WO2001006028A1 - Cast iron for vehicle brake components - Google Patents

Cast iron for vehicle brake components Download PDF

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Publication number
WO2001006028A1
WO2001006028A1 PCT/EP2000/006635 EP0006635W WO0106028A1 WO 2001006028 A1 WO2001006028 A1 WO 2001006028A1 EP 0006635 W EP0006635 W EP 0006635W WO 0106028 A1 WO0106028 A1 WO 0106028A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
cast iron
aluminium
disks
vehicle brake
Prior art date
Application number
PCT/EP2000/006635
Other languages
English (en)
French (fr)
Inventor
Leone Oberti
Original Assignee
Freni Brembo S.P.A.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Freni Brembo S.P.A. filed Critical Freni Brembo S.P.A.
Priority to AU62725/00A priority Critical patent/AU6272500A/en
Publication of WO2001006028A1 publication Critical patent/WO2001006028A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/10—Cast-iron alloys containing aluminium or silicon

Definitions

  • the present invention relates to the field of vehicle brakes. More particularly, the invention relates to a cast iron for the production of brake components, particularly but not exclusively disk-brake disks.
  • Known disks for vehicle brakes are made of cast iron, possibly with additives of various elements such as, for example, silicon and manganese.
  • a problem which afflicts known cast-iron disks consists of the corrosion to which the disks are subject due to external agents, for example, atmospheric agents. Corrosion of the disks occurs to a more pronounced extent during periods of prolonged inactivity of the vehicle, for example, during relatively long storage periods when the product is finished, prior to the actual delivery of the vehicle to the final user.
  • a known solution to this problem consists in coating the brake disks with layers of protective material, for example, layers of special protective oils or other substances such as the commercially-known Dacromet .
  • a further problem of known cast-iron disk-brake disks results from the fact that a vehicle may also be faced with prolonged periods of inactivity in the course of its life, after delivery to the final user. During these periods, the brake pads may bind to the surfaces of the respective disks. This causes mutual contamination or tainting of the pads and of the disks owing to migration of substances of which they are composed in both directions. The contamination is localized at a particular point on the disk and this gives rise to vibrations during braking when the vehicle returns to use .
  • an object of the present invention is to provide a material for vehicle brake components, particularly but not exclusively for disk-brake disks, which is not afflicted by the problems exhibited by the prior art .
  • this object is achieved by means of a cast-iron for vehicle brake components, particularly disk-brake disks, characterized in that it includes a quantity less than or equal to 10% by weight of aluminium.
  • Silicon from 1.8% to 2.2% by weight, preferably 2.0%;
  • Manganese from 0.5% to 0.8% by weight, preferably 0.65%; Iron :from 90.6% to 86.5% by weight, preferably 89.05%;
  • Copper and chromium gray iron with a high carbon content Copper and chromium gray iron with a high carbon content :
  • Aluminium from 4.0% to 7.0% by weight, preferably 5.0%; Carbon :from 3.55% to 3.85% by weight, preferably 3.7%;
  • Silicon from 1.6% to 2.1% by weight, preferably 1.85%; Manganese : from 0.4% to 0.8% by weight, preferably 0.6%; Chromium : from 0.1% to 0.3% by weight, preferably 0.2%; Copper :from 0.3% to 0.6% by weight, preferably 0.45%; Iron :from 90.05% to 85.35% by weight, pref . 88.2%;
  • Aluminium from 1.6% to 3.9% by weight, preferably 3.0%;
  • Carbon from 3.1% to 3.5% by weight, preferably 3.3%;
  • Silicon from 1.8% to 2.2% by weight, preferably 2.0%;
  • Manganese from 0.5% to 0.8% by weight, preferably 0.65%;
  • Iron from 93.0% to 89.6% by weight, pref. 91.05%;
  • Copper and chromium gray iron with a high carbon content Aluminium : from 1.6% to 3.9% by weight, preferably 3.0%;
  • Carbon from 3.55% to 3.85% by weight, preferably 3.7%;
  • Silicon from 1.6% to 2.1% by weight, preferably 1.85%
  • Manganese from 0.4% to 0.8% by weight, preferably 0.6%
  • Chromium from 0.1% to 0.3% by weight, preferably 0.2%;
  • Copper from 0.3% to 0.6% by weight, preferably 0.45%;
  • Iron from 92.45% to 88.45% by weight, pref. 90.2%.
  • a cast iron according to the present invention is used for the manufacture of disk-brake disks, it solves the problems of corrosion of the disks during periods of inactivity of the vehicles prior to delivery to the final users and of contamination or tainting of the disks and of the pads which may occur in the event of more or less prolonged periods of inactivity of the vehicles, thus eliminating vibrations during braking to which this contamination leads when the vehicles return to use .
  • the addition of aluminium to the conventional composition of the cast iron does not adversely affect the other characteristics of the material; on the contrary, with the particular quantity of aluminium according to the invention, the cast iron has an acceptable hardness and is even more wear resistant.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Braking Arrangements (AREA)
PCT/EP2000/006635 1999-07-15 2000-07-12 Cast iron for vehicle brake components WO2001006028A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU62725/00A AU6272500A (en) 1999-07-15 2000-07-12 Cast iron for vehicle brake components

