JPS58177428A - Dental silver-indium alloy containing platinum and its manufacture - Google Patents

Dental silver-indium alloy containing platinum and its manufacture

Info

Publication number
JPS58177428A
JPS58177428A JP6137782A JP6137782A JPS58177428A JP S58177428 A JPS58177428 A JP S58177428A JP 6137782 A JP6137782 A JP 6137782A JP 6137782 A JP6137782 A JP 6137782A JP S58177428 A JPS58177428 A JP S58177428A
Authority
JP
Japan
Prior art keywords
alloy
platinum
water
silver
melt
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
Application number
JP6137782A
Other languages
Japanese (ja)
Inventor
Hiroaki Ohashi
大橋 博明
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.)
OHASHI KIKINZOKU KOGYO KK
Original Assignee
OHASHI KIKINZOKU KOGYO KK
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 OHASHI KIKINZOKU KOGYO KK filed Critical OHASHI KIKINZOKU KOGYO KK
Priority to JP6137782A priority Critical patent/JPS58177428A/en
Publication of JPS58177428A publication Critical patent/JPS58177428A/en
Pending legal-status Critical Current

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  • Dental Preparations (AREA)

Abstract

PURPOSE:To obtain a dental Ag-In alloy contg. Pt, having fine luster, and causing no discoloration after application by melting Pt, Ag and Pd, granulating the melt in water, melting the resulting granular alloy together with In, Zn and Al, and granulating the melt in water. CONSTITUTION:Necessary amounts of Pt, Ag and Pb are put in a crucible so as to make the Pt content 0.01-3%, and they are melted by heating with an oxygen burner. The melt is charged into water and solidified in the form of granules. The resulting granular Pt-Ag-Pd alloy is dried, put in a crucible together with necessary amounts of In, Zn and Al, and melted in an electric furnace heated to about 700 deg.C. The melt is agitated to well mix the constituent metals, and the melt is charged into water and solidified in the form of granules. The granules are taken out of the water and dried. By this method an Ag-In alloy contg. Pt and suitable for a crown, an inlay, etc. is obtd. The alloy has high toughness, satisfactory workability and metallic luster tinged with the color of platinum, and it causes no discoloration.

Description

【発明の詳細な説明】 本発明は歯科用の白金含有銀インジウム合金及びその製
造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a platinum-containing silver-indium alloy for dental use and a method for producing the same.

銀インジウムを主成分とした合金は歯科用材料として歯
冠修復に使用されているが、この合金は施用後経時的に
光沢を失って黒ずみ、治療者の希望を十分に満たし得な
かった。
An alloy containing silver indium as a main component is used as a dental material for crown restoration, but this alloy loses its luster and darkens over time after application, so it has not been able to fully meet the wishes of practitioners.

本発明は歯科用材料として歯冠修復に使用でき、良好な
光沢を有して施用後食色のない銀インジウム合金の提供
を目的とする。
An object of the present invention is to provide a silver-indium alloy that can be used as a dental material for crown restoration, has good gloss, and does not become discolored after application.

本発明の銀インジウム合金は、銀及びインジウ、ムを主
成分とし、白金’i0.01〜3俤含む歯科用の白金含
有銀インジウム合金である。
The silver-indium alloy of the present invention is a platinum-containing silver-indium alloy for dental use, which contains silver and indium as the main components, and contains 0.01 to 3 platinum i.

本発明の白金含有欽インジウム合金の製造方法は、白金
1.銀及びパラジウムの各所定量をるつぼに入れて酸素
バーナーで加熱溶解した後その溶液を水中に投入して粒
状の白金銀パラジウム合金を得、得られた粒状の白金銀
パラジウム合金をインジウム、亜鉛及びアルミニウムの
各所定量とともにるつほに入れて約700℃の電気炉屯
で溶解し、生じた溶液を水中に投入して粒状化すること
を特徴とする方法である。
The method for producing a platinum-containing indium alloy of the present invention includes platinum 1. Predetermined amounts of each of silver and palladium were placed in a crucible and heated and melted with an oxygen burner, and then the solution was poured into water to obtain a granular platinum-silver-palladium alloy. This method is characterized by placing a predetermined amount of each in a rutsuho and melting it in an electric furnace at about 700° C., and then pouring the resulting solution into water and granulating it.

