JPH0342239A - Clad material for glasses frame - Google Patents
Clad material for glasses frameInfo
- Publication number
- JPH0342239A JPH0342239A JP17868989A JP17868989A JPH0342239A JP H0342239 A JPH0342239 A JP H0342239A JP 17868989 A JP17868989 A JP 17868989A JP 17868989 A JP17868989 A JP 17868989A JP H0342239 A JPH0342239 A JP H0342239A
- Authority
- JP
- Japan
- Prior art keywords
- intermediate layer
- alloy
- corrosion resistance
- core material
- gold
- 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
- 239000000463 material Substances 0.000 title claims abstract description 87
- 239000011521 glass Substances 0.000 title abstract description 5
- 239000011162 core material Substances 0.000 claims abstract description 36
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010931 gold Substances 0.000 claims abstract description 16
- 229910052737 gold Inorganic materials 0.000 claims abstract description 16
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 15
- 229910001020 Au alloy Inorganic materials 0.000 claims abstract description 12
- 239000003353 gold alloy Substances 0.000 claims abstract description 12
- 229910000990 Ni alloy Inorganic materials 0.000 claims abstract description 10
- 238000005253 cladding Methods 0.000 claims description 22
- 229910052719 titanium Inorganic materials 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 abstract description 33
- 238000005260 corrosion Methods 0.000 abstract description 33
- 238000010438 heat treatment Methods 0.000 abstract description 20
- 230000006866 deterioration Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005476 soldering Methods 0.000 abstract 1
- 239000010936 titanium Substances 0.000 description 18
- 238000005219 brazing Methods 0.000 description 13
- 229910000765 intermetallic Inorganic materials 0.000 description 7
- 239000000523 sample Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 238000010622 cold drawing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、軽量であると共に、耐食性及び加工性に優れ
ており、めがねフレーム用材料として好適なめがねフレ
ーム用クラッド材に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a cladding material for eyeglass frames that is lightweight, has excellent corrosion resistance and workability, and is suitable as a material for eyeglass frames.
（従来技術〕
金属製のめがねフレーム、所謂メタルフレームは、レン
ズを固定保持するアイリム部、左右のアイリム部を連結
するブリッジ部、フレーム全体を左右の葺上に保持させ
るためのテンプル部、及びこれらのテンプル部を左右の
アイリム部に夫々連結するためのヒンジ部等の構成部品
を、スウェージング、圧延等の冷間加工により所定形状
に各別に成形加工した後、これらをろう付けにて連結し
て構成されており、めがねフレーム用材料には優れた加
工性が要求される。また、耐食性に優れ、劣悪な環境下
においても腐食による外観の劣化が少ないこと、及び装
着時における負担軽減のため可及的に軽量であることが
、めがねフレームとしての製品化後に要求される。(Prior Art) A metal eyeglass frame, a so-called metal frame, consists of an eye rim part that holds the lenses fixedly, a bridge part that connects the left and right eye rim parts, a temple part that holds the entire frame on the left and right roofs, and these parts. The component parts such as the hinge parts for connecting the temple parts of the temple to the left and right eye rim parts, respectively, are separately formed into a predetermined shape by cold working such as swaging or rolling, and then these parts are connected by brazing. Materials for eyeglass frames are required to have excellent workability.They also have excellent corrosion resistance, with little deterioration of appearance due to corrosion even in harsh environments, and to reduce the burden when worn. After commercialization as an eyeglass frame, it is required to be as light as possible.
以上の如き要求を満たし得る材料としてチタンがあり、
Ｔｉ又はＴｉ合金はめがねフレーム用材料として広く使
用されている。更に近年にあっては、製品化後に高級感
を付与せしめるべく、Ｔｉ又はＴｉ合金からなる芯材に
金又は金合金からなる表面材を被着せしめたものがめが
ねフレーム用材料として実用化されている。芯材に表面
材を被着せしめる一般的な方法としてメツキ処理がある
が、Ｔｉへのメツキ処理は、Ｔｉが化学的に不動態であ
るために、前処理に多大の手間を要する上、メツキ膜の
密着性が極めて悪く、メツキ層が剥離し易いという難点
があって実用的な方法ではない。そこで、Ｔｉ又はＴｉ
合金からなる芯材に金又は金合金からなる表面材をクラ
ッドしてなる複合材（クラッド材）の開発が、めがねフ
レーム用材料の開発の主流となっている。Titanium is a material that can meet the above requirements.
