JPH11236661A - Production of surface hardened parts - Google Patents
Production of surface hardened partsInfo
- Publication number
- JPH11236661A JPH11236661A JP4157498A JP4157498A JPH11236661A JP H11236661 A JPH11236661 A JP H11236661A JP 4157498 A JP4157498 A JP 4157498A JP 4157498 A JP4157498 A JP 4157498A JP H11236661 A JPH11236661 A JP H11236661A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- weight
- thickness
- base material
- clad material
- 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.)
- Granted
Links
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高い剛性、靱性と
高い表面硬度、耐摩耗性を必要とする部品、例えば歯車
や軸受等の機構部品や刃物、特に摺動を繰り返す刃物、
工具等に利用することができる表面硬化部品の製造方法
に関するものである。The present invention relates to a component requiring high rigidity, toughness, high surface hardness and wear resistance, for example, a mechanical component such as a gear and a bearing, and a cutting tool, particularly a cutting tool which repeats sliding.
The present invention relates to a method for producing a surface-hardened component that can be used as a tool or the like.
【０００２】[0002]
【従来の技術】歯車や軸受などの機構部品や刃物、特に
摺動を繰り返すような刃物や工具には工具鋼、高炭素ス
テンレス鋼、析出硬化型ステンレス鋼等が利用されてき
たが、これらの材料は靱性には優れるが、表面硬度はあ
まり高くないため、耐摩耗性が悪く、消耗が激しかっ
た。このため、表面硬度が高いセラミックスの利用も考
えられているが、靱性に欠け、また加工も困難であるた
め利用は難しい。そこで上記合金にアルミナなどをＰＶ
ＤやＣＶＤ等によりコーティングした材料も存在する
が、形成される表面硬質層の厚さが０．１μｍのオーダ
ーであり、密着性等の問題もあるため、耐摩耗性等の表
面硬質層が関係する特性の改善には至っていない。2. Description of the Related Art Tool steel, high-carbon stainless steel, precipitation hardening stainless steel, and the like have been used for mechanical parts and blades such as gears and bearings, particularly for blades and tools that repeatedly slide. Although the material was excellent in toughness, the surface hardness was not so high, so the abrasion resistance was poor and the wear was severe. For this reason, use of ceramics having a high surface hardness is considered, but utilization is difficult because of lack of toughness and difficulty in processing. Therefore, alumina and PV are used for the above alloys.
Although there are materials coated by D or CVD, etc., the thickness of the formed hard surface layer is on the order of 0.1 μm, and there are problems such as adhesion. Characteristics have not been improved.
【０００３】[0003]
【発明が解決しようとする課題】そこで本発明は上記の
点に鑑みてなされたものであり、剛性、靱性に優れ、且
つ耐摩耗性にも優れる厚さが１〜１０μｍで密着性の強
い表面硬質層を有する表面硬化部品の製造方法を提供す
ることを目的とするものである。SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above points, and has a thickness of 1 to 10 .mu.m, which is excellent in rigidity, toughness, and abrasion resistance, and has strong adhesion. It is an object of the present invention to provide a method for producing a surface-hardened component having a hard layer.
【０００４】[0004]
【課題を解決するための手段】本発明の請求項１に記載
の表面硬化部品の製造方法は、鋼で形成される基材１の
表面にＴｉあるいはＴｉ合金で形成される内側クラッド
素材２を設けると共に内側クラッド素材２の表面にＦｅ
あるいはＦｅ合金で形成される外側クラッド素材３を設
け、これらをクラッド圧延により密着させ、次に、これ
を厚さ１ｍｍ以下に圧延すると共にＡｒガスの雰囲気中
で焼鈍し、これを塑性加工により所定の形状に加工した
後、不活性雰囲気中あるいは還元性雰囲気中で９５０℃
以上に５秒以上加熱することを特徴とするものである。According to a first aspect of the present invention, there is provided a method of manufacturing a surface-hardened component, comprising: forming an inner clad material 2 made of Ti or a Ti alloy on a surface of a base material 1 made of steel; Provided and the surface of the inner cladding material 2 is made of Fe.
Alternatively, an outer clad material 3 formed of an Fe alloy is provided, and these are brought into close contact with each other by clad rolling. Then, this is rolled to a thickness of 1 mm or less and annealed in an atmosphere of Ar gas. 950 ° C in an inert atmosphere or a reducing atmosphere
As described above, the heating is performed for 5 seconds or more.
【０００５】本発明の請求項２に記載の表面硬化部品の
製造方法は、鋼で形成される基材１の表面にＴｉあるい
はＴｉ合金で形成される内側クラッド素材２を設けると
共に内側クラッド素材２の表面にＣｕあるいはＣｕ合金
で形成される外側クラッド素材３を設け、これらをクラ
ッド圧延により密着させ、次に、これを厚さ１ｍｍ以下
に圧延すると共にＡｒガスの雰囲気中で焼鈍し、これを
塑性加工により所定の形状に加工した後、不活性雰囲気
中あるいは還元性雰囲気中で９５０℃以上に５秒以上加
熱することを特徴とするものである。According to a method of manufacturing a surface-hardened part according to a second aspect of the present invention, an inner clad material 2 made of Ti or a Ti alloy is provided on a surface of a base material 1 made of steel. An outer clad material 3 made of Cu or Cu alloy is provided on the surface of the substrate, and these are brought into close contact with each other by clad rolling. Then, this is rolled to a thickness of 1 mm or less and annealed in an atmosphere of Ar gas. After being processed into a predetermined shape by plastic working, it is heated to 950 ° C. or more for 5 seconds or more in an inert atmosphere or a reducing atmosphere.
【０００６】本発明の請求項３に記載の表面硬化部品の
製造方法は、鋼で形成される基材１の表面にＴｉあるい
はＴｉ合金で形成される内側クラッド素材２を設けると
共に内側クラッド素材２の表面にＮｉあるいはＮｉ合金
で形成される外側クラッド素材３を設け、これらをクラ
ッド圧延により密着させ、次に、これを厚さ１ｍｍ以下
に圧延すると共にＡｒガスの雰囲気中で焼鈍し、これを
塑性加工により所定の形状に加工した後、不活性雰囲気
中あるいは還元性雰囲気中で９５０℃以上に５秒以上加
熱することを特徴とするものである。According to a third aspect of the present invention, there is provided a method of manufacturing a surface-hardened component, comprising: providing an inner clad material 2 made of Ti or a Ti alloy on a surface of a base material 1 made of steel; An outer cladding material 3 made of Ni or a Ni alloy is provided on the surface of the substrate, and these are brought into close contact with each other by clad rolling. Then, this is rolled to a thickness of 1 mm or less and annealed in an atmosphere of Ar gas. After being processed into a predetermined shape by plastic working, it is heated to 950 ° C. or more for 5 seconds or more in an inert atmosphere or a reducing atmosphere.
【０００７】本発明の請求項４に記載の表面硬化部品の
製造方法は、請求項１の構成に加えて、基材１となる鋼
が、１０〜１５重量％のＣｒと２．５重量％以下のＭｏ
と０．３５〜１．２重量％のＣとを含む焼入硬化型ステ
ンレス鋼、あるいは０．４〜１．０重量％のＣと０．３
〜１．０重量％のＭｎとを含むばね鋼、あるいは０．４
〜１．２重量％のＣを含む炭素鋼であり、外側クラッド
素材３と内側クラッド素材２の厚みの比が１：１〜１：
４の範囲内であり、焼鈍温度が７００〜８００℃であ
り、所定の形状に加工した後の加熱が９５０〜１１５０
℃で１５秒〜１０分であることを特徴とするものであ
る。According to a fourth aspect of the present invention, there is provided a method for manufacturing a surface-hardened part, wherein the steel serving as the base material 1 comprises 10 to 15% by weight of Cr and 2.5% by weight. Mo below
Hardening stainless steel containing 0.35 to 1.2% by weight of C, or 0.4 to 1.0% by weight of C and 0.3%
Spring steel containing ~ 1.0 wt% Mn, or 0.4
１．２1.2% by weight of carbon steel, and the ratio of the thickness of the outer cladding material 3 to the thickness of the inner cladding material 2 is 1: 1 to 1:
4, the annealing temperature is 700 to 800 ° C., and the heating after processing into a predetermined shape is 950 to 1150.
C. for 15 seconds to 10 minutes.
【０００８】本発明の請求項５に記載の表面硬化部品の
製造方法は、請求項２の構成に加えて、基材１となる鋼
が、１０〜１５重量％のＣｒと２．５重量％以下のＭｏ
と０．３５〜１．２重量％のＣとを含む焼入硬化型ステ
ンレス鋼、あるいは０．４〜１．０重量％のＣと０．３
〜１．０重量％のＭｎとを含むばね鋼、あるいは０．４
〜１．２重量％のＣを含む炭素鋼であり、外側クラッド
素材３と内側クラッド素材２の厚みの比が１：１〜１：
５の範囲内であり、焼鈍温度が７００〜８００℃であ
り、所定の形状に加工した後の加熱が９５０〜１０５０
℃で１５秒〜１０分であることを特徴とするものであ
る。According to a fifth aspect of the present invention, there is provided a method for manufacturing a surface-hardened part, wherein the steel serving as the base material 1 comprises 10 to 15% by weight of Cr and 2.5% by weight. Mo below
Hardening stainless steel containing 0.35 to 1.2% by weight of C, or 0.4 to 1.0% by weight of C and 0.3%
Spring steel containing ~ 1.0 wt% Mn, or 0.4
１．２1.2% by weight of carbon steel, and the ratio of the thickness of the outer cladding material 3 to the thickness of the inner cladding material 2 is 1: 1 to 1:
5, the annealing temperature is 700 to 800 ° C, and the heating after processing into a predetermined shape is 950 to 1050.
C. for 15 seconds to 10 minutes.
【０００９】本発明の請求項６に記載の表面硬化部品の
製造方法は、請求項３の構成に加えて、基材１となる鋼
が、１０〜１５重量％のＣｒと２．５重量％以下のＭｏ
と０．３５〜１．２重量％のＣとを含む焼入硬化型ステ
ンレス鋼、あるいは０．４〜１．０重量％のＣと０．３
〜１．０重量％のＭｎとを含むばね鋼、あるいは０．４
〜１．２重量％のＣを含む炭素鋼であり、外側クラッド
素材３と内側クラッド素材２の厚みの比が３：２〜１：
４の範囲内であり、焼鈍温度が７００〜８００℃であ
り、所定の形状に加工した後の加熱が９５０〜１１５０
℃で１５秒〜１０分であることを特徴とするものであ
る。According to a sixth aspect of the present invention, in addition to the configuration of the third aspect, in addition to the constitution of the third aspect, the steel to be the base material 1 comprises 10 to 15% by weight of Cr and 2.5% by weight. Mo below
Hardening stainless steel containing 0.35 to 1.2% by weight of C, or 0.4 to 1.0% by weight of C and 0.3%
Spring steel containing ~ 1.0 wt% Mn, or 0.4
~ 1.2% by weight of carbon steel, and the ratio of the thickness of the outer cladding material 3 to the thickness of the inner cladding material 2 is 3: 2-1:
4, the annealing temperature is 700 to 800 ° C., and the heating after processing into a predetermined shape is 950 to 1150.
C. for 15 seconds to 10 minutes.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。基材１としては、靱性や剛性などを備えている任
意の合金を使用することができるが、焼入硬化型ステン
レス鋼、ばね鋼、高炭素鋼などの炭素鋼等の鋼で板状
（帯状）に基材１を形成するのが好ましい。焼入硬化型
ステンレス鋼としては、１０〜１５重量％のＣｒと、０
〜２．５重量％のＭｏと、０．３５〜１．２重量％のＣ
と、０〜０．４重量％のＶと、微量の不純物とを含み、
残部をＦｅで構成されるものなどを用いることができ
る。ばね鋼としては、０．４〜１．０重量％のＣと、
０．３〜１．０重量％のＭｎと、０〜１．５重量％のＣ
ｒと、０〜０．４重量％のＶあるいはＭｏと、微量の不
純物とを含み、残部をＦｅで構成されるものなどを用い
ることができる。炭素鋼としては、０．４〜１．２重量
％のＣと、微量の不純物とを含み、残部をＦｅで構成さ
れるものなどを用いることができる。Embodiments of the present invention will be described below. As the base material 1, any alloy having toughness, rigidity, etc. can be used. However, the base material 1 is made of steel such as quenched hardening stainless steel, spring steel, high carbon steel, or the like. It is preferable to form the base material 1 in (1). As a quench hardening type stainless steel, 10 to 15% by weight of Cr,
-2.5% by weight of Mo and 0.35-1.2% by weight of C
And 0 to 0.4% by weight of V and a trace amount of impurities,
A material whose remaining portion is made of Fe can be used. As spring steel, 0.4 to 1.0% by weight of C,
0.3-1.0 wt% Mn and 0-1.5 wt% C
It is possible to use one containing r, 0 to 0.4% by weight of V or Mo, and a trace amount of impurities, with the balance being Fe. As the carbon steel, one containing 0.4 to 1.2% by weight of C and a small amount of impurities and the balance being Fe can be used.
