WO2010078695A1 - 一种氟树脂无缝膜封包边方法 - Google Patents

一种氟树脂无缝膜封包边方法 Download PDF

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Publication number
WO2010078695A1
WO2010078695A1 PCT/CN2009/000029 CN2009000029W WO2010078695A1 WO 2010078695 A1 WO2010078695 A1 WO 2010078695A1 CN 2009000029 W CN2009000029 W CN 2009000029W WO 2010078695 A1 WO2010078695 A1 WO 2010078695A1
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Prior art keywords
fluororesin
ring
seamless
cutting
film encapsulation
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PCT/CN2009/000029
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English (en)
French (fr)
Inventor
薛艳艳
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Xue Yanyan
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Application filed by Xue Yanyan filed Critical Xue Yanyan
Priority to AU2009337027A priority Critical patent/AU2009337027B2/en
Priority to CA2749368A priority patent/CA2749368C/en
Priority to PCT/CN2009/000029 priority patent/WO2010078695A1/zh
Priority to US13/143,927 priority patent/US8480837B2/en
Priority to EP09837253.5A priority patent/EP2382899B1/en
Priority to JP2011544763A priority patent/JP5198666B2/ja
Publication of WO2010078695A1 publication Critical patent/WO2010078695A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A47J36/04—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay the materials being non-metallic
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0026—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor an edge face with strip material, e.g. a panel edge
    • B29C63/0034—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor an edge face with strip material, e.g. a panel edge the strip material being folded
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1064—Partial cutting [e.g., grooving or incising]
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1066—Cutting to shape joining edge surfaces only
    • 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
    • Y10T428/21—Circular sheet or circular blank
    • Y10T428/219—Edge structure

Definitions

  • the invention relates to a seamless film encapsulation method, in particular to a fluororesin seamless film encapsulation method. Background technique
  • the cooking tools used in the culinary industry in Europe and the United States are mostly fluororesin (Teflon) pans and non-stick pans coated with metal products.
  • fluororesin Teflon
  • the non-stick fluororesin coating Teflon
  • kill gas which causes food poisoning, affects people's health, and is burned out.
  • the pot can't be used again to bring waste of resources and environmental impact.
  • it is easier for people to cook foods, such as microwave ovens, toasters, electric ovens, and the like.
  • the fluororesin-coated fabric fabric When the fluororesin-coated fabric fabric is formed into a certain shape, it is first cut, and the cut fluororesin-coated fabric is burred and needs to be edging.
  • the conventional edging process includes the following steps: The fluororesin raw material is made into a strip-shaped fluororesin film, and at the same time, the fluororesin-coated fabric cloth is cut into a desired shape; then, the long fluororesin film is surrounded by the fluorine which is cut into a certain shape. Around the resin-coated fabric cloth, the edges are wrapped, all the burrs are wrapped, and the long fluororesin film is joined end to end. Finally, the fluororesin-coated fabric cloth is obtained by hot pressing and the like.
  • the long strip-shaped fluororesin film must form a joint seam end to end, the edge of the edging is uneven, easy to disengage, the process requirements are high, and the appearance is affected;
  • wrinkles are formed on the edge of the fluororesin-coated fabric. If it is a round fluororesin-coated fabric, there are many wrinkles. These wrinkles waste fluororesin raw materials and affect the appearance of the product. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a fluororesin seamless film encapsulation method with uniform edging force for the above-mentioned state of the art.
  • the first technical solution adopted by the present invention to solve the above technical problem is: a fluororesin seamless film encapsulation method, which comprises the following steps:
  • the second technical solution adopted by the present invention to solve the above technical problem is: a fluororesin seamless film encapsulation method, which comprises the following steps:
  • the fluororesin raw material is placed in a mold, and the cylindrical body is obtained by one of the following methods:
  • the first type holding pressure, demoulding, and finally sintering the molded casting
  • the fluororesin raw material is at least one of polytetrafluoroethylene, polyperfluoroethylene, polypropylene fluoride, and polyvinyl fluoride, and has a molecular weight of 12.000.000 or more and a particle diameter of 15 to 50 mu.
