KR20020073066A - Overmolding composition for noise reduction of in-manifold of vehicle - Google Patents
Overmolding composition for noise reduction of in-manifold of vehicle Download PDFInfo
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- KR20020073066A KR20020073066A KR1020010013251A KR20010013251A KR20020073066A KR 20020073066 A KR20020073066 A KR 20020073066A KR 1020010013251 A KR1020010013251 A KR 1020010013251A KR 20010013251 A KR20010013251 A KR 20010013251A KR 20020073066 A KR20020073066 A KR 20020073066A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
-
- 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
- B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
- B29C33/0044—Moulds or cores; Details thereof or accessories therefor with sealing means or the like for sealing off parts of inserts projecting into the mould cavity
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
본 발명은 자동차용 흡기 매니폴드의 소음저감을 위한 오버몰딩(overmolding) 조성물에 관한 것으로서, 더욱 상세하게는 디메틸테레프탈레이트, 1,4-부탄디올, 폴리테트라메틸글리콜을 사용하여 종래 흡기 매니폴드에 오버몰딩하여 공기유입부의 두께를 늘림으로써, 공기유입시 소음이 차량내부에 전달되는 것을 방지하여 운전자의 운전환경이 향상된 자동차용 흡기 매니폴드의 소음저감을 위한 오버몰딩 조성물에 관한 것이다.The present invention relates to an overmolding composition for reducing noise of an intake manifold for automobiles, and more particularly, to a conventional intake manifold using dimethyl terephthalate, 1,4-butanediol, and polytetramethylglycol. By molding and increasing the thickness of the air inlet, the present invention relates to an overmolding composition for reducing noise of an intake manifold for an automobile in which a driving environment of a driver is prevented from being transmitted to the inside of a vehicle during an air inflow.
엔진 흡입 시스템에서 공기유입 및 조절 등의 역할을 하는 흡기 매니폴드의 재질이 플라스틱으로 적용되고 있으며, 이 플라스틱 재질은 공기유입시 소음이 차량내부에 전달되어 NVH(Noise-Vibration-Harnish)가 Al사양보다 좋지 않은 것으로 알려지고 있다.The material of the intake manifold, which plays the role of air inflow and control in the engine intake system, is applied to the plastic.In this plastic material, noise is transmitted to the inside of the vehicle when the air inflow, and NVH (Noise-Vibration-Harnish) is Al specification. It is said to be worse.
특히 NYLON66재질의 소음문제는 재질특성상 저RPM에서 투과음(transmission noise)이 존재함으로서 Al보다 전체적인 평균소음은 좋으나 자동차의 소음특성상저RPM은 운전자의 가청구역에 있으므로 자동차 품질과 밀접한 관계를 이루고 있으며 해결을 해야 할 숙제로 안고 있다. 이러한 문제점의 해결방법은 제품의 두께를 키우는 방법이 있으나 엔진부품의 LAYOUT상 현실화하기 쉽지 않고, 완벽한 소음제거(1 ∼ 1.5 dB : 오차범위)가 되지 않는다.In particular, the noise problem of NYLON66 material is transmission noise at low RPM due to the characteristics of the material, so the overall average noise is better than Al. I have a homework to do. The solution to this problem is to increase the thickness of the product, but it is not easy to realize in the layout of the engine parts, it is not a perfect noise reduction (1 ~ 1.5 dB: error range).
이에, 본 발명자들은 상기 문제점을 해결하기 위하여 연구 노력한 결과, 공기흡입시 소음발생이 보다 적은 새로운 자동차용 흡기 매니폴드의 소음저감을 위한 오버몰딩 조성물을 개발함으로써 본 발명을 완성하였다.Accordingly, the present inventors have completed the present invention by developing an overmolding composition for reducing the noise of a new intake manifold for automobiles with less noise during air intake as a result of research efforts.
따라서, 본 발명은 디메틸테레프탈레이트, 1,4-부탄디올, 폴리테트라메틸글리콜을 사용하여 종래 흡기 매니폴드(intake manifold)에 오버몰딩(overmolding)하여 공기유입부(surge tank)의 두께를 늘림으로써, 공기유입시 소음이 차량내부에 전달되는 것을 방지하여 운전자의 운전환경이 향상된 자동차용 흡기 매니폴드의 소음저감을 위한 오버몰딩 조성물을 제공하는데 그 목적이 있다.Accordingly, the present invention by overmolding the conventional intake manifold using dimethyl terephthalate, 1,4-butanediol, polytetramethylglycol to increase the thickness of the surge tank, It is an object of the present invention to provide an overmolding composition for reducing noise of an intake manifold for an automobile in which noise is transmitted to the inside of a vehicle by preventing noise from being introduced into the vehicle.
본 발명은 디메틸테레프탈레이트 30 ∼ 40 중량%, 1,4-부탄디올 20 ∼ 30 중량%, 폴리테트라메틸글리콜 20 ∼ 30 중량%로 이루어진 오버몰딩 조성물을 그 특징으로 한다.The present invention is characterized by an overmolding composition consisting of 30 to 40% by weight of dimethyl terephthalate, 20 to 30% by weight of 1,4-butanediol, and 20 to 30% by weight of polytetramethylglycol.
이와 같은 본 발명을 더욱 상세히 설명하면 다음과 같다.Referring to the present invention in more detail as follows.
