JPH02178354A - Lamp reflector made of synthetic resin - Google Patents
Lamp reflector made of synthetic resinInfo
- Publication number
- JPH02178354A JPH02178354A JP33371788A JP33371788A JPH02178354A JP H02178354 A JPH02178354 A JP H02178354A JP 33371788 A JP33371788 A JP 33371788A JP 33371788 A JP33371788 A JP 33371788A JP H02178354 A JPH02178354 A JP H02178354A
- Authority
- JP
- Japan
- Prior art keywords
- lamp reflector
- polyphenylene sulfide
- purity
- resin
- lamp
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 229920003002 synthetic resin Polymers 0.000 title claims description 9
- 239000000057 synthetic resin Substances 0.000 title claims description 9
- 239000004734 Polyphenylene sulfide Substances 0.000 claims abstract description 15
- 229920000069 polyphenylene sulfide Polymers 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 239000011342 resin composition Substances 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 9
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 12
- 238000010292 electrical insulation Methods 0.000 abstract description 5
- 230000020169 heat generation Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 235000019687 Lamb Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000007822 coupling agent Substances 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、劇場や競技場等の照明、或いは自動車のヘッ
ドライト等に用いられるランプリフレクタ−に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lamp reflector used for lighting in theaters, stadiums, etc., or automobile headlights.
従来、劇場等の照明、或いは自動車のヘッドライト等に
用いられるランプリフレクタ−にはΔρ材が多く使用さ
れている。しかし、Ａａによってランプリフレクタ−を
製造するには、圧延したＡａ板をプレス加工してランプ
リフレクタ−の形状に成形した後、反射面にΔｇを蒸善
し、さらにスポット溶接や、かしめ加工によってランプ
取付は部を固定する等の多くの工程を経て製造されるの
でコスト高となる。そのため、近年合成樹脂の一体成形
によってこれを製造することが試みられている。Conventionally, Δρ materials have been widely used in lamp reflectors used for lighting in theaters, automobile headlights, and the like. However, in order to manufacture a lamp reflector using Aa, after pressing a rolled Aa plate and forming it into the shape of a lamp reflector, Δg is vaporized on the reflective surface, and then spot welding or caulking is applied to the lamp. The mounting process involves many steps such as fixing the parts, so the cost is high. Therefore, in recent years, attempts have been made to manufacture them by integral molding of synthetic resin.
ところで一般に合成樹脂は、電気絶縁性に優れ、この点
では、電気製品の部品として適しているが、耐熱性、放
熱性が低く、ランプの発生する熱に耐え、かつ放散する
ことが出来ないため、発熱する照明器具には使用出来な
い致命的な欠点がある。By the way, synthetic resins generally have excellent electrical insulation properties, making them suitable as parts for electrical products, but they have low heat resistance and heat dissipation properties, and are unable to withstand and dissipate the heat generated by lamps. However, lighting equipment that generates heat has a fatal drawback that makes it unusable.
本発明者らは、上記の事情に鑑み、合成樹脂の有する成
形性を損うことなく、放熱性の優れた合成樹脂製ランプ
リフレクタ−を得べく鋭意研究しり結果、ポリフェニレ
ンスルフィド樹脂に純度の高い酸化マグネシウムを配合
すると、成形性をあまり低下させずに、熱伝導性の高い
樹脂組成物が得られることを知見した。In view of the above circumstances, the present inventors conducted extensive research to obtain a synthetic resin lamp reflector with excellent heat dissipation without impairing the moldability of the synthetic resin, and as a result, they found that polyphenylene sulfide resin has high purity It has been found that when magnesium oxide is blended, a resin composition with high thermal conductivity can be obtained without significantly reducing moldability.
本発明は上記の知見に基づいてなされたもので、合成樹
脂組成物によってつくられ、発熱量の大きい照明器具に
も使用出来るランプリフレクタ−を提供することを目的
とする。The present invention was made based on the above findings, and an object of the present invention is to provide a lamp reflector that is made of a synthetic resin composition and can be used in lighting equipment that generates a large amount of heat.