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI99A001577 1999-07-15
IT1999MI001577A IT1313177B1 (it) 1999-07-15 1999-07-15 Ghisa per componenti di freni di veicoli.

Publications (1)

Publication Number Publication Date
WO2001006028A1 true WO2001006028A1 (en) 2001-01-25

Family

ID=11383355

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/006635 WO2001006028A1 (en) 1999-07-15 2000-07-12 Cast iron for vehicle brake components

Country Status (3)

Country Link
AU (1) AU6272500A (it)
IT (1) IT1313177B1 (it)
WO (1) WO2001006028A1 (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20100196A1 (it) * 2010-12-02 2012-06-03 Freni Brembo Spa Ghisa, in particolare per componenti di freni a disco
WO2013117190A3 (de) * 2012-02-07 2015-04-02 Ford-Werke Gmbh GUßEISENWERKSTOFF UND FAHRZEUGTEIL AUS DEM GUßEISENWERKSTOFF

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB832579A (en) * 1957-08-13 1960-04-13 Meehanite Metal Corp Improved ferrous alloys
GB1482724A (en) * 1974-06-14 1977-08-10 Goetzewerke Wear-resistant cast-iron alloy
JPS544222A (en) * 1977-06-13 1979-01-12 Toyoda Chuo Kenkyusho Kk Wearrresistant cast iron having netttype carbide structure
PL109381B1 (en) * 1976-02-09 1980-05-31 Cast iron
JPS6052550A (ja) * 1983-08-31 1985-03-25 Sumitomo Metal Ind Ltd デイスクブレ−キロ−タ用鋼
JPS6217124A (ja) * 1985-07-17 1987-01-26 Nippon Piston Ring Co Ltd 鋳鉄の局部再溶融法による耐酸化チル層の形成法
JPS62240745A (ja) * 1986-04-11 1987-10-21 Yamaha Motor Co Ltd ブレ−キの被制動部材
JPS62240746A (ja) * 1986-04-11 1987-10-21 Yamaha Motor Co Ltd ブレ−キの被制動部材
JPS63140064A (ja) * 1986-12-03 1988-06-11 Nissan Motor Co Ltd ブレ−キ材料
JPH04272522A (ja) * 1991-02-22 1992-09-29 Matsubara:Kk ディスクブレーキ用ロータおよび製造方法
EP0821073A1 (de) * 1996-07-25 1998-01-28 Federal-Mogul Burscheid GmbH Gusseisenlegierung für die Herstellung von Kolbenringen von Verbrennungskraftmaschinen