본 발명에 사용하는 디메틸테레프탈레이트는 30 ~ 40 중량% 함유하는 것이 바람직하며, 더욱 바람직하게는 40 중량% 함유하는 것이 좋다. 만일 디메틸텔프탈레이트가 중량30% 미만이면 소음효과가 떨어지는 문제가 있고, 40중량% 보다 과량이면 사출시 문제가 있다.It is preferable to contain 30-40 weight% of dimethyl terephthalates used for this invention, More preferably, it is preferable to contain 40 weight%. If the dimethyltelphthalate is less than 30% by weight, there is a problem that the noise effect is lowered, and if it is more than 40% by weight, there is a problem in injection.
1,4-부탄디올은 20 ~ 30중량%를 함유하는 것이 바람직하며, 더욱 바람직하게는 30 중량% 함유하는 것이 좋다. 만일 20중량% 미만이면 제조적인(합성)것에 문제가 있고, 중량30% 보다 과량이면 사출시 문제가 있다.It is preferable that 1, 4- butanediol contains 20 to 30 weight%, More preferably, it contains 30 weight%. If it is less than 20% by weight, there is a problem in manufacturing (synthesis), and in excess of 30% by weight, there is a problem in injection.
폴리테트라메틸글리콜은 20 ∼ 30중량% 함유하는 것이 바람직하며, 더욱 바람직하게는 30 중량% 함유하는 것이 좋다. 만일 30 중량% 미만이면 소음효과가 미미하며, 중량30% 보다 과량이면 제조시 문제가 있다.It is preferable to contain 20 to 30 weight% of polytetramethylglycol, More preferably, it is preferable to contain 30 weight%. If it is less than 30% by weight, the noise effect is insignificant, and if it is more than 30% by weight, there is a problem in manufacturing.
본 발명에 따른 오버몰딩 조성물을 사용하여 기존 흡기 매니폴드 성형품의 두께를 늘리는 방법으로는 기존품의 공기유입부분의 형상을 금형제작하여 제품을 삽입 사출하는 방법을 사용할 수 있다.As a method of increasing the thickness of an existing intake manifold molded product using the overmolding composition according to the present invention, a method of inserting a product by manufacturing a mold of an air inlet portion of the existing product may be used.
이하, 본 발명을 다음의 실시예에 의거하여 더욱 상세하게 설명하겠는바, 본 발명이 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail based on the following examples, but the present invention is not limited by the examples.
실시예 1.Example 1.
디메틸테레프탈레이트 40중량%, 1,4-부탄디올 30중량%, 폴리테트라메틸글리콜 30중량%를 혼합하여 수십시간 동안 오버몰딩 조성물을 제조하였다.Overmolding composition was prepared for several ten hours by mixing 40% by weight of dimethyl terephthalate, 30% by weight of 1,4-butanediol, and 30% by weight of polytetramethylglycol.
실시예 2.Example 2.
Hytrel[듀퐁사], EFE7276, Minlon 수지에 본 발명에 따른 실시예 1의 오버몰딩 조성물을 포말(foaming)하여 시편을 제조하였다.A specimen was prepared by foaming the overmolding composition of Example 1 according to the present invention on Hytrel (Dupont), EFE7276, and Minlon resin.
시험예.Test example.
실시예 2에서 제조한 시편을 사용하여 소음측정-시험방법(HMC MS규격시험방법)을 통해 투과소음을 측정하고, 그 결과를 다음 표 1에 나타내었다.Using the specimen prepared in Example 2, the transmission noise was measured by the noise measurement-test method (HMC MS standard test method), and the results are shown in Table 1 below.
상술한 바와 같이, 본 발명에 따른 오버몰딩 조성물을 사용하여 공기유입부의 두께를 늘려 소음차단효과를 가짐으로써 소음이 차량내부에 전달되는 것을 방지하여 운전자에게 편리한 효과가 있다.As described above, by using the overmolding composition according to the present invention to increase the thickness of the air inlet portion to have a noise blocking effect, the noise is prevented from being transferred to the inside of the vehicle, thereby providing a convenient effect for the driver.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010013251A KR20020073066A (en) | 2001-03-14 | 2001-03-14 | Overmolding composition for noise reduction of in-manifold of vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020010013251A KR20020073066A (en) | 2001-03-14 | 2001-03-14 | Overmolding composition for noise reduction of in-manifold of vehicle |
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| Publication Number | Publication Date |
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| KR20020073066A true KR20020073066A (en) | 2002-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020010013251A KR20020073066A (en) | 2001-03-14 | 2001-03-14 | Overmolding composition for noise reduction of in-manifold of vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100448126B1 (en) * | 2001-12-19 | 2004-09-10 | 현대자동차주식회사 | An overmolding composition for noise reduction of in-manifold of vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09241364A (en) * | 1996-03-06 | 1997-09-16 | Teijin Ltd | Rely part made of polyester elastomer |
| JPH11124444A (en) * | 1997-10-24 | 1999-05-11 | Toray Ind Inc | Sliding component consisting of polypropylene terephthalate resin |
| JPH11199763A (en) * | 1998-01-09 | 1999-07-27 | Teijin Ltd | Polyester resin composition and molding made therefrom |
-
2001
- 2001-03-14 KR KR1020010013251A patent/KR20020073066A/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09241364A (en) * | 1996-03-06 | 1997-09-16 | Teijin Ltd | Rely part made of polyester elastomer |
| JPH11124444A (en) * | 1997-10-24 | 1999-05-11 | Toray Ind Inc | Sliding component consisting of polypropylene terephthalate resin |
| JPH11199763A (en) * | 1998-01-09 | 1999-07-27 | Teijin Ltd | Polyester resin composition and molding made therefrom |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100448126B1 (en) * | 2001-12-19 | 2004-09-10 | 현대자동차주식회사 | An overmolding composition for noise reduction of in-manifold of vehicle |
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