Ti or Ti alloys are widely used as materials for eyeglass frames. Furthermore, in recent years, materials in which a surface material made of gold or gold alloy is coated on a core material made of Ti or Ti alloy have been put into practical use as materials for eyeglass frames in order to give a sense of luxury after commercialization. There is. Plating is a common method for attaching a surface material to a core material, but since Ti is chemically passive, plating requires a lot of time and effort in pretreatment, and plating is difficult. This is not a practical method because the adhesion of the film is extremely poor and the plating layer easily peels off. Therefore, Ti or Ti
The development of composite materials (clad materials) consisting of a core material made of an alloy clad with a surface material made of gold or a gold alloy has become the mainstream in the development of materials for eyeglass frames.
ところが、Ｔｉ又はＴｉ合金と金又は金合金とを直接的
に拡１１に接合せしめた場合、接合界面に、例えばＴ
ｉｚ Ａ ｕ ＋ Ｔ ｉ Ａ ｕ ｚ等の極めて脆い
金属間化合物が生成されることは避けられず、このよう
なりラッド材をめがねフレーム用材料として使用した場
合、前述した如き構成部品への冷間での成形加工に際し
、接合部に剥離が生しるという難点がある。従って、め
がねフレーム用クラッド材の開発においては、Ｔｉ又は
Ｔｉ合金からなる芯材と金又は金合金からなる表面材と
の間に中間層を介在せしめ、前述した如き金属間化合物
の発生を防止して接合強度を高めることが開発の主題と
なっており、特開昭６０−１４９７８９号及び特開昭６
０−５４２６９号公報には、前記中間層としてＮｉ又は
Ｎ１合金を用いてなるクラッド材が提案されており、ま
た特開昭（ｉ２−２１２１３８号及び特開昭６３−７８
７４１号公報には、芯材側にＮｂからなる中間層を、表
面材側にＮｉ又はＮｉ合金からなる中間層を夫々介在せ
しめてなるクラッド材が提案されている。However, when Ti or a Ti alloy and gold or a gold alloy are directly bonded to each other, for example, T is added to the bonding interface.
It is unavoidable that extremely brittle intermetallic compounds such as iz A u + T i A u z are formed, and when such rad material is used as a material for eyeglass frames, it is possible to During molding, there is a problem in that peeling occurs at the joints. Therefore, in the development of cladding materials for eyeglass frames, an intermediate layer is interposed between the core material made of Ti or Ti alloy and the surface material made of gold or gold alloy to prevent the generation of intermetallic compounds as described above. The subject of development is to increase the bonding strength by
No. 0-54269 proposes a cladding material using Ni or N1 alloy as the intermediate layer;
No. 741 proposes a cladding material in which an intermediate layer made of Nb is interposed on the core side and an intermediate layer made of Ni or a Ni alloy is interposed on the surface side.
ところが、前記特開昭６０−１４９７８９号及び特開昭
６０−５４２６９号公報に開示されたクラッド材におい
ては、接合強度は確実に向上し、冷間加工時における接
合部の剥離の問題は解消されるが、その後のめがねフレ
ームとしての組立てに際し、ろう付けに伴う接合部への
入熱により、中間層であるＮｉと芯材であるＴｉとの間
に金属間化合物が生成され、接合強度が低下して局所的
な剥離が発生し、製品化後における耐食性に悪影響が生
しるという難点があった。However, in the clad materials disclosed in JP-A-60-149789 and JP-A-60-54269, the bonding strength is reliably improved and the problem of peeling of the bonded portion during cold working is resolved. However, during subsequent assembly into the eyeglass frame, heat input into the joint due to brazing generates intermetallic compounds between the intermediate Ni layer and the core Ti, reducing joint strength. However, there is a problem in that local peeling occurs, which adversely affects the corrosion resistance of the product after it is manufactured.
