JPS6135422A - Composite blank material for spectacle frame - Google Patents

Abstract

PURPOSE:To provide a reduced weight, increased strength and improved brazing characteristic and plating characteristic by using Be or Be alloy contg. at least one kind among specific metal groups up to specific weight % in total as a core material, providing an intermediate layer thereof if necessary and coating any of a specific alloy group as a coating material thereon. CONSTITUTION:At least one kind among Fe, Co, Ni, Cu, Ag, Ti, Zr, Al, Sn, In, Ga and Si is incorporated at <=7wt% in total into the Be alloy to improve additionally the strength of the Be core material. The alloy of any among Ni-Cr, Cu-Ni, Ag-Pd, Au, stainless steel and Ag-Cu is clad as the coating material on the outside peripheral surface of the core material consisting of the Be or Be alloy to prevent the obstruction of surface treatments such as brazing, welding and plating by the secure oxide film of the core material surface. The joint strength of the core material and the coating material is thus improved.

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もの
である。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to improvements in composite materials for eyeglass frames.

（従来技術とその問題点） 近時、眼鏡着用者の活動範囲を広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) Recently, there has been a demand for eyeglasses with both lenses and frames that are lightweight and have high strength, in order to expand the range of activities of eyeglass wearers and to improve the comfort of wearing them.

このようなことから最近比重が４．５１のＴｉ又はＴｉ
合金より成る眼鏡フレーム用素材やこの眼鏡フレーム用
素材を芯材としてその外周側にめっき特性を向上させる
為に耐食性を有する材料即ちＮｉ　−Ｃｒ系、Ｃｕ−Ｎ
ｉ系、Ａｇ−Ｐｄ糸、Ａｕ系。For this reason, Ti or Ti with a specific gravity of 4.51 recently
Materials for eyeglass frames made of alloys and materials with corrosion resistance, such as Ni-Cr type and Cu-N, are used to improve plating properties on the outer periphery of the material for eyeglass frames as a core material.
i series, Ag-Pd yarn, Au series.

ステンレス鋼系、Ａｇ−Ｃｕ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或い
は前記眼鏡フレーム用素材を芯材としてその外周側に接
合強度を上げる材料即ちＡｇ。A composite material for eyeglass frames made by cladding with either a stainless steel alloy or an Ag-Cu alloy as a coating material, or a material that increases bonding strength on the outer circumferential side of the eyeglass frame material, which is a core material, that is, Ag.

Ｃｕ、Ｎｉ、それらの合金のいずれかを中心層としてク
ラッドし、さらにその外周側に耐食性を有するＮｉ−Ｃ
ｒ系、Ｃｕ−Ｎｉ系、Ａｇ−Ｐｄ系。Ni-C clad with Cu, Ni, or any of their alloys as a central layer, and which has corrosion resistance on the outer periphery.
r-based, Cu-Ni-based, Ag-Pd-based.

Ａｕ系、ステンレス鋼系、Ａｇ−Ｃｕ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
合素材が開発され、実用化されている。Composite materials for eyeglass frames have been developed and put into practical use by being clad with any one of Au-based, stainless steel-based, and Ag-Cu-based alloys as a coating material.

然し乍ら、プラスチックレンズの開発により、フレーム
にも一層軽量且つ高強度の素材が要求されているが、前
記の各素材ではこの要求にこたえることができないもの
である。However, with the development of plastic lenses, there is a demand for lighter and stronger materials for frames, but the above-mentioned materials cannot meet these demands.

また前記各素材は、芯材であるＴｉ及びＴｉ合金が極め
て活性な金属である為、高温で他の金属と容易に反応し
、脆い金属間化合物を作り易いという致命的な欠点を有
している。従って、加工の際の歪取り焼鈍及び眼鏡フレ
ーム組立の際のろう付、溶接等により脆化層が形成され
る為、前記各素材は実用化されているものの甚だ信頼性
に欠けていた。In addition, each of the above materials has the fatal drawback of easily reacting with other metals at high temperatures and creating brittle intermetallic compounds because the core materials, Ti and Ti alloys, are extremely active metals. There is. Therefore, an embrittlement layer is formed due to strain relief annealing during processing, brazing, welding, etc. during eyeglass frame assembly, and therefore, although each of the above-mentioned materials has been put into practical use, reliability has been severely lacking.

