JPS61132504A - Production of tin powder - Google Patents
Production of tin powderInfo
- Publication number
- JPS61132504A JPS61132504A JP25282484A JP25282484A JPS61132504A JP S61132504 A JPS61132504 A JP S61132504A JP 25282484 A JP25282484 A JP 25282484A JP 25282484 A JP25282484 A JP 25282484A JP S61132504 A JPS61132504 A JP S61132504A
- Authority
- JP
- Japan
- Prior art keywords
- tin
- nitrogen
- powder
- plasma
- tin powder
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/076—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with titanium or zirconium or hafnium
- C01B21/0761—Preparation by direct nitridation of titanium, zirconium or hafnium
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はＴｉＮ粉末の製造方法に係り、より詳細には、
窒素プラズマを利用してＴｉＮ粉末を製造する方法に関
する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for producing TiN powder, and more specifically,
The present invention relates to a method of manufacturing TiN powder using nitrogen plasma.
（従来の技術及び問題点）
金属及びその化合物の粉末は、主として粉末冶金用に用
いられるが、顔料、塗料用などの各種分野の原料として
も用いられ、種々の形状１粒度・品質等々の性状のもの
が要求されている。(Prior art and problems) Powders of metals and their compounds are mainly used for powder metallurgy, but they are also used as raw materials for various fields such as pigments and paints. are required.
かへる粉末の製造方法は、原理的、技術的に多種多様で
あり、同一物質の粉末でも製造方法の違いによってその
性状が異なってくるので、所望の粉末に応じた適切な製
造方法を採用する必要がある。There are a wide variety of manufacturing methods for heating powder in principle and technology, and even powders of the same substance can have different properties depending on the manufacturing method, so adopt the appropriate manufacturing method depending on the desired powder. There is a need to.
この点、主として金色原料に用いられ、超硬工具製造用
などに用いられるＴｉＮ粉末は、従来。In this respect, TiN powder, which is mainly used as a gold raw material and used for manufacturing cemented carbide tools, is conventional.
例えば、チタン酸化物Ｔｉｅ、を水素還元して純Ｔｉ粒
、粉末を製造し、更にこれを窒化してＴｉＮ粉末を得る
方法により、製造されていた。このような製造方法は、
上記固体還元法により製造された純Ｔｉ粒乃至粉末を原
料とするものであるから、ＴｉＮ粉末は高価となり、ま
た窒化によりＴｉＮにするので反応が遅く、また種々の
粒度のＴｉＮ粉末を得ることがむずかしく、安価にＴｉ
Ｎ粉末を多量生産することができない等の問題があった
。For example, titanium oxide (Tie) is reduced with hydrogen to produce pure Ti grains or powder, which is then nitrided to obtain TiN powder. This manufacturing method is
Since the raw material is pure Ti grains or powder produced by the above-mentioned solid reduction method, TiN powder is expensive, and since it is made into TiN by nitriding, the reaction is slow, and it is difficult to obtain TiN powder of various particle sizes. Difficult and inexpensive Ti
There were problems such as the inability to mass-produce N powder.
（発明の目的）
本発明は、前述の問題点を解決するためになされたもの
であって１種々の粒度のＴｉＮ粉末を低コストで迅速、
多量に製造できる新規なＴｉＮ粉末の製造方法を提供す
ることを目的とするものである。(Objective of the Invention) The present invention has been made to solve the above-mentioned problems.
The object of the present invention is to provide a novel method for producing TiN powder that can be produced in large quantities.
（発明の構成）
か＼る目的達成のため、本発明では、従来の如く純Ｔｉ
でしかも粒、粉末状のＴｉ粉末を原料として使用するこ
となく、また純Ｔｉ粉末の製造と窒化の如く多工程をと
ることなく、単に単一工程で以て任意形状のＴｉ材を原
料とし窒素プラズマを利用してＴｉＮ粉末を製造するも
のであって、その特徴とするところは、窒素プラズマを
Ｔｉ材に照射することによってＴｉを溶解すると同時に
窒素と反応させ、得ら九だ溶融Ｔ ｉ Ｎを適宜流体で
噴霧し、或いは前記Ｔｉ材を高速回転させるときはその
遠心力により飛散させてＴｉＮ粉末を得ることにある。(Structure of the Invention) In order to achieve the above object, the present invention uses pure Ti as in the past.
