JPS5917178B2 - Decorative golden sintered alloy - Google Patents
Decorative golden sintered alloyInfo
- Publication number
- JPS5917178B2 JPS5917178B2 JP16114681A JP16114681A JPS5917178B2 JP S5917178 B2 JPS5917178 B2 JP S5917178B2 JP 16114681 A JP16114681 A JP 16114681A JP 16114681 A JP16114681 A JP 16114681A JP S5917178 B2 JPS5917178 B2 JP S5917178B2
- Authority
- JP
- Japan
- Prior art keywords
- sintered alloy
- weight
- decorative
- alloy
- corrosion resistance
- 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
Links
- 239000000956 alloy Substances 0.000 title claims description 15
- 229910045601 alloy Inorganic materials 0.000 title claims description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims description 6
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229910003468 tantalcarbide Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910001362 Ta alloys Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Description
【発明の詳細な説明】
本発明は炭化ニオブを主体とする常温で非磁性で色調が
金色を呈する時計側用材料を初めとする装飾用金色焼結
合金に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative golden sintered alloy, including a material for a watch side, which is non-magnetic and has a golden color at room temperature, which is mainly composed of niobium carbide.
この種焼結合金としては炭化物系として炭化タンタル主
体の合金と炭化ニオブ主体の合金が知られているが、前
者は耐食性に優れ色調も金色ではあるが材料が高価過ぎ
るという欠点があり、又後者は耐食性が劣ると共に色調
も金色ではない（灰白色である）。As carbide-based sintered alloys of this kind, alloys mainly consisting of tantalum carbide and alloys mainly consisting of niobium carbide are known, but the former has excellent corrosion resistance and a golden color, but the disadvantage is that the material is too expensive, and the latter has poor corrosion resistance and is not golden in color (it is grayish white).
又同様に窒化物系として窒化チタンを主とする合金があ
り、これは耐食性、色調、価格共に満足するものではあ
るが結合材との濡れ性が悪く緻密で強度のある合金を得
ることが困難な為にこの種用途では殆んど用いられてい
ない。Similarly, there are alloys based on titanium nitride as nitride-based alloys, which are satisfactory in terms of corrosion resistance, color tone, and price, but have poor wettability with binders, making it difficult to obtain dense and strong alloys. For this reason, it is rarely used for this type of application.
本発明では上述の欠点を解消する合金を提供せんとする
ものであり、その要旨は窒化チタン重量−４０重量係、
ニッケル１０〜３０重量％残部炭化ニオブなる組成の装
飾用金色焼結合金である。The present invention aims to provide an alloy that eliminates the above-mentioned drawbacks, and its gist is that titanium nitride weight - 40 weight ratio,
It is a decorative golden sintered alloy having a composition of 10 to 30% by weight of nickel and the balance being niobium carbide.
ここで窒化チタンの含有量を１０〜４０重量％とじた理
由は、１０重重量未満では色調が灰白色となり、しかも
耐食性が劣る為であり、４０重重量を超えると焼結性が
低下し緻密性と強度が低下する為である。The reason why the content of titanium nitride is limited to 10 to 40% by weight is that if it is less than 10% by weight, the color tone will be grayish white and the corrosion resistance will be poor.If it exceeds 40% by weight, the sinterability will decrease and the density This is because the strength decreases.
又結合材料としてのニッケルを１０〜３０重量％とじた
のは、１０重量％未満では焼結合金の強度が実用上不足
し、３０重重量を超えると硬さの低下が観られるからで
ある。The reason why nickel as a bonding material is limited to 10 to 30% by weight is because if it is less than 10% by weight, the strength of the sintered alloy is insufficient for practical purposes, and if it exceeds 30% by weight, a decrease in hardness is observed.
以下本発明の実施例並びに比較例を示す。Examples of the present invention and comparative examples will be shown below.
