JPS62235440A - Sinterable material for ornamental member - Google Patents
Sinterable material for ornamental memberInfo
- Publication number
- JPS62235440A JPS62235440A JP7728086A JP7728086A JPS62235440A JP S62235440 A JPS62235440 A JP S62235440A JP 7728086 A JP7728086 A JP 7728086A JP 7728086 A JP7728086 A JP 7728086A JP S62235440 A JPS62235440 A JP S62235440A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- alloy
- hardness
- nbc
- tac
- 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 22
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 229910018104 Ni-P Inorganic materials 0.000 claims abstract 4
- 229910018536 Ni—P Inorganic materials 0.000 claims abstract 4
- 239000010931 gold Substances 0.000 abstract description 13
- 238000005245 sintering Methods 0.000 abstract description 12
- 230000008020 evaporation Effects 0.000 abstract description 6
- 238000001704 evaporation Methods 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 229910019802 NbC Inorganic materials 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229910001020 Au alloy Inorganic materials 0.000 description 6
- 239000003353 gold alloy Substances 0.000 description 6
- 229910001096 P alloy Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- 101100368700 Caenorhabditis elegans tac-1 gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分恰〉
本発明は、時計枠、タイピンあるいはネックレス等の装
飾部材用として用いる黄金色の焼結材料に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application> The present invention relates to a golden-colored sintered material used for decorative members such as watch frames, tie pins, and necklaces.
〈従来の技術及びその問題点〉
従来から装飾部材用として用いられて来た金合金（１４
に、 １８Ｋ）は、その硬さが通常Ｈｖ２００位であり
、硬質の合金でも高々Ｈｖ３００程度である為に耐摩耗
性の点で問題があり、使用中に錫が付き易いという欠点
があった。<Prior art and its problems> Gold alloys (14
18K) usually has a hardness of about 200 Hv, and even hard alloys have a hardness of about 300 Hv at most, so there is a problem in terms of wear resistance, and there is a drawback that tin easily sticks during use.
本発明者等は、先に上述の金合金に代わる焼結材料とし
て特開昭６０−１９４０４４号公報で示される材料を開
発した。この焼結材料は硬さが大で耐摩耗性に侵れ傷が
付き難いが、その製造工程中での焼結温度が高すぎる為
に得られる製品が必ずしも好ましいものとはいえなかっ
た。即ち、焼結温度が高すぎる為に焼結中にＡｕが蒸散
し、入Ｕはこの焼結材料の構成成分中量も比重が大なろ
が故に残存材料の相対密度は大きく低下し高々９８％程
度しか維持出来ず、しかもＡｕが蒸散した跡はピンホー
ルとなる為に、得られる製品をみがき上げた際に色むら
が生じたり小孔が現われたりする事があるのである。The present inventors previously developed a material disclosed in Japanese Patent Application Laid-open No. 194044/1984 as a sintered material to replace the above-mentioned gold alloy. Although this sintered material has high hardness and is resistant to wear and scratches, the sintering temperature during its manufacturing process is too high, so the resulting product is not necessarily desirable. That is, since the sintering temperature is too high, Au evaporates during sintering, and since the contained U has a high specific gravity among the constituent components of this sintered material, the relative density of the remaining material decreases significantly, reaching 98% at most. Moreover, since the traces of Au evaporation become pinholes, uneven color may occur or small holes may appear when the resulting product is polished.