Moreover, without using granular or powdered Ti powder as a raw material, and without requiring multiple steps such as manufacturing pure Ti powder and nitriding, a Ti material of any shape can be used as a raw material in a single process. This method uses plasma to produce TiN powder, and its feature is that by irradiating the Ti material with nitrogen plasma, the Ti is melted and at the same time reacted with nitrogen, resulting in a molten TiN powder. TiN powder is obtained by spraying with a suitable fluid, or by scattering it by centrifugal force when the Ti material is rotated at high speed.
以下に本発明を実施例に基づいて詳述する。The present invention will be explained in detail below based on examples.
まず、ｙＸ料とするＴｉ材は棒状、線状、円板状等々の
形状のものを使用できる。したがって、チタンスクラッ
プなどの廃材を成形加工して上記形状で供することもで
きる。また、Ｔｉ材は窒素プラズマにより極めて高温で
一旦溶解されるので、従来のような純度の高いＴｉ材を
使用する必要はない。First, the Ti material used as the yX material can be in the shape of a rod, a line, a disk, or the like. Therefore, waste materials such as titanium scraps can be molded and provided in the above shape. Furthermore, since the Ti material is once melted at an extremely high temperature by nitrogen plasma, there is no need to use a Ti material with high purity as in the prior art.
原料Ｔｉ材を溶解する熱源としては、Ｔｉを溶解すると
同時に窒素と反応させてＴｉＮを生成するため、特に窒
素プラズマを利用する必要がある。As a heat source for melting the raw material Ti material, it is particularly necessary to use nitrogen plasma, since Ti is melted and simultaneously reacted with nitrogen to generate TiN.
窒素プラズマ発生装置は公知の各種型式のものでよく、
電流、窒素流量、プラズマトーチのノズル径などの窒素
プラズマ発生条件を調整することにより、極めて高温（
例、３５ｏＯ〜４０００℃）のエネルギーを原料Ｔｉ材
に与え、Ｔｉを溶解と同時に窒素を反応させることがで
きる。The nitrogen plasma generator may be of various known types;
By adjusting nitrogen plasma generation conditions such as current, nitrogen flow rate, and plasma torch nozzle diameter, extremely high temperatures (
For example, by applying energy of 35oO to 4000C) to the raw Ti material, it is possible to melt the Ti and react with nitrogen at the same time.
なお、原料Ｔｉ材は、溶解につれて窒素プラズマ発生装
置との間隔が変化するため、少なくとも一方を移動可能
にして間隔調整を行うことが好ましい。In addition, since the distance between the raw material Ti material and the nitrogen plasma generator changes as it melts, it is preferable to adjust the distance by making at least one movable.
窒素プラズマを照射した原料Ｔｉ材表面では、溶融Ｔｉ
が得られると同時に窒素と瞬時に反応し。On the surface of the raw Ti material irradiated with nitrogen plasma, molten Ti
reacts instantly with nitrogen as soon as it is obtained.
溶融ＴｉＮが生成されるが、この溶融ＴｉＮは微粉化手
段により噴霧状にされる。Molten TiN is produced, which is atomized by a pulverization means.
第１の手段としては、スリットノズルなどを使用してＮ
２ガス、Ａｒガス、圧搾空気又は水などの流体を原料Ｔ
ｉ材表面に直接若しくはそこから滴下するＴｉＮ液滴に
吹き付け、溶融ＴｉＮを噴霧するものである。流体の供
給圧力を変化することにより、得られるＴｉＮ粉末の粒
度をコントロールすることができ、圧力を高くする程、
粒度の細かいＴ ｉ Ｎ微粉末が得られる。The first method is to use a slit nozzle or the like to
Fluid such as 2 gas, Ar gas, compressed air or water is used as raw material T
This method sprays molten TiN directly onto the surface of the i-material or onto TiN droplets dripping from the surface. By changing the fluid supply pressure, the particle size of the TiN powder obtained can be controlled, and the higher the pressure, the more
A fine T i N powder with fine particle size is obtained.