  • the fluororesin material is added with a color percentage of 1 to 5% of a coloring agent, and the coloring agent is required to withstand high temperatures.
  • a fluororesin adhesive film may be filled between the fluororesin-coated base fabric and the ring, and the hot pressing temperature is 200 to 330 ° C at this time. Further, the fluororesin adhesive film may be made of polyvinylidene fluoride or polypropylene fluoride.
  • the hot pressing temperature in the step 4 is 330 to 400 ⁇ , and this method does not need to be filled with the fluororesin adhesive film.
  • the axial thickness of the ring after cutting is 0.1 to 0.3 mm.
  • the nominal pressure of the holding pressure is preferably 200 to 300 kg/cm 2 .
  • the invention has the advantages that: since the fluororesin raw material is made into a desired ring shape in advance, there is no joint seam after the edging, the edging force is uniform, it is difficult to be detached, and the process requirement is low. At the same time, there will be no wrinkles, seamless wrinkles and no joints, the appearance of the product is more beautiful overall, and because there is no wrinkle, the material is reduced, the manufacturing cost is relatively reduced; the overall process is simple, the production efficiency is high, and the quality of the obtained product is relatively stable. . DRAWINGS
  • Fig. 1 is a schematic view showing the structure of a cylindrical body obtained from a fluororesin raw material in Example 1.
  • FIG. 2 is a schematic view showing the structure of the product obtained in Example 1.
  • Figure 3 is an exploded view of the product obtained in Example 1.
  • Figure 4 is a cross-sectional view of the product obtained in Example 1.
  • Figure 5 is an enlarged view of a portion A in Figure 4.
  • Figure 6 is an exploded view of the product obtained in Example 2.
  • Figure 7 is a cross-sectional view of the product obtained in Example 2.
  • Figure 8 is an enlarged view of a portion B in Figure 7. detailed description
  • Embodiment 1 Referring to FIG. 1 to FIG. 5, the fluororesin seamless film encapsulation method in the embodiment includes the following steps:
  • the fluororesin raw material is placed in a mold, and the fluororesin raw material is added with a mass percentage of 1 to 5% coloring agent, and the coloring agent is high temperature resistant and consistent with the color of the fluororesin coated base fabric, and is obtained by one of the following methods.
  • the nominal pressure of holding pressure is 200 ⁇ 300kg/cm 2 ;
  • the obtained cylindrical body 1 is cut into a ring 3, and the axial thickness after the ring 3 is cut is 0.1 to 0.3 mm, and a ring-shaped slit 31 is cut in the inner wall of the ring 3, as shown in Fig. 3;
  • the fluororesin raw material is one of polytetrafluoroethylene (PTFE), polyperfluoroethylene (PFA), polypropylene fluoride (FEP), and polyvinyl fluoride (ETFE), and has a molecular weight of 12.000.000 or more and a particle diameter of 15 ⁇ 50mu.
  • PTFE polytetrafluoroethylene
  • PFA polyperfluoroethylene
  • FEP polypropylene fluoride
  • ETFE polyvinyl fluoride
  • the fluororesin-coated base fabric 2 and the ring 3 may be filled with a fluororesin adhesive film, and the hot pressing temperature is 200 to 330 ° C, and the fluororesin adhesive film is polyfluoroethylene or polypropylene. Vinyl fluoride.
  • Embodiment 2 Referring to FIG. 6, FIG. 7 and FIG. 8, the fluororesin seamless film encapsulation method in the embodiment includes the following steps:
  • the fluororesin raw material is placed in a mold, and the fluororesin raw material is added with a mass percentage of 1 to 5% coloring agent, and the coloring agent is high temperature resistant and conforms to the color of the fluororesin coated base fabric 2, by one of the following methods Obtaining the cylindrical body 1: the first type, holding pressure, demoulding, and finally sintering the molded casting, the nominal pressure of the holding pressure is 200-300 kg/cm 2 ; Second, mechanical injection;
  • the obtained cylindrical body 1 is cut into a ring 3, and the axial thickness after the ring 3 is cut is 0.1 to 0.3 mm, as shown in Fig. 6;
  • hot pressing temperature is 330 ⁇ 400 ° C
  • the fluororesin raw material in the ring 3 is melted to form a gluing, and then a seamless edging fluororesin coated base fabric 4 is obtained.
