JPH058266B2 - - Google Patents
Info
- Publication number
- JPH058266B2 JPH058266B2 JP23608889A JP23608889A JPH058266B2 JP H058266 B2 JPH058266 B2 JP H058266B2 JP 23608889 A JP23608889 A JP 23608889A JP 23608889 A JP23608889 A JP 23608889A JP H058266 B2 JPH058266 B2 JP H058266B2
- Authority
- JP
- Japan
- Prior art keywords
- total amount
- alloy
- pure
- gold
- weight
- 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 - Lifetime
Links
- 229910001020 Au alloy Inorganic materials 0.000 claims description 53
- 239000010931 gold Substances 0.000 claims description 47
- 239000010410 layer Substances 0.000 claims description 47
- 238000002844 melting Methods 0.000 claims description 40
- 230000008018 melting Effects 0.000 claims description 40
- 229910052737 gold Inorganic materials 0.000 claims description 38
- 239000010949 copper Substances 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 31
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 27
- 239000010936 titanium Substances 0.000 claims description 27
- 238000004040 coloring Methods 0.000 claims description 26
- 229910045601 alloy Inorganic materials 0.000 claims description 25
- 239000000956 alloy Substances 0.000 claims description 25
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 23
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 23
- 239000003353 gold alloy Substances 0.000 claims description 18
- 239000002344 surface layer Substances 0.000 claims description 13
- 229910052763 palladium Inorganic materials 0.000 claims description 12
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 9
- 229910052703 rhodium Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 7
- 229910052741 iridium Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052762 osmium Inorganic materials 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 229910052707 ruthenium Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims 5
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 43
- 238000005266 casting Methods 0.000 description 31
- 239000007789 gas Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000002791 soaking Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000010970 precious metal Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000009750 centrifugal casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910017944 Ag—Cu Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910002482 Cu–Ni Inorganic materials 0.000 description 1
- 229910018879 Pt—Pd Inorganic materials 0.000 description 1
- 241000665112 Zonitoides nitidus Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GMMAPXRGRVJYJY-UHFFFAOYSA-J tetrasodium 4-acetamido-5-hydroxy-6-[[7-sulfonato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1-yl]diazenyl]naphthalene-1,7-disulfonate Chemical compound [Na+].[Na+].[Na+].[Na+].OC1=C2C(NC(=O)C)=CC=C(S([O-])(=O)=O)C2=CC(S([O-])(=O)=O)=C1N=NC(C1=CC(=CC=C11)S([O-])(=O)=O)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 GMMAPXRGRVJYJY-UHFFFAOYSA-J 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Adornments (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、貴金属装飾品製造に関連する光輝あ
る黒色に着色する金合金とその着色法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a gold alloy that is colored bright black and a method for coloring the same, which is related to the manufacture of precious metal ornaments.
〈従来の技術〉
貴金属装飾品分野においては、金製品はカラツ
ト法により定められ、我が国では金含有量が75重
量％の18カラツト金の加工品が流通している商品
の90％以上を占めている。これは、18カラツト金
が機械的、物理的、化学的性質が最も安定して加
工性がよく、さらに色相の変化等への応用がしや
すいため定着したものと認められる。そして、18
カラツト金の色相は黄金色という概念が長く固定
化していたが、近年になつて消費者の金合金によ
る貴金属装飾品のニーズが多様化し、多色化して
デザインを生かしす工夫がされるようになつてき
た。<Prior art> In the field of precious metal accessories, gold products are defined by the Karat Law, and in Japan, processed products made of 18-karat gold with a gold content of 75% by weight account for more than 90% of the products in circulation. There is. It is believed that 18 karat gold has become popular because it has the most stable mechanical, physical, and chemical properties, is easy to process, and can be easily applied to changes in hue. And 18
The concept that the hue of karat gold was golden has long been fixed, but in recent years, consumers' needs for precious metal ornaments made of gold alloys have diversified, and efforts have been made to make them more colorful and make the most of their designs. I'm getting old.
現在、金合金の製品に用いられている色相は、
Au−Ag合金の淡緑黄色、Au−Ag−Cu合金の黄
色、Au−Au合金の赤色、Au−Cu−Ni合金の淡
黄白色があり、これらの色を組み合せることによ
つてカラフルな加工品としていた。なお、極く最
近になつて、Au−Al合金の紫、Au−Cd合金の
黄緑色が加わつて色彩に変化をもたらせることが
可能となつた。 Currently, the hues used in gold alloy products are:
Au-Ag alloy is pale green-yellow, Au-Ag-Cu alloy is yellow, Au-Au alloy is red, and Au-Cu-Ni alloy is pale yellow-white. By combining these colors, colorful processing is possible. It was considered a good item. Very recently, it has become possible to change the color by adding purple from Au-Al alloy and yellow-green from Au-Cd alloy.
〈発明が解決しようとする課題〉
しかし、上記のように白、黄、赤、紫、黄緑の
五色では、装飾品としての多色デザイン化を図る
上で限界があり、上記以外の有色Au合金、特に
消費量の多い黄金色に対してコントラストが極め
て良い黒色化した金合金の開発が要望されている
のが現状である。<Problem to be solved by the invention> However, as mentioned above, the five colors of white, yellow, red, purple, and yellow-green have limitations in creating multicolor designs for decorative items, and colored Au other than the above There is currently a demand for the development of alloys, especially black gold alloys that have an extremely good contrast with the gold color that is consumed in large quantities.
