JPS6233739A - Manufacture of nitrided sintered alloy - Google Patents
Manufacture of nitrided sintered alloyInfo
- Publication number
- JPS6233739A JPS6233739A JP60170813A JP17081385A JPS6233739A JP S6233739 A JPS6233739 A JP S6233739A JP 60170813 A JP60170813 A JP 60170813A JP 17081385 A JP17081385 A JP 17081385A JP S6233739 A JPS6233739 A JP S6233739A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- fine powder
- layered
- powder
- nitrided
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 67
- 239000000956 alloy Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000843 powder Substances 0.000 claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- -1 nitride compound Chemical class 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910017464 nitrogen compound Inorganic materials 0.000 abstract description 6
- 150000002830 nitrogen compounds Chemical class 0.000 abstract description 6
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 150000004767 nitrides Chemical class 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明はマイクロパンチ等のマイクロエ貝やドツトワイ
ヤー等に使用される窒化焼結合金の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for manufacturing a nitrided sintered alloy used for micro punches, dot wires, etc.
「従来の技術」
一般にドラ１−ワイヤーやマイクロドリル等は抗折力、
引張強度、圧縮強度が大きく、ロー付は性が良く、かつ
耐摩耗性に優れたしのが要求されている。このため、従
来、超硬ヤ）パウダーハイス等の材質を用いて形成され
ているが、これでは十分な性能が得られないという欠点
があった。"Conventional technology" In general, drill wires, micro drills, etc. have transverse rupture strength,
There is a demand for steel that has high tensile strength and compressive strength, good brazing properties, and excellent wear resistance. For this reason, they have conventionally been formed using materials such as cemented carbide and powdered high speed steel, but this has the disadvantage that sufficient performance cannot be obtained.
「本発明の目的１
本発明は以−［のような従来の欠点に鑑み、従来の超硬
やパウダーハイス等よりｂｓれた抗折力、引張強度、圧
縮強度が得られるとともに、ロー付は性も良く、かつ耐
摩耗性に優れたマイクロ工具やドラ１−ワイヤー等に使
用することのできる窒化焼結合金の製造方法を１′？る
にある。``Object of the present invention 1 In view of the conventional drawbacks as described below, the present invention provides a method that can obtain transverse rupture strength, tensile strength, and compressive strength that are higher than those of conventional carbide, powder high-speed steel, etc., and that does not require brazing. The present invention provides a method for producing a nitrided sintered alloy that has good properties and excellent wear resistance and can be used for micro tools, driver wires, etc.
［本発明の目的を）ヱ成りるための手段」本発明はカー
ボンを除く複数種の金属元素を溶解した合金を微粉末化
する合金の微粉未形成工程と、この微粉未形成工程で形
成した微粉末合金に所定間の該微粉末合金Ｊ：りも微粉
末状の窒化化合物を混合してボールミルで混練し層状合
金の微粉末を形成する微粉末層状合金形成工程と、この
微粉末層状合金形成工程で形成された微粉末層状合金を
焼結して窒化化合物を含む焼結合金を形成する焼結工程
とを含むことをを特徴としている。[Means for achieving the object of the present invention] The present invention consists of an alloy non-fine powder forming step in which an alloy in which multiple metal elements other than carbon are dissolved is pulverized, and an alloy formed by this non-fine powder forming step. A step of forming a fine powder layered alloy in which a nitride compound in the form of a fine powder is mixed with the fine powder alloy for a predetermined period of time and kneaded in a ball mill to form a fine powder of a layered alloy, and this fine powder layered alloy. The method is characterized in that it includes a sintering step of sintering the fine powder layered alloy formed in the forming step to form a sintered alloy containing a nitride compound.
「本発明の実施例」
以下、図面に示す実施例により、本発明の詳細な説明す
る。"Embodiments of the present invention" The present invention will be described in detail below with reference to embodiments shown in the drawings.
第１図および第２図の実施例において、１はカーボンを
除く複数種の金属元素で形成した合金２を微粉末化する
合金の微粉未形成■稈で、この合金の微粉未形成工程１
は高周波溶解炉３で、複数種の金属元素、例−えばＣｒ
が４．０±０゛０５、ＭＯが±０，２５
±０．２５ 、 ±０，１５６．０
、Ｗが１０．０ 、Ｖか５．０±０，２５
Ｃｏが１０．０ 、残量が「ｅの市吊パーゼント
の溶解した溶製材料４を作り、この溶解した溶製材料４
をガスあるいは水５を用いたアトマイズ装置６によって
微粉末合金７を形成するらのである。In the examples shown in FIGS. 1 and 2, 1 is an unpulverized culm of an alloy for which an alloy 2 made of multiple types of metal elements other than carbon is pulverized;
is a high frequency melting furnace 3, in which multiple types of metal elements, for example Cr
is 4.0±0゛05, MO is ±0.25
±0.25, ±0,156.0
, W is 10.0, V is 5.0 ± 0,25 Co is 10.0, and the remaining amount is ``e''.