  • the fluororesin-coated base fabric 2 and the ring 3 may be filled with a fluororesin adhesive film 4 (shown in FIG. 8), and the hot pressing temperature is 200 to 330 ° C, and the fluororesin adheres.
  • the film 4 is made of perfluoroethylene or polypropylene fluoride.
  • the fluororesin raw materials can be specifically made of the following materials: DuPont: PTFE series: 7A, 701N, NXT-75, NXT-85, FEP series: G3, G7, 100, 140, 160, PFA series: 350, 44HP, 940HP, including Fluororubber series and ETFE series.
  • Japan Daikin PTFE: such as M series, MG series: PFA: such as AP series, AC series, AF series, FEP: such as NP series, ND series, NC series, NF series, including fluorine rubber series and ETFE series.
  • PTFE such as M series
  • MG series PFA: such as AP series, AC series, AF series
  • FEP such as NP series, ND series, NC series, NF series, including fluorine rubber series and ETFE series.
  • PTFE such as TF series, TFM series, THV series
  • PFA series such as 6900N
  • FEP series such as 6910.
  • fluororubber series and ETFE series includes fluororubber series and ETFE series.
  • PTFE F series, S series, L series, GL series, CAR series, GR series, BZ series, INOX series, CER series, MOS series.
  • PFA series FEP series and fluororubber series domestic fluororesin (PTFE) raw materials, Sichuan Chenguang CGM-01, CGM-01-B, CGM-021-BJX-1, CGM-021- B JX-ORS, CGM-16F , CGM— 011, CGM— Oil AP, fluororubber series: 1#, 2#, 3#, 4#.
  • Domestic PTFE raw materials include: Shanghai San Aifu, Jiangsu Meilan and Zhejiang Yinzhou Chemical Production.
  • High-temperature resistant pigments Imported by Germany's basf, Degussa, merck, Swiss ciba, American ebonex and other manufacturers Pigments with a temperature of 350 to 400 ° C can be used.