上記の目的を達成するため、本発明の合成飴１脂製ラン
プリフレクタ−は、ポリフェニレンスルフィド樹脂が１
０〜５０ｗｔ％、純度が９０％以上で、かつ平均粒径が
０．３〜５０μｍの酸化マグネ／ラムを９０〜５０ｗｔ
％含有する樹脂組成物を一体成形して得られる。In order to achieve the above object, the synthetic resin lamp reflector of the present invention is made of polyphenylene sulfide resin.
0 to 50 wt% of magne oxide/lamb with a purity of 90% or more and an average particle size of 0.3 to 50 μm.
It is obtained by integrally molding a resin composition containing %.
本発明に係る合成樹脂製ランフリフレクターは、上記の
構成となっているので、電気絶縁性で、成形性がよく、
放熱性に優れ、しかも安価で、劇場のスポットライト等
の強力な照明器具の部品として使用可能である。Since the synthetic resin lamp reflector according to the present invention has the above-mentioned structure, it has electrical insulation properties, good moldability,
It has excellent heat dissipation properties, is inexpensive, and can be used as a component of powerful lighting equipment such as theater spotlights.
本発明のランプリフレクタ−は、ポリフェニレンスルフ
ィド樹脂と酸化マグ不ンウムを主体とした成分を混練し
、ペレット化した樹脂組成物を一体成形して得られる。The lamp reflector of the present invention is obtained by integrally molding a pelletized resin composition by kneading components mainly consisting of polyphenylene sulfide resin and magnonium oxide.
成形法としては、加圧成形、射出成形等が用いられるが
、特に射出成形が好適である。As the molding method, pressure molding, injection molding, etc. are used, and injection molding is particularly suitable.
本発明において用いられるポリフェニレンスルフィドは
、特に制限されないが、分子量は数平均で１〜３万が好
ましい。The polyphenylene sulfide used in the present invention is not particularly limited, but the number average molecular weight is preferably 10,000 to 30,000.
本発明に用いられる酸化マグネ／ラムは９０％以上の純
度であることが必要で、特に９５％以上が好ましい。純
度が９０％未満の酸化マグネ／ラムを使用すると、樹脂
組成物の電気絶縁性が悪くなる。Magneto/Rum oxide used in the present invention must have a purity of 90% or more, particularly preferably 95% or more. If magne/ram oxide with a purity of less than 90% is used, the electrical insulation properties of the resin composition will deteriorate.
また、平均粒径は０３〜５０μｍ、特に好ましくは、２
〜２５μｍのものが用いられる。平均粒径ｈ＜０．３μ
ｍ未７５Ｗでは、ポリフェニレンスルフィド樹脂と混練
した場合、樹脂中に酸化マグネ／ラムを均一に分散させ
ることが困難となり、生産性が大幅に低下するばかりで
なく、得られる成形品の機械的強度が著しく低下する。Moreover, the average particle diameter is 03 to 50 μm, particularly preferably 2
~25 μm is used. Average particle size h<0.3μ
When using m-75W, when kneaded with polyphenylene sulfide resin, it becomes difficult to uniformly disperse magne/ram oxide in the resin, which not only significantly reduces productivity but also reduces the mechanical strength of the resulting molded product. Significantly decreased.
また平均粒径が５０μｍを越えると射出成形されたラン
プリフレクタ−の外観が悪くなり、反射面にＡｌ１を蒸
首してもむらになって、商品価値が損なわれる。If the average particle size exceeds 50 .mu.m, the appearance of the injection-molded lamp reflector will deteriorate, and even if Al1 is vaporized on the reflective surface, it will become uneven, impairing its commercial value.
