JPH0432501A - Heat resistant, wear resistant alloy powder - Google Patents
Heat resistant, wear resistant alloy powderInfo
- Publication number
- JPH0432501A JPH0432501A JP2140384A JP14038490A JPH0432501A JP H0432501 A JPH0432501 A JP H0432501A JP 2140384 A JP2140384 A JP 2140384A JP 14038490 A JP14038490 A JP 14038490A JP H0432501 A JPH0432501 A JP H0432501A
- Authority
- JP
- Japan
- Prior art keywords
- resistant
- nozzle
- alloy powder
- molten metal
- wear
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 31
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 30
- 239000000956 alloy Substances 0.000 title claims abstract description 30
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 abstract description 18
- 229910052751 metal Inorganic materials 0.000 abstract description 18
- 239000002245 particle Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010298 pulverizing process Methods 0.000 abstract description 3
- 229910020630 Co Ni Inorganic materials 0.000 abstract 1
- 229910002440 Co–Ni Inorganic materials 0.000 abstract 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 1
- 229910017709 Ni Co Inorganic materials 0.000 abstract 1
- 229910003267 Ni-Co Inorganic materials 0.000 abstract 1
- 229910003262 Ni‐Co Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000010936 titanium Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009689 gas atomisation Methods 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、耐熱耐摩耗合金粉末に関するもので、詳細に
は耐熱耐摩耗合金粉末の製造性を改善するために組成に
改善を加えたものに関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a heat-resistant and wear-resistant alloy powder, and more specifically to a heat-resistant and wear-resistant alloy powder whose composition has been improved in order to improve the manufacturability of the powder. Regarding.
（従来の技術）
合金粉末を造るためのガス噴霧法または水噴霧法は、溶
解した金属をクンデイツシュなどの容器の下部にある小
孔（溶湯ノズル）より流出させ、この溶湯流に対して高
圧ガスまたは水を吹き例けて溶湯を粉化し金属粉を造る
方法である。(Prior art) In the gas atomization method or water atomization method for producing alloy powder, molten metal is flowed out through a small hole (molten metal nozzle) at the bottom of a container such as a kundishu, and a high-pressure gas is applied to the molten metal flow. Alternatively, the molten metal is pulverized by blowing water to create metal powder.
（発明が解決しようとする課題）
しかし、従来の噴霧法によると溶湯を高圧水などで飛散
し粉化させるための噴震装置は、特に耐熱耐摩耗合金溶
湯の場合、析出物の付着等によりノズル開口面積が小さ
（なり溶湯ノズルが閉塞しやすいという問題がある。こ
の問題は、溶湯の流量の不安定により噴震粉末の粒径が
バラツキ、粉末の粒径制御が困難になるだけでなく、ノ
ズルが閉塞されると設備を停止しなければならないので
合金粉末製造の生産性を著しく低下させる。(Problem to be Solved by the Invention) However, according to the conventional spraying method, the jetting device for scattering and pulverizing molten metal with high-pressure water, etc., is difficult to use, especially in the case of molten metal of heat-resistant and wear-resistant alloys, due to the adhesion of precipitates, etc. The problem is that the nozzle opening area is small (so the molten metal nozzle is easily clogged).This problem not only causes the particle size of the ejected powder to vary due to the instability of the flow rate of the molten metal, making it difficult to control the particle size of the powder. If the nozzle is blocked, the equipment must be stopped, which significantly reduces the productivity of producing alloy powder.
ノズル閉塞の原因を調査してみると、ノズル閉塞にはＴ
ｉ酸化物等の析出が大きく影響していることが判明した
。例えば、第２図に示すように、溶湯ノズル１の小孔１
ａの周りに析出物２が付着しブリッジを形成することに
より、金属流量が低下し、ノズル閉塞を生じる。ノズル
閉塞にはＴ１酸化物等の析出が大きく影響していること
が知られている。When we investigated the cause of nozzle blockage, we found that nozzle blockage was caused by T.
It was found that the precipitation of i-oxides and the like had a large influence. For example, as shown in FIG. 2, the small hole 1 of the molten metal nozzle 1
When the precipitate 2 adheres around a and forms a bridge, the metal flow rate decreases and nozzle blockage occurs. It is known that precipitation of T1 oxide and the like has a large effect on nozzle clogging.
本発明はこのような問題点を解決するためになされたも
ので、耐熱耐摩耗合金粉末の製造時に噴震ノズル閉塞を
防止して安定して製造可能であってかつ均質な粒径の耐
熱耐摩耗合金粉末を得ることを目的とする。The present invention has been made to solve these problems, and is capable of stably producing heat-resistant and wear-resistant alloy powder that prevents clogging of jet nozzles during the production of heat-resistant and wear-resistant alloy powder, and that has a uniform particle size. The purpose is to obtain wear alloy powder.
