JPH05154671A - Manufacture of noble metal laminated material - Google Patents
Manufacture of noble metal laminated materialInfo
- Publication number
- JPH05154671A JPH05154671A JP34922891A JP34922891A JPH05154671A JP H05154671 A JPH05154671 A JP H05154671A JP 34922891 A JP34922891 A JP 34922891A JP 34922891 A JP34922891 A JP 34922891A JP H05154671 A JPH05154671 A JP H05154671A
- Authority
- JP
- Japan
- Prior art keywords
- noble metal
- manufacture
- metal composite
- laminated material
- metal laminated
- 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
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、装飾材料、特に時計材
料として用いられるＫ18／Ｎｉ／Ｋ14の三層張りの貴金
属複合材の製造方法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for producing a K18 / Ni / K14 triple-layered precious metal composite material used as a decorative material, particularly a watch material.
【０００２】[0002]
【従来の技術】従来、Ｋ18／Ｎｉ／Ｋ14の三層張りの貴
金属複合材を製造するには、各材料を焼鈍した後、Ｎｉ
の接合面側にＣｕメッキを施し、然る後Ｋ18、Ｎｉ、Ｋ
14の順に重ねて熱間圧接している。2. Description of the Related Art Conventionally, in order to produce a K18 / Ni / K14 three-layer noble metal composite material, after annealing each material, Ni
The joint surface side of is plated with Cu, and then K18, Ni, K
They are stacked in the order of 14 and hot pressed.
【０００３】ところで、この貴金属複合材の製造方法に
よると、Ｋ18とＮｉの接合は良く、剥れ、ふくれ等は発
生しないが、ＮｉとＫ14の接合はＫ14におけるＺｎの含
有量が11.7％と多い為、熱間圧接時に表面にＺｎが現れ
て肌荒れが生じ、その結果強度が弱くなって、剥れ、ふ
くれが生じて甚だ歩留りが悪いものである。By the way, according to this method for producing a noble metal composite material, the joining of K18 and Ni is good and peeling or swelling does not occur, but the joining of Ni and K14 has a large Zn content of 11.7% in K14. Therefore, Zn appears on the surface at the time of hot press contact to cause rough skin, resulting in weakened strength, peeling and swelling, resulting in poor yield.
【０００４】[0004]
【発明が解決しようとする課題】そこで本発明は、Ｋ14
の表面に肌荒れを生じさせず、ＮｉとＫ14との接合強度
を高め、剥れ、ふくれの発生を抑制して歩留りを向上さ
せることのできる貴金属複合材の製造方法を提供しよう
とするものである。Therefore, the present invention is based on K14.
An object of the present invention is to provide a method for producing a noble metal composite material capable of increasing the bonding strength between Ni and K14, suppressing the occurrence of peeling and swelling, and improving the yield without causing the surface of the steel to become rough. ..
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
の本発明の貴金属複合材の製造方法は、Ｋ18／Ｎｉ／Ｋ
14の三層張りの貴金属複合材を製造するに於いて、各材
料を焼鈍した後、Ｋ14及びＮｉの接合面側にＣｕメッキ
を施し、さらにこれらをＮ2 雰囲気中で焼鈍し、然る後
Ｋ14、Ｎｉ、Ｋ18の順に重ねて熱間圧接することを特徴
とするものである。A method for producing a noble metal composite material of the present invention for solving the above-mentioned problems is K18 / Ni / K.
In the production of the four-layered noble metal composite material of 14, each material is annealed, the joint surface side of K14 and Ni is Cu-plated, and then these are annealed in an N 2 atmosphere. It is characterized in that K14, Ni, and K18 are superposed in this order and subjected to hot pressure welding.
