JPH05148508A - Production of sintered product with marble pattern - Google Patents
Production of sintered product with marble patternInfo
- Publication number
- JPH05148508A JPH05148508A JP33414491A JP33414491A JPH05148508A JP H05148508 A JPH05148508 A JP H05148508A JP 33414491 A JP33414491 A JP 33414491A JP 33414491 A JP33414491 A JP 33414491A JP H05148508 A JPH05148508 A JP H05148508A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- pellets
- metal
- fine
- binder
- 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
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は構築物の内装材、各種の
容器、宝飾品等の部材を対象とし、延性に富むと共に審
美性にも優れた焼結品の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a sintered product, which is excellent in ductility and aesthetics, and is intended for members such as interior materials for constructs, various containers, and jewelry.
【０００２】[0002]
【従来の技術】製品の審美性を求めるところから異種の
プラスチックス原料を混練して射出成型して得るプラス
チックス製品は構築物の内装材、各種の容器、宝飾品等
の部材として広く利用されているものの、材料強度に劣
るところから、より強度の高く審美性にも優れた材料の
提供が望まれていた。2. Description of the Related Art Plastic products obtained by kneading and injection-molding different kinds of plastic raw materials are widely used as interior materials for constructions, various containers, jewelery, etc. because of the demand for aesthetics of the products. However, since the material strength is inferior, it has been desired to provide a material having higher strength and excellent aesthetics.
【０００３】一方、強度の高さを望むところから、金属
材料を用いて成型した製品の表面にマーブル模様を塗料
を用いて描いているが、この場合とて、鋳造に因る場合
には製品表面に欠陥があらわれ易く、切削加工はコスト
高になり、粉末冶金では製品表面の光沢性に欠けるとい
う難点があった。On the other hand, in order to obtain high strength, a marble pattern is drawn on the surface of a product molded from a metal material by using a paint. In this case, however, the product may be affected by casting. Defects are likely to appear on the surface, the cost is high for cutting, and powder metallurgy has a drawback that the product surface lacks gloss.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記の課題を
解決して、延性や耐久性に富むと共に審美性にも優れた
焼結品の製造方法を提供する事を目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a method for producing a sintered product which is excellent in ductility and durability and is also aesthetically pleasing.
【０００５】[0005]
【課題を解決するための手段】本発明者等は、上記の課
題を解決すべく鋭意研究を行った結果、バインダーと、
平均粒径が４５μｍ以下の金属粉末とを加熱混練して得
た金属ペレットと、バインダーと平均粒径が４５μｍ以
下のファインセラミックス粉末とを加熱混練して得たフ
ァインセラミックスペレットとについて、金属粉末とフ
ァインセラミックス粉末とよりなる原料総量に対して、
ファインセラミックス粉末が容量％にて５〜３０％を占
める様な割合で、金属ペレットとファインセラミックス
ペレットとを個別に用意した後、この金属ペレットとフ
ァインセラミックスペレットとを同時に射出成型機のホ
ッパー口に供給して射出成型処理に移り、この射出成型
処理して得た成型体について脱バインダー処理を施した
後、該脱バインダー成型体を焼結して焼結品を得る事を
特徴とするマーブル模様をした焼結品の製造方法によ
り、課題の解決される事を見出だし本発明に至ったもの
である。Means for Solving the Problems As a result of earnest research to solve the above problems, the present inventors have found that a binder,
A metal pellet obtained by heating and kneading a metal powder having an average particle diameter of 45 μm or less, and a fine ceramic pellet obtained by heating and kneading a binder and a fine ceramic powder having an average particle diameter of 45 μm or less For the total amount of raw material consisting of fine ceramic powder,
After preparing metal pellets and fine ceramics pellets in such a ratio that the fine ceramics powder occupies 5 to 30% by volume, the metal pellets and the fine ceramics pellets are simultaneously placed in the hopper mouth of the injection molding machine. The marble pattern characterized by being supplied to an injection molding process, debinding the molded product obtained by the injection molding process, and then sintering the debinding molded product to obtain a sintered product. The present invention has been found out that the problems can be solved by the method for producing a sintered product.
