CN108995239A - 罐的制造方法 - Google Patents

罐的制造方法 Download PDF

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Publication number
CN108995239A
CN108995239A CN201810558100.4A CN201810558100A CN108995239A CN 108995239 A CN108995239 A CN 108995239A CN 201810558100 A CN201810558100 A CN 201810558100A CN 108995239 A CN108995239 A CN 108995239A
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tension
sheet material
decline
tank
manufacturing
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CN108995239B (zh
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森大五郎
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Toyota Motor Corp
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Toyota Motor Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/56Tensioning reinforcements before or during shaping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/546Measures for feeding or distributing the matrix material in the reinforcing structure
    • B29C70/548Measures for feeding or distributing the matrix material in the reinforcing structure using distribution constructions, e.g. channels incorporated in or associated with the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06Fibrous reinforcements only
    • B29C70/10Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/18Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length in the form of a mat, e.g. sheet moulding compound [SMC]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56Winding and joining, e.g. winding spirally
    • B29C53/58Winding and joining, e.g. winding spirally helically
    • B29C53/60Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B29C53/602Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels for tubular articles having closed or nearly closed ends, e.g. vessels, tanks, containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80Component parts, details or accessories; Auxiliary operations
    • B29C53/8008Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
    • B29C53/8041Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • B29C70/382Automated fiber placement [AFP]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/546Measures for feeding or distributing the matrix material in the reinforcing structure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J12/00Pressure vessels in general
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2022/00Hollow articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • B29L2031/7154Barrels, drums, tuns, vats
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • B29L2031/7172Fuel tanks, jerry cans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0658Synthetics
    • F17C2203/0663Synthetics in form of fibers or filaments
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/22Assembling processes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/32Hydrogen storage
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49764Method of mechanical manufacture with testing or indicating
    • Y10T29/49771Quantitative measuring or gauging

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Textile Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

本发明提供能够抑制片材中的纤维束的张力下降的罐的制造方法。该罐的制造方法具备以下工序:搬运工序,将排列纤维束而构成的片材以在上述纤维束的长度方向施加张力的状态进行搬运;检测工序,检测在被搬运的片材中张力下降的张力下降部位;张力恢复工序,在检测工序中检测到张力下降部位的情况下,喷吹有机溶剂使张力下降部位的张力下降恢复;卷绕工序,将被搬运的片材卷绕于内衬。

Description

罐的制造方法
本申请基于2017年6月6日申请的申请号2017-111371号的日本专利申请要求优先权,并以参照的方式将其公开的全部内容引用到本申请中。
技术领域
本发明涉及罐的制造方法。
背景技术
储藏天然气汽车、燃料电池汽车等中使用的燃气的高压罐具备将排列纤维束而构成的片材卷绕而形成的片材层。
但是,在日本特开2016-223569号公报的罐的制造方法中,具有以下问题:在卷绕前的片材中构成片材的纤维束的一部分存在张力下降的部位时,在罐制造后无法确保片材层所希望的强度。因此,需要一种即便在构成卷绕前的片材的纤维束的一部分存在张力下降的部位时,也能够抑制卷绕后的罐的片材层中的纤维束的张力下降的技术。
发明内容
本发明是为了解决上述课题中的至少一部分而进行的,可以作为以下的形态来实现。
