KR100432545B1 - sleeve for optical fiber connector and the manufacture method - Google Patents
sleeve for optical fiber connector and the manufacture method Download PDFInfo
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- KR100432545B1 KR100432545B1 KR10-2002-0025174A KR20020025174A KR100432545B1 KR 100432545 B1 KR100432545 B1 KR 100432545B1 KR 20020025174 A KR20020025174 A KR 20020025174A KR 100432545 B1 KR100432545 B1 KR 100432545B1
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- base material
- density
- optical fiber
- fiber connector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
- B29D11/0075—Connectors for light guides
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
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- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
본 발명은 광섬유 커넥터용 슬리브 및 그 제조방법에 관한 것으로 좀 더 상세하게는 지르코니아를 주성분으로 제조하는 슬리브의 전체적인 밀도를 고르게 하여 슬리브의 변형을 최소화시킬 수 있도록 하려는 것이다.The present invention relates to a sleeve for an optical fiber connector and a method of manufacturing the same, and more particularly, to equalize the overall density of a sleeve made of zirconia as a main component so as to minimize deformation of the sleeve.
상기와 같이 하기 위하여 지르코니아(Zirconic)를 주성분으로 하는 원료를 혼합할 때 좀 더 많은 량의 파라핀왁스(Paraffin Wax)를 첨가하여 저점도의 원료를 제공하고 또, 슬리브모재를 사출성형할 때 좀 더 길게 형성하며, 고밀도의 선단부와 저밀도의 끝부분을 종래보다 더 많이 절단하여 비교적 밀도차이가 작은 가운데부분을 슬리브로 제공하는 것이다.In order to do the above, when mixing raw materials containing zirconia as a main ingredient, a larger amount of paraffin wax is added to provide a low viscosity raw material, and when injection molding a sleeve base material, It is formed to be long, and the tip of the high density and the tip of the low density are cut more than conventional to provide the center portion with a relatively small difference in density as a sleeve.
이상과 같은 방법으로 제조된 슬리브는 저점도의 원료로 사출성형하고 또, 상기의 원료를 이용하여 오버플로어가 길게 형성된 금형으로 슬리브모재를 길게 사출성형하며, 고밀도의 선단부와 저밀도의 끝부분을 절단하고, 비교적 밀도차이가 작은 가운데부분으로 슬리브를 제조하여 변형을 줄여 줌으로써 슬리브 전장으로 테이퍼가 없는 스트레이트 상태의 슬리브를 제공할 수 있는 효과가 있고, 이러한 슬리브를 제공하여 광섬유 커넥터용 슬리브로 사용함으로써 광 통신분야에 기술을 향상시키는 효과가 있는 매우 유익한 발명이다.The sleeve manufactured by the above method is injection molded with a low viscosity raw material, and the sleeve base material is injection molded with a long mold using the above raw material, and a high density tip and a low density end are cut. In addition, by manufacturing the sleeve in the middle part with a relatively small difference in density to reduce the deformation, it is effective to provide a tapered straight sleeve to the sleeve length, and by providing such a sleeve as a sleeve for an optical fiber connector It is a very advantageous invention with the effect of improving the technology in the communication field.
Description
본 발명은 광섬유 커넥터용 슬리브 및 그 제조방법에 관한 것으로 좀 더 상세하게는 지르코니아를 주성분으로 제조하는 슬리브의 전체적인 밀도를 고르게 하여 슬리브의 변형을 최소화시킬 수 있도록 한 것이다.The present invention relates to a sleeve for an optical fiber connector and a method for manufacturing the same, and more particularly, to equalize the overall density of a sleeve made of zirconia as a main component, thereby minimizing deformation of the sleeve.
일반적으로 빛을 이용하여 데이터를 전송하는 광 통신에는 광섬유를 서로 연결하기 위한 광 페룰 및 슬리브가 있다.In general, optical communication using light to transmit data includes optical ferrules and sleeves for connecting optical fibers to each other.
