JPS5857495B2 - Palladium-cobalt-nickel alloy for porcelain baking - Google Patents
Palladium-cobalt-nickel alloy for porcelain bakingInfo
- Publication number
- JPS5857495B2 JPS5857495B2 JP55061111A JP6111180A JPS5857495B2 JP S5857495 B2 JPS5857495 B2 JP S5857495B2 JP 55061111 A JP55061111 A JP 55061111A JP 6111180 A JP6111180 A JP 6111180A JP S5857495 B2 JPS5857495 B2 JP S5857495B2
- Authority
- JP
- Japan
- Prior art keywords
- porcelain
- cobalt
- palladium
- alloy
- nickel alloy
- 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
Description
【発明の詳細な説明】
本発明は、削り取った歯の患部あるいは欠損部に装着す
る陶歯を作るときに、陶材を焼付ける支台とするための
陶材焼付用パラジウム−コバルトニッケル合金に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a palladium-cobalt nickel alloy for porcelain baking, which is used as a base for baking porcelain when making porcelain teeth to be attached to the affected or defective part of a tooth that has been ground down. It is something.
これまで、一般に用いられて来た陶材焼付用合金におい
ては、金を主体とする貴金属合金とニッケル。Up until now, alloys for porcelain baking that have been commonly used include precious metal alloys mainly consisting of gold and nickel.
コバルト。クロムを主体とする卑金属合金に大別されて
供されている。cobalt. It is broadly classified into base metal alloys that mainly consist of chromium.
而して、前者は、高価である上に、硬さが低く、引張強
度が小さいため、咀唾の際の交合時に印加される機械的
な反覆力で、陶材が剥離４し易いことまた、高温強度が
弱いことにより陶材の高温加熱焼成処理中に熱変形し、
精度良く適合しなくなるなどの欠点がある。However, the former is not only expensive but also has low hardness and low tensile strength, so the porcelain tends to peel off due to the repeated mechanical force applied when saliva intersects during chewing. , Due to the low high-temperature strength, the porcelain is thermally deformed during the high-temperature firing process,
It has drawbacks such as not being able to fit accurately.
他方、後者に於ては、低コストである上に、硬さ高温強
度の点で共に満足すべきものではあるが、陶材との焼付
強度が不充合なため、前記同様、咀唾時の衝撃力によっ
て陶材が剥離する欠点がある。On the other hand, the latter is low cost and satisfactory in terms of hardness and high-temperature strength, but as mentioned above, the baking strength with the porcelain is insufficient, so the The drawback is that the porcelain peels off due to impact force.
本発明は、卑金属合金の陶材焼付強度を改善することが
目的である。The object of the present invention is to improve the porcelain baking strength of base metal alloys.
本発明は、陶材焼付用合金属合金の代表例である、４０
．％Ｎ １２５ＸＣｒ １５％ｃ 。The present invention discloses a typical example of a metal alloy for porcelain baking.
．． %N 125XCr 15%c.
−２０紳ｄ合金のＣｒを使用せずＰｄを増加させさせる
ことによって陶材焼付強度の大きなＰｄ−Ｃｏ−Ｎｉ合
金を提供するものである。The present invention provides a Pd-Co-Ni alloy with high porcelain baking strength by increasing Pd without using Cr in the -20 Md alloy.
市販されている卑金属系合金の調査結果、引抜き強度は
・ １００Ｋｇ／ｃｄ程度のものが多く、引抜き試験後
の破折形態も陶材から破折して、試料合金に陶材の破片
が残っている試料はほとんどなかった。As a result of investigation of commercially available base metal alloys, the pull-out strength of many of them is around 100 kg/cd, and the fracture pattern after the pull-out test is that the sample alloy breaks off from the porcelain, leaving porcelain fragments in the sample alloy. There were very few samples.
以上の調査結果から、本発明では、引抜き強度が１４
ｏＫｇ／ｃ４以上であるＰｄ−Ｃｏ−Ｎｉ合金を目標と
した。From the above investigation results, the present invention has a pull-out strength of 14
The target was a Pd-Co-Ni alloy with oKg/c4 or more.
次に、試験方法および実施例について説明する。Next, test methods and examples will be explained.
配合した合金組成の一例を第１表に示す。An example of the blended alloy composition is shown in Table 1.
第１表組成の合金を全量５０ｇ になるように秤量し、
アルゴンアーク溶解炉で溶解した。Weigh the alloys with the compositions in Table 1 to a total amount of 50g,
Melted in an argon arc melting furnace.
これらの溶解材を熱処理後スイージング加工して直径３
、ｌｉｍ、長さ２５間の円柱状の陣に仕上げた。After heat treatment, these melted materials are sweezed to a diameter of 3.
, rim, finished in a cylindrical formation with a length of 25 meters.
金属焼付用陶材としては、セラムコ社のオペーク陶利を
使用し、加圧築盛し、メーカーの指示に従って焼成した
。Ceramco's opaque porcelain was used as the porcelain material for metal firing, which was then built up under pressure and fired according to the manufacturer's instructions.
