CN103496142A - 一种新型氟塑料管挤出模具 - Google Patents

一种新型氟塑料管挤出模具 Download PDF

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Publication number
CN103496142A
CN103496142A CN201310452012.3A CN201310452012A CN103496142A CN 103496142 A CN103496142 A CN 103496142A CN 201310452012 A CN201310452012 A CN 201310452012A CN 103496142 A CN103496142 A CN 103496142A
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CN
China
Prior art keywords
mold
fluorine plastic
plastic pipe
formpiston
conical
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Pending
Application number
CN201310452012.3A
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English (en)
Inventor
王凯
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Tianjin Delta Science and Technology Group Co Ltd
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Tianjin Delta Science and Technology Group Co Ltd
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Publication date
Application filed by Tianjin Delta Science and Technology Group Co Ltd filed Critical Tianjin Delta Science and Technology Group Co Ltd
Priority to CN201310452012.3A priority Critical patent/CN103496142A/zh
Publication of CN103496142A publication Critical patent/CN103496142A/zh
Pending legal-status Critical Current

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    • 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
    • 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
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

本发明提供一种新型氟塑料管挤出模具，包括阴模和阳模，所述阳模呈圆台状，内部有一锥形腔；所述阴模包括锥形体和锥形体尾端的带有螺纹的连接端，所述阴模的锥形体外壁和阳模的锥形腔相匹配；所述阳模的锥形腔与阴模的锥形体外壁之间的压缩角度在10度至12度之间；所述阴模和阳模的材质为镍基合金钢。本发明具有的优点和积极效果是：上述阴模和阳模结构，实现保证氟塑料管壁厚均匀的效果，镍基合金钢材质保证了氟塑料管的外观质量，挤出氟塑料管成品性能优越，模具使用寿命长，耐损性强，抗热冲击性高。

Description

一种新型氟塑料管挤出模具
技术领域
本发明属于挤出模具技术领域，尤其是涉及一种新型氟塑料管挤出模具。
背景技术
氟塑料管是使用材料为TEFLON（FEP）热塑材料，利用挤出机将材料熔融通过专用模具挤出定径从而制得成品，成型模具是决定氟塑料管产品质量的关键。
在现有技术中，挤出模具加工的管材壁厚存在参差不齐的问题，严重影响其性能；还有现有氟塑料管材加工模具材质主要为（1Cr18Ni9Ti）不锈钢，氟塑料生产加工温度可达到420℃，在高于370℃的环境下生产氟塑料系列产品，材料对不锈钢的腐蚀严重程度随着温度的升高也急速增加。达到420℃时氟塑料对不锈钢产生严重的腐蚀，形成氧化铁等杂质，制得的管材纵向纹理严重，并带有黑点等杂质，严重影响产品外观质量。
发明内容
本发明要解决的问题是提供一种新型氟塑料管挤出模具。
为解决上述技术问题，本发明采用的技术方案是：
一种新型氟塑料管挤出模具，包括阴模和阳模，所述阳模呈圆台状，内部有一锥形腔；所述阴模包括锥形体和锥形体尾端的带有螺纹的连接端，所述阴模的锥形体外壁和阳模的锥形腔相匹配；所述阳模的锥形腔与阴模的锥形体外壁之间的压缩角度在10度至12度之间；所述阴模和阳模的材质为镍基合金钢。
优选的，所述阳模的锥形腔与阴模的锥形体外壁之间的压缩角度在10度
本发明具有的优点和积极效果是：上述阴模和阳模结构，实现保证氟塑料管壁厚均匀的效果，镍基合金钢材质保证了氟塑料管的外观质量，挤出氟塑料管成品性能优越，模具使用寿命长，耐损性强，抗热冲击性高。
附图说明
图1是本发明的阴模结构示意图；
图2是本发明的阳模结构示意图。
图中：
1、阴模     2、阳模     3、连接端
具体实施方式
如图1、2所示，本发明的新型氟塑料管挤出模具，包括阴模1和阳模2，所述阳模2呈圆台状，内部有一锥形腔；所述阴模1包括锥形体和锥形体尾端的带有螺纹的连接端，所述阴模1的锥形体外壁和阳模2的锥形腔相匹配；所述阴模1和阳模2的材质为镍基合金钢。
所述阳模2的锥形腔与阴模1的锥形体外壁之间的压缩角度在10度至12度之间，优选10度。
本实例的工作过程：原料进入挤出机，挤出机将材料熔融通过阴模1和阳模2挤出定径从而制得成品。
以上对本发明的一个实施例进行了详细说明，但所述内容仅为本发明的较佳实施例，不能被认为用于限定本发明的实施范围。凡依本发明申请范围所作的均等变化与改进等，均应仍归属于本发明的专利涵盖范围之内。

Claims (2)

1.一种新型氟塑料管挤出模具，包括阴模和阳模，其特征在于：所述阳模呈圆台状，内部有一锥形腔；所述阴模包括锥形体和锥形体尾端的带有螺纹的连接端，所述阴模的锥形体外壁和阳模的锥形腔相匹配；所述阳模的锥形腔与阴模的锥形体外壁之间的压缩角度在10度至12度之间；所述阴模和阳模的材质为镍基合金钢。
2.根据权利要求1所述的新型氟塑料管挤出模具，其特征在于：所述阳模的锥形腔与阴模的锥形体外壁之间的压缩角度在10度。
CN201310452012.3A 2013-09-26 2013-09-26 一种新型氟塑料管挤出模具 Pending CN103496142A (zh)

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CN201310452012.3A CN103496142A (zh) 2013-09-26 2013-09-26 一种新型氟塑料管挤出模具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310452012.3A CN103496142A (zh) 2013-09-26 2013-09-26 一种新型氟塑料管挤出模具

Publications (1)

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CN103496142A true CN103496142A (zh) 2014-01-08

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Country Status (1)

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Application publication date: 20140108