  • the domestic models produced by Nanjing Peimont Technology Co., Ltd. are PY-162, ⁇ -802 Titanium Yellow, PBR-24, BR-602 Titanium Chrome Brown, etc., F-produced by Jiangsu Wujiang Futai Chemical Technology Co., Ltd. 280, Red pigments of 122, 185, 254 produced by Wenzhou Baise De Fine Chemical Co., Ltd.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Cookers (AREA)

Description

一种氟树脂无缝膜封包边方法 技术领域
本发明涉及一种无缝膜封包边方法， 尤其涉及一种氟树脂无缝膜封包边方法。 背景技术
在欧美国家烹饪行业中所用的烹饪工具多为釆用金属制品涂层不沾的氟树脂 (铁氟 龙)平底锅、 不沾锅。 在烹饪食品加热使用天然气或煤气， 非常容易造成锅底受热过高 把不沾的氟树脂涂层 (铁氟龙)烧坏而产生毒气， 造成食物中毒， 影响人们身体健康， 并 且， 被烧坏的锅不能再次使用带来资源浪费和环保的影响。 另一方面， 随着烘烤的家用 电器高速发展， 使人们更方便烹饪食品的加工， 如微波炉， 烤面包炉， 电烤炉等等。 为 了达到更卫生， 更省时间， 更方便清洗， 更美观又耐用的烹饪电器配套使用的目的， 一 种氟树脂涂层织物布应运而生， 这种氟树脂涂层织物布可以用于作烤垫， 烤盘、 烤篮， 因其具有很多优异的性能， 可满足欧美食品安全法的卫生标准， 如美国的 FDA认证， 欧洲联盟的 LFGB认证。
氟树脂涂层织物布做成一定形状时，首先要经过裁切，而裁切后的氟树脂涂层织物 布有毛边， 需要经过包边工艺才能使用， 传统的包边工艺包括如下步骤： 首先， 将氟树 脂原料做成长条状的氟树脂膜， 同时， 将氟树脂涂层织物布裁切为所需形状； 然后， 将 长条状的氟树脂膜围绕在被裁切成一定形状的氟树脂涂层织物布周围， 进行包边， 把所 有毛边都包起来， 长条状的氟树脂膜首尾相接； 最后， 经过热压等工艺， 制得包边的氟 树脂涂层织物布。 上述工艺存在如下不足： 第一， 长条状的氟树脂膜首尾相接必定会形 成一个连接缝， 包边受力不均， 容易脱开， 对工艺要求较高， 而且影响外观； 第二， 包 边过程中势必会在氟树脂涂层织物布边缘形成折皱，如果是圆形氟树脂涂层织物布则有 很多折皱， 这些折皱浪费氟树脂原料， 也影响产品的外观。 发明内容
本发明所要解决的技术问题是针对上述的技术现状而提供一种包边受力均匀的氟 树脂无缝膜封包边方法。
本发明解决上述技术问题所采用的第一个技术方案为：一种氟树脂无缝膜封包边方 法， 其特征在于包括如下步骤：
①将氟树脂原料放入模具中， 经过如下之一的方式获得筒状体： 一 1 - 确认本 第一种， 保压、 脱模， 最后将模压成型的铸件烧结；
第二种， 机械注射；
第三种， 机械硫化；
②将所得的筒状体切削成环， 并且在环的内壁切削一环形夹缝；
③将氟树脂涂层基布裁切为与环相适配的形状， 然后塞入环的夹缝内；
④热压后制得无缝包边的氟树脂涂层基布。
本发明解决上述技术问题所采用的第二个技术方案为：一种氟树脂无缝膜封包边方 法， 其特征在于包括如下步骤：
①将氟树脂原料放入模具中， 经过如下之一的方式获得筒状体：
第一种， 保压、 脱模， 最后将模压成型的铸件烧结；
第二种， 机械注射；
第三种， 机械硫化；
②将所得的筒状体切削成环；
③将氟树脂涂层基布裁切为与环相适配的形状，然后取将裁 后的氟树脂涂层基布 置于叠起来的二个环中间；
④热压后制得无缝包边的氟树脂涂层基布。
所述的氟树脂原料为聚四氟乙烯、聚全氟乙烯、聚丙氟乙烯、聚氟乙烯中的至少一 种， 并且分子量在 12.000.000以上， 粒径为 15~50mu。
使包边与氟树脂涂层基布保持一致的颜色，所述的氟树脂原料中添加有质量百分比 为 1~5%颜色剂， 该颜色剂要求耐高温。
步骤④热压之前在氟树脂涂层基布与环之间可以填充有氟树脂粘着膜，这时的热压 温度为 200~330°C。 进一步， 所述的氟树脂粘着膜可以采用聚全氟乙烯或聚丙氟乙烯。
为使环中的氟树脂原料熔融形成胶粘， 步骤④热压温度为 330~400Ό， 这种方式就 无需填充有氟树脂粘着膜。
作为优选， 切削后所述的环轴向厚度为 0.1~0.3mm。
