JP2016117925A5 - - Google Patents
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- JP2016117925A5 JP2016117925A5 JP2014256918A JP2014256918A JP2016117925A5 JP 2016117925 A5 JP2016117925 A5 JP 2016117925A5 JP 2014256918 A JP2014256918 A JP 2014256918A JP 2014256918 A JP2014256918 A JP 2014256918A JP 2016117925 A5 JP2016117925 A5 JP 2016117925A5
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- Japan
- Prior art keywords
- less
- following formula
- mass
- martensite
- disc brake
- Prior art date
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- 229910000734 martensite Inorganic materials 0.000 claims description 16
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 229910000529 magnetic ferrite Inorganic materials 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims 3
- 239000000956 alloy Substances 0.000 claims 3
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims 3
- 230000001131 transforming Effects 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Description
本発明の課題は、マルテンサイト組織、あるいはマルテンサイト相とフェライト相の混
合組織からなるステンレス鋼板により製造された４輪用ディスクブレーキロータ、あるい
は
下式（１）で定義されるＡＣが５００以上、かつ下式（２）で定義されるＭＦが４０以
上であることを特徴とする請求項１に記載のステンレス鋼板により製造された４輪用ディ
スクブレーキロータ
ＡＣ＝３５Ｃｒ＋７５Ｓｉ＋６０Ｍｏ＋１７０Ｎｂ＋６２０Ｔｉ＋７５０Ａl−２５０
Ｃ−２８０Ｎ−１２０Ｎｉ−７０Ｍｎ−２０Ｃｕ＋５００‥(１)
ＭＦ=４８０−４７４Ｃ−４０８Ｃ＋６１Ｎｂ−１７Ｃｒ−３３Ｍｎ−２１Ｍｏ−
１７Ｎｉ−３９Ｖ ‥(２)
あるいは質量％で、Ｃ ：０.４％以下、Ｓｉ：０.３０％〜３.００％、Ｍｎ：０.２％
〜４.０％、Ｎｉ：０.１％〜４.０％
Ｃｒ：８％〜２０％、Ｎ ：０.３０％以下、Ｍｏ：０.５０％以下、Ｃｕ：０.５０％以下
を含有し、残部がＦｅ及び不可避的不純物からなり、かつマルテンサイト組織、あるいは
マルテンサイト相とフェライト相の混合組織からなり、かつ下式(１)で定義されるＡＣが
５００以上、かつ下式(２)で定義されるＭＦが４０以上であることを特徴とするステンレ
ス鋼板により製造された４輪用ディスクブレーキロータ。
ＡＣ＝３５Ｃｒ＋７５Ｓｉ＋６０Ｍｏ＋１７０Ｎｂ＋６２０Ｔｉ＋７５０Ａl−２５０
Ｃ−２８０Ｎ−１２０Ｎｉ−７０Ｍｎ−２０Ｃｕ＋５００‥・(１)
ＭＦ=４８０−４７４Ｃ−４０８Ｃ＋６１Ｎｂ−１７Ｃｒ−３３Ｍｎ−２１Ｍｏ−１
７Ｎｉ−３９Ｖ・・・（２）
あるいは、質量％で、Ｃ ：０.４％以下、Ｓｉ：０.３０％〜３.００％、Ｍｎ：０.２
％〜４.０％、Ｎｉ：０.１％〜４.０％、Ｃｒ：８％〜２０％、Ｎ ：０.３０％以下、Ｍ
ｏ：０.５０％以下、Ｃｕ：０.５０％以下を含有し、さらにＢを０.０１０％以下あるい
は、Ｔｉ，Ｎｂ，Ｖ，Ｚｒのうち、１種または２種以上をそれぞれ０.０１〜０.２％以下
含有し残部がＦｅ及び不可避的不純物からなり、かつマルテンサイト組織、あるいはマル
テンサイト相とフェライト相の混合組織からなり、
かつ下式(１)で定義されるＡＣが５００以上、かつ下式(２)で定義されるＭＦが４０以上
であることを特徴とするステンレス鋼板により製造された４輪用ディスクブレーキロータ
。
ＡＣ＝３５Ｃｒ＋７５Ｓｉ＋６０Ｍｏ＋１７０Ｎｂ＋６２０Ｔｉ＋７５０Ａl−２５０
Ｃ−２８０Ｎ−１２０Ｎｉ−７０Ｍｎ−２０Ｃｕ＋５００‥(１)
ＭＦ=４８０−４７４Ｃ−４０８Ｃ＋６１Ｎｂ−１７Ｃｒ−３３Ｍｎ−２１Ｍｏ−
１７Ｎｉ−３９Ｖ・・・(２)
あるいは、上記（１）式で計算されるＡＣ温度以上に加熱し、その後プレス成形を施し
、上記(２)式で計算されるＭＦ温度にまで冷却することを特徴とする４輪用ディスクブレ
ーキロータの製造方法により達成される。