第２の手段としては、ディスク状、棒状などの原料Ｔｉ
材を高速回転させて、その表面で瞬時に生成した溶融Ｔ
ｉＮを遠心力で飛散するものである。Ｔｉ材の回転速度
を増減することにより遠心力の大きさを調整でき、得ら
れるＴｉＮ粉末の粒度をコントロールすることができ１
回転速度を高速にする程、粒度の細かいＴｉＮ微粉末が
得られる。As a second means, raw material Ti in a disk shape, a rod shape, etc.
When the material is rotated at high speed, molten T is instantly generated on its surface.
The iN is dispersed by centrifugal force. By increasing or decreasing the rotational speed of the Ti material, the magnitude of the centrifugal force can be adjusted, and the particle size of the TiN powder obtained can be controlled1.
The higher the rotation speed is, the finer the particle size of the TiN powder can be obtained.
このように各種粒度のＴｉＮ粉末を製造することができ
るので、用途に応じた粒度のＴｉＮ粉末を提供でき、或
いは粒度の大きい粉末を製造後、ボールミル等で粉砕し
て粒度の小さいＴｉＮ微粉末として１例えば超硬用に供
するなどの適宜利用も可能である。Since TiN powder with various particle sizes can be manufactured in this way, it is possible to provide TiN powder with a particle size depending on the application, or after manufacturing a powder with a large particle size, it can be ground in a ball mill etc. to produce fine TiN powder with a small particle size. 1. For example, it can be used as appropriate, such as for use in cemented carbide.
なお、Ｔｉは化学反応性が極めて強く、酸素等の不純物
が混入し易いので、高純度のＴｉＮ粉末を得る場合には
、減圧下或いは不活性ガス雰囲気下で行うことが好まし
い。Note that since Ti has extremely strong chemical reactivity and is easily contaminated with impurities such as oxygen, it is preferable to carry out the process under reduced pressure or in an inert gas atmosphere when obtaining high-purity TiN powder.
（実施例） 次に本発明の実施例を示す。(Example) Next, examples of the present invention will be shown.
失産員上
第１図に示すように、プラズマトーチ１を用いて窒素プ
ラズマ２を発生させ、この窒素プラズマを原料Ｔｉ棒３
の端面に照射して、溶解したＴｉと窒素ガスとが反応し
て生成されたＴｉＮ溶液４を、スリット状のノズル５か
ら噴出する高速Ｎ２ガスを霧吹き状態に噴霧して、Ｔ
ｉ Ｎ微粉末６を得た。As shown in FIG.
A TiN solution 4 generated by the reaction of dissolved Ti and nitrogen gas is sprayed in a mist state with high-speed N gas ejected from a slit-shaped nozzle 5.
i N fine powder 6 was obtained.
窒素プラズマ発生装置としては、直流プラズマジェット
炉、高周波誘導プラズマトーチ炉など周知の型式のもの
を使用できる。ここでは直流プラズマジェット類を用い
、直流電源７に接続したプラズマ発生部８にプラズマ発
生用Ｎ２ガスを導入し、窒素プラズマ２を発生させた。As the nitrogen plasma generator, well-known types such as a DC plasma jet furnace and a high frequency induction plasma torch furnace can be used. Here, N2 gas for plasma generation was introduced into a plasma generation section 8 connected to a DC power supply 7 using a DC plasma jet to generate nitrogen plasma 2.
ＴｉＮ微粉末６は、上記装置の排出部（図示せず）より
回収し、約６０μｍ粒度のものを得た。Ｎ２ガスの圧力
を増大させたところ約４０μｍ粒度のＴｉＮ微粉末が得
られた。The TiN fine powder 6 was recovered from the discharge part (not shown) of the above-mentioned apparatus, and obtained had a particle size of about 60 μm. When the pressure of N2 gas was increased, fine TiN powder with a particle size of about 40 μm was obtained.
叉胤旌ｌ
第２図に示すように、原料Ｔｉ棒３を高速回転させ、一
方、実施例１・に用いた装置と同様の直流プラズマジェ
ット類を用いて窒素プラズマ２を発生させ、これを高速
回転の原料Ｔｉ捧３の上端面に照射した。飛散したＴｉ
Ｎ微粉末６を上記装置の排出部（図示せず）より回収し
、約６０μ−粒度のものを得た。なお、原料Ｔｉ捧３に
代えてディスク状の原料Ｔｉ材を使用できる。As shown in FIG. 2, the raw material Ti rod 3 is rotated at high speed, while nitrogen plasma 2 is generated using a direct current plasma jet similar to the device used in Example 1. Irradiation was applied to the upper end surface of the raw material Ti plate 3 rotating at high speed. Scattered Ti
N fine powder 6 was recovered from the discharge section (not shown) of the above-mentioned apparatus to obtain a powder having a particle size of about 60 .mu.m. Note that a disc-shaped raw Ti material can be used instead of the raw Ti material 3.