〈課題を解決するための手段〉
本発明は、上記に鑑み提案されたもので、
(A) 純金（Au）、もしくは金の含有量が38重量％
以上で、銀（Ag）、ニツケル（Ni）、白金族元
素（Pt、Pd、Rh、Ir、Ru、Os）のうち１種以
上を含有する金合金と、
(B) 全量に対して３〜20重量％の銅（Cu）、全量
に対して３〜20重量％の鉄（Fe）、全量に対し
て３〜20重量％のコバルト（Co）、全量に対し
て１〜10重量％のチタン（Ti）のうち１種以
上と、
からなり、金以外の元素の総量が62重量％を越え
ない合金、
前記(A)と、(B)と、
(C) 全量に対して0.5〜５重量％の亜鉛（Zn）と、
からなり、金以外の元素の総量が62重量％を越え
ない合金を、
この合金の融点以下の温度において大気中もし
くは大気の酸素分圧より高いかもしくは低い酸化
雰囲気中で加熱処理を施した後、空冷、水冷もし
くは油冷して合金の加工品の表層部の全体もしく
は一部に黒色酸化層を形成させてなることを特徴
とする光輝ある黒色に着色した金合金とその着色
法に関するものである。<Means for Solving the Problems> The present invention has been proposed in view of the above, and includes: (A) pure gold (Au) or gold containing 38% by weight;
In the above, a gold alloy containing one or more of silver (Ag), nickel (Ni), and platinum group elements (Pt, Pd, Rh, Ir, Ru, Os), and (B) 3 to 30% of the total amount 20% by weight copper (Cu), 3-20% iron (Fe) based on the total amount, cobalt (Co) 3-20% by weight based on the total amount, titanium 1-10% by weight based on the total amount An alloy consisting of one or more of (Ti), and the total amount of elements other than gold does not exceed 62% by weight, the above (A), (B), and (C) 0.5 to 5% by weight based on the total amount % of zinc (Zn), and in which the total amount of elements other than gold does not exceed 62% by weight, is placed in the atmosphere or in an oxidizing atmosphere higher or lower than the atmospheric oxygen partial pressure at a temperature below the melting point of the alloy. Gold colored in a brilliant black, characterized by being heat treated in an alloy and then air-cooled, water-cooled or oil-cooled to form a black oxide layer on the whole or part of the surface layer of the processed alloy product. It concerns alloys and their coloring methods.
上記各合金における(A)の銀（Ag）、ニツケル
（Ni）、及び白金族元素は、金品位及び機械的特
性を調整するための添加元素である。そして、一
般に金合金装飾品の市場には金含有量が最も低い
もので38重量％のものが市販されているのでこれ
を使用しても良い。 Silver (Ag), nickel (Ni), and platinum group elements (A) in each of the above alloys are additive elements for adjusting the gold grade and mechanical properties. In general, gold alloy ornaments with the lowest gold content of 38% by weight are commercially available, so this may be used.
また、(B)の銅（Cu）、鉄（Fe）、コバルト
（Co）、及びチタン（Ti）は、黒色の選択酸化被
膜を形成させるためのものであり、その総量が62
重量％を越えると金品位が低くなるので金（合
金）製品としての価値が少ない。さらに銅
（Cu）、鉄（Fe）、コバルト（Co）が３重量％よ
り少ないと灰色もしくは灰黒色となつて装飾的価
値の高い黒色に発色しない。また20重量％を越え
ると金合金が硬くなり過ぎ鋳造後の後加工が困難
となる。尚、チタン（Ti）は、上記各元素に比
べて低含有量で黒色に発色するので１〜10重量％
で良く、10重量％を越えると非常に硬くなり、脆
くなる。 In addition, copper (Cu), iron (Fe), cobalt (Co), and titanium (Ti) in (B) are used to form a black selective oxide film, and the total amount is 62
If the weight percentage is exceeded, the gold quality will be low and the value as a gold (alloy) product will be low. Furthermore, if the content of copper (Cu), iron (Fe), or cobalt (Co) is less than 3% by weight, the color becomes gray or gray-black, and the black color with high decorative value does not develop. Moreover, if it exceeds 20% by weight, the gold alloy becomes too hard and post-processing after casting becomes difficult. Furthermore, since titanium (Ti) develops a black color at a low content compared to each of the above elements, the content should be 1 to 10% by weight.
If it exceeds 10% by weight, it becomes extremely hard and brittle.
さらに、亜鉛（Zn）は、金合金溶解時の脱酸
剤であり、金合金の黒色化処理時における選択酸
化被膜のガス（主として酸素）による局部的なふ
くれの発生を防止するために添加するものであ
り、0.5重量％より少ないと上記効果が充分でな
いし、５重量％を越えてもそれ以上の効果がな
い。 Furthermore, zinc (Zn) is a deoxidizing agent when melting gold alloys, and is added to prevent local blistering caused by gas (mainly oxygen) in the selective oxide film during blackening treatment of gold alloys. If it is less than 0.5% by weight, the above effects are not sufficient, and if it exceeds 5% by weight, there is no further effect.
上記した各種の元素から構成される金合金は、
上記した各々の組成物を真空または、不活性ガス
雰囲気中において水冷銅ルツボを備えたアーク溶
解炉或いは高周波溶解炉等により溶製することに
より得られる。 Gold alloys composed of the various elements mentioned above are
It is obtained by melting each of the above-mentioned compositions in a vacuum or an inert gas atmosphere using an arc melting furnace or a high frequency melting furnace equipped with a water-cooled copper crucible.
また、通常、一回の溶解量は50〜100gほどで
ある。 Further, the amount of dissolution at one time is usually about 50 to 100 g.
上記のように溶製した各合金のインゴツトを真
空もしくは不活性ガス、例えばアルゴンガス雰囲
気中において溶解し、マグネシア、ジルコン、ア
ルミナ、ムライト、シリカ等で作られた鋳型へ鋳
造する。この場合、鋳造時に不活性ガスによる加
圧もしくは遠心力を利用して鋳型内の空洞（キヤ
ビテイ）への充填性を良好にすることが望まし
い。 The ingots of each alloy produced as described above are melted in vacuum or in an inert gas atmosphere, such as argon gas, and cast into a mold made of magnesia, zircon, alumina, mullite, silica, or the like. In this case, it is desirable to use pressurization with an inert gas or centrifugal force during casting to improve filling of the cavity in the mold.