平均粒径１．５μｍの炭化ニオブ、平均粒径１．５μｍ
の窒化チタン、及び平均粒径１．３μｍのニッケルをそ
れぞれ第１表に示す様な割合に配合したものを、湿式ボ
ールミルで１２０時間混合、乾燥後、パラフィンを添加
し、１．５ ｔｏｎ／ｉでプレス成形をし、５．５ｍｍ
ｘ １０ｍｍｘ ３０朋の成形品を得た。Niobium carbide with an average particle size of 1.5 μm, average particle size of 1.5 μm
of titanium nitride and nickel with an average particle size of 1.3 μm in the proportions shown in Table 1 were mixed in a wet ball mill for 120 hours, dried, and then paraffin was added to produce 1.5 ton/i Press molded with 5.5mm
A molded product measuring 10 mm x 30 mm was obtained.
更にこの成形品を真空雰囲気、８００℃で予備焼結を行
ないパラフィンを除去した後、第１表に示す各温度で５
Ｘ１０−２ｍｍＨｇの真空度で６０分間の焼結を行なっ
た。Further, this molded product was pre-sintered at 800°C in a vacuum atmosphere to remove paraffin, and then sintered at each temperature shown in Table 1 for 50 minutes.
Sintering was carried out for 60 minutes at a vacuum level of 10-2 mmHg.
この焼結晶をダイヤモンド砥石で研削した後、硬さ、抗
折力を測定した。After grinding this baked crystal with a diamond grindstone, its hardness and transverse rupture strength were measured.
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。Furthermore, after grinding with a diamond grindstone, lapping was performed, and a corrosion resistance test and color tone observation were performed.
耐食性試験は人工汗中に４８時間浸漬後のラップ面のく
もり度合を調べた。In the corrosion resistance test, the degree of cloudiness of the wrap surface after immersion in artificial sweat for 48 hours was examined.
これらの結果並びに同様にして得た比較試料についての
結果を第１表に示す。Table 1 shows these results as well as the results for comparative samples obtained in the same manner.
なお比較試料で用いたモリブデンの平均粒径は１．３μ
ｍである。The average particle size of molybdenum used in the comparison sample was 1.3μ.
It is m.
上記第１表から判る如く、本願発明合金は、硬度、抗折
力に於いても超硬合金と比べても遜色はなく（例えばＷ
Ｃ−５Ｃｏなる組成の超硬合金の場合で硬度はＨＲＡ９
３〜９４、抗折力は１１０〜１６０位である）、耐食性
に優れ、しかも色調が金色であるので装飾用合金として
優れたものである。As can be seen from Table 1 above, the alloy of the present invention is comparable in hardness and transverse rupture strength to cemented carbide (for example, W
In the case of cemented carbide with the composition C-5Co, the hardness is HRA9.
3 to 94, transverse rupture strength is 110 to 160), has excellent corrosion resistance, and has a golden color, making it an excellent decorative alloy.
しかも本願合金は常温に於いて非磁性であり比重も約８
弱で、例えば炭化タンタルの比重が１４以上であるのに
比べ軽くしかも安価であるので時計側用材料として特に
優れたものである。Moreover, the present alloy is non-magnetic at room temperature and has a specific gravity of approximately 8.
It is particularly excellent as a material for watches because it is lighter and cheaper than, for example, tantalum carbide, which has a specific gravity of 14 or more.
Claims (1)
重量％残部炭化ニオブなる組成の装飾用金色焼結合金。1 Titanium nitride 10-40% by weight, nickel 10-30%
A decorative golden sintered alloy whose composition is niobium carbide with the remainder being niobium carbide in weight percent.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16114681A JPS5917178B2 (en) | 1981-10-09 | 1981-10-09 | Decorative golden sintered alloy |
| US06/337,223 US4422874A (en) | 1981-10-09 | 1982-01-06 | Golden sintered alloy for ornamental purpose |
| CH461/82A CH652146A5 (en) | 1981-10-09 | 1982-01-26 | GOLD SINTER ALLOY FOR ORNAMENTAL USE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16114681A JPS5917178B2 (en) | 1981-10-09 | 1981-10-09 | Decorative golden sintered alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5861250A JPS5861250A (en) | 1983-04-12 |
| JPS5917178B2 true JPS5917178B2 (en) | 1984-04-19 |
Family
ID=15729460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16114681A Expired JPS5917178B2 (en) | 1981-10-09 | 1981-10-09 | Decorative golden sintered alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5917178B2 (en) |
-
1981
- 1981-10-09 JP JP16114681A patent/JPS5917178B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5861250A (en) | 1983-04-12 |
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