特開昭６２−２１２１３８号及び特開昭６３−７８７４
１号公報に開示されたクラッド材は、ＮｉとＴｉとの間
の金属間化合物の生成を、両者間に介在せしめたＮｂか
らなる中間層にて抑制し、ろう付けに伴う接合強度の低
下をも防止しようとしたものである。ところがろう付け
に際しては、入熱部近傍の温度が、極めて短時間にて９
００℃前後にも達することがあり、このような場合、接
合強度の低下をＮｂからなる中間層にて抑制することが
困難であり、製品化後における接合部強度の低下及び耐
食性の劣化を防止するためには、ろう付は時における入
熱量を厳密に管理する必要があった。JP-A-62-212138 and JP-A-63-7874
The cladding material disclosed in Publication No. 1 suppresses the formation of intermetallic compounds between Ni and Ti with an intermediate layer made of Nb interposed between the two, and prevents the decrease in bonding strength due to brazing. It was also attempted to prevent this. However, during brazing, the temperature near the heat input part can rise to 90% in a very short time.
In such cases, it is difficult to suppress the decrease in joint strength with an intermediate layer made of Nb, and prevent the decrease in joint strength and deterioration of corrosion resistance after commercialization. To achieve this, it was necessary to strictly control the amount of heat input during brazing.
本発明は斯かる事情に鑑みてなされたものであり、Ｔｉ
又はＴｉ合金からなる芯材に、金又は金合金からなる表
面材を被着してなり、製品化後における高い接合強度と
優れた耐食性とを容易に確保し得るめがねフレーム用ク
ラ・ノド材を提供することを目的とする。The present invention was made in view of such circumstances, and it
Or, we have made a core material made of Ti alloy coated with a surface material made of gold or gold alloy, and can easily ensure high bonding strength and excellent corrosion resistance after commercialization. The purpose is to provide.
本発明に係るめがねフレーム用クラッド材は、Ｔｉ又は
Ｔｉ合金製の芯材に金又は金合金製の表面材を被着して
なるめがねフレーム用クラッド材において、前記芯材と
前記表面材との間に、Ｔａからなる第１中間層と、Ｎｉ
又はＮｉ合金からなる第２中間層とを、芯材側からこの
順に介在させてあることを特徴とする。The cladding material for eyeglass frames according to the present invention is a cladding material for eyeglass frames in which a core material made of Ti or Ti alloy is coated with a surface material made of gold or gold alloy, in which the core material and the surface material are bonded together. In between, a first intermediate layer made of Ta and Ni
Alternatively, a second intermediate layer made of a Ni alloy is interposed in this order from the core material side.
本発明においては、Ｔａからなる第１中間層により、第
２中間層と芯材との間における金属間化合物の生成を抑
制し、各中間層と芯材及び表面材との間の接合界面での
高い接合強度を維持し、めがねフレームとしての製品化
後における優れた耐食性を確保する。In the present invention, the first intermediate layer made of Ta suppresses the formation of intermetallic compounds between the second intermediate layer and the core material, and at the bonding interface between each intermediate layer, the core material, and the surface material. maintains high joint strength and ensures excellent corrosion resistance after commercialization as an eyeglass frame.
以下本発明をその実施例に基づいて詳述する。 The present invention will be described in detail below based on examples thereof.
