JPS6135424A - Composite blank material for spectacle frame - Google Patents

Abstract

PURPOSE:To provide a reduced weight, increased strength and improved brazing characteristic, plating characteristic and workability by using an alloy formed by dispersing either of SiC powder or SiC fibers at specific volumetric % into a Ti alloy as a core material, providing an intermediate layer if necessary on the outside peripheral surface thereof and cladding an alloy having corrosion resistance on the outside peripheral side thereof. CONSTITUTION:Either of the SiC powder or SiC fibers is dispersed at 0.1- 40vol% into the Ti alloy to be used as the core material in order to improve the mechanical strength of the core material. The weight of said material is reduced by controlling the content of the SiC. The alloy of Cu, Ni, Ag, Au, platinum group or stainless steel group having corrosion resistance is clad on the outside peripheral side of the core material. The difficulty of brazing by the high-temp. activity of the Ti which is the essential component of the core material is thereby prevented and the poor plating characteristic of the secure oxide film on the Ti surface is prevented as well. The joint strength between the core material and the sheath material is further improved if a material consisting of any of Ag, Cu, Ni or the alloy thereof is interposed and joined therebetween as the intermediate layer.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、眼鏡フレーム用複合素材の改良に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to improvements in composite materials for eyeglass frames.

（従来技術とその問題点） 近特、■鏡着用者の活動範囲を拡げる意味や掛心地を改
善する意味から、レンズ、フレーム共に軽量且つ高強度
の眼鏡が要望されている。(Prior Art and its Problems) Near-Toku, ■Mirrors There is a demand for eyeglasses with lightweight and high-strength lenses and frames in order to expand the range of activities of the wearer and improve wearing comfort.

このようなことから最近比重が４．５１のＴｉ又はその
合金より成る第２図ａに示す眼鏡フレーム用素材１や、
これを芯材としてその外周側にめっき特性を向上する為
に第２図すに示す如く耐食性の良いＣｕ系、Ｎｉ系、Ａ
ｇ系、Ａｕ系、白金族系。For this reason, the material 1 for eyeglass frames shown in FIG. 2a, which is made of Ti or its alloy and has a specific gravity of 4.51,
This is used as a core material, and in order to improve the plating properties on the outer circumferential side, Cu-based, Ni-based, and A
g-based, Au-based, platinum group-based.

ステンレス鋼系の合金を被覆材２としてクラッドした眼
鏡フレーム用複合素材３、更には第２図すに示す眼鏡フ
レーム用複合素材３の芯材１と被覆材２との接合強度を
上げる為に第２図Ｃに示ず如（Ａｇ、Ｃｕ、Ｎｉ、それ
らの合金等の材料が中間層４が介在接合された眼鏡フレ
ーム用複合素材５が開発され、実用化されている。Composite material 3 for eyeglass frames is clad with stainless steel alloy as covering material 2, and furthermore, in order to increase the bonding strength between core material 1 and covering material 2 of composite material 3 for eyeglass frames as shown in FIG. As shown in FIG. 2C, a composite material 5 for eyeglass frames in which materials such as Ag, Cu, Ni, and alloys thereof are bonded with an intermediate layer 4 interposed therein has been developed and put into practical use.

然し乍ら、プラスチックレンズの開発により、フレーム
にも更に軽量且つ高強度な素材が要求さく２） れるようになり、前記第２図ａ、ｂ、ｃに示す各材料で
はこの要求に応えられなくなっている。However, with the development of plastic lenses, there has been a demand for lighter and stronger materials for frames2), and the materials shown in Figure 2 a, b, and c above are no longer able to meet these demands. .

一方、ＡＩ、Ａ１合金は比重が２．７で、Ｔ’ｉの３１
５であるが、融点が６５０℃程度で低く、従来眼鏡フレ
ームに適用されていたろう付けを適用できない。On the other hand, AI and A1 alloys have a specific gravity of 2.7 and a T'i of 31
5, but its melting point is low at about 650°C, and brazing, which has conventionally been applied to eyeglass frames, cannot be applied.

（発明の目的） 本発明は斯かる実情に鑑み成されたものであり、軽量且
つ高強度で、ろう付は特性、めっき特性。(Objective of the Invention) The present invention has been made in view of the above circumstances, and is lightweight and has high strength, and has excellent brazing and plating characteristics.