(1)根据本发明的一个形态,提供一种罐的制造方法。该罐的制造方法具备以下工序:搬运工序,将排列纤维束而构成的片材以在上述纤维束的长度方向施加张力的状态进行搬运;检测工序,检测在被搬运的上述片材中张力下降的张力下降部位;张力恢复工序,在上述检测工序中检测到上述张力下降部位的情况下,喷吹有机溶剂使上述张力下降部位的张力下降恢复;以及卷绕工序,将被搬运的上述片材卷绕于内衬。如果成为这样的形态,则在片材中检测到张力下降部位的情况下,能够通过张力恢复工序使张力下降部位的张力恢复。因此,能够将张力下降部位被恢复的片材卷绕而形成片材层,所以能够抑制卷绕后的罐的片材层中的纤维束的张力下降。
(2)在上述形态中,上述张力恢复工序中的上述有机溶剂的喷吹可以利用多个喷吹部进行,该多个喷吹部从被搬运的上述片材离开并沿上述片材的宽度方向配置,并且能够向上述片材的面喷吹上述有机溶剂。通过成为这样的形态,由于沿片材的宽度方向配置多个喷吹部,所以能够抑制有机溶剂向张力下降部位的喷吹偏离。
(3)在上述形态中,上述张力恢复工序中的上述有机溶剂的喷吹可以利用上述多个喷吹部中的配置于在上述片材的宽度方向上与上述张力下降部位的位置对应的位置的喷吹部进行。通过成为这样的形态,由于使多个喷吹部中的配置于在片材的宽度方向上与张力下降部位的位置对应的位置的喷吹部喷吹有机溶剂,所以能够抑制向与张力下降部位不同的位置喷吹有机溶剂。
(4)在上述形态中,上述检测工序可以基于映现在由拍摄装置拍摄的图像中的上述片材中的上述纤维束的取向角度来检测上述张力下降部位。通过成为这样的形态,能够在不与片材接触的情况下进行检测工序,因此同与片材接触而进行的检测工序相比较,能够防止因检测工序而使片材产生损伤。
(5)在上述形态中,上述检测工序可以基于利用非接触式张力计得到的测定结果来检测上述张力下降部位,该非接触式张力计能够在非接触的状态下测定张力。通过成为这样的形态,能够在不与片材接触的情况下进行检测工序,因此同与片材接触而进行的检测工序相比较,能够防止因检测工序而使片材产生损伤。
(6)根据本发明的另一形态,提供一种罐的制造方法。该罐的制造方法具备以下工序:搬运工序,将排列纤维束而构成的片材以在上述纤维束的长度方向施加张力的状态进行搬运;检测工序,检测在被搬运的上述片材中张力下降的张力下降部位;张力恢复工序,在上述检测工序中检测到上述张力下降部位的情况下,喷吹有机溶剂使上述张力下降部位的张力下降恢复;卷绕工序,将被搬运的上述片材卷绕于心轴;片材层形成工序,使被卷绕于上述心轴的上述片材固化而形成片材层;以及插入工序,在将上述片材层与上述心轴分离之后,向上述片材层插入内衬。通过成为这样的形态,从而在片材中检测到张力下降部位的情况下,能够通过张力恢复工序使张力下降部位的张力恢复。因此,能够将张力下降部位被恢复的片材卷绕而形成片材层,所以能够抑制卷绕后的罐的片材层中的纤维束的张力下降。
本发明的形态不限于罐的制造方法,例如,也可适用于罐本身、罐的制造装置等各种形态。另外,本发明完全不限于上述的形态,在不脱离本发明的主旨的范围内,当然可以以各种形态来实施。
附图说明
图1是表示罐的简要构成的截面图。
图2是表示罐的制造方法的工序图。
图3是表示片材卷绕装置的说明图。
图4是从Z轴方向+侧观察片材卷绕装置的说明图。
图5是表示片材层形成工序的详细内容的工序图。
符号说明
10…罐
13…金属口
14…金属口
15…贯通孔
20…内衬
21…直部
22…圆顶部
23…圆顶部
30…加强层
32…片材层
32P…片材
34…螺旋层
200…片材卷绕装置
210…搬运辊
220…内衬旋转部
230…照相机
240…喷射器
250…控制部
260…检测部
AX…轴线
D…张力下降部位
Da…纤维束
F…纤维束
R1…区域
R2…区域
具体实施方式
A.实施方式:
A1.罐的构成
图1是表示利用本发明的实施方式的制造方法制造的罐10的简要构成的截面图。图1中图示了相互正交的XYZ轴。图1的XYZ轴与其它图的XYZ轴对应。本实施方式的罐10中储藏例如70MPa左右的高压的氢气。罐10具备内衬20和加强层30。
内衬20为树脂制的中空内衬。内衬20例如由聚乙烯、尼龙、聚丙烯、聚酯等热塑性树脂形成。内衬20的轴线与罐10的轴线AX相同。内衬20具备直部21、圆顶部22、23和金属口13、14。