上記のように鋳造して得られた金合金の製品に
は、ヤスリがけ、キサゲ、砥石研磨、バフ研磨を
施した後、大気中もしくは大気の酸素分圧より高
いかまたは低い酸化雰囲気中で、通常は850〜950
℃で20〜30分ほど加熱した後、空冷、油冷もしく
は水冷する。 The gold alloy product obtained by casting as described above is subjected to sanding, scraping, grindstone polishing, and buffing, and then is heated in the atmosphere or in an oxidizing atmosphere higher or lower than the oxygen partial pressure of the atmosphere. Usually 850-950
After heating at ℃ for about 20 to 30 minutes, cool in air, oil, or water.
上記した金合金の加熱工程は、大気中において
行うものでもよく、また、加熱温度は各合金の融
点以下の温度ならば任意に、加熱時間についても
任意に変えることができる。 The heating process for the gold alloy described above may be carried out in the atmosphere, and the heating temperature can be arbitrarily changed as long as it is below the melting point of each alloy, and the heating time can also be arbitrarily changed.
尚、上記した黒色化処理が終了した時点で、表
面に形成された黒色の光沢が不十分であれば、再
度、軽くバブ研磨を行つた後、都市ガス、プロパ
ンガス等によるガスバーナーの炎を製品の表面に
短時間あてて、バフ研磨によりつや出しすると十
分な光沢を発生することができる。 If the black gloss formed on the surface is insufficient after the above-mentioned blackening treatment is completed, lightly buff the surface again and then turn off the flame of a gas burner using city gas, propane gas, etc. Sufficient gloss can be generated by applying it to the surface of the product for a short time and polishing it by buffing.
ところで、本発明の加熱による黒色の発色処理
は、加工品の大きさにより異なるが、かなり広い
範囲にとることが可能であり、加熱温度は大気雰
囲気下では800〜1000℃くらいで、加熱時間を長
くするほど黒色化層が厚くなるので、より黒色化
度は増すが、指輪、ブローチ等の小物では15〜20
分、少し大物でも30〜40分で十分のようである。 By the way, the black coloring treatment by heating of the present invention varies depending on the size of the processed product, but it can be applied over a fairly wide range, and the heating temperature is about 800 to 1000°C in the air, and the heating time can be varied. The longer it is, the thicker the blackening layer becomes, so the degree of blackening increases, but for small items such as rings and brooches, it is 15 to 20
30 to 40 minutes seems to be enough for slightly larger fish.
〈実施例〉 以下に実施例を示す。<Example> Examples are shown below.
(A) 金（Au）にPt、Pd、Rh、Ir、Ru、Osのう
ち１種もしくは２種以上を添加し、さらにCu、
Fe、Co、Tiのうち１種もしくは２種以上を添
加した合金系の場合。(A) One or more of Pt, Pd, Rh, Ir, Ru, and Os is added to gold (Au), and Cu,
For alloys containing one or more of Fe, Co, and Ti.
実施例 １
Au合金の配合
純Au 75g
純Pd 10g
電解Fe 15g
上記配合のものをアルゴンガス雰囲気中におい
て、アーク溶解により溶製した。本合金を真空下
でロストワツクス法により作製した鋳型を用い、
遠心鋳造を行つて得られた鋳造品（指輪）にヤス
リがけ、研磨として表面を仕上げた後、大気中で
900℃で15分間均熱して発色処理した後、水冷し
た。その後、製品に再度バフ研磨を施したとこ
ろ、美麗で、光輝ある黒色製品が得られた。発色
処理により形成された黒色化層の厚さは、３〜
4μmほどで、黒色化層を形成する組成物はAu、
Pdを含むFe3O4の酸化物であつた。Example 1 Au alloy composition Pure Au 75g Pure Pd 10g Electrolytic Fe 15g The above composition was melted by arc melting in an argon gas atmosphere. Using a mold made of this alloy by the lost wax method under vacuum,
After finishing the surface by filing and polishing the cast product (ring) obtained by centrifugal casting, it is placed in the atmosphere.
After soaking at 900°C for 15 minutes for color development, the mixture was cooled with water. Thereafter, when the product was buffed again, a beautiful, shiny black product was obtained. The thickness of the blackening layer formed by the coloring treatment is 3 to 3.
The composition that forms the blackening layer is Au,
It was an oxide of Fe 3 O 4 containing Pd.
実施例 ２
Au合金の配合
純Au 75g
純Pd 10g
電解Co 15g
実施例１と同一の方法で溶製し、鋳造して得ら
れた鋳造品（指輪）を大気中で850℃で20分間均
熱した後、空冷して、製品の表層部全体を黒色化
させた。黒色層は２〜3μmほどで、黒色化層の組
成物の多くはAu、Pdを含むCoOであつた。Example 2 Composition of Au alloy Pure Au 75g Pure Pd 10g Electrolytic Co 15g The cast product (ring) obtained by melting and casting in the same manner as Example 1 was soaked in the air at 850°C for 20 minutes. After that, the product was air cooled to blacken the entire surface layer of the product. The black layer had a thickness of about 2 to 3 μm, and most of the composition of the black layer was CoO containing Au and Pd.
実施例 ３
Au合金の配合
純Au 75g
純Pd 17g
純Ti 8g
実施例１と同一の方法で溶製し、鋳造して得ら
れた鋳造品（指輪）を大気中で850℃で20分間均
熱した後、空冷して、製品の表層部全体を黒色化
させた。黒色層は２〜3μmほどで、黒色層の組成
物はAu、Pdを含むTiO2の低次酸化物であつた。Example 3 Composition of Au alloy Pure Au 75g Pure Pd 17g Pure Ti 8g The cast product (ring) obtained by melting and casting in the same manner as Example 1 was soaked in the air at 850°C for 20 minutes. After that, the product was air cooled to blacken the entire surface layer of the product. The black layer had a thickness of about 2 to 3 μm, and the composition of the black layer was a low-order oxide of TiO 2 containing Au and Pd.