（課題を解決するための手段）
本発明の第１発明の耐熱耐摩耗合金粉末は、Ｆｅ、Ｎｉ
またはＣＯ基合金粉末において、ＴｉおよびＡｊ２を添
加したことを特徴とする。(Means for Solving the Problems) The heat-resistant and wear-resistant alloy powder of the first invention of the present invention includes Fe, Ni,
Alternatively, it is characterized in that Ti and Aj2 are added to the CO-based alloy powder.
第２発明の耐熱耐摩耗合金粉末は、前記Ｔｉおよび前記
Ａｆｌがｗｔ％で、
Ｔｉ：０．０５〜６．０、
Ａβ二０．１〜１０．０、
かつ、Ａｊ２／Ｔｉ比がｗｔ％比で、
Ａｌ／Ｔ ｉ≧０．８
であることを特徴とする。In the heat-resistant and wear-resistant alloy powder of the second invention, the Ti and the Afl are wt%, Ti: 0.05 to 6.0, Aβ2 is 0.1 to 10.0, and the Aj2/Ti ratio is wt%. It is characterized by a ratio of Al/T i≧0.8.
Ｔｉを添加するのは、析出効果等により耐熱耐摩耗性を
向上する効果があり、この効果が認められるためには少
なくともＴｉが０．０５ｗｔ％以上必要であり、６．０
ｗｔ％を越えるとＴｉＮの析出量が多くなりノズル閉塞
を生じやすいため、前記範囲とした。Adding Ti has the effect of improving heat and wear resistance due to precipitation effects, etc., and for this effect to be recognized, at least 0.05 wt% or more of Ti is required, and 6.0 wt% or more of Ti is required.
If it exceeds wt%, the amount of TiN precipitated increases and nozzle clogging is likely to occur, so the above range was set.
またＡｌをＯ，１ｗｔ％以上加えるのは、ＡＩ２添加に
よりＡβ２０３等のアルミ酸化物の析出が発生し、Ａｊ
２添加量が増えるに従いアルミ酸化物の析出量が増大し
、その分子ｉＯ□等のチタン酸化物の析出量が低減され
やすいため、これによりノズル閉塞防止の効果が高めら
れるからである。Also, adding more than 1 wt% of Al to O will cause the precipitation of aluminum oxides such as Aβ203 due to the addition of AI2.
This is because as the amount of aluminum oxide added increases, the amount of aluminum oxide precipitated increases, and the amount of titanium oxides such as iO□ molecules precipitated tends to be reduced, thereby increasing the effect of preventing nozzle clogging.
Ａｌ添加量を１０．０ｗｔ％以下としたのはこれより多
量にすると八ρによる合金への特性変化を与えまたＡｌ
２０３の析出量が過度に増えるからである。The reason why the amount of Al added is 10.0 wt% or less is that if the amount is larger than this, the properties of the alloy will change due to 8ρ, and the Al
This is because the amount of precipitation of 203 increases excessively.
さらにＡ Ｒ／ Ｔ ｉのｗｔ比を０．８以上としたの
は、Ａβ／ Ｔ ｉ比を大きくすることにより介在物の
組成変化をはかりノズル閉塞性を防止することができる
ためである。Furthermore, the reason why the wt ratio of A R/Ti is set to 0.8 or more is that by increasing the Aβ/Ti ratio, it is possible to measure changes in the composition of inclusions and prevent nozzle clogging.
（発明の効果）
本発明の耐熱耐摩耗合金粉末によれば、この合金粉末を
噴震法により製造する時、ノズル閉塞を起こすことなく
安定した流量でノズルから噴震されるので、長時間にわ
たり噴震装置の設備を連続稼動運転することができ、生
産性が向上する。(Effects of the Invention) According to the heat-resistant and wear-resistant alloy powder of the present invention, when this alloy powder is manufactured by the jetting method, it can be jetted from the nozzle at a stable flow rate without causing nozzle clogging, so it can last for a long time. The equipment of the seismic device can be operated continuously, improving productivity.
従来の耐熱耐摩耗合金粉末によると、ノズル閉塞初期時
に、噴震粉が細粒になり、噴震粉の粒径にバラツキが生
じるが、本発明の耐熱耐摩耗合金粉末によると、ノズル
閉塞がなくなるので流量が安定し粉末の粒径が均一とな
り粒径制御が行ないやすくなる。According to the conventional heat-resistant and wear-resistant alloy powder, the ejected powder becomes fine particles at the initial stage of nozzle clogging, and the particle size of the ejected powder varies, but with the heat-resistant and wear-resistant alloy powder of the present invention, nozzle clogging occurs. This makes the flow rate stable and the particle size of the powder uniform, making it easier to control the particle size.
（実施例） 以下、本発明の実施例について述べる。(Example) Examples of the present invention will be described below.