상기와 같은 광 페룰과 슬리브는 기후나 온도변화에 강한 지르코니아를 주성분으로 사출성형하고 탈지, 소성가공을 통하여 생산하는 것이며, 슬리브는 전장(길이방향)으로 테이퍼가 생기지않고 스트레이트 상태의 원통형상이 유지되도록 하는 것이 가장 중요하다.The optical ferrule and sleeve as described above are produced by injection molding with zirconia, which is resistant to climate or temperature changes, and degreasing and plastic processing, so that the sleeve does not have taper in the full length (length direction) and maintains a straight cylindrical shape. It is the most important thing to do.
상기와 같은 슬리브를 생산하기 위해서는 사출성형하는 슬리브모재의 밀도차이를 줄여주는 것이 중요하다.In order to produce such a sleeve, it is important to reduce the density difference of the sleeve base material to be injection molded.
종래 상기와 같은 지르코니아를 주성분으로 하는 슬리브의 제조방법을 살펴보면 먼저, 지르코니아와 고분자계의 고점도를 갖는 바인더를 혼합하여 펠레타이징(Pelletizing)한다.Looking at the conventional manufacturing method of the sleeve containing the main zirconia as described above, first, the zirconia and the high viscosity of the polymer-based binder is mixed (Pelletizing).
상기의 과정으로 생성된 펠렛을 150도 이상의 고온으로 사출성형함으로써 얻어진 슬리브모재에 열을 가하여 바인더를 연소시킨다음, 소결하여 지르코니아 입자를 치밀화시켜 소정의 규격으로 가공하는 것이다.The pellet produced by the above process is injected into a sleeve base material obtained by injection molding at a high temperature of 150 degrees or more to burn the binder, and then sintered to densify the zirconia particles and process it to a predetermined standard.
상기와 같은 슬리브모재를 제조하기 위한 원료를 구체적으로 살펴 보면 지르코니아와 여기에 폴리에칠렌, 에틸렌비닐아세테이트, 파리핀왁스, 가나우바왁스, 스테아르산이 혼합되는데 그 비율이 고점도를 갖도록 되어 있다.Looking specifically at the raw material for manufacturing the sleeve base material as described above is mixed with zirconia and polyethylene, ethylene vinyl acetate, paraffin wax, Ganauba wax, stearic acid, the ratio is to have a high viscosity.
이와 같이 고점도를 갖는 원료로 슬리브모재를 사출성형하게 되면 원료의 유동성이 부족하여 원료가 금형의 끝부분까지 원만하게 유입되지 않는다.As such, when the sleeve base material is injection-molded with a raw material having a high viscosity, the fluidity of the raw material is insufficient and the raw material does not smoothly flow to the end of the mold.
상기와 같은 현상으로 인하여 금형에서 사출성형되는 슬리브모재는 끝부분과선단부 상간에 밀도의 차이가 크게 형성되기 때문에 소결과정에서 찌그러짐, 타원 등 변형이 극심하게 된다.Due to the phenomena as described above, since the difference in density is largely formed between the end portion and the tip portion of the sleeve base material injection-molded in the mold, the deformation such as crushing and ellipse in the sintering process is severe.
또한, 슬리브모재를 사출성형하는 금형의 구성에서 코어 및 오버플로어의 길이는 슬리브모재가 소결된 후, 슬리브 길이에서 연마하고자 하는 길이를 더한 정도로 짧게 형성되어 있다.In addition, the length of the core and the overflow in the configuration of the mold for injection molding the sleeve base material is formed to be short enough to add the length to be polished in the sleeve length after the sleeve base material is sintered.
상기와 같이 금형을 구성하는 코어 및 오버플로어의 길이가 짧으면 슬리브모재를 사출성형할 때 사용되는 소재를 절감할 수 있으나 길이가 짧은만큼 전장(길이방향)으로 테이퍼가 심하게 형성된다.As described above, if the length of the core and the overflow forming the mold is short, the material used for injection molding the sleeve base material may be reduced, but the taper is severely formed in the full length (length direction) by the short length.
