限定するも
のではない。EXAMPLES The present invention will be described in more detail below by showing Examples and Comparative Examples, but these do not limit the present invention in any way.
【００１１】実施例１〜５、比較例１〜５ （イ）実施例及び比較例に用いた熱可塑性樹脂１〜５ 熱可塑性樹脂１ α─メチルスチレン３３．３重量％、ブタジエン２０重
量％、アクリロニトリル２４重量％、スチレン２２．７
重量％からなるＡＢＳ系樹脂１００重量部にフェノール
系酸化剤０．３重量部を添加したもの。熱変形温度１１
０℃。Examples 1 to 5, Comparative Examples 1 to 5 (a) Thermoplastic resins 1 to 5 used in Examples and Comparative Examples 1 to 5 thermoplastic resin 1 α-methylstyrene 33.3% by weight, butadiene 20% by weight, Acrylonitrile 24% by weight, styrene 22.7
One in which 0.3 parts by weight of a phenol-based oxidizer is added to 100 parts by weight of an ABS resin composed of 100% by weight. Heat distortion temperature 11
0 ° C.
【００１２】熱可塑性樹脂２ 熱可塑性樹脂１において、フェノール系酸化剤０．３重
量部に代えてホスファイト系安定剤１重量部を添加した
もの。熱変形温度 １０７℃。Thermoplastic resin 2 Thermoplastic resin 1 containing 1 part by weight of a phosphite-based stabilizer in place of 0.3 part by weight of a phenol-based oxidizing agent. Heat distortion temperature 107 ° C.
【００１３】熱可塑性樹脂３ フェニルマレイミド１３．３重量％、ブタジェン２０重
量％、アクリロニトリル１７．３重量％、スチレン４４
重量％からなるＡＢＳ系樹脂。熱変形温度１２５℃。Thermoplastic resin 3 Phenylmaleimide 13.3% by weight, butadiene 20% by weight, acrylonitrile 17.3% by weight, styrene 44
ABS resin consisting of wt%. Heat distortion temperature 125 ° C.
【００１４】熱可塑性樹脂４ α─スチレン３３．３重量％、エチレン−プロピンゴム
２０重量％、アクリロニトリル２４重量％、スチレン２
２．７重量％からなるＡＢＳ系樹脂。熱変形温度１１０
℃。Thermoplastic resin 4 α-styrene 33.3% by weight, ethylene-propyne rubber 20% by weight, acrylonitrile 24% by weight, styrene 2
ABS resin consisting of 2.7% by weight. Heat distortion temperature 110
° C.
【００１５】熱可塑性樹脂５ ポリフェニレンエーテル４０重量％、ゴム強化ポリスチ
レン６０重量％からなる変性ポリエニレンエーテル樹
脂。熱変形温度１２３℃。Thermoplastic resin 5 A modified polyenylene ether resin comprising 40% by weight of polyphenylene ether and 60% by weight of rubber-reinforced polystyrene. Heat distortion temperature 123 ° C.
【００１６】（ロ）上記熱可塑性樹脂１〜５の製造 熱可塑性樹脂１ 共重合体（Ａ）：攪拌機つき重合機に水２５０重量部、
アルキルベンゼンスルホン酸ナトリウム２重量部を仕込
み窒素置換後７０℃に昇温し、過硫酸カリウム０．２重
量部を添加し、α─メチルスチレン５０重量部、アクリ
ロニトリル３０重量部、スチレン２０重量部、ｔ−ドデ
シルメルカプタン０．３重量部からなる単量体混合物を
重合温度７０℃で連続的に７時間かけて滴下して滴下終
了後、重合温度を７５℃にして１時間攪拌を続け重合を
終了させた。重合転化率は９８．５重量％、極限糖度は
０．６５dl/g（ＤＭＦ溶液、３０℃、以下同じ）であっ
た。(B) Production of the above-mentioned thermoplastic resins 1 to 5 Thermoplastic resin 1 Copolymer (A): 250 parts by weight of water in a polymerization machine equipped with a stirrer,
After charging 2 parts by weight of sodium alkylbenzene sulfonate and purging with nitrogen, the temperature was raised to 70 ° C., 0.2 parts by weight of potassium persulfate was added, 50 parts by weight of α-methylstyrene, 30 parts by weight of acrylonitrile, 20 parts by weight of styrene, t -A monomer mixture consisting of 0.3 parts by weight of dodecyl mercaptan was continuously added dropwise at a polymerization temperature of 70 ° C over 7 hours, and after the dropping was completed, the polymerization temperature was set to 75 ° C and stirring was continued for 1 hour to complete the polymerization. It was The polymerization conversion rate was 98.5% by weight, and the limiting sugar content was 0.65 dl / g (DMF solution, 30 ° C., hereinafter the same).
