JPH01177357A - Method for hardening surface of metal - Google Patents
Method for hardening surface of metalInfo
- Publication number
- JPH01177357A JPH01177357A JP27488A JP27488A JPH01177357A JP H01177357 A JPH01177357 A JP H01177357A JP 27488 A JP27488 A JP 27488A JP 27488 A JP27488 A JP 27488A JP H01177357 A JPH01177357 A JP H01177357A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- hardness
- nitrogen
- heating
- heated
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 150000004767 nitrides Chemical class 0.000 claims abstract description 8
- 238000007747 plating Methods 0.000 claims abstract description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 5
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 238000002848 electrochemical method Methods 0.000 claims description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 239000010955 niobium Substances 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 2
- 230000009466 transformation Effects 0.000 abstract description 5
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 2
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 2
- 239000010962 carbon steel Substances 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
- 238000005121 nitriding Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Lead Frames For Integrated Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は硬さを必要とするボイツやタービン及びその周
辺機器あるいは機械構造物の摺動部の表面を硬化するに
適する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method suitable for hardening the surfaces of sliding parts of boitz, turbines, their peripheral equipment, or mechanical structures that require hardness.
金属の表面にクロム、チタン、ジルコニウム、バナジウ
ム、ニオブ、タンタル、マンガン、モリブデン及びタン
グステンの窒化物を形成させると、耐摩耗性、耐食性、
耐焼ｉつき性がよく彦ることは周知のとおりである。現
在これらの窒化物を形成させる手法としては、ＴＤプロ
セス、ＣＶＤ％ＰＶＤがある。Forming nitrides of chromium, titanium, zirconium, vanadium, niobium, tantalum, manganese, molybdenum, and tungsten on the surface of metal improves wear resistance, corrosion resistance,
It is well known that it has good seizure resistance. Currently, methods for forming these nitrides include TD process and CVD%PVD.
これら従来技術の欠点としては、
ＴＤプロセスにおいては処理温度が変態点近傍の９００
℃前後迄上昇するので歪みが問題となる。従ってわずか
な歪みを問題とするところには使用できない。The disadvantage of these conventional techniques is that in the TD process, the processing temperature is 900℃, which is near the transformation point.
Since the temperature rises to around ℃, distortion becomes a problem. Therefore, it cannot be used where slight distortion is a problem.
またＣＶＤ、ＰＶＤはＡＩ変態点以下の５００℃前後で
処理されるので歪みは問題とならないが、その膜厚は２
〜３μｍ前後と非常に薄いのが欠点である。Also, since CVD and PVD are processed at around 500°C below the AI transformation point, distortion is not a problem, but the film thickness is 2.
The drawback is that it is extremely thin, around ~3 μm.
本発明は上記技術水準に鑑み、金属の表面の硬度を従来
得られる硬さ以上にすることができる金属の表面硬化方
法を提供しようとするものである。In view of the above-mentioned state of the art, the present invention seeks to provide a method for hardening the surface of metal, which can increase the hardness of the surface of metal to a level higher than that conventionally available.
本発明は、金属の表面に窒素を拡散させ、クロム、チタ
ン、ジルコニウム、バナジウム、ニオブ、タンタル、マ
ンガン、モリブデン及ヒタングステンよりなる群のうち
の金属の１種以上をａ気化学的手法でメッキした後、高
温で加熱して上記金属の表面にＨｖ９００〜Ｈｖ２４５
０を有する窒化物層を形成させることを特徴とする金属
の表面硬化方法である。The present invention diffuses nitrogen onto the surface of a metal, and plating one or more metals from the group consisting of chromium, titanium, zirconium, vanadium, niobium, tantalum, manganese, molybdenum, and tungsten using a vapor chemical method. After that, the surface of the metal is heated to a high temperature of Hv900 to Hv245.
This is a metal surface hardening method characterized by forming a nitride layer having 0.
本発明は金属の表面に窒素を拡散させた後、上記金属元
素の１種以上を電気化学的手法でメッキし、その後高温
で加熱してもよいし、先ず上記金属元素を電気化学的手
法でメッキした後、窒素を拡散させ、その後高温で加熱
してもよい。In the present invention, after nitrogen is diffused onto the surface of the metal, one or more of the above-mentioned metal elements may be plated by an electrochemical method, and then heated at a high temperature, or the above-mentioned metal elements may be first plated by an electrochemical method. After plating, nitrogen may be diffused and then heated at high temperatures.
なお高温加熱で歪が問題となる場合はＡ１変態点以下の
７００℃前後で加熱するのがよい。If distortion becomes a problem with high-temperature heating, it is preferable to heat at around 700°C, which is below the A1 transformation point.