【０００６】本発明で利用されるバインダーとしては、
射出成型粉末冶金用として公知のバインダー、例えば、
ポリエチレン、ポリプロピレン、天然ワックス等の使用
が可能であると共に、これらのバインダーを射出成型体
から除去する方法としても加熱脱脂、溶剤脱脂等の公知
の手段によればよいが、好ましくは不活性もしくは還元
性ガス雰囲気、さらには、真空中での加熱脱脂による事
が望まれる。As the binder used in the present invention,
Binders known for injection molding powder metallurgy, for example,
Polyethylene, polypropylene, natural wax and the like can be used, and as a method for removing these binders from the injection molded body, known means such as heat degreasing and solvent degreasing may be used, but it is preferably inert or reducing. It is desirable that the heating degreasing is performed in a volatile gas atmosphere and further in vacuum.
【０００７】[0007]
【作用】本発明で、バインダーと加熱混練してペレット
を作成する金属粉末並びにセラミックスの平均粒径を４
５μｍ以下と規定しているが、これは、バインダーと加
熱混練してペレットを作成する金属粉末並びにセラミッ
クスの平均粒径が４５μｍを超えると、バインダーを添
加して得た混練物を射出成型する際の混練物の流動性が
低下してきて、遂には成型作業を不可能にしてしまう様
になるばかりか、よしんば、成型作業が遂行されたとし
ても、射出成型体を焼結する際の焼結進行度の低下から
焼結完了品の密度が充分に採れなくなって耐久度の低い
製品しか得られなくなると共に、製品の表面光沢度も低
下して審美性に欠けるものしか提供出来なくなる為であ
る。In the present invention, the average particle size of the metal powder and ceramics, which are kneaded with the binder by heating to form pellets, is 4
It is specified to be 5 μm or less. This is because when the average particle diameter of the metal powder and ceramics to be heat-kneaded with the binder to make pellets exceeds 45 μm, the kneaded product obtained by adding the binder is injection-molded. The fluidity of the kneaded product will decrease, making it impossible to finally perform the molding work. Even if the molding work is carried out, sintering progresses when the injection molded body is sintered. This is because the density of the sintered product cannot be sufficiently taken due to the decrease in the degree of the product, and only a product with low durability can be obtained, and the surface glossiness of the product is also decreased, and only the product lacking aesthetics can be provided.
【０００８】また、本発明ではファインセラミックス粉
末が容量％にて５〜３０％である事を規定しているが、
この場合、ファインセラミックス粉末が容量％にて５％
未満であると製品にマーブル模様が浮かび上がり難く、
逆に、ファインセラミックス粉末が容量％にて３０％を
超えると焼結後の製品に亀裂等が発生し易くなると共
に、肝心のマーブル模様も薄らいで来る為である。Further, although the present invention specifies that the fine ceramic powder is 5 to 30% by volume,
In this case, the fine ceramic powder is 5% in volume%.
If it is less than, it is difficult for the marble pattern to appear on the product,
On the contrary, if the fine ceramic powder exceeds 30% by volume, cracks and the like are likely to occur in the product after sintering, and the essential marble pattern becomes thin.
【０００９】[0009]
【実施例】本発明の実施例を以下に詳述する。EXAMPLES Examples of the present invention will be described in detail below.