【００１１】内側クラッド素材２は合金でないＴｉ（純
Ｔｉ）あるいはＴｉ合金で板状（帯状）に形成されるも
のを用いることができる。Ｔｉ合金としては、例えば、
Ｔｉ−０．２Ｐｄなどの組成を有するものを用いること
ができる。外側クラッド素材３は、合金でないＦｅ（純
Ｆｅ）、Ｆｅ合金、合金でないＣｕ（純Ｃｕ）、Ｃｕ合
金、合金でないＮｉ（純Ｎｉ）、Ｎｉ合金から選ばれる
材料で板状（帯状）に形成されるものを用いることがで
きる。Ｆｅ合金としては、例えば、Ｆｅ−１７Ｃｒ−
０．３Ｓｉ−０．３Ｍｎなどの組成を有するもの（ＳＵ
Ｓなど）を用いることができる。またＣｕ合金として
は、例えば、Ｃｕ−５Ｚｎなどの組成を有するものを用
いることができる。またＮｉ合金としては、例えば、Ｎ
ｉ−３０Ｃｕ−２Ｆｅなどの組成を有するもの（モネル
メタルなど）を用いることができる。The inner cladding material 2 may be a plate (strip) made of Ti (pure Ti) or a Ti alloy which is not an alloy. As a Ti alloy, for example,
A material having a composition such as Ti-0.2Pd can be used. The outer cladding material 3 is formed in a plate shape (strip shape) using a material selected from non-alloy Fe (pure Fe), Fe alloy, non-alloy Cu (pure Cu), Cu alloy, non-alloy Ni (pure Ni), and Ni alloy. Can be used. Examples of the Fe alloy include Fe-17Cr-
One having a composition such as 0.3Si-0.3Mn (SU
S etc.) can be used. As the Cu alloy, for example, an alloy having a composition such as Cu-5Zn can be used. As the Ni alloy, for example, N
A material having a composition such as i-30Cu-2Fe (such as monel metal) can be used.
【００１２】そして上記基材１と内側クラッド素材２と
外側クラッド素材３を用いて表面硬化部品を製造するに
あたっては、まず、図２に示すように、基材１の表面
（片面あるいは両面）に内側クラッド素材２を重ね合わ
せて設けると共に内側クラッド素材２の表面に外側クラ
ッド素材３を重ね合わせて設ける。次に、基材１と内側
クラッド素材２と外側クラッド素材３を重ね合わせたも
のをクラッド圧延（圧延加工）することによって、基材
１と内側クラッド素材２と外側クラッド素材３を密着さ
せて接合一体化して積層材（クラッド材）を形成する。
次に、この積層材を冷間圧延などでさらに圧延して厚さ
１ｍｍ以下、好ましくは０．５ｍｍ以下にする。厚さが
１ｍｍを超えると、基材１と内側クラッド素材２と外側
クラッド素材３の密着性が不足して積層材に層間剥離が
生じる恐れがある。尚、基材１と内側クラッド素材２と
外側クラッド素材３の密着性を高めるために、積層材を
より薄く圧延するのが好ましいが、実際には、厚さ０．
０２ｍｍに圧延するのが限界である。In manufacturing a surface-hardened part using the base material 1, the inner clad material 2 and the outer clad material 3, first, as shown in FIG. The inner clad material 2 is provided in an overlapping manner, and the outer clad material 3 is provided on the surface of the inner clad material 2 in an overlapping manner. Next, the base material 1, the inner clad material 2 and the outer clad material 3 are superimposed on each other, and the base material 1, the inner clad material 2 and the outer clad material 3 are brought into close contact and joined by clad rolling (rolling). Integrated to form a laminated material (cladding material).
Next, the laminated material is further rolled by cold rolling or the like to a thickness of 1 mm or less, preferably 0.5 mm or less. When the thickness exceeds 1 mm, the adhesion between the base material 1, the inner clad material 2 and the outer clad material 3 is insufficient, and there is a possibility that delamination occurs in the laminated material. In order to increase the adhesion between the base material 1, the inner clad material 2 and the outer clad material 3, it is preferable to roll the laminated material thinner.
Rolling to 02 mm is the limit.
【００１３】この後、厚さ１ｍｍ以下の積層材をＡｒガ
ス（アルゴンガス）の雰囲気中で焼鈍する。積層材を厚
さ１ｍｍ以下にする上記のような圧延を行った後では、
基材１の加工硬化（加工歪み）や内側クラッド素材２及
び外側クラッド素材３の加工硬化（加工歪み）により積
層材を所定の形状に塑性加工するのは困難である。従っ
て、この焼鈍工程によって基材１や内側クラッド素材２
及び外側クラッド素材３の加工硬化を除去する必要があ
る。この焼鈍は使用する材料によっても異なるが、７０
０〜８００℃（８００℃が最適）の温度条件で１５秒〜
１５分間保持するように設定することが好ましい。焼鈍
の際の温度が７００℃未満であれば、基材の加工硬化を
除去するには不十分であり、焼鈍の際の温度が８００℃
を超えると、外側クラッド素材３のＦｅやＣｕやＮｉの
拡散が進行し過ぎて積層材の表面が硬化し、塑性加工の
際に積層材の表面にクラックが生じる恐れがある。また
焼鈍の際の保持時間が１５秒未満であれば、基材１の内
部の加熱が不十分となって加工硬化の除去にむらが生じ
る恐れがあり、焼鈍の際の保持時間が１５分を超える
と、外側クラッド素材３と内側クラッド素材２の界面に
おいて、化合物が形成されて曲げ等の塑性加工の際に積
層材の表層部分が剥離する可能性がある。尚、上記積層
材を厚み１ｍｍ以下に圧延する工程と焼鈍工程とは、連
続的に交互に繰り返し行うようにしてもよい。Thereafter, the laminated material having a thickness of 1 mm or less is annealed in an atmosphere of Ar gas (argon gas). After performing the above-mentioned rolling to reduce the thickness of the laminated material to 1 mm or less,
Due to the work hardening (work strain) of the base material 1 and the work hardening (work strain) of the inner clad material 2 and the outer clad material 3, it is difficult to plastically work the laminated material into a predetermined shape. Therefore, the base material 1 and the inner clad material 2
In addition, it is necessary to remove the work hardening of the outer clad material 3. This annealing depends on the material used,
15 seconds at a temperature of 0 to 800 ° C (800 ° C is optimal)
It is preferable to set so as to hold for 15 minutes. If the temperature at the time of annealing is less than 700 ° C., it is insufficient to remove the work hardening of the substrate, and the temperature at the time of annealing is 800 ° C.
If it exceeds, the diffusion of Fe, Cu or Ni in the outer cladding material 3 proceeds too much, and the surface of the laminated material is hardened, and cracks may be generated on the surface of the laminated material during plastic working. If the holding time during annealing is less than 15 seconds, the inside of the base material 1 may be insufficiently heated and uneven work removal may occur, and the holding time during annealing may be reduced to 15 minutes. If it exceeds, at the interface between the outer clad material 3 and the inner clad material 2, a compound may be formed, and the surface layer of the laminated material may peel off during plastic working such as bending. The step of rolling the laminate to a thickness of 1 mm or less and the step of annealing may be performed continuously and alternately.
【００１４】この後、積層材を必要に応じて切断し、曲
げや深絞りなどの塑性加工を施すことによって、所定の
形状の部品材料に形成する。次に、部品材料を不活性雰
囲気中あるいは還元性雰囲気中で９５０〜１２００℃、
５秒〜１０分間加熱し、次に、室温による空冷（自然放
熱による冷却）以上の冷却速度で冷却することによっ
て、図１に示すように、表面に表面硬化層４を有する表
面硬化部品を形成することができる。上記の不活性雰囲
気中での加熱は、真空あるいはＡｒガスなどの不活性ガ
ス中で加熱処理を行うものであり、上記の還元性雰囲気
中での加熱は、水素ガス中で加熱処理を行うものであ
る。Thereafter, the laminated material is cut as necessary and subjected to plastic working such as bending or deep drawing to form a component material having a predetermined shape. Next, the component material is heated at 950 to 1200 ° C. in an inert atmosphere or a reducing atmosphere.
Heating for 5 seconds to 10 minutes, and then cooling at a cooling rate equal to or higher than air cooling at room temperature (cooling by natural heat radiation) to form a surface hardened component having a surface hardened layer 4 on the surface as shown in FIG. can do. The heating in the above-mentioned inert atmosphere is performed in a vacuum or an inert gas such as Ar gas, and the heating in the above-described reducing atmosphere is performed in a hydrogen gas. It is.
【００１５】また上記の加熱温度の最適値は外側クラッ
ド素材３の種類などによって異なるものであり、外側ク
ラッド素材３がＦｅあるいはＦｅ合金、又はＮｉあるい
はＮｉ合金である場合には、上記加熱温度は、９５０〜
１１５０℃に設定するのが好ましく、外側クラッド素材
３がＣｕあるいはＣｕ合金である場合には、上記加熱温
度は、９５０〜１０５０℃に設定するのが好ましい。加
熱温度が９５０℃未満であれば、焼入れ不十分により表
面硬化層４の強度や基材１の部分の硬度を十分に得るこ
とができない恐れがあり、加熱温度が１２００℃を超え
ると、基材１の部分の再結晶が進行し過ぎて結晶粒が粗
大化し、表面硬化部品の靱性が低下する恐れがある。ま
た加熱時間が５秒未満であれば、部品材料に熱を均一に
かけることが困難であり、焼入れが入らない部分ができ
たり、拡散によるＴｉ−Ｆｅ系金属間化合物、あるいは
Ｔｉ−Ｃｕ系金属間化合物、あるいはＴｉ−Ｎｉ系金属
間化合物の生成が不十分となって表面硬化層４の硬度が
低下したりする恐れがある。加熱時間が１０分を超える
と、内側クラッド素材２で形成されるＴｉ層への基材１
のＣの拡散（後述の中間層６が存在する場合は中間層６
の成分の拡散も）が進行して基材１のＣの濃度が低下し
過ぎ、焼入れによる基材１の部分の硬化を果たすことが
できなくなる恐れがある。そこで上記加熱条件の中でも
９５０〜１１００℃で５秒〜１０分間加熱処理するのが
好ましく、最も好ましい条件は１０５０℃で１〜２分間
に設定される。また空冷に満たないような冷却速度で冷
却した場合も基材１の焼入れは困難であるので、例え
ば、５℃／分以上の冷却速度で冷却するのが好ましい。The above-mentioned optimum value of the heating temperature differs depending on the type of the outer cladding material 3 and the like. When the outer cladding material 3 is made of Fe or an Fe alloy, or Ni or a Ni alloy, the above-mentioned heating temperature becomes 950
The heating temperature is preferably set to 1150 ° C, and when the outer cladding material 3 is made of Cu or a Cu alloy, the heating temperature is preferably set to 950 to 1050 ° C. If the heating temperature is lower than 950 ° C, the strength of the surface hardened layer 4 and the hardness of the portion of the substrate 1 may not be sufficiently obtained due to insufficient quenching. The recrystallization of the portion 1 may proceed too much, causing the crystal grains to become coarse and the toughness of the surface-hardened part to be reduced. If the heating time is less than 5 seconds, it is difficult to uniformly apply heat to the component material, and there is a portion where quenching does not occur, a Ti-Fe-based intermetallic compound due to diffusion, or a Ti-Cu-based metal. There is a possibility that the generation of the intermetallic compound or the Ti-Ni-based intermetallic compound becomes insufficient and the hardness of the surface hardened layer 4 is reduced. If the heating time exceeds 10 minutes, the base material 1 on the Ti layer formed by the inner clad material 2
(If the intermediate layer 6 described later exists, the intermediate layer 6
Of the base material 1), the C concentration of the base material 1 may be too low, and the hardening of the portion of the base material 1 by quenching may not be achieved. Therefore, among the above heating conditions, it is preferable to perform the heat treatment at 950 to 1100 ° C for 5 seconds to 10 minutes, and the most preferable condition is set to 1050 ° C for 1 to 2 minutes. Also, when the cooling is performed at a cooling rate lower than the air cooling, the quenching of the base material 1 is difficult.
【００１６】上記のように形成される表面硬化部品は、
塑性加工後の加熱による熱処理によって基材１を焼入れ
することができ、剛性を高めるように改善することがで
きる。また塑性加工後の加熱による熱処理によって、外
側クラッド素材３と内側クラッド素材２の間で相互に拡
散が進み、表面にＦｅあるいはＣｕあるいはＮｉとＴｉ
の金属間化合物、つまりＴｉＦｅ、ＴｉＦｅ2 、Ｔｉ2
Ｃｕ、ＴｉＣｕ、ＴｉＮｉ3 、Ｔｉ2 Ｎｉなどの金属間
化合物を含む表面硬化層４を形成することができ、この
表面硬化層４によって表面硬度が高くなって耐磨耗性等
を高くすることができるものである。さらに塑性加工後
の加熱による熱処理によって、基材１と内側クラッド素
材２の間で相互に拡散が進み、表面硬化層４と基材１の
間にＴｉとＣの金属間化合物、つまりＴｉＣなどの金属
間化合物を含む密着層５を形成することができると共に
Ｔｉ、Ｚｒ、Ｔａ、Ｎｂなどの金属間化合物を含む密着
層５を形成することができ、この密着層５によって表面
硬化層４と基材１の密着性を高くすることができると共
に表面硬化層４と基材１を剥離しにくくすることができ
るものである。尚、用いる材料の成分によって密着層５
は図３に示すように生成されない場合があるが、この場
合でも、相互拡散によって表面硬化層４と基材１の密着
性を高めることができる。The surface hardened part formed as described above is
The base material 1 can be quenched by heat treatment by heating after plastic working, and the rigidity can be improved to be increased. Further, due to the heat treatment by heating after the plastic working, the diffusion between the outer clad material 3 and the inner clad material 2 proceeds, and the surface is made of Fe or Cu or Ni and Ti.
