CN107351409A - 一种聚四氟乙烯涂层皮带的焊接方法 - Google Patents
一种聚四氟乙烯涂层皮带的焊接方法 Download PDFInfo
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C65/5021—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being multi-layered
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
- B29C66/4722—Fixing strips to surfaces other than edge faces
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
一种聚四氟乙烯涂层皮带焊接工艺,其特征在于:取聚四氟乙烯涂层皮带平铺在平台上两头对接;将焊接膜和高强度纤维基布依次平铺在皮带的搭接缝上中间对齐,打开高温熨斗,温度设定为350‑400℃,使熨斗按压在焊接基布上,保持30‑50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温60‑90s,移开不锈钢铁箱,焊接基布与皮带完成焊接。本发明,接头带来的皮带印明显减轻,且使用寿命明显提高。
Description
技术领域
本发明属于高分子材料技术领域,特别涉及一种聚四氟乙烯涂层皮带的焊接方法。
背景技术
聚四氟乙烯(PTFE)又称铁氟龙或特氟龙(Teflon),与其他高分子材料相比,因其具有卓越的耐热、阻燃、耐腐蚀性以及超低的摩擦系数,工业上常以玻璃纤维、芳纶纤维编织布为基底,以聚四氟乙烯为涂层,制造用于特殊功能的输送皮带。这种输送皮带具有耐磨、耐高温、耐腐蚀、易清洁的功能,长期使用温度达到260℃。
皮带本身根据有没有接缝分为两种,一种为无缝带,一种为普通皮带。无缝皮带为特定尺寸的环状皮带,直接装配在其他设备上使用,不会再产品表面留下接头带来的印痕,在产品表面质量要求高的领域中备受关注,但是与普通皮带相比,其成本高昂,在设备配套安装上也存在很多问题,目前大部分传输皮带都不得不采用带有接头的普通皮带。目前皮带接头材质包含金属的、非金属的,其连接形式有拼接、铰链、对接、重叠等多种形式。但都会在产品表面产生明显的接头印痕。聚四氟乙烯涂层皮带价格昂贵,为了控制成本,皮带使用寿命是行业关注的重点,而聚四氟乙烯涂层皮带损坏,一般都是从最薄弱的位置——皮带接头开始损坏。开发优良的皮带接头方法,不仅需要解决皮带接头印痕的问题,同时必须满足很好的使用寿命,而这个问题也给行业带来了极大挑战。
发明内容
为解决上述问题,本发明提供了一种聚四氟乙烯涂层皮带焊接工艺,是以氟塑料膜为焊接膜,以聚四氟乙烯涂覆的高强度纤维基布为焊接基布,使用高温熨斗对其加热加压一段时间,然后冷却定型,使焊接基布与皮带焊接到一起。
本发明的技术方案是通过以下方式实现的:一种聚四氟乙烯涂层皮带焊接工艺,其特征在于:取聚四氟乙烯涂层皮带平铺在平台上两头对接;将焊接膜和高强度纤维基布依次平铺在皮带的搭接缝上中间对齐,打开高温熨斗,温度设定为350-400℃,使熨斗按压在焊接基布上,保持30-50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温60-90s,移开不锈钢铁箱,焊接基布与皮带完成焊接。
所述的聚四氟乙烯涂层皮带的材质为聚四氟乙烯涂层玻纤布或聚四氟乙烯涂层芳纶布。
所述的焊接膜是氟塑料膜,为乙烯四氟乙烯共聚物、聚全氟乙丙烯或四氟乙烯-全幅烷氧基乙烯基醚共聚物,其厚度为0.06-0.10mm。
所述的高强度纤维基布是厚度为0.10-0.27mm的聚四氟乙烯涂覆的玻纤布、或是厚度为0.10-0.27mm的聚四氟乙烯涂层芳纶布。
本发明,接头带来的皮带印明显减轻,且使用寿命明显提高。
附图说明
图1是本发明的聚四氟乙烯涂层皮带焊接示意图。
图中:1焊接基布、2焊接膜、3皮带、4皮带拼接缝。
具体实施方式
如图1所示,一种聚四氟乙烯涂层皮带焊接工艺,首先将聚四氟乙烯涂层皮带1平铺在平台上两头对接;将氟塑料焊接膜2平铺在皮带3的搭接缝上,再将焊接基布1平铺在焊接膜2上,使焊接膜2和焊接基布1中间对齐;打开高温熨斗,温度设定为350-400℃,熨斗按压在焊接基布1上,保持30-50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温60-90s。移开不锈钢铁箱,使焊接基布1与皮带3焊接到一起。所述的聚四氟乙烯涂层皮带的材质为聚四氟乙烯涂层玻纤布或聚四氟乙烯涂层芳纶布。所述的焊接膜是氟塑料膜,为乙烯四氟乙烯共聚物(ETFE)、聚全氟乙丙烯(FEP)或四氟乙烯-全幅烷氧基乙烯基醚共聚物(PFA),其厚度为0.06-0.10mm。所述的高强度纤维基布是厚度为0.10-0.27mm的聚四氟乙烯涂覆的玻纤布、或是厚度为0.10-0.27mm的聚四氟乙烯涂层芳纶布。
实施例1:
将聚四氟乙烯玻纤布平铺在平台上。将宽度60mm、厚度0.1mm的ETFE焊接膜、宽度60mm、厚度0.14mm聚四氟乙烯涂层芳纶焊接基布依次平铺在皮带的搭接缝上,中间对齐。打开高温熨斗,温度设定为350℃,温度达到设定值后按压在焊接膜上,保持50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温60s,焊接完成。
实施例2:
将聚四氟乙烯涂层玻纤布皮带平铺在平台上。将宽度60mm、厚度0.1mm的FEP焊接膜、宽度60mm、厚度0.14mm聚四氟乙烯涂层芳纶焊接基布依次平铺在皮带的搭接缝上,中间对齐。打开高温熨斗,温度设定为350℃,温度达到设定值后按压在焊接膜上,保持50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温60s,焊接完成。
实施例3:
将聚四氟乙烯玻纤布平铺在平台上。将宽度60mm、厚度0.1mm的PFA焊接膜、宽度60mm、厚度0.14mm聚四氟乙烯涂层芳纶焊接基布依次平铺在皮带的搭接缝上,中间对齐。打开高温熨斗,温度设定为350℃,温度达到设定值后按压在焊接膜上,保持50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温70s,焊接完成。
实施例4:
将聚四氟乙烯玻纤布平铺在平台上。将宽度60mm、厚度0.1mm的PFA焊接膜、宽度60mm、厚度0.14mm聚四氟乙烯涂层芳纶焊接基布依次平铺在皮带的搭接缝上,中间对齐。打开高温熨斗,温度设定为400℃,温度达到设定值后按压在焊接膜上,保持30s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温90s,焊接完成。
实施例5:
将聚四氟乙烯玻纤布平铺在平台上。将宽度60mm、厚度0.1mm的ETFE焊接膜、宽度60mm、厚度0.27mm聚四氟乙烯涂层玻纤焊接基布依次平铺在皮带的搭接缝上,中间对齐。打开高温熨斗,温度设定为350℃,温度达到设定值后按压在焊接膜上,保持50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温60s,焊接完成。
实施例6:
将聚四氟乙烯玻纤布平铺在平台上。将宽度60mm、厚度0.1mm的FEP焊接膜、宽度60mm、厚度0.27mm聚四氟乙烯涂层玻纤焊接基布依次平铺在皮带的搭接缝上,中间对齐。打开高温熨斗,温度设定为350℃,温度达到设定值后按压在焊接膜上,保持50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温60s,焊接完成。
实施例7:
将聚四氟乙烯玻纤布平铺在平台上。将宽度60mm、厚度0.1mm的PFA焊接膜、宽度60mm、厚度0.27mm聚四氟乙烯涂层玻纤焊接基布依次平铺在皮带的搭接缝上,中间对齐。打开高温熨斗,温度设定为350℃,温度达到设定值后按压在焊接膜上,保持50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温70s,焊接完成。
实施例8:
将聚四氟乙烯玻纤布平铺在平台上。将宽度60mm、厚度0.1mm的PFA焊接膜、宽度60mm、厚度0.27mm聚四氟乙烯涂层玻纤焊接基布依次平铺在皮带的搭接缝上,中间对齐。打开高温熨斗,温度设定为400℃,温度达到设定值后按压在焊接膜上,保持30s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温90s,焊接完成。
Claims (4)
1.一种聚四氟乙烯涂层皮带焊接工艺,其特征在于:取聚四氟乙烯涂层皮带平铺在平台上两头对接;将焊接膜和高强度纤维基布依次平铺在皮带的搭接缝上中间对齐,打开高温熨斗,温度设定为350-400℃,使熨斗按压在焊接基布上,保持30-50s,移开熨斗,用装有冷水的不锈钢铁箱压在焊接位置处降温60-90s,移开不锈钢铁箱,焊接基布与皮带完成焊接。
2.根据权利要求1所述的一种聚四氟乙烯涂层皮带焊接工艺,其特征在于:所述的聚四氟乙烯涂层皮带的材质为聚四氟乙烯涂层玻纤布或聚四氟乙烯涂层芳纶布。
3.根据权利要求1所述的一种聚四氟乙烯涂层皮带焊接工艺,其特征在于:所述的焊接膜是氟塑料膜,为乙烯四氟乙烯共聚物、聚全氟乙丙烯或四氟乙烯-全幅烷氧基乙烯基醚共聚物,其厚度为0.06-0.10mm。
4.根据权利要求1所述的一种聚四氟乙烯涂层皮带焊接工艺,其特征在于:所述的高强度纤维基布是厚度为0.10-0.27mm的聚四氟乙烯涂覆的玻纤布、或是厚度为0.10-0.27mm的聚四氟乙烯涂层芳纶布。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1602609A (en) * | 1978-05-30 | 1981-11-11 | Fluorocarbon Fabrications Ltd | Belt joining |
CN1069537A (zh) * | 1991-08-15 | 1993-03-03 | 陈国龙 | 高强度聚四氟乙烯熔接复合布、制造、应用 |
JPH10291617A (ja) * | 1997-04-18 | 1998-11-04 | Chuko Kasei Kogyo Kk | コンベアベルト |
CN2454332Y (zh) * | 2000-08-04 | 2001-10-17 | 邱荣华 | 一种玻璃纤维输送带 |
CN105692052A (zh) * | 2016-03-11 | 2016-06-22 | 兖州煤业股份有限公司 | 一种芳纶输送带及其搭接方法 |
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2017
- 2017-07-31 CN CN201710637687.3A patent/CN107351409A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1602609A (en) * | 1978-05-30 | 1981-11-11 | Fluorocarbon Fabrications Ltd | Belt joining |
CN1069537A (zh) * | 1991-08-15 | 1993-03-03 | 陈国龙 | 高强度聚四氟乙烯熔接复合布、制造、应用 |
JPH10291617A (ja) * | 1997-04-18 | 1998-11-04 | Chuko Kasei Kogyo Kk | コンベアベルト |
CN2454332Y (zh) * | 2000-08-04 | 2001-10-17 | 邱荣华 | 一种玻璃纤维输送带 |
CN105692052A (zh) * | 2016-03-11 | 2016-06-22 | 兖州煤业股份有限公司 | 一种芳纶输送带及其搭接方法 |
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