JPH0663050B2

JPH0663050B2 - Eyeglass frame

Info

Publication number: JPH0663050B2
Application number: JP26531584A
Authority: JP
Inventors: 孝久世; 充弘松永; 普三菅井; 隆石上; 典章八木; 鴻之祐山内
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1984-12-18
Filing date: 1984-12-18
Publication date: 1994-08-17
Anticipated expiration: 2009-08-17
Also published as: JPS61147833A

Description

【発明の詳細な説明】（発明の技術分野）本発明は、快削性及び耐食性が良好な眼鏡枠に関する。TECHNICAL FIELD OF THE INVENTION The present invention relates to an eyeglass frame having good free-cutting property and corrosion resistance.

（発明の技術的背景及びその問題点）眼鏡枠は図面に示されるごとく、テンプル，アイリム
，やま，はこ，あし，リムロック，ヒンジ
，わたり，かざり，ねじなどの各種部品からな
っている。(Technical background of the invention and its problems) As shown in the drawings, the spectacle frame is composed of various parts such as a temple, an eye rim, a mountain, a saw, a foot, a rim lock, a hinge, a cross, a decoration, and a screw.

これら眼鏡部品に使用される材料はプラスチック。金属
等様々なものが使用されている。特に金属性眼鏡はデザ
インのスマートさ、機能的優秀性の点から重用されてい
る。The material used for these eyeglass parts is plastic. Various things such as metal are used. In particular, metallic glasses are often used because of their smart design and functional excellence.

眼鏡部品を構成する金属材料には洋白，ステンレス鋼，
アルミニウム，黄銅，りん青銅，ニッケルクロム合金な
どが使用されている。これらのうちニッケル銅合金は色
調，耐食性及び加工性に優れている点で極めて好ましい
材料である。Metallic materials for eyeglass parts include nickel silver, stainless steel,
Aluminum, brass, phosphor bronze, nickel chrome alloy, etc. are used. Of these, nickel-copper alloys are extremely preferable materials because of their excellent color tone, corrosion resistance, and workability.

しかし、ニッケル銅合金は眼鏡用としては快削性が必ず
しも十分満足されるものではない。そこで耐食性及び快
削性を兼ね備えたニッケル−銅合金が求められているわ
けであるが、快削性を改善しようとすると耐食性が低下
し、一方耐食性を改善しようとすると快削性が低下し、
双方の特性を満足する眼鏡用ニッケル銅合金が得られ
ず、したがってそのような眼鏡枠も得られなかった。However, nickel-copper alloys are not always sufficiently satisfactory in free-cutting properties for eyeglasses. Therefore, a nickel-copper alloy having both corrosion resistance and free-cutting property is required, but when trying to improve the free-cutting property, the corrosion resistance decreases, while when trying to improve the corrosion resistance, the free-cutting property decreases.
No spectacle nickel-copper alloy satisfying both properties has been obtained, and therefore no such spectacle frame has been obtained.

（発明の目的）本発明の第一の目的は、快削性が良好で、かつ耐食性が
良好なニッケル銅合金でなる眼鏡枠を提供することにあ
り、本発明の第二の目的は、快削性，熱間加工性及び耐
食性が良好なニッケル銅合金でなる眼鏡枠を提供するこ
とにある。(Object of the Invention) A first object of the present invention is to provide an eyeglass frame made of a nickel-copper alloy having good free-cutting property and good corrosion resistance, and the second object of the present invention is to provide An object of the present invention is to provide a spectacle frame made of a nickel-copper alloy having excellent machinability, hot workability and corrosion resistance.