実施例 ４
Au合金の配合
純Au 84g
純Ru 6g
無酸素Cu 10g
実施例１と同一の方法で溶製し、鋳造して得ら
れた鋳造品（指輪）を大気中で800℃で20分間均
熱した後、空冷して、製品の表層部全体を黒色化
させた。黒色層は３〜4μmほどで、黒色層の組成
物はAu、Ptを含むCuOであつた。Example 4 Au alloy composition Pure Au 84g Pure Ru 6g Oxygen-free Cu 10g The cast product (ring) obtained by melting and casting in the same manner as Example 1 was equalized in the air at 800℃ for 20 minutes. After heating, the product was air cooled to blacken the entire surface layer of the product. The black layer had a thickness of about 3 to 4 μm, and the composition of the black layer was CuO containing Au and Pt.
実施例 ５
Au合金の配合
純Au 75g
純Rh 5g
電解Fe 20g
実施例１と同一の方法で溶製し、鋳造して得ら
れた鋳造品（指輪）を大気中で850℃で20分間均
熱した後、空冷して、製品の表層部全体を黒色化
させた。黒色層は３〜4μmほどで、黒色層の組成
物の多くはAu、Rhを含むFe3O4であつた。Example 5 Composition of Au alloy Pure Au 75g Pure Rh 5g Electrolytic Fe 20g The cast product (ring) obtained by melting and casting in the same manner as Example 1 was soaked in the air at 850°C for 20 minutes. After that, the product was air cooled to blacken the entire surface layer of the product. The black layer had a thickness of about 3 to 4 μm, and most of the composition of the black layer was Fe 3 O 4 containing Au and Rh.
実施例 ６
Au合金の配合
純Au 59g
純Pd 26g
電解Co 5g
電解Fe 10g
実施例１と同一の方法で溶製し、鋳造して得ら
れた鋳造品（指輪）を大気中で900℃で15分間均
熱した後、空冷して、製品の表層部全体を黒色化
させた。黒色層は３〜4μmほどで、黒色層の組成
物はAu、Pdを含むFe3O4の複合酸化物であつた。Example 6 Au alloy composition Pure Au 59g Pure Pd 26g Electrolytic Co 5g Electrolytic Fe 10g A cast product (ring) obtained by melting and casting in the same manner as in Example 1 was heated at 900°C in the air for 15 minutes. After soaking for a minute, the product was air cooled to blacken the entire surface layer of the product. The thickness of the black layer was about 3 to 4 μm, and the composition of the black layer was a composite oxide of Fe 3 O 4 containing Au and Pd.
実施例 ７
Au合金の配合
純Au 75g
純Pt 5g
電解Co 15g
純Ti 5g
実施例１と同一の方法で溶製し、鋳造して得ら
れた鋳造品（指輪）を大気中で900℃で15分間均
熱した後、空冷して、製品の表層部全体を黒色化
させた。黒色層は２〜3μmほどで、黒色層の組成
物はAu、Ptを含むCoCとTiO2の低次酸化物との
複合酸化物であつた。Example 7 Au alloy composition Pure Au 75g Pure Pt 5g Electrolytic Co 15g Pure Ti 5g The cast product (ring) obtained by melting and casting in the same manner as Example 1 was heated at 900℃ in the air for 15 minutes. After soaking for a minute, the product was air cooled to blacken the entire surface layer of the product. The black layer had a thickness of about 2 to 3 μm, and the composition of the black layer was a composite oxide of CoC containing Au and Pt and a lower oxide of TiO 2 .
実施例 ８
Au合金の配合
純Au 42g
純Pd 43g
電解Co 10g
無酸素Cu 5g
実施例１と同一の方法で溶製し、鋳造して得ら
れた鋳造品（指輪）を大気中で800℃で20分間均
熱した後、空冷して、製品の表層部全体を黒色化
させた。黒色層は３〜4μmほどで、黒色層の組成
物はAu、Pdを含むCoOとCuOの複合酸化物であ
つた。Example 8 Au alloy composition Pure Au 42g Pure Pd 43g Electrolytic Co 10g Oxygen-free Cu 5g The cast product (ring) obtained by melting and casting in the same manner as in Example 1 was heated at 800°C in the atmosphere. After soaking for 20 minutes, the product was air cooled to blacken the entire surface layer of the product. The thickness of the black layer was about 3 to 4 μm, and the composition of the black layer was a composite oxide of CoO and CuO containing Au and Pd.
実施例 ９
Au合金の配合
純Au 75g
純Pt 5g
電解Fe 10g
無酸素Cu 10g
実施例１と同一の方法で溶製し、鋳造して得ら
れた鋳造品（指輪）を大気中で850℃で20分間均
熱した後、空冷して、製品の表層部全体を黒色化
させた。黒色層は３〜4μmほどで、黒色層の組成
物はAu、Ptを含むFe3O4とCuOの複合酸化物で
あつた。Example 9 Au alloy composition Pure Au 75g Pure Pt 5g Electrolytic Fe 10g Oxygen-free Cu 10g The cast product (ring) obtained by melting and casting in the same manner as in Example 1 was heated at 850°C in the atmosphere. After soaking for 20 minutes, the product was air cooled to blacken the entire surface layer of the product. The black layer had a thickness of about 3 to 4 μm, and the composition of the black layer was a composite oxide of Fe 3 O 4 and CuO containing Au and Pt.
実施例 10
Au合金の配合
純Au 75g
純Pt 5g
純Pd 10g
電解Co 10g
実施例１と同様の溶製方法によりAu−Pt−Pd
−Co合金を得た。その後、この合金を用いて遠
心鋳造を行つて得られた鋳造品（指輪）に大気中
で900℃で15分の加熱処理を行なつて黒色に発色
させ、水冷した。黒色化層の厚さは３〜4μmほど
で、美麗であつた。Example 10 Au alloy composition Pure Au 75g Pure Pt 5g Pure Pd 10g Electrolytic Co 10g Au-Pt-Pd was made by the same melting method as Example 1.
-Co alloy was obtained. Thereafter, a cast product (ring) obtained by performing centrifugal casting using this alloy was heat-treated at 900°C for 15 minutes in the air to develop a black color, and then cooled with water. The thickness of the blackened layer was about 3 to 4 μm, and it was beautiful.