【０００６】[0006]
【作用】上記のように本発明の貴金属複合材の製造方法
では、Ｋ14及びＮｉの接合面側にＣｕメッキを施し、こ
れらをＮ2 雰囲気中で焼鈍するので、メッキ時の水素が
除去されるので、Ｋ14、Ｎｉ、Ｋ18の順に重ねて熱間圧
接する際の温度を下げることができ、その結果Ｋ14の表
面の肌荒れが防止されて、Ｎｉとの接合強度が高められ
て、剥れ、ふくれが抑制されて歩留りが向上する。As described above, in the method for producing a noble metal composite material of the present invention, the joint surface side of K14 and Ni is plated with Cu, and these are annealed in an N 2 atmosphere, so that hydrogen during plating is removed. As a result, the temperature of K14, Ni, and K18 that are stacked in this order and hot pressed can be lowered. As a result, the surface of K14 is prevented from becoming rough, and the joint strength with Ni is increased, causing peeling and blistering. Is suppressed and the yield is improved.
【０００７】[0007]
【実施例】本発明の貴金属複合材の製造方法の一実施例
を説明すると、厚さ２mm、縦200mm、横 120mmのＫ18
と、厚さ0.25mm、縦 200mm、横 120mmのＮｉと、厚さ0.
25mm、縦 200mm、横 120mmのＫ14とを、 700℃、35分、
Ｎ2 ＋Ｈ2 雰囲気中で焼鈍し、ＮｉとＫ14の接合面側に
Ｃｕメッキを10μｍ施し、さらにこのＮｉとＫ14をＮ2
雰囲気中で 400℃、35分焼鈍してＣｕメッキ時の水素を
除去し、然る後Ｋ14、Ｎｉ、Ｋ18の順に重ねて電気炉に
て 750℃、65分加熱し、ホットプレスにて圧接した。そ
の後圧延、焼鈍し、最後に仕上げ圧延して、Ｋ18が 400
μｍ、Ｎｉ50μｍ、Ｋ14が50μｍ、総厚 0.5mm、縦1000
mm、横 120mmのＫ14／Ｎｉ／Ｋ18の貴金属複合材を得
た。EXAMPLE An example of the method for producing a noble metal composite material of the present invention will be described. K18 having a thickness of 2 mm, a length of 200 mm and a width of 120 mm.
And thickness 0.25mm, height 200mm, width 120mm Ni and thickness 0.
K14 of 25mm, length 200mm, width 120mm, 700 ℃, 35 minutes,
Annealing in N 2 + H 2 atmosphere, Cu plating is applied to the joint surface side of Ni and K 14 to 10 μm, and Ni and K 14 are N 2
Anneal at 400 ° C for 35 minutes to remove hydrogen during Cu plating, and then stack K14, Ni, and K18 in that order, heat at 750 ° C for 65 minutes in an electric furnace, and press-bond with a hot press. .. After that, it is rolled, annealed, and finally finish rolled, and K18 is 400.
μm, Ni50μm, K14 50μm, total thickness 0.5mm, length 1000
A noble metal composite material of K14 / Ni / K18 having a width of 120 mm and a width of 120 mm was obtained.
【０００８】一方、従来例として、前記実施例の同一寸
法のＫ18、Ｎｉ、Ｋ14とを 700℃、35分、Ｎ2 ＋Ｈ2 雰
囲気中で焼鈍し、Ｎｉの接合面側にＣｕメッキを10μｍ
施し、然る後Ｋ14、Ｎｉ、Ｋ18の順に重ねて電気炉にて
790℃、65分加熱し、ホットプレスにて圧接した。その
後圧延、焼鈍し、最後に仕上圧延して、Ｋ18が 400μ
ｍ、Ｎｉ50μｍ、Ｋ14が50μｍ、総厚 0.5mm、縦1000m
m、横 120mmのＫ14／Ｎｉ／Ｋ18の貴金属複合材を得
た。On the other hand, as a conventional example, K18, Ni, and K14 having the same dimensions as those in the above-described embodiment were annealed at 700 ° C. for 35 minutes in an N 2 + H 2 atmosphere, and the Ni-bonded surface side was Cu-plated to 10 μm.