An object of the present invention is to provide a four-wheel disc brake rotor manufactured from a stainless steel plate having a martensite structure or a mixed structure of a martensite phase and a ferrite phase, or an AC defined by the following formula (1) of 500 or more, The MF defined by the following formula (2) is 40 or more, and the disc brake rotor for four wheels manufactured by the stainless steel plate according to claim 1 AC = 35Cr + 75Si + 60Mo + 170Nb + 620Ti + 750Al−250
C-280N-120Ni-70Mn-20Cu + 500 (1)
MF = 480-474C - 408C + 61Nb-17Cr-33Mn-21Mo-
17Ni-39V (2)
Alternatively, by mass%, C: 0.4% or less, Si: 0.30% to 3.00%, Mn: 0.2%
~ 4.0%, Ni: 0.1% ~ 4.0%
Cr: 8% to 20%, N: 0.30% or less, Mo: 0.50% or less, Cu: 0.50% or less, with the balance consisting of Fe and inevitable impurities, and a martensite structure, Alternatively, a stainless steel comprising a mixed structure of martensite phase and ferrite phase, AC defined by the following formula (1) being 500 or more, and MF defined by the following formula (2) being 40 or more. A four-wheel disc brake rotor made of steel.
AC = 35Cr + 75Si + 60Mo + 170Nb + 620Ti + 750Al−250
C-280N-120Ni-70Mn-20Cu + 500 (1)
MF = 480-474C - 408C + 61Nb-17Cr-33Mn-21Mo-1
7Ni-39V (2)
Alternatively, by mass%, C: 0.4% or less, Si: 0.30% to 3.00%, Mn: 0.2
% To 4.0%, Ni: 0.1% to 4.0%, Cr: 8% to 20%, N: 0.30% or less, M
o: not more than 0.50%, Cu: not more than 0.50%, and further B not more than 0.010%, or one or more of Ti, Nb, V and Zr are each 0.01 ~ 0.2% or less, the balance being Fe and inevitable impurities, and a martensite structure, or a mixed structure of martensite and ferrite phases,
A four-wheel disc brake rotor manufactured from a stainless steel plate, wherein the AC defined by the following formula (1) is 500 or more and the MF defined by the following formula (2) is 40 or more.
AC = 35Cr + 75Si + 60Mo + 170Nb + 620Ti + 750Al−250
C-280N-120Ni-70Mn-20Cu + 500 (1)
MF = 480-474C - 408C + 61Nb-17Cr-33Mn-21Mo-
17Ni-39V (2)
Alternatively, the four-wheel disc brake rotor is characterized in that it is heated to an AC temperature or higher calculated by the above equation (1), then press-molded, and cooled to the MF temperature calculated by the above (2) equation. This is achieved by the manufacturing method.