また、上記組成物のポリフェニレンスルフィド樹脂と酸
化マグネシウムの配合割合は、ポリフェニレンスルフィ
ドｔ１５Ｊ脂カ１０〜５０ｗｔ％、酸化マグネ／ラムが
９０〜５０＊ｔ％で、特に、ポリフェニレンスルフィド
樹脂が１５〜３０ｗｔ％、酸化マグ不ンウムが８５〜７
Ｑｖｔ％の範囲が好ましい。The blending ratio of polyphenylene sulfide resin and magnesium oxide in the above composition is 10 to 50 wt% of polyphenylene sulfide t15J fat, 90 to 50*t% of magnesium/lamb oxide, and especially 15 to 30 wt% of polyphenylene sulfide resin. , magunium oxide is 85-7
A range of Qvt% is preferred.
酸化マグネシウムの配合割合が５０ｗｔ％未満では放熱
性の改善効果が充分でなく、９０ｖｔ％を越えると、得
られる成形品の強度が極端に低下して、ランプリフレク
タ−としての機能をはだすことか出来なくなるばかりで
なく、成形品の外観が極めて悪くなり、ランプリフレク
タ−としての価値が失なわれる。If the blending ratio of magnesium oxide is less than 50wt%, the effect of improving heat dissipation will not be sufficient, and if it exceeds 90wt%, the strength of the resulting molded product will be extremely reduced, and the function as a lamp reflector may be compromised. Not only will it fail, but the appearance of the molded product will become extremely poor, and its value as a lamp reflector will be lost.
本発明の成形に用いられる樹脂組成物は、上記のように
ポリフェニレンスルフィド樹脂および酸化マグネ／ラム
を主成分とするものであるが、さらに必要に応じて、一
般高分子加工分野で用いられている各種の添加剤を適宜
配合することが出来る。The resin composition used in the molding of the present invention is mainly composed of polyphenylene sulfide resin and magne/lamb oxide as described above, but if necessary, it may also contain a resin composition used in the general polymer processing field. Various additives can be appropriately blended.
上記添加剤とし−Ｃは、例えば全屈を含む無機物質、高
分子の接管性を高めるための各種カップリング剤、滑剤
、可塑剤、着色剤、酸化防止剤、紫外線吸収剤、核剤、
安定剤等があげられる。The above-mentioned additives -C include, for example, inorganic substances including total bending, various coupling agents for improving the tubing properties of polymers, lubricants, plasticizers, colorants, antioxidants, ultraviolet absorbers, nucleating agents,
Examples include stabilizers.
上記ポリフェニレンスルフィド樹脂、酸化マグネシウム
、および必要に応じて添加される各種添加剤は、通常用
いられている混合機、例えばヘンソエルミキサー タン
ブラ−リボンプレンター等によって混合される。この混
合物を通常の単軸、または２軸の押出機を用いて樹脂組
成物のベレットが製造される。 このペレットを用いて
、ランプリフレクタ−を成形するには、射出成形の場合
、３００〜３５０°Ｃ１特に３１０〜３３０°Ｃの温度
範囲で行なうのか好ましい。The polyphenylene sulfide resin, magnesium oxide, and various additives added as necessary are mixed using a commonly used mixer, such as a Hensoer mixer, tumbler-ribbon printer, or the like. A resin composition pellet is produced from this mixture using a conventional single-screw or twin-screw extruder. In order to mold a lamp reflector using this pellet, injection molding is preferably carried out at a temperature range of 300 to 350°C, particularly 310 to 330°C.
第１図は本発明のランプリフレクタ−の−例をｌＩＩい
た照明器具を示すもので図中ｎ号１はランフリフレクタ
−である。このランプリフレクタ−の基部にランプ２を
取付けるランプホルタ−３が固定され、照明器具４が構
成される。FIG. 1 shows a lighting fixture incorporating an example of the lamp reflector of the present invention, and in the figure, number n 1 is a lamp reflector. A lamp holder 3 for attaching the lamp 2 is fixed to the base of this lamp reflector, thereby forming a lighting fixture 4.