（発明の概要）本発明は、第一の目的を達成する為にPb,Te,S,Se,Bi及
びCaから選択された１種又は２種以上の元素を重量％で
0.005〜５％含有させたニッケル銅合金でなる眼鏡枠を
提供する。即ち、Pb,Te,S,Se,Bi及びCaの元素は、Cu−N
i合金中に低融点の金属性介在物あるいは非金属性介在
物として存在し、耐食性をあまり低下させず潤滑効果を
向上させ、かつ切削工具の刃先に生じるきりこを落す効
果を向上させる。しかし、この種の元素が多すぎると熱
間加工性及び快削性が低下し、一方少なすぎると効果が
少ない。したがって、その含有量としては0.001〜５重
量％、更には0.01〜２重量％、更には0.1〜１重量％が
好ましい。(Summary of the Invention) In order to achieve the first object of the present invention, one or more elements selected from Pb, Te, S, Se, Bi and Ca in weight% are used.
An eyeglass frame made of a nickel-copper alloy containing 0.005 to 5% is provided. That is, the elements of Pb, Te, S, Se, Bi and Ca are Cu-N
It exists as a low-melting metallic inclusion or non-metallic inclusion in the i-alloy and improves the lubrication effect without significantly lowering the corrosion resistance and also improves the effect of removing the crevices generated at the cutting edge of the cutting tool. However, if the amount of this kind of element is too large, the hot workability and free-cutting property are deteriorated, while if it is too small, the effect is small. Therefore, its content is preferably 0.001 to 5% by weight, more preferably 0.01 to 2% by weight, and further preferably 0.1 to 1% by weight.

この本発明により耐食性と快削性が共に良好な合金が得
られるが、更に熱間加工性を改善しなうとすると、快削
性及び耐食性が低下しやすく、耐食性，快削性，加工性
の特性を共に満足する合金が得られにくかった。そこで
本発明は、第二の目的を達成する為にPb,Te,S,Se,Bi及
びCaから選択された少なくとも１種の元素を重量％で0.
005〜５％含有させ、かつTi:0.01〜４重量％,C:0.005〜
0.5重量％及びMg:0.002〜0.1重量％から選択された少な
くとも１種の元素を含有させたことを特徴とするニッケ
ル銅でなる眼鏡枠を提供する。According to the present invention, an alloy having both good corrosion resistance and good free-cutting property can be obtained. However, if hot workability is not improved, free-cutting property and corrosion resistance are likely to decrease, and corrosion resistance, free-cutting property and workability It was difficult to obtain an alloy satisfying both characteristics. Therefore, in the present invention, in order to achieve the second object, at least one element selected from Pb, Te, S, Se, Bi and Ca is 0.
005 to 5%, Ti: 0.01 to 4% by weight, C: 0.005 to
Provided is a spectacle frame made of nickel-copper, which contains at least one element selected from 0.5% by weight and Mg: 0.002 to 0.1% by weight.

ここでTi,C及びMgの添加は前記添加元素（Pb,Te,S,Se,B
i及びCa）の添加効果の切削性を低下させることなく熱
間加工性を向上させる。即ち、Tiは窒素を固定しブロー
ホールの発生を防止し、Ｃ及びMgは結晶粒の粒大化を防
ぐのに役立つ。しかし、これらの添加元素が多すぎると
熱間加工性を低下させ、一方少なすぎても良好な熱間加
工性が得にくい。したがって、Ti成分の範囲としては0.
01〜４重量％、更には0.05〜２重量％、更には0.1〜１
重量％が好ましく、Ｃ及びMgの成分範囲としてはともに
0.001〜0.5重量％、更には0.01〜0.1重量％が好まし
い。Here, the addition of Ti, C and Mg is based on the above-mentioned additive elements (Pb, Te, S, Se, B
The hot workability is improved without reducing the machinability of the effect of adding i and Ca). That is, Ti fixes nitrogen and prevents the generation of blowholes, and C and Mg help prevent the crystal grains from increasing in size. However, if the amount of these additional elements is too large, the hot workability is deteriorated, while if it is too small, it is difficult to obtain good hot workability. Therefore, the range of Ti component is 0.
01 to 4% by weight, further 0.05 to 2% by weight, further 0.1 to 1
Weight% is preferable, and both of the C and Mg component ranges are
It is preferably 0.001 to 0.5% by weight, more preferably 0.01 to 0.1% by weight.

一方、本発明合金におけるニッケル銅合金は、装飾性及
び耐食性の点から、銅10〜90重量％、残部実質的にニッ
ケルよりなる合金である。On the other hand, the nickel-copper alloy in the alloy of the present invention is an alloy consisting of 10 to 90% by weight of copper and the balance substantially nickel from the viewpoint of decorativeness and corrosion resistance.