またホットプレスは素材加熱後、高温でプレス成形した後に金型による抜熱で急冷して
マルテンサイト組織を得る。しかし、室温でマルテンサイト変態が終了しないとオ−ステ
ナイト相が残留してしまい高強度が得られない。本発明の範囲では下式(２)で計算される
温度でマルテンサイト変態が完了する。したがって室温でマルテンサイト変態を完了させ
高強度を得るためにＭＦ４０以上で規定した。
ＭＦ=４８０−４７４Ｃ−４０８Ｃ＋６１Ｎｂ−１７Ｃｒ−３３Ｍｎ−２１Ｍｏ−１
７Ｎｉ−３９Ｖ ・・・（２）
In the hot press, the material is heated, press-molded at a high temperature, and then rapidly cooled by heat removal by a mold to obtain a martensite structure. However, if the martensitic transformation is not completed at room temperature, the austenite phase remains and high strength cannot be obtained. Within the scope of the present invention, the martensitic transformation is completed at the temperature calculated by the following formula (2). Therefore, in order to complete the martensitic transformation at room temperature and obtain high strength, it was specified at MF40 or more.
MF = 480-474C - 408C + 61Nb-17Cr-33Mn-21Mo-1
7Ni-39V (2)
Claims (5)
ンレス鋼板により製造された４輪用ディスクブレーキロータ。 A four-wheel disc brake rotor manufactured from a stainless steel plate having a martensite structure or a mixed structure of a martensite phase and a ferrite phase.
上である、請求項１に記載のステンレス鋼板により製造された４輪用ディスクブレーキロ
ータ。
ＡＣ＝３５Ｃｒ＋７５Ｓｉ＋６０Ｍｏ＋１７０Ｎｂ＋６２０Ｔｉ＋７５０Ａl−２５０
Ｃ−２８０Ｎ−１２０Ｎｉ−７０Ｍｎ−２０Ｃｕ＋５０・・・(１)
ＭＦ＝４８０−４７４Ｃ−４０８Ｃ＋６１Ｎｂ−１７Ｃｒ−３３Ｍｎ−２１Ｍｏ
−１７Ｎｉ−３９Ｖ・・・(２)
ただし、各元素記号はそれぞれ合金元素としての含有量（質量％）である。 The disc brake rotor for four wheels manufactured by the stainless steel plate according to claim 1, wherein the AC defined by the following formula (1) is 500 or more and the MF defined by the following formula (2) is 40 or more.
AC = 35Cr + 75Si + 60Mo + 170Nb + 620Ti + 750Al−250
C-280N-120Ni-70Mn-20Cu + 50 (1)
MF = 480-474C - 408C + 61Nb-17Cr-33Mn-21Mo
-17Ni-39V (2)
However, each element symbol is a content (mass%) as an alloy element.
Ｃ ：０.４％以下
Ｓｉ：０.３０％〜３.００％
Ｍｎ：０.２％〜４.０％
Ｎｉ：０.１％〜４.０％
Ｃｒ：８％〜２０％
Ｎ ：０.３０％以下
Ｍｏ：０.５０％以下
Ｃｕ：０.５０％以下
を含有し、残部がＦｅ及び不可避的不純物からなり、かつマルテンサイト組織、あるいは
マルテンサイト相とフェライト相の混合組織からなり、かつ下式(１)で定義されるＡＣが
５００以上、かつ下式(２)で定義されるＭＦが４０以上であることを特徴とするステンレ
ス鋼板により製造された４輪用ディスクブレーキロータ。
ＡＣ＝３５Ｃｒ＋７５Ｓｉ＋６０Ｍｏ＋１７０Ｎｂ＋６２０Ｔｉ＋７５０Ａl−２５０Ｃ
−２８０Ｎ−１２０Ｎｉ−７０Ｍｎ−２０Ｃｕ＋５０・・・(１)
ＭＦ=４８０−４７４Ｃ−４０８Ｃ＋６１Ｎｂ−１７Ｃｒ−３３Ｍｎ−２１Ｍｏ−１
７Ｎｉ−３９Ｖ・・・(２)
ただし、各元素記号はそれぞれ合金元素としての含有量（質量％）である。 % By mass
C: 0.4% or less Si: 0.30% to 3.00%
Mn: 0.2% to 4.0%
Ni: 0.1% to 4.0%
Cr: 8% to 20%
N: 0.30% or less, Mo: 0.50% or less, Cu: 0.50% or less, with the balance being Fe and unavoidable impurities, and martensite structure or mixed structure of martensite phase and ferrite phase A four-wheel disc brake manufactured by a stainless steel plate, characterized in that the AC defined by the following formula (1) is 500 or more and the MF defined by the following formula (2) is 40 or more Rotor.