実施例 11
Au合金の配合
純Au 59g
純Pd 24g
純Rh 2g
電解Co 5g
電解Fe 10g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた。黒色化層の厚さは３〜4μmほど
で、黒色化層は、Au、Pd、Rhを含むAg、Co、
Fe、Tiの複合酸化物であつた。Example 11 Composition of Au alloy Pure Au 59g Pure Pd 24g Pure Rh 2g Electrolytic Co 5g Electrolytic Fe 10g The same coloring treatment as in Example 1 was performed by melting, casting, and heating. The thickness of the blackening layer is about 3 to 4μm, and the blackening layer contains Ag, Co, including Au, Pd, and Rh.
It was a composite oxide of Fe and Ti.
実施例 12
Au合金の配合
純Au 75g
純Pd 10g
無酸素Cu 5g
電解Co 10g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つて、黒色化層は３〜4μmであり、美麗
であつた。Example 12 Au alloy composition Pure Au 75g Pure Pd 10g Oxygen-free Cu 5g Electrolytic Co 10g The same coloring treatment as in Example 1 was performed by melting, casting, and heating, and the blackened layer was 3 to 4 μm thick and beautiful. It was hot.
実施例 13
Au合金の配合
純Au 75g
純Pd 12.5g
純Ir 2g
無酸素Cu 5g
電解Fe 5.5g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 13 Composition of Au alloy Pure Au 75g Pure Pd 12.5g Pure Ir 2g Oxygen-free Cu 5g Electrolytic Fe 5.5g The same coloring treatment as in Example 1 was performed by melting, casting, and heating, and the blackening layer was 3~ It was 4 μm and beautiful.
実施例 14
Au合金の配合
純Au 84g
純Ru 3g
純Pd 8g
無酸素Cu 5g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 14 Composition of Au alloy Pure Au 84g Pure Ru 3g Pure Pd 8g Oxygen-free Cu 5g Coloring treatment was performed by melting, casting, and heating in the same manner as in Example 1. The blackened layer was 3 to 4 μm thick and beautiful. It was hot.
実施例 15
Au合金の配合
純Au 75g
純Pd 10g
無醸素Cu 5g
電解Co 5g
電解Fe 5g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 15 Au alloy composition Pure Au 75g Pure Pd 10g Non-breathing Cu 5g Electrolytic Co 5g Electrolytic Fe 5g The same coloring treatment as in Example 1 was carried out by melting, casting, and heating, and the blackening layer was 3 to 4 μm thick. And it was beautiful.
実施例 16
Au合金の配合
純Au 75g
純Pd 10g
無酸素Cu 5g
電解Co 8g
純Ti 2g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 16 Au alloy composition Pure Au 75g Pure Pd 10g Oxygen-free Cu 5g Electrolytic Co 8g Pure Ti 2g Coloring treatment was performed by melting, casting, and heating in the same manner as in Example 1, and the blackening layer was 3 to 4 μm thick. Yes, it was beautiful and warm.
実施例 17
Au合金の配合
純Au 59g
純Pt 19g
純Pd 15g
無酸素Cu 5g
純Ti 2g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
でであつた。Example 17 Au alloy composition Pure Au 59g Pure Pt 19g Pure Pd 15g Oxygen-free Cu 5g Pure Ti 2g Coloring treatment was performed by melting, casting, and heating in the same manner as in Example 1, and the blackening layer was 3 to 4 μm thick. Yes, it was beautiful.
実施例 18
Au合金の配合
純Au 75g
純Pd 5g
無酸素Cu 5g
電解Co 10g
電解Fe 5g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 18 Au alloy composition Pure Au 75g Pure Pd 5g Oxygen-free Cu 5g Electrolytic Co 10g Electrolytic Fe 5g The same coloring treatment as in Example 1 was carried out by melting, casting, and heating, and the blackening layer was 3 to 4 μm thick. Yes, it was beautiful and warm.
実施例 19
Au合金の配合
純Au 75g
純Pt 1g
無酸素Cu 3g
電解Co 20g
純Ti 1g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 19 Au alloy composition Pure Au 75g Pure Pt 1g Oxygen-free Cu 3g Electrolytic Co 20g Pure Ti 1g The same coloring treatment as in Example 1 was carried out by melting, casting, and heating, and the blackening layer was 3 to 4 μm thick. Yes, it was beautiful and warm.
実施例 20
Au合金の配合
純Au 75g
純Pd 8g
無酸素Cu 2g
電解Co 10g
電解Fe 10g
純Ti 1g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 20 Au alloy composition Pure Au 75g Pure Pd 8g Oxygen-free Cu 2g Electrolytic Co 10g Electrolytic Fe 10g Pure Ti 1g The blackening layer was 3, which was subjected to coloring treatment by melting, casting, and heating as in Example 1. It was ~4 μm and beautiful.
実施例 21
Au合金の配合
純ｕ 84g
純Pd 2g
電解Co 10g
無酸素Cu 3g
純Zn 1g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 21 Au alloy composition Pure U 84g Pure Pd 2g Electrolytic Co 10g Oxygen-free Cu 3g Pure Zn 1g Coloring treatment was performed by melting, casting, and heating in the same manner as in Example 1, and the blackening layer was 3 to 4 μm thick. Yes, it was beautiful and warm.
(B) 金（Au）に、Ag，Niのうち１種もしくは２
種以上を添加して金合金に、Pt，Pd，Rh，Ir，
Ru，Osのうち１種もしくは２種以上を添加
し、さらにCu，Fe，Co，Tiのうち１種もしく
は２種以上を添加した合金系の場合。(B) Gold (Au), one or two of Ag and Ni
Pt, Pd, Rh, Ir,
For alloys containing one or more of Ru and Os, and one or more of Cu, Fe, Co, and Ti.
実施例 22
Au合金の配合
純Au 75g
純Ag 5g
純Pd 5g
電解Co 15g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 22 Au alloy composition Pure Au 75g Pure Ag 5g Pure Pd 5g Electrolytic Co 15g Coloring treatment was performed by melting, casting, and heating in the same manner as in Example 1, and the blackening layer was 3 to 4 μm and beautiful. It was hot.