A fine powder alloy 7 is formed by an atomizing device 6 using gas or water 5.
８は前記微粉未形成工程１で形成した微粉末合金７に所
定間の微粉末合金７より微粉末状のカーボンナイトライ
ドＣ３Ｎ４等の窒素化合物９を２ｗｔ％を超えない串を
ボールミル１０を用いて混練し微粉末層状合金１１を形
成する微粉末層状合金形成工程で、この微粉末層状合金
形成工程８で使用するボールミル１０は窒素ガス雰囲気
中で行ない、第２図に示すように微粉末合金７の略中央
部に窒素化合物９が入込んだ微粉末層状合金１１を形成
する。8 is a ball mill 10 in which a fine powder nitrogen compound 9 such as carbon nitride C3N4 is added to the fine powder alloy 7 formed in the above-mentioned fine powder non-forming step 1 in a predetermined amount using a ball mill 10. In the fine powder layered alloy forming step of kneading and forming the fine powder layered alloy 11, the ball mill 10 used in the fine powder layered alloy forming step 8 is operated in a nitrogen gas atmosphere, and the fine powder layered alloy 7 is kneaded as shown in FIG. A fine powder layered alloy 11 containing a nitrogen compound 9 is formed approximately in the center of the layered alloy.
１２は前記微粉末層状合金形成工程８で形成された微粉
末層状合金１１を焼結して窒化焼結合金１３を形成する
焼結工程で、この焼結工程１２は、微粉末層状合金１１
をカプセル１４に入れ、真空脱気してカブピル封入する
カプセル封入工程１５と、このカプセル封入工程１５で
カプセル１４に封入された微粉末層状合金１１を熱間等
方圧力装置（＋−１１Ｐ）１６を用いて１０００気圧以
上、１２２０℃〜１２４０℃で６０分以上加熱処理する
Ｉ−１Ｉ Ｐ処理工程１７とから構成されている。12 is a sintering step in which the fine powder layered alloy 11 formed in the fine powder layered alloy forming step 8 is sintered to form a nitrided sintered alloy 13;
is placed in a capsule 14, vacuum degassed, and encapsulated in Kabupil.The fine powder layered alloy 11 encapsulated in the capsule 14 in this encapsulation step 15 is placed in a hot isostatic pressure device (+-11P) 16. The I-1 IP treatment step 17 is a heat treatment at 1,220° C. to 1,240° C. for 60 minutes or more at a pressure of 1,000 atmospheres or more and a temperature of 1,220° C. to 1,240° C.
１８は前記焼結工程１２を経た窒化焼結合金１３を所定
の製品に加工する加エエ稈で、この加工工Ｖ１１８は前
記焼結工程１２を経たものを皮むきする皮むぎ工程１９
と、この皮むぎ工程１９を経たものを鍛造して母材を形
成する鍛造工程２０と、この鍛造工程２０で目的寸法の
為に形成した母材をスラブ、ビレットあるいはブルーム
等を製品母材に形成する製品母材形成工程２１と、この
製品母材形成工程２１を経たものをドツトワイヤーやマ
イクロ工具等を形成する場合に所定のバー材や線材に形
成する引抜き工程２２とから構成されている。18 is a processing machine that processes the nitrided sintered alloy 13 that has undergone the sintering process 12 into a predetermined product, and this processing machine V118 is a peeling process 19 that peels the product that has undergone the sintering process 12.
Then, there is a forging process 20 in which the material that has gone through this peeling process 19 is forged to form a base material, and the base material formed to the desired size in this forging process 20 is converted into a product base material such as a slab, billet, or bloom. It consists of a product base material forming step 21, and a drawing step 22, in which the product that has passed through the product base material forming step 21 is formed into a predetermined bar material or wire rod when forming dot wires, micro tools, etc. .