本発明の白金含有銀インジウム合金は、公知の銀及びイ
ンジウムを主成分とし、パラジウム、亜鉛、アルミニウ
ムを含む歯科用合金とすることに加えて、銀の一部を白
金に置き換える点で組成的に異なり、銀69%以上、イ
ンジラム22係以上、パラジウム2.0%以下、亜鉛6
%以下、アルミニウム1.0係以下を含み、さらに白金
を0.01〜3%含有する。
The platinum-containing silver-indium alloy of the present invention is a dental alloy mainly composed of known silver and indium and containing palladium, zinc, and aluminum, and has a compositional change in that a part of the silver is replaced with platinum. different, silver 69% or more, indiram 22% or more, palladium 2.0% or less, zinc 6
% or less, aluminum content is less than 1.0%, and further contains platinum in an amount of 0.01 to 3%.

白金含有量が0.01%未満では合金の耐変色性が十分
でなく、また白金含有量が3%を超えても白金の含量の
増加による特性改良の効果が少ない。
If the platinum content is less than 0.01%, the discoloration resistance of the alloy will not be sufficient, and even if the platinum content exceeds 3%, the effect of improving properties by increasing the platinum content will be small.

本発明の白金含有銀インジウム合金は白金色に帯色した
金属光沢を有し、歯科用材料として耐変色性、耐磨耗性
、耐食性に優れ、良好な展延性を有し、また鋳造性が良
好である。
The platinum-containing silver-indium alloy of the present invention has a platinum-colored metallic luster, has excellent discoloration resistance, abrasion resistance, and corrosion resistance as a dental material, has good malleability, and has good castability. In good condition.

本発明の白金含有銀インジウム合金は次のように製造さ
れる。
The platinum-containing silver-indium alloy of the present invention is manufactured as follows.

まず、白金、銀及びパラジウムの各所定量をるつぼに入
れて酸素バーナーで加熱する。溶解は炭素棒で攪拌しな
がら行ない、高溶解点の白金とパラジウムは溶は難いが
炭素棒で未溶解固相を表面に掬い上げるようにして直接
酸素バーナーで加熱すると容易に溶解できる。良く攪拌
して成分を混合し溶液を水中に投入して粒状に固化させ
る。
First, predetermined amounts of platinum, silver, and palladium are placed in a crucible and heated with an oxygen burner. Dissolution is carried out while stirring with a carbon rod.Although platinum and palladium, which have high melting points, are difficult to dissolve, they can be easily dissolved by scooping up the undissolved solid phase to the surface with the carbon rod and heating it directly with an oxygen burner. Stir well to mix the ingredients, then pour the solution into water and solidify into granules.

得られた粒状の白金銀パラジウム合金を乾燥し、インジ
ウム、亜鉛及びアルミニウムの各所定量とともにるつほ
に入れ、予め約700℃に加熱した電気炉内で溶解させ
る。その際炭素棒を用いて攪拌し成分金属を良く混合さ
せることが好ましい。′良く混合した溶液を水中に投入
して粒状に固化させ、水中から取出して乾燥器中で乾燥
する。
The resulting granular platinum-silver-palladium alloy is dried, placed in a melting pot together with predetermined amounts of indium, zinc, and aluminum, and melted in an electric furnace preheated to about 700°C. At that time, it is preferable to stir using a carbon rod to mix the component metals well. 'Pour the well-mixed solution into water to solidify it into granules, then take it out of the water and dry it in a dryer.