加工性に優れた眼鏡フレーム用複合素材を提供すること
を目的とするものである。The purpose of this invention is to provide a composite material for eyeglass frames that has excellent workability.

（発明の構成） 本発明の眼鏡フレーム用複合素材の１つは、Ｔｉ合金中
にＳｉＣ粉末、５ｉＣＩＪｌｌ維のいずれかを０．１〜
４０体積％分散した合金を芯材となし、その外周側に耐
食性を有するＣｕ系、Ｎｉ系、Ａｇ系、ＡＵ系、白金族
系、ステンレス鋼系のいずれかの合金をクラッドしたも
のである。(Structure of the Invention) One of the composite materials for eyeglass frames of the present invention is a Ti alloy containing either SiC powder or 5iCIJll fiber in an amount of 0.1 to 0.1%.
The core material is an alloy dispersed at 40% by volume, and the outer periphery is clad with a corrosion-resistant Cu-based, Ni-based, Ag-based, AU-based, platinum group, or stainless steel-based alloy.

本発明の眼鏡フレーム用複合素材の他の１つは、Ｔｉ合
金中にＳｉＣ粉末、ＳｉＣ繊維のいずれかを０．１〜４
０％体積分散した合金を芯材となし、その外周側にＡｇ
、Ｃｕ、Ｎｉ、それらの合金のいずれかより成る材料を
中間層としてクラッドし、さらにその外周側に耐食性を
有するＣｕ系、Ｎｉ系、Ａｇ系、Ａｕ系、白金族系、ス
テンレス鋼系のいずれかの合金をクラッドしたものであ
る。Another composite material for eyeglass frames of the present invention is a Ti alloy containing 0.1 to 4% of either SiC powder or SiC fiber.
The core material is an alloy with 0% volume dispersion, and the outer circumference is made of Ag.
, Cu, Ni, or any of their alloys as an intermediate layer, and the outer periphery is made of Cu, Ni, Ag, Au, platinum group, or stainless steel material that has corrosion resistance. It is clad with the same alloy.

上記本発明の眼鏡フレーム用複合素材に於いて、芯材と
なるＴｉ合金中にＳｉＣ粉末、ＳｉＣ繊維のいずれかを
０．１〜４０体積％分散した理由は、芯材の機械的強度
を向上する為と、ＳｉＣの比重が３．２１とＴｉの７１
％でＳｉＣの量をコントロールすることにより軽量化を
図ることができる為であって、０．１体積％未満では芯
材の機械的強度を向上させることができず、４０体積％
を超えると加工困難となるからである。In the composite material for eyeglass frames of the present invention, the reason for dispersing 0.1 to 40% by volume of either SiC powder or SiC fiber in the Ti alloy serving as the core material is to improve the mechanical strength of the core material. This is because the specific gravity of SiC is 3.21 and that of Ti is 71.
This is because weight reduction can be achieved by controlling the amount of SiC at 40% by volume, and if it is less than 0.1% by volume, the mechanical strength of the core material cannot be improved.
This is because if it exceeds this, it becomes difficult to process.

また本発明の眼鏡フレーム用複合素材に於いて、芯材の
外周側に耐食性を有するＣｕ系、Ｎｉ系。Furthermore, in the composite material for eyeglass frames of the present invention, the outer peripheral side of the core material is Cu-based and Ni-based, which have corrosion resistance.

Ａｇ系、Ａｕ系、白金族系、ステンレス鋼系の合金をク
ラッドする理由は、芯材の主成分であるＴｉが高温で活
性である為、ろう付は時、ガスとの反応が起り、ろう付
けが困難となるのを防ぎ、またＴｉの表面は強固な酸化
膜に被われている為、めっき特性に劣るのを改善するこ
とができ、眼鏡フレーム用素材として使用可能となるか
らである。The reason for cladding Ag-based, Au-based, platinum group-based, and stainless steel-based alloys is that Ti, the main component of the core material, is active at high temperatures. This is because it prevents the Ti from becoming difficult to attach, and since the surface of Ti is covered with a strong oxide film, poor plating properties can be improved, and it can be used as a material for eyeglass frames.

さらに本発明の眼鏡フレーム用複合素材の他の１つに於
いて、芯材と外被金属との間に、Ａｇ。Furthermore, in another composite material for eyeglass frames of the present invention, Ag is present between the core material and the outer covering metal.