直部21具有圆筒形状。圆顶部22、23设置于直部21的两端,形成为朝向内衬20的外侧凸出的曲面状。在圆顶部22、23的顶点分别设有由铝、不锈钢等金属形成的金属口13、14。一个金属口13具有贯通孔15,用于从罐10内取出气体或者向罐10内补充气体。另一个金属口14用于在内衬20的加强或加强层形成时的内衬的旋转。也可以省略金属口14。
加强层30为覆盖内衬20的周围的层,是用于加强内衬20的层。加强层30具备片材层32和螺旋层34。也可以将片材层32称为内层,将螺旋层34称为外层。
片材层32是通过在内衬20的直部21的外表面将排列纤维束而构成的片材卷绕多次并层叠而构成的。本实施方式的片材是通过使热固性树脂浸入排列在一个方向的纤维束而构成的片材。具体而言,本实施方式的片材是通过使环氧树脂浸入由碳纤维形成的纤维束而构成的。构成片材的纤维束的纤维可以为玻璃纤维、芳族聚酰胺纤维等强化纤维。浸入纤维束的树脂可以为酚醛树脂、不饱和聚酯树脂等热固性树脂。在本实施方式中,片材中的纤维束是将片材的卷绕方向、即直部21的圆周方向作为一个方向,排列沿该方向伸长的纤维束而成的。换言之,纤维束以沿与片材的宽度方向正交的方向伸长的状态排列。这样的片材层中的纤维束的排列与将纤维束进行环形卷绕而得的排列类似。因此,也可以将“片材层”称为“环形层”。像罐10这样的储藏高压气体的罐的情况下,与一般的纤维强化树脂材的厚度相比,加强层的厚度更厚,因此有构成片材层的片材的卷绕数变多的趋势。因此,在已卷绕的片材中的歪斜的片材上卷绕片材的可能性增高,所以有可能容易产生松弛。
螺旋层34是通过将纤维束螺旋卷绕于片材层32和圆顶部22、23而构成的。螺旋卷绕中使用的纤维束是通过使环氧树脂等热固性树脂浸入由碳纤维形成的纤维束而构成的。
片材层32的厚度和螺旋层34的厚度分别根据罐10所要求的耐压性能、强度适当地设定。
A2.罐的制造方法
图2是表示罐10的制造方法的工序图。在本实施方式的制造方法中,首先,进行片材层形成工序,即在内衬20上卷绕片材而形成片材层32(工序P100)。片材层形成工序的详细内容在下文叙述。
在进行过片材层形成工序(工序P100)之后,进行螺旋层形成工序,即在内衬20上螺旋卷绕纤维束而形成螺旋层34(工序P200)。在该螺旋层形成工序中,将纤维束以相对于罐10的轴线AX为0~30度的卷绕角度卷绕在包含圆顶部22、23和片材层32的范围。也就是说,在该螺旋层形成工序中,在片材层32上和内衬20中的圆顶部22、23上卷绕纤维束。
在进行过螺旋层形成工序(工序P200)之后,进行用于使片材层32和螺旋层34一体地加热固化的热固化处理工序(工序P300)。经过以上说明的一系列工序,罐10完成。
图3是表示片材层形成工序(工序P100)中使用的片材卷绕装置200的说明图。另外,在图3中,将片材32P的表面的一部分的区域R1和R2放大而示意性地表示。片材32P为用于卷绕在内衬20上而形成片材层32的片材。对于区域R1和R2在下文叙述。片材卷绕装置200具备搬运辊210、内衬旋转部220、照相机230、喷射器240和控制部250。
搬运辊210将片材32P以在Y轴方向施加张力的状态向内衬旋转部220搬运。搬运辊210以可在Z轴方向移动的方式构成,通过在Z轴方向移动,能够调整片材32P的张力。在本实施方式的制造方法中,将构成片材32P的纤维束伸长的方向即Y轴方向作为搬运方向来搬运片材32P。纤维束伸长的方向也就是纤维束的长度方向。
使内衬旋转部220在支承内衬20的状态下以内衬20的轴线AX为旋转轴进行旋转。基于内衬旋转部220产生的内衬20的旋转与搬运辊210的旋转同步进行。
照相机230在搬运辊210与内衬旋转部220之间,与被搬运的片材32P相比配置在Z轴方向+侧。照相机230拍摄被搬运的片材32P的朝向Z轴方向+侧的面。照相机230拍摄到的图像的数据被送到控制部250。在本实施方式中,照相机230为CCD照相机。照相机230也可以为CMOS照相机。在本实施方式中,照相机230相当于用于解决课题的方式中的拍摄装置的下位概念。
喷射器240与照相机230相比配置在Y轴方向+侧、即搬运方向的下游侧,且以从被搬运的片材32P向Z轴方向+侧离开的方式沿片材32P的宽度方向即X轴方向配置多个。喷射器240能够向片材32P的朝向Z轴方向+侧的面喷吹有机溶剂。在本实施方式中,喷射器240喷吹丙酮。在本实施方式中,喷射器240相当于用于解决课题的方式中的喷吹部的下位概念。