く問題点を解決する為の手段〉
本発明は、従来からの金合金の硬さが低いという欠点を
解消すると共に、焼結温度をあまり高くせずに人ｕの蒸
散を抑えて焼結が出来る材料を提供せんとするものであ
り、その要旨はＴａＣ８〜７６５重量％、ＴｉＣ，ＷＣ
，ＮｂＣの少なくとも１種が１〜３重量％、旧及び又は
Ｃｏが１〜５重量％、Ｃｕ １〜４重量％、Ｎ１−Ｐ合
金０．５〜５重量％、残部が八ｕなる組成の装飾部材用
焼結材料である。Means for Solving the Problems> The present invention solves the drawback of conventional gold alloys having low hardness, and also improves sintering by suppressing evaporation of particles without increasing the sintering temperature too high. The purpose is to provide materials that can be produced, and the gist is TaC 8-765% by weight, TiC, WC
, at least one of NbC is 1 to 3% by weight, old and/or Co is 1 to 5% by weight, Cu is 1 to 4% by weight, N1-P alloy is 0.5 to 5% by weight, and the balance is 8%. This is a sintered material for decorative parts.
ここで用いるＮ１−Ｐ合金は、出来る限り低融点の物が
好ましく、通常共晶点近傍の組成であるＰが８〜１６重
量％の合金を用いるものとする。The N1-P alloy used here preferably has a melting point as low as possible, and an alloy containing 8 to 16% by weight of P, which is usually near the eutectic point, is used.
〈実施例及び作用〉
以下本発明の装飾部材用焼結材料につき、その実施例を
示し乍ら詳述する。<Examples and Effects> The sintered material for decorative members of the present invention will be described in detail below while showing examples thereof.
平均粒径１．１μｍのＴａＣ１同１．１μｍのＴｉＣ１
同１゜０ｐｒｎのＷＣ，同２．０．ｃｚｍのＮｂＣ，同
２．８μｍのＮｉ、同１．４μｍのＣｏ、同１０μｍの
人ｕ１３５０メツシュ以下のＮ１−Ｔ’金合金Ｐが１２
重量％残部Ｎｉ）及び３５０メツシユ以下のＣｕをそれ
ぞれ下記第１表に示す様な割合に配合し、湿式ボールミ
ルで９６時間混合し、次いで乾燥の後パラフィンを添加
し、１．５ｔｏｎ／ｃｆでプレス成形をし５． ｓｘ
ＩＯＸ ３０ （ｍｍ）の成形品を得た。この成形品を
真空中７８０℃で予備焼結を行なった後、下記第１表に
示す各温度で５ Ｘ １０ ｍｍＨｇの真空中で３０分
間焼結を行なった。TaC1 with an average particle size of 1.1 μm; TiC1 with an average particle size of 1.1 μm
WC of 1°0prn, 2.0. NbC of czm, Ni of 2.8μm, Co of 1.4μm, N1-T' gold alloy P of 1350 mesh or less of 10μm is 12
Ni) and 350 mesh or less of Cu were respectively blended in the proportions shown in Table 1 below, mixed in a wet ball mill for 96 hours, then dried, paraffin was added, and pressed at 1.5 ton/cf. Shape 5. sx
A molded article of IOX 30 (mm) was obtained. After preliminary sintering of this molded article at 780° C. in a vacuum, sintering was performed for 30 minutes in a vacuum of 5×10 mmHg at each temperature shown in Table 1 below.
この焼結晶をダイヤモンド砥石で研削した後、硬さを測
定した。又ダイヤモンド砥石で研削後更にラッピングを
行なって耐食性試験、色調の観察を行なった。耐食性試
験は第２表に示す人工汗（ｐｌ［４，０）中に４８時間
浸漬後のラップ面のくもり度合ｔ）を調べた。After grinding this baked crystal with a diamond grindstone, the hardness was measured. Furthermore, after grinding with a diamond grindstone, lapping was performed, and a corrosion resistance test and color tone observation were performed. In the corrosion resistance test, the degree of cloudiness t) of the wrap surface after 48 hours of immersion in artificial sweat (pl[4,0) shown in Table 2 was investigated.
これらの結果を下記第１表に示す。These results are shown in Table 1 below.
なお上記した真空中での焼結に引続き、１２５０℃。In addition, following the sintering in the vacuum described above, the temperature was 1250°C.