上記方法により製造された窒化焼結合金１３は、同一金
属成分で形成された従来の焼結合金と比べ耐摩耗性が非
常に優れ、抗折力、引張強度、圧縮強度が高く、耐摩耗
性に優れており、５ミリ丸×１５０１の試験片で真空度
１０−４の真空炉中で焼入れ温度１１８０℃Ｘ３分、１
２１０’Ｃｘ ３分で不活性ガスで急空冷、焼戻し５４
０℃×６０分を３回行ったが、待にＨｖ硬度で１２５０
を超えＨＲＣ硬度では４ポイント硬度が増し７４に達し
、今までの鉄基合金では不可能とされていた高硬度が得
られた。The nitrided sintered alloy 13 manufactured by the above method has extremely superior wear resistance compared to conventional sintered alloys made of the same metal components, and has high transverse rupture strength, high tensile strength, and compressive strength, and has high wear resistance. A test piece of 5mm round x 1501mm was quenched at 1180℃ for 3 minutes in a vacuum furnace with a degree of vacuum of 10-4.
210'Cx Rapid air cooling with inert gas for 3 minutes, tempering 54
I performed 0℃ x 60 minutes three times, but the Hv hardness was 1250.
The HRC hardness increased by 4 points to 74, achieving a high hardness that was previously thought to be impossible with iron-based alloys.
「本発明の効果」
以上の説明から明らかなように、本発明にあっては次に
列挙する効果がある。"Effects of the Present Invention" As is clear from the above description, the present invention has the following effects.
（１）カーボンを除く複数種の金属元素で形成した合金
を微粉末状にしたものに所定量の微粉末状の窒素化合物
を混合してボールミルで混練し微粉末の層状合金を形成
した後、焼結工程を行なって窒化焼結合金を形成してい
るので、従来と同じ成分の金属材を用いた焼結金属に比
較して、冷間仕上、伸線工程でも断面減少率は１５％以
上で刊（移し、生産性もよく仕上げ伸線後の面粗ざは従
来は０．６ｓ台だったが上記方法では０．３ｓ台であっ
た。窒素化合物中の硬化機能を製品たりではなく製造工
程中で６リダクシヨンの問題も発生しにクク寸べりつす
く、大きく発揮することができる。したがって、従来の
同一金属成分で形成した場合の焼結合金と比べ、抗折力
、引張強度、圧縮強度が高く、耐摩耗性に優れている。(1) A predetermined amount of a finely powdered nitrogen compound is mixed with a finely powdered alloy formed of multiple types of metal elements excluding carbon, and the mixture is kneaded in a ball mill to form a finely powdered layered alloy. Since the nitrided sintered alloy is formed through a sintering process, the cross-sectional area reduction rate is over 15% during cold finishing and wire drawing processes, compared to conventional sintered metals using metal materials with the same components. (transfer, productivity is good and the surface roughness after finishing wire drawing was in the 0.6s range conventionally, but with the above method it was in the 0.3s range.The hardening function in nitrogen compounds was used in manufacturing rather than products) The problem of 6-reduction does not occur during the process, and it can exhibit greater strength and strength than conventional sintered alloys made of the same metal components. High strength and excellent wear resistance.
（２）カーボンを除く合金は鉄を主体に形成されている
ので、ロー付は性も良好である。(2) Since the alloy excluding carbon is mainly made of iron, brazing properties are good.
２１：製品は相形成工程、２２：引扱き工程。21: Product undergoes phase formation process, 22: Handling process.
（３）カーボンを除く微粉末合金に所定ωの微粉末状の
窒素化合物を混合してボールミルで混練し微粉末層状合
金を形成１′れば良いので、比較的簡単に製ｊΔするこ
とができる。(3) All that is required is to mix a finely powdered nitrogen compound of a predetermined ω with a finely powdered alloy excluding carbon and knead it in a ball mill to form a finely powdered layered alloy 1′, so it is relatively easy to manufacture jΔ. .
（４）前記（１）によって、特殊な製造設備を必要とし
ないので、容易に製造することができる。(4) According to the above (1), no special manufacturing equipment is required, so manufacturing can be performed easily.