前述した如＜、ＴＩ又はＴｉ合金からなる芯材に金又は
金合金からなる表面材を直接的に拡散接合させた場合、
接合界面に極めて脆い金属間化合物が生成され、高い接
合強度が得られないこと、この難点は、両者間に中間層
を介在せしめることにより、ある程度解消し得ることは
従来から公知となっている。本発明者は、めがねフレー
ム用材料として最適なりラッド材を見出すべく、種々の
金属材料からなる中間層を介在させてクラッド材を製作
し、得られたクラット材の夫々に対し、接合状態の良否
、耐食性の優劣、及び冷間での加工性の良否を判定する
比較試験を行った結果、第１図に横断面形状を示す如＜
、Ｔｉ又はＴｉ合金からなる芯材１と金又は金合金から
なる表面材２との間に、Ｔａからなる第１中間層３とＮ
ｉ又はＮｉ合金からなる第２中間層４とを芯材１側から
この順に介在せしめてなるクラッド材において、前記各
試験の全てに対し満足できる判定結果が得られ、更に、
ろう付けの際の到達温度に相当する９００°Ｃまでの加
熱後において、接合状態の良否及び耐食性の優劣に関し
て加熱前と同様の結果が得られることを知見した。As mentioned above, when a surface material made of gold or a gold alloy is directly diffusion bonded to a core material made of TI or a Ti alloy,
It has long been known that extremely brittle intermetallic compounds are generated at the bonding interface, making it impossible to obtain high bonding strength.This difficulty can be overcome to some extent by interposing an intermediate layer between the two. In order to find a cladding material that is optimal as a material for eyeglass frames, the present inventor manufactured cladding materials with intermediate layers made of various metal materials, and tested each of the obtained cladding materials to determine whether the bonding state was good or not. As a result of a comparative test to determine the superiority or inferiority of corrosion resistance and cold workability, the cross-sectional shape is shown in Figure 1.
, a first intermediate layer 3 made of Ta and N between a core material 1 made of Ti or a Ti alloy and a surface material 2 made of gold or a gold alloy.
In the cladding material in which the second intermediate layer 4 made of Ni or Ni alloy is interposed in this order from the core material 1 side, satisfactory judgment results were obtained for all of the above tests, and further,
It has been found that after heating to 900°C, which corresponds to the temperature reached during brazing, the same results as before heating can be obtained regarding the quality of the bonding state and the corrosion resistance.
次に前述の比較試験の一例につき具体的に説明する。こ
の比較試験には、第２図に示す如きクラッド素材１０を
、以下に示す如く成形して得られた円形断面のクラッド
線材を供試材として行った。Next, an example of the above-mentioned comparative test will be specifically explained. In this comparative test, a clad wire rod having a circular cross section obtained by molding the clad material 10 as shown in FIG. 2 as shown below was used as a test material.
第２図において、１１はＴｉ又はＴｉ合金製の円柱形を
なす芯素材であり、１２は金又は会合金製の円筒形をな
す表面素材である。また１３は、後述の第１表に示す如
き夫々の材料からなり、半径方向に１層又は２層の円筒
形をなす中間層素材である。クラッド素材１０は、芯素
材１１を中間層素材１３に内嵌し、次いでこれらを表面
素材１２に内嵌し、更にこれらをＮｉ−Ｆｅ合金からな
る円筒形の保護林１４（外径７０■）に内嵌して、これ
ら全てを所定の真空度に維持された真空チャンバ内に配
した後、保護林１４の両端開口部にこれと同材質の蓋板
１５．１６を電子ビーム溶接にて固着して構成される。In FIG. 2, 11 is a cylindrical core material made of Ti or Ti alloy, and 12 is a cylindrical surface material made of gold or alloy. Reference numeral 13 denotes an intermediate layer material made of the materials shown in Table 1 below and having a cylindrical shape with one or two layers in the radial direction. The cladding material 10 is made by fitting a core material 11 into an intermediate layer material 13, then fitting these into a surface material 12, and then forming a cylindrical protection forest 14 (outer diameter 70 cm) made of Ni-Fe alloy. After placing all of these in a vacuum chamber maintained at a predetermined degree of vacuum, cover plates 15 and 16 made of the same material are fixed to the openings at both ends of the protected forest 14 by electron beam welding. It is composed of