本発明で対象となる金属材料は、−収約に鉄系材料で、
例えば炭素鋼、低合金鋼、フェライト系高クロム鋼、オ
ーステナイト系ステンレス鋼などがあげられる。The metal materials targeted by the present invention are iron-based materials,
Examples include carbon steel, low alloy steel, ferritic high chromium steel, and austenitic stainless steel.
本発明によ多金属材料の表面にＨｖ９００以上の上記金
属元素の窒化物層が形成される。According to the present invention, a nitride layer of the above metal element having a Hv of 900 or more is formed on the surface of a multimetallic material.
以下、本発明の一実施例を第１図を参照しながら説明す
る。第１図（ａ）に示すようＩｃ、 ５ＴＢＡ２４ （
２ａ ％ Ｏｒ−１％ Ｍ ｏ ）のボイフチューブ（
５α８φＸ＆０ｔＸ２０００ｔ）１を、２０〜２５％分
解させたアンモニアガス雰囲９Ｃ２中で５５０ＣＸ４０
時間加熱した。これによりチューブの表面には、第１図
（ｂ）に示す４００μｍの厚さで窒化層３が形成された
。An embodiment of the present invention will be described below with reference to FIG. As shown in Figure 1(a), Ic, 5TBA24 (
Boif tube (2a% Or-1% Mo) (
5α8φX & 0t
heated for an hour. As a result, a nitrided layer 3 having a thickness of 400 μm as shown in FIG. 1(b) was formed on the surface of the tube.
さらに、これをＪ工５ａｓｓ１５（工業用クロムメッキ
）による手法にて第１図（ｃ） Ｋ示すごとくクロムメ
ッキ被膜４を約１００μｍメッキし、その後７００℃で
１時間加熱した。Furthermore, this was plated with a chromium plating film 4 of about 100 μm as shown in FIG. 1(c) K using a method using J Engineering 5ass15 (industrial chrome plating), and then heated at 700° C. for 1 hour.
これによシ第４図（ωに示すように形成された層の中に
は、クロムの窒化物５が１００μｍの厚さで存在し、そ
の硬さはＨｖ９００前後と非常に硬いものであシ、また
との熱処理による歪の発生もほとんどなかった。As a result, in the layer formed as shown in Figure 4 (ω), chromium nitride 5 exists with a thickness of 100 μm, and its hardness is around Hv900, which is very hard. There was almost no distortion caused by the heat treatment.
なお、電気メッキする材料としては、クロふの他に、チ
タン、ジルコニウム、バナジウム、ニオブ、タンタル、
マンガン、モリブデン、タングステンの何れでもよく、
さらにこれらの合金あるいは鉄との合金でもよい。In addition to black, the materials to be electroplated include titanium, zirconium, vanadium, niobium, tantalum,
Manganese, molybdenum, or tungsten may be used.
Furthermore, alloys of these or alloys with iron may be used.
以下に窒化後、単独で電気メッキし、７００℃で１時間
加熱した際の硬度を示すが、加熱温度としては歪みの発
生を問題としなければ、最高１１００℃前後迄加熱して
もよい。これにより膜厚はさらに厚くなる。The hardness when electroplated alone after nitriding and heated at 700° C. for 1 hour is shown below, but the heating temperature may be up to about 1100° C. as long as the generation of distortion is not a problem. This further increases the film thickness.
また熱処理手順としては、メッキ後窒化処理をしてもよ
く、窒化処理としては、ガス窒化、塩浴窒化のみならず
、窒素が金属中に拡散していく方法であれば何れでもよ
い。Further, as a heat treatment procedure, nitriding treatment may be performed after plating, and the nitriding treatment may be not only gas nitriding and salt bath nitriding, but also any method in which nitrogen diffuses into the metal.
〔発明の効果コ
本発明によ多金属の表面ｉｃ、Ｈｖ９００〜Ｈｖ２４５
０を有する上記元素の窒化物が形成され、また７００℃
以下の変態点よりも下の温度で加熱することによシ歪み
もほとんど発生しなかった。[Effects of the invention] According to the present invention, the multimetal surface IC, Hv900 to Hv245
A nitride of the above element with 0 is formed and also at 700°C
By heating at a temperature below the transformation point, almost no distortion occurred.
第１図は窒素を拡散後、金属元素を電気化学的手法でメ
ッキして高温加熱する本発明の一実施例の説明図である
。FIG. 1 is an explanatory diagram of an embodiment of the present invention in which after nitrogen is diffused, a metal element is plated by an electrochemical method and heated at high temperature.
