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JPS622622B2 - - Google Patents
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JPS622622B2 - - Google Patents

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Publication number
JPS622622B2
JPS622622B2 JP55100519A JP10051980A JPS622622B2 JP S622622 B2 JPS622622 B2 JP S622622B2 JP 55100519 A JP55100519 A JP 55100519A JP 10051980 A JP10051980 A JP 10051980A JP S622622 B2 JPS622622 B2 JP S622622B2
Authority
JP
Japan
Prior art keywords
alloy
sintered
weight
noble metal
wear
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.)
Expired
Application number
JP55100519A
Other languages
Japanese (ja)
Other versions
JPS5726136A (en
Inventor
Akira Shibata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chugai Electric Industrial Co Ltd
Original Assignee
Chugai Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chugai Electric Industrial Co Ltd filed Critical Chugai Electric Industrial Co Ltd
Priority to JP10051980A priority Critical patent/JPS5726136A/en
Priority to CH4685/81A priority patent/CH651321A5/en
Priority to GB8122100A priority patent/GB2081741B/en
Priority to FR8114062A priority patent/FR2487380A1/en
Priority to IT23011/81A priority patent/IT1142021B/en
Priority to BR8104711A priority patent/BR8104711A/en
Priority to DE19813128997 priority patent/DE3128997A1/en
Publication of JPS5726136A publication Critical patent/JPS5726136A/en
Publication of JPS622622B2 publication Critical patent/JPS622622B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C29/00Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C29/00Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/067Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Adornments (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

宝飾品、例えば腕時計のケース或はバンド等に
スクラツチプルーフ性をもたらせるために、
Ti、W、Ta、Zr、Nb、Siの炭化物、或はTi、
Ta、Zr、Hf、Nbの窒化物をコバルト、ニツケル
鉄等の結合材で焼結した材料を用いることが試み
られてきた。 例えば、商品名フエロチツクで知られるTiCを
鉄或はステンレスで焼結した焼結合金はグレー色
を有し、耐摩耗性に秀れているので、これを疑似
白金合金として宝飾品に用いることが試みられ
た。しかし、かゝる鉄―チタン系耐摩耗性焼結合
金はその表面仕上げ中に超硬のTiCを研削或は研
磨しなければならないためにステンレス或は鉄マ
トリツクが焼きつき曇りを生じて、希望するよう
な宝飾価値のある表面が得られないために、実用
化されなかつた。 また、Ti窒化物はブロンズブラウン色を有す
るので、これをジルコニウム、ハフニウム、鉄、
コバルト、ニツケル等を結合材として焼結した焼
結合金が知られる。これは金色を呈するので、疑
似金合金として宝飾品用の材料として供されるも
のである。 この発明は、これらの宝飾品用合金と異つて、
Au、Pt、Pdの一種或は複数を結合材として炭化
チタン、窒化チタン等の耐摩耗性の各種の炭化物
或は窒化物或は硼化物を焼結した焼結合金を提供
するもので、得られた焼結複合合金材料は前記し
た貴金属をベースとするもので疑似金或は疑似白
金合金ではなく、金或は白金の焼結合金であり、
耐摩耗性に優れ、表面仕上げ時にもAu、Pt、Pd
は熱によつて変色しないのでその元来有する宝飾
的色彩価値が損われることがない。また、本発明
にあつては、種々の炭化物、窒化物、硼化物が前
記した貴金属中に焼結、分散されるのであるが、
比重の低い炭化物(例えばTiCの場合4.93)或は
窒化物(例えばTiNの場合5.43)を使用するとき
は特に、これらの超硬材が容量比では全体の大き
な部分を占めることになるので、従来より宝飾品
として用いられてきた既知の貴金属合金に比して
同一重量の貴金属を用いながら大なる容積の宝飾
用貴金属合金が得られることになり、この経済的
な効果も見逃せないところである。 本発明になる液相、固相、或は溶浸焼結による
耐摩耗性貴金属合金の組成は、次に示す通りであ
る。
In order to provide scratch-proof properties to jewelry, such as watch cases or bands,
Carbide of Ti, W, Ta, Zr, Nb, Si, or Ti,
Attempts have been made to use materials in which nitrides of Ta, Zr, Hf, and Nb are sintered with binders such as cobalt and nickel iron. For example, a sintered alloy made by sintering TiC with iron or stainless steel, known under the trade name Ferochik, has a gray color and excellent wear resistance, so it can be used as a pseudo-platinum alloy in jewelry. Attempted. However, such wear-resistant sintered iron-titanium alloys require grinding or polishing of the carbide TiC during surface finishing, which can cause the stainless steel or iron matrix to seize and become cloudy. It was not put into practical use because it was not possible to obtain a surface with such jewelry value. In addition, since Ti nitride has a bronze-brown color, it can be combined with zirconium, hafnium, iron,
Sintered alloys made by sintering cobalt, nickel, or the like as a binder are known. Since it has a golden color, it is used as a pseudo-gold alloy as a material for jewelry. This invention differs from these alloys for jewelry,
This product provides a sintered alloy obtained by sintering various wear-resistant carbides, nitrides, or borides such as titanium carbide and titanium nitride using one or more of Au, Pt, and Pd as a binder. The obtained sintered composite alloy material is based on the above-mentioned precious metal, and is not a pseudo-gold or pseudo-platinum alloy, but a sintered alloy of gold or platinum.
Excellent wear resistance, even when surface finishing Au, Pt, Pd
Since it does not change color due to heat, its original color value as a jewel is not lost. Furthermore, in the present invention, various carbides, nitrides, and borides are sintered and dispersed in the above-mentioned noble metal.
Especially when using carbides with low specific gravity (e.g. 4.93 for TiC) or nitrides (e.g. 5.43 for TiN), these carbides account for a large part of the total volume ratio, so conventional Compared to known precious metal alloys that have been used in jewelry, a larger volume of precious metal alloy for jewelry can be obtained while using the same weight of precious metal, and this economical effect cannot be overlooked. The composition of the wear-resistant precious metal alloy produced by liquid phase, solid phase, or infiltration sintering according to the present invention is as shown below.