これにより、２〜３ Ｘ １０− ’Ｔｏｒｒ程度の高
真空状態に保たれた保護林１４内において、芯素材１１
、中間層素材１３及び表面素材１２が、内側からこの順
に積層された状態となる。前記供試材は、このようにし
て得られたクラッド素材１０を６００℃〜９００℃とな
るまで加熱し、次いで、３個のロールを有する傾斜圧延
機により、外径が２０ｍｍとなるまで延伸圧延し、更に
冷間抽伸にて外径が５ｍｍとなるまで縮径加工を施した
後、最外層の保護材１４を硝フン酸にて溶解除去せしめ
、更に、冷間ダイス抽線により外径が２．５ｍｍとなる
まで縮径することにより得た。なお表面材としては、７
５％＾ｕ−１５％Ａｇ−１０％Ｃｕなる組成を有する、
所謂１８金を用い、また芯材としては、ＪＩＳ２種の純
Ｔｉを用いている。夫々の供試材における中間層の材料
、並びに成形前の保護材、表面材、中間層及び芯材の寸
法を第１表に示す。As a result, the core material 11 is
, the intermediate layer material 13 and the surface material 12 are stacked in this order from the inside. The sample material was obtained by heating the cladding material 10 obtained in this way to 600°C to 900°C, and then elongating it using an inclined rolling mill with three rolls until the outer diameter became 20mm. After further reducing the outer diameter by cold drawing until the outer diameter becomes 5 mm, the outermost protective material 14 is dissolved and removed with nitric acid, and the outer diameter is further reduced by cold drawing. It was obtained by reducing the diameter to 2.5 mm. In addition, as a surface material, 7
It has a composition of 5%^u-15%Ag-10%Cu,
So-called 18-karat gold is used, and JIS Class 2 pure Ti is used as the core material. Table 1 shows the material of the intermediate layer and the dimensions of the protective material, surface material, intermediate layer, and core material before molding for each sample material.
（以下余白）
第
表
（以
下
余
白）
この第１表中、ＮＯ，６及びＮ０９７が本発明に係るク
ラッド材であり、Ｎ０９６においては、第１図における
第１中間層３がＴａ、第２中間層４がＮｉとなっており
、またＮ００７においては、第１中間層３がＴａ。(Hereinafter in the margin) Table 1 (hereinafter in the margin) In this Table 1, NO, 6 and N097 are the clad materials according to the present invention, and in N096, the first intermediate layer 3 in FIG. The layer 4 is made of Ni, and in N007, the first intermediate layer 3 is made of Ta.
第２中間層４が９０％Ｎｉ−７％Ｃｒ−３％Ｃｏとなっ
ている。The second intermediate layer 4 is made of 90%Ni-7%Cr-3%Co.
またＮｏ、１−ＮＯ，５は比較例であって、これらの内
、Ｎｏ、１〜Ｎ０．４は、夫々Ｎｂ、Ｔａ、Ｎｉ、 ９
０％Ｎｉ−７％Ｃｒ−３％Ｃ。Moreover, No. 1-No. 5 are comparative examples, and among these, No. 1 to No. 4 are Nb, Ta, Ni, 9, respectively.
0%Ni-7%Cr-3%C.
からなる単一の中間層を有するクラッド材であり、Ｎ０
９５は、芯材と表面材との間に、Ｎｂからなる中間層と
Ｎｉからなる中間層とを芯材側からこの順に介在せしめ
てなるクラッド材であり、前述した特開昭６２−２１２
１３８号及び特開昭６３−７８７４１号公報にて提案さ
れているものである。It is a cladding material with a single intermediate layer consisting of N0
No. 95 is a cladding material in which an intermediate layer made of Nb and an intermediate layer made of Ni are interposed between a core material and a surface material in this order from the core material side, and is disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 62-212.
No. 138 and Japanese Unexamined Patent Publication No. 63-78741.