Intermetallic compounds of TiFe, TiFe 2 , Ti 2
A surface hardened layer 4 containing an intermetallic compound such as Cu, TiCu, TiNi 3 , or Ti 2 Ni can be formed, and the surface hardened layer 4 can increase the surface hardness and increase abrasion resistance and the like. You can do it. Further, by heat treatment by heating after plastic working, diffusion between the base material 1 and the inner cladding material 2 proceeds mutually, and an intermetallic compound of Ti and C between the surface hardened layer 4 and the base material 1, that is, The adhesion layer 5 containing an intermetallic compound can be formed, and the adhesion layer 5 containing an intermetallic compound such as Ti, Zr, Ta, or Nb can be formed. The adhesiveness of the material 1 can be improved, and the hardened surface layer 4 and the substrate 1 can be hardly peeled off. The adhesion layer 5 depends on the components of the material used.
May not be generated as shown in FIG. 3, but even in this case, the adhesion between the surface hardened layer 4 and the substrate 1 can be enhanced by mutual diffusion.
【００１７】表面硬化層４の厚みは１〜１０μｍである
ことが好ましい。表面硬化層４の厚みが１μｍ未満であ
れば、耐磨耗性を高くすることができなくなる恐れがあ
り、表面硬化層４の厚みが１０μｍを超えると、耐磨耗
性は大きく向上するものの、靱性を損なうようになっ
て、工具等の使用に適さなくなる恐れがある。つまり表
面硬化層４の厚みを１〜１０μｍにすることによって、
耐磨耗性が充分で靱性に優れる表面硬化部品を形成する
ことができる。そして表面硬化層４の厚みを１〜１０μ
ｍにするために、基材１の成分や外側クラッド素材３の
成分、内側クラッド素材２と外側クラッド素材３の各厚
み、焼鈍や塑性加工後の加熱の温度条件などを諸処理条
件を設定する必要があるが、これら諸処理条件は表面硬
化層４の種類などによっても異なってくる。例えば、外
側クラッド素材３がＦｅあるいはＦｅ合金である場合、
外側クラッド素材３と内側クラッド素材２の厚みの比は
１：１〜１：４の範囲内にするのが好ましく、外側クラ
ッド素材３がＣｕあるいはＣｕ合金である場合、外側ク
ラッド素材３と内側クラッド素材２の厚みの比は１：１
〜１：５の範囲内にするのが好ましく、外側クラッド素
材３がＮｉあるいはＮｉ合金である場合、外側クラッド
素材３と内側クラッド素材２の厚みの比は３：２〜１：
４の範囲内にするのが好ましい。The thickness of the surface hardened layer 4 is preferably 1 to 10 μm. If the thickness of the surface hardened layer 4 is less than 1 μm, the abrasion resistance may not be able to be increased, and if the thickness of the surface hardened layer 4 exceeds 10 μm, the abrasion resistance is greatly improved, The toughness may be impaired, making the tool unsuitable for use. That is, by setting the thickness of the surface hardened layer 4 to 1 to 10 μm,
A surface-hardened part having sufficient abrasion resistance and excellent toughness can be formed. Then, the thickness of the surface hardened layer 4 is 1 to 10 μm.
In order to obtain m, various processing conditions are set such as a component of the base material 1 and a component of the outer cladding material 3, respective thicknesses of the inner cladding material 2 and the outer cladding material 3, temperature conditions of annealing and heating after plastic working. Although it is necessary, these various processing conditions differ depending on the type of the surface hardened layer 4 and the like. For example, when the outer cladding material 3 is Fe or an Fe alloy,
The ratio of the thickness of the outer clad material 3 to the thickness of the inner clad material 2 is preferably in the range of 1: 1 to 1: 4, and when the outer clad material 3 is Cu or a Cu alloy, the outer clad material 3 and the inner clad material 3 The ratio of the thickness of the material 2 is 1: 1
In a case where the outer cladding material 3 is Ni or a Ni alloy, the ratio of the thickness of the outer cladding material 3 to the thickness of the inner cladding material 2 is 3: 2 to 1:
It is preferable to be within the range of 4.
【００１８】上記の実施の形態において、基材１と内側
クラッド素材２の間にさらに中間層６を挟んで設けるこ
とができる。つまり図４に示すように、基材１の表面
（片面あるいは両面）に中間層６を設け、この中間層６
の表面に内側クラッド素材２を重ね合わせると共に内側
クラッド素材２の表面に外側クラッド素材３を重ね合わ
せる。次に、基材１と中間層６と内側クラッド素材２と
外側クラッド素材３を重ね合わせたものをクラッド圧延
（圧延加工）することによって、基材１と中間層６と内
側クラッド素材２と外側クラッド素材３を密着させて接
合一体化して積層材（クラッド材）を形成する。この後
は上記実施の形態と同様にして図１や図３のような表面
硬化部品を形成するのである。中間層６は合金でないＦ
ｅ（純Ｆｅ）、合金でないＣｕ（純Ｃｕ）、合金でない
Ｎｉ（純Ｎｉ）から選ばれる材料で板状（帯状）に形成
されるものを用いることができる。In the above embodiment, an intermediate layer 6 can be further provided between the base material 1 and the inner clad material 2. That is, as shown in FIG. 4, an intermediate layer 6 is provided on the surface (one side or both sides) of the substrate 1, and the intermediate layer 6
Of the inner clad material 2 and the outer clad material 3 on the surface of the inner clad material 2. Next, the substrate 1, the intermediate layer 6, the inner clad material 2, and the outer clad material 3 are superimposed on each other, and the resulting material is clad-rolled (rolled). The clad material 3 is brought into close contact and joined and integrated to form a laminated material (clad material). Thereafter, similarly to the above-described embodiment, a surface-hardened part as shown in FIGS. 1 and 3 is formed. Intermediate layer 6 is non-alloy F
A material selected from e (pure Fe), non-alloy Cu (pure Cu), and non-alloy Ni (pure Ni) and formed in a plate shape (strip shape) can be used.
【００１９】このように中間層６を設けて形成される表
面硬化部品は、塑性加工後の加熱による熱処理によっ
て、基材１と中間層６と内側クラッド素材２の間で相互
に拡散が進み、表面硬化層４と基材１の間に中間層６に
含まれるＦｅあるいはＣｕあるいはＮｉと内側クラッド
素材２のＴｉとの金属間化合物、あるいはＴｉとＣの金
属間化合物、つまりＴｉＦｅ、ＴｉＦｅ2 、Ｔｉ2 Ｃ
ｕ、ＴｉＣｕ、ＴｉＮｉ3、Ｔｉ2 Ｎｉ、ＴｉＣなどの
金属間化合物を含む密着層５を形成することができると
共にＴｉ、Ｚｒ、Ｔａ、Ｎｂなどの金属間化合物を含む
密着層５を形成することができ、この密着層５によって
表面硬化層４と基材１の密着性を上記実施の形態よりも
さらに高くすることができると共に表面硬化層４と基材
１を上記実施の形態よりもさらに剥離しにくくすること
ができるものである。尚、用いる材料の成分によって密
着層５は図３に示すように生成されない場合があるが、
この場合でも、相互拡散によって表面硬化層４と基材１
の密着性を高めることができる。The surface-hardened part formed by providing the intermediate layer 6 in this way diffuses between the base material 1, the intermediate layer 6 and the inner cladding material 2 by heat treatment by heating after plastic working, An intermetallic compound of Fe or Cu or Ni contained in the intermediate layer 6 between the surface hardened layer 4 and the base material 1 and Ti of the inner cladding material 2 or an intermetallic compound of Ti and C, that is, TiFe, TiFe 2 , Ti 2 C
It is possible to form the adhesion layer 5 containing an intermetallic compound such as u, TiCu, TiNi 3 , Ti 2 Ni, and TiC, and to form the adhesion layer 5 containing an intermetallic compound such as Ti, Zr, Ta, and Nb. The adhesion between the surface hardened layer 4 and the base material 1 can be further enhanced by the adhesion layer 5 as compared with the above embodiment, and the surface hardened layer 4 and the base material 1 can be further peeled off than in the above embodiment. It is possible to make it difficult. Although the adhesion layer 5 may not be formed as shown in FIG. 3 depending on the components of the material used,
Also in this case, the surface hardened layer 4 and the substrate 1 are interdiffused.
Can be improved in adhesion.
【００２０】尚、図２、４に示す外側クラッド素材３で
ある最表面層のＦｅ、Ｃｕ、Ｎｉあるいはその合金層が
なくても、内側クラッド素材２のＴｉあるいはＴｉ合金
が基材１や中間層６とが加熱により反応して表面硬化層
４を形成することは可能である。しかし、Ｔｉあるいは
Ｔｉ合金の層が最表面にあると、連続炉で達成できるレ
ベルのＡｒ雰囲気純度では、焼鈍時に酸素、窒素がＴｉ
あるいはＴｉ合金中に吸収され、表面層の延性を損な
う。その結果、曲げ等の塑性加工でクラックを生じる恐
れが出てくる。また、バッチ式の炉で、ガス置換を十分
に行い、密封を完全に行えば、ＴｉあるいはＴｉ合金中
への酸素、窒素の吸収は十分に抑制される。しかし、本
発明のような０．５ｍｍ以下の厚さでは、巻付ければ相
互に焼付く恐れがあり、フリーに近い状態で焼鈍を行う
と変形は避けられない。従って、バッチ炉での生産は困
難である。以上の点から外側クラッド素材３の層がなけ
れば延性の確保は困難である。In addition, even if there is no outermost clad material Fe, Cu, Ni or its alloy layer as the outer clad material 3 shown in FIGS. It is possible that the layer 6 reacts with the heating to form the hardened surface layer 4. However, if the layer of Ti or Ti alloy is on the outermost surface, oxygen and nitrogen will be reduced during annealing at a level of Ar atmosphere purity that can be achieved in a continuous furnace.
Alternatively, it is absorbed in the Ti alloy and impairs the ductility of the surface layer. As a result, there is a possibility that cracks may occur in plastic working such as bending. Further, if the gas exchange is sufficiently performed and the sealing is completely performed in a batch furnace, the absorption of oxygen and nitrogen into Ti or a Ti alloy is sufficiently suppressed. However, in the case of a thickness of 0.5 mm or less as in the present invention, there is a risk of seizure when wound, and deformation is inevitable when annealing is performed in a state close to free. Therefore, production in a batch furnace is difficult. From the above points, it is difficult to ensure ductility without the layer of the outer cladding material 3.
【００２１】次に、上記実施の形態の具体例を示す。基
材１としてはＦｅ−Ｃｒ−Ｃ系の焼入硬化型ステンレス
鋼で形成されるものを用い、その組成はＦｅ−１３．５
Ｃｒ−０．４Ｃ−１．２Ｍｏであった。この基材１の表
面に中間層６としてＮｉ層を形成し、Ｎｉ層の表面に内
側クラッド素材２としてＴｉ層を形成し、Ｔｉ層の表面
に外側クラッド素材３としてＦｅ層を形成する。次に、
これをクラッド圧延して接合して密着させることによっ
て積層材を形成すると共にさらに積層材を、Ｆｅ層の厚
みが２μｍ、Ｔｉ層の厚みが３μｍ、Ｎｉ層の厚みが１
μｍ、全体の厚みが厚み１００μｍとなるまで圧延し
た。Next, a specific example of the above embodiment will be described. The base material 1 is made of a quenching-hardening stainless steel of the Fe-Cr-C type, and its composition is Fe-13.5.
Cr-0.4C-1.2Mo. An Ni layer is formed as an intermediate layer 6 on the surface of the base material 1, a Ti layer is formed as an inner cladding material 2 on the surface of the Ni layer, and an Fe layer is formed as an outer cladding material 3 on the surface of the Ti layer. next,
This is clad-rolled, joined and adhered to form a laminated material. Further, the laminated material is further composed of a Fe layer having a thickness of 2 μm, a Ti layer having a thickness of 3 μm, and a Ni layer having a thickness of 1 μm.
The thickness was rolled until the total thickness became 100 μm.
【００２２】次に、９９．９９％Ａｒガス雰囲気中で７
００〜８００℃（８００℃が最適）の温度条件で１５秒
〜１５分間保持して積層材を焼鈍する。次に、これを切
断したり塑性加工したりして所定の形状の部品材料に形
成する。次に、部品材料を不活性雰囲気中あるいは還元
性雰囲気中で９５０〜１２００℃、５秒〜１０分間加熱
し、次に、空冷（自然放熱による冷却）以上の冷却速度
で冷却することによって、図１に示すように、表面に表
面硬化層４を有する表面硬化部品を形成することができ
る。この表面硬化層４はＴｉ−Ｆｅ系金属間化合物層で
あり、またこの内側にはＦｅとＴｉＣが相互に拡散し結
合して表面のＴｉ−Ｆｅ系金属間化合物層が基材１に密
着するための密着層５が形成されている。Next, 7 in a 99.99% Ar gas atmosphere.
The laminated material is annealed while being kept at a temperature condition of 00 to 800 ° C. (800 ° C. is optimal) for 15 seconds to 15 minutes. Next, this is cut or subjected to plastic working to form a component material having a predetermined shape. Next, the component material is heated at 950 to 1200 ° C. for 5 seconds to 10 minutes in an inert atmosphere or a reducing atmosphere, and then cooled at a cooling rate of air cooling (cooling by natural heat radiation) or more. As shown in FIG. 1, a surface-hardened component having a surface-hardened layer 4 on the surface can be formed. The surface hardened layer 4 is a Ti-Fe-based intermetallic compound layer, and Fe and TiC are diffused and bonded to each other, and the Ti-Fe-based intermetallic compound layer on the surface is in close contact with the substrate 1. Adhesion layer 5 is formed.
