JP5541575B2 - 温間鍛造用ステンレス鋼線材およびその塑性加工方法 - Google Patents
温間鍛造用ステンレス鋼線材およびその塑性加工方法 Download PDFInfo
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
- B21C9/005—Cold application of the lubricant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J3/00—Lubricating during forging or pressing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Forging (AREA)
- Metal Extraction Processes (AREA)
- Heat Treatment Of Steel (AREA)
- Lubricants (AREA)
Description
また、温間鍛造用の潤滑剤として、高塩基性アルカリ土類金属有機酸塩分散型の潤滑材をポンプで金型に供給することが提案されている。また従来使用されている潤滑剤として黒鉛系油分散型があることが記載されている。(特許文献2)
但し、該加熱方式や潤滑剤の塗布方式では、線材や鋼線を連続的に加熱してヘッダー加工,パーツフォーマ加工することが困難であり、生産性に劣るという欠点があった。
誘導加熱により加熱しているため潤滑剤の種類に依存することなく、スパークの発生を防止して安定的に加熱できる一方で、誘導加熱は設備費が高いという欠点があった。
(2)非磁性部品製造用のオーステナイト系ステンレス鋼線材であって、下記の(a)式で示されるM値が−80〜100であることを特徴とする前記(1)に記載の温間鍛造用ステンレス鋼線材である。
M=551−462(C+N)―9.2Si―8.1Mn
−29(Ni+Cu)−13.7Cr―18.5Mo ・・・・・・・(a)
ここで、C、N、Si、Mn、Ni、Cu、Cr、Moは上記温間鍛造用ステンレス鋼線材中の各成分の含有量(質量%)を表す。
(3)高強度部品製造用のオーステナイト系ステンレス鋼線材であって、常温での引張強さが700〜1200N/mm2であることを特徴とする前記(1)または(2)に記載の温間鍛造用ステンレス鋼線材である。
(4)切削加工性も良好なオーステナイト系ステンレス鋼線材であって、質量%でSを0.02%以上0.40%以下含有することを特徴とする前記(1)〜(3)のいずれか一項に記載の温間鍛造用ステンレス鋼線材である。
(5)前記潤滑被膜が含有するグラファイトの平均粒径が10μm以下であることを特徴とする前記(1)〜(4)のいずれか一項に記載の温間鍛造用ステンレス鋼線材である。
(6)前記潤滑被膜中に、更にMoS2を含有することを特徴とする前記(1)〜(5)のいずれか一項に記載の温間鍛造用ステンレス鋼線材である。
(7)前記潤滑被膜の付着量が0.1〜30g/m2であることを特徴とする前記(1)〜(6)のいずれか一項に記載の温間鍛造用ステンレス鋼線材である。
(8)ステンレス鋼線材にグラファイトを含有する潤滑剤を塗布した後、3〜40%の減面率で冷間伸線加工することを特徴とする前記(1)〜(7)のいずれか一項に記載の温間鍛造用ステンレス鋼線材の製造方法である。
(9)グラファイトを10質量%以上含有する潤滑剤を充填した伸線ダイスを用いることを特徴とする前記(1)〜(7)のいずれか一項に記載のいずれかの温間鍛造用ステンレス鋼線材の製造方法である。
(10)前記(1)〜(7)のいずれかのいずれか一項に記載の温間鍛造用ステンレス鋼線材を通電加熱により50〜600℃に加熱し、引き続き温間鍛造加工を行うことを特徴とする温間鍛造用ステンレス鋼線材の塑性加工方法である。
する。本発明に用いる水溶性無機塩としては、ホウ酸塩、モリブデン酸塩、タングステン酸塩、りん酸塩、バナジン酸塩、硫酸塩などが挙げられる。被膜中の水溶性無機塩の配合量は90質量%以下が好ましい。水溶性無機塩の比率が高いと、被膜の耐熱性は高くなるが滑剤の比率が下がるため摩擦係数が高くなる。
M=551−462(C+N)−9.2Si−8.1Mn−29(Ni+Cu)−
13.7Cr―18.5Mo ・・・・・・・・・・・・・・(a)