AC = 35Cr + 75Si + 60Mo + 170Nb + 620Ti + 750Al-250C
-280N-120Ni-70Mn-20Cu + 50 (1)
MF = 480-474C - 408C + 61Nb-17Cr-33Mn-21Mo-1
7Ni-39V ... (2)
However, each element symbol is a content (mass%) as an alloy element.
Ｃ ：０.４％以下
Ｓｉ：０.３０％〜３.００％
Ｍｎ：０.２％〜４.０％
Ｎｉ：０.１％〜４.０％
Ｃｒ：８％〜２０％
Ｎ ：０.３０％以下
Ｍｏ：０.５０％以下
Ｃｕ：０.５０％以下
を含有し、さらにＢを０.０１０％以下あるいは、Ｔｉ，Ｎｂ，Ｖ，Ｚｒのうち、１種ま
たは２種以上をそれぞれ０.０１〜０.２％以下含有し残部がＦｅ及び不可避的不純物から
なり、かつマルテンサイト組織、あるいはマルテンサイト相とフェライト相の混合組織か
らなり、
かつ下式(１)で定義されるＡＣが５００以上、かつ下式(２)で定義されるＭＦが４０以上
であることを特徴とするステンレス鋼板により製造された４輪用ディスクブレーキロータ
ＡＣ＝３５Ｃｒ＋７５Ｓｉ＋６０Ｍｏ＋１７０Ｎｂ＋６２０Ｔｉ＋７５０Ａl−２５０Ｃ
−２８０Ｎ−１２０Ｎｉ−７０Ｍｎ−２０Ｃｕ＋５００・・・ (１)
ＭＦ=４８０−４７４Ｃ−４０８Ｃ＋６１Ｎｂ−１７Ｃｒ−３３Ｍｎ−２１Ｍｏ−１
７Ｎｉ−３９Ｖ・・・(２)
ただし、各元素記号はそれぞれ合金元素としての含有量（質量％）である。 % By mass
C: 0.4% or less Si: 0.30% to 3.00%
Mn: 0.2% to 4.0%
Ni: 0.1% to 4.0%
Cr: 8% to 20%
N: 0.30% or less Mo: 0.50% or less Cu: 0.50% or less, and further B is 0.010% or less, or one or two of Ti, Nb, V and Zr Each of the above is contained in an amount of 0.01 to 0.2% or less, and the balance is composed of Fe and inevitable impurities, and is composed of a martensite structure or a mixed structure of a martensite phase and a ferrite phase,
And the AC brake defined by the following formula (1) is 500 or more, and the MF defined by the following formula (2) is 40 or more. 35Cr + 75Si + 60Mo + 170Nb + 620Ti + 750Al-250C
-280N-120Ni-70Mn-20Cu + 500 (1)
MF = 480-474C - 408C + 61Nb-17Cr-33Mn-21Mo-1
7Ni-39V ... (2)
However, each element symbol is a content (mass%) as an alloy element.