【００１０】［実施例１］平均粒径５μｍのカーボニル
鉄粉が６０容量％であり、天然ワックスが２８容量％で
あり、ポリエチレンが１２容量％である様にして１５０
℃で混練して得た金属ペレットと、平均粒径０．３μｍ
のジルコニア粉末が５５容量％であり、天然ワックスが
３１．５容量％であり、ポリエチレンが１３．５容量％
である様にして１５０℃で混練して得たファインセラミ
ックスペレットとを９：１の割合で射出成型機のホッパ
ー口より供給し、射出成型圧を１２００Ｋｇ／ｃｍ2 と
してＪＳＰＭ標準 ２−６４に規定された粉末焼結体引
っ張り試験片を得る為の金型に射出成型して得た射出成
型体を、窒素気流中で３００℃にて１時間保持して脱バ
インダー第一次処理を行った後、２時間程かけて室温ま
で冷却し、あらためて、上記の脱バインダー第一次処理
品を真空炉に移して毎分１０℃の加熱速度にて７００℃
まで加熱し、７００℃にて３０分間保持する脱バインダ
ー第二次処理を施したのち、引き続き、毎分１０℃の加
熱速度にて１３００℃まで加熱し、１３００℃にて１時
間の焼結処理を施し、その後は炉内冷却にて１００℃ま
で冷却して、焼結炉より焼結体を取りだし、上記の焼結
体をガラスビーズでブラスト処理して得た製品の３０個
の試料に付いての引っ張り試験の結果によると、引っ張
り強度の平均値が１２０Ｋｇ／ｍｍ2を、伸びの平均値
が１５％を示すと共に、光沢度が高く、マーブル模様に
よる審美性に富む製品の提供を可能にした。Example 1 Carbonyl iron powder having an average particle size of 5 μm was 60% by volume, natural wax was 28% by volume, and polyethylene was 12% by volume.
Metal pellets obtained by kneading at ℃, average particle size 0.3μm
Of zirconia powder is 55% by volume, natural wax is 31.5% by volume, polyethylene is 13.5% by volume.
The fine ceramic pellets obtained by kneading at 150 ° C. in the same manner as above are supplied at a ratio of 9: 1 from the hopper port of the injection molding machine, and the injection molding pressure is set to 1200 Kg / cm 2 and is specified in the JSPM standard 2-64. After the injection-molded body obtained by injection-molding in a mold for obtaining the tensile test piece of the sintered powder sintered body was held at 300 ° C. for 1 hour in a nitrogen stream to perform the debinding primary treatment. After cooling to room temperature for about 2 hours, the above debindered primary treated product is transferred to a vacuum furnace again at 700 ° C at a heating rate of 10 ° C per minute.
After performing the secondary process of binder removal by heating to 700 ° C. for 30 minutes and then heating to 1300 ° C. at a heating rate of 10 ° C./min and sintering treatment at 1300 ° C. for 1 hour. After that, after cooling to 100 ° C by cooling in the furnace, the sintered body was taken out from the sintering furnace, and the above-mentioned sintered body was blast-treated with glass beads. According to the result of the tensile test, the average value of tensile strength is 120 kg / mm 2 , the average value of elongation is 15%, the glossiness is high, and it is possible to provide the product with the beautiful aesthetic by the marble pattern. did.
【００１１】［実施例２］平均粒径１０μｍのＮｉ２０
％−Ｃｕ合金粉が６０容量％であり、天然ワックスが２
４容量％であり、アクリル樹脂が１６容量％である様に
して１５０℃で混練して得た金属ペレットと、平均粒径
０．２μｍのアルミナ粉末が５５容量％であり、天然ワ
ックスが２７容量％であり、アクリル樹脂が１８容量％
である様にして１５０℃で混練して得たファインセラミ
ックスペレットとを８５：１５の割合にして射出成型
し、焼結処理を１０３０℃で１時間とした以外は実施例
１と同様にして得た製品の引っ張り強度の平均値が８０
Ｋｇ／ｍｍ2 を、伸びの平均値が２２％を示すと共に、
光沢度が高く、マーブル模様の審美性に富む製品の提供
を可能にした。Example 2 Ni20 having an average particle size of 10 μm
% -Cu alloy powder is 60% by volume, and natural wax is 2%.
4% by volume, acrylic resin 16% by volume, metal pellets obtained by kneading at 150 ° C. and alumina powder having an average particle size of 0.2 μm accounted for 55% by volume, and natural wax 27% by volume. %, 18% by volume of acrylic resin
Fine ceramic pellets obtained by kneading at 150 ° C. in the same manner as above were injection-molded at a ratio of 85:15 and sintered in the same manner as in Example 1 at 1030 ° C. for 1 hour. The average tensile strength of the products
Kg / mm 2 , with an average value of elongation of 22%,
We have made it possible to provide products with high gloss and a beautiful marble pattern.