Ｃｕ、Ｎｉ、それらの合金のいずれかより成る材料を中
間層として介在接合した理由は、芯材と外被金属との接
合強度が更に向上し、より信頼性の高い眼鏡フレーム用
複合素材を得ることができるからである。The reason why a material made of Cu, Ni, or an alloy thereof is interposed and bonded as an intermediate layer is to further improve the bonding strength between the core material and the outer sheath metal, and to obtain a more reliable composite material for eyeglass frames. This is because it is possible.

（実施例） 本発明の眼鏡フレーム用複合素材の各種の実施例を図に
よって説明する。(Examples) Various examples of the composite material for eyeglass frames of the present invention will be described with reference to the drawings.

第１図ａに示す眼鏡フレーム用複合素材６（実施例１）
は、粒径１〜５μｍのＳｉＣ粉末を５〜１５μｍのＴｉ
粉末中に１０体積％混合して均一に分散した粉末冶金法
による直径２．７鰭の芯材７の外周側に、Ｎｉ−Ｃｒｌ
Ｏ重量％を被覆材８として１７０μｍクラッドしたもの
である。Composite material 6 for eyeglass frames shown in FIG. 1a (Example 1)
SiC powder with a particle size of 1 to 5 μm is mixed with Ti of 5 to 15 μm.
Ni-Crl is added to the outer circumferential side of the core material 7 having a diameter of 2.7 fins, which is made by powder metallurgy and is uniformly dispersed by mixing 10% by volume in the powder.
The coating material 8 was clad with 170 μm of 0% by weight.

第１図すに示す眼鏡フレーム用複合素材９（実施例２）
は、粒径０．５〜５μｍのＳｉＣ粉末を粒径５〜１５μ
ｍのＴｉ粉末中に２５体積％混合して均一に分散した粉
末冶金法による直径２．９ｆｌの芯材７の外周側に、Ｃ
ｕ−Ｎｉ３０重量％より成る材料を中間層１０として５
．５μｍクラッドし、さらにその外周側にに２０金合金
を被覆材８として４２μｍクラッドしたものである。Composite material 9 for eyeglass frames shown in Figure 1 (Example 2)
is SiC powder with a particle size of 0.5 to 5 μm and a particle size of 5 to 15 μm.
C is mixed on the outer peripheral side of a core material 7 with a diameter of 2.9 fl by a powder metallurgy method and uniformly dispersed by mixing 25% by volume in Ti powder of
A material consisting of 30% by weight of u-Ni is used as the intermediate layer 5.
．． It is clad with a thickness of 5 μm, and a 20-karat gold alloy is further clad with a thickness of 42 μm on the outer circumferential side as a covering material 8.

第１図Ｃに示す眼鏡フレーム用複合素材１１（実施例３
）は、線径１〜１０μｍ、長さ２０〜２００．ｕ　ｍの
短いＳｉ’Ｃ繊維を粒径５〜１５μｍのＴｉ粉末中に３
０体積％混合し、圧縮、成形した直径５０ｍ、長さ７０
龍のビレットを１０１■Ｈｇの真空中で９００℃。Composite material 11 for eyeglass frames shown in FIG. 1C (Example 3)
) has a wire diameter of 1 to 10 μm and a length of 20 to 200 μm. 3 μm short Si'C fibers were added to Ti powder with a particle size of 5 to 15 μm.
0 volume% mixed, compressed and molded diameter 50m, length 70
The dragon billet was heated to 900℃ in a vacuum of 101■Hg.

３時間焼結し、この焼結体の外周にＮｉ−ＣｒｌＯ％よ
り成る厚さ　１．７＋＋ｎのバイブを嵌着の上、　６５
０℃で熱間圧縮を行って直径３５ｍｍ、長さ４５ｉｎ＋
の複合ビレットを作り、引き続き６００℃で熱間押出（
押出比３４）を行って、直径３ｆｌとなし、芯材７の外
周の被覆材８の厚さを１７０μｍとしたものである。After sintering for 3 hours, a vibrator made of Ni-CrlO% with a thickness of 1.7++n was fitted around the outer periphery of the sintered body, and 65
Hot compressed at 0℃ to a diameter of 35mm and a length of 45in+
A composite billet is made and then hot extruded at 600℃ (
The extrusion ratio was 34) to obtain a diameter of 3 fl, and the thickness of the covering material 8 around the outer periphery of the core material 7 to be 170 μm.