実施例１〜１２ 比較例１〜９
ポリフェニレンスルフィド樹脂の粒状ヘースボリマーと
して、トープレン株式会社装、′Ｆ−４（数平均分子量
約２万）を用い、酸化マグネシウムとしては、昭和電工
株式会社製の
（ａ）純度９８．７％、平均粒子径０．３ μｍ以下（
ｂ）純度９８．７％、平均粒子径４．０〜５．０μｍ（
Ｃ）純度９８７％、平均粒子径 １０．０〜１２．０μ
ｍ（ｄ）純度９８７％、平均粒子径４５〜５０μｍ（ｅ
）純度９８７％、平均粒子径７０μｍ以上および（「）
合成ドロマイトクリンカ−１純度７０％、平均粒子径４
０〜６．０μｍを用いた。Examples 1 to 12 Comparative Examples 1 to 9 As the granular haze polymer of polyphenylene sulfide resin, 'F-4 (number average molecular weight approximately 20,000) manufactured by Toprene Co., Ltd. was used, and as magnesium oxide, (manufactured by Showa Denko K.K.) was used. a) Purity 98.7%, average particle size 0.3 μm or less (
b) Purity 98.7%, average particle size 4.0-5.0 μm (
C) Purity 987%, average particle size 10.0-12.0μ
m(d) purity 987%, average particle size 45-50 μm (e
) Purity 987%, average particle size 70 μm or more and ('')
Synthetic dolomite clinker-1 purity 70%, average particle size 4
0 to 6.0 μm was used.
また添加剤°として７ランカツプリング削（γアミ／プ
ロピルトリエト手／ランＯＥ７本ユニカー抹式会社製、
カップリング剤Ａｌ１００）を用いた。In addition, as an additive ° 7-run cut spring cut (γ ami/propyltrietate/run OE 7 bottles manufactured by Unicar Mashiki Company,
A coupling agent Al100) was used.
ポリフェニレンスルフィド樹脂と、種々す粒度の酸化マ
グネシウム、或いはドロマイトクリンカ−との配合量を
変え、さらにシランカップリング剤をｌｖｔ％添加して
、ヘンンエルミキサー（８０Ｏｒｐｍ）で５分同温合し
た後、直径３０ｍｍの６Ｏｒｐｍの二ｆＩｌｌＩ同方向
ｄｌ練押出機を用い、３２０℃で混練しペレット化した
。After varying the blending amounts of polyphenylene sulfide resin and magnesium oxide or dolomite clinker of various particle sizes, and adding lvt% of a silane coupling agent, the mixture was heated at the same temperature for 5 minutes in a Hennel mixer (80 Orpm). The mixture was kneaded and pelletized at 320° C. using a 6-Orpm two flll I codirectional dl kneading extruder with a diameter of 30 mm.
これら各種の樹脂組成物のベレットを、押出成形機（日
＊Ｎ−１００Ｂ型）を用い、シリンター各ゾーン共に３
２０ ’Ｃとして、−次射出圧１３０ｋｇ／ｃＣ１二次
射出圧８０ ｋｇ／ ｃｍ’、金型温度８０°Ｃ１保圧
時間７秒、冷却時間２５秒で、第１図に示す形状のラン
プリフレクタ−を成形し、各種試験に供した。結果を第
１表１こ示す。Using an extrusion molding machine (Ni*N-100B type), pellets of these various resin compositions were molded into three cylinders in each zone.
At 20'C, the secondary injection pressure is 130kg/cC, the secondary injection pressure is 80kg/cm', the mold temperature is 80°C, the holding time is 7 seconds, and the cooling time is 25 seconds. was molded and subjected to various tests. The results are shown in Table 1.