第１図は本発明の一実施例を示すＩ稈図、第２図は微粉
末層状合金の拡大断面図である。
１：合金の微粉未形成工程、
２：合金、 ３：高周波溶解炉、４：溶製材
料、 ５：ガスあるいは水、６：アトマイズ装胃
、 ７：微わ）未合金、８：微粉末層状合金形成工程、FIG. 1 is an I-culm diagram showing one embodiment of the present invention, and FIG. 2 is an enlarged sectional view of a fine powder layered alloy. 1: Alloy fine powder non-formation process, 2: Alloy, 3: High frequency melting furnace, 4: Molten material, 5: Gas or water, 6: Atomized gastric filling, 7: Slight) unalloyed, 8: Fine powder layered alloy forming process,
Claims (1)
微粉末化する合金の微粉未形成工程と、この微粉未形成
工程で形成した微粉末合金に所定間の該微粉末合金より
も微粉末状の窒化化合物を混合してボールミルで混練し
層状合金の微粉末を形成する微粉末層状合金形成工程と
、この微粉末層状合金形成工程で形成された微粉末層状
合金を焼結して窒化化合物を含む焼結合金を形成する焼
結工程とを含むことを特徴とする窒化焼結合金の製造方
法。 ２）合金はＣｒが４．０、Ｍｏが６〜１０、Ｗが６〜１
２、Ｖが３．５〜５、Ｃｏが５〜１２、残量がＦｅの重
量パーセントを含む溶製材料として作られたものである
ことを特徴とする特許請求の範囲第１項記載の窒化焼結
合金の製造方法。 ３）微粉未形成工程は溶製材料として作られた合金をガ
スあるいは水を用いたアトマイズ装置を用いて微粉末に
することを特徴とする特許請求の範囲第１項または第２
項記載の窒化焼結合金の製造方法。 ４）層状合金粉未形成工程はＮ＿２ガス雰囲気のボール
ミルで行なうことを特徴とする特許請求の範囲第１項な
いし第３項いずれかに記載の窒化焼結合金の製造方法。 ５）焼結工程は層状合金をカプセルに入れ、真空脱気す
るカプセル封入工程と、このカプセル封入工程を経たも
のを熱間等方圧力装置（ＨＩＰ）を用いて炉内を真空脱
気後不活性ガスを充填して１０００気圧以上、１２２０
℃〜１２４０℃で６０分位加熱処理するＨＩＰ処理工程
とからなることを特徴とする特許請求の範囲第１項ない
し第４項いずれかに記載の窒化焼結合金の製造方法。[Claims] 1) An alloy non-fine powder formation step in which an alloy in which multiple types of metal elements other than carbon are dissolved is pulverized, and the fine powder alloy formed in this non-fine powder formation step is subjected to the micronization process for a predetermined period of time. A fine powder layered alloy formation process in which a nitride compound in a finer powder form than the powder alloy is mixed and kneaded in a ball mill to form a fine powder of a layered alloy, and a fine powder layered alloy formed in this fine powder layered alloy formation process. 1. A method for producing a nitrided sintered alloy, the method comprising: sintering to form a sintered alloy containing a nitrided compound. 2) The alloy has 4.0 Cr, 6-10 Mo, and 6-1 W
2. The nitriding material according to claim 1, wherein the nitriding material is produced as a melted material containing 3.5 to 5 V, 5 to 12 Co, and a balance of Fe in the weight percent. Method for producing sintered alloy. 3) The non-fine powder forming step is characterized in that the alloy made as a melted material is made into a fine powder using an atomizing device using gas or water.
A method for producing a nitrided sintered alloy as described in . 4) The method for producing a nitrided sintered alloy according to any one of claims 1 to 3, wherein the step of not forming layered alloy powder is carried out in a ball mill in an N_2 gas atmosphere. 5) The sintering process includes an encapsulation process in which the layered alloy is placed in a capsule and vacuum degassed, and the material that has passed through this encapsulation process is vacuum degassed in a furnace using a hot isostatic pressure device (HIP) and then evacuated. More than 1000 atmospheres when filled with active gas, 1220
5. The method for producing a nitrided sintered alloy according to any one of claims 1 to 4, which comprises a HIP treatment step of heat-treating at a temperature of 1240°C to 1240°C for about 60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60170813A JPS6233739A (en) | 1985-08-02 | 1985-08-02 | Manufacture of nitrided sintered alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60170813A JPS6233739A (en) | 1985-08-02 | 1985-08-02 | Manufacture of nitrided sintered alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6233739A true JPS6233739A (en) | 1987-02-13 |
Family
ID=15911809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60170813A Pending JPS6233739A (en) | 1985-08-02 | 1985-08-02 | Manufacture of nitrided sintered alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6233739A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0539501A (en) * | 1991-05-27 | 1993-02-19 | Daido Steel Co Ltd | Hard particle dispersed alloy powder and production thereof |
-
1985
- 1985-08-02 JP JP60170813A patent/JPS6233739A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0539501A (en) * | 1991-05-27 | 1993-02-19 | Daido Steel Co Ltd | Hard particle dispersed alloy powder and production thereof |
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