【００１２】［比較例１］金属ペレットとファインセラ
ミックスペレットとの混合割合を９７：３とし、最終製
品でのファインセラミックスの容量％を２．８％とした
以外は実施例１と同様にして得た製品の表面は単一色で
あり、審美性に劣る物でしかなかった。[Comparative Example 1] The procedure of Example 1 was repeated except that the mixing ratio of the metal pellets and the fine ceramics pellets was 97: 3, and the volume percentage of the fine ceramics in the final product was 2.8%. The surface of the product had a single color and was inferior in aesthetics.
【００１３】［比較例２］金属ペレットとファインセラ
ミックスペレットとの混合割合を６５：３５とした以外
は実施例１と同様にして得た製品の表面は単一色であ
り、審美性に劣る物でしかなかったばかりか、その表面
には亀裂の発生が見られた。[Comparative Example 2] The surface of the product obtained in the same manner as in Example 1 except that the mixing ratio of the metal pellets and the fine ceramics pellets was 65:35 had a single color and was inferior in aesthetics. Not only that, but cracks were found on the surface.
【００１４】［比較例３］金属粉末として平均粒子径が
５６μｍのＮｉ２０％−Ｃｕ合金粉を用いた以外は実施
例２と同様にして処理しようとしたが、混練物の流動性
が悪く、射出成型作業が充分に為され無かった。[Comparative Example 3] An attempt was made in the same manner as in Example 2 except that Ni20% -Cu alloy powder having an average particle size of 56 µm was used as the metal powder, but the fluidity of the kneaded product was poor and injection was performed. The molding work was not done enough.
【００１５】［比較例４］原料粉末として３ｍｏｌ％の
イットリヤを含有した平均粒径が０．０３μｍのジルコ
ニヤ粉末を用い、実施例１と同様な寸法の金型にプレス
成型後、１４００℃で４時間かけて焼結処理して得られ
た製品について測定した結果は引っ張り強さの値が１１
６Ｋｇ／ｍｍ2 であったものの、伸び値は僅かに０．１
％でしかなかった。[Comparative Example 4] Zirconia powder containing 3 mol% of yttria and having an average particle size of 0.03 μm was used as a raw material powder, which was press-molded into a mold having the same size as in Example 1 and then at 4 ° C. at 1400 ° C. The tensile strength of the product obtained by sintering the product for 11 hours was 11
Although it was 6 kg / mm 2 , the elongation value was only 0.1
It was only%.
【００１６】［比較例５］原料粉末として平均粒径が
０．６３μｍのαアルミナ粉末のみを用い，１４００℃
で焼結処理した以外、比較例４と同様にして得られた製
品について測定した結果は引っ張り強さの値は８０Ｋｇ
／ｍｍ2 でしかなく、また、伸び値も僅かに０．１％で
しかなかった。[Comparative Example 5] As a raw material powder, only α-alumina powder having an average particle size of 0.63 μm was used, and the temperature was 1400 ° C.
The result of measurement on the product obtained in the same manner as in Comparative Example 4 except that the sintering treatment was carried out at
/ Mm 2 and the elongation value was only 0.1%.
【００１７】以上に示した如く、本発明法による時は、
展延性に富み、光沢度が高く、審美性に富む製品を容易
に提供する事を可能にした。As described above, according to the method of the present invention,
This makes it possible to easily provide products with excellent spreadability, high gloss, and aesthetics.
【００１８】[0018]
【発明の効果】本発明の実施による時は、展延性に富
み、耐久性もよく、光沢度が高く、マーブル模様による
審美性に富む製品を容易に提供する事が可能になった
為、斯る製品を広く利用する建築内装関係や、宝飾品製
造関係の斯業界に寄与するところ大なるものがある。As described above, according to the present invention, it is possible to easily provide a product which is rich in spreadability, has good durability, has a high glossiness, and has an aesthetic effect due to a marble pattern. There is a great contribution to the industry related to building interiors and jewelery manufacturing, where products are widely used.