【００２３】[0023]
【実施例】以下、本発明を実施例によって詳述する。 ［実施例１］焼入硬化型ステンレス鋼（Ｆｅ−１３．５
Ｃｒ−１．２Ｍｏ−０．４Ｃ−０．３Ｓｉ−０．３Ｍ
ｎ）の基材１の両側の表面に純Ｎｉで形成される中間層
６を重ね合わせて設け、中間層６の表面に純Ｔｉで形成
される内側クラッド素材２を重ね合わせて設けて基材１
と内側クラッド素材２の間に中間層６を挟み、内側クラ
ッド素材２の外側に純Ｆｅで形成される外側クラッド素
材３を重ね合わせて設け、これらをクラッド圧延により
接合して積層材とした。この積層材を圧延して全体の厚
さが０．２ｍｍ、片側のＮｉ層、Ｔｉ層、Ｆｅ層の厚さ
がそれぞれ０．５μｍ、４μｍ、２μｍとなったシート
フープを形成した。次に、これを９９．９９％Ａｒガス
フローの連続炉で７５０℃、１分間焼鈍してから所定の
形に切断し、曲げ加工を行った。この際、曲げＲ部（曲
げ屈曲部）にクラックは確認されなかった。このように
して所定の形状に形成した部品材料を、９９．９９％の
Ａｒ雰囲気中で１０５０℃×５分加熱後、空冷した。こ
れにより表面に約５μｍのＴｉＦｅとＴｉＦｅ2 の金属
間化合物からなる表面硬化層４を有する表面硬化部品を
得た。The present invention will be described below in detail with reference to examples. [Example 1] Quench hardening type stainless steel (Fe-13.5)
Cr-1.2Mo-0.4C-0.3Si-0.3M
n) The intermediate layer 6 formed of pure Ni is provided on both surfaces of the base material 1 on both sides thereof, and the inner cladding material 2 formed of pure Ti is provided on the surface of the intermediate layer 6 on the base material. 1
An intermediate layer 6 was sandwiched between the inner clad material 2 and the outer clad material 3 formed of pure Fe on the outer side of the inner clad material 2, and these were joined by clad rolling to form a laminated material. The laminated material was rolled to form a sheet hoop having an overall thickness of 0.2 mm, and the thickness of one side of the Ni layer, Ti layer, and Fe layer was 0.5 μm, 4 μm, and 2 μm, respectively. Next, this was annealed at 750 ° C. for 1 minute in a continuous furnace with a 99.99% Ar gas flow, cut into a predetermined shape, and bent. At this time, no crack was observed at the bending R portion (bending bending portion). The component material thus formed into a predetermined shape was heated in a 99.99% Ar atmosphere at 1050 ° C. for 5 minutes and then air-cooled. As a result, a surface-hardened part having a surface hardened layer 4 of about 5 μm made of an intermetallic compound of TiFe and TiFe 2 was obtained.
【００２４】［実施例２］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−０．１５Ｍｏ−０．６Ｃ−０．３Ｓ
ｉ−０．３Ｍｎ）の基材１の両側の表面に純Ｔｉで形成
される内側クラッド素材２を重ね合わせて設け、内側ク
ラッド素材２の外側にＳＵＳ４３０（Ｆｅ−１７Ｃｒ−
０．３Ｓｉ−０．３Ｍｎ）で形成される外側クラッド素
材３を重ね合わせて設け、これらをクラッド圧延により
接合して積層材とした。この積層材を圧延して全体の厚
さが０．５ｍｍ、片側のＴｉ層、ＳＵＳ４３０層の厚さ
がそれぞれ２μｍ、２μｍのシートフープを形成した。
次に、これを９９．９９％Ａｒガスフローの連続炉で８
００℃、２分間焼鈍してから所定の形状に切断し、曲げ
加工を行った。この際、曲げＲ部にクラックは確認され
なかった。このようにして所定の形状に形成した部品材
料を９９．９９％Ａｒ雰囲気中で９５０℃×１分加熱
後、空冷した。これにより表面に約３μｍのＴｉＦｅと
ＴｉＦｅ2 の金属間化合物からなる表面硬化層４を有す
る表面硬化部品を得た。[Example 2] Quench hardening type stainless steel (F
e-13.5Cr-0.15Mo-0.6C-0.3S
i-0.3Mn) base material 1 on both sides of an inner clad material 2 made of pure Ti is provided in an overlapping manner, and SUS430 (Fe-17Cr-
An outer clad material 3 made of 0.3Si-0.3Mn) was provided in an overlapping manner, and these were joined by clad rolling to form a laminated material. This laminated material was rolled to form a sheet hoop having an overall thickness of 0.5 mm and a thickness of one side of the Ti layer and SUS430 layer of 2 μm and 2 μm, respectively.
Next, this was placed in a continuous furnace with a 99.99% Ar gas flow for 8 hours.
After annealing at 00 ° C. for 2 minutes, it was cut into a predetermined shape and bent. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was heated at 950 ° C. for 1 minute in an atmosphere of 99.99% Ar and then air-cooled. As a result, a surface-hardened component having a surface hardened layer 4 of about 3 μm made of an intermetallic compound of TiFe and TiFe 2 was obtained.
【００２５】［実施例３］焼入硬化型ステンレス鋼（Ｆ
ｅ−１４．０Ｃｒ−１．２５Ｍｏ−０．４Ｃ−０．３Ｓ
ｉ−０．３Ｍｎ）の基材１の両側の表面に純Ｃｕで形成
される中間層６を重ね合わせて設け、中間層６の表面に
純Ｔｉで形成される内側クラッド素材２を重ね合わせて
設けて基材１と内側クラッド素材２の間に中間層６を挟
み、内側クラッド素材２の外側に純Ｃｕで形成される外
側クラッド素材３を重ね合わせて設け、これらをクラッ
ド圧延により接合して積層材とした。この積層材を圧延
して全体の厚さが０．４ｍｍ、片側のＣｕ層、Ｔｉ層、
Ｃｕ層の厚さがそれぞれ１μｍ、３μｍ、１μｍのシー
トフープを形成した。次に、これを９９．９９％Ａｒガ
スフローの連続炉で７００℃、５分間焼鈍してから所定
の形状に切断し、曲げ加工を行った。この際、曲げＲ部
にクラックは確認されなかった。このようにして所定の
形状に形成した部品材料を９９．９９％Ａｒ雰囲気中で
１０００℃×４分加熱後、空冷した。これにより表面に
約４μｍのＴｉ2 Ｃｕ、ＴｉＣｕの金属間化合物からな
る表面硬化層４を有する表面硬化部品を得た。[Example 3] Quench hardening type stainless steel (F
e-14.0Cr-1.25Mo-0.4C-0.3S
(i-0.3 Mn) The intermediate layer 6 made of pure Cu is provided on both surfaces of the base material 1 on both sides thereof, and the inner clad material 2 made of pure Ti is superposed on the surface of the intermediate layer 6. The intermediate layer 6 is sandwiched between the base material 1 and the inner clad material 2, and the outer clad material 3 made of pure Cu is provided on the outer side of the inner clad material 2 by overlapping, and these are joined by clad rolling. It was a laminated material. This laminated material is rolled to have a total thickness of 0.4 mm, a Cu layer on one side, a Ti layer,
Sheet hoops having a Cu layer thickness of 1 μm, 3 μm, and 1 μm, respectively, were formed. Next, this was annealed in a continuous furnace with a 99.99% Ar gas flow at 700 ° C. for 5 minutes, cut into a predetermined shape, and bent. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was heated in a 99.99% Ar atmosphere at 1000 ° C. for 4 minutes and then air-cooled. As a result, a surface hardened component having a surface hardened layer 4 of about 4 μm made of an intermetallic compound of Ti 2 Cu and TiCu was obtained.
【００２６】［実施例４］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−０．３Ｃ−０．４Ｓｉ−０．５Ｍ
ｎ）の基材１の両側の表面に純Ｎｉで形成される中間層
６を重ね合わせて設け、中間層６の表面に純Ｔｉで形成
される内側クラッド素材２を重ね合わせて設けて基材１
と内側クラッド素材２の間に中間層６を挟み、内側クラ
ッド素材２の外側に純Ｃｕで形成される外側クラッド素
材３を重ね合わせて設け、これらをクラッド圧延により
接合して積層材とした。この積層材を圧延して全体の厚
さ０．５ｍｍ、片側のＮｉ層、Ｔｉ層、Ｃｕ層の厚さが
それぞれ１μｍ、４μｍ、２μｍのシートフープを形成
した。次に、これを９９．９９％Ａｒガスフローの連続
炉で７５０℃、４分間焼鈍してから所定の形に切断し、
曲げ加工を行った。この際、曲げＲ部にクラックは確認
されなかった。このようにして所定の形状に形成した部
品材料を９９．９９％Ａｒ雰囲気中で１０００℃×４分
加熱後、空冷した。これにより表面に約５μｍのＴｉ2
Ｃｕ、ＴｉＣｕの金属間化合物からなる表面硬化層４を
有する表面硬化部品を得た。[Example 4] Quench hardening type stainless steel (F
e-13.5Cr-0.3C-0.4Si-0.5M
n) The intermediate layer 6 formed of pure Ni is provided on both surfaces of the base material 1 on both sides thereof, and the inner cladding material 2 formed of pure Ti is provided on the surface of the intermediate layer 6 on the base material. 1
An intermediate layer 6 was sandwiched between the inner clad material 2 and the outer clad material 3 formed of pure Cu on the outer side of the inner clad material 2, and these were joined by clad rolling to form a laminated material. This laminated material was rolled to form a sheet hoop having an overall thickness of 0.5 mm and a thickness of one side of the Ni layer, Ti layer, and Cu layer of 1 μm, 4 μm, and 2 μm, respectively. Next, this was annealed at 750 ° C. for 4 minutes in a continuous furnace with a 99.99% Ar gas flow, and then cut into a predetermined shape.
Bending was performed. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was heated in a 99.99% Ar atmosphere at 1000 ° C. for 4 minutes and then air-cooled. As a result, about 5 μm of Ti 2
A surface-hardened component having a surface-hardened layer 4 made of an intermetallic compound of Cu and TiCu was obtained.
【００２７】［実施例５］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−０．１５Ｍｏ−０．６Ｃ−０．３Ｓ
ｉ−０．３Ｍｎ）の基材１の両側の表面に純Ｔｉで形成
される内側クラッド素材２を重ね合わせて設け、内側ク
ラッド素材２の外側にＣ２１００（Ｃｕ−５Ｚｎ）を重
ね合わせて設け、これらをクラッド圧延により接合して
積層材とした。この積層材を圧延して全体の厚さ０．０
５ｍｍ、片側のＴｉ層、Ｃ２１００層の厚さがそれぞれ
４μｍ、２μｍのシートフープを形成した。これを９
９．９９％Ａｒガスフローの連続炉で８００℃、５秒間
焼鈍してから所定の形状に切断し、曲げ加工を行った。
この際、曲げＲ部にクラックは確認されなかった。この
ようにして所定の形状に形成した部品材料を９９．９９
％Ａｒ雰囲気中で９５０℃×１５秒加熱後、空冷した。
これにより表面に約５μｍのＴｉ2 Ｃｕ、ＴｉＣｕの金
属間化合物からなる表面硬化層４を有する表面硬化部品
を得た。[Example 5] Quench hardening type stainless steel (F
e-13.5Cr-0.15Mo-0.6C-0.3S
i-0.3Mn), an inner cladding material 2 formed of pure Ti is provided on both surfaces of the base material 1 on both sides thereof, and C2100 (Cu-5Zn) is provided on the outer surface of the inner cladding material 2 so as to be provided, These were joined by clad rolling to form a laminated material. This laminate is rolled to a total thickness of 0.0
Sheet hoops having a thickness of 5 mm, a thickness of one side of the Ti layer and a thickness of the C2100 layer of 4 μm and 2 μm, respectively, were formed. This is 9
After annealing in a continuous furnace with a 9.99% Ar gas flow at 800 ° C. for 5 seconds, the resultant was cut into a predetermined shape and bent.
At this time, no crack was observed at the bending R portion. The component material formed in a predetermined shape in this way is 99.99.
After heating at 950 ° C. for 15 seconds in a% Ar atmosphere, the mixture was air-cooled.
As a result, a surface-hardened component having a surface hardened layer 4 of about 5 μm made of an intermetallic compound of Ti 2 Cu and TiCu was obtained.