この眼鏡フレーム用複合素材１１の芯材７中のＳｉＣ繊
維７ａは、前記複合ビレットの熱間押出により図示の如
く長手方向に整列せしめられている。The SiC fibers 7a in the core material 7 of this composite material 11 for eyeglass frames are aligned in the longitudinal direction as shown in the figure by hot extrusion of the composite billet.

第１図ｄに示す眼鏡フレーム用複合素材１２（実施例４
）は、線径１〜１０μｍ、長さ２０〜２００μｍの短い
ＳｉＣ繊維を粒径５〜１５μｍのＴｉ粉末中に２５体積
％混合し、圧縮成形した直径５０ｍ、長さ１００ｍのビ
レットを１０−’ｍｍＨｇの真空中で１０００℃。Composite material 12 for eyeglass frames (Example 4) shown in FIG.
) is a billet with a diameter of 50 m and a length of 100 m that is compression-molded by mixing 25 volume % of short SiC fibers with a wire diameter of 1 to 10 μm and a length of 20 to 200 μm in Ti powder with a particle size of 5 to 15 μm. 1000°C in a vacuum of mmHg.

２時間焼結し、この焼結体の外表面にＣｕ　−Ｎ　３３
０重量％より成る厚さＯ，Ｉｎ＋の薄板を巻き付け、さ
らにその外周にに２０金合金より成る厚さ０，８　ｔａ
のパイプを嵌着の上、６００℃で熱間圧縮を行って直径
３５ｔｍ　、長さ５０寵の複合ビレットを作り、引き続
き５５０℃で熱間押出（押出比２０）を行って、直径３
鰭となし、芯材７の外周の中間層１０の厚さを５．５μ
ｍ、被覆材８の厚さを４２μｍとなしたものである。こ
の眼鏡フレーム用複合素材１２の芯材７中のＳｉＣ繊維
７ａは、前記複合ビレットの熱間押出により図示の如く
長手方向に整列せしめられている。After sintering for 2 hours, Cu-N33 was formed on the outer surface of the sintered body.
A thin plate of 0.0% by weight with a thickness of 0.8 ta is wound around the outer periphery of the thin plate of 0.8 ta of 20 gold alloy.
A composite billet with a diameter of 35 tm and a length of 50 cm was made by hot compression at 600℃, followed by hot extrusion at 550℃ (extrusion ratio 20) to create a composite billet with a diameter of 3.
The thickness of the intermediate layer 10 on the outer periphery of the fin and core material 7 is 5.5 μm.
m, and the thickness of the covering material 8 is 42 μm. The SiC fibers 7a in the core material 7 of the composite material 12 for eyeglass frames are aligned in the longitudinal direction as shown in the figure by hot extrusion of the composite billet.

然してこれらの各実施例１〜４の眼鏡フレーム用複合素
材６．　９．１１．１２と、第２図Ｃに示ず如く純Ｔｉ
（Ｔｉ２種）を芯材１とし、その外周側にＡ　ｇ　−Ｃ
ｕ　１０重量％を中間層４として５．５μｍクラッドし
、さらにその外周側にＮｉ−ＣｒｌＯ重量％を被覆材２
として１７０ｔｔｍクラッドした直径３Ｎの従来例の眼
鏡フレーム用複合素材５との比重、引張強度、比強度（
引張強度／比重）を測定した処、下記の表に示す結果を
得た。However, the composite materials for eyeglass frames of each of Examples 1 to 4 6. 9.11.12 and pure Ti as shown in Figure 2C.
(Ti type 2) is used as the core material 1, and A g -C on the outer periphery side.
U 10% by weight is clad with a thickness of 5.5 μm as the intermediate layer 4, and the outer periphery is further coated with a Ni-CrlO coating material 2 of 10% by weight.
Specific gravity, tensile strength, specific strength (
The tensile strength/specific gravity) was measured and the results shown in the table below were obtained.

