JP5618433B2 - 湿式多板クラッチ用クラッチプレートおよびその製造方法 - Google Patents
湿式多板クラッチ用クラッチプレートおよびその製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 66
- 239000010959 steel Substances 0.000 claims description 66
- 239000010960 cold rolled steel Substances 0.000 claims description 39
- 229910052720 vanadium Inorganic materials 0.000 claims description 28
- 229910052758 niobium Inorganic materials 0.000 claims description 26
- 229910052719 titanium Inorganic materials 0.000 claims description 24
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- 229910052804 chromium Inorganic materials 0.000 claims description 16
- 238000005097 cold rolling Methods 0.000 claims description 16
- 229910052759 nickel Inorganic materials 0.000 claims description 15
- 229910052796 boron Inorganic materials 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 9
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- 239000000203 mixture Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
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- 238000000034 method Methods 0.000 description 21
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
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- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- -1 S55C is used Chemical compound 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
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- 238000002844 melting Methods 0.000 description 1
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- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
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- 238000001556 precipitation Methods 0.000 description 1
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- 230000001629 suppression Effects 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
- F16D13/648—Clutch-plates; Clutch-lamellae for clutches with multiple lamellae
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
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- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
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- C—CHEMISTRY; METALLURGY
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- 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
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- C21D8/0226—Hot rolling
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- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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Description
Claims (5)
- 鋼板にて形成された湿式多板クラッチ用クラッチプレートであって、
鋼板は、質量%で、C:0.03〜0.08%、Si:0〜1.0%、Mn:0.2〜0.8%、P:0.03%以下、S:0.01%以下およびAl:0.05%以下を(1)式を満たすように含有し、かつ、Nb:0.03〜0.4%、V:0.01〜0.3%およびTi:0.01〜0.3%のうちの少なくとも1種を(2)式を満たすように含有し、残部がFeおよび不可避的不純物からなる化学成分で構成され、
鋼板中の析出物であるNb、VおよびTiのうちのいずれかを含む炭化物の平均粒径は、20〜100nmであり、
鋼板の断面硬さは、200HV以上350HVである
ことを特徴とする湿式多板クラッチ用クラッチプレート。
5×C%−Si%+Mn%−1.5×Al%<1・・・(1)
0.04<(Nb%÷1.4)+(V%÷1.1)+Ti%<0.3・・・(2) - 鋼板は、質量%で、Cr:0.10〜2.0%、Ni:0.05〜0.5%、Mo:0.05〜0.5%およびB:0.0002〜0.002%の少なくとも1種を(3)式を満たすように含有する化学成分で構成される
ことを特徴とする請求項1記載の湿式多板クラッチ用クラッチプレート。
5×C%−Si%+Mn%+1.6×Cr%+0.8×Ni%−1.5×Al%<1・・・(3) - 鋼板表面から少なくとも200μmまでの表層部における析出物であるNb、VおよびTiのうちのいずれかを含む炭化物の平均粒径が20〜100nmである
ことを特徴とする請求項1または2記載の湿式多板クラッチ用クラッチプレート。 - 請求項1または2記載の化学成分の鋼スラブを溶製し、
この鋼スラブを1200℃以上に加熱し熱間圧延して熱延鋼板とし、
この熱延鋼板を500〜700℃で巻き取って熱延コイルとし、
この熱延コイルを断面硬さ200〜350HVの鋼板とし、
この鋼板を所定の形状に成形する
ことを特徴とする湿式多板クラッチ用クラッチプレートの製造方法。 - 熱延コイルを冷間圧延するか、または、熱延コイルを焼鈍および冷間圧延することにより、断面硬さが200〜350HVである冷延鋼板とし、
この冷延鋼板を所定の形状に成形する
ことを特徴とする請求項4記載の湿式多板クラッチ用クラッチプレートの製造方法。
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