【表】 本発明による耐摩耗性合金の結合材をなし且つ
マトリツクス組成分をなす貴金属合金は、Au、
Pt、Pdの一種或は複数を30〜80重量%で含むも
のであるが、これは他の組成分である超硬合金に
よく濡れて結合度の高い焼結合金をつくりうる範
囲であり、かつ所望の硬度を保ちうる範囲であ
る。 また、該超硬合金材料は全重量の15〜70%であ
るが、これは貴金属合金によつて結合されて結合
度の高い焼結合金をつくりうる好適な範囲であ
り、この超硬合金がTiC等の金属炭化物、TiN等
の金属窒化物、TiB2等金属硼化物を80重量%以
上含むことはそれが超硬性を失しわないためであ
る。また本発明における耐摩耗性貴金属合金の組
成分である超硬合金はTiC、TiN及びZrNの一種
或は複数を多量に含むことがより好適である。こ
れは、これらが他の超硬金属炭化物、窒化物、硼
化物に比して比重が低く、得られる耐摩耗性貴金
属合金を全体として軽量化しうるためである。 以下に、本発明の好適なる実施例を列記する。
実施例中の%は全て重量である。 実施例 1―1 TiN(80%)―MoN(20%)の合金粉末(1〜
5μ)を0.5gと、Au(75%)―Cu(25%)合金
粉末(1―5μ)0.5gを混合し、2T/cm2圧力で
成形した。この成形物を1250℃N2分圧下で焼結
した。この焼結品の表面を鏡面仕上げした。表面
は黄金色を有した。 実施例 1―2 TaN(85%)―TiN(15%)の合金粉末0.7g
と、Au(75%)―Ag(25%)合金粉末0.3gと
を、前記実施例1―1と同様に混合、成形、焼結
した。この場合の焼結温度は1100℃であつた。得
られた焼結金合金の表面を鏡面仕上げしたとこ
ろ、黄金色を呈した。 実施例 1―3 TiC(30%)―WC(70%)の合金粉末0.7g
と、Au(80%)―Ni(20%)0.3gとを前記実施
例1―1と同様に混合、成形、焼結、鏡面仕上げ
をした。焼結温度は1250℃で、焼結雰囲気は真空
(10-2)とした。鏡面仕上げした焼結金合金はうす
い黄色を有した。 実施例 1―4 TiC粉末0.45gと、Au(75%)―Ni(25%)合
金粉末0.55gとを前記実施例1―1と同様に混
合、成形、焼結、鏡面仕上げをした。焼結温度は
1200〜1300℃で、雰囲気は真空(10-2)とした。
鏡面仕上げした焼結金合金は白色に近い色を有し
た。 実施例 1―5 TiC(35%)―WC(65%)合金粉末0.6gと、
Au(70%)―Ag(25%)―Pt(5%)の合金粉
末0.4gとを、前記実施例1―1と同様に混合、
成形、焼結、鏡面仕上げした。焼結温度と雰囲気
は、それぞれ約1300℃、真空(10-2)であつた。
得られた金合金の面は白色を有した。 実施例 1―6 前記実施例1―5と全く同様にして焼結金合金
を得た。但し、貴金属材料として、Au(70%)
―Ag(25%)―Pd(5%)合金粉末0.4gを用い
た。この貴金属合金の鏡面仕上げ面も白色であつ
た。 実施例 1―7 TiN80%)―MoN(18%)―Mo2B(2%)の
合金粉末を0.5gと、Au(75%)―Cu(25%)の
合金粉末0.5gとを前記実施例1―1と同様に混
合、成形、焼結した。得られた焼結合金の表面を
鏡面仕上げしたところ、黄金色を呈した。 以上の実施例1―1乃至1―7で得られた耐摩
耗性貴金属焼結合金の硬度は、それぞれの貴金属
材料合金の硬度よりもはるかに高くて、モース硬
度6〜10(実施例1―1では7、実施例1―2で
は8、実施例1―3では7、実施例1―4では
10、実施例1―5では6、実施例1―6では7、
実施例1―7では7)で、人工汗浸漬試験(7日
間―常温、密閉)にさらしても発錆がみられなか
つた。 実施例 2 TiN(55%)―ZrN(30%)―MoC(15%)合
金粉末0.6gにパラフイン3%を混合し、圧力2
T/cm2で10mm×10mmに成形し、真空下で400〜500
℃で脱パラフインした。その後、この上にAu
(80%)―Ag(20%)合金粉末0.4gをのせ、減
圧したN2雰囲気下で溶浸、焼結した。得られた
本発明になる耐摩耗性焼結金合金は、その表面を
鏡面仕上げして、黄金色を有した。該金合金は、
その組成分であるAu―Ag合金よりも高い表面硬
度、モース硬度で8を有し、且つ人工汗半浸漬試
験(7日間―常温、密閉)でも発錆をみなかつ
た。 実施例 3 18―8ステンレス鋼板上に、ZrB2(97%)粉
末―パラフイン(3%)の混合物0.45gを2T/
cm2の圧力で重合するように成形し、更にその上部
にAu(75%)―Pd(10%)―Cu(15%)合金粉
末0.55gをのせ、これをアルゴンの減圧雰囲気中
で1050℃で焼結した。ステンレスの表面にAu―
Pd―Cu―ZrB2合金が複合された。該合金は、Au
―Pd―Cu貴金属合金材料よりもモース硬度で7
の高い硬度を有し、且つ人工汗半浸漬試験(7日
間―常温、密閉)で発錆をみなかつた。
[Table] The noble metal alloys forming the binder and matrix composition of the wear-resistant alloy according to the present invention are Au,
It contains one or more of Pt and Pd in an amount of 30 to 80% by weight, which is within the range that can wet the other components of cemented carbide well and create a sintered alloy with a high degree of bonding, and the desired amount. This is the range in which the hardness can be maintained. In addition, the cemented carbide material accounts for 15 to 70% of the total weight, which is a suitable range that can be bonded by the noble metal alloy to create a highly bonded sintered alloy. The reason for containing 80% by weight or more of metal carbides such as TiC, metal nitrides such as TiN, and metal borides such as TiB 2 is to ensure that they do not lose their superhardness. Further, it is more preferable that the cemented carbide that is the composition of the wear-resistant noble metal alloy in the present invention contains a large amount of one or more of TiC, TiN, and ZrN. This is because these have a lower specific gravity than other cemented carbides, nitrides, and borides, and can reduce the weight of the resulting wear-resistant noble metal alloy as a whole. Preferred embodiments of the present invention are listed below.
All percentages in the examples are by weight. Example 1-1 TiN (80%)-MoN (20%) alloy powder (1~
5μ) and 0.5g of Au (75%)-Cu(25%) alloy powder (1-5μ) were mixed and molded at a pressure of 2T/cm 2 . This molding was sintered at 1250°C under 2 partial pressures of N. The surface of this sintered product was mirror finished. The surface had a golden color. Example 1-2 TaN (85%) - TiN (15%) alloy powder 0.7g