実施例 23
Au合金の配合
純Au 75g
電解Ni 8g
純Pd 6g
電解Fe 10g
純Ti 1g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 23 Au alloy composition Pure Au 75g Electrolytic Ni 8g Pure Pd 6g Electrolytic Fe 10g Pure Ti 1g The same coloring treatment as in Example 1 was carried out by melting, casting, and heating, and the blackening layer was 3 to 4 μm. , it was beautiful and warm.
実施例 24
Au合金の配合
純Au 59g
純Ag 15g
電解Ni 5g
純Pd 16g
純Ti 5g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 24 Au alloy composition Pure Au 59g Pure Ag 15g Electrolytic Ni 5g Pure Pd 16g Pure Ti 5g The same coloring treatment as in Example 1 was performed by melting, casting, and heating, and the blackening layer was 3 to 4 μm. , it was beautiful and warm.
実施例 25
Au合金の配合
純Au 75g
純Ag 6g
純Pt 1g
純Pd 2g
電解Co 6g
電解Fe 10g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 25 Composition of Au alloy Pure Au 75g Pure Ag 6g Pure Pt 1g Pure Pd 2g Electrolytic Co 6g Electrolytic Fe 10g The blackening layer was 3 to 3, which was subjected to coloring treatment by melting, casting, and heating in the same manner as in Example 1. It was 4 μm and beautiful.
実施例 26
Au合金の配合
純Au 84g
純Ag 3g
純Pt 2g
純Pd 3g
電解Ni 3g
電解Co 5g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 26 Composition of Au alloy Pure Au 84g Pure Ag 3g Pure Pt 2g Pure Pd 3g Electrolytic Ni 3g Electrolytic Co 5g The blackening layer was 3~ It was 4 μm and beautiful.
実施例 27
Au合金の配合
純Au 75g
純Ag 5g
電解Ni 3g
純Pd 6g
電解Fe 5g
電解Co 5g
純Ti 1g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 27 Au alloy composition Pure Au 75g Pure Ag 5g Electrolytic Ni 3g Pure Pd 6g Electrolytic Fe 5g Electrolytic Co 5g Pure Ti 1g Blackened layer subjected to coloring treatment by melting, casting, and heating in the same manner as in Example 1 It was 3 to 4 μm and beautiful.
実施例 28
Au合金の配合
純Au 75g
純Ag 5g
純Pd 5g
電解Co 10g
無酸素Cu 4g
純Zn 1g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は３〜4μmであり、美麗
であつた。Example 28 Au alloy composition Pure Au 75g Pure Ag 5g Pure Pd 5g Electrolytic Co 10g Oxygen-free Cu 4g Pure Zn 1g The blackening layer was 3, which was subjected to coloring treatment by melting, casting, and heating in the same manner as in Example 1. It was ~4 μm and beautiful.
実施例 29
Au合金の配合
純Au 38g
電解Ni 38g
純Pd 13g
電解Fe 10g
純Ti 1g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は８〜10μmであり、美
麗であつた。Example 29 Au alloy composition Pure Au 38g Electrolytic Ni 38g Pure Pd 13g Electrolytic Fe 10g Pure Ti 1g The same coloring treatment as in Example 1 was performed by melting, casting, and heating, and the blackening layer was 8 to 10 μm. , it was beautiful and warm.
実施例 30
Au合金の配合
純Au 38g
純Ag 40g
純Pt 12g
電解Co 7g
無酸素Cu 3g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は８〜10μmであり、美
麗であつた。Example 30 Au alloy composition Pure Au 38g Pure Ag 40g Pure Pt 12g Electrolytic Co 7g Oxygen-free Cu 3g The same coloring treatment as in Example 1 was performed by melting, casting, and heating, and the blackening layer was 8 to 10 μm thick. Yes, it was beautiful and warm.
実施例 31
Au合金の配合
純Au 38g
純Ag 35g
純Pd 15g
電解Co 6g
無酸素Cu 5g
純Zn 1g
実施例１と同様の溶製、鋳造、加熱による発色
処理を行つた、黒色化層は８〜10μmであり、美
麗であつた。Example 31 Au alloy composition Pure Au 38g Pure Ag 35g Pure Pd 15g Electrolytic Co 6g Oxygen-free Cu 5g Pure Zn 1g The blackening layer was 8, which was subjected to coloring treatment by melting, casting, and heating in the same manner as in Example 1. It was ~10 μm and beautiful.
以上、主として18K（カラツト）のAu合金につ
いての実施例を記したが、前記した本発明の構成
に示した範囲において添加元素と添加量の調整を
したAu合金の貴金属製品に対しても、加熱処理
を施すことにより黒色化した製品とすることがで
きる。 Above, we have mainly described examples for 18K (karat) Au alloys, but we can also apply heating to noble metal products of Au alloys in which the added elements and amounts have been adjusted within the ranges shown in the configuration of the present invention. By applying the treatment, it is possible to obtain a blackened product.
〈発明の効果〉
以上説明したように、本発明の金合金は、従
来、赤、黄、黄緑、白、紫の５色であつたAu合
金に、黒色を加えることになり、貴金属装飾品と
してより多彩なデザインが可能になるとともに、
装飾品の高付加価値化につながる。<Effects of the Invention> As explained above, the gold alloy of the present invention adds black to the conventional Au alloy, which has five colors of red, yellow, yellow-green, white, and purple, and is suitable for precious metal ornaments. As well as allowing for more diverse designs,
This leads to higher added value for decorative items.
また、本発明の光輝ある黒色に着色する金合金
の製造法は、特殊な原材料及び処理装置を必要と
しないので、実用性は極めて高い。 Furthermore, the method for producing a gold alloy that is colored bright black according to the present invention does not require special raw materials or processing equipment, and therefore has extremely high practicality.