After that, stack K14, Ni, K18 in that order in an electric furnace
It was heated at 790 ° C. for 65 minutes, and pressed with a hot press. After that, it is rolled, annealed, and finally finish-rolled, and K18 is 400μ.
m, Ni 50 μm, K14 50 μm, total thickness 0.5 mm, length 1000 m
A noble metal composite material of K14 / Ni / K18 having a width of 120 mm and a width of 120 mm was obtained.
【０００９】こうして得た実施例及び従来例の貴金属複
合材について品質検査した処、Ｋ14の表面の肌荒れによ
る剥れ、ふくれが生じた不良品が従来例の貴金属複合材
では60％もあり、歩留り40％であったのに対し、実施例
の貴金属複合材では上記不良品が20％で、歩留り80％で
あり、品質が著しく向上していた。When the quality inspection was carried out on the noble metal composite materials of the example and the conventional example obtained in this way, there was a defect of 60% in the conventional noble metal composite material in which peeling and blistering were caused by the rough surface of K14, and the yield was high. In contrast to 40%, the noble metal composite material of the example had 20% of the defective products and 80% of the yield, and the quality was remarkably improved.
【００１０】[0010]
【発明の効果】以上の説明で判るように本発明の貴金属
複合材の製造方法によれば、Ｋ18／Ｎｉ／Ｋ14の三層張
りの貴金属複合材を製造するに於いて、Ｋ14の表面に肌
荒れを生じさせずにＮｉとＫ14の接合強度を高め、剥
れ、ふくれの発生を抑制して歩留りを向上させることが
できる。As described above, according to the method for producing a noble metal composite material of the present invention, in producing a noble metal composite material with three layers of K18 / Ni / K14, the surface of K14 is roughened. It is possible to increase the bonding strength between Ni and K14 without generating the cracks, suppress the occurrence of peeling and blistering, and improve the yield.
Claims (1)
合材を製造するに於いて、各材料を焼鈍した後、Ｋ14及
びＮｉの接合面側にＣｕメッキを施し、さらにこれらを
Ｎ2 雰囲気中で焼鈍し、然る後Ｋ14、Ｎｉ、Ｋ18の順に
重ねて熱間圧接することを特徴とする貴金属複合材の製
造方法。1. In the production of a K18 / Ni / K14 three-layer noble metal composite material, after annealing each material, the joint surface side of K14 and Ni is plated with Cu, and then these are N 2 A method for producing a noble metal composite material, which comprises annealing in an atmosphere, and then stacking K14, Ni, and K18 in this order and performing hot pressure welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34922891A JPH05154671A (en) | 1991-12-06 | 1991-12-06 | Manufacture of noble metal laminated material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34922891A JPH05154671A (en) | 1991-12-06 | 1991-12-06 | Manufacture of noble metal laminated material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05154671A true JPH05154671A (en) | 1993-06-22 |
Family
ID=18402350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34922891A Pending JPH05154671A (en) | 1991-12-06 | 1991-12-06 | Manufacture of noble metal laminated material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05154671A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4828871A (en) * | 1986-02-13 | 1989-05-09 | Minnesota Mining And Manufacturing Company | Method of providing shaped polymeric articles with improved receptivity to organic coatings |
| US4844979A (en) * | 1986-02-13 | 1989-07-04 | Minnesota Mining And Manufacturing Company | Shaped polymeric articles having improved receptivity to organic coatings |
-
1991
- 1991-12-06 JP JP34922891A patent/JPH05154671A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4828871A (en) * | 1986-02-13 | 1989-05-09 | Minnesota Mining And Manufacturing Company | Method of providing shaped polymeric articles with improved receptivity to organic coatings |
| US4844979A (en) * | 1986-02-13 | 1989-07-04 | Minnesota Mining And Manufacturing Company | Shaped polymeric articles having improved receptivity to organic coatings |
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