또한, 슬리브모재의 양쪽단부만 연마하고 나머지 전부를 사용하여 슬리브를 제조하였기 때문에 앞에서 설명한 것과 같이 고점도의 원료를 이용하여 슬리브모재를 사출성형함으로써 유동성 부족으로 파생되었던 슬리브모재의 끝부분과 선단부 상간에 밀도 차이를 극복할 수 없으므로 슬리브의 품질을 저하시키게 되는 문제점이 있었다.In addition, since the sleeve was manufactured using only the both ends of the sleeve base material and the rest of the sleeve base material, as described above, the sleeve base material was injection molded using the high-viscosity raw material, and thus, between the end portion and the top end of the sleeve base material derived from the lack of fluidity. There is a problem in that the quality of the sleeve is deteriorated because the density difference cannot be overcome.
상기한 문제점을 해결하기 위한 본 발명은 지르코니아에 혼합되는 파라핀왁스의 혼합비를 높여 저점도의 원료를 얻고, 금형을 구성하는 코어와 오버플로어를 길게 형성하여 슬리브모재의 길이를 길게 사출성형하고 상기의 슬리브모재를 소결한 후, 저밀도의 끝부분과 고밀도의 선단부를 소정의 길이로 절단하여 비교적 밀도 차이가 작은 가운데 부분만을 슬리브로 사용할 수 있게 함으로써 보다 더 품질이 우수한 슬리브를 제공하는데 소기의 목적하는 바가 있다.The present invention for solving the above problems is to increase the mixing ratio of paraffin wax mixed with zirconia to obtain a low viscosity raw material, to form the core and the overflow forming the mold to lengthen the length of the sleeve base material injection molding and the After sintering the sleeve base material, the low density end portion and the high density end portion are cut to a predetermined length so that only the middle portion having a relatively small difference in density can be used as the sleeve. have.
도 1은 종래 슬리브의 제조방법에 대한 흐름도1 is a flow chart for a method of manufacturing a conventional sleeve
도 2는 종래 방법에 의해 소결된 슬리브의 절단위치를 보인 정면도Figure 2 is a front view showing the cutting position of the sintered sleeve by the conventional method
도 3은 본 발명에 의한 슬리브의 제조방법에 대한 흐름도3 is a flow chart of a method for manufacturing a sleeve according to the present invention.
도 4는 본 발명에 따른 슬리브모재의 사출상태를 보인 정면도Figure 4 is a front view showing the injection state of the sleeve base material according to the present invention
도 5는 본 발명에 의해 소결된 슬리브의 절단위치를 보인 정면도Figure 5 is a front view showing a cutting position of the sleeve sintered by the present invention
***도면의 주요부분에 대한 부호의 설명****** Explanation of symbols for main parts of drawing ***
1: 슬리브모재1: sleeve base material
2: 오버플로어2: overflow
3: 슬리브3: sleeve
본 발명의 광섬유 커넥터용 슬리브 및 그 제조방법을 이하 부수되는 도면과 관련하여 상세하게 설명하면 다음과 같다.Hereinafter, a sleeve for an optical fiber connector of the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings.
도 3은 본 발명에 의한 슬리브의 제조방법에 대한 흐름도로서, 지르코니아 등의 원료를 혼합 및 분쇄(펠레타이징), 사출, 탈지, 소성, 고밀도 및 저밀도부분의 절단하고, 센타레이스 및 단면가공을 통해 슬리브를 생산하는 공정을 표시한 것이다.Figure 3 is a flow chart of the sleeve manufacturing method according to the present invention, the raw material, such as zirconia mixing and grinding (pelletizing), injection, degreasing, firing, cutting of the high density and low density parts, the center race and cross-sectional processing The process of producing a sleeve is shown.