and 0.3 g of Au (75%)-Ag (25%) alloy powder were mixed, molded, and sintered in the same manner as in Example 1-1. The sintering temperature in this case was 1100°C. When the surface of the obtained sintered gold alloy was mirror-finished, it took on a golden color. Example 1-3 TiC (30%) - WC (70%) alloy powder 0.7g
and 0.3 g of Au (80%)-Ni (20%) were mixed, molded, sintered, and mirror-finished in the same manner as in Example 1-1. The sintering temperature was 1250°C, and the sintering atmosphere was vacuum (10 -2 ). The mirror-finished sintered gold alloy had a pale yellow color. Example 1-4 0.45 g of TiC powder and 0.55 g of Au (75%)-Ni (25%) alloy powder were mixed, molded, sintered, and mirror-finished in the same manner as in Example 1-1. The sintering temperature is
The temperature was 1200 to 1300°C and the atmosphere was vacuum (10 -2 ).
The mirror-finished sintered gold alloy had a color close to white. Example 1-5 0.6g of TiC (35%)-WC (65%) alloy powder,
Mix 0.4 g of Au (70%)-Ag (25%)-Pt (5%) alloy powder in the same manner as in Example 1-1,
Molded, sintered and mirror finished. The sintering temperature and atmosphere were approximately 1300°C and vacuum (10 -2 ), respectively.
The surface of the obtained gold alloy had a white color. Example 1-6 A sintered gold alloy was obtained in exactly the same manner as in Example 1-5. However, as a precious metal material, Au (70%)
-Ag (25%) -Pd (5%) alloy powder 0.4g was used. The mirror-finished surface of this precious metal alloy was also white. Example 1-7 0.5 g of alloy powder of TiN (80%) - MoN (18%) - Mo 2 B (2%) and 0.5 g of alloy powder of Au (75%) - Cu (25%) were used in the above implementation. Mixing, molding, and sintering were carried out in the same manner as in Example 1-1. When the surface of the obtained sintered alloy was mirror-finished, it took on a golden color. The hardness of the wear-resistant noble metal sintered alloys obtained in Examples 1-1 to 1-7 above is much higher than the hardness of the respective noble metal material alloys, with a Mohs hardness of 6 to 10 (Example 1-1). 7 in Example 1, 8 in Example 1-2, 7 in Example 1-3, and 7 in Example 1-4.
10, 6 in Example 1-5, 7 in Example 1-6,
In Examples 1-7 (7), no rust was observed even when exposed to the artificial sweat immersion test (7 days - room temperature, sealed). Example 2 0.6 g of TiN (55%) - ZrN (30%) - MoC (15%) alloy powder was mixed with 3% paraffin, and the mixture was heated at a pressure of 2
Formed into 10mm x 10mm with T/cm 2 , 400~500 under vacuum
Deparaffinization was performed at °C. Then add Au on top of this
(80%) - 0.4 g of Ag (20%) alloy powder was placed on top, and infiltrated and sintered in a reduced pressure N 2 atmosphere. The obtained wear-resistant sintered gold alloy according to the present invention had a mirror-finished surface and had a golden color. The gold alloy is
It has a surface hardness higher than that of the Au-Ag alloy, which is its composition, at 8 on the Mohs hardness scale, and did not rust even in an artificial sweat semi-immersion test (7 days at room temperature, sealed). Example 3 0.45 g of ZrB 2 (97%) powder-paraffin (3%) mixture was added at 2T/2 on an 18-8 stainless steel plate.
It was molded to polymerize at a pressure of cm 2 , and then 0.55 g of Au (75%) - Pd (10%) - Cu (15%) alloy powder was placed on top of it, and this was heated at 1050°C in a reduced pressure atmosphere of argon. Sintered with Au on the stainless steel surface
Pd-Cu-ZrB 2 alloy was composited. The alloy is Au
-Mohs hardness of 7 than Pd-Cu noble metal alloy material
It has high hardness, and showed no rust in the artificial sweat semi-immersion test (7 days - room temperature, sealed).