以上の如き７種の供試材の夫々に対し、接合界面におけ
る接合状態の良否、界面における耐食性の優劣、及び加
工性の良否を判定する試験を行った結果を第２表に示す
。なお、接合状態の良否の判定は、接合界面の電子顕微
鏡による硯察結果に基づいて行い、耐食性の優劣の判定
は、食塩、酢酸及び塩化銅を含有する腐食液を供試材に
所定時間噴霧した後における接合状態の良否により、ま
た加工性の良否は、前述した如く、直径２．５＋＋＋ｍ
の円形断面を有する供試材を、平圧延加工により厚さ１
．５ｍｍにまで偏平化した後における接合状態の良否に
より夫々判定した。なお接合状態及び耐食性に関する試
験は、めがねフレームへの組立てにおいて必要なろう付
けの際の到達温度（９００’ｃ）にまでの加熱前後にお
いて夫々行い、ろう付けによる接合強度及び耐食性の劣
化の有無も調べた。Table 2 shows the results of tests to determine the quality of the bonding state at the bonding interface, the corrosion resistance at the interface, and the workability of each of the seven types of test materials as described above. The quality of the bond is determined based on the results of an electron microscope inspection of the bonded interface, and the corrosion resistance is determined by spraying a corrosive solution containing salt, acetic acid, and copper chloride onto the test material for a predetermined period of time. As mentioned above, the quality of the welding condition after bonding and the quality of workability are determined by
A test material with a circular cross section was flat rolled to a thickness of 1
．． Each was judged based on the quality of the bonded state after flattening to 5 mm. Tests regarding the bonding condition and corrosion resistance were conducted before and after heating to the temperature reached (900'C) during brazing, which is necessary for assembly to the eyeglass frame, and whether or not there was any deterioration in bonding strength and corrosion resistance due to brazing. Examined.
（以 下 余 白）
第
表
似
下
余
白）
この表中における◎は、電子顕微鏡による２０Ｃ）０倍
の倍率での接合界面の観察の結果、欠陥が全く確認され
なかった場合、○は、数個所の空隙状欠陥、所謂ボイド
の発生が確認された場合、△は、多数のボイドが生して
いる場合、更に×は、接合界面にｆ、１ 離の発生が確
認された場合を夫々示している。(Left below margin) Table below (Bottom margin) In this table, ◎ indicates that no defects were observed as a result of observation of the bonding interface using an electron microscope at 20C) 0x magnification; When the occurrence of a void-like defect, so-called void, is confirmed, △ indicates a case where a large number of voids are generated, and × indicates a case where the occurrence of f,1 distance is confirmed at the bonding interface. ing.
この試験の結果、次のことが明らかである。Ｎｂからな
る単一の中間層を有するＮｏ、１の供試材、及びＴａか
らなる単一の中間層を有するＮＯ，２の供試（オにおい
ては、界面の接合状態は加熱前後において共に良好であ
り、加熱前の耐食性もまた共に優良であるが、加工後に
おける接合界面には多数のボイドが観察され、加工性が
良好であるとは言い難く、めがねフレーム用材料として
適当ではない。As a result of this test, the following is clear. Specimen No. 1 has a single intermediate layer made of Nb, and specimen No. 2 has a single intermediate layer made of Ta (in E, the interface bonding state was good both before and after heating. Although the corrosion resistance before heating is also excellent, many voids are observed at the joint interface after processing, and it is difficult to say that the workability is good, making it unsuitable as a material for eyeglass frames.
なお、Ｎ０１１の供試材においては、加熱後における耐
食性の劣化が認められた。In addition, in the test material of N011, deterioration of corrosion resistance was observed after heating.
また、Ｎｉからなる単一の中間層を有するＮＯ，３の供
試材、及びＮｉ合金からなるＮｏ、４の供試材において
は、いずれも加熱前の接合状態は優良であり、また加工
に伴う接合状態の劣化は認められず、加工性は共に優良
であると言えるが、加熱後における接合界面には多数の
ボイドが確認された上、耐食性に劣り、特に加熱後にお
ける耐食試験の結果、ｆｆ１ｌ離部が生じていることが
誌められた。これは、Ｎｉ又はＮｉ合金からなる中間層
と、芯材たるＴｉ又はＴｉ合金との間の金属間化合物の
生成が、加熱により助長されるためである。In addition, in specimen No. 3, which has a single intermediate layer made of Ni, and specimen No. 4, which consists of Ni alloy, the bonding state before heating was excellent, and it was difficult to process. No accompanying deterioration of the joint condition was observed, and both workability can be said to be excellent.However, many voids were confirmed at the joint interface after heating, and the corrosion resistance was poor, especially as a result of the corrosion resistance test after heating. It was noted that ff1l separation had occurred. This is because heating promotes the formation of intermetallic compounds between the intermediate layer made of Ni or Ni alloy and the core material Ti or Ti alloy.