제 1공정1st process
먼저, 중량비 82-83%의 지르코니아(Zirconic), 중량비 2-3%의 폴리에틸렌(Polyethylenc), 중량비 4-5%의 에틸렌비닐아세테이트(Ethylene Vinyl Acetate), 중량비 8-9%의 파라핀왁스(Paraffin Wax), 중량비 0.5-1%의 가나우바왁스(Carnauva Wax), 중량비 0.5-1%의 스테아르산(Stearic Acid)를 가압혼합하여 펠레타이징한다.First, Zirconic in 82-83% by weight, Polyethyleneenc in 2-3% by weight, Ethylene Vinyl Acetate in 4-5% by weight, Paraffin Wax in 8-9% by weight ), Pressure ratio 0.5-1% of Carnauva Wax, and 0.5-1% of stearic acid (Stearic Acid) by pressure mixing to pelletize.
상기에서 파라핀왁스(Paraffin Wax)를 더 많이 첨가함으로써 저점도를 유지시키는 것이 특징이다.It is characterized by maintaining a low viscosity by adding more paraffin wax (Paraffin Wax) in the above.
제 2공정2nd process
상기의 1공정에서 형성된 저점도의 펠렛을 금형에 공급하여 슬리브모재(1)를 사출성형하는데 상기 슬리브모재(1)를 사출성형하기 위한 금형은 도 4에 도시한 것과 같이 오버플로어(2)를 길게 구성하는 것이 특징이다.The low-viscosity pellets formed in step 1 are supplied to the mold to inject the sleeve base material 1, and the mold for injection molding the sleeve base material 1 has an overflow 2 as shown in FIG. It is characterized by a long configuration.
제 3공정3rd process
상기의 2공정으로 사출성형된 슬리브모재(1)에 첨가하였던 물질들을 400-600도 정도로 24-74시간 태워서 탈지하는 것으로 일반적인 것이다.The material added to the sleeve base material 1 injection-molded in the above two processes is generally degreased by burning for 24-74 hours at 400-600 degrees.
제 4공정4th process
상기의 3공정으로 탈지과정을 마친 슬리브모재를 1300-1500도 정도로 소성하여 제품을 치밀화시키는 것으로 일반적인 것이다.It is common to densify the product by firing the sleeve base material after the degreasing process in the above three steps to about 1300-1500 degrees.
제 5공정5th process
상기의 4공정으로 소성가공된 슬리브모재는 사출성형과정에서 형성될 수밖에 없는 선단부의 고밀도와 끝부분의 저밀도부분을 절단하고, 밀도차이가 비교적 작은 가운데부분만을 사용하여 슬리브(3)를 생산하는 것이다.(도 5참조)The sleeve base material plastically processed by the above four processes is to cut the high density of the tip portion and the low density portion of the tip portion, which are inevitably formed in the injection molding process, and produce the sleeve 3 using only the middle portion having a relatively small density difference. (See Figure 5)
상기 1공정과 같이 지르코니아(Zirconic), 폴리에틸렌(Polyethylenc), 에틸렌비닐아세테이트(Ethylene Vinyl Acetate), 파라핀왁스(Paraffin Wax), 가나우바왁스(Carnauva Wax), 스테아르산(Stearic Acid)를 혼합하여 원료를 제공하는 과정에서 특히, 파라핀왁스(Paraffin Wax)를 더 많이 첨가함으로써 원료를 저점도를 유지시켜 금형으로 사출성형할 때 유동성을 향상시킨다.The raw material is mixed by zirconia (Zirconic), polyethylene (Polyethylenc), ethylene vinyl acetate (Ethylene Vinyl Acetate), paraffin wax (Carnauva Wax), stearic acid (Stearic Acid) as in step 1 In the process of providing, in particular, by adding more paraffin wax (wax) to maintain the low viscosity of the raw material to improve the fluidity when injection molding into the mold.
그러면 원료의 유동성이 좋기 때문에 금형의 끝부분까지 원료가 원활하게 공급되므로 사출성형되는 슬리브모재의 선단부와 끝부분이 전체적으로 밀도차이를 줄일 수 있게 되는 것이다.Then, the raw material is smoothly supplied to the end of the mold because the fluidity of the raw material is good, so that the front end and the end of the injection molding sleeve base material can reduce the overall density difference.