图4是从Z轴方向+侧观察片材层形成工序(工序P100)中的片材卷绕装置200的说明图。图4中,为了容易理解,仅图示内衬20、片材32P、内衬旋转部220和喷射器240。喷射器240沿X轴方向配置多个。在本实施方式中,喷射器240沿X轴方向配置5个。
返回到图3,控制部250对片材卷绕装置200的各部的动作进行控制。控制部250具备检测部260。检测部260将处于被施加了张力的状态的片材32P中没有张力的纤维束检测为片材32P中张力下降的张力下降部位。张力下降部位是指片材32P中与沿搬运方向被拉伸的纤维束相比松弛的纤维束。
图5是表示片材卷绕装置200将片材卷绕于内衬20而形成片材层32的片材层形成工序(图2的工序P100)的详细内容的工序图。若开始片材层形成工序(工序P100),则进行利用搬运辊210以施加张力的状态搬运片材32P的搬运工序(工序P110)。被搬运辊210搬运的片材32P被内衬20卷取,内衬20利用内衬旋转部220旋转。即,搬运工序(工序P110)持续进行直至移动到后述的卷绕工序(工序P140)。
进行对被搬运的片材32P中张力下降部位进行检测的检测工序(工序P120)。在检测工序(工序P120)中,张力下降部位的检测由检测部260进行。检测部260基于映现在由照相机230拍摄的图像中的片材32P中的纤维束的取向角度来检测张力下降部位。
更具体而言,检测部260通过对由照相机230拍摄到的图像进行处理,从而算出各纤维束的位置、各纤维束的取向角度、纤维束的密度,之后如下地检测张力下降部位。即,检测部260如下检测:相对于沿搬运片材32P的搬运方向伸长的假想的基准线,配置纤维束中具有倾斜预先设定的角度以上而伸长的部分的纤维束,并且将纤维束的密度从预先设定的范围脱离的位置检测为张力下降部位。在本实施方式中,预先设定的角度是指正负3度的范围。
在检测工序中检测到张力下降部位的情况下(工序P120:是),进行喷吹有机溶剂使张力下降部位的张力下降恢复的张力恢复工序(工序P130)。具体而言,在张力恢复工序(工序P130)中,进行如下的处理。
在检测工序中检测到张力下降部位的情况下(工序P120:是),从喷射器240向片材32P的朝向Z轴方向+侧的面中的张力下降部位喷吹有机溶剂。在本实施方式中,有机溶剂对张力下降部位的喷吹利用沿X轴方向配置多个的喷射器240中的、配置于在片材32P的宽度方向即X轴方向上与张力下降部位的位置对应的位置的喷射器240进行。换言之,利用配置于与片材32P中张力下降部位的X轴方向上的位置相同的X轴方向上的位置的喷射器240进行有机溶剂的喷吹。在本实施方式中,喷射器240向1个位置的张力下降部位喷吹的有机溶剂的量为0.2g。应予说明,并不局限于0.2g,可以为能够恢复张力下降的任意的量。例如,可以为对应于片材32P的厚度的量,也可以为对应于片材32P的材质的量。
图3中,区域R1和区域R2中的多条实线表示构成片材32P的纤维束的排列。区域R1表示片材32P中具有张力下降部位的区域。区域R2表示利用喷射器240喷吹有机溶剂后的区域R1。根据拍摄到片材32P中的包含区域R1的区域的图像,检测部260检测到张力下降部位D时,从喷射器240向张力下降部位D喷吹有机溶剂。在区域R1,通过喷吹有机溶剂,张力下降部位D的纤维束Da与沿搬运方向即Y轴方向被拉伸的纤维束F通过范德华力凝聚。通过张力下降部位D的纤维束Da与纤维束F凝聚,从而利用纤维束彼此的相互作用使张力下降部位D的张力下降恢复(参照区域R2)。即便有机溶剂蒸发,也可维持张力下降部位D的纤维束Da与纤维束F缠绕凝聚的状态,因此以比范德华力更强的力凝聚,所以张力下降部位D的张力恢复。
应予说明,在检测工序中没有检测到张力下降部位的情况下(工序P120:否),不进行张力恢复工序(工序P130)。
在进行张力恢复工序(工序P130)之后或者在检测工序中没有检测到张力下降部位之后(工序P120:否),进行将被搬运的片材32P卷绕于内衬20的卷绕工序(工序P140)。在没有进行过张力恢复工序(工序P130)的情况下,在卷绕工序(工序P140)中,将经过检测工序(工序P120)的片材32P卷绕于内衬20。经过这些工序后,将卷绕于内衬20的片材32P加热固化而形成片材层32。
