US3767386A - Compound cast-iron for making brake shoes - Google Patents

Compound cast-iron for making brake shoes Download PDF

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Publication number
US3767386A
US3767386A US00213158A US3767386DA US3767386A US 3767386 A US3767386 A US 3767386A US 00213158 A US00213158 A US 00213158A US 3767386D A US3767386D A US 3767386DA US 3767386 A US3767386 A US 3767386A
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US
United States
Prior art keywords
iron
cast
brake shoes
percent
composition
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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.)
Expired - Lifetime
Application number
US00213158A
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English (en)
Inventor
Y Ueda
A Yoshioka
H Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KAISHA K UEDASA CHUZO SHO
KAISHA K UEDASA CHUZO SHO JA
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KAISHA K UEDASA CHUZO SHO
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Application filed by KAISHA K UEDASA CHUZO SHO filed Critical KAISHA K UEDASA CHUZO SHO
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Publication of US3767386A publication Critical patent/US3767386A/en
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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
    • C22C37/06—Cast-iron alloys containing chromium

Definitions

  • 75/126 K Cast-iron composition for making brake shoes which [51] Int. Cl. C22c 37/06, Fl6d 69/02 composition, after casting, consists essentially of C [58] Field of Search 75/123 D, 123 CB, 2.73.5%, Si 1.0-2.0%, Mn 0.41.5%, P 1.0-3.0%, 75/123 N, 123 J, 123 L, 123 M, 126 A, 126 S 0.15% and Ti 0.30.7% and additionally includes E, 126 K, 126 L, 126 Q either V 0.050.30% or Cr 0.101.25% or Mo 0.15I.25%, the remaining proportion of the composi- [5 6] References Cited tion consisting of iron.
  • the present invention is related to a cast-iron composition for making brake shoes comprising C 2.7-3.5%, Si l.0-2.0%, Mn 0.4l.5%, P 1.0-3.0%, S 0.15% and Ti 0.30.7% and additionally include either V 0.050.30% or Cr O.10l.25% or Mo 0.15-1.25% and the remaining proportion of the composition being made up of iron. All of these percentages are of course based upon the weight of the composition.
  • the purpose of the present invention is to obtain a cast-iron for making brake shoes which has an excellent braking effect (i.e., a large coefficient of friction) and wear-resisting capacity as well as sufficient strength and tenacity.
  • a cast-iron composition for making brake shoes is produced by means of making the main body cast-iron with a super high phosphor cast-iron which consists of such chemical components as C 2.7-3.5%, Si 1.0-2.0%, Mn 0.4-l.5% and S 0.15%, to which Ti 0.30.7% is added and further eithen V 0.050.30% or Cr 0.10] .25% or Mo 0.15-1.25% is added as a carbide formation stabilizing element, the remaining part of the main body being Fe.
  • the composition is so devised as to increase both the co-efficient of friction and the wearresisting capacity further by means of defining the P content to 1.0-3.0% and educing steadite to a great extent.
  • the main body cast-iron By means of adding Ti to the main body cast-iron by O.3-0.7%, the latter becomes to have a very fine cocrystal graphite structure in which graphite educes as a mixed structure of a globular and a green caterpillar shape.
  • the Ti containing cast-iron combines with oxygen and nitrogen in melting cast-iron so easily that it increases its mechanical capacity (i.e., tension-resisting force and break-resisting force) as the result of strong deoxidization and denitrification functions.
  • the Ti content is less than 0.3%, the deoxidization and denitrification are weak and the co-crystal graphite structure cannot be produced.
  • the Ti carbide and Ti nitride attain stabilized setups which are scattered in the cast-iron ground and thus it becomes possible to obtain the stability of COfiffir cient of friction for high-speed running.
  • High-phosphor brake shoes 2.90 1.25 .67 .65 .110
  • Brake shoes made in accordance with the present invention 2.91 1.53 .56 1.90 .098 0.33 0.15 Do 3.01 1.51 .53 1.88 .101 .31 Do 3.03 1.50 .59 1.31 .095 .80
  • Weight of inertia is 6.36 tons.
  • Braking velocities(Vo) are 35, 65, 95 & 1 10 km/h.
  • This castiron has excellent strength and tenacity and the amount of wear is so small that their wear-resisting capacity is about 3.8 times better than that of ordinary cast-iron brake shoes and about 2 times better than that of the high-phosphor brake shoes which are used at the present time. Further the coefficient of friction of the present brake shoes is high and yet stabilized enough to be used at high speeds.
  • a cast-iron composition for making brake shoes which consists essentially of, after casting, carbon from 2.7 percent up to 3.5 percent by weight, silicon from 1.0 percent up to 2.0 percent by weight, manganese from 0.4 percent up to 1.5 percent by weight, phosphorus from 1.0 percent up to 3.0 percent by weight, sulfur less than 0.15 percent by weight, titanium from 0.3 percent up to 0.7 percent by weight, vanadium from 0.05 percent up to 0.30 percent by weight and the balance iron.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Braking Arrangements (AREA)
US00213158A 1971-04-05 1971-12-28 Compound cast-iron for making brake shoes Expired - Lifetime US3767386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46021219A JPS516608B1 (enrdf_load_stackoverflow) 1971-04-05 1971-04-05

Publications (1)

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US3767386A true US3767386A (en) 1973-10-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00213158A Expired - Lifetime US3767386A (en) 1971-04-05 1971-12-28 Compound cast-iron for making brake shoes

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US (1) US3767386A (enrdf_load_stackoverflow)
JP (1) JPS516608B1 (enrdf_load_stackoverflow)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849122A (en) * 1972-10-19 1974-11-19 Caterpillar Tractor Co Stainless iron base alloy metal-to-metal high speed seals
US3891432A (en