步骤①中获得筒状体采用烧结方式时， 保压的公称压力优选为 200〜300kg/cm2。 与现有技术相比， 本发明的优点在于： 由于预先将氟树脂原料做成所需环状， 所以 包边后无连接缝， 包边受力均匀， 难于脱开， 对工艺要求较低， 同时， 也不会有折皱产 生， 无缝无折皱无接头， 产品外观比较整体美观， 又由于没有折皱， 所以用料减少， 制 造成本相对降低； 整体工艺简单， 生产效率高， 所得产品质量较为稳定。 附图说明
图 1为实施例 1中由氟树脂原料制得的筒状体的结构示意图。
图 2为实施例 1中所得的产品结构示意图。 图 3为实施例 1中所得的产品分解图。
图 4为实施例 1中所得的产品剖视图。
图 5为图 4中 A部放大图。
图 6为实施例 2中所得产品的分解图。
图 7为实施例 2中所得的产品剖视图。
图 8为图 7中 B部放大图。 具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
实施例 1 : 参考图 1至图 5所示， 本实施例中氟树脂无缝膜封包边方法， 包括如下 步骤：
①将氟树脂原料放入模具中， 氟树脂原料中添加有质量百分比为 1~5%颜色剂， 该 颜色剂为耐高温且与氟树脂涂层基布颜色一致， 经过如下之一的方式获得筒状体 1， 见 图 1所示：
第一种， 保压、 脱模， 最后将模压成型的铸件烧结， 保压的公称压力为 200~300kg/cm2;
第二种， 机械注射；
第三种， 机械硫化；
②将所得的筒状体 1切削成环 3， 环 3切削后的轴向厚度为 0.1~0.3mm， 并且在环 3的内壁切削一环形夹缝 31， 见图 3所示；
③将氟树脂涂层基布 2裁切为与环 3相适配的形状， 然后塞入环的夹缝 31内， 见 图 3所示；
④热压， 热压温度为 330~400Ό， 使环 3中的氟树脂原料熔融形成胶粘， 然后制得 无缝包边的氟树脂涂层基布 4， 见图 2、 图 4和图 5所示。
氟树脂原料为聚四氟乙烯 (PTFE)、 聚全氟乙烯 (PFA)、 聚丙氟乙烯 (FEP)、 聚氟乙烯 (ETFE)中的一种， 并且分子量在 12.000.000以上， 粒径为 15~50mu。
步骤④热压之前在氟树脂涂层基布 2与环 3之间可以填充有氟树脂粘着膜，这时的 热压温度为 200~330°C， 氟树脂粘着膜为聚全氟乙烯或聚丙氟乙烯。
实施例 2: 参考图 6、 图 7和图 8， 本实施例中的氟树脂无缝膜封包边方法， 包括 如下步骤：
①将氟树脂原料放入模具中， 氟树脂原料中添加有质量百分比为 1~5%颜色剂， 该 颜色剂为耐高温且与氟树脂涂层基布 2颜色一致， 经过如下之一的方式获得筒状体 1 : 第一种， 保压、 脱模， 最后将模压成型的铸件烧结， 保压的公称压力为 200~300kg/cm2; 第二种， 机械注射；
第三种， 机械硫化；
②将所得的筒状体 1切削成环 3， 环 3切削后的轴向厚度为 0.1~0.3mm， 见图 6所 示；
③将氟树脂涂层基布 2裁切为与环 3相适配的形状，然后取将裁切后的氟树脂涂层 基布 2置于叠起来的二个环 3中间， 见图 7和图 8所示；
④热压， 热压温度为 330~400°C， 使环 3中的氟树脂原料熔融形成胶粘， 然后制得 无缝包边的氟树脂涂层基布 4。
步骤④热压之前在氟树脂涂层基布 2与环 3之间可以填充有氟树脂粘着膜 4(见图 8 所示)， 这时的热压温度为 200~330°C， 氟树脂粘着膜 4为聚全氟乙烯或聚丙氟乙烯。
氟树脂原料具体可采用如下原料： 美国杜邦： PTFE系列： 7A、 701N、 NXT-75、 NXT-85、 FEP系列： G3、 G7、 100、 140、 160、 PFA系列： 350、 44HP、 940HP、 包括 氟橡胶系列和 ETFE系列。
日本大金： PTFE: 如 M系列、 MG系列： PFA: 如 AP系列、 AC系列、 AF系列、 FEP: 如 NP系列、 ND系列、 NC系列、 NF系列、 包括氟橡胶系列和 ETFE系列。
德国 3M泰良： PTFE: 如 TF系列、 TFM系列、 THV系列、 PFA系列： 如 6900N、 FEP系列： 如 6910。 包括氟橡胶系列和 ETFE系列。