【００２８】［実施例６］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−０．１５Ｍｏ−０．６Ｃ−０．３Ｓ
ｉ−０．３Ｍｎ）の基材１の両側の表面にに純Ｎｉで形
成される中間層６を重ね合わせて設け、中間層６の表面
に純Ｔｉで形成される内側クラッド素材２を重ね合わせ
て設けて基材１と内側クラッド素材２の間に中間層６を
挟み、内側クラッド素材２の外側に純Ｎｉで形成される
外側クラッド素材３を重ね合わせて設け、これらをクラ
ッド圧延により接合して積層材とした。この積層材を圧
延して全体の厚さが０．１ｍｍ、片側のＮｉ層、Ｔｉ
層、Ｎｉ層の厚さがそれぞれ０．２μｍ、２μｍ、３μ
ｍのシートフープを形成した。次に、これを９９．９９
％Ａｒガスフローの連続炉で８００℃、２分間焼鈍して
から所定の形状に切断し、曲げ加工を行った。この際、
曲げＲ部にクラックは確認されなかった。このようにし
て所定の形状に形成した部品材料を９９．９９％Ａｒ雰
囲気中で１１５０℃×１０分加熱後、空冷した。これに
より表面に約４μｍのＴｉＮｉ3 の金属間化合物からな
る表面硬化層４を有する表面硬化部品を得た。[Example 6] Quench hardening type stainless steel (F
e-13.5Cr-0.15Mo-0.6C-0.3S
(i-0.3 Mn), an intermediate layer 6 made of pure Ni is provided on both surfaces of the base material 1 on both sides thereof, and an inner cladding material 2 made of pure Ti is provided on the surface of the intermediate layer 6. The intermediate layer 6 is sandwiched between the base material 1 and the inner clad material 2, and the outer clad material 3 formed of pure Ni is provided on the outer side of the inner clad material 2, and these are joined by clad rolling. To form a laminated material. This laminated material is rolled to have a total thickness of 0.1 mm, a Ni layer on one side, Ti
Layer and Ni layer have a thickness of 0.2 μm, 2 μm, and 3 μm, respectively.
m sheet hoops were formed. Next, this is 99.99
Annealed at 800 ° C. for 2 minutes in a continuous furnace with a% Ar gas flow, cut into a predetermined shape, and bent. On this occasion,
No crack was observed in the bending R portion. The component material thus formed into a predetermined shape was heated at 1150 ° C. for 10 minutes in an atmosphere of 99.99% Ar and then air-cooled. As a result, a surface-hardened part having a surface hardened layer 4 of about 4 μm of an intermetallic compound of TiNi 3 was obtained.
【００２９】［実施例７］焼入硬化型ステンレス鋼（Ｆ
ｅ−１０．５Ｃｒ−０．５Ｃ−０．３Ｓｉ−０．３Ｍ
ｎ）の基材１の両側の表面に純Ｎｉで形成される中間層
６を重ね合わせて設け、中間層６の表面に純Ｔｉで形成
される内側クラッド素材２を重ね合わせて設けて基材１
と内側クラッド素材２の間に中間層６を挟み、内側クラ
ッド素材２の外側に純Ｎｉで形成される外側クラッド素
材３を重ね合わせて設け、これらをクラッド圧延により
接合して積層材とした。この積層材を圧延して全体の厚
さが０．１ｍｍ、片側のＮｉ層、Ｔｉ層、Ｎｉ層の厚さ
がそれぞれ０．２μｍ、４μｍ、１μｍのシートフープ
を形成した。次に、これを９９．９９％Ａｒガスフロー
の連続炉で７５０℃、３０秒間焼鈍してから所定の形状
に切断し、曲げ加工を行った。この際、曲げＲ部にクラ
ックは確認されなかった。このようにして所定の形状に
形成した部品材料を９９．９９％Ａｒ雰囲気中で１２０
０℃×５分加熱後、空冷した。これにより表面に約４μ
ｍのＴｉ2 Ｎｉの金属間化合物からなる表面硬化層４を
有する表面硬化部品を得た。[Example 7] Quench hardening type stainless steel (F
e-10.5Cr-0.5C-0.3Si-0.3M
n) The intermediate layer 6 formed of pure Ni is provided on both surfaces of the base material 1 on both sides thereof, and the inner cladding material 2 formed of pure Ti is provided on the surface of the intermediate layer 6 on the base material. 1
An intermediate layer 6 is sandwiched between the inner clad material 2 and the outer clad material 3 formed of pure Ni on the outer side of the inner clad material 2, and these are joined by clad rolling to form a laminated material. This laminated material was rolled to form a sheet hoop having an overall thickness of 0.1 mm and a thickness of one side of the Ni layer, Ti layer, and Ni layer of 0.2 μm, 4 μm, and 1 μm, respectively. Next, this was annealed at 750 ° C. for 30 seconds in a continuous furnace with a 99.99% Ar gas flow, cut into a predetermined shape, and bent. At this time, no crack was observed at the bending R portion. The component material formed in a predetermined shape in this way is subjected to 120% in a 99.99% Ar atmosphere.
After heating at 0 ° C for 5 minutes, the mixture was air-cooled. This makes the surface approximately 4μ
Thus, a surface-hardened component having a surface-hardened layer 4 made of m 2 Ti 2 Ni intermetallic compound was obtained.
【００３０】［実施例８］焼入硬化型ステンレス鋼（Ｆ
ｅ−１０．５Ｃｒ−０．５Ｃ−０．３Ｓｉ−０．３Ｍ
ｎ）の基材１の両側の表面に純Ｎｉで形成されるを中間
層６を重ね合わせて設け、中間層６の表面に純Ｔｉで形
成される内側クラッド素材２を重ね合わせて設けて基材
１と内側クラッド素材２の間に中間層６を挟み、内側ク
ラッド素材２の外側にモネルメタル（Ｎｉ−３０Ｃｕ−
２Ｆｅ）を重ね合わせて設け、これらをクラッド圧延に
より接合して積層材とした。この積層材を圧延して全体
の厚さ０．１ｍｍ、片側のＮｉ層、Ｔｉ層、モネルメタ
ル層の厚さがそれぞれ０．２μｍ、４μｍ、１μｍのシ
ートフープを形成した。次に、これを９９．９９％Ａｒ
ガスフローの連続炉で７５０℃、１分間焼鈍してから所
定の形状に切断し、曲げ加工を行った。この際、曲げＲ
部にクラックは確認されなかった。このようにして所定
の形状に形成した部品材料を９９．９９％Ａｒ雰囲気中
で１１００℃×５分加熱後、空冷した。これにより表面
に約４μｍのＴｉ2 Ｎｉ、Ｔｉ2 Ｃｕ、ＴｉＣｕの金属
間化合物からなる表面硬化層４を有する表面硬化部品を
得た。Example 8 A quench-hardening stainless steel (F
e-10.5Cr-0.5C-0.3Si-0.3M
n) The intermediate layer 6 formed of pure Ni is provided on both surfaces of the base material 1 on both sides thereof, and the inner cladding material 2 formed of pure Ti is provided on the surface of the intermediate layer 6 so as to be provided thereon. An intermediate layer 6 is sandwiched between the material 1 and the inner clad material 2, and a monel metal (Ni-30Cu-
2Fe) were provided in an overlapping manner, and these were joined by clad rolling to obtain a laminated material. The laminated material was rolled to form a sheet hoop having an overall thickness of 0.1 mm and a thickness of one side of the Ni layer, Ti layer, and Monel metal layer of 0.2 μm, 4 μm, and 1 μm, respectively. Next, this was mixed with 99.99% Ar
Annealed at 750 ° C. for 1 minute in a continuous gas flow furnace, cut into a predetermined shape, and bent. At this time, bending R
No crack was found in the part. The component material thus formed into a predetermined shape was heated at 1100 ° C. for 5 minutes in an atmosphere of 99.99% Ar and then air-cooled. Thus, a surface-hardened component having a surface hardened layer 4 of about 4 μm of an intermetallic compound of Ti 2 Ni, Ti 2 Cu, and TiCu was obtained.
【００３１】［実施例９］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−１．２Ｍｏ−０．４Ｃ−０．３Ｓｉ
−０．３Ｍｎ）の基材１の両側の表面に純Ｎｉで形成さ
れる中間層６を重ね合わせて設け、中間層６の表面にＴ
ｉ合金（Ｔｉ−０．２Ｐｄ）で形成される内側クラッド
素材２を重ね合わせて設けて基材１と内側クラッド素材
２の間に中間層６を挟み、内側クラッド素材２の外側に
純Ｆｅで形成される外側クラッド素材３を重ね合わせて
設け、これらをクラッド圧延により接合して積層材とし
た。この積層材を圧延して全体の厚さ０．５ｍｍ、片側
のＮｉ層、Ｔｉ合金層、Ｆｅ層の厚さがそれぞれ０．５
μｍ、７μｍ、４μｍのシートフープを形成した。次
に、これを９９．９９％Ａｒガスフローの連続炉で７５
０℃、５分間焼鈍してから所定の形状に切断し、曲げ加
工を行った。この際、曲げＲ部にクラックは確認されな
かった。このようにして所定の形状に形成した部品材料
を９９．９９％Ａｒ雰囲気中で１０５０℃×５分加熱
後、空冷した。これにより表面に約１０μｍのＴｉＦｅ
とＴｉＦｅ2 の金属間化合物からなる表面硬化層を有す
る表面硬化部品を得た。Example 9 A quench-hardening stainless steel (F
e-13.5Cr-1.2Mo-0.4C-0.3Si
−0.3 Mn), an intermediate layer 6 made of pure Ni is provided on both surfaces of the substrate 1 so as to overlap with each other.
An inner cladding material 2 made of an i-alloy (Ti-0.2Pd) is provided in an overlapping manner, an intermediate layer 6 is sandwiched between the base material 1 and the inner cladding material 2, and pure Fe is applied outside the inner cladding material 2. The outer clad material 3 to be formed was provided in an overlapping manner, and these were joined by clad rolling to form a laminated material. This laminated material was rolled to a total thickness of 0.5 mm, and the thickness of each of the Ni layer, Ti alloy layer and Fe layer on one side was 0.5 mm.
μm, 7 μm, and 4 μm sheet hoops were formed. Next, this was placed in a continuous furnace with a 99.99% Ar gas flow for 75%.
After annealing at 0 ° C. for 5 minutes, it was cut into a predetermined shape and subjected to bending. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was heated in a 99.99% Ar atmosphere at 1050 ° C. for 5 minutes and then air-cooled. As a result, about 10 μm of TiFe
A hardened part having a hardened layer made of an intermetallic compound of TiFe 2 and TiFe 2 was obtained.
【００３２】［実施例１０］ばね鋼（Ｆｅ−２．０Ｓｉ
−０．９Ｍｎ−０．６Ｃ）の基材１の両側の表面に純Ｎ
ｉで形成される中間層６を重ね合わせて設け、中間層６
の表面に純Ｔｉで形成される内側クラッド素材２を重ね
合わせて設けて基材１と内側クラッド素材２の間に中間
層６を挟み、内側クラッド素材２の外側に純Ｆｅで形成
される外側クラッド素材３を重ね合わせて設け、これら
をクラッド圧延により接合して積層材とした。この積層
材を圧延して全体の厚さ０．５ｍｍ、片側のＮｉ層、Ｔ
ｉ層、Ｆｅ層の厚さがそれぞれ２μｍ、６μｍ、４μｍ
のシートフープを形成した。次に、これを９９．９９％
Ａｒガスフローの連続炉で７５０℃、１分間焼鈍してか
ら所定の形状に切断し、曲げ加工を行った。この際、曲
げＲ部にクラックは確認されなかった。このようにして
所定の形状に形成した部品材料を９９．９９％Ａｒ雰囲
気中で１０５０℃×１０分加熱後、空冷した。これによ
り表面に約１０μｍのＴｉＦｅとＴｉＦｅ2 の金属間化
合物からなる表面硬化層４を有する表面硬化部品を得
た。Example 10 Spring steel (Fe-2.0Si)
-0.9Mn-0.6C) on both sides of the substrate 1 with pure N
i, the intermediate layer 6 formed of
An inner cladding material 2 made of pure Ti is superposed on the surface of the substrate 1 and an intermediate layer 6 is sandwiched between the base material 1 and the inner cladding material 2. An outer layer formed of pure Fe is formed outside the inner cladding material 2. The clad material 3 was provided in an overlapping manner, and these were joined by clad rolling to form a laminated material. This laminated material is rolled to a total thickness of 0.5 mm, a Ni layer on one side, and T
The thicknesses of the i layer and the Fe layer are 2 μm, 6 μm, and 4 μm, respectively.
Sheet hoop was formed. Next, this is 99.99%
After annealing at 750 ° C. for 1 minute in a continuous furnace with an Ar gas flow, it was cut into a predetermined shape and bent. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was heated at 1050 ° C. × 10 minutes in an atmosphere of 99.99% Ar and then air-cooled. As a result, a surface hardened component having a surface hardened layer 4 of about 10 μm of an intermetallic compound of TiFe and TiFe 2 was obtained.
【００３３】［実施例１１］炭素鋼（Ｆｅ−０．５５
Ｃ）の基材１の両側の表面に純Ｎｉで形成される中間層
６を重ね合わせて設け、中間層６の表面に純Ｔｉで形成
される内側クラッド素材２を重ね合わせて設けて基材１
と内側クラッド素材２の間に中間層６を挟み、内側クラ
ッド素材２の外側に純Ｆｅを重ね合わせて設け、これら
をクラッド圧延により接合して積層材とした。この積層
材を圧延して全体の厚さ０．５ｍｍ、片側のＮｉ層、Ｔ
ｉ層、Ｆｅ層の厚さがそれぞれ１μｍ、５μｍ、５μｍ
のシートフープを形成した。次に、これを９９．９９％
Ａｒガスフローの連続炉で７９０℃、４分間焼鈍してか
ら所定の形状に切断し、曲げ加工を行った。この際、曲
げＲ部にクラックは確認されなかった。このようにして
所定の形状に形成した部品材料を９９．９９％Ａｒ雰囲
気中で９５０℃×２分加熱後、空冷した。これにより表
面に約１０μｍのＴｉＦｅとＴｉＦｅ2 の金属間化合物
からなる表面硬化層４を有する表面硬化部品を得た。Example 11 Carbon steel (Fe-0.55)
C) An intermediate layer 6 made of pure Ni is provided on both surfaces of the base material 1 in an overlapping manner, and an inner clad material 2 made of pure Ti is provided on the surface of the intermediate layer 6 in an overlapping manner. 1
The intermediate layer 6 was sandwiched between the inner clad material 2 and pure Fe was superposed on the outer surface of the inner clad material 2, and these were joined by clad rolling to form a laminated material. This laminated material is rolled to a total thickness of 0.5 mm, a Ni layer on one side, and T
The thickness of the i layer and the Fe layer is 1 μm, 5 μm, and 5 μm, respectively.