第２図に示す３．ｌφ×２５關 のＰｄ−Ｃｏ−Ｎｉ合
金片１に外径ｌＯφＸ ｌ Ｏｍｍ となるように陶材
２を焼付けた試験片をインストローン万能試験機で引抜
き、試験を行い破断荷重：ｐ（Ｋｇ）を測定した。3 shown in Figure 2. A test piece of Pd-Co-Ni alloy piece 1 of lφ x 25 mm with porcelain 2 baked to have an outer diameter of lOφ was measured.
引抜き強度は次式により算出した。The pull-out strength was calculated using the following formula.
引抜き強度（匂、４４）二ｐ／πｄｔ
ここで、ｄは棒状試料の直径（ｃｍ）テアリ〜ｔは陶材
焼付面の長さくｃｍ）である。Pulling strength (odor, 44) 2p/πdt Here, d is the diameter (cm) of the rod-shaped sample, and t is the length (cm) of the porcelain baked surface.
結果を第１表に示す。The results are shown in Table 1.
なお、これらの値は、試験片５〜８本の平均値を示す。In addition, these values show the average value of 5-8 test pieces.
第１表および追加実験の結果から、当初の目標である・
引抜強度が１５０Ｋｇ／ｃｄ以上のものは、第１図に示
す領域Ａの組成範囲の合金で、また、引抜強度が２００
Ｋｇ／ｃｒＡ以上のものは、領域Ｂの組成範囲の合金で
得られることが明らかである。From Table 1 and the results of additional experiments, the initial goal was
Those with a pullout strength of 150 kg/cd or more are alloys in the composition range of region A shown in Figure 1, and alloys with a pullout strength of 200 kg/cd or more.
It is clear that Kg/crA or higher can be obtained with alloys in the region B composition range.
また、上記範囲の合金の機械的性質および鋳造性は従来
の卑金属系の合金と同等であり、耐食性においては、Ｐ
ｄ ｔが多いため、すぐれていることも確認した。In addition, the mechanical properties and castability of alloys in the above range are equivalent to those of conventional base metal alloys, and in terms of corrosion resistance, P
It was also confirmed that it is superior because it has a large number of dt.
また、本合金の鋳造性の改善のために、０．５％程度の
Ｓｉの添加が有効であり、合金の融点を下げるためには
、川〜１５％のＡｕの添加が有効であった。Furthermore, to improve the castability of this alloy, it was effective to add about 0.5% of Si, and to lower the melting point of the alloy, it was effective to add ~15% of Au.
第１図は、Ｐｄ Ｃｏ Ｎｉａ元系合金の等引抜き強度
曲線を示し、斜線をほどこした領域で示される組成の合
金の引抜き強度は１４０Ｋｇ／ｃｒＩＬ以上であること
を示す説明図、第２図は陶材を焼付けた引抜き試験用試
料の大きさを示す概略図である。
１は陶材、２はＰｄ −Ｃｏ −Ｎｉ合金。Figure 1 shows the isometric pullout strength curve of the Pd Co Nia element alloy, and is an explanatory diagram showing that the pullout strength of the alloy with the composition indicated by the shaded area is 140 kg/crIL or more. It is a schematic diagram showing the size of a sample for a pullout test made of fired porcelain. 1 is a porcelain material, and 2 is a Pd-Co-Ni alloy.
Claims (1)
系状態図において、領域Ａで示される範囲の組成を有す
る陶材焼付用パラジウム−コバルトニッケル合金。1. A palladium-cobalt-nickel alloy for porcelain baking having a composition within the range indicated by region A in the palladium-cobalt-nickel ternary system phase diagram shown in FIG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55061111A JPS5857495B2 (en) | 1980-05-08 | 1980-05-08 | Palladium-cobalt-nickel alloy for porcelain baking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55061111A JPS5857495B2 (en) | 1980-05-08 | 1980-05-08 | Palladium-cobalt-nickel alloy for porcelain baking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56156731A JPS56156731A (en) | 1981-12-03 |
| JPS5857495B2 true JPS5857495B2 (en) | 1983-12-20 |
Family
ID=13161636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55061111A Expired JPS5857495B2 (en) | 1980-05-08 | 1980-05-08 | Palladium-cobalt-nickel alloy for porcelain baking |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5857495B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0249355Y2 (en) * | 1984-04-04 | 1990-12-26 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8503284A (en) * | 1985-11-27 | 1987-06-16 | Elephant Edelmetaal Bv | PALLADIUM COBAL ALLOYS; MANUFACTURE OF A CARROT. |
| FR2768258A1 (en) | 1997-09-10 | 1999-03-12 | Engelhard Clal Sas | Magnetic iron-containing precious metal alloy |
-
1980
- 1980-05-08 JP JP55061111A patent/JPS5857495B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0249355Y2 (en) * | 1984-04-04 | 1990-12-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56156731A (en) | 1981-12-03 |
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