意大利苏威： PTFE: F系列、 S系列、 L系列、 GL系列、 CAR系列、 GR系列、 BZ系列、 INOX系列、 CER系列、 MOS系列。 包括 PFA系列 FEP系列和氟橡胶系列： 国产氟树脂（PTFE)原料，四川晨光 CGM— 01， CGM— 01— B， CGM— 021— BJX-1 , CGM— 021— B JX-ORS , CGM—16F, CGM— 011， CGM— Oil AP, 氟橡胶系列： 1#， 2#, 3#， 4#。
山东东岳 DF-101 , DF-102, DF-16A, DF-17A, DF-16A-1 , FEP系列： DS-602， DS-600, 氟橡胶系列： DS-2601 , DS-2602, DS-2603, DS-2604。
国产的 PTFE原料包括： 上海三爱富、 江苏梅兰和浙江衢州化工生产。
耐高温的颜料剂： 进口的有德国的巴斯夫 (basf) 、 德固萨 (Degussa)、 默克 (merck), 瑞士的汽巴 (ciba)， 美国的艾博斯 (ebonex)等厂家生产的能耐 350~400°C高温的颜料都可 以使用。 国内的有南京培蒙特科技有限公司生产的型号为 PY-162、 ΥΕ-802钛铌黄， 型 号为 PBR-24、 BR-602钛铬棕等， 江苏吴江福泰化工科技有限公司生产的 F-280, 温州 百色得精细化工有限公司生产的型号为 122、 185、 254的红色颜料。

Claims

权 利 要 求
1、 一种氟树脂无缝膜封包边方法， 其特征在于包括如下步骤：
①将氟树脂原料放入模具中， 经过如下之一的方式获得筒状体- 第一种， 保压、 脱模， 最后将模压成型的铸件烧结；
'第二种， 机械注射；
第三种， 机械硫化；
②将所得的筒状体切削成环， 并且在环的内壁切削一环形夹缝；
③将氟树脂涂层基布裁切为与环相适配的形状， 然后塞入环的夹缝内；
④热压后制得无缝包边的氟树脂涂层基布。
2、 一种氟树脂无缝膜封包边方法， 其特征在于包括如下步骤：
①将氟树脂原料放入模具中， 经过如下之一的方式获得筒状体- 第一种， 保压、 脱模， 最后将模压成型的铸件烧结；
第二种， 机械注射；
第三种， 机械硫化；
②将所得的筒状体切削成环；
③将氟树脂涂层基布裁切为与环相适配的形状，然后取将裁切后的氟树脂涂层基布 置于叠起来的二个环中间；
④热压后制得无缝包边的氟树脂涂层基布。
3、 根据权利要求 1或 2所述的氟树脂无缝膜封包边方法， 其特征在所述的氟树脂 原料为聚四氟乙烯、 聚全氟乙烯、 聚丙氟乙烯、 聚氟乙烯中的至少一种， 并且分子量在 12.000.000以上， 粒径为 15~50mu。
4、 根据权利要求 1或 2所述的氟树脂无缝膜封包边方法， 其特征在所述的氟树脂 原料中添加有质量百分比为 1~5%耐高温的颜色剂。
5、 根据权利要求 1或 2所述的氟树脂无缝膜封包边方法， 其特征在于步骤④热压 之前在氟树脂涂层基布与环之间填充有氟树脂粘着膜， 热压温度为 200~330Ό。
6、 根据权利要求 5所述的氟树脂无缝膜封包边方法， 其特征在于所述的氟树脂粘 着膜为聚全氟乙烯或聚丙氟乙烯。
7、 根据权利要求 1或 2所述的氟树脂无缝膜封包边方法， 其特征在于步骤④热压 温度为 330~400°C， 使环中的氟树脂原料熔融形成胶粘。
8、 根据权利要求 1或 2所述的氟树脂无缝膜封包边方法， 其特征在于切削后所述 的环轴向厚度为 0.1~0.3mm。
9、 根据权利要求 1或 2所述的氟树脂无缝膜封包边方法， 其特征在于步骤①中获 得筒状体采用烧结方式时， 保压的公称压力为 200~300kg/cm2。
PCT/CN2009/000029 2009-01-09 2009-01-09 一种氟树脂无缝膜封包边方法 WO2010078695A1 (zh)

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PCT/CN2009/000029 WO2010078695A1 (zh) 2009-01-09 2009-01-09 一种氟树脂无缝膜封包边方法
US13/143,927 US8480837B2 (en) 2009-01-09 2009-01-09 Seamless edge-sealing method of fluorine resin coating
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