なお、第１表中○、△、Ｘは、
）成形性
○１問題なく成形可能
△；成形やや困難
×；成形不能
）外観
表面ｔ■さ測定器（株式会肚小坂研究所φソ５Ｐ１３Ｄ
）で測定した平均表面ｆｎさの値で判定０．０８０μｍ
以下
△・０．８１〜１００μｍ
Ｘ；１．０１μｍ以上
１１１）耐熱性
成形したランプリフレクタ−の内面に八〇、を７〜８μ
巾の厚さに蒸着し、１５Ｖ・５０Ｗのハロゲンランプを
１０時間点灯し、表面の変化で判断した。In Table 1, ○, △, and
) Determined by the average surface fn value measured at 0.080 μm
Less than △・0.81~100μm
The film was deposited to a thickness of about 100 kW, and a 15 V, 50 W halogen lamp was lit for 10 hours, and the change in the surface was evaluated.
○１問題なし
△・こげる
Ｘ；樹脂部分が°若干溶ける
Ｖ）強度
０１７４７７８強度 ３ ｋｇ−ｃｍ／ ａｍ’を越え
る△；アイゾツト強度 １ 、５〜３ 、０ ｋｇ−ｃ
ｔｎ／ｃｍ’の範囲
×：アイゾノト強度 １ 、５ ｋｇ−ｃｍ／ Ｃｌ１
ｌ’未満を示す。○1 No problem △・Burning
Range of tn/cm'×: Isonoto strength 1, 5 kg-cm/Cl1
Indicates less than l'.
以 下 余 白
〔発明の効果〕
以ヒ述べたように、本発明のランプリフレクタ−は、樹
脂刊成物の一体成形よって製造されるので、価格が安く
、電気絶縁性で、外観が優れ、しかも熱伝導性がよく、
ランプの熱が放散される等多くの長所を有する。Margins below [Effects of the Invention] As described below, the lamp reflector of the present invention is manufactured by integrally molding a resin composition, so it is inexpensive, has electrical insulation properties, has an excellent appearance, and Moreover, it has good thermal conductivity,
It has many advantages such as the heat of the lamp is dissipated.
第１図は、本発明に係るランプリックレフターの一実施
例によって構成された照明器具の縦断面図である。
１ ・・・ランプリフレクタ−２・・・・・・ランプ、
３ランプホルダー ４ ・・・照明器具。FIG. 1 is a longitudinal sectional view of a lighting fixture constructed by an embodiment of a lamp leaver according to the present invention. 1...Lamp reflector-2...Lamp,
3 Lamp holder 4 ... Lighting equipment.
Claims (1)
度が９０％以上で、かつ平均粒子径が０．３〜５０μｍ
の酸化マグネシウムを９０〜５０ｗｔ％を含有する樹脂
組成物を一体成形してなることを特徴とする合成樹脂製
ランプリフレクター。Polyphenylene sulfide resin is 10 to 50 wt%, purity is 90% or more, and average particle size is 0.3 to 50 μm
A synthetic resin lamp reflector, characterized in that it is formed by integrally molding a resin composition containing 90 to 50 wt% of magnesium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33371788A JPH02178354A (en) | 1988-12-28 | 1988-12-28 | Lamp reflector made of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33371788A JPH02178354A (en) | 1988-12-28 | 1988-12-28 | Lamp reflector made of synthetic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02178354A true JPH02178354A (en) | 1990-07-11 |
Family
ID=18269178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33371788A Pending JPH02178354A (en) | 1988-12-28 | 1988-12-28 | Lamp reflector made of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02178354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038010A (en) * | 2000-07-26 | 2002-02-06 | Idemitsu Petrochem Co Ltd | Molding material for electric insulation and radiator parts and parts for image-forming apparatus using the same |
| JP2006282783A (en) * | 2005-03-31 | 2006-10-19 | Polyplastics Co | Highly heat-conductive resin composition |
-
1988
- 1988-12-28 JP JP33371788A patent/JPH02178354A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038010A (en) * | 2000-07-26 | 2002-02-06 | Idemitsu Petrochem Co Ltd | Molding material for electric insulation and radiator parts and parts for image-forming apparatus using the same |
| JP2006282783A (en) * | 2005-03-31 | 2006-10-19 | Polyplastics Co | Highly heat-conductive resin composition |
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