【００１７】グラフト共重合体（Ｂ）：攪拌機つき重合
機に水２８０重量部、重量平均粒子径０．３０μｍのポ
リブタジエンラテックス（固形分）６０重量部を仕込
み、窒素置換後７０℃に昇温し、過硫酸カリウム０．１
重量部を添加し、アクリロニトリル１２重量部、スチレ
ン２８重量部からなる単量体混合物を重合温度７０℃で
５時間かけて連続的に滴下し、滴下終了後温度７０℃で
１時間攪拌を続け重合を終了させた。重合転化率は９８
重量％、グラフト率は４０重量％であった。Graft copolymer (B): A polymerization machine equipped with a stirrer was charged with 280 parts by weight of water and 60 parts by weight of polybutadiene latex (solid content) having a weight average particle size of 0.30 μm. , Potassium persulfate 0.1
1 part by weight, and 12 parts by weight of acrylonitrile and 28 parts by weight of styrene were continuously added dropwise at a polymerization temperature of 70 ° C. over 5 hours. After completion of the addition, stirring was continued at a temperature of 70 ° C. for 1 hour to perform polymerization. Ended. Polymerization conversion rate is 98
The weight percentage and the graft ratio were 40 wt%.
【００１８】上記共重合体（Ａ）と共重合体（Ｂ）を
２：１（重量比、固形分）ラテックス状で混合し、この
固形分１００重量部に対し、フェノール系酸化防止剤
（旭電化株式会社 ＡＯ−５０）０．３重量部を添加
し、塩化カルシウムで塩析し、洗浄、炉過、乾燥しパウ
ダーを得た。得られたパウダーをベント付押出し機を用
いてペレット化した。熱変形温度は１１０℃であった。The above copolymer (A) and copolymer (B) were mixed in the form of a latex of 2: 1 (weight ratio, solid content), and 100 parts by weight of this solid content was mixed with a phenolic antioxidant (Asahi). Denka Co., Ltd. AO-50) 0.3 parts by weight was added, salting out with calcium chloride, washing, filtration, and drying to obtain a powder. The obtained powder was pelletized using an extruder with a vent. The heat distortion temperature was 110 ° C.
【００１９】熱可塑性樹脂２ 前記熱可塑性樹脂１において、フェノール系酸化防止剤
をホスファイト系酸化防止剤（旭電化株式会社 ＰＥＰ
８）１重量部に変更した以外は前記熱可塑性樹脂１と同
様にして熱可塑性樹脂２のパウダーを得、ペレット化し
た。熱変形温度は１０７℃であった。Thermoplastic Resin 2 In the above-mentioned thermoplastic resin 1, a phenol-based antioxidant is used as a phosphite-based antioxidant (PEP, Asahi Denka Co., Ltd.
8) A powder of the thermoplastic resin 2 was obtained and pelletized in the same manner as the thermoplastic resin 1 except that the amount was changed to 1 part by weight. The heat distortion temperature was 107 ° C.
【００２０】熱可塑性樹脂３ 前記熱可塑性樹脂１の共重合体（Ａ）の単量体混合物を
フェニルマレイミド２０重量部、アクリロニトリル２０
重量部、スチレン６０重量部に変更した以外は熱可塑性
樹脂１と同様にして熱可塑性樹脂３のパウダーを得、ペ
レット化した。共重合体（Ａ）の重合転化率は９９重量
％、極限粘度は０．６３dl/g、熱変形温度は１２５℃で
あった。Thermoplastic resin 3 20 parts by weight of phenylmaleimide and 20 parts of acrylonitrile are added to the monomer mixture of the copolymer (A) of the thermoplastic resin 1.
A powder of the thermoplastic resin 3 was obtained and pelletized in the same manner as the thermoplastic resin 1 except that the weight part and 60 parts by weight of styrene were changed. The polymerization conversion of the copolymer (A) was 99% by weight, the intrinsic viscosity was 0.63 dl / g, and the heat distortion temperature was 125 ° C.
【００２１】熱可塑性樹脂４ グラフト共重合体（Ｂ）のポリブタジエンラテックスを
重量平均粒子径０．５μｍのエチレン−プロピレンゴム
ラテックスに変更した以外は前記熱可塑性樹脂１と同様
にして熱可塑性樹脂４のパウダーを得、ペレット化し
た。グラフト共重合体（Ｂ）の重合転化率は９９重量
％、グラフト率は３８重量％であった。Thermoplastic resin 4 A thermoplastic resin 4 was prepared in the same manner as the thermoplastic resin 1 except that the polybutadiene latex of the graft copolymer (B) was changed to an ethylene-propylene rubber latex having a weight average particle diameter of 0.5 μm. A powder was obtained and pelletized. The polymerization conversion rate of the graft copolymer (B) was 99% by weight, and the graft rate was 38% by weight.
