CN1032123A - 遮蔽材料以及该遮蔽材料的成型模具 - Google Patents

遮蔽材料以及该遮蔽材料的成型模具 Download PDF

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Publication number
CN1032123A
CN1032123A CN88104945A CN88104945A CN1032123A CN 1032123 A CN1032123 A CN 1032123A CN 88104945 A CN88104945 A CN 88104945A CN 88104945 A CN88104945 A CN 88104945A CN 1032123 A CN1032123 A CN 1032123A
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masking material
mould
steam vent
foamed polystyrene
patrix
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CN88104945A
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CN1015308B (zh
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堀木清之助
牧野礼二
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Nagoya Oil Chemical Co Ltd
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Nagoya Oil Chemical Co Ltd
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Publication of CN1032123A publication Critical patent/CN1032123A/zh
Publication of CN1015308B publication Critical patent/CN1015308B/zh
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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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Physical Vapour Deposition (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

本发明提供一种板状聚苯乙烯发泡体遮蔽材料 及其成型模具。该遮蔽材料表面和/或背面有凹状 排气孔痕迹和纵与模的凹槽，该成型模具由上模和下 模组成，该上模和/或下模的模面上开有口部向外突 伸的排气孔。

Description

本发明涉及对构件材料表面进行涂覆、电镀、真空蒸镀金属等表面处理，特别是在上述表面处理中，把不需进行表面处理的表面部份贴遮而保护起来的遮蔽材料以及用于该遮蔽材料的成型模具。
这种类型的遮蔽材料已提出的有板状聚苯乙烯发泡体，在其表面和/或背面有纵和横的凹槽（如实开昭62-5852所述），在对构件进行表面处理时，先用手或钳等工具在该遮蔽材料上沿凹槽切割下与构件材料表面不需进行表面处理部份相应大小的遮蔽材料，用粘合剂等将切割下的材料粘贴到构件材料表面不需进行表面处理的部位上。
用于这种遮蔽材料成型的成型模具由上模和下模组成，该上模和/或下模的模具面上设有使遮蔽材料形成凹槽的纵和横的凸条，由这些凸条围成的块状区域的全部或一部份设有使成型模具向外开口的排气孔。从该成型模具的加料口中把水蒸汽和发泡性聚苯乙烯珠状体组成的予备发泡成型的材料吹送填入模具中，经加热发泡而使遮蔽材料成型。模具内的空气、水蒸汽以及发泡剂气体可经排气孔向外排除，使成型材料均匀地充填在模具内并且发泡均匀。由上述方法制得的遮蔽材料表面当然有着因排气孔存在而形成的痕迹。在已有技术中，上述成型模具的排气孔开口部是凹入上模和/或下模的模面内的，由此制得的遮蔽材料表面形成的排气孔痕迹是由遮蔽材料表面向外突出的，要把这种有着由表面向外突出的排气孔痕迹的遮蔽材料粘贴到构件材料表面上，在向遮蔽材料表面涂布粘合剂时，这样的排气孔痕迹妨碍粘合剂的均匀涂布，而且把该遮蔽材料向构件材料表面粘合时，这些排气孔痕迹使遮蔽材料从构件材料表面上拱，粘贴的紧密性差，在进行表面处理前或表面处理中，遮蔽材料发生移位甚至脱落，或产生表面处理剂从遮蔽材料和构件材料表面的空隙间侵入之类的弊病。
本发明的目的是为了解决已有技术中的问题，提供一种板状聚苯乙烯发泡体遮蔽材料，其表面和/或背面形成的排孔痕迹是凹状的，以及提供一种用于该遮蔽材料的成型模具。
本发明的任务是这样实现的：提供一种用于该遮蔽材料的成型模具，该模具由上模和下模组成，在上模和/或下模模面上开有排气孔，该排气孔的开口部向上模和/或下模的模面突出，从上述由上下模组成的成型模具的加料口中将聚苯乙烯发泡性珠状体充填到模具内，此时模具内的空气由排气孔排出，当水蒸汽和聚苯乙烯发泡性珠状体一同加入到模具内时，水蒸汽也从排气孔排出使上述聚苯乙烯发泡性珠状体可均匀地充填到模具内，当加热发泡使遮蔽材料成型时，产生的发泡剂气体也由排气孔排出，使可发泡性体在模具内均匀发泡而形成均匀的发泡材料，由此而形成的遮蔽材料表面和/或背面有着因排气孔存在而形成的凹状痕迹。
由于本发明所述的遮蔽材料的表面和/或背面上形成的排气孔痕迹是凹状的，在该遮蔽材料表面涂布粘合剂等就很容易涂布均匀。将该遮蔽材料粘贴到构件材料表面时，上述排气孔痕迹对于遮蔽材料和构件材料表面的粘贴紧密性没有任何影响。
以下将结合附图对发明作进一步详细描述。
图1是成型模具的剖面图。
图2是成型模具模面的部分斜视图。
图3是充填入可发泡性聚苯乙烯珠状体后的成型模具剖面图。
图4是经成型模具成型后的遮蔽材料斜视图。
图5是粘合层和脱模性片材组合状态的剖面图。
图6是遮蔽材料的形态图。
图7是遮蔽材料剥离状态图。
图8是其他种排气孔的斜视图。
参照图1-图8，（1）是遮蔽材料的成型模具，由上模（2）和下模（3）组成。上模（2）以及下模（3）的模面（2）A、（3）A上有着若干条纵和横方向排列的凸条（4）、（5），由该凸条（4）、（5）围成的块状区域上开有排气孔（6）、（7），该排气孔（6），（7）由模面（2）A、（3）A向外有一定量的突伸，排气孔开口部设有径向配置的栅格（6）A、（7）A。该排气孔（6）、（7）的突伸量通常为0.2-0.5毫米。（8）是聚苯乙烯发泡性珠状体的加料部件，由水蒸汽导入管（8）A和与该水蒸汽导入管（8）A相连的聚苯乙烯发泡性珠状体导入管（8）B组成，在图3所示的加料部件（8）中，水蒸汽从水蒸汽导入管（8）A中按箭头方向导入，该水蒸汽流把聚苯乙烯发泡性珠状体（9）从聚苯乙烯发泡性珠状体导入管（8）B中吸引并向成型模具（1）中充填。此时，成型模具（1）内的空气以及被导入的水蒸汽从排气孔（6）、（7）中按箭头所示方向排出，聚苯乙烯发泡性珠状体（9）在成型模（1）内均匀成型。排气孔（6）、（7）中径向配置的栅格（6）A、（7）A的间隔比聚苯乙烯发泡性珠状体（9）的直径小一些，可防止聚苯乙烯发泡性珠状体（9）从排气孔（6）、（7）中漏出。充填在成型模具（1）内的聚苯乙烯发泡性珠状体（9）被加热发泡，形成图4所示的板状聚苯乙烯发泡体组成的遮蔽材料（10），在成型时，由于产生的发泡剂气体可从排气孔（6）、（7）排出，聚苯乙烯发泡体可在成型模（1）内均匀进行发泡而得到均匀发泡体组成的遮蔽材料（10）。如图4所示的上述方法成型的遮蔽材料的表面以及背面上有由于成型模具（1）的模面（2）A、（3）A上的凸条（4）、（5）而形成的凹槽（11），这些凹槽纵向和横向排列使板形成截块状，这些凹槽围成的块状区域的表面或背面有着因排气孔（6）、（7）而形成的凹状区（12）。如图5所示，该遮蔽材料的一面涂有粘合层（13），在粘合层上覆有用剥离纸等这类的脱模片材，由于该遮蔽材料（10）的表面有凹状区（12），粘合层（13）可均匀涂布其表面上。如图6所示，用手在该遮蔽材料（10）上沿着凹槽取下与构件材料（15）不需进行表面处理的区域（16）相应大小的遮蔽材料，将脱模性片材（14）剥离除去，由于均匀地涂上了粘合层（13），使取下的遮蔽材料很紧密地粘贴在下面的不需进行表面处理的区域（16）上。用喷枪（17）等设备把涂料之类的材料向构件材料（15）上进行喷涂等涂覆处理。在涂覆之后，如图7所示，把该遮蔽材料（10）用手钩（18），等工具钩刺住而剥离除去，或者采用加热处理，使加热温度比形成遮蔽材料（10）的聚苯乙烯的软化点高出许多，遮蔽材料（10）会冷却后自行收缩脱离。
本发明不限于上述实施例的内容，例如遮蔽材料的表面或背面可以设有各种各样的凹状区，也可以在块状区的全部或一部份设有凹状区。此外，成型模具的上模或下模的模面上的凸条也不是必须的，也可用平的模面，采用这种模面成形后的遮蔽材料是平整的板材，在成型后的遮蔽材料上，用刀等工具切入成凹槽，使凹槽围成园形、四角形等所希望的形状或大小，另外，遮蔽材料也可以根据需要成型为一块或几块。成型模具的排气孔也可如图8所示，设计有园形或三角形等任意形状的小孔。