根据以上说明的实施方式,在检测到片材32P中张力下降部位D的情况下,能够通过张力恢复工序(工序P130)使张力下降部位D的张力恢复。因此,能够将张力下降部位D被恢复的片材32P卷绕而形成片材层32,所以能够抑制卷绕后的罐10的片材层32中的纤维束的张力下降。另外,已经说明的罐10的制造方法尤其在将片材直接卷绕于像内衬20这样的树脂制的内衬时是有效的。这是由于如果为了抑制张力下降部位的产生而提高施加于被卷绕的片材的张力,则内衬可能歪曲,但根据上述说明的罐10的制造方法,能够在内衬20不歪曲的情况下抑制卷绕后的罐10的片材层32中的纤维束的张力下降。
另外,在实施方式的罐10的制造方法中,利用沿X轴方向配置5个的喷射器240进行有机溶剂的喷吹。因此,由于沿片材32P的宽度方向即X轴方向配置多个喷射器240,所以能够抑制有机溶剂向张力下降部位的喷吹偏离。
另外,在实施方式的罐10的制造方法中,有机溶剂向张力下降部位D的喷吹利用沿X轴方向配置多个的喷射器240中的、配置于在片材32P的宽度方向即X轴方向上与张力下降部位D的位置对应的位置的喷射器240进行。因此,由于使多个喷射器240中配置于在片材32P的宽度方向上与张力下降部位D的位置对应的位置的喷射器240喷吹有机溶剂,所以能够抑制向与张力下降部位D不同的位置喷吹有机溶剂。
另外,在实施方式的罐10的制造方法中,基于映现在由照相机230拍摄的图像中的片材32P中的纤维束的取向角度,检测张力下降部位D。因此,能够在不与片材32P接触的情况下进行检测工序(工序P120),因此,同与片材32P接触而进行的检测工序相比较,能够防止因检测工序(工序P120)而使片材32P产生损伤。
B.变形例:
B1.变形例1:
在实施方式的罐10的制造方法中,基于映现在由照相机230拍摄的图像中的片材32P中的纤维束的取向角度来检测张力下降部位,但本发明并不限定于此。例如,可以基于利用能够在不与片材32P接触的状态下测定片材32P的张力的非接触式张力计得到的测定结果来检测张力下降部位。作为非接触式张力计,有通过对被搬运的片材32P从与搬运方向正交的方向(与片材32P的面垂直的方向)吹空气而利用空气压力值的变化来测定张力的张力计、或者通过使被搬运的片材32P振动而测定从片材32P产生的声音的频率后换算成张力的张力计等。另外,基于映现在由照相机230拍摄的图像中的片材32P中的纤维束的取向角度和利用非接触式张力计得到的测定结果这两者检测张力下降部位的情况,与仅基于纤维束的取向角度和利用非接触式张力计得到的测定结果中的一方来检测张力下降部位的情况相比,能够提高张力下降部位的检测精度。
B2.变形例2:
在实施方式的罐10的制造方法中,将卷绕于内衬20的片材32P进行加热固化而形成了片材层32,但本发明并不限定于此。例如,可以在将片材32P卷绕于心轴之后,使卷绕于心轴的片材32P热固化而形成片材层32。这样的情况下,通过在从片材层32分离心轴之后,向片材层32插入内衬20,从而在内衬20的外表面配置片材层32。这样的罐10的制造方法尤其在将片材直接卷绕于像内衬20这样的树脂制的内衬时有效。这是由于如果为了抑制张力下降部位的产生而提高施加于被卷绕的片材的张力,则内衬可能产生歪曲,但根据这样的罐10的制造方法,能够在内衬20不歪曲的情况下抑制卷绕后的罐10的片材层32中的纤维束的张力下降。
B3.变形例3:
在实施方式的罐10的制造方法中,喷射器240沿X轴方向配置了5个,但本发明并不限定于此。喷射器240可以沿从搬运方向即Y轴方向倾斜的方向配置多个。另外,喷射器240可以在从Y轴方向观察时不相互重合的位置配置多个。
B4.变形例4:
在实施方式的罐10的制造方法中,有机溶剂对张力下降部位的喷吹是利用沿X轴方向配置多个的喷射器240中的、配置于在片材32P的宽度方向即X轴方向上与张力下降部位D的位置对应的位置的喷射器240进行的,但本发明并不限定于此。有机溶剂对张力下降部位的喷吹可以通过从配置多个的喷射器240全部喷吹有机溶剂来进行。另外,以可在X轴方向移动的方式构成的1个喷射器240可以在与张力下降部位D的X轴方向上的位置相同的X轴方向上的位置移动,从而对张力下降部位D进行有机溶剂的喷吹。
B5.变形例5:
在实施方式的罐10的制造方法中,基于纤维束相对于沿搬运片材32P的搬运方向伸长的假想的基准线的倾斜来检测张力下降部位,但本发明并不限定于此。例如,可以基于纤维束相对于划定片材32P的边中在宽度方向上相对的边中的任一边的倾斜来检测张力下降部位。