Sheet hoop was formed. Next, this is 99.99%
After annealing at 790 ° C. for 4 minutes in a continuous furnace with an Ar gas flow, it was cut into a predetermined shape and bent. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was heated at 950 ° C. for 2 minutes in an atmosphere of 99.99% Ar and then air-cooled. As a result, a surface hardened component having a surface hardened layer 4 of about 10 μm of an intermetallic compound of TiFe and TiFe 2 was obtained.
【００３４】［実施例１２］焼入硬化型ステンレス鋼
（Ｆｅ−１３．５Ｃｒ−１．２Ｍｏ−０．４Ｃ−０．３
Ｓｉ−０．３Ｍｎ）の基材１の両側の表面に純Ｎｉで形
成される中間層６を重ね合わせて設け、中間層６の表面
に純Ｔｉで形成される内側クラッド素材２を重ね合わせ
て設けて基材１と内側クラッド素材２の間に中間層６を
挟み、内側クラッド素材２の外側に純Ｆｅを重ね合わせ
て設け、これらをクラッド圧延により接合して積層材と
した。この積層材を圧延して全体の厚さが０．２ｍｍ、
片側のＮｉ層、Ｔｉ層、Ｆｅ層の厚さがそれぞれ０．５
μｍ、４μｍ、２μｍのシートフープを形成した。次
に、これを９９．９９％Ａｒガスフローの連続炉で７５
０℃、１分間焼鈍してから所定の形状に切断し、曲げ加
工を行った。この際、曲げＲ部にクラックは確認されな
かった。このようにして所定の形状に形成した部品材料
を９９．９９％Ａｒ雰囲気中で１２５０℃×５分加熱
後、空冷した。これにより表面に約５μｍのＴｉＦｅと
ＴｉＦｅ2 の金属間化合物からなる表面硬化層４を有す
る表面硬化部品を得た。但し、この表面硬化部品の基材
１の靭性がやや落ちる。[Example 12] Quench hardening type stainless steel (Fe-13.5Cr-1.2Mo-0.4C-0.3)
An intermediate layer 6 made of pure Ni is provided on both surfaces of the base material 1 made of Si-0.3Mn), and an inner clad material 2 made of pure Ti is provided on the surface of the intermediate layer 6 by overlapping. The intermediate layer 6 was sandwiched between the base material 1 and the inner clad material 2, pure Fe was superposed on the outer side of the inner clad material 2, and these were joined by clad rolling to form a laminated material. This laminated material is rolled to a total thickness of 0.2 mm,
The thickness of each of the Ni layer, Ti layer and Fe layer on one side is 0.5
μm, 4 μm, and 2 μm sheet hoops were formed. Next, this was placed in a continuous furnace with a 99.99% Ar gas flow for 75%.
After annealing at 0 ° C. for 1 minute, it was cut into a predetermined shape and bent. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was heated in a 99.99% Ar atmosphere at 1250 ° C. for 5 minutes and then air-cooled. As a result, a surface-hardened part having a surface hardened layer 4 of about 5 μm made of an intermetallic compound of TiFe and TiFe 2 was obtained. However, the toughness of the substrate 1 of the surface hardened part is slightly reduced.
【００３５】［実施例１３］焼入硬化型ステンレス鋼
（Ｆｅ−１３．５Ｃｒ−１．２Ｍｏ−０．４Ｃ−０．３
Ｓｉ−０．３Ｍｎ）の基材１の両側の表面に純Ｎｉで形
成される中間層６を重ね合わせて設け、中間層６の表面
に純Ｔｉで形成される内側クラッド素材２を重ね合わせ
て設けて基材１と内側クラッド素材２の間に中間層６を
挟み、内側クラッド素材２の外側に純Ｆｅを重ね合わせ
て設け、これらをクラッド圧延により接合して積層材と
した。この積層材を圧延して全体の厚さ１．０ｍｍ、片
側のＮｉ層、Ｔｉ層、Ｆｅ層の厚さがそれぞれ１μｍ、
６μｍ、４μｍのシートフープを形成した。次に、これ
を９９．９９％Ａｒガスフローの連続炉で７５０℃、５
分間焼鈍してから所定の形に切断し、曲げ加工を行っ
た。この際、曲げＲ部にクラックは確認されなかった。
このようにして形状の得られた部品を９９．９９％Ａｒ
雰囲気中で１０５０℃×１０分加熱後、空冷した。これ
により表面に約９μｍのＴｉＦｅとＴｉＦｅ2 の金属間
化合物からなる表面硬化層４を有する表面硬化部品を得
た。Example 13 A quenching-hardening stainless steel (Fe-13.5Cr-1.2Mo-0.4C-0.3)
An intermediate layer 6 made of pure Ni is provided on both surfaces of the base material 1 made of Si-0.3Mn), and an inner clad material 2 made of pure Ti is provided on the surface of the intermediate layer 6 by overlapping. The intermediate layer 6 was sandwiched between the base material 1 and the inner clad material 2, pure Fe was superposed on the outer side of the inner clad material 2, and these were joined by clad rolling to form a laminated material. This laminated material is rolled to obtain a total thickness of 1.0 mm, and the thickness of one side of the Ni layer, the Ti layer, and the Fe layer is 1 μm, respectively.
6 μm and 4 μm sheet hoops were formed. Next, this was heated in a continuous furnace with a 99.99% Ar gas flow at 750 ° C.
After annealing for a minute, it was cut into a predetermined shape and subjected to bending. At this time, no crack was observed at the bending R portion.
The part having the shape obtained in this way is 99.99% Ar
After heating in an atmosphere at 1050 ° C. for 10 minutes, it was air-cooled. As a result, a surface-hardened component having a surface hardened layer 4 of about 9 μm made of an intermetallic compound of TiFe and TiFe 2 was obtained.
【００３６】［比較例１］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−１．２Ｍｏ−０．４Ｃ−０．３Ｓｉ
−０．３Ｍｎ）の厚さ０．１ｍｍのシートを圧延加工に
より用意し、９９．９９％水素ガスフローの連続炉で８
００℃、２分間焼鈍してから所定の形状に切断し、曲げ
加工を行った。この際、曲げＲ部にクラックは確認され
なかった。このようにして所定の形状に形成した部品材
料をＡｒ：５０％、窒素：５０％の混合ガス雰囲気中で
１０５０℃×１分保持後、空冷した。これにより鋼を基
材とする部品を得た。[Comparative Example 1] Quench hardening type stainless steel (F
e-13.5Cr-1.2Mo-0.4C-0.3Si
-0.3Mn), a sheet having a thickness of 0.1 mm is prepared by rolling, and is subjected to 89.99% in a continuous furnace with a 99.99% hydrogen gas flow.
After annealing at 00 ° C. for 2 minutes, it was cut into a predetermined shape and bent. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was kept at 1050 ° C. for 1 minute in a mixed gas atmosphere of Ar: 50% and nitrogen: 50%, and then air-cooled. As a result, a component having a steel base was obtained.
【００３７】［比較例２］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−１．２Ｍｏ−０．４Ｃ−０．３Ｓｉ
−０．３Ｍｎ）の厚さ０．１ｍｍのシートを圧延加工に
より用意し、９９．９９％水素ガスフローの連続炉で８
００℃、２分間焼鈍してから所定の形状に切断し、曲げ
加工を行った。この際、曲げＲ部にクラックは確認され
なかった。このようにして所定の形状に形成した部品材
料をＡｒ：５０％、窒素：５０％の混合ガス雰囲気中で
１０５０℃×１分保持後、空冷した。この部品にスパッ
タリングで表面にＡｌ2 Ｏ3 をコーティングした。これ
により表面に約０．２μｍのＡｌ2 Ｏ3 の表面硬化層を
有する部品を得た。[Comparative Example 2] Quench hardening type stainless steel (F
e-13.5Cr-1.2Mo-0.4C-0.3Si
-0.3Mn), a sheet having a thickness of 0.1 mm is prepared by rolling, and is subjected to 89.99% in a continuous furnace with a 99.99% hydrogen gas flow.
After annealing at 00 ° C. for 2 minutes, it was cut into a predetermined shape and bent. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was kept at 1050 ° C. for 1 minute in a mixed gas atmosphere of Ar: 50% and nitrogen: 50%, and then air-cooled. The surface of this part was coated with Al 2 O 3 by sputtering. As a result, a component having a surface hardened layer of Al 2 O 3 of about 0.2 μm was obtained.
【００３８】［比較例３］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−０．６Ｃ−０．２Ｍｏ−０．２Ｖ）
の基材１の両側の表面に純Ｔｉをクラッド圧延により接
合して積層材とした。この積層材を圧延して全体の厚さ
０．１ｍｍ、片側のＴｉ層の厚さが４μｍのシートフー
プを形成した。次に、これを９９．９９％Ａｒガスフロ
ーの連続炉で８００℃、２分間焼鈍してから所定の形状
に切断し、曲げ加工を行った。この際、曲げＲ部にクラ
ックが発生した。このようにして所定の形状に形成した
部品材料を９９．９９％Ａｒ雰囲気中で９５０℃×３０
秒加熱後、空冷した。これにより表面に約６μｍのＴｉ
ＦｅとＴｉＦｅ2 の金属間化合物からなる表面硬化層を
有する部品を得た。[Comparative Example 3] Quench hardening type stainless steel (F
e-13.5Cr-0.6C-0.2Mo-0.2V)
Pure Ti was joined to both surfaces of the base material 1 by clad rolling to obtain a laminated material. The laminated material was rolled to form a sheet hoop having a total thickness of 0.1 mm and a thickness of one side of the Ti layer of 4 μm. Next, this was annealed in a continuous furnace with a 99.99% Ar gas flow at 800 ° C. for 2 minutes, cut into a predetermined shape, and bent. At this time, cracks occurred in the bending R portion. The component material formed in a predetermined shape in this manner is placed in a 99.99% Ar atmosphere at 950 ° C. × 30.
After heating for 2 seconds, it was air-cooled. As a result, about 6 μm of Ti
A component having a surface hardened layer made of an intermetallic compound of Fe and TiFe 2 was obtained.
【００３９】［比較例４］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−１．２Ｍｏ−０．４Ｃ−０．３Ｓｉ
−０．３Ｍｎ）の基材１の両側の表面に純Ｎｉで形成さ
れる中間層６を重ね合わせて設け、中間層６の表面に純
Ｔｉで形成される内側クラッド素材２を重ね合わせて設
けて基材１と内側クラッド素材２の間に中間層６を挟
み、内側クラッド素材２の外側に純Ｆｅで形成される外
側クラッド素材３を重ね合わせて設け、これをクラッド
圧延により接合して積層材とした。この積層材を圧延し
て全体の厚さが０．２ｍｍ、片側のＮｉ層、Ｔｉ層、Ｆ
ｅ層の厚さがそれぞれ０．５μｍ、７μｍ、４μｍのシ
ートフープを形成した。次に、これを９９．９９％Ａｒ
ガスフローの連続炉で７５０℃、１分間焼鈍してから所
定の形に切断し、曲げ加工を行った。この際、曲げＲ部
にクラックは確認されなかった。このようにして所定の
形状に形成した部品材料を９９．９９％Ａｒ雰囲気中で
９００℃×１０分加熱後、空冷した。これにより、Ｔｉ
ＦｅとＴｉＦｅ2 の金属間化合物からなる表面硬化層４
がＦｅとＴｉの界面には生成したが、表面には達せず、
表面が軟質の鋼を基材とする部品となり、基材１の硬度
も不足していた。[Comparative Example 4] Quench hardening type stainless steel (F
e-13.5Cr-1.2Mo-0.4C-0.3Si
An intermediate layer 6 made of pure Ni is provided on both surfaces of the base material 1 of −0.3 Mn) in an overlapping manner, and an inner cladding material 2 made of pure Ti is provided on the surface of the intermediate layer 6 in an overlapping manner. The intermediate layer 6 is sandwiched between the base material 1 and the inner clad material 2, and the outer clad material 3 made of pure Fe is provided on the outer side of the inner clad material 2 by laminating and bonding by clad rolling. Material. This laminated material is rolled to have a total thickness of 0.2 mm, a Ni layer on one side, a Ti layer,
Sheet hoops having an e-layer thickness of 0.5 μm, 7 μm, and 4 μm, respectively, were formed. Next, this was mixed with 99.99% Ar
After annealing at 750 ° C. for 1 minute in a continuous gas flow furnace, the resultant was cut into a predetermined shape and bent. At this time, no crack was observed at the bending R portion. The component material thus formed into a predetermined shape was heated in a 99.99% Ar atmosphere at 900 ° C. for 10 minutes and then air-cooled. Thereby, Ti
Surface hardened layer 4 made of an intermetallic compound of Fe and TiFe 2
Was formed at the interface between Fe and Ti, but did not reach the surface.