５００気圧の条件で旧Ｐ処理を３０分間行なった製品に
つき硬さ及び比重を測定した結果、いずれの試料につい
ても硬さ、比重の双方共数％向上しており、１［ＩＰ処
理を行なう方が望ましい事を確認した。As a result of measuring the hardness and specific gravity of products subjected to the old P treatment for 30 minutes under the condition of 500 atmospheres, both the hardness and specific gravity of all samples were improved by several percentage points, and 1 confirmed that it is desirable.
ここで本発明材料の各成分量の適正値を、上記試験結果
を勘案して考察する。即ち本発明材料はその色調が黄金
色を呈するという事を必須要件としているものであるか
らＡｕの含有量を最小でも２０重量％とするものであり
、−万人Ｕがあまり多すぎても硬さの点で実用上使いも
のにならない（装飾部材として）のでλＵの最大量は１
８にのそれに相当する７５重量％とするものである。こ
の様に八Ｕの含有量を限定した上で、ＴａＣについては
８重量％より少なければ硬さが不足し耐摩耗性の点で問
題があるし、ＴａＣの最大量は下記するＴｉＣ，ＷＣ，
ＮｂＣ。Here, appropriate values for the amounts of each component in the material of the present invention will be discussed in consideration of the above test results. That is, since the material of the present invention is required to have a golden color tone, the Au content should be at least 20% by weight. The maximum amount of λU is 1 because it is practically useless (as a decorative member) due to the
The amount is 75% by weight, which corresponds to that of No. 8. After limiting the content of 8U in this way, if the content of TaC is less than 8% by weight, the hardness will be insufficient and there will be a problem in terms of wear resistance.
NbC.
Ｎ１、Ｃｏ、 Ｃｕ、 Ｎ１−Ｐ合金並びにＡｕのいず
れをも最小とした場合で７６．５１ｉｉ％となるのであ
る。ところでＴｉＣ，ＷＣ，ＮｂＣはそのいずれも黄金
色ではないのであまり多量には入れられないがその硬さ
がいずれもＴａＣよりは大であるので少なくとも１重量
％含ませて焼結材料の硬さを維持するが、これらを３重
量％より多くすれば色調が黄金色を外れるので高々３重
量％とする。Ｎｉ、 Ｃｏは焼結性を高める為に最小１
重量％は必要だが５重量％を越又ろと硬さが低下するの
で５重量％に留める、又Ｃｕは焼結温度を下るので焼結
性を高め、かつＣｕ人Ｕの析出硬化により硬さを高める
ので１重量％以上入れるが、あまり多いとＣｕが浸み出
すので４重量％以下とする。When all of N1, Co, Cu, N1-P alloy, and Au are minimized, it becomes 76.51ii%. By the way, TiC, WC, and NbC are not golden in color, so they cannot be added in large amounts, but their hardness is higher than TaC, so they should be included at least 1% by weight to increase the hardness of the sintered material. However, if the content exceeds 3% by weight, the color tone will deviate from golden yellow, so the content should be at most 3% by weight. Ni and Co should be added at a minimum of 1 to improve sinterability.
Although the weight percentage is necessary, the hardness decreases when exceeding 5 weight percent, so keep it at 5 weight percent.Also, Cu lowers the sintering temperature, improving sinterability, and the precipitation hardening of Cu increases the hardness. It is added in an amount of 1% by weight or more to increase the Cu content, but if it is too large, Cu will leach out, so the amount should be 4% by weight or less.
Ｎ１−ｆ’金合金焼結温度を下げる事が出来る為、Ａｕ
の蒸散を防げるので０．５重量％以上入れるが、５重量
％を越えると硬さが低下するので５重量％に留める。Since the N1-f' gold alloy sintering temperature can be lowered, Au
It is added at least 0.5% by weight to prevent the evaporation of carbon, but if it exceeds 5% by weight, the hardness decreases, so it is limited to 5% by weight.