Claims (3)
の金属粉末とを加熱混練して得た金属ペレットと、バイ
ンダーと平均粒径が４５μｍ以下のファインセラミック
ス粉末とを加熱混練して得たファインセラミックスペレ
ットとについて、金属粉末とファインセラミックス粉末
とよりなる原料総量に対して、ファインセラミックス粉
末が容量％にて５〜３０％を占める様な割合で、金属ペ
レットとファインセラミックスペレットとを個別に用意
した後、この金属ペレットとファインセラミックスペレ
ットとを同時に射出成型機のホッパー口に供給して射出
成型処理に移り、この射出成型処理して得た成型体につ
いて脱バインダー処理を施した後、該脱バインダー成型
体を焼結して焼結品を得る事を特徴とするマーブル模様
をした焼結品の製造方法。1. A fine powder obtained by heat-kneading a binder and a fine ceramic powder having an average particle size of 45 μm or less, and a metal pellet obtained by heating and kneading a metal powder having an average particle size of 45 μm or less. Regarding ceramics pellets, metal pellets and fine ceramics pellets are separately prepared in such a ratio that the fine ceramics powder occupies 5 to 30% in volume% with respect to the total amount of raw material consisting of metal powder and fine ceramics powder. After that, the metal pellets and the fine ceramics pellets are simultaneously supplied to the hopper port of the injection molding machine and transferred to the injection molding process, and the molded body obtained by the injection molding process is subjected to the binder removal treatment and then the demolding treatment. Manufacture of a sintered product with a marble pattern characterized by sintering a binder molded body to obtain a sintered product Law.
り、ファインセラミックス粉末がアルミナ粉末である事
を特徴とする請求項１記載のマーブル模様をした焼結品
の製造法。2. The method for producing a marbled sintered product according to claim 1, wherein the metal powder is cupronickel powder and the fine ceramic powder is alumina powder.
ックス粉末がジルコニア粉末である事を特徴とする請求
項１記載のマーブル模様をした焼結品の製造法。3. The method for producing a marble-patterned sintered product according to claim 1, wherein the metal powder is iron powder and the fine ceramic powder is zirconia powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33414491A JPH05148508A (en) | 1991-11-21 | 1991-11-21 | Production of sintered product with marble pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33414491A JPH05148508A (en) | 1991-11-21 | 1991-11-21 | Production of sintered product with marble pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05148508A true JPH05148508A (en) | 1993-06-15 |
Family
ID=18274026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33414491A Pending JPH05148508A (en) | 1991-11-21 | 1991-11-21 | Production of sintered product with marble pattern |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05148508A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011021656A1 (en) * | 2009-08-19 | 2011-02-24 | 相田化学工業株式会社 | Method for producing decorative metallic article, and decorative metallic article |
| JP2012502183A (en) * | 2008-09-12 | 2012-01-26 | ワールプール・エシ・ア | Metallurgical composition of particulate material, self-lubricating sintered body, and method for obtaining self-lubricating sintered body |
| WO2015061817A3 (en) * | 2013-10-28 | 2015-07-02 | Erich Neubauer | Material having a multiphase structure |
-
1991
- 1991-11-21 JP JP33414491A patent/JPH05148508A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012502183A (en) * | 2008-09-12 | 2012-01-26 | ワールプール・エシ・ア | Metallurgical composition of particulate material, self-lubricating sintered body, and method for obtaining self-lubricating sintered body |
| WO2011021656A1 (en) * | 2009-08-19 | 2011-02-24 | 相田化学工業株式会社 | Method for producing decorative metallic article, and decorative metallic article |
| WO2015061817A3 (en) * | 2013-10-28 | 2015-07-02 | Erich Neubauer | Material having a multiphase structure |
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