で計算されるＭＦ温度にまで冷却することを特徴とする４輪用ディスクブレーキロータの
製造方法。
Manufacturing of a four-wheel disc brake rotor characterized in that it is heated to an AC temperature or higher calculated by the above equation (1), then press-molded, and cooled to the MF temperature calculated by the above equation (2). Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014256918A JP2016117925A (en) | 2014-12-19 | 2014-12-19 | Four wheel stainless steel disk brake rotor and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014256918A JP2016117925A (en) | 2014-12-19 | 2014-12-19 | Four wheel stainless steel disk brake rotor and method for manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2016117925A JP2016117925A (en) | 2016-06-30 |
| JP2016117925A5 true JP2016117925A5 (en) | 2017-11-09 |
Family
ID=56243837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014256918A Pending JP2016117925A (en) | 2014-12-19 | 2014-12-19 | Four wheel stainless steel disk brake rotor and method for manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2016117925A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107245651B (en) * | 2017-06-29 | 2019-07-02 | 马鞍山钢铁股份有限公司 | A kind of middle carbon railway freight-car wheel steel and preparation method thereof |
| CN109280862A (en) * | 2018-12-03 | 2019-01-29 | 常熟理工学院 | A kind of automobile brake disc high abrasion stainless steel and its manufacturing method |
| KR102164074B1 (en) * | 2018-12-19 | 2020-10-13 | 주식회사 포스코 | Steel material for brake disc of motor vehicle having excellent wear resistance and high temperature strength and method of manufacturing the same |
| JP2020152992A (en) * | 2019-03-22 | 2020-09-24 | 日鉄ステンレス株式会社 | Stainless steel plate, die quench member, and method for manufacturing die quench member |
| CN113661261B (en) * | 2019-03-28 | 2023-09-19 | 日铁不锈钢株式会社 | Ferritic stainless steel sheet for automobile brake disc rotor, and hot-stamped product for automobile brake disc rotor |
| JPWO2021256336A1 (en) | 2020-06-16 | 2021-12-23 | ||
| WO2021256338A1 (en) | 2020-06-16 | 2021-12-23 | 日清紡ブレーキ株式会社 | Friction pair |
| CN115698219A (en) | 2020-06-16 | 2023-02-03 | 日清纺制动器株式会社 | Friction pair |
| WO2023243323A1 (en) * | 2022-06-16 | 2023-12-21 | 日鉄ステンレス株式会社 | Stainless steel sheet for brake disc rotors and method for producing same, and brake disc rotor and method for producing same |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756392A (en) * | 1986-11-26 | 1988-07-12 | Appalachian Accessories, Inc. | Stainless steel brake rotor for airplane disk brakes |
| JP3491030B2 (en) * | 2000-10-18 | 2004-01-26 | 住友金属工業株式会社 | Stainless steel for disk shakers |
| JP3942934B2 (en) * | 2002-03-29 | 2007-07-11 | 日新製鋼株式会社 | Manufacturing method of stainless steel molded products with excellent shape accuracy |
| JP4496908B2 (en) * | 2003-10-08 | 2010-07-07 | Ｊｆｅスチール株式会社 | Brake disc excellent in tempering softening resistance and manufacturing method thereof |
| JP4182865B2 (en) * | 2003-11-11 | 2008-11-19 | Ｊｆｅスチール株式会社 | Stainless steel plate for disc brakes with excellent temper softening resistance |
| JP4315006B2 (en) * | 2004-02-05 | 2009-08-19 | Ｊｆｅスチール株式会社 | Manufacturing method of stainless steel plate for disc brake rotor |
| JP4843969B2 (en) * | 2004-03-22 | 2011-12-21 | Ｊｆｅスチール株式会社 | Stainless steel plate for disc brakes with excellent heat resistance and corrosion resistance |
| JP5310793B2 (en) * | 2004-03-22 | 2013-10-09 | Ｊｆｅスチール株式会社 | Stainless steel plate for disc brakes with excellent heat resistance and corrosion resistance |
| JP2006089766A (en) * | 2004-09-21 | 2006-04-06 | Nisshin Steel Co Ltd | Disk brake rotor excellent in corrosion resistance |
| JP4569360B2 (en) * | 2005-04-06 | 2010-10-27 | Ｊｆｅスチール株式会社 | Brake disc with excellent temper softening resistance and toughness |
| CN101426942A (en) * | 2006-10-05 | 2009-05-06 | 杰富意钢铁株式会社 | Brake discs excellent in resistance to temper softening and toughness |
| KR20150108932A (en) * | 2013-03-19 | 2015-09-30 | 제이에프이 스틸 가부시키가이샤 | Stainless steel sheet |
-
2014
- 2014-12-19 JP JP2014256918A patent/JP2016117925A/en active Pending
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