또한, 슬리브모재(1)를 사출성형하기 위한 금형의 오버플로어(2)를 길게 구성하여 슬리브모재를 길게 사출성형함으로써 슬리브의 전장(길이방향)으로 테이퍼를 최소화시킬 수 있고 또, 사출성형된 슬리브모재의 밀도차이를 극소화시키며, 사출하는 과정에서 고밀도가 될 수밖에 없는 선단부와, 저밀도가 될 수 밖에 없는 끝부분을 절단하고 가운데 부분만을 이용하여 센타레스 및 단면가공으로 슬리브를 생산함으로써 밀도차이가 비교적 작은 부분으로 슬리브를 제공할 수 있다.In addition, by lengthening the overflow 2 of the mold for injection molding the sleeve base material (1) by long injection molding the sleeve base material can minimize the taper in the full length (length direction) of the sleeve, and the injection molded sleeve The density difference is minimized by minimizing the density difference between the base materials and cutting the tip part that must be high density during injection, the end part that can be low density, and producing the sleeve by centerless and cross-section processing using only the middle part. The sleeve can be provided in a small portion.
이상과 같은 방법으로 제조된 슬리브는 저점도의 원료로 사출성형하고 또, 상기의 원료를 이용하여 오버플로어가 길게 형성된 금형으로 슬리브모재를 길게 사출성형하며, 고밀도의 선단부와 저밀도의 끝부분을 절단하고, 비교적 밀도차이가 작은 가운데부분으로 슬리브를 제조하여 변형을 줄여 줌으로써 슬리브 전장으로 테이퍼가 없는 스트레이트 상태의 슬리브를 제공할 수 있는 효과가 있고, 이러한 슬리브를 제공하여 광섬유 커넥터용 슬리브로 사용함으로써 광 통신분야에 기술을 향상시키는 효과가 있는 매우 유익한 발명이다.The sleeve manufactured by the above method is injection molded with a low viscosity raw material, and the sleeve base material is injection molded with a long mold using the above raw material, and a high density tip and a low density end are cut. In addition, by manufacturing the sleeve in the middle part with a relatively small difference in density to reduce the deformation, it is effective to provide a tapered straight sleeve to the sleeve length, and by providing such a sleeve as a sleeve for an optical fiber connector It is a very advantageous invention with the effect of improving the technology in the communication field.
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| KR10-2002-0025174A KR100432545B1 (en) | 2002-05-08 | 2002-05-08 | sleeve for optical fiber connector and the manufacture method |
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| KR10-2002-0025174A KR100432545B1 (en) | 2002-05-08 | 2002-05-08 | sleeve for optical fiber connector and the manufacture method |
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| KR20030087211A KR20030087211A (en) | 2003-11-14 |
| KR100432545B1 true KR100432545B1 (en) | 2004-05-24 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10330162A (en) * | 1997-05-27 | 1998-12-15 | Kyocera Corp | Zirconia sintered compact, its production and member for optical connector using the same |
| JP2000301527A (en) * | 1999-04-01 | 2000-10-31 | Korea Research Inst Of Standards & Science | Manufacture of ceramic tube by centrifugal molding and manufactured ceramic tube |
| JP2001240468A (en) * | 2000-02-28 | 2001-09-04 | Kyocera Corp | Sintered body of zirconia for light connector and process for producing the same |
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2002
- 2002-05-08 KR KR10-2002-0025174A patent/KR100432545B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10330162A (en) * | 1997-05-27 | 1998-12-15 | Kyocera Corp | Zirconia sintered compact, its production and member for optical connector using the same |
| JP2000301527A (en) * | 1999-04-01 | 2000-10-31 | Korea Research Inst Of Standards & Science | Manufacture of ceramic tube by centrifugal molding and manufactured ceramic tube |
| JP2001240468A (en) * | 2000-02-28 | 2001-09-04 | Kyocera Corp | Sintered body of zirconia for light connector and process for producing the same |
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| KR20030087211A (en) | 2003-11-14 |
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