TW592949B - Conductive-resin-coated steel pipe and method of extrusion-forming same - Google Patents

Conductive-resin-coated steel pipe and method of extrusion-forming same Download PDF

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Publication number
TW592949B
TW592949B TW91104244A TW91104244A TW592949B TW 592949 B TW592949 B TW 592949B TW 91104244 A TW91104244 A TW 91104244A TW 91104244 A TW91104244 A TW 91104244A TW 592949 B TW592949 B TW 592949B
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TW
Taiwan
Prior art keywords
resin
steel pipe
conductive
conductive resin
coated steel
Prior art date
Application number
TW91104244A
Other languages
English (en)
Inventor
Shuji Yoshino
Original Assignee
Yazaki Ind Chem Co Ltd
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Publication of TW592949B publication Critical patent/TW592949B/zh

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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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/22—Articles comprising two or more components, e.g. co-extruded layers the components being layers with means connecting the layers, e.g. tie layers or undercuts
    • 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
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • 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
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S138/00—Pipes and tubular conduits
    • Y10S138/07—Resins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
    • Y10T428/1359—Three or more layers [continuous layer]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y10T428/1393—Multilayer [continuous layer]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24174—Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24537—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

592949 五、發明說明（1) 發明背景 之技ίϊ:是屬於導電性樹脂被覆鋼管及其擠壓成形方法 ^相關零件的流動架或者是.驅動輸J 骨=用的？電性樹脂被覆鋼管及其構成 動# i£ $ S = t f移動弱電相關零件等的流動架或者是驅 動輸达機#構造物之構成骨材上，為了 外徑口為26〜30mra程度之薄壁鋼管外周面上，被覆上月厚電度為 :作私成度添加有碳黑（ad011 BlaCk)之導電性合成樹月；: 使：成外徑為28〜32mm程度之導電性樹脂被覆鋼管後加以 立單””^導電性樹脂被覆鋼管中使用了碳黑故 ’又’外觀為黑色有損其美觀性同時也會 石反素附著於其所接觸物體上的問題點。 因此如本專利申請人在實公平8_5796號公報中所開示 述薄壁鋼管之外周面上被覆上厚度為程 ί ϊ=Λ上合成樹脂’同時沿著該樹脂被覆鋼 管之管軸方向以一體成形出添加有碳黑之帶狀導電性合 樹脂的方式來形成導電性樹脂被覆鋼管。 使用此導電性樹脂被覆鋼管時，可以減少前述碳黑之 使用量而對降低製造單價有所貢獻。 但是在採用前述實公平8-5796號公報中所開示的導電 性樹脂被覆鋼管時’雖然在成本面及美觀上具有公認=之 改善效果’但是仍然會露出添加著前述碳黑之帶狀導電性 2063-4689-PF(Ν);ahdd ub.p t d 第6頁 592949 五、發明說明（2) 合成樹脂。因此 觸物體上的問題 之位置而產生新 近年來具有 注目。但是由於 故市面上並未能 是在導電性樹脂 本發明之目 壓成形方法，使 造單價之降低， 發明之概述 本發明相關 外周面上被覆聚 (Polypropylene 周面上利用混合 之導電樹脂，沿 數個具有能發揮 讓其整個外周面 剖面之二層被覆 前述薄壁鋼 度較寬之層狀部 樹脂，交互的而 樹脂的外周面上 仍然^法改善該露出部分會附著於其所接 點’ s連接接地線時必需要注意導電部分 的作業效率降低問題。 優異耐衝擊性·的填充材（F丨1 1 ^『纖維）受到 此種，充^和前述碳黑一樣是高價產品， 見到混合著該填充材之樹脂被覆鋼管尤盆 被覆鋼管上。 Μ 的是提供一種導電性樹脂被覆鋼管及其擠 用填充材來代替前述之碳黑不但能達成製 也能進一步提昇其美觀性。 之導電性樹脂被覆鋼管是在其薄壁鋼管之 乙稀（P〇lyethylene)、ABS、AAS、聚丙烯 —專之再生樹脂，再於前述被覆樹脂之外 =，充材的聚乙烯、ABS、AAS、聚丙烯等 著管體之圓周方向設置至少1處以上的複 其f電性所必要肉厚及寬度之部分，而且 被薄薄的被覆成具有沿著管軸方向呈均等 構造。 二具有圓形剖面，並將具有厚度較薄而寬 y刀及厚度較厚而寬度較窄之層狀部分導電 且以彼此間成等分割之形狀來被覆於再生 〇
592949 五、發明說明（3) 内厚：少Vf發Λ前述導電性樹脂之導電性，所必要之 肉厚程度、寬度至少 要之 脂。又’别述導電性樹脂是使用添加有染色劑之有色樹 又，以擠壓成形方式將 再生樹脂被覆在薄壁鋼管外:、S、AAS、聚丙烯等 之外周面上，用混合著填充卜=;:於前述被覆樹脂 丙烯等之導電樹脂，在沿乙稀、ABS、AAS、聚 位置上設置具有能發揮其導‘：周：向之1處以上複數 分，同時形成整個外周面被肉厚及寬度的部 向呈均等刮面之二層被覆構造/。的被覆成具有沿著管軸方 在本發明中由於儘吾 高價的混合著填充材之導電性二二2低2再生樹脂，並將 電性所需的最少量，故在老旦二曰4用里限制在能產生導 源之同時’能夠達成製造效利用廢棄資 時用。 早饧之降低。當然可以作為接地 又’由於其中混合菩吉、 之顧慮。 、材故沒有因脫色而造成污染 還有，因為是以添加綠色 主 作成所需的色彩，不但β —汽 耆色刮之方式來 色彩，也可以配合作^ = _早一色來增加美觀、作出明亮 1卞菜每境而選擇相襯之色彩。 發明之實施形態及實施例 圖1之A、Β顯示了由▲主击 申印專利範圍第1項中所記載導電性 2063-4689-PF(N);ahddub.ptd 第8頁 592949 五、發明說明（4) 樹脂被覆鋼管之實施形態。此導電性樹脂被覆鋼管〗是適 用於例如作為收容或移動弱電相關零件的流動架或者是驅 動輸送機等，造物之構成骨材。此導電性樹脂被覆鋼管工 是立足在儘置使用多量的低價再生樹脂，並在儘量抑制混 合有填充材之高價導電性樹脂使用量下仍能充分發揮其 電性之技術性考量上。 、守 、此導電性樹脂被覆鋼管1是先在薄壁鋼管2之外周 被覆聚乙；^、ABS、AAS、聚丙稀等再生樹脂3，再 被覆樹脂(再生樹脂3)之外周面上，將混合著填充材二 乙稀、ABS、AAS、聚丙稀等導電樹脂4，分別順著 $ 向形成連續帶狀具有能發揮其導電性所必要肉厚及寬产方
^ U 之场合是在沿著管體圓周方向之12等分V ，置者12處，同時構成整個外周面具有沿 丄 4剖面之薄肉二層被覆構造（申 向句 之發明）。 、甲。月專利粑圍第1項中所記載 取#又^述再生樹脂3除了是如上所述以外也可以传用 聚本乙烯或聚曱基丙烯樹脂材 用 之導電性樹脂4也不受限於上似方式進行1前述 在圖1之例+中是纟沿著管圓 設置12個前述之導電性部分扑，讯0之/刀位置上 部分4b之理由是為了在使用時可;“ 2數個導電性 為接地用之導電性部分扑位置， j別的去注意作 或驅動用輸送機等之構造體。換_ I、2思的建構流動架 地用之構造體時雖然是以作成、^古為了建構可作為接 成至少具有1個沿著管軸方向 $ 9頁 2063-4689-PF(N)；ahddub.ptd 592949 五、發明說明（5) 之連續狀導電性部分4 b即可’但如此的話在建構構造體時 就不付不考慮到邊1個導電性部分4 b之所在位置。 