KR930017694A - 내열성 용기의 성형방법 - Google Patents
내열성 용기의 성형방법 Download PDFInfo
- Publication number
- KR930017694A KR930017694A KR1019930002997A KR930002997A KR930017694A KR 930017694 A KR930017694 A KR 930017694A KR 1019930002997 A KR1019930002997 A KR 1019930002997A KR 930002997 A KR930002997 A KR 930002997A KR 930017694 A KR930017694 A KR 930017694A
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- KR
- South Korea
- Prior art keywords
- heat
- molded article
- primary blow
- resistant container
- blow molded
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000000465 moulding Methods 0.000 title claims 5
- 238000000071 blow moulding Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 239000006260 foam Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/0261—Bottom construction
- B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6604—Thermal conditioning of the blown article
- B29C49/6605—Heating the article, e.g. for hot fill
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6418—Heating of preforms
- B29C49/642—Heating of preforms and shrinking of the preform
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
- B29C49/6445—Thermal conditioning of preforms characterised by temperature differential through the preform length
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6472—Heating or cooling preforms, parisons or blown articles in several stages
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
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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
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/02—Thermal shrinking
- B29C61/025—Thermal shrinking for the production of hollow or tubular articles
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
- B29C2049/2021—Inserts characterised by the material or type
- B29C2049/2047—Tubular inserts, e.g. tubes
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
- B29C2049/7864—Temperature of the mould
- B29C2049/78645—Temperature of the mould characterised by temperature values or ranges
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
- B29C2049/7868—Temperature of the articles
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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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
- B29C49/12—Stretching rods
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/18—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using several blowing steps
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/18—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using several blowing steps
- B29C49/1802—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using several blowing steps the first mould cavity being bigger than a second mould cavity
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
- B29C49/4283—Deforming the finished article
- B29C49/42832—Moving or inverting sections, e.g. inverting bottom as vacuum panel
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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
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/02—Thermal shrinking
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- 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
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
- B29K2995/0017—Heat stable
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- 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/005—Oriented
- B29K2995/0053—Oriented bi-axially
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- 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
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
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- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/90—Direct application of fluid pressure differential to shape, reshape, i.e. distort, or sustain an article or preform and heat-setting, i.e. crystallizing of stretched or molecularly oriented portion thereof
- Y10S264/905—Direct application of fluid pressure differential to shape, reshape, i.e. distort, or sustain an article or preform and heat-setting, i.e. crystallizing of stretched or molecularly oriented portion thereof having plural, distinct differential fluid pressure shaping steps
- Y10S264/906—And heat-shrinking outside of mold including subsequent re-expanding of shrunken article using differential fluid pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Ceramic Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
본 발명은 내열성용기의 형성방법에 관한 것으로서, 히일부를 두꺼운 두께로 성형하고 내충격성을 향상시켜 안정된 자립성을 확보할 수 있는 내열성용기의 형성방법을 제공하는 것으로 안쪽으로 향하여 볼록하게 이루어진 윗바닥(46)을 바닥부(44)에 갖는 내열성 용기(40)를 성형하기 때문에 우선 프리폼(10)을 1차 블로우 성형하여 최종용기(40)보다도 적어도 종축길이가 긴 1차 블로우성형품(20)을 성형한다. 다음에 이 1차 블로우성형품(20)을 열수축시키고, 열수축된 용기(20)의 바닥부중심까지의 종축길이 H2가 최종용기(40)의 윗바닥(46)의 꼭대기부까지의 길이 H4보다도 긴 용기를 얻을 수 있다. 그 후 용기(30)를 바닥형틀(80c)을 갖는 2차 블로우캐비티형(80)내에 배치하고 바닥형틀(80c)을 종축방향으로 이동시키고, 용기(30)의 바닥부가 적어도 중심영역을 안쪽으로 향하게 볼록해진 형상으로 가공하고 최후에 2차 블로우캐비티(80)내에 용기(30)를 2차 블로우 성형하여 힐부(48)에 원하는 두께를 확보한 내열성용기를 얻을 수 있는 것을 특징으로 한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명을 적용한 제1실시예 방법에 각 주요 공정에 있어서 얻어진 성형품을 도시한 개략 설명도, 제2도는 프리폼의 사출 성형형의 단면도, 제3도는 1차 블로우 성형형의 개략 단면도, 제4도는 1차 블로우 성형품의 열 수축 공정을 설명하기 위한 개략 설명도, 제6도는 2차 블로우 캐비티(blow cavity)형내에서의 바닥형틀의 밀어올리는 구동을 표시한 개략 단면도, 제13(a)도 내지 제13(c)도는 각각 제2실시예 방법의 주요공정으로 얻어지는 성형품의 바닥부의 두께분포를 표시한 개략단면도, 제14도는 본 발명을 적용한 제3실시예방법의 냉각공정을 표시한 개략 설명도이다.