上記の表で明らかなように実施例１〜４の眼鏡フレーム
用複合素材は、従来例の眼鏡フレーム用複合素材に比し
、比重が低く、引張強度が高く、従って比強度が著しく
高いことが判る。As is clear from the table above, the composite materials for eyeglass frames of Examples 1 to 4 have lower specific gravity and higher tensile strength than the conventional composite materials for eyeglass frames, and therefore have significantly higher specific strength. I understand.

（発明の効果） 以上詳記した通り本発明の眼鏡フレーム用複合素材は、
比重が低くて軽量であり、しかも引張強度が高くて比強
度が著しく高く、その上ろう付特性、めっき特性、加工
性も優れているの′で、従来のＨＭ、鏡フレーム用複合
素材に代替して、軽量、高強度の眼鏡フレームを容易に
製造でき、眼鏡着用者が活動し易く、掛心地の良い眼鏡
フレームを得ることができるという効果がある。(Effects of the Invention) As detailed above, the composite material for eyeglass frames of the present invention has the following features:
It has a low specific gravity and is lightweight, has a high tensile strength, has an extremely high specific strength, and has excellent brazing properties, plating properties, and workability, so it can be used as an alternative to conventional composite materials for HM and mirror frames. As a result, a lightweight, high-strength eyeglass frame can be easily manufactured, and the eyeglass frame can be easily worn and comfortable for the eyeglass wearer to carry out activities.

【図面の簡単な説明】 第１図ａ乃至ｄは夫々本発明の眼鏡フレーム用複合素材
の実施例を示すもので、ａ、ｂは横断面図、ｃ、ｄは縦
断面図、第２図ａ、ｂ、ｃは夫々従来のｌ１ｆｆ鏡フレ
一ム用複合素材の横断面図である。 出願人　　田中貴金属工業株式会社 第１図 （Ｑ） （Ｃ） ７：１て才イ ７ａ：ＳｉＣ楕推 （ｂ） （ｄ） １０：１＋Ｆ開涜 第２１〕 （Ｑ）　　　　　　　　（ｂ） （Ｃ）[Brief Description of the Drawings] Figures 1a to d show examples of the composite material for eyeglass frames of the present invention, where a and b are cross-sectional views, c and d are longitudinal cross-sectional views, and Figure 2 Figures a, b, and c are cross-sectional views of a conventional composite material for an 11ff mirror frame, respectively. Applicant: Tanaka Kikinzoku Kogyo Co., Ltd. Figure 1 (Q) (C) 7:1 7a: SiC ellipse (b) (d) 10:1 + F opening 21] (Q) (b) (C)

Claims (1)

【特許請求の範囲】 １）Ｔｉ又はＴｉ合金中にＳｉＣ粉末、ＳｉＣ繊維のい
ずれかを０．１〜４０体積％分散した合金を芯材となし
、その外周側に耐食性を有するＣｕ系、Ｎｉ系、Ａｇ系
、Ａｕ系、白金族系、ステンレス鋼系のいずれかの合金
を被覆材としてクラッドして成る眼鏡フレーム用複合素
材。 ２）Ｔｉ又はＴｉ合金中にＳｉＣ粉末、ＳｉＣ繊維のい
ずれかを０．１〜４０体積％分散した合金を芯材となし
、その外周側にＡｇ、Ｃｕ、Ｎｉ、それらの合金のいず
れかより成る材料を中間層としてクラッドし、さらにそ
の外周側に耐食性を有するＣｕ系、Ｎｉ系、Ａｇ系、Ａ
ｕ系、白金族系、ステンレス鋼系のいずれかの合金を被
覆材としてクラッドして成る眼鏡フレーム用複合素材。[Claims] 1) The core material is an alloy in which 0.1 to 40% by volume of either SiC powder or SiC fibers is dispersed in Ti or Ti alloy, and the outer periphery is made of Cu-based, Ni-based material having corrosion resistance. A composite material for eyeglass frames made of a cladding material made of any of the following alloys: alloys such as silver, silver, gold, platinum group, and stainless steel. 2) The core material is an alloy in which 0.1 to 40% by volume of either SiC powder or SiC fibers is dispersed in Ti or Ti alloy, and the outer periphery is made of Ag, Cu, Ni, or any of their alloys. The material is clad as an intermediate layer, and the outer periphery is made of Cu-based, Ni-based, Ag-based, A-based materials that have corrosion resistance.
A composite material for eyeglass frames made of a cladding material made of a U-based, platinum group, or stainless steel alloy.