CN111633901A - 一种发泡制品的快速成型工艺 - Google Patents

一种发泡制品的快速成型工艺 Download PDF

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Publication number
CN111633901A
CN111633901A CN202010620021.9A CN202010620021A CN111633901A CN 111633901 A CN111633901 A CN 111633901A CN 202010620021 A CN202010620021 A CN 202010620021A CN 111633901 A CN111633901 A CN 111633901A
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China
Prior art keywords
product
mould
foaming
forming process
eps
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CN202010620021.9A
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English (en)
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刘小英
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Individual
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Individual
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Priority to CN202010620021.9A priority Critical patent/CN111633901A/zh
Publication of CN111633901A publication Critical patent/CN111633901A/zh
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Classifications

    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • 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
    • B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid
    • 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
    • B29C44/3419—Quick cooling
    • 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
    • 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
    • B29C44/60—Measuring, controlling or regulating
    • 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
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B29K2025/04—Polymers of styrene
    • B29K2025/06—PS, i.e. polystyrene

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

本发明涉及复合材料成型技术领域，特别是一种EPS发泡制品的快速成型工艺，与现有技术相比，该发泡制品采用EPS预发泡颗粒，利用定制型模具，在高温高压条件下快速发泡联结成型，并通过快速冷却制得高密度产品，制得的整体产品硬度高，其硬度可达到邵A80‑90°，比现有技术中的聚苯乙烯产品硬度高出50％以上，并且强度也可以明显提升50％。

Description

一种发泡制品的快速成型工艺
技术领域
本发明涉及复合材料成型技术领域，特别是一种EPS发泡制品的快速成型工艺。
背景技术
现有技术中的聚苯乙烯(即EPS)进行发泡处理时，都是采用蒸汽进行喷射式发泡，发泡后由其自行冷却，采用这种发泡工艺所制成的发泡制品的硬度低、强度小，无法满足一些复合成型材料中的特殊要求。
发明内容
为解决现有技术中聚苯乙烯发泡成型工艺中所存在的缺陷和问题，提供一种EPS发泡制品的快速成型工艺。
本发明为解决其技术问题所采用的技术方案是：本发明的一种发泡制品的快速成型工艺如下：
(1)采用一特制的密闭性模具，在模具内铺洒适当水量；
(2)合上上下模并压实，保持内部密封环境，加温后形成高温高压环境；
(3)从模具一侧真空抽入EPS发泡颗粒，填实模具内部；
(4)在150℃以上加热数分钟，利用水汽化成水蒸气使EPS颗粒发泡胀大并联结在一起；
(5)加热时间到达后迅速冷却，使成型制品立刻定型。
本发明的有益效果是：与现有技术相比，本发明的一种发泡制品的快速成型工艺采用EPS预发泡颗粒，利用定制型模具，在高温高压条件下快速发泡联结成型，并通过快速冷却制得高密度产品，制得的整体产品硬度高，其硬度可达到邵A80-90°，比现有技术中的聚苯乙烯产品硬度高出50％以上，并且强度也可以明显提升50％。
具体实施方式
本发明的一种发泡制品的快速成型工艺如下：
(1)采用一特制的密闭性模具，在模具内铺洒适当水量；
(2)合上上下模并压实，保持内部密封环境，加温后形成高温高压环境；
(3)从模具一侧真空抽入EPS发泡颗粒，填实模具内部；
(4)在150℃以上加热数分钟，利用水汽化成水蒸气使EPS颗粒发泡胀大并联结在一起；
(5)加热时间到达后迅速冷却，使成型制品立刻定型。
综上所述，与现有技术相比，本发明的一种发泡制品的快速成型工艺采用EPS预发泡颗粒，利用定制型模具，在高温高压条件下快速发泡联结成型，并通过快速冷却制得高密度产品，制得的整体产品硬度高，其硬度可达到邵A80-90°，比现有技术中的聚苯乙烯产品硬度高出50％以上，并且强度也可以明显提升50％。
根据本发明的实施例已对本发明进行了说明性而非限制性的描述，但应理解，在不脱离由权利要求所限定的相关保护范围的情况下，本领域的技术人员可以做出变更和/或修改。

Claims (1)

1.一种发泡制品的快速成型工艺，工艺如下：
(1)采用一特制的密闭性模具，在模具内铺洒适当水量；
(2)合上上下模并压实，保持内部密封环境，加温后形成高温高压环境；
(3)从模具一侧真空抽入EPS发泡颗粒，填实模具内部；
(4)在150℃以上加热数分钟，利用水汽化成水蒸气使EPS颗粒发泡胀大并联结在一起；
(5)加热时间到达后迅速冷却，使成型制品立刻定型。
CN202010620021.9A 2020-06-30 2020-06-30 一种发泡制品的快速成型工艺 Pending CN111633901A (zh)

Priority Applications (1)

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CN202010620021.9A CN111633901A (zh) 2020-06-30 2020-06-30 一种发泡制品的快速成型工艺

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CN202010620021.9A CN111633901A (zh) 2020-06-30 2020-06-30 一种发泡制品的快速成型工艺

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103802259A (zh) * 2010-11-18 2014-05-21 张卫军 一种用泡沫塑料模具制造泡沫塑料的方法
CN108044858A (zh) * 2017-12-13 2018-05-18 南通市金马包装材料有限公司 一种eps泡沫制品及其生产工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103802259A (zh) * 2010-11-18 2014-05-21 张卫军 一种用泡沫塑料模具制造泡沫塑料的方法
CN108044858A (zh) * 2017-12-13 2018-05-18 南通市金马包装材料有限公司 一种eps泡沫制品及其生产工艺

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
《机械工程手册》编委会: "《塑料工程手册 下册》", 30 April 2000, 机械工业出版社 *
黄纲民: "引进可发性聚苯乙烯泡沫塑料成型机模压技术初探", 《广州化工》 *

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Application publication date: 20200908