Claims (1)
量％以上で、銀（Ag）、ニツケル（Ni）、白金
族元素（Pt、Pd、Rh、Ir、Ru、Os）のうち１
種以上を含有する金合金と、 (B) 全量に対して３〜20重量％の銅（Cu）、全量
に対して３〜20重量％の鉄（Fe）、全量に対し
て３〜２重量％のコバルト（Co）、全量に対し
て１〜10重量％のチタン（Ti）のうち１種以
上と、 からなり、金以外の元素の総量が62重量％を越え
ない合金を、 この合金の融点以下の温度において大気中もし
くは大気の酸素分圧より高いかもしくは低い酸化
雰囲気中で加熱処理を施した後、空冷、水冷もし
くは油冷し、合金の加工品の表層部の全体もしく
は一部に黒色酸化層を形成させてなることを特徴
とする光輝ある黒色に着色した金合金。 ２ (A) 純金（Au）、もしくは金の含有量が38重
量％以上で、銀（Ag）、ニツケル（Ni）、白金
族元素（Pt、Pd、Rh、Ir、Ru、Os）のうち１
種以上を含有する金合金と、 (B) 全量に対して３〜20重量％の銅（Cu）、全量
に対して３〜20重量％の鉄（Fe）、全量に対し
て３〜20重量％のコバルト（Co）、全量に対し
て１〜10重量％のチタン（Ti）のうち１種以
上と、 からなり、金以外の元素の総量が62重量％を越え
ない合金を、 この合金の融点以下の温度において大気中もし
くは大気の酸素分圧より高いかもしくは低い酸化
雰囲気中で加熱処理を施した後、空冷、水冷もし
くは油冷して合金の加工品の表層部の全体もしく
は一部に黒色酸化層を形成させるようにしたこと
を特徴とする光輝ある黒色に着色した金合金の着
色法。 ３ (A) 純金（Au）、もしくは金の含有量が38重
量％以上で、銀（Ag）、ニツケル（Ni）、白金
族元素（Pt、Pd、Rh、Ir、Ru、Os）のうち１
種以上を含有する金合金と、 (B) 全量に対して３〜20重量％の銅（Cu）、全量
に対して３〜20重量％の鉄（Fe）、全量に対し
て３〜20重量％のコバルト（Co）、全量に対し
て１〜10重量％のチタン（Ti）のうち１種以
上と、 (C) 全量に対して0.5〜５重量％の亜鉛（Zn）と、 からなり、金以外の元素の総量が62重量％を越え
ない合金を、 この合金の融点以下の温度において大気中もし
くは大気の酸素分圧より高いかもしくは低い酸化
雰囲気中で加熱処理を施した後、空冷、水冷もし
くは油冷し、合金の加工品の表層部の全体もしく
は一部に黒色酸化層を形成させてなることを特徴
とする光輝ある黒色に着色した金合金。 ４ (A) 純金（Au）、もしくは金の含有量が38重
量％以上で、銀（Ag）、ニツケル（Ni）、白金
族元素（Pt、Pd、Rh、Ir、Ru、Os）のうち１
種以上を含有する金合金と、 (B) 全量に対して３〜20重量％の銅（Cu）、全量
に対して３〜20重量％の鉄（Fe）、全量に対し
て３〜20重量％のコバルト（Co）、全量に対し
て１〜10重量％のチタン（Ti）のうち１種以
上と、 (C) 全量に対して0.5〜５重量％の亜鉛（Zn）と、 からなり、金以外の元素の総量が62重量％を越え
ない合金を、 この合金の融点以下の温度において大気中もし
くは大気の酸素分圧より高いかもしくは低い酸化
雰囲気中で加熱処理を施した後、空冷、水冷もし
くは油冷して合金の加工品の表層部の全体もしく
は一部に黒色酸化層を形成させるようにしたこと
を特徴とする光輝ある黒色に着色した金合金の着
色法。[Scope of Claims] 1 (A) Pure gold (Au) or having a gold content of 38% by weight or more, silver (Ag), nickel (Ni), platinum group elements (Pt, Pd, Rh, Ir, Ru , Os)
(B) Copper (Cu) in an amount of 3 to 20% by weight based on the total amount, iron (Fe) in an amount of 3 to 20% by weight based on the total amount, and 3 to 2% by weight based on the total amount. % cobalt (Co), 1 to 10% by weight of titanium (Ti), and the total amount of elements other than gold does not exceed 62% by weight. After heat treatment in the atmosphere or in an oxidizing atmosphere higher or lower than the oxygen partial pressure of the atmosphere at a temperature below the melting point, the alloy is cooled in air, water or oil, and then the entire or part of the surface layer of the processed alloy is heated. A gold alloy colored bright black, characterized by the formation of a black oxide layer. 2 (A) Pure gold (Au) or gold content of 38% by weight or more and one of silver (Ag), nickel (Ni), or platinum group elements (Pt, Pd, Rh, Ir, Ru, Os)
(B) Copper (Cu) in an amount of 3 to 20% by weight based on the total amount, iron (Fe) in an amount of 3 to 20% by weight based on the total amount, and 3 to 20% by weight based on the total amount % cobalt (Co), 1 to 10% by weight of titanium (Ti), and the total amount of elements other than gold does not exceed 62% by weight. After heat treatment in the atmosphere or in an oxidizing atmosphere higher or lower than the oxygen partial pressure of the atmosphere at a temperature below the melting point, the entire or part of the surface layer of the processed alloy is cooled by air, water or oil cooling. A method for coloring a gold alloy to a bright black color, characterized by forming a black oxide layer. 3 (A) Pure gold (Au) or gold content of 38% by weight or more and one of silver (Ag), nickel (Ni), or platinum group elements (Pt, Pd, Rh, Ir, Ru, Os)
(B) Copper (Cu) in an amount of 3 to 20% by weight based on the total amount, iron (Fe) in an amount of 3 to 20% by weight based on the total amount, and 3 to 20% by weight based on the total amount % of cobalt (Co), one or more of titanium (Ti) of 1 to 10% by weight based on the total amount, and (C) zinc (Zn) of 0.5 to 5% by weight based on the total amount, An alloy in which the total amount of elements other than gold does not exceed 62% by weight is heat-treated in the atmosphere or in an oxidizing atmosphere higher or lower than the oxygen partial pressure of the atmosphere at a temperature below the melting point of the alloy, and then air-cooled. A gold alloy colored in bright black, characterized by forming a black oxide layer on the whole or part of the surface layer of a processed alloy product by water cooling or oil cooling. 4 (A) Pure gold (Au) or gold content of 38% by weight or more and one of silver (Ag), nickel (Ni), or platinum group elements (Pt, Pd, Rh, Ir, Ru, Os)