A component having a soft steel surface as a base material was used, and the hardness of the base material 1 was insufficient.
【００４０】［比較例５］焼入硬化型ステンレス鋼（Ｆ
ｅ−１３．５Ｃｒ−１．２Ｍｏ−０．４Ｃ−０．３Ｓｉ
−０．３Ｍｎ）の基材１の両側の表面に純Ｎｉで形成さ
れる中間層６を重ね合わせて設け、中間層６の表面に純
Ｔｉで形成される内側クラッド素材２を重ね合わせて設
けて基材１と内側クラッド素材２の間に中間層６を挟
み、内側クラッド素材２の外側に純Ｆｅで形成される外
側クラッド素材３を重ね合わせて設け、これらをクラッ
ド圧延により接合して積層材とした。この積層材を圧延
して全体の厚さ０．２ｍｍ、片側のＮｉ層、Ｔｉ層、Ｆ
ｅ層の厚さがそれぞれ０．５μｍ、７μｍ、４μｍのシ
ートフープを形成した。次に、これを９９．９９％Ａｒ
ガスフローの連続炉で７５０℃、１分間焼鈍してから所
定の形状に切断し、曲げ加工を行った。この際、曲げＲ
部にクラックは確認されなかった。このようにして所定
の形状に形成した部品材料を９９．９９％Ａｒ雰囲気中
で１０５０℃×３秒加熱後、空冷した。これにより、Ｔ
ｉＦｅとＴｉＦｅ2 の金属間化合物からなる硬化層がＦ
ｅとＴｉの界面には生成したが、表面には達せず、表面
が軟質の鋼を基材とする部品となり、基材１の硬度も局
所的にしか焼きが入らずに、全体的には不足していた。[Comparative Example 5] Quench hardening type stainless steel (F
e-13.5Cr-1.2Mo-0.4C-0.3Si
An intermediate layer 6 made of pure Ni is provided on both surfaces of the base material 1 of −0.3 Mn) in an overlapping manner, and an inner clad material 2 made of pure Ti is provided on the surface of the intermediate layer 6 in an overlapping manner. The intermediate layer 6 is sandwiched between the base material 1 and the inner clad material 2, and the outer clad material 3 made of pure Fe is provided on the outer side of the inner clad material 2, and these are joined by clad rolling and laminated. Material. This laminated material is rolled to obtain a total thickness of 0.2 mm, a Ni layer on one side, a Ti layer,
Sheet hoops having an e-layer thickness of 0.5 μm, 7 μm, and 4 μm, respectively, were formed. Next, this was mixed with 99.99% Ar
Annealed at 750 ° C. for 1 minute in a continuous gas flow furnace, cut into a predetermined shape, and bent. At this time, bending R
No crack was found in the part. The component material thus formed into a predetermined shape was heated at 1050 ° C. for 3 seconds in an atmosphere of 99.99% Ar and then air-cooled. This gives T
The hardened layer made of the intermetallic compound of iFe and TiFe 2
Although formed at the interface between e and Ti, it did not reach the surface and became a component having a soft surface as a base material, and the hardness of the base material 1 was hardened only locally. I was short.
【００４１】上記実施例１乃至１３及び比較例１乃至５
の諸性能を表１に示す。尚、表１の「素材構成」の欄は
積層材の層の構成及び各層の成分を示し、左側から、外
側クラッド素材３／内側クラッド素材２／中間層６／基
材１の順に並べて記載した。また、表１の「部品構成」
の欄は実施例１乃至１３及び比較例１乃至５の層の構成
及び各層の成分を示し、左側から、表面硬化層４／密着
層５（これは無い場合がある）／基材１の順に並べて記
載した。Examples 1 to 13 and Comparative Examples 1 to 5
Are shown in Table 1. In addition, the column of "material composition" in Table 1 shows the composition of the layers of the laminated material and the components of each layer, and is described in the order of outer clad material 3 / inner clad material 2 / intermediate layer 6 / base material 1 from the left. . Also, “Parts configuration” in Table 1
Column shows the composition of layers and components of each layer of Examples 1 to 13 and Comparative Examples 1 to 5, and from the left side, in the order of the surface hardened layer 4 / the adhesion layer 5 (this may not be present) / the substrate 1 They are listed side by side.
【００４２】[0042]
【表１】 [Table 1]
【００４３】表１から明らかなように、実施例１乃至１
３では、塑性加工の時にクラックが発生せず、表面硬化
層４の厚みが十分に得られ、表面硬化層４と基材１の密
着性が高く、基材１の硬度や表面硬化層の硬度が高くな
った。一方、比較例１では内側クラッド素材２や外側ク
ラッド素材３からなる表面硬化層４が形成されないの
で、表面硬度が低くなり、比較例２ではスパッタリング
で表面硬化層４を形成したので、表面硬化層４の厚みが
薄くなり、基材１と表面硬化層４の密着性が低くなり、
比較例３では外側クラッド素材３を使用しなかったため
に、塑性加工の際にクラックが発生し、比較例４、５で
は塑性加工後の加熱による熱処理が不足したために、基
材１の硬度や表面硬化層４の硬度が低くなった。As is clear from Table 1, Examples 1 to 1
In No. 3, cracks did not occur during plastic working, the thickness of the surface hardened layer 4 was sufficiently obtained, the adhesion between the surface hardened layer 4 and the substrate 1 was high, and the hardness of the substrate 1 and the hardness of the surface hardened layer were high. Became higher. On the other hand, in Comparative Example 1, since the surface hardened layer 4 composed of the inner clad material 2 and the outer clad material 3 was not formed, the surface hardness was low. In Comparative Example 2, the surface hardened layer 4 was formed by sputtering. 4, the adhesiveness between the substrate 1 and the surface hardened layer 4 is reduced,
In Comparative Example 3, cracks were generated during plastic working because the outer clad material 3 was not used. In Comparative Examples 4 and 5, the heat treatment by heating after plastic working was insufficient, and the hardness and surface of the base material 1 were reduced. The hardness of the hardened layer 4 became low.
【００４４】[0044]
【発明の効果】上記のように本発明の請求項１、２、３
に記載の発明は、鋼で形成される基材の表面にＴｉある
いはＴｉ合金で形成される内側クラッド素材を設けると
共に内側クラッド素材の表面にＦｅあるいはＦｅ合金、
またはＣｕあるいはＣｕ合金、またはＮｉあるいはＮｉ
合金で形成される外側クラッド素材を設け、これらをク
ラッド圧延により密着させ、次に、これを厚さ１ｍｍ以
下に圧延すると共にＡｒガスの雰囲気中で焼鈍し、これ
を塑性加工により所定の形状に加工した後、不活性雰囲
気中あるいは還元性雰囲気中で９５０℃以上に５秒以上
加熱したので、塑性加工後の加熱による熱処理によって
基材を焼入れすることができ、剛性を高めるように改善
することができるものである。また塑性加工後の加熱に
よる熱処理によって、外側クラッド素材と内側クラッド
素材の間で相互に拡散が進み、表面にＦｅあるいはＣｕ
あるいはＮｉとＴｉの金属間化合物、つまりＴｉＦｅ、
ＴｉＦｅ2 、Ｔｉ2 Ｃｕ、ＴｉＣｕ、ＴｉＮｉ3 、Ｔｉ
2 Ｎｉなどの金属間化合物を含む表面硬化層を形成する
ことができ、この表面硬化層によって表面硬度が高くな
って耐磨耗性等を高くすることができるものである。さ
らに塑性加工後の加熱による熱処理によって、基材と内
側クラッド素材の間で相互に拡散が進み、表面硬化層と
基材の間にＴｉとＣの金属間化合物、つまりＴｉＣなど
の金属間化合物を含む密着層を形成することができると
共にＴｉ、Ｚｒ、Ｔａ、Ｎｂなどの金属間化合物を含む
密着層を形成することができ、この密着層によって表面
硬化層と基材の密着性を高くすることができると共に表
面硬化層と基材を剥離しにくくすることができるもので
ある。As described above, the first, second and third aspects of the present invention are described.
The invention described in is to provide an inner clad material formed of Ti or Ti alloy on the surface of the base material formed of steel and Fe or Fe alloy on the surface of the inner clad material,
Or Cu or Cu alloy, or Ni or Ni
An outer clad material made of an alloy is provided, and these are brought into close contact with each other by clad rolling. Then, this is rolled to a thickness of 1 mm or less and annealed in an atmosphere of Ar gas, which is formed into a predetermined shape by plastic working. After processing, the substrate was heated to 950 ° C. or more for 5 seconds or more in an inert atmosphere or a reducing atmosphere, so that the base material can be quenched by heat treatment by heating after plastic working, and the rigidity is improved so as to be improved. Can be done. In addition, due to heat treatment by heating after plastic working, the diffusion between the outer clad material and the inner clad material proceeds mutually, and Fe or Cu
Alternatively, an intermetallic compound of Ni and Ti, that is, TiFe,
TiFe 2 , Ti 2 Cu, TiCu, TiNi 3 , Ti
It is possible to form a surface hardened layer containing the intermetallic compound such as 2 Ni, in which it is possible to increase the abrasion resistance and the like becomes high surface hardness by the surface hardening layer. Further, by heat treatment by heating after plastic working, diffusion between the base material and the inner clad material proceeds mutually, and an intermetallic compound of Ti and C, that is, an intermetallic compound such as TiC is interposed between the surface hardened layer and the base material. And an adhesion layer containing an intermetallic compound such as Ti, Zr, Ta, and Nb can be formed, and the adhesion between the surface hardened layer and the substrate can be enhanced by the adhesion layer. And it is possible to make it difficult for the surface hardened layer and the substrate to peel off.
【００４５】また本発明の請求項４に記載の発明は、請
求項１の発明において、基材となる鋼が、１０〜１５重
量％のＣｒと２．５重量％以下のＭｏと０．３５〜１．
２重量％のＣとを含む焼入硬化型ステンレス鋼、あるい
は０．４〜１．０重量％のＣと０．３〜１．０重量％の
Ｍｎとを含むばね鋼、あるいは０．４〜１．２重量％の
Ｃを含む炭素鋼であり、外側クラッド素材と内側クラッ
ド素材の厚みの比が１：１〜１：４の範囲内であり、焼
鈍温度が７００〜８００℃であり、所定の形状に加工し
た後の加熱が９５０〜１１５０℃で１５秒〜１０分であ
るので、剛性を高める効果や、耐磨耗性等を高くする効
果や、表面硬化層と基材の密着性を高くする効果や、表
面硬化層と基材を剥離しにくくする効果を確実に得るこ
とができるものである。According to a fourth aspect of the present invention, in the first aspect of the invention, the steel as a base material comprises 10 to 15% by weight of Cr, 2.5% by weight or less of Mo and 0.35% by weight. ~ 1.
Quench-hardening stainless steel containing 2% by weight of C, or spring steel containing 0.4-1.0% by weight of C and 0.3-1.0% by weight of Mn, or 0.4-1.0% 1.2% by weight of carbon steel, the ratio of the thickness of the outer clad material to the inner clad material is in the range of 1: 1 to 1: 4, the annealing temperature is 700 to 800 ° C, Heating after processing into a shape of 950 to 1150 ° C for 15 seconds to 10 minutes, the effect of increasing the rigidity, the effect of increasing the abrasion resistance, and the adhesion between the surface hardened layer and the substrate The effect of increasing the height and the effect of making the surface hardened layer and the base material difficult to peel off can be reliably obtained.
【００４６】また本発明の請求項５に記載の発明は、請
求項２の発明において、基材となる鋼が、１０〜１５重
量％のＣｒと２．５重量％以下のＭｏと０．３５〜１．
２重量％のＣとを含む焼入硬化型ステンレス鋼、あるい
は０．４〜１．０重量％のＣと０．３〜１．０重量％の
Ｍｎとを含むばね鋼、あるいは０．４〜１．２重量％の
Ｃを含む炭素鋼であり、外側クラッド素材と内側クラッ
ド素材の厚みの比が１：１〜１：５の範囲内であり、焼
鈍温度が７００〜８００℃であり、所定の形状に加工し
た後の加熱が９５０〜１０５０℃で１５秒〜１０分であ
るので、剛性を高める効果や、耐磨耗性等を高くする効
果や、表面硬化層と基材の密着性を高くする効果や、表
面硬化層と基材を剥離しにくくする効果を確実に得るこ
とができるものである。According to a fifth aspect of the present invention, in the second aspect, the steel as a base material is composed of 10 to 15% by weight of Cr, 2.5% by weight or less of Mo and 0.35% by weight. ~ 1.
Quench-hardening stainless steel containing 2% by weight of C, or spring steel containing 0.4-1.0% by weight of C and 0.3-1.0% by weight of Mn, or 0.4-1.0% 1.2% by weight of carbon steel, the ratio of the thickness of the outer clad material to the thickness of the inner clad material is in the range of 1: 1 to 1: 5, and the annealing temperature is 700 to 800 ° C. Heating after processing into a shape of 950 to 1050 ° C. for 15 seconds to 10 minutes, the effect of increasing rigidity, the effect of increasing abrasion resistance, and the adhesion between the surface hardened layer and the substrate The effect of increasing the height and the effect of making the surface hardened layer and the base material difficult to peel off can be reliably obtained.