（発明の効果）
以上説明したように、本発明では、窒素プラズマにより
Ｔｉを溶解すると同時に窒素と瞬時に反応させて溶融Ｔ
ｉＮを適宜流体で噴霧し、或いは遠心力で飛散してＴｉ
Ｎ粉末を製造するため１種々の性状のＴｉＮ粉末を任意
粒度で、かつ高速多量に生産することができ、低コスト
のＴｉＮ粉末を金色顔料又は塗料、超硬工具用などの用
途に応じて提供することができる。また、従来のように
多数工程を要せず、単一工程で、しかも簡単な装置でＴ
ｉＮ粉末を製造することができる。更には、チタンスク
ラップなどの廃材を所望形状に成形したものを原料Ｔｉ
材として利用できるので、省資源の効果もある。(Effects of the Invention) As explained above, in the present invention, Ti is melted by nitrogen plasma and simultaneously reacted with nitrogen to melt the molten T.
Ti is dispersed by spraying iN with an appropriate fluid or by centrifugal force.
To produce N powder, we can produce TiN powder of various properties in arbitrary particle sizes and in large quantities at high speed, and provide low-cost TiN powder for various uses such as gold pigments, paints, and cemented carbide tools. can do. In addition, T
iN powder can be produced. Furthermore, waste materials such as titanium scraps are molded into the desired shape and used as raw material Ti.
Since it can be used as wood, it also has the effect of conserving resources.
第１図及び第２図は各々本発明の実施例に係るＴｉＮ粉
末製造の状況を示す概略説明図である。
１・・・プラズマトーチ、２・・・プラズマ。
３・・・原料Ｔｉ棒、 ４・・・ＴｉＮ溶滴。
５・・・流体噴震用ノズル、６・・・ＴｉＮ微粉末、７
・・・直流電源、 ８・・・プラズマ発生部。
第 １
几（１゜
責５
第２図
訊
ゴ
唄
し７FIG. 1 and FIG. 2 are schematic explanatory diagrams showing the state of TiN powder production according to an embodiment of the present invention. 1... Plasma torch, 2... Plasma. 3... Raw material Ti rod, 4... TiN droplets. 5... Fluid jet nozzle, 6... TiN fine powder, 7
...DC power supply, 8...Plasma generation section. 1st 几(1゜几5 2nd picture kango song 7
Claims (1)
を溶解すると同時に窒素と反応させ、得られた溶融Ｔｉ
Ｎを適宜流体で噴霧してＴｉＮ粉末を得ることを特徴と
するＴｉＮ粉末の製造方法。 ２ 高速回転するＴｉ材に窒素プラズマを照射すること
により、Ｔｉを溶解すると同時に窒素と反応させ、得ら
れた溶融ＴｉＮを該回転Ｔｉ材の遠心力で飛散せしめて
ＴｉＮ粉末を得ることを特徴とするＴｉＮ粉末の製造方
法。[Claims] 1. By irradiating the Ti material with nitrogen plasma, Ti
The resulting molten Ti
A method for producing TiN powder, which comprises obtaining TiN powder by spraying N with an appropriate fluid. 2. By irradiating nitrogen plasma onto a Ti material rotating at high speed, Ti is melted and simultaneously reacted with nitrogen, and the resulting molten TiN is scattered by the centrifugal force of the rotating Ti material to obtain TiN powder. A method for producing TiN powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25282484A JPS61132504A (en) | 1984-12-01 | 1984-12-01 | Production of tin powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25282484A JPS61132504A (en) | 1984-12-01 | 1984-12-01 | Production of tin powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61132504A true JPS61132504A (en) | 1986-06-20 |
Family
ID=17242717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25282484A Pending JPS61132504A (en) | 1984-12-01 | 1984-12-01 | Production of tin powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61132504A (en) |
-
1984
- 1984-12-01 JP JP25282484A patent/JPS61132504A/en active Pending
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