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB832579A (en) * 1957-08-13 1960-04-13 Meehanite Metal Corp Improved ferrous alloys
GB1482724A (en) * 1974-06-14 1977-08-10 Goetzewerke Wear-resistant cast-iron alloy
PL109381B1 (en) * 1976-02-09 1980-05-31 Cast iron
JPS544222A (en) * 1977-06-13 1979-01-12 Toyoda Chuo Kenkyusho Kk Wearrresistant cast iron having netttype carbide structure
JPS6052550A (ja) * 1983-08-31 1985-03-25 Sumitomo Metal Ind Ltd デイスクブレ−キロ−タ用鋼
JPS6217124A (ja) * 1985-07-17 1987-01-26 Nippon Piston Ring Co Ltd 鋳鉄の局部再溶融法による耐酸化チル層の形成法
JPS62240745A (ja) * 1986-04-11 1987-10-21 Yamaha Motor Co Ltd ブレ−キの被制動部材
JPS62240746A (ja) * 1986-04-11 1987-10-21 Yamaha Motor Co Ltd ブレ−キの被制動部材
JPS63140064A (ja) * 1986-12-03 1988-06-11 Nissan Motor Co Ltd ブレ−キ材料
JPH04272522A (ja) * 1991-02-22 1992-09-29 Matsubara:Kk ディスクブレーキ用ロータおよび製造方法
EP0821073A1 (de) * 1996-07-25 1998-01-28 Federal-Mogul Burscheid GmbH Gusseisenlegierung für die Herstellung von Kolbenringen von Verbrennungskraftmaschinen

Non-Patent Citations (13)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 79, no. 2, 16 July 1973, Columbus, Ohio, US; abstract no. 8636, SHIKATA, TOSHIO ET AL: "Cast iron molds with improved heat-shock resistance" XP002153079 *
CHEMICAL ABSTRACTS, vol. 91, no. 10, 3 September 1979, Columbus, Ohio, US; abstract no. 77709, SAKWA, WACLAW: "Cast iron for castings resistant to the effect of high temperatures" XP002153080 *
CHEMICAL ABSTRACTS, vol. 97, no. 12, 20 September 1982, Columbus, Ohio, US; abstract no. 96365, LIBSCH, T. A. ET AL: "The effects of compositional variations in heavy truck rotors upon rotor and pad wear" XP002153082 *
CHEMICAL ABSTRACTS, vol. 97, no. 4, 26 July 1982, Columbus, Ohio, US; abstract no. 27153, SZRENIAWSKI, JANUSZ ET AL: "Cast iron" XP002153081 *
DATABASE WPI Section Ch Week 197907, Derwent World Patents Index; Class M27, AN 1979-13331B, XP002153084 *
DATABASE WPI Section Ch Week 198748, Derwent World Patents Index; Class M27, AN 1987-337297, XP002153083 *
E.PIWOWARSKY: "Hochwertiges Gusseisen", 1958, SPRINGER VERLAG, BERLIN, XP002153078 *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 184 (C - 294) 30 July 1985 (1985-07-30) *
PATENT ABSTRACTS OF JAPAN vol. 011, no. 193 (C - 430) 20 June 1987 (1987-06-20) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 117 (C - 487) 13 April 1988 (1988-04-13) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 398 (C - 538) 21 October 1988 (1988-10-21) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 068 (M - 1365) 10 February 1993 (1993-02-10) *
WEAR MATER. (1981), 3RD, 343-50, 1981 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20100196A1 (it) * 2010-12-02 2012-06-03 Freni Brembo Spa Ghisa, in particolare per componenti di freni a disco
WO2013117190A3 (de) * 2012-02-07 2015-04-02 Ford-Werke Gmbh GUßEISENWERKSTOFF UND FAHRZEUGTEIL AUS DEM GUßEISENWERKSTOFF
US9783875B2 (en) 2012-02-07 2017-10-10 Ford-Werke Gmbh Cast iron material and motor vehicle part made of the cast iron material
EP2820164B1 (de) * 2012-02-07 2019-04-10 Ford-Werke GmbH Ferritischer gusseisenwerkstoff mit lamellarer graphitausbildung und fahrzeugteil aus dem gusseisenwerkstoff

Also Published As

Publication number Publication date
ITMI991577A1 (it) 2001-01-15
IT1313177B1 (it) 2002-06-17
AU6272500A (en) 2001-02-05
ITMI991577A0 (it) 1999-07-15

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