ここに、C,N,Mn,Ni,Cu,Cr,Moは各成分の質量%を示す。
部85%の平頭への据え込み加工と、減面率30%の軸絞り加工を100本/分の加工速度で1000本加工を実施した。供試材の試験条件を表2に示す。
Claims (10)
- グラファイトを含有する潤滑被膜を表面に有し、前記潤滑被膜の300℃における摩擦係数が0.3以下であり、且つ体積抵抗率が1×10-4Ω・m以下であることを特徴とする温間鍛造用ステンレス鋼線材。
- 非磁性部品製造用のオーステナイト系ステンレス鋼線材であって、下記の(a)式で示されるM値が−80〜100であることを特徴とする請求項1に記載の温間鍛造用ステンレス鋼線材。
M=551−462(C+N)―9.2Si―8.1Mn
−29(Ni+Cu)−13.7Cr―18.5Mo ・・・・・・・(a)
ここで、C、N、Si、Mn、Ni、Cu、Cr、Moは上記温間鍛造用ステンレス鋼線材中の各成分の含有量(質量%)を表す。 - 高強度部品製造用のオーステナイト系ステンレス鋼線材であって、常温での引張強さが700〜1200N/mm2であることを特徴とする請求項1または2に記載の温間鍛造用ステンレス鋼線材。
- 切削加工性も良好なオーステナイト系ステンレス鋼線材であって、質量%でSを0.03%以上0.40%以下含有することを特徴とする請求項1乃至3のいずれか一項に記載の温間鍛造用ステンレス鋼線材。
- 前記潤滑被膜が含有するグラファイトの平均粒径が10μm以下であることを特徴とする請求項1乃至4のいずれか一項に記載の温間鍛造用ステンレス鋼線材。
- 前記潤滑被膜中に、更にMoS2を含有することを特徴とする請求項1乃至5のいずれか一項に記載の温間鍛造用ステンレス鋼線材。
- 前記潤滑被膜の付着量が0.1〜30g/m2であることを特徴とする請求項1乃至6のいずれか一項に記載の温間鍛造用ステンレス鋼線材。
- ステンレス鋼線材にグラファイトを含有する潤滑剤を塗布した後、3〜40%の減面率で冷間伸線加工することを特徴とする請求項1乃至7のいずれか一項に記載の温間鍛造用ステンレス鋼線材の製造方法。
- グラファイトを10質量%含有する潤滑剤を充填した伸線ダイスを用いることを特徴とする請求項1乃至7のいずれか一項に記載の温間鍛造用ステンレス鋼線材の製造方法。
- 請求項1乃至7のいずれか一項に記載の温間鍛造用ステンレス鋼線材を通電加熱により50〜600℃に加熱し、引き続き温間鍛造加工を行うことを特徴とする温間鍛造用ステンレス鋼線材の塑性加工方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010061723A JP5541575B2 (ja) | 2010-03-18 | 2010-03-18 | 温間鍛造用ステンレス鋼線材およびその塑性加工方法 |
MYPI2012700626A MY153905A (en) | 2010-03-18 | 2011-03-16 | Stainless steel wire rod for warm forging use and method of production and plastic working method of same |
CN201180014491.XA CN102802832B (zh) | 2010-03-18 | 2011-03-16 | 中温锻造用不锈钢线材及其制造方法和塑性加工方法 |
PCT/JP2011/057065 WO2011115298A1 (ja) | 2010-03-18 | 2011-03-16 | 温間鍛造用ステンレス鋼線材並びにその製造方法及び塑性加工方法 |
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JP2010201496A (ja) * | 2009-03-06 | 2010-09-16 | Nippon Steel & Sumikin Stainless Steel Corp | 温間鍛造用ステンレス鋼線材および塑性加工方法 |
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JP2011194416A (ja) | 2011-10-06 |
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