Claims (1)
ニウム、バナジウム、ニオブ、タンタル、マンガン、モ
リブデン及びタングステンよりなる群のうちの金属の１
種以上を電気化学的手法でメッキした後、高温で加熱し
て上記金属の表面にＨｖ９００〜Ｈｖ２４５０を有する
窒化物層を形成させることを特徴とする金属の表面硬化
方法。One of the metals from the group consisting of chromium, titanium, zirconium, vanadium, niobium, tantalum, manganese, molybdenum and tungsten by diffusing nitrogen on the surface of the metal.
A method for hardening the surface of a metal, which comprises plating a seed or more by an electrochemical method and then heating the metal at a high temperature to form a nitride layer having Hv900 to Hv2450 on the surface of the metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27488A JPH01177357A (en) | 1988-01-06 | 1988-01-06 | Method for hardening surface of metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27488A JPH01177357A (en) | 1988-01-06 | 1988-01-06 | Method for hardening surface of metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01177357A true JPH01177357A (en) | 1989-07-13 |
Family
ID=11469326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27488A Pending JPH01177357A (en) | 1988-01-06 | 1988-01-06 | Method for hardening surface of metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01177357A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5810947A (en) * | 1997-01-10 | 1998-09-22 | National Science Council | Method of surface modification for tool steels |
| US6086684A (en) * | 1997-06-04 | 2000-07-11 | Japan Science And Technology Corporation | Electric discharge surface treating method and apparatus |
| JP2010007134A (en) * | 2008-06-27 | 2010-01-14 | Air Water Inc | Surface treatment method for steel material, surface treatment device, and steel obtained thereby |
| JP2013127094A (en) * | 2011-12-19 | 2013-06-27 | Canon Inc | Method of manufacturing chromium nitride or chromium carbonitride, chromium nitride or chromium carbonitride, and vibration wave driving apparatus for using chromium nitride or chromium carbonitride |
-
1988
- 1988-01-06 JP JP27488A patent/JPH01177357A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5810947A (en) * | 1997-01-10 | 1998-09-22 | National Science Council | Method of surface modification for tool steels |
| US6086684A (en) * | 1997-06-04 | 2000-07-11 | Japan Science And Technology Corporation | Electric discharge surface treating method and apparatus |
| JP2010007134A (en) * | 2008-06-27 | 2010-01-14 | Air Water Inc | Surface treatment method for steel material, surface treatment device, and steel obtained thereby |
| JP2013127094A (en) * | 2011-12-19 | 2013-06-27 | Canon Inc | Method of manufacturing chromium nitride or chromium carbonitride, chromium nitride or chromium carbonitride, and vibration wave driving apparatus for using chromium nitride or chromium carbonitride |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230012836A1 (en) | Bearing component having a metallic base body and an alloy- steel coating | |
| KR950032691A (en) | Carburizing Treatment for Austenitic Metals and Austenitic Metal Products Produced accordingly | |
| JP6241896B2 (en) | Method for solution hardening of cold-deformed workpieces of passive alloys, and members solution-hardened by this method | |
| JP2015514874A5 (en) | ||
| EP0480033A1 (en) | Pipe joint made of stainless steel and method of making the same | |
| EP3594375B1 (en) | Steel alloy, bearing component, bearing, process for the manufacture of a bearing component | |
| JPH01177357A (en) | Method for hardening surface of metal | |
| JPS6140750B2 (en) | ||
| US4909860A (en) | Method for strengthening cold worked nickel-base alloys | |
| Pisarevskii et al. | Effect of N, Mo, and Si on local corrosion resistance of unstabilized Cr–Ni and Cr–Mn–Ni austenitic steels | |
| JP2607668B2 (en) | Surface hardening method for iron-based metallic materials | |
| JPH10330906A (en) | Production of austenitic stainless steel product | |
| JPS5916948A (en) | Soft-nitriding steel | |
| JPS6187852A (en) | Heat resisting austenitic stainless cast steel | |
| JPS6167761A (en) | Cold worked member of austenitic stainless steel for nuclear reactor | |
| JPH01177356A (en) | Method for hardening surface of metal | |
| JPS6254176B2 (en) | ||
| JPS63310952A (en) | Surface hardened copper alloy | |
| Park et al. | Development of New Modified “Super Saturated NitroCarburizing” for Modern High Pressure Injector in Powertrain | |
| JP2741872B2 (en) | Heat treatment method for corrosion-resistant iron-based metal articles | |
| JPS58113316A (en) | Manufacture of case hardening steel having low heat treatment strain | |
| JPS629664B2 (en) | ||
| JPH01177355A (en) | Method for hardening surface of metal | |
| JPH0234767A (en) | Carburizing and hardening method | |
| Xu et al. | Plasma Surface Metallurgy of Iron and Steel |