更に、ＮｉとＮｂとからなる２層の中間層を有するＮ０
０５の供試材においては、加熱前における接合状態が優
良であることは勿論、耐食試験後及び加工後においても
接合状態は優良であるが、加熱後における接合界面に若
干のボイドが確認され、また、加熱後に耐食試験を行っ
た場合、接合界面に多数のボイドが確認された。このこ
とから、Ｎ００５の供試材をめがねフレーム用材料とし
て用いた場合、組立てに際してのろう付けにより耐食性
が悪化し、長年の使用により美観が損なわれる虞がある
。Furthermore, N0 has two intermediate layers consisting of Ni and Nb.
In the sample material No. 05, the bonding condition was of course excellent before heating, and the bonding condition was also excellent after the corrosion resistance test and after processing, but some voids were confirmed at the bonding interface after heating. Furthermore, when a corrosion resistance test was conducted after heating, many voids were observed at the bonding interface. For this reason, when the N005 sample material is used as a material for eyeglass frames, there is a risk that the corrosion resistance will deteriorate due to brazing during assembly, and the aesthetic appearance may be impaired after long-term use.
以上の各供試材に対し、Ｔａからなる第１中間層とＮｉ
からなる第２中間層とを有するＮＯ，６の供試材、及び
Ｔａからなる第１中間層とＮｉ合金からなる第２中間層
とを有するＮｏ、 ７の供試材においては、全ての試験
項目においていずれも優良であるとの判定結果が得られ
た。このことから、Ｎ００６及びＮ００７の供試材、即
ち本発明に係るクラッド材は、めがねフレームの各構成
部品への加工性、並びにろう付は後における接合状態及
び耐食性が優良であり、めがねフレーム用材料として好
適なものであると言える。なおＮｂとＴａとでは、後者
によって大きい耐食性改善効果が得られることは、Ｎｏ
、１の供試材とＮ００２の供試材とにおける耐食性試験
の結果比１咬によっても明らかである。For each of the above test materials, the first intermediate layer made of Ta and the Ni
All tests were carried out for specimen No. 6 having a second intermediate layer made of Ta and specimen No. 7 having a first intermediate layer consisting of Ta and a second intermediate layer consisting of Ni alloy. All items were judged to be excellent. From this, the sample materials of N006 and N007, that is, the cladding material according to the present invention, have excellent workability into each component of eyeglass frames, as well as excellent bonding conditions and corrosion resistance after brazing, and are suitable for use in eyeglass frames. It can be said that it is suitable as a material. It should be noted that between Nb and Ta, it is no secret that the latter has a greater effect of improving corrosion resistance.
This is also clear from the comparison of the results of the corrosion resistance test between the sample material No. 1 and the sample No. 002, which is 1 bite.
なおＮ０１５の供試材における加熱の影響を更に調べる
べく、加熱温度を種々に変更して加熱後の耐食性試験を
行った結果、加熱温度が８００°Ｃを超えると共に耐食
性の劣化が著しくなり、この劣化は、Ｔｉからなる芯材
と、Ｎｂからなる中間層との界面において生じることが
判明した。前述した如くめがねフレームへの組立てにお
けるろう付けの際には、ろう付は部近傍の温度が９００
℃を超えることもあり、このような場合、ＮＯ，５の供
試材においては耐食性の劣化が生じることは避けられな
い。In order to further investigate the effects of heating on the N015 test material, we conducted post-heating corrosion resistance tests at various heating temperatures, and found that as the heating temperature exceeded 800°C, the corrosion resistance deteriorated significantly. It has been found that deterioration occurs at the interface between the core material made of Ti and the intermediate layer made of Nb. As mentioned above, when brazing in the assembly to the glasses frame, the temperature near the brazing part is 900°C.
℃, and in such a case, it is inevitable that the corrosion resistance of the NO.5 test material would deteriorate.