【００４７】また本発明の請求項６に記載の発明は、請
求項３の発明において、基材となる鋼が、１０〜１５重
量％のＣｒと２．５重量％以下のＭｏと０．３５〜１．
２重量％のＣとを含む焼入硬化型ステンレス鋼、あるい
は０．４〜１．０重量％のＣと０．３〜１．０重量％の
Ｍｎとを含むばね鋼、あるいは０．４〜１．２重量％の
Ｃを含む炭素鋼であり、外側クラッド素材と内側クラッ
ド素材の厚みの比が３：２〜１：４の範囲内であり、焼
鈍温度が７００〜８００℃であり、所定の形状に加工し
た後の加熱が９５０〜１１５０℃で１５秒〜１０分であ
るので、剛性を高める効果や、耐磨耗性等を高くする効
果や、表面硬化層と基材の密着性を高くする効果や、表
面硬化層と基材を剥離しにくくする効果を確実に得るこ
とができるものである。According to a sixth aspect of the present invention, in the third aspect of the invention, the steel as a base material comprises 10 to 15% by weight of Cr, 2.5% by weight or less of Mo and 0.35% by weight. ~ 1.
Quench-hardening stainless steel containing 2% by weight of C, or spring steel containing 0.4-1.0% by weight of C and 0.3-1.0% by weight of Mn, or 0.4-1.0% A carbon steel containing 1.2% by weight of C, a thickness ratio of the outer clad material to the inner clad material being in the range of 3: 2 to 1: 4, an annealing temperature of 700 to 800 ° C, and a predetermined Heating after processing into a shape of 950 to 1150 ° C for 15 seconds to 10 minutes, the effect of increasing the rigidity, the effect of increasing the abrasion resistance, and the adhesion between the surface hardened layer and the substrate The effect of increasing the height and the effect of making the surface hardened layer and the base material difficult to peel off can be reliably obtained.
【図１】本発明の実施の形態の一例を示す一部の断面図
である。FIG. 1 is a partial cross-sectional view illustrating an example of an embodiment of the present invention.
【図２】同上の積層材を示す一部の断面図である。FIG. 2 is a partial cross-sectional view showing the laminated material according to the first embodiment.
【図３】同上の他の実施の形態の一例を示す一部の断面
図である。FIG. 3 is a partial cross-sectional view showing an example of another embodiment of the above.
【図４】同上の他の積層材を示す一部の断面図である。FIG. 4 is a partial cross-sectional view showing another laminated material according to the first embodiment.
１ 基材 ２ 内側クラッド素材 ３ 外側クラッド素材 1 Base material 2 Inner clad material 3 Outer clad material
Claims (6)
はＴｉ合金で形成される内側クラッド素材を設けると共
に内側クラッド素材の表面にＦｅあるいはＦｅ合金で形
成される外側クラッド素材を設け、これらをクラッド圧
延により密着させ、次に、これを厚さ１ｍｍ以下に圧延
すると共にＡｒガスの雰囲気中で焼鈍し、これを塑性加
工により所定の形状に加工した後、不活性雰囲気中ある
いは還元性雰囲気中で９５０℃以上に５秒以上加熱する
ことを特徴とする表面硬化部品の製造方法。An inner clad material formed of Ti or a Ti alloy is provided on a surface of a base material formed of steel, and an outer clad material formed of Fe or an Fe alloy is provided on a surface of the inner clad material. Then, it is rolled to a thickness of 1 mm or less, annealed in an atmosphere of Ar gas, processed into a predetermined shape by plastic working, and then placed in an inert atmosphere or a reducing atmosphere. A method for producing a surface-hardened component, wherein the component is heated to 950 ° C. or more for 5 seconds or more.
はＴｉ合金で形成される内側クラッド素材を設けると共
に内側クラッド素材の表面にＣｕあるいはＣｕ合金で形
成される外側クラッド素材を設け、これらをクラッド圧
延により密着させ、次に、これを厚さ１ｍｍ以下に圧延
すると共にＡｒガスの雰囲気中で焼鈍し、これを塑性加
工により所定の形状に加工した後、不活性雰囲気中ある
いは還元性雰囲気中で９５０℃以上に５秒以上加熱する
ことを特徴とする表面硬化部品の製造方法。2. An inner clad material made of Ti or Ti alloy is provided on a surface of a base material made of steel, and an outer clad material made of Cu or Cu alloy is provided on a surface of the inner clad material. Then, it is rolled to a thickness of 1 mm or less, annealed in an atmosphere of Ar gas, processed into a predetermined shape by plastic working, and then placed in an inert atmosphere or a reducing atmosphere. A method for producing a surface-hardened component, wherein the component is heated to 950 ° C. or more for 5 seconds or more.
はＴｉ合金で形成される内側クラッド素材を設けると共
に内側クラッド素材の表面にＮｉあるいはＮｉ合金で形
成される外側クラッド素材を設け、これらをクラッド圧
延により密着させ、次に、これを厚さ１ｍｍ以下に圧延
すると共にＡｒガスの雰囲気中で焼鈍し、これを塑性加
工により所定の形状に加工した後、不活性雰囲気中ある
いは還元性雰囲気中で９５０℃以上に５秒以上加熱する
ことを特徴とする表面硬化部品の製造方法。3. An inner clad material made of Ti or a Ti alloy is provided on a surface of a base material made of steel, and an outer clad material made of Ni or a Ni alloy is provided on a surface of the inner clad material. Then, it is rolled to a thickness of 1 mm or less, annealed in an atmosphere of Ar gas, processed into a predetermined shape by plastic working, and then placed in an inert atmosphere or a reducing atmosphere. A method for producing a surface-hardened component, wherein the component is heated to 950 ° C. or more for 5 seconds or more.
ｒと２．５重量％以下のＭｏと０．３５〜１．２重量％
のＣとを含む焼入硬化型ステンレス鋼、あるいは０．４
〜１．０重量％のＣと０．３〜１．０重量％のＭｎとを
含むばね鋼、あるいは０．４〜１．２重量％のＣを含む
炭素鋼であり、外側クラッド素材と内側クラッド素材の
厚みの比が１：１〜１：４の範囲内であり、焼鈍温度が
７００〜８００℃であり、所定の形状に加工した後の加
熱が９５０〜１１５０℃で１５秒〜１０分であることを
特徴とする請求項１に記載の表面硬化部品の製造方法。4. The steel as a base material has a carbon content of 10 to 15% by weight.
r and up to 2.5% by weight of Mo and 0.35 to 1.2% by weight
Hardened stainless steel containing C and 0.4 or 0.4
A spring steel containing 1.0% by weight of C and 0.3% to 1.0% by weight of Mn, or a carbon steel containing 0.4% to 1.2% by weight of C; The thickness ratio of the clad material is in the range of 1: 1 to 1: 4, the annealing temperature is 700 to 800 ° C, and the heating after processing into a predetermined shape is 950 to 1150 ° C for 15 seconds to 10 minutes. The method for producing a surface-hardened component according to claim 1, wherein:
ｒと２．５重量％以下のＭｏと０．３５〜１．２重量％
のＣとを含む焼入硬化型ステンレス鋼、あるいは０．４
〜１．０重量％のＣと０．３〜１．０重量％のＭｎとを
含むばね鋼、あるいは０．４〜１．２重量％のＣを含む
炭素鋼であり、外側クラッド素材と内側クラッド素材の
厚みの比が１：１〜１：５の範囲内であり、焼鈍温度が
７００〜８００℃であり、所定の形状に加工した後の加
熱が９５０〜１０５０℃で１５秒〜１０分であることを
特徴とする請求項２に記載の表面硬化部品の製造方法。5. The steel as a base material has a C content of 10 to 15% by weight.
r and up to 2.5% by weight of Mo and 0.35 to 1.2% by weight
Hardened stainless steel containing C and 0.4 or 0.4
A spring steel containing 1.0% by weight of C and 0.3% to 1.0% by weight of Mn, or a carbon steel containing 0.4% to 1.2% by weight of C; The thickness ratio of the clad material is in the range of 1: 1 to 1: 5, the annealing temperature is 700 to 800 ° C, and the heating after processing into a predetermined shape is 950 to 1050 ° C for 15 seconds to 10 minutes. The method for producing a surface-hardened component according to claim 2, wherein:
ｒと２．５重量％以下のＭｏと０．３５〜１．２重量％
のＣとを含む焼入硬化型ステンレス鋼、あるいは０．４
〜１．０重量％のＣと０．３〜１．０重量％のＭｎとを
含むばね鋼、あるいは０．４〜１．２重量％のＣを含む
炭素鋼であり、外側クラッド素材と内側クラッド素材の
厚みの比が３：２〜１：４の範囲内であり、焼鈍温度が
７００〜８００℃であり、所定の形状に加工した後の加
熱が９５０〜１１５０℃で１５秒〜１０分であることを
特徴とする請求項３に記載の表面硬化部品の製造方法。6. The steel as a base material contains 10 to 15% by weight of C.
r and up to 2.5% by weight of Mo and 0.35 to 1.2% by weight
Hardened stainless steel containing C and 0.4 or 0.4
A spring steel containing 1.0% by weight of C and 0.3% to 1.0% by weight of Mn, or a carbon steel containing 0.4% to 1.2% by weight of C; The thickness ratio of the clad material is in the range of 3: 2 to 1: 4, the annealing temperature is 700 to 800 ° C, and the heating after processing into a predetermined shape is 950 to 1150 ° C for 15 seconds to 10 minutes. The method for manufacturing a surface-hardened component according to claim 3, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04157498A JP3551749B2 (en) | 1998-02-24 | 1998-02-24 | Manufacturing method of surface hardened parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04157498A JP3551749B2 (en) | 1998-02-24 | 1998-02-24 | Manufacturing method of surface hardened parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11236661A true JPH11236661A (en) | 1999-08-31 |
| JP3551749B2 JP3551749B2 (en) | 2004-08-11 |
Family
ID=12612224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04157498A Expired - Fee Related JP3551749B2 (en) | 1998-02-24 | 1998-02-24 | Manufacturing method of surface hardened parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3551749B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002059319A (en) * | 2000-08-22 | 2002-02-26 | Marusho Kogyo Kk | Method of manufacturing blade body, blade body, and cutting tool |
| CN1297366C (en) * | 2004-08-11 | 2007-01-31 | 高文辉 | Flux powder high-speed steel cutting edge welding method |
-
1998
- 1998-02-24 JP JP04157498A patent/JP3551749B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002059319A (en) * | 2000-08-22 | 2002-02-26 | Marusho Kogyo Kk | Method of manufacturing blade body, blade body, and cutting tool |
| CN1297366C (en) * | 2004-08-11 | 2007-01-31 | 高文辉 | Flux powder high-speed steel cutting edge welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3551749B2 (en) | 2004-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5390104B2 (en) | Method for coating steel strip and steel strip with said coating | |
| JP6813133B2 (en) | Manufacturing method of aluminum-plated steel sheet, hot stamping member and hot stamping member | |
| US6194088B1 (en) | Stainless steel coated with intermetallic compound and process for producing the same | |
| JP6515359B2 (en) | Titanium composite material and titanium material for hot rolling | |
| TWI627285B (en) | Titanium composite and titanium for hot rolling | |
| JPS59182952A (en) | Case hardening steel | |
| JP3551749B2 (en) | Manufacturing method of surface hardened parts | |
| JP6787428B2 (en) | Titanium material for hot rolling | |
| JPH0726192B2 (en) | Manufacturing method of high Al content stainless steel plate | |
| JP3017237B2 (en) | Method for producing Fe-Si-Al alloy soft magnetic thin plate | |
| JP2555821B2 (en) | Method for producing hot dip galvanized steel sheet | |
| JPH09104962A (en) | Ferrous alloy member having iron-aluminum diffused layer and its production | |
| TWI626093B (en) | Titanium composite and titanium for hot rolling | |
| JP3017236B2 (en) | Method for producing Fe-Al alloy soft magnetic sheet having excellent magnetic properties | |
| JP6086178B1 (en) | Titanium material for hot rolling | |
| JPH0353077B2 (en) | ||
| JPH03199343A (en) | Cold rolled steel sheet for press working having extremely good chemical conversion treatability, weldability, punchability and slidability | |
| JP2681395B2 (en) | Manufacturing method of composite type damping steel sheet | |
| JP6848991B2 (en) | Titanium material for hot rolling | |
| WO2020255563A1 (en) | Aluminum-based plated stainless steel sheet, and method for manufacturing ferritic stainless steel sheet | |
| JP2818675B2 (en) | Manufacturing method of surface-conditioned cold-rolled steel sheet | |
| JP2649590B2 (en) | Manufacturing method of Fe-Al alloy thin plate | |
| JPH0480746B2 (en) | ||
| KR20100064503A (en) | Manufacturing method of high manganese hot-dip galvanized steel sheet having excellent coatability | |
| JPS63203288A (en) | Ti clad steel and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20031225 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040106 |
|
| A521 | Written amendment |
Effective date: 20040308 Free format text: JAPANESE INTERMEDIATE CODE: A523 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040406 |
|
| A61 | First payment of annual fees (during grant procedure) |
Effective date: 20040419 Free format text: JAPANESE INTERMEDIATE CODE: A61 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 4 Free format text: PAYMENT UNTIL: 20080514 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090514 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090514 Year of fee payment: 5 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 5 Free format text: PAYMENT UNTIL: 20090514 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100514 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 6 Free format text: PAYMENT UNTIL: 20100514 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110514 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120514 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 8 Free format text: PAYMENT UNTIL: 20120514 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20130514 |
|
| LAPS | Cancellation because of no payment of annual fees |