（発明の目的） 本発明は、斯かる欠点を解消すべくなされたものであり
、軽量且つ高強度で、ろう付特性、めっき特性に優れ、
信頼性の高い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。(Objective of the Invention) The present invention has been made to eliminate these drawbacks, and is lightweight, has high strength, has excellent brazing characteristics and plating characteristics,
The purpose is to provide a highly reliable composite material for eyeglass frames.

（発明の構成） 本発明の眼鏡フレーム用複合素材の１つは、Ｂｅ又はＦ
ｅ、Ｃｏ、Ｎｉ、Ｃｕ、Ａｇ、Ｔｌ、Ｚｒ。(Structure of the Invention) One of the composite materials for eyeglass frames of the present invention is Be or F
e, Co, Ni, Cu, Ag, Tl, Zr.

Ａｌ、Ｓｎ、Ｉｎ、Ｇａ、Ｓｉの内少なくとも１種を合
計で７重量％まで含むＢｅ合金を芯材とし、その外周側
にＮｉ−Ｃｒ系、Ｃｕ−Ｎｉ系、Ａｇ−Ｐｄ系、Ａｕ系
、ステンレス鋼系、Ａｇ−Ｃｕ系のいずれかの合金を被
覆材としてクラッドして成るものである。　本発明の眼
鏡フレーム用複合素材の他の１つは、前記芯材と被覆材
との間に、Ａｇ、Ｃｕ、Ｎｉ、それらの合金のいずれか
を中間層としてクラッドして成るものである。The core material is a Be alloy containing at least one of Al, Sn, In, Ga, and Si up to a total of 7% by weight, and the outer periphery is made of a Be alloy containing at least one of Al, Sn, In, Ga, and Si at a total of 7% by weight. , stainless steel type, or Ag-Cu type alloy as a coating material. Another composite material for eyeglass frames of the present invention is one in which Ag, Cu, Ni, or an alloy thereof is clad as an intermediate layer between the core material and the covering material.

本発明の眼鏡フレーム用複合素材に於いて、芯材にＢｅ
又はＢｅ合金を用いる理由は、Ｂｅの軽量性及び高強度
な性質さらに金相学的に他の多くの金属と合金しても脆
化しないという特長を利用する為であり、また粉末冶金
法により容易に加工でき異方性を無くすことができるか
らである。しかも粉末冶金法によって必然的に酸化物が
均−微細に分散し、強度を高めることができるからであ
る。In the composite material for eyeglass frames of the present invention, Be is used as the core material.
Alternatively, the reason for using Be alloy is to take advantage of the light weight and high strength properties of Be, as well as its metallographic characteristics that it does not become brittle even when alloyed with many other metals. This is because it can be processed and anisotropy can be eliminated. Moreover, the powder metallurgy method inevitably disperses the oxide evenly and finely, thereby increasing the strength.

そしてＢｅ合金中に、Ｆｅ、Ｃｏ、Ｎｉ、Ｃｕ。And Fe, Co, Ni, and Cu in the Be alloy.

Ａｇ、Ｔｉ、Ｚｒ、Ａｌ、Ｓｎ、Ｉｎ、Ｇａ、Ｓｉの内
少なくとも１種を合計で７重量％以下含有させる理由は
、Ｂｅ芯材の強度を更に向上させる為で、上記元素以外
でＬＪ脆化層の生成が著しく、また７Ｍ量％を超えると
細線加工が困難となるからである。The reason why at least one of Ag, Ti, Zr, Al, Sn, In, Ga, and Si is contained in a total of 7% by weight or less is to further improve the strength of the Be core material, and to prevent LJ embrittlement with elements other than the above. This is because formation of a hardening layer is significant, and if the amount exceeds 7M, it becomes difficult to process fine wires.

また本発明の眼鏡フレーム用複合素材に於いて、Ｂｅ又
はＢｅ合金の芯材の外周側に、耐食性の良いＮｉ−Ｃｒ
系、Ｃｕ−Ｎｉ系、Ａｇ−Ｐｄ系。In addition, in the composite material for eyeglass frames of the present invention, Ni-Cr, which has good corrosion resistance, is added to the outer peripheral side of the Be or Be alloy core material.
system, Cu-Ni system, Ag-Pd system.

Ａｕ系、ステンレス鋼系、Ａｇ−Ｃｕ系のいずれかの合
金を被覆材としてクラッドする理由は、Ｂｅ又はＢｅ合
金の芯材の表面が強固な酸化物に覆われていて、組立の
際のろう付、溶接及び最終仕上のめっきなどの表面処理
ができないのを改善し、眼鏡フレーム用素材として使用
可能にする為である。The reason for using Au-based, stainless steel-based, or Ag-Cu-based alloy as a cladding material is that the surface of the core material of Be or Be alloy is covered with a strong oxide, which prevents wax from forming during assembly. This is to improve the inability to perform surface treatments such as attaching, welding, and final plating, and to make it usable as a material for eyeglass frames.