実施例１はＦｅ基合金、実施例２および実施例３はＦｅ
−Ｎｉ−Ｃｏ系超合金、実施例４はＮｉ基超超合金実施
例５はＣｏ基超超合金それぞれ示す。実施例１〜実施例
５の組成は第１表に示すとおりである。Example 1 is an Fe-based alloy, and Examples 2 and 3 are Fe-based alloys.
Example 4 shows a Ni-based superalloy, and Example 5 shows a Co-based superalloy. The compositions of Examples 1 to 5 are shown in Table 1.
（以下、余白。）
前記実施例１〜実施例５においては、溶湯から噴震法に
より噴霧するとき、ノズル閉塞を起こすことなく正常に
均一な粒径をもつ噴震粉を製造することができた。これ
により諸噴霧条件を変化させることにより粉末粒径の均
一な合金粉末を得ることができる。またノズル閉塞が起
こりにくいことから、生産効率が極めて高い。(Hereinafter, blank space.) In Examples 1 to 5, when spraying from molten metal by the spray method, spray powder with a uniform particle size could be normally produced without causing nozzle clogging. Ta. As a result, alloy powder with uniform powder particle size can be obtained by changing various spray conditions. In addition, since nozzle clogging does not easily occur, production efficiency is extremely high.
前記実施例１〜実施例５のＴｉおよびＡβの合金中に含
まれる含有量を測定したところ、第１図に示すような範
囲内になることが判明した。第１図に示す領域は数式で
表すと次式で表されるような領域となる。When the contents of Ti and Aβ contained in the alloys of Examples 1 to 5 were measured, it was found that the contents were within the range shown in FIG. When expressed numerically, the area shown in FIG. 1 becomes an area as expressed by the following equation.
これに対し、比較例１では溶湯の噴震開始後約５分でノ
ズル閉塞を生じ、比較例２では噴霧開始後約２分でノズ
ル閉塞を生じた。また比較例３では噴霧開始後約３分で
ノズル閉塞を生じ、比較例４では噴霧開始後約６分でノ
ズル閉塞を生じた。On the other hand, in Comparative Example 1, the nozzle was clogged approximately 5 minutes after the start of spouting of the molten metal, and in Comparative Example 2, the nozzle was clogged approximately 2 minutes after the start of spraying. Further, in Comparative Example 3, nozzle blockage occurred approximately 3 minutes after the start of spraying, and in Comparative Example 4, nozzle blockage occurred approximately 6 minutes after the start of spraying.
なお、本発明は、前述した実施例に限らず、その他の合
金粉末に適用できることはもちろんである。It should be noted that the present invention is not limited to the above-mentioned embodiments, but can of course be applied to other alloy powders.
第１図は本発明のＴｉとＡＩ２の範囲を説明するための
説明図、第２図は溶湯ノズルを説明するための説明図で
ある。FIG. 1 is an explanatory diagram for explaining the range of Ti and AI2 of the present invention, and FIG. 2 is an explanatory diagram for explaining the molten metal nozzle.
Claims (2)
およびＡｌを添加したことを特徴とする耐熱耐摩耗合金
粉末。(1) In Fe, Ni or Co-based alloy powder, Ti
and a heat-resistant and wear-resistant alloy powder characterized by adding Al.
金粉末。(2) The Ti and Al are wt%, Ti: 0.05 to 6.0, Al: 0.1 to 10.0, and the Al/Ti ratio is wt%, Al/Ti≧0.8 The heat-resistant and wear-resistant alloy powder according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2140384A JPH0432501A (en) | 1990-05-30 | 1990-05-30 | Heat resistant, wear resistant alloy powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2140384A JPH0432501A (en) | 1990-05-30 | 1990-05-30 | Heat resistant, wear resistant alloy powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0432501A true JPH0432501A (en) | 1992-02-04 |
Family
ID=15267562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2140384A Pending JPH0432501A (en) | 1990-05-30 | 1990-05-30 | Heat resistant, wear resistant alloy powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432501A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019507247A (en) * | 2016-01-08 | 2019-03-14 | シーメンス アクティエンゲゼルシャフト | Additive manufacturing methods or gamma, gamma'-cobalt based alloys for soldering, welding, powders and parts |
-
1990
- 1990-05-30 JP JP2140384A patent/JPH0432501A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019507247A (en) * | 2016-01-08 | 2019-03-14 | シーメンス アクティエンゲゼルシャフト | Additive manufacturing methods or gamma, gamma'-cobalt based alloys for soldering, welding, powders and parts |
| US11180830B2 (en) | 2016-01-08 | 2021-11-23 | Siemens Energy Global GmbH & Co. KG | γ, γ′ cobalt based alloys for additive manufacturing methods or soldering, welding, powder and component |
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