Claims (6)
- 안쪽으로 향하여 볼록하게 이루어진 윗바닥 형상을 바닥부에 갖는 내열성용기를 형성하는 방법에 있어서 사출 성형된 프리폼을 1차 블로우 캐비티형내에 1차 블로우 성형하여 최종 성형폼인 상기 내열성 용기 보다도 적어도 그 종축길이가 긴 1차 블로우 성형품을 성형하는 공정, 상기 1차 블로우 성형품을 열수축시키고, 이 열수축된 1차 블로우 성형품의 바닥 부 중심까지의 종축길이를, 상기 최종성형품인 용기의 상기 윗 바닥 꼭대기 까지의 길이 보다도 길게 하는 공정. 열수축된 1차 블로우 성형품을 종축방향으로 이동가능한 바닥형을 갖는 2차 블로우 캐비티형내로 배치하고, 상기 바닥형을 종축방향으로 이동시키고 열 수축된 상기 1차 블로우 성형품의 바닥부의 적어도 중심영역을 안쪽으로 향하여 볼록하게 이루어진 형상으로 가공하는 공정, 그후 상기 2차 블로우 캐비티형 내에 열 수축된 상기 1차 블로우 성형품을 성형하여 상기 내열성 용기를 얻는 공정을 포함하는 것을 특징으로 하는 내열성용기의 성형방법.
- 제1항에 있어서, 상기 열 수축공정에서는 종축방향의 수축을 규제하는 로드를 상기 1차 블로우 성형품내에 삽입하고, 그 로드선단을 열 수축된 상기 1차 블로우 성형품의 바닥부 내벽에 접촉시킨것을 특징으로 하는 내열성 용기의 성형방법.
- 제1항 또는 제2항에 있어서, 1차블로우 성형전에 프리폼의 표면온도를 85℃ 이상 100℃이하가 되도록 온도조절하는 공정을 갖는 것을 특징으로 하는 내열성용기의 성형방법.
- 제1항 또는 제2항에 있어서, 상기 1차 블로우 캐비티형은 가열수단을 내장하고 1차블로우 성형품을 70℃ 이상 80℃이하의 온도로 조절하는 것을 특징으로 하는 내열성용기의 성형방법.
- 내열성용기를 성형하는 방법에 있어서, 사출성형된 프리폼을 1차 블로우 캐비티형내에 1차 블로우 성형하여, 최종성형품인 상기 내열성 용기보다도 적어도 그 종축길이가 길고, 몸통부의 연신율과 비교하여 낮은 연신율의 저연신영역을 갖는 1차 블로우 성형품을 성형하는 공정, 상기 1차 블로우 성형품을 열수축시킨 공정, 열수축된 1차 블로우 성형품의 바닥부중, 상기 저연신영역을 냉각하는 공정, 2차 블로우 캐비티형내에 열수축된 또 상기 저연신영역이 냉각된 상기 1차 블로우성형품을 2차 블로우 성형하고 상기 1차 블로우 성형품에 형성된 상기 저연신영역의 확대가 적은 바닥부를 갖는 상기 내열성용기를 성형하는 공정을 포함하는 것을 특징으로하는 내열성용기의 성형방법.
- 제5항에 있어서, 상기 저연신영역의 냉각공정은 열수축된 1차 블로우성형품을 종축방향으로 이동가능한 바닥형을 갖는 2차 블로우 캐비티형내에 배치하고, 상기 바닥형을 종축방향으로 이동시키고, 열수축된 상기 1차 블로우 성형품의 바닥부가 적어도 상기 저연신영역을 안쪽으로 향하게 볼록해진 형상으로 가공하고, 상기 저연신영역을 2차 블로우 성형개시전에 상기 바닥형과 소정시간 접촉시켜 냉각하는 것을 특징으로하는 내열성용기의 형성방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7882092 | 1992-02-29 | ||
JP92-78820 | 1992-02-29 | ||
JP5034792A JPH0813498B2 (ja) | 1992-02-29 | 1993-01-29 | 耐熱性容器の成形方法 |
JP93-34792 | 1993-01-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930017694A true KR930017694A (ko) | 1993-09-20 |
KR960007290B1 KR960007290B1 (ko) | 1996-05-30 |
Family
ID=26373634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930002997A KR960007290B1 (ko) | 1992-02-29 | 1993-02-27 | 내열성 용기의 성형방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5389332A (ko) |
EP (1) | EP0559103B1 (ko) |
JP (1) | JPH0813498B2 (ko) |
KR (1) | KR960007290B1 (ko) |
DE (1) | DE69310416T2 (ko) |
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-
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- 1993-01-29 JP JP5034792A patent/JPH0813498B2/ja not_active Expired - Lifetime
- 1993-02-24 US US08/021,585 patent/US5389332A/en not_active Expired - Lifetime
- 1993-02-26 EP EP93103132A patent/EP0559103B1/en not_active Expired - Lifetime
- 1993-02-26 DE DE69310416T patent/DE69310416T2/de not_active Expired - Lifetime
- 1993-02-27 KR KR1019930002997A patent/KR960007290B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH0813498B2 (ja) | 1996-02-14 |
DE69310416T2 (de) | 1998-02-26 |
DE69310416D1 (de) | 1997-06-12 |
JPH06143392A (ja) | 1994-05-24 |
EP0559103A1 (en) | 1993-09-08 |
EP0559103B1 (en) | 1997-05-07 |
US5389332A (en) | 1995-02-14 |
KR960007290B1 (ko) | 1996-05-30 |
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