【００２２】熱可塑性樹脂５ 旭化成株式会社製ザイロンＳＯ−７００（商品名）を用
いた。Thermoplastic resin 5 Zylon SO-700 (trade name) manufactured by Asahi Kasei Corporation was used.
【００２３】（ハ）ブロー成形 （１）ブロー成形機：株式会社プラコー製：ＤＡ−５０
型ブロー成形機 （２）ブロー成形条件：射出速度（指数）：１５０ スクリュー回転数：６０rpm 冷却時間：１００秒 （３）ブロー成形方法：上記熱可塑性樹脂１〜５を用
い、パリソン温度約２５５℃で、テフロン８重量％、ニ
ッケル８３重量％、燐９重量％からなる組成で厚さ１０
μｍのメッキ層を溶融樹脂と接する面に施したダイリッ
プ及びノズルリップ、Ｓ４５Ｃ製ダイリップ及びノズル
リップ、及び厚さ２０μｍの硬質クロムメッキ層を溶融
樹脂と接する面に施したダイリップ及びノズルリップを
それぞれ上記ブロー成形機に装着したブロー成形機を用
いて成形し、外径７０mm、平均肉厚３．２mm、長さ約４
００mmの円筒状の成形品を得た。(C) Blow molding (1) Blow molding machine: manufactured by Placo Co., Ltd .: DA-50
Mold blow molding machine (2) Blow molding conditions: Injection speed (index): 150 Screw rotation speed: 60 rpm Cooling time: 100 seconds (3) Blow molding method: Using the above thermoplastic resins 1 to 5, parison temperature of about 255 ° C. And a composition of 8% by weight of Teflon, 83% by weight of nickel, and 9% by weight of phosphorus and a thickness of 10
The above-mentioned die lip and nozzle lip having a plated layer of μm in contact with the molten resin, S45C die lip and nozzle lip, and die lip and nozzle lip having a hard chrome plated layer having a thickness of 20 μm in contact with the molten resin are respectively described above. Molded using a blow molding machine attached to the blow molding machine, outer diameter 70 mm, average wall thickness 3.2 mm, length about 4
A 00 mm cylindrical molded product was obtained.
【００２４】得られた成形品の落錘強度と成形品外観を
下記の方法により測定・観察した。結果を表１に示す。 落錘強度：−３０℃での半数破壊高さ（ｍ）×錘の重量
（Kg） 成形品外観：成形品を目視で観察し、下記の基準により
評価した。 〇：焼け、異物等の不良が殆ど観察されず、且つ表面が
均一。 ×：焼け、異物等の不良が観察されたか、又は表面が不
均一。The drop weight strength and the appearance of the obtained molded product were measured and observed by the following methods. The results are shown in Table 1. Drop weight strength: Half fracture height at -30 ° C (m) x weight weight (Kg) Appearance of molded product: The molded product was visually observed and evaluated according to the following criteria. ◯: Almost no defects such as burning and foreign matter were observed, and the surface was uniform. X: Defects such as burning and foreign matter were observed, or the surface was uneven.
【００２５】[0025]
【表１】 [Table 1]
【００２６】註：＊は該印を付した熱可塑性樹脂及びダ
イリップ、ノズルリップ等をそれぞれ「使用した」こと
を意味する。Note: * means that the marked thermoplastic resin, die lip, nozzle lip and the like are “used” respectively.
【００２７】表１の結果から明らかなように、テフロン
含有ニッケルメッキ層を設けたダイリップ及びノズルリ
ップを用いた成形機を用いてブロー成形することによ
り、落錘強度及び外観に優れた成形品を得ることができ
る。As is clear from the results shown in Table 1, blow molding was performed using a molding machine using a die lip and a nozzle lip provided with a Teflon-containing nickel plating layer to obtain a molded article excellent in drop weight strength and appearance. Obtainable.
【００２８】[0028]
【発明の効果】叙上のとおり、本発明によれば、パリソ
ン又はシート押出時の剪断発熱が低下し、機械的強度及
び外観に優れたブロー成形品が得られる。INDUSTRIAL APPLICABILITY As described above, according to the present invention, the heat generation by shearing during the extrusion of the parison or the sheet is reduced, and a blow-molded article excellent in mechanical strength and appearance can be obtained.
【図１】本発明のブロー成形機の要部断面図である。FIG. 1 is a sectional view of an essential part of a blow molding machine of the present invention.
