KR960010212A - Injection molding method - Google Patents

Injection molding method Download PDF

Info

Publication number
KR960010212A
KR960010212A KR1019940021948A KR19940021948A KR960010212A KR 960010212 A KR960010212 A KR 960010212A KR 1019940021948 A KR1019940021948 A KR 1019940021948A KR 19940021948 A KR19940021948 A KR 19940021948A KR 960010212 A KR960010212 A KR 960010212A
Authority
KR
South Korea
Prior art keywords
mold
injection molding
molding method
resin
gate
Prior art date
Application number
KR1019940021948A
Other languages
Korean (ko)
Inventor
김재욱
Original Assignee
정몽원
만도기계 주식회사
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.)
Filing date
Publication date
Application filed by 정몽원, 만도기계 주식회사 filed Critical 정몽원
Priority to KR1019940021948A priority Critical patent/KR960010212A/en
Publication of KR960010212A publication Critical patent/KR960010212A/en

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

소정 두께를 구비한 물품을 성형시키기 위하여 본 발명은 상기 사출품의 두꺼운 부분을 중공형체로 성형시킬 수 있도록 용융 상태의 수지를 미충진 상태로 몰드에 주입시킨 후 상기 몰드에 소정 압력으로 불활성 가스를 주입시키는 단계를 포함하는 방법을 제공한다.In order to mold an article having a predetermined thickness, the present invention injects a molten resin into an unfilled mold so that a thick portion of the injection molded product can be formed into a hollow body, and then inert gas is applied to the mold at a predetermined pressure. It provides a method comprising the step of injecting.

Description

사출 성형 방법Injection molding method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 몰드 내부에 주입되어 있는 수지의 표면상에 함몰부가 형성되어 있는 것을 개략적으로 도시한 단면도,1 is a cross-sectional view schematically showing that the depression is formed on the surface of the resin injected into the conventional mold,

제2도는 종래의 사출 성형의 보압 공정중 각각의 위치에서의 압력 발생과 시간과의 관계를 개략적으로 나타낸 그래프,2 is a graph schematically showing the relationship between pressure generation and time at each position in the packing process of a conventional injection molding,

제3도는 본 발명에 따른 사출 성형 방법을 순차적으로 나타낸 흐름도.3 is a flow chart sequentially showing the injection molding method according to the present invention.

Claims (3)

소정 두께를 구비하고 있는 물품을 사출 성형시키기 위한 사출 성형 방법에 있어서, 필요로 하는 제품의 형태로 제작된 몰드의 내부에 게이트를 통해서 용융 상태의 수지를 미충진 상태로 주입시키는 단계와, 상기 몰드에 주입된 수지의 내부에 중공부가 형성될 수 있도록 가스를 상기 게이트를 통해서 상기 몰드에 주입시키는 단계와, 상기 몰드에 주입된 가스의 압력을 소정 시간동안 일정한 값에 유지시키는 단계와, 상기 몰드로부터 상기 게이트를 통해서 배출시키는 단계와, 상기 몰드의 게이트가 수지로 봉합되는 단계와, 그리고 상기 몰드의 내부에서 완전 냉각되어 필요로 하는 제품의 형태로 성형된 수지를 사출시키는 단계로 이루어지는 것을 특징으로 하는 사출 성형 방법.An injection molding method for injection molding an article having a predetermined thickness, comprising the steps of: injecting a resin in a molten state into an unfilled state through a gate into an inside of a mold manufactured in the form of a required product; Injecting a gas into the mold through the gate so as to form a hollow portion in the resin injected into the mold; maintaining a pressure of the gas injected into the mold at a constant value for a predetermined time; Discharging through the gate, sealing the gate of the mold with a resin, and injecting the molded resin into a shape of a required product by completely cooling the inside of the mold. Injection molding method. 제1항에 있어서, 상기 몰드에 미충진 상태로 주입되는 용융 수지의 양은 상기 몰드의 충진 상태의 약 50 내지 90%정도로 이루어져 있는 것을 특징으로 하는 사출 성형 방법.The injection molding method according to claim 1, wherein the amount of molten resin injected into the mold in an unfilled state is about 50 to 90% of the filled state of the mold. 제1항에 있어서, 상기 몰드에 주입되는 가스는 불활성 가스로 이루어져 있는 것을 특징으로 하는 사출성형 방법.The injection molding method according to claim 1, wherein the gas injected into the mold is made of an inert gas. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940021948A 1994-09-01 1994-09-01 Injection molding method KR960010212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940021948A KR960010212A (en) 1994-09-01 1994-09-01 Injection molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940021948A KR960010212A (en) 1994-09-01 1994-09-01 Injection molding method

Publications (1)

Publication Number Publication Date
KR960010212A true KR960010212A (en) 1996-04-20

Family

ID=66686628

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940021948A KR960010212A (en) 1994-09-01 1994-09-01 Injection molding method

Country Status (1)

Country Link
KR (1) KR960010212A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100330002B1 (en) * 1998-03-23 2002-08-08 삼성전자 주식회사 Method for charging wax

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100330002B1 (en) * 1998-03-23 2002-08-08 삼성전자 주식회사 Method for charging wax

Similar Documents

Publication Publication Date Title
CA2129009A1 (en) Injection molding of plastic article having hollow rib
MX166392B (en) PROCESS TO MOLD BY INJECTION AND ARTICLE OF PLASTIC HOLLOW, PRODUCED BY THE SAME
KR880012338A (en) Manufacturing method of synthetic resin molding with reinforcement wall structure
ATE193860T1 (en) INJECTION MOLDING PROCESS WITH OPPOSING CUTS
KR920016226A (en) Method of Manufacturing Blow Molded Products
CA2065856A1 (en) Method for the use of gas assistance in the molding of plastic articles
HK1044311A1 (en) Process and apparatus for manufacturing a thermoplastic part with an injected elastomer seal
KR920021293A (en) Handle shaped article, injection molding method and mold
KR960017097A (en) Injection mold
KR880006028A (en) Disc injection molding method
KR970706114A (en) The present invention relates to an improved injection molding method for producing a hollow resin molded body and a mold for use in the method (Improved injection molding method for producing hollow articles,
CA2146557A1 (en) Method of and a mold for injection molding of articles made of a thermoplastic material and the walls of which enclose a hollow space
KR900007345B1 (en) Injection molding method
KR970025908A (en) Manufacturing method of synthetic resin molded article
TW347359B (en) Method for manufacturing a sealing element and a sealing element manufactured in accordance with the method
KR970025912A (en) Manufacturing method of synthetic resin bumper for automobile
KR960010212A (en) Injection molding method
KR970013463A (en) Sealed gasket for battery and method of manufacturing the same
CA2033338A1 (en) Injection-molding dimension-control and clamp-reduction
JPH01168425A (en) Manufacture of hollow molded article
KR950013679A (en) Double injection molding method made of transparent resin and opaque or colored resin and molded products
JPH05116194A (en) Injection mold and injection method used thereof
JPH0453169B2 (en)
JPS54111557A (en) Hollow molded article having integrated internal ribs, and method for forming the same
JPS56121745A (en) Foaming resin injection molding method

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application