KR850007402A - Extrusion molding method of thermoplastic resin rod - Google Patents

Extrusion molding method of thermoplastic resin rod Download PDF

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Publication number
KR850007402A
KR850007402A KR1019840002211A KR840002211A KR850007402A KR 850007402 A KR850007402 A KR 850007402A KR 1019840002211 A KR1019840002211 A KR 1019840002211A KR 840002211 A KR840002211 A KR 840002211A KR 850007402 A KR850007402 A KR 850007402A
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KR
South Korea
Prior art keywords
diameter
extrusion
resin
molding
extruded
Prior art date
Application number
KR1019840002211A
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Korean (ko)
Other versions
KR890002117B1 (en
Inventor
김용재
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김용재
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 김용재 filed Critical 김용재
Priority to KR1019840002211A priority Critical patent/KR890002117B1/en
Publication of KR850007402A publication Critical patent/KR850007402A/en
Application granted granted Critical
Publication of KR890002117B1 publication Critical patent/KR890002117B1/en

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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • 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
    • B29L2031/06—Rods, e.g. connecting rods, rails, stakes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

내용 없음No content

Description

열가소성 수지봉의 압출성형방법Extrusion molding method of thermoplastic resin rod

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명 방법을 수행하기 위한 제1실시예 장치의 예시단면도. 제2도는 동 제2실시에의 부분단면도. 제3도는 제4도에서 보인 제3실시예에 의하여 성형된 관체의 단면도.1 is an exemplary cross-sectional view of a device of a first embodiment for carrying out the method of the present invention. 2 is a partial cross-sectional view of the second embodiment. 3 is a cross-sectional view of the tube formed by the third embodiment shown in FIG.

부호 설명Code Description

6:압출통로 7:압축다이 9:성형압출실 10:성형압출다이 12:냉각자켓 33:압출립 38:성형압출실 37:내부맨드릴.6: Extrusion passage 7: Compression die 9: Molding extrusion chamber 10: Molding extrusion die 12: Cooling jacket 33: Pressing extrusion 38: Molding extrusion chamber 37: Internal mandrel.

Claims (7)

유동상 수지원료를 압출하여 봉체상수지제품을 성형함에 있어서, 압출실린더내에서 스크류에 의하여 용융훈련되어 압출되는 압출물을 압축실린더내에서 적정한 수지압력이 유지되도록 실린더의 내경에 따라 직경이 설정되고 재료의 용융점도에 비례하는 길이를 갖는 미세한 압출통로를 통과시키고, 압출통로로부터 압출되는 압출물을 발산형의 천이부를 통하여 상류측직경이 최종제품의 직경과 일치하는 하류측직경보다 수지의 수축률을 감안하여 크게 한 성형압출다이로 압출하여 성형함을 특징으로 하는 열가소성 수지봉의 압출성형방법.In extruding the fluidized bed support material to form a bar-shaped resin product, the diameter is set according to the inner diameter of the cylinder so that the extrudate that is melt-trained and extruded by a screw in the extrusion cylinder is maintained in the compression cylinder. A fine extrusion passage having a length proportional to the melt viscosity of the material is passed through, and the extrudate extruded from the extrusion passage is passed through a diverging portion to reduce the shrinkage of the resin than the downstream diameter where the upstream diameter matches the diameter of the final product. In view of the above, an extrusion molding method of a thermoplastic resin rod, wherein the molding is performed by extruding with an enlarged molding extrusion die. 청구범위 1항에 있어서, 실린더의 내경에 따라 직경이 설정된 미세한 압출통로의 길이가 수지의 용융점도에 따라서 10~30배에 달하는 바의 방법.The method according to claim 1, wherein the length of the fine extrusion passage whose diameter is set according to the inner diameter of the cylinder reaches 10 to 30 times depending on the melt viscosity of the resin. 청구범위 1항에 있어서, 성형압출다이의 상류측직경이 봉상제품의 직경과 일치하는 하류측직경보다 수지의 수축률과 수지압력유지를 감안하여 크게 한 바의 방법.The method according to claim 1, wherein the upstream diameter of the molding extrusion die is made larger in view of the shrinkage ratio of the resin and the resin pressure retention than the downstream diameter of the rod-shaped product. 청구범위 1항에 있어서, 봉체상 수지제품의 단면형태가 원형, 다각형 또는 두꺼운 판상체형인 바의 방법.The method according to claim 1, wherein the cross-sectional shape of the rod-shaped resin product is round, polygonal or thick plate-shaped. 청구범위 1항에 있어서, 성형압출다이가 다단의 냉각자켓에 의하여 전부 또는 부분적으로 선택 냉각되는 바의 방법.The method of claim 1, wherein the forming extrusion die is selectively cooled in whole or in part by a multistage cooling jacket. 청구범위 1항~5항에 있어서, 성형압출다이가 발산형의 천이부 없이 직접 미세한 압출통로에 연결된 바의 방법.The method according to claims 1 to 5, wherein the molding extrusion die is connected directly to the fine extrusion passage without the divergent transition part. 청구범위 3항에 있어서, 성형압출다이가 환상의 압출립과 그 내측에 내부직경을 형성하는 내부맨드릴을 갖는 압출기에 연결되어 중공형의 관체가 압출되는 바의 방법.The method according to claim 3, wherein the shaping extrusion die is connected to an extruder having an annular extruded lip and an inner mandrel forming an inner diameter therein so that the hollow tube is extruded. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840002211A 1984-04-25 1984-04-25 Method of injection molding of resin pipe KR890002117B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019840002211A KR890002117B1 (en) 1984-04-25 1984-04-25 Method of injection molding of resin pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019840002211A KR890002117B1 (en) 1984-04-25 1984-04-25 Method of injection molding of resin pipe

Publications (2)

Publication Number Publication Date
KR850007402A true KR850007402A (en) 1985-12-04
KR890002117B1 KR890002117B1 (en) 1989-06-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840002211A KR890002117B1 (en) 1984-04-25 1984-04-25 Method of injection molding of resin pipe

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KR (1) KR890002117B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101251122B1 (en) * 2012-11-01 2013-04-05 (주) 삼정디씨피 Extrusion dies and pipes are made thereof

Also Published As

Publication number Publication date
KR890002117B1 (en) 1989-06-20

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