芯材に被覆材をクランドする方法としては種々あるが、
芯材にパイプより成る被覆材をかぶせ熱間押出法で作る
のが簡便で且つ性能が良い。There are various ways to clamp the covering material to the core material, but
It is simple and has good performance to cover the core material with a covering material made of pipe and use a hot extrusion method.

本発明の眼鏡フレーム用複合素材の他の１つに於いて、
芯材と被覆材との間に、Ａｇ、Ｃｕ、Ｎｉ。In another composite material for eyeglass frames of the present invention,
Ag, Cu, and Ni between the core material and the covering material.

これらの合金のいずれかを中間層としてクラッドする理
由は、芯材と被覆材の接合強度を向上させる為で、これ
らの金属は芯材、被覆材の双方とも合金化し易く、脆化
層を作らないからである。The reason why one of these alloys is used as an intermediate cladding layer is to improve the bonding strength between the core material and the coating material.These metals tend to alloy with both the core material and the coating material, creating a brittle layer. That's because there isn't.

（実施例） 本発明の眼鏡フレーム用複合素材の実施例について説明
する。(Example) An example of the composite material for eyeglass frames of the present invention will be described.

実施例ＩのＩＩＩ鏡フレーム用複合素材は、純Ｂｅ粉末
を粉末冶金法により直径３２１．長さ５Ｑ＋ｎのインゴ
ットに圧縮焼結成形し、これに被覆材としてＮｉ−Ｃｒ
ｌＯ重量％より成る内径３３＊ｖａ、厚さ２１１゜長さ
６０ｍｍのパイプを嵌着し、熱間圧縮、熱間押出に続く
細線加工で製作したもので、この複合素材の直径は３　
ａｓであり、被覆材の厚みは１００μｍであった。The composite material for the mirror frame III of Example I was made of pure Be powder using a powder metallurgy method to form a material with a diameter of 321 mm. It is compressed and sintered into an ingot with a length of 5Q+n, and coated with Ni-Cr as a covering material.
A pipe with an inner diameter of 33*VA, a thickness of 211°, and a length of 60 mm made of 10% by weight was fitted, and the composite material was manufactured by hot compression and hot extrusion followed by fine wire processing, and the diameter of this composite material was 3.
as, and the thickness of the covering material was 100 μm.

実施例２の眼鏡フレーム用複合素材は、粉末冶合法によ
りＢｅ−Ｃｕ１重量％より成る直径３２ｖｓ＊。The composite material for eyeglass frames of Example 2 was made of 1% by weight of Be-Cu using a powder metallurgy method and had a diameter of 32 vs*.

長さ５０ｍ■のインゴットに圧縮焼結成形し、これに中
間層としてＡ　ｇ　−Ｃｕ　１０重量％より成る内径３
２．５ｍｍ、厚さ　０．５ｍｍ、長さ５０６のパイプ及
び被覆材としてに２０金合金より成る内径３３鶴、厚さ
　１．Ｏｗｍ。An ingot with a length of 50 m was formed by compression sintering, and an intermediate layer with an inner diameter of 3 consisting of 10% by weight of A g -Cu was formed.
A pipe with a diameter of 2.5 mm, a thickness of 0.5 mm, a length of 506 mm, and a covering material made of 20 gold alloy, an inner diameter of 33 mm, and a thickness of 1. Owm.

長さ６０ｍｍのパイプを嵌着し、熱間圧縮、熱間押出に
続く細線加工で劇作したもので、この複合素材の直径は
３ｍｍであり、被覆材の厚みは４２μｍ、中間層の厚み
は５．５μｍであった。It was made by fitting a 60mm long pipe and using hot compression and hot extrusion followed by fine wire processing.The diameter of this composite material is 3mm, the thickness of the covering material is 42μm, and the thickness of the intermediate layer is 5mm. It was .5 μm.