これらの特性のほかに更に変形加工性及び高耐食性に着
目するとCu成分は10〜30％が好ましく、一方耐海水性及
び高温強度に着目すると60〜75％が好ましい。このよう
にそれぞれの要求特性により一層好ましい成分範囲があ
る。以上述べた本発明の合金は切削性が特に要求される
眼鏡部品に有効であり、例えばヒンジに適する。このヒ
ンジとしての快削性は、直径3mmのストレートドリルを
使用し荷重13kg、時間30秒で穿孔できる深さが2.5mm以
上、更には3mm以上あるのが望ましく、本発明の合金は
この要求特性を満す。In addition to these characteristics, if attention is paid to deformation workability and high corrosion resistance, the Cu content is preferably 10 to 30%, while if attention is paid to seawater resistance and high temperature strength, 60 to 75% is preferable. As described above, there is a more preferable composition range depending on the required characteristics. The alloys of the present invention described above are effective for eyeglass parts that are particularly required to have machinability, and are suitable for hinges, for example. The free-cutting property as the hinge is a depth of 2.5 mm or more that can be drilled in a load of 13 kg and a time of 30 seconds using a straight drill having a diameter of 3 mm, and further preferably 3 mm or more, and the alloy of the present invention has the required characteristics. To satisfy.

（発明の実施例）本発明の実施例について説明する。第１表に示す合金で
眼鏡枠を製造する際の熱間加工性，快削性について更に
製品の耐食性について測定した。その測定方法として切
削性は直径3mmのストレートドリルを使用し荷重13kgで
時間30秒間の条件下で穿孔し、その深さを測定し、耐食
性は食塩1.0％，尿素0.2％，硫化ナトリウム0.03％，砂
糖0.02％，アンモニア水0.02％，乳酸0.1％，残り水の
組成よりなる人工汗に10分間浸漬後10分間乾燥のくり返
しにより腐食発生を測定し、熱間加工性は温度700〜110
0℃，圧下率50％の条件で目視により測定した。ここで
の評価は以下の如くした。(Examples of the Invention) Examples of the present invention will be described. The hot workability and free-cutting property in manufacturing eyeglass frames from the alloys shown in Table 1 were further measured, and the corrosion resistance of the products was measured. As a measuring method, a straight drill with a diameter of 3 mm was used as the measuring method, a hole was drilled under the condition of a load of 13 kg for 30 seconds, and the depth was measured. Corrosion resistance was 1.0% salt, 0.2% urea, 0.03% sodium sulfide, Corrosion is measured by repeated immersion for 10 minutes in artificial sweat consisting of 0.02% sugar, 0.02% ammonia water, 0.1% lactic acid, and residual water, and drying for 10 minutes.
It was measured visually at 0 ° C and a reduction rate of 50%. The evaluation here is as follows.

×……完全にくだけた △……クラックが入った〇……実用としての歩留りを確保できる程度であった ◎……加工性は良好であった第１表から明らかな如く、本発明実施例の眼鏡枠は比較
例に比べて、耐食性及び切削性が双方とも良好である。
又、本発明の眼鏡枠はTi等を添加することによりろう付
性及び加工性が良好であり、特に眼鏡部品のヒンジ，リ
ムロック，アイリム，テンプル，ハコ，ブリッヂの順に
適していた。×: Completely scraped △: Cracked ○: It was at a level that could secure a practical yield ◎: Good workability As is clear from Table 1, the spectacle frames of the examples of the present invention have better corrosion resistance and machinability than the comparative examples.
Further, the spectacle frame of the present invention has good brazability and workability by adding Ti or the like, and was particularly suitable for the spectacle parts in the order of hinge, rim lock, eye rim, temple, box, bridge.