１ ダイリップ ２ ノズルリッ
プ ３ テフロン含有ニッケルメッキ層 ４ 溶融樹脂 ５ ノズル ６ マンドレル ７ プランジャー ８ ダイホルダ
ー ９ パリソン1 Die Lip 2 Nozzle Lip 3 Nickel Plated Layer Containing Teflon 4 Molten Resin 5 Nozzle 6 Mandrel 7 Plunger 8 Die Holder 9 Parison
Claims (6)
ルリップの溶融樹脂と接する表面にテフロン含有ニッケ
ルメッキ層を設けたことを特徴とするブロー成形機。1. A blow molding machine, characterized in that a Teflon-containing nickel plating layer is provided on the surface of the die lip and / or the nozzle lip of the extruder in contact with the molten resin.
が、テフロン２〜２０重量％、ニッケル７５〜９５重量
％、燐２〜２０重量％である請求項１記載のブロー成形
機。2. The blow molding machine according to claim 1, wherein the composition of the Teflon-containing nickel plating layer is 2 to 20% by weight of Teflon, 75 to 95% by weight of nickel, and 2 to 20% by weight of phosphorus.
用い、熱可塑性樹脂を成形することを特徴とするブロー
成形法。3. A blow molding method, which comprises molding a thermoplastic resin using the blow molding machine according to claim 1.
上に達する請求項３記載のブロー成形法。4. The blow molding method according to claim 3, wherein the temperature of the parison or the sheet reaches 200 ° C. or higher.
（ＡＳＴＭ Ｄ−６４８−５６，４．６kg/cm2荷重）で
ある請求項３又は４記載のブロー成形法。5. The blow molding method according to claim 3, wherein the thermoplastic resin has a heat distortion temperature of 90 ° C. or higher (ASTM D-648-56, 4.6 kg / cm 2 load).
求項３〜５記載のブロー成形法。6. The blow molding method according to claim 3, wherein the thermoplastic resin is a styrene resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6204588A JPH0847963A (en) | 1994-08-04 | 1994-08-04 | Blow molding machine and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6204588A JPH0847963A (en) | 1994-08-04 | 1994-08-04 | Blow molding machine and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0847963A true JPH0847963A (en) | 1996-02-20 |
Family
ID=16492956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6204588A Withdrawn JPH0847963A (en) | 1994-08-04 | 1994-08-04 | Blow molding machine and method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0847963A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1574317A2 (en) * | 2004-03-11 | 2005-09-14 | Cincinnati Extrusion GmbH | Device for extruding plastic profiles |
| WO2008153718A1 (en) * | 2007-05-29 | 2008-12-18 | Cdi Seals, Inc. | One-piece blow-molded container with rigid fitment |
| EP2546044A1 (en) * | 2011-07-13 | 2013-01-16 | Wavin B.V. | Pipe extrusion device and method for extruding plastic pipes |
| WO2014127958A1 (en) * | 2013-02-21 | 2014-08-28 | Battenfeld-Cincinnati Germany Gmbh | Device for producing plastic tubes |
| JP2017502106A (en) * | 2013-11-20 | 2017-01-19 | シャンハイ クムホサニー プラスチックス カンパニー リミテッド | High heat resistant ABS resin composition suitable for blow molding and method for preparing the same |
-
1994
- 1994-08-04 JP JP6204588A patent/JPH0847963A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1574317A2 (en) * | 2004-03-11 | 2005-09-14 | Cincinnati Extrusion GmbH | Device for extruding plastic profiles |
| EP1574317A3 (en) * | 2004-03-11 | 2006-09-06 | Cincinnati Extrusion GmbH | Device for extruding plastic profiles |
| WO2008153718A1 (en) * | 2007-05-29 | 2008-12-18 | Cdi Seals, Inc. | One-piece blow-molded container with rigid fitment |
| EP2546044A1 (en) * | 2011-07-13 | 2013-01-16 | Wavin B.V. | Pipe extrusion device and method for extruding plastic pipes |
| WO2014127958A1 (en) * | 2013-02-21 | 2014-08-28 | Battenfeld-Cincinnati Germany Gmbh | Device for producing plastic tubes |
| CN105163924A (en) * | 2013-02-21 | 2015-12-16 | 巴顿菲尔-辛辛那提德国有限公司 | Device for producing plastic tubes |
| US9969114B2 (en) | 2013-02-21 | 2018-05-15 | Battenfeld-Cincinnati Germany Gmbh | Device for producing plastic tubes |
| JP2017502106A (en) * | 2013-11-20 | 2017-01-19 | シャンハイ クムホサニー プラスチックス カンパニー リミテッド | High heat resistant ABS resin composition suitable for blow molding and method for preparing the same |
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