Claims (3)

1、一种板状聚苯乙烯发泡体遮蔽材料，其特征是这种板状聚苯乙烯发泡体的表面和/或背面上形成的排气孔痕迹是凹状的。
2、根据权利要求1所规定的遮蔽材料，其特征是该板状聚苯乙烯发泡体的表面和/或背面设有纵和横的凹槽。
3、一种遮蔽材料的成型模具，其特征是成型模具由上模和下模组成，该上模和/或下模的模面上开有排气孔，该排气孔的开口部由该上模和/或下模模面向外突伸。
CN88104945A 1987-08-12 1988-08-08 遮蔽材料及其成型模具 Expired CN1015308B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP201310/87 1987-08-12
JP62201310A JPH0794706B2 (ja) 1987-08-12 1987-08-12 マスキング材および該マスキング材の成形型

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CN1032123A true CN1032123A (zh) 1989-04-05
CN1015308B CN1015308B (zh) 1992-01-22

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JP (1) JPH0794706B2 (zh)
KR (1) KR960014533B1 (zh)
CN (1) CN1015308B (zh)
AU (1) AU604954B2 (zh)
CA (1) CA1330484C (zh)
DE (1) DE3866311D1 (zh)
SG (1) SG31693G (zh)

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CN108204920A (zh) * 2017-12-08 2018-06-26 西安飞机工业（集团）有限责任公司 一种喷丸疲劳试验遮蔽保护方法

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CN108204920A (zh) * 2017-12-08 2018-06-26 西安飞机工业（集团）有限责任公司 一种喷丸疲劳试验遮蔽保护方法

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Publication number Publication date
EP0303270B1 (en) 1991-11-21
KR960014533B1 (ko) 1996-10-16
EP0303270A1 (en) 1989-02-15
CN1015308B (zh) 1992-01-22
SG31693G (en) 1993-05-21
AU2063288A (en) 1989-02-16
AU604954B2 (en) 1991-01-03
JPS6447846A (en) 1989-02-22
JPH0794706B2 (ja) 1995-10-11
CA1330484C (en) 1994-07-05
KR890003451A (ko) 1989-04-14
DE3866311D1 (de) 1992-01-02

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