（発明の効果）以上説明したように、本発明はニッケル銅合金にPb,Te,
S,Se,Bi及びCaから選択された１種又は２種以上の元素
を重量％で0.005〜５％含有させた合金を用いることに
より、快削性が良好で、かつ耐食性が良好な眼鏡枠を提
供でき、更にTi:0.01〜４重量％,C:0.001〜0.5重量％及
びMg:0.001〜0.5重量％から選択された少なくとも１種
の元素を含有させた合金をもちいることにより耐食性，
快削性及び熱間加工性が良好な眼鏡枠を提供できる。(Effects of the Invention) As described above, the present invention is applicable to nickel-copper alloys containing Pb, Te,
A spectacle frame having good free-machining property and good corrosion resistance by using an alloy containing 0.005 to 5% by weight of one or more elements selected from S, Se, Bi and Ca Corrosion resistance by using an alloy containing at least one element selected from Ti: 0.01 to 4% by weight, C: 0.001 to 0.5% by weight, and Mg: 0.001 to 0.5% by weight.
It is possible to provide a spectacle frame having good free-cutting property and hot workability.

[Brief description of drawings]

図面は本発明眼鏡の一例を示す斜視図である。１……テンプル、２……アイリム３……やま、４……はこ５……あし、６……リムロック７……ヒンジ、８……わたり９……かざり、10……ねじ The drawing is a perspective view showing an example of the glasses of the present invention. 1 …… Temple 2 …… Eye rim 3 …… Yama 4 …… Horse 5 …… Ashi, 6 …… Rim lock 7 …… Hinge, 8 …… Overpass 9 …… Zipper, 10 …… Screw

───────────────────────────────────────────────────── フロントページの続き (72)発明者松永充弘神奈川県横浜市磯子区新杉田町８株式会社東芝横浜金属工場内 (72)発明者菅井普三神奈川県横浜市磯子区新杉田町８株式会社東芝横浜金属工場内 (72)発明者石上隆神奈川県横浜市磯子区新杉田町８株式会社東芝横浜金属工場内 (72)発明者八木典章神奈川県横浜市磯子区新杉田町８株式会社東芝横浜金属工場内 (72)発明者山内鴻之祐福井県福井市大手２丁目22―33 株式会社山内商店内 (56)参考文献特開昭52−114520（ＪＰ，Ａ) 特開昭50−74507（ＪＰ，Ａ) 特開昭54−111841（ＪＰ，Ａ) 特開昭56−72146（ＪＰ，Ａ) 特開昭58−42739（ＪＰ，Ａ) 特開昭59−170234（ＪＰ，Ａ) 特公昭45−31538（ＪＰ，Ｂ１) ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Mitsuhiro Matsunaga 8 Shinsugita-cho, Isogo-ku, Yokohama, Kanagawa Stock Company Toshiba Yokohama Metal Factory (72) Inventor Fuzo Sugai 8 Shinsugita-cho, Isogo-ku, Yokohama, Kanagawa Inside the Toshiba Yokohama Metal Factory (72) Inventor Takashi Ishigami 8 Shinsita-cho, Isogo-ku, Yokohama-shi, Kanagawa Stock Company Inside the Toshiba Yokohama Metal Factory (72) Noriaki Yagi 8 Shinsugita-cho, Isogo-ku, Yokohama, Kanagawa Stock Company Yokohama Metal Factory (72) Inventor Konosuke Yamauchi 2-22-33, Otei, Fukui, Fukui Prefecture Yamauchi Shoten Co., Ltd. (56) References JP-A-52-114520 (JP, A) JP-A-50-74507 ( JP, A) JP 54-111841 (JP, A) JP 56-72146 (JP, A) JP 58-42739 (JP, A) JP 59-170234 (JP, A) JP45-31538 (JP, B1)

Claims

[Claims]

1. Containing 0.005 to 5% by weight of one or more elements selected from Pb, Te, S, Se, Bi and Ca.
Copper: A spectacle frame consisting of 10 to 90% and the balance substantially nickel.

2. Containing 0.005 to 5% by weight of one or more elements selected from Pb, Te, S, Se, Bi and Ca,
And Ti: 0.01-4%, C: 0.001-0.5% and Mg: 0.001-0.5
%, Containing one or more elements selected from
Copper: A spectacle frame consisting of 10 to 90% and the balance substantially nickel.