上記方法によシ製造した白金0.5%、銀71.8係、
インジウム22.5%、パラジウム1.(1、亜鉛3.
8%、アルミニウム0.41含む白金含有銀インジウム
合金は、これを電気炉で溶解し、予め約700℃に加熱
した鋳造型に注入放冷して作っだ2±0.5.、φx5
0mmの引張試験片及び肉厚5鶴以上の硬さ試験片につ
いてJISZ2241及。、18□2243に準拠し1
行ヶつた引張試験及び硬さ試験で引張強さ約33kgf
/−1伸び約9係、プリネル硬さ約94を示し、鋳廃し
、JISR6253による400番研磨紙で研磨した有
効平面部約20mmX15mmの試験片についてJIS
T6105に準拠して行なった変色試験で変色がなかっ
た。
0.5% platinum and 71.8% silver produced by the above method,
Indium 22.5%, Palladium 1. (1. Zinc 3.
A platinum-containing silver-indium alloy containing 8% aluminum and 0.41% aluminum was made by melting it in an electric furnace and pouring it into a casting mold preheated to about 700°C and allowing it to cool. ,φx5
JIS Z2241 and 0 mm tensile test pieces and hardness test pieces with a wall thickness of 5 or more. , 1 in accordance with 18□2243
Tensile strength approximately 33kgf in line-gathered tensile test and hardness test
JIS for a test piece with an effective flat area of about 20 mm x 15 mm that was discarded and polished with No. 400 abrasive paper according to JISR 6253, exhibiting a /-1 elongation of about 9 modulus and Purinel hardness of about 94.
There was no discoloration in the discoloration test conducted in accordance with T6105.

本発明の合金は従来の銀インジウム合金より粘性が高く
、硬度が適当で脆くなく、展延性が良く、歯科用合金と
して加工性が良好で、ブリッジ、インレー、キャストク
ラウン、継続歯などの歯冠修復に適し、白金色に帯色し
た金属光沢を有して変色がなく、従来の銀インジウム合
金よシはるかに治療者の希望に添いうるものである。
The alloy of the present invention has higher viscosity than conventional silver-indium alloys, has appropriate hardness, is not brittle, has good malleability, and has good workability as a dental alloy. It is suitable for repair, has a platinum-colored metallic luster and does not discolor, and is much more in line with the desires of the therapist than conventional silver-indium alloys.

Claims (2)

【特許請求の範囲】[Claims] (1)銀及びインジウムを主成分とし、白金を0.01
〜3%含む歯科用の白金含有銀インジウム合金。
(1) The main components are silver and indium, and platinum is 0.01%.
Dental platinum-containing silver-indium alloy containing ~3%.
(2)  白金、銀及びパラジウムの各所定量をるつぼ
に入れて酸素バーナーで加熱溶解した後その溶液を水中
に投入して粒状の白金銀パラジウム合金を得、得られた
粒状の白金銀パラジウム合金をインジウム、亜鉛及びア
ルミニウムの各所定量とともにるつぼに入れて約700
℃の電気炉中で溶解し、生じた溶液を水中に投入して粒
状化することを特徴とする白金含有銀インジウム合金の
製造方法。
(2) Predetermined amounts of each of platinum, silver, and palladium are placed in a crucible, heated and melted with an oxygen burner, and then the solution is poured into water to obtain a granular platinum-silver-palladium alloy. Approximately 700
1. A method for producing a platinum-containing silver-indium alloy, which comprises melting the alloy in an electric furnace at ℃, and pouring the resulting solution into water to granulate it.
JP6137782A 1982-04-13 1982-04-13 Dental silver-indium alloy containing platinum and its manufacture Pending JPS58177428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6137782A JPS58177428A (en) 1982-04-13 1982-04-13 Dental silver-indium alloy containing platinum and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6137782A JPS58177428A (en) 1982-04-13 1982-04-13 Dental silver-indium alloy containing platinum and its manufacture

Publications (1)

Publication Number Publication Date
JPS58177428A true JPS58177428A (en) 1983-10-18

Family

ID=13169422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6137782A Pending JPS58177428A (en) 1982-04-13 1982-04-13 Dental silver-indium alloy containing platinum and its manufacture

Country Status (1)

Country Link
JP (1) JPS58177428A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337291A (en) * 1976-09-17 1978-04-06 Yokogawa Hokushin Electric Corp Tele-monitoring device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337291A (en) * 1976-09-17 1978-04-06 Yokogawa Hokushin Electric Corp Tele-monitoring device

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