(B) Copper (Cu) in an amount of 3 to 20% by weight based on the total amount, iron (Fe) in an amount of 3 to 20% by weight based on the total amount, and 3 to 20% by weight based on the total amount % of cobalt (Co), one or more of titanium (Ti) of 1 to 10% by weight based on the total amount, and (C) zinc (Zn) of 0.5 to 5% by weight based on the total amount, An alloy in which the total amount of elements other than gold does not exceed 62% by weight is heat-treated in the atmosphere or in an oxidizing atmosphere higher or lower than the oxygen partial pressure of the atmosphere at a temperature below the melting point of the alloy, and then air-cooled. A method for coloring a gold alloy to a bright black color, characterized by forming a black oxide layer on the whole or part of the surface layer of a processed alloy product by water cooling or oil cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23608889A JPH03100158A (en) | 1989-09-12 | 1989-09-12 | Gold alloy colored to black having brightness and method for coloring this alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23608889A JPH03100158A (en) | 1989-09-12 | 1989-09-12 | Gold alloy colored to black having brightness and method for coloring this alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03100158A JPH03100158A (en) | 1991-04-25 |
| JPH058266B2 true JPH058266B2 (en) | 1993-02-01 |
Family
ID=16995546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23608889A Granted JPH03100158A (en) | 1989-09-12 | 1989-09-12 | Gold alloy colored to black having brightness and method for coloring this alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03100158A (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04183836A (en) * | 1990-11-19 | 1992-06-30 | Seiko Instr Inc | Surface hardened colored gold alloy |
| JPH0717974B2 (en) * | 1990-11-28 | 1995-03-01 | 工業技術院長 | Gold alloy with shiny grey-black and black coloring and its coloring method |
| JPH0551669A (en) * | 1991-08-26 | 1993-03-02 | Tanaka Kikinzoku Kogyo Kk | Material for decoration |
| US5180551B2 (en) * | 1991-10-30 | 1999-02-09 | Fleet Precious Metals Inc | Gold alloys of exceptional yellow color and reversible hardness |
| JPH0657356A (en) * | 1991-11-14 | 1994-03-01 | Nippon Kogyo Ginkou:Kk | Gold alloy for decoration |
| US5323896A (en) * | 1993-06-24 | 1994-06-28 | Jones W Charles | Article packaging kit, system and method |
| US6148590A (en) * | 1995-10-11 | 2000-11-21 | Sealed Air Corporation | Packaging structure |
| US5678695A (en) * | 1995-10-11 | 1997-10-21 | Sealed Air Corporation | Packaging structure |
| US5694744A (en) * | 1996-02-29 | 1997-12-09 | Jones; William Charles | Article packaging kit, and method |
| US5676245A (en) * | 1996-04-02 | 1997-10-14 | Jones; William Charles | Article packaging kit, system and method |
| JPH11323461A (en) * | 1998-05-08 | 1999-11-26 | Tokuriki Honten Co Ltd | White gold |
| JPH11323462A (en) * | 1998-05-08 | 1999-11-26 | Tokuriki Honten Co Ltd | White gold |
| US6206194B1 (en) | 1998-06-10 | 2001-03-27 | Motion Design, Inc. | Boxes with internal resilient elements and insert therefor |
| US5893462A (en) * | 1998-07-01 | 1999-04-13 | Sealed Air Corporation | Retention package |
| US6158589A (en) * | 1999-09-23 | 2000-12-12 | Motion Design, Inc. | Boxes with internal resilient elements |
| US6311843B1 (en) | 1999-10-01 | 2001-11-06 | Motion Design, Inc. | Packaging boxes and components with internal resilient elements |
| US6302274B1 (en) | 1999-12-01 | 2001-10-16 | Sealed Air Corporation (Us) | Suspension and retention packaging structures and methods for forming same |
| US6920981B2 (en) | 2003-01-03 | 2005-07-26 | Ade, Inc. | Suspension packages and systems, cushioning panels, and methods of using same |
| SG160266A1 (en) * | 2008-09-08 | 2010-04-29 | Autium Pte Ltd | Coloured gold alloy and method for forming the same |
| US9352891B2 (en) | 2012-12-28 | 2016-05-31 | Ade, Inc. | Suspension packaging structures and methods of making and using the same |
| US10035638B1 (en) | 2013-08-12 | 2018-07-31 | Ade, Inc. | Retention package with article-loading aperture and method of making and using the same |
| JP6338397B2 (en) * | 2014-02-21 | 2018-06-06 | 共栄メタル株式会社 | Black plating solution and plating method for gold / palladium alloy plating |
| EP3070182B1 (en) * | 2015-03-17 | 2017-08-30 | The Swatch Group Research and Development Ltd. | White-gold alloy |
| EP3165621A1 (en) * | 2015-11-05 | 2017-05-10 | Nivarox-FAR S.A. | Method for manufacturing a gold alloy wire |
| EP3604626A1 (en) | 2018-08-03 | 2020-02-05 | COVENTYA S.p.A. | Electroplating bath for depositing a black alloy, method for the electrochemical deposition of a black alloy on a substrate, a black alloy and an article coated with such black alloy |
-
1989
- 1989-09-12 JP JP23608889A patent/JPH03100158A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03100158A (en) | 1991-04-25 |
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| Date | Code | Title | Description |
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| EXPY | Cancellation because of completion of term |