B6.变形例6:
在实施方式的罐10的制造方法中,将片材32P以构成片材32P的纤维束沿搬运方向被拉伸的状态进行搬运,但本发明并不限定于此。例如,由以沿从片材的长边方向倾斜的方向伸长的状态排列的纤维束构成的片材的情况下,可以在构成片材32P的纤维束沿从搬运方向倾斜的方向排列的状态下搬运。即便是这样的情况下,通过使张力下降部位恢复,也能够得到与实施方式的罐10的制造方法相同的效果。
B7.变形例7:
在实施方式的罐10的制造方法中,通过将卷绕于内衬20的片材32P加热固化而形成了片材层32,但本发明并不限定于此。例如,可以在没有浸入树脂的片材32P被卷绕于内衬20的状态下将内衬20配置于模具中,在施加压力的状态下使树脂流入模具中,由此形成片材层32。
B8.变形例8:
实施方式的罐10的制造方法中使用的片材32P是使热固性树脂浸入于排列在一个方向的纤维束而构成的片材,但本发明并不限定于此。例如,片材32P可以为使热固性树脂浸入于排列在二个方向以上的纤维束而构成的片材。这样的片材的情况下,通过在被排列的各个纤维束的长度方向施加张力的状态下搬运片材,从而容易在检测工序中检测张力下降部位。
B9.变形例9:
在实施方式的罐10的制造方法中,喷射器240所喷吹的有机溶剂为丙酮,但本发明并不限定于此。例如,喷射器240所喷吹的有机溶剂可以选自甲醇、乙醇等醇系溶剂,酮系溶剂,乙酸乙酯、乙酸丁酯等酯系溶剂,四氢呋喃、二烷和二甲基亚砜等醚系溶剂,氯苯、二氯苯和溴苯等卤代烃系溶剂,甲苯、二甲苯、乙苯和乙烯基苯等芳香族烃系溶剂,脂肪族烃系溶剂,硅油系溶剂,胺系有机溶剂等。喷射器240所喷吹的有机溶剂优选为蒸发速度快的溶剂,优选丙酮、二乙醚和氯仿等。喷射器240所喷吹的有机溶剂优选沸点为摄氏100度以下或者潜热小于水的溶剂。采用有机溶剂作为喷射器240所喷吹的溶剂是由于能够避免使用水时会发生的以下问题:内衬吸水、环氧树脂变得难以凝固、促进环氧树脂的水解等。
本发明不限于上述的实施方式、实施例、变形例,在不脱离其主旨的范围内可以以各种构成来实现。例如,与发明内容栏中记载的各形态中的技术特征对应的实施方式、实施例、变形例中的技术特征在为了解决上述课题的一部分或全部时或者为了实现上述效果的一部分或全部时可以适当地进行替换、组合。另外,其技术特征不是作为本说明书中必需的特征进行说明的,可以适当地删除。

Claims (6)

1.一种罐的制造方法,具备以下工序:
搬运工序,将排列纤维束而构成的片材以在所述纤维束的长度方向施加张力的状态进行搬运;
检测工序,检测在被搬运的所述片材中张力下降的张力下降部位;
张力恢复工序,在所述检测工序中检测到所述张力下降部位的情况下,喷吹有机溶剂使所述张力下降部位的张力下降恢复;以及
卷绕工序,将被搬运的所述片材卷绕于内衬。
2.根据权利要求1所述的罐的制造方法,其中,所述张力恢复工序中的所述有机溶剂的喷吹是利用多个喷吹部进行的,所述多个喷吹部从被搬运的所述片材离开并沿所述片材的宽度方向配置,并且能够向所述片材的面喷吹所述有机溶剂。
3.根据权利要求2所述的罐的制造方法,其中,所述张力恢复工序中的所述有机溶剂的喷吹是利用所述多个喷吹部中的配置于在所述片材的宽度方向上与所述张力下降部位的位置对应的位置的喷吹部进行的。
4.根据权利要求1~3中任一项所述的罐的制造方法,其中,所述检测工序是基于映现在由拍摄装置拍摄的图像中的所述片材中的所述纤维束的取向角度来检测所述张力下降部位的。
5.根据权利要求1~4中任一项所述的罐的制造方法,其中,所述检测工序是基于利用非接触式张力计得到的测定结果来检测所述张力下降部位的,所述非接触式张力计能够在非接触的状态下测定张力。
6.一种罐的制造方法,包括以下工序:
搬运工序,将排列纤维束而构成的片材以在所述纤维束的长度方向施加张力的状态进行搬运;
检测工序,检测在被搬运的所述片材中张力下降的张力下降部位;
张力恢复工序,在所述检测工序中检测到所述张力下降部位的情况下,喷吹有机溶剂使所述张力下降部位的张力下降恢复;
卷绕工序,将被搬运的所述片材卷绕于心轴;
片材层形成工序,使被卷绕于所述心轴的所述片材固化而形成片材层;以及
插入工序,在将所述片材层与所述心轴分离之后,向所述片材层插入内衬。
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