前述之導電性樹脂4是在前述再生樹脂3之外周面上被 覆厚度較薄而寬度較寬之層狀部分4a及厚度較厚而寬度較 窄之層狀部分（即導電性部分）4b。因此，前述再生樹 必然是被覆成具有厚度較厚寬度較寬之層狀部分3a及厚度 較溥而見度較乍之層狀部分3 b。如圖1所示之導電性樹脂 被覆鋼管1具有圓形剖面的薄壁鋼管2，沿著前述再生樹"脂 3之外周面上將導電性樹脂4，以分割成12等分方式（等分曰 割）交互的被覆著厚度較薄而寬度較寬之層狀部分“及厚 度較厚而寬度較窄之層狀部分（即導電性部分）4b(申浐 利範圍第2項中所記載之發明）。當然、#割方式並不限 為1 2等分割。 具體而言，在圖1之例子中前述薄壁鋼管2是採用肉 約為1mm弱、外徑為26，龍大小程度之鋼管。而在前述' 電性樹脂4中厚度薄而寬度較寬之層狀部分 〇. 2 m ra程度，厚度較厚而寬度較窄之層狀部分（心為 分Mb是作成厚度約為。.7_程度，並電
(申厂請專利範圍第3項中所記載之發明）。而前述；= 上厚度較厚而寬度較寬之層狀部分 ：n 度’厚度較薄而寬度較窄之層狀部分二= "^ - - ^ ^ ^"" 還有，在又前、11有圓形剖面之導電性樹脂被覆鋼管1。 逻有在j述之導電性樹脂被覆鋼管1中，前述導電
五、發明說明（6) 性樹脂4县I、；、& 色樹脂(申=牙黃色等染色劑之方式來作成彩 故，Γ專利祀圍第4項中所記載之發明）。 於儘量使之！電性樹脂被覆鋼管1的話，⑴由 封之道φ 里的低價再生樹脂3，並將混合著高價填充 少量，ϊΐί月曰旨\的使用量限制在能產生導電性戶斤需的最 夠、棄#制、w里環境保護及有效利用廢棄資源之同時，能 由於π :ί單價之降低。當然也可以作為接地使用。（2)
;二σ著填充材故不會產生因脫色而造成污染之顧慮。 由於以添加綠色或牙黃色等染色劑之方式所 ;色彩’不但能以單一色來增加美觀、作出明亮色；，斤： 以配合作業環境而選擇相襯之色彩。 接下來’利用申請專利範圍第5項中所記載之本發明 二I導電性樹脂被覆鋼管的擠壓成形實施形態，針對要製 、八有★上述構成之導電性樹脂被覆鋼管，根據圖2來加 以說明。
圖2及圖3顯示了為進行上述之擠壓成形方法時' 所使用 的直父型模具型式之擠壓成形機。圖2中之符號丨〇所示為 擠壓成形機主體部分之直交型模具中管口模之構造。其基 本構造是和本專利申請人既有已取得之專利第2867244號 公報上所記載的擠壓成形機約略相同。 也就是說，此擠壓成形機是利用分配板1 2將分配頭1 4 及内層樹脂管口模1 5配置在位於圖中所未顯示之直交型模 具則端之接合座11的前方側上，再利用分配板丨3來配置位 於其前方的放射狀分配頭1 6及外層樹脂管口模1 7，該分配
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五、發明說明（7) 板12、13是相互接觸而被固定在一起。在前述分配 1 3銜接線之上部連接著與加熱用筒型汽缸相連 2〇，從橫置型模具中供應的再生樹脂3是在内層樹月口 模15處與薄壁鋼管2接著並被覆於其外周面上:“; 口模1 7處被覆於刖述再生樹脂3之外周面上。 士從前述連結座20到前述外層樹脂管口模17間的導電性 树月曰4之流路，是在以薄壁鋼管2為中心的較大半圓形第1 流路1 8之兩處分岐端上，朝向内側再連接至具有較小外徑 的第2流路19、19上。在前述之第2流路19、19上為了能均 句的朝向中心進行擠壓而將流路丨9、19彼此間作成收^狀 之連接部形態。 從前述之第2流路19、19中可連接至形成於放射狀分 配頭1 6上之放射狀流路，外層樹脂管口模丨7上之放射狀流 路17a及通孔17b中（參照圖5)。 匕
前述内層樹脂管口模1 5是如圖4 A、B所示，在作為被 覆再生樹脂3用的通孔1 5a上，以作出形成薄肉部所需之 2mm寬的突條及〇· 7mm程度的肉厚部方式，在沿著其管軸方 向分別作出12等分之溝15b。 外層樹脂管口模1 7是如圖5 A、B所示，為了在前述再 生樹脂3上被覆導電性樹脂4 ’在位於内層樹脂管口模1 5上 形成薄肉部之突條位置處，配置著具有約略相同寬度之放 射狀流路1 7 a及用來形成導電性樹脂被覆鋼管1外徑的通孔 17b。
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田利用上述之成形機來擠壓成形作出導電性樹脂被覆 鋼管1時首先讓薄壁鋼管從圖中未顯示之直交型模具中 朝右方則進’利用經由接合座11、分配頭1 4、内層樹脂管 口模1 5而供給之再生樹脂3予以接著被覆。 接下束’當則述薄壁鋼管2來到外層樹脂管口模1 7位 置處時、導電性樹脂4就從連接頭2 〇經過第1流路丨8及第2 流路1 9而通到放射狀分配頭丨6中，再經由前述内層樹脂管 口模1 5與外層樹脂管口模1 7間之間隙及流路1 7a而被供給 至通孔17b内，並被覆於前述再生樹脂3之外周面上。