Claims (1)

【特許請求の範囲】 1 Ti、Ta、Zr、Wの窒化物、硼化物或は炭化
物の一種或は複数からなる硬質金属材料を全重量
%で15〜70%と、Au、Pd、Ptの一種或は複数を
30〜80重量%含み残部がCu、Ag或はNiであるそ
れらの合金からなる貴金属材料とを焼結してなる
耐摩耗性貴金属焼結合金。 2 Ti、Ta、Zr、Wの窒化物、硼化物或は炭化
物の一種或は複数と20重量%以下のMoの窒化
物、硼化物或は炭化物の一種或は複数とからなる
硬質金属材料を全重量%で15〜70%と、Au、
Pd、Ptの一種或は複数を30〜80重量%含み残部
がCu、Ag或はNiであるそれらの合金からなる貴
金属材料とを焼結してなる耐摩耗性貴金属焼結合
金。
[Claims] 1 Hard metal material consisting of one or more of nitrides, borides, or carbides of Ti, Ta, Zr, and W in a total amount of 15 to 70% by weight, and of Au, Pd, and Pt. one or more
A wear-resistant noble metal sintered alloy made by sintering a noble metal material containing 30 to 80% by weight and the balance being Cu, Ag or Ni. 2. A hard metal material consisting of one or more nitrides, borides, or carbides of Ti, Ta, Zr, or W and one or more nitrides, borides, or carbides of Mo at 20% by weight or less. Au, with a total weight% of 15-70%
A wear-resistant noble metal sintered alloy formed by sintering a noble metal material consisting of an alloy of Pd, Pt, or Pt, containing 30 to 80% by weight and the balance being Cu, Ag, or Ni.
JP10051980A 1980-07-24 1980-07-24 Sintered noble metallic alloy with wear resistance Granted JPS5726136A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP10051980A JPS5726136A (en) 1980-07-24 1980-07-24 Sintered noble metallic alloy with wear resistance
CH4685/81A CH651321A5 (en) 1980-07-24 1981-07-16 SINDERED WEAR OR Abrasion-resistant precious metal alloy.
GB8122100A GB2081741B (en) 1980-07-24 1981-07-17 Sintered anti-abrasive alloy of precious metal
FR8114062A FR2487380A1 (en) 1980-07-24 1981-07-20 PRECIOUS METAL ALLOYS WITH ANTI-ABRASIVE SANDS
IT23011/81A IT1142021B (en) 1980-07-24 1981-07-20 SINTERED ANTI-ABRASION ALLOY OF PRECIOUS METAL
BR8104711A BR8104711A (en) 1980-07-24 1981-07-22 SINTERIZED ANTI-ABRASIVE METALLIC ALLOY
DE19813128997 DE3128997A1 (en) 1980-07-24 1981-07-22 ABRASION RESISTANT, PREPARED, PRECIOUS METAL ALLOY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10051980A JPS5726136A (en) 1980-07-24 1980-07-24 Sintered noble metallic alloy with wear resistance