然してこれら実施例１．２の眼鏡フレーム用複合素材と
、純Ｔｉ　　（、ＪＩＳ　　Ｔｉ２種）の芯材の外周側
に厚さ５．５μｍのＡ　ｇ　−Ｃｕ　１０重量％より成
る中間層がクラッドされ、さらにその外周側に厚さ　１
００μｍのＮｉ−ＣｒｌＯ重量％より成る被覆材がクラ
ッドされた直径３鶴の眼鏡フレーム用複合素材（従来例
）及び純Ｂｅより成る直径３１の眼鏡フレーム用素材（
比較例）の比重、引張強度。However, the composite material for eyeglass frames of Example 1.2 and an intermediate layer made of 10% by weight of Ag-Cu with a thickness of 5.5 μm were clad on the outer peripheral side of the pure Ti (JIS Ti type 2) core material. , furthermore, there is a thickness of 1 on the outer circumference side.
A composite material for eyeglass frames with a diameter of 3 cranes (conventional example) clad with a coating material made of 00 μm Ni-CrlO weight% and a material for eyeglass frames with a diameter of 31 mm made of pure Be (
Comparative example) specific gravity and tensile strength.

比強度（引張強度／比重）、ろう付強度、めっき特性に
ついて測定し、試験した処、下記の表に示すような結果
を得た。The specific strength (tensile strength/specific gravity), brazing strength, and plating properties were measured and tested, 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１，２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べ
て比重が小さくて軽量であり、また引張強度、比較度が
著しく高く、さらにろう付強度が高くてろう付特性に優
れ、しかも比較例の眼鏡フレーム用素材に比べて従来例
と同様にめっき特性に優れていることが判る。As is clear from the table above, the composite materials for eyeglass frames of Examples 1 and 2 have a lower specific gravity and are lighter than the conventional composite materials for eyeglass frames, and also have significantly higher tensile strength and comparative strength. Furthermore, it can be seen that the brazing strength is high and the brazing properties are excellent, and the plating properties are also excellent as in the conventional example compared to the eyeglass frame material of the comparative example.

（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、
軽量且つ高強度であり、しかもろう付特性、めっき特性
に優れているので、従来の眼鏡フレーム用複合素材に代
替して眼鏡着用者が活動し易く、掛心地の良い信頼性の
高い眼鏡フレームを容易に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 is lightweight and strong, and has excellent brazing and plating properties, so it can be used as an alternative to conventional composite materials for eyeglass frames to provide comfortable and reliable eyeglass frames that are easy for eyeglass wearers to carry out activities. It has the effect of being easily obtainable.

Claims (1)

【特許請求の範囲】 １）Ｂｅ又はＦｅ、Ｃｏ、Ｎｉ、Ｃｕ、Ａｇ、Ｔｉ、Ｚ
ｒ、Ａｌ、Ｓｎ、Ｉｎ、Ｇａ、Ｓｉの内少なくとも１種
を合計で７重量％まで含むＢｅ合金を芯材とし、その外
周側にＮｉ−Ｃｒ系、Ｃｕ−Ｎｉ系、Ａｇ−Ｐｄ系、Ａ
ｕ系、ステンレス鋼系、Ａｇ−Ｃｕ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）Ｂｅ又はＦｅ、Ｃｏ、Ｎｉ、Ｃｕ、Ａｇ、Ｔｉ、Ｚ
ｒ、Ａｌ、Ｓｎ、Ｉｎ、Ｇａ、Ｓｉの内少なくとも１種
を合計で７重量％まで含むＢｅ合金を芯材とし、その外
周側にＡｇ、Ｃｕ、Ｎｉ、それらの合金のいずれかを中
間層としてクラッドし、さらにその外周側にＮｉ−Ｃｒ
系、Ｃｕ−Ｎｉ系、Ａｇ−Ｐｄ系、Ａｕ系、ステンレス
鋼系、Ａｇ−Ｃｕ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) Be or Fe, Co, Ni, Cu, Ag, Ti, Z
The core material is a Be alloy containing at least one of r, Al, Sn, In, Ga, and Si up to 7% by weight in total, and the outer periphery is made of a Be alloy containing Ni-Cr, Cu-Ni, Ag-Pd, A
A composite material for eyeglass frames made by cladding with any one of U-based, stainless steel-based, and Ag-Cu-based alloys as a covering material. 2) Be or Fe, Co, Ni, Cu, Ag, Ti, Z
The core material is a Be alloy containing at least one of r, Al, Sn, In, Ga, and Si up to 7% by weight in total, and the intermediate layer is made of Ag, Cu, Ni, or any of these alloys on the outer peripheral side. clad with Ni-Cr on the outer circumferential side.
A composite material for eyeglass frames made of a cladding material made of any one of the following alloys: Cu-Ni, Ag-Pd, Au, stainless steel, and Ag-Cu.