也就疋說’如圖1所示前述再生樹脂3及導電性樹脂 i ’是以擠壓成形方式而被分別被覆成丨2等分割之厚肉部 及薄肉部，並形成讓其整體外徑具有沿著管軸方向均等剖 面之二層被覆構造。 ^ 以上雖然是根據圖式來對實施形態加以說明，但本發 明並不受限於此圖示例之實施形態，只要在不逾越其技術 性思維之範圍内，嚴謹的說也包括業者通常所進行^設計 變更、應用上之改形的範圍。
2063-4689-PF(N);ahddub.ptd 第13頁 592949
圖1所不為顯示本發明相關導電 剖面圖、B圖Λ A圓士 > v * 倒 间荷A圖中之X部的放大圖。 圖2所示為在直交型模具擠壓成形 面圖。 ％ @被覆鋼管之橫 i主要部分之側 圖3所示為圖2中ΙΙΙ-ΙΠ線之箭頭大^ 圖4中A所示為内層樹脂管口模之正方向剖面圖。 同橫剖面圖。 面視圖，B所示為 圖5中A所示為外層樹脂管口 同橫剖面圖。 模之正面視圖 B所示為 符號說明 1〜導電性樹脂被覆鋼管 3、3a、3b〜再生樹脂； 1 〇〜管口模； 1 2、1 3〜分配板； 1 5〜内層樹脂管口模； 15b〜溝； 1 7〜外層樹脂管口模； 1 7b〜通孔； 1 9〜第2流路； ;2〜薄壁鋼管； 4、4 a、4 b〜導電性樹脂 11〜接合座； 1 4〜分配頭； 1 5 a〜通孔； 1 6〜放射狀分配頭； 17a〜放射狀流路； 1 8〜第1流路； 2 0〜連結座。
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Claims (1)

  1. 592949 _塞號 91104244___%年 > 月f 日__修正本 —___ 六、申請專利乾圍 1 · 一種導電性樹脂被覆鋼管，其特徵在於：在薄壁鋼 管之外周面上被覆著聚乙稀、ABS、AAS、聚丙蝉等再生樹 脂，又在該再生樹脂之外周面上，利用混合著填充材的聚 乙稀、ABS、A AS、聚内烤等之導電性樹脂，在沿著管體圓 周方向之全周複數位置上交互設置著厚度較薄而寬度較寬 之層狀部分與能發揮其導電性之厚度較厚而寬度較窄之層 -狀部勿’以形成沿耆管轴方向呈均等剖面之二層被覆構 造。 2. 如申請專利範圍第1項所述之導電性樹脂被覆鋼 - 管，其中，薄壁鋼管具有圓形剖面，並且導電樹脂在再生 樹脂之外周面上係將等分之具有厚度較薄而寬度較寬之層 _ 狀部分及此發揮導電性之厚度較厚而寬度較窄之層狀部分 複數設置於上述圓形剖面之外周面上。 3. 如申請專利範圍第1項或第2項所述之導電性樹脂被 覆鋼管，其中，能發揮導電性樹脂之導電性之壁厚至少是 0. 5mm程度，寬度至少是2mm程度。 4·如申請專利範圍第1項或第2項所述之導電性樹脂被 覆鋼管，其中，導電性樹脂是添加有染色劑之有色樹脂。 5. —種導電性樹脂被覆鋼管之擠壓成形方法，其特徵 在於：以擠壓成形方式將聚乙烯、ABS、AAS、聚丙烯等再 # 生樹脂先被覆在薄壁鋼管之外周面上，再於該再生樹脂之 外周面上’利用混合著填充材的聚乙烯、abs、Ms、聚丙 烯等之導電樹脂，在沿著管體圓周方向之全周複數位置上-以擠壓成形方式交互設置具有厚度較薄而寬度較寬之層狀_
    592949
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US20040086672A1 (en) 2004-05-06
BR0208279A (pt) 2004-03-23
CA2441008C (en) 2009-06-30
HK1070328A1 (en) 2005-06-17
EP1400346A1 (en) 2004-03-24
WO2002076728A1 (fr) 2002-10-03
CN1537051A (zh) 2004-10-13
DE60209696T2 (de) 2006-09-21
CA2441008A1 (en) 2002-10-03
EP1400346B1 (en) 2006-03-08
EP1400346A4 (en) 2005-01-05
JP3627050B2 (ja) 2005-03-09
JP2002283428A (ja) 2002-10-03
US7105216B2 (en) 2006-09-12
MXPA03008442A (es) 2004-01-29
KR100835668B1 (ko) 2008-06-09
DE60209696D1 (de) 2006-05-04
KR20030085003A (ko) 2003-11-01
CN1331662C (zh) 2007-08-15

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