なお、表面材として１４金又は１２金を用い、芯材とし
てＴｉ合金を用いた場合においても第２表に示すものと
全く同様の結果が得られ、本発明は、Ｔｉ又はＴｉ合金
からなる芯材に金又は金合金からなる表面材を被着して
なるクラッド材全般に適用可能であることが明らかとな
った。Furthermore, even when 14-karat gold or 12-karat gold is used as the surface material and a Ti alloy is used as the core material, exactly the same results as those shown in Table 2 are obtained, and the present invention can be applied to a core made of Ti or a Ti alloy. It has become clear that the present invention can be applied to all cladding materials in which a surface material made of gold or gold alloy is applied to the material.
以上詳述した如く本発明に係るめがねフレーム用クラフ
ト材においては、Ｔｉ又はＴｉ合金からなる芯材と金又
は金合金からなる表面材との間に芯材側に介在せしめら
れたＴａからなる第１中間層が、高温への加熱後におけ
る耐食性の劣化を防止する作用をなし、また表面材側に
介在せしめられたＮｉ又はＮｉ合金からなる第２中間層
が、加工性の改善作用をなすから、めがねフレームの各
構成部品への加工及びめがねフレームとしての、組立て
に際してのろう付けにより、接合強度及び耐食性が劣化
することがなく、製品化後においても高い接合強度と優
れた耐食性とが確保される等、本発明は優れた効果を奏
する。As described in detail above, in the craft material for eyeglass frames according to the present invention, a Ta layer made of Ta is interposed on the core material side between the core material made of Ti or Ti alloy and the surface material made of gold or gold alloy. The first intermediate layer acts to prevent deterioration of corrosion resistance after heating to high temperatures, and the second intermediate layer made of Ni or Ni alloy interposed on the surface material side acts to improve workability. By processing each component of the eyeglass frame and brazing it during assembly, the joint strength and corrosion resistance do not deteriorate, and even after commercialization, high joint strength and excellent corrosion resistance are ensured. The present invention has excellent effects such as:
第１図は本発明に係るめがねフレーム用クラッド材の拡
大横断面図、第２図は本発明に係るめがねフレーム用ク
ラッド材の素材となるクラッド素材の一部破断側面図で
ある。
１・・・芯材 ２・・・表面材 ３・・・第１中間
層４・・・第２中間層FIG. 1 is an enlarged cross-sectional view of the cladding material for eyeglass frames according to the present invention, and FIG. 2 is a partially cutaway side view of the cladding material that is the material of the cladding material for eyeglass frames according to the present invention. 1... Core material 2... Surface material 3... First intermediate layer 4... Second intermediate layer
Claims (1)
材を被着してなるめがねフレーム用クラッド材において
、 前記芯材と前記表面材との間に、Ｔａからなる第１中間
層と、Ｎｉ又はＮｉ合金からなる第２中間層とを、芯材
側からこの順に介在させてあることを特徴とするめがね
フレーム用クラッド材。[Scope of Claims] 1. A cladding material for eyeglass frames comprising a core material made of Ti or Ti alloy and a surface material made of gold or gold alloy, wherein between the core material and the surface material, A cladding material for eyeglass frames, characterized in that a first intermediate layer made of Ta and a second intermediate layer made of Ni or Ni alloy are interposed in this order from the core side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17868989A JPH0342239A (en) | 1989-07-10 | 1989-07-10 | Clad material for glasses frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17868989A JPH0342239A (en) | 1989-07-10 | 1989-07-10 | Clad material for glasses frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0342239A true JPH0342239A (en) | 1991-02-22 |
Family
ID=16052828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17868989A Pending JPH0342239A (en) | 1989-07-10 | 1989-07-10 | Clad material for glasses frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342239A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6239230A (en) * | 1985-08-16 | 1987-02-20 | 田中貴金属工業株式会社 | Composite blank for decorating and manufacture thereof |
-
1989
- 1989-07-10 JP JP17868989A patent/JPH0342239A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6239230A (en) * | 1985-08-16 | 1987-02-20 | 田中貴金属工業株式会社 | Composite blank for decorating and manufacture thereof |
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