以上述べて来た如く、本発明材料は、その色調が黄金色
で、１４に相当のＡｕ５８．３重量％のものでその硬さ
がＨｖ４００〜４５０であり、Ａｕｆｉが少なく ２０
重量％のものではＩＩｖ１０００位あり耐摩耗性に優れ
ている。As described above, the material of the present invention has a golden color tone, is made of 58.3% by weight of Au corresponding to 14, has a hardness of Hv 400 to 450, and has a low Aufi.
The weight percentage is about IIv1000, which means it has excellent abrasion resistance.
又本発明の材料は、その焼結温度が１３００℃以下の比
較的低温で十分な焼結がなされる為に、Ａｕの蒸散によ
る製品への悪影響がなく高密度で仕上がりの美しい製品
となる。Furthermore, since the material of the present invention is sufficiently sintered at a relatively low sintering temperature of 1300° C. or less, the product is not adversely affected by Au evaporation, resulting in a product with high density and a beautiful finish.
更に従来の金合金は溶解法によって製造していたのに対
し、本発明材料は粉末冶金法によるので従来法では製造
し得なかった組成の材料が得られ、かつその大きさく特
に薄型化）も自在に調整出来ると共に、耐食性にも優れ
ているので、時計枠、ライター、タイピン、カフスボタ
ン、ネックレス等の各種装飾部材用材料として最適であ
る。Furthermore, while conventional gold alloys were produced by a melting method, the material of the present invention is produced by a powder metallurgy method, making it possible to obtain a material with a composition that could not be produced by conventional methods, and also to reduce its size (particularly its thickness). Since it can be adjusted freely and has excellent corrosion resistance, it is ideal as a material for various decorative parts such as watch frames, lighters, tie pins, cufflinks, necklaces, etc.
特許出願人 セイコーエプソン株式会社（他１名）代
理 人 万古 教哨Patent applicant: Seiko Epson Corporation (and one other person)
Rito Manko Senshu
Claims (1)
の少なくとも１種が１〜３重量％、Ｎｉ及び又はＣｏが
１〜５重量％、Ｃｕ１〜４重量％、Ｎｉ−Ｐ合金０．５
〜５重量％、残部がＡｕなる組成の装飾部材用焼結材料
。1. TaC 8-76.5% by weight, TiC, WC, NbC
1 to 3% by weight of at least one of the following, 1 to 5% by weight of Ni and/or Co, 1 to 4% by weight of Cu, and 0.5% of Ni-P alloy.
A sintered material for decorative members having a composition of ~5% by weight and the balance being Au.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7728086A JPS62235440A (en) | 1986-04-02 | 1986-04-02 | Sinterable material for ornamental member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7728086A JPS62235440A (en) | 1986-04-02 | 1986-04-02 | Sinterable material for ornamental member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62235440A true JPS62235440A (en) | 1987-10-15 |
Family
ID=13629452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7728086A Pending JPS62235440A (en) | 1986-04-02 | 1986-04-02 | Sinterable material for ornamental member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62235440A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6863995B2 (en) * | 2003-05-16 | 2005-03-08 | Praxair S.T. Technology, Inc. | Method for brazing components using a Ni-Au-P ternary brazing alloy, the assembly so produced and the ternary alloy |
| EP3943630A1 (en) * | 2020-07-22 | 2022-01-26 | The Swatch Group Research and Development Ltd | Cermet component for watchmaking or jewellery |
-
1986
- 1986-04-02 JP JP7728086A patent/JPS62235440A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6863995B2 (en) * | 2003-05-16 | 2005-03-08 | Praxair S.T. Technology, Inc. | Method for brazing components using a Ni-Au-P ternary brazing alloy, the assembly so produced and the ternary alloy |
| EP3943630A1 (en) * | 2020-07-22 | 2022-01-26 | The Swatch Group Research and Development Ltd | Cermet component for watchmaking or jewellery |
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