Publications (2)

Publication Number Publication Date
JPS5726136A JPS5726136A (en) 1982-02-12
JPS622622B2 true JPS622622B2 (en) 1987-01-21

Family

ID=14276195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10051980A Granted JPS5726136A (en) 1980-07-24 1980-07-24 Sintered noble metallic alloy with wear resistance

Country Status (7)

Country Link
JP (1) JPS5726136A (en)
BR (1) BR8104711A (en)
CH (1) CH651321A5 (en)
DE (1) DE3128997A1 (en)
FR (1) FR2487380A1 (en)
GB (1) GB2081741B (en)
IT (1) IT1142021B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950152A (en) * 1982-09-13 1984-03-23 Seiko Epson Corp Exterior parts for watches
CH653204GA3 (en) * 1983-03-15 1985-12-31
DE102018105489A1 (en) 2018-03-09 2019-09-12 Hnp Mikrosysteme Gmbh Composite materials based on tungsten carbide with precious metal binders and use and process for their preparation
DE102020116805A1 (en) 2020-06-25 2021-12-30 Heraeus Deutschland GmbH & Co. KG Sintering process for electrical feedthroughs
EP3943630A1 (en) * 2020-07-22 2022-01-26 The Swatch Group Research and Development Ltd Cermet component for watchmaking or jewellery
EP3968098A1 (en) * 2020-09-09 2022-03-16 The Swatch Group Research and Development Ltd Decorative item made of cermet

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GB516275A (en) * 1937-12-16 1939-12-28 Mallory Metallurg Prod Ltd Improvements in and relating to metal compositions
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GB1309634A (en) * 1969-03-10 1973-03-14 Production Tool Alloy Co Ltd Cutting tools
JPS5130003B1 (en) * 1971-04-20 1976-08-28

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CH651321A5 (en) 1985-09-13
JPS5726136A (en) 1982-02-12
GB2081741B (en) 1984-10-31
IT8123011A0 (en) 1981-07-20
IT1142021B (en) 1986-10-08
DE3128997A1 (en) 1982-05-13
BR8104711A (en) 1982-04-06
FR2487380A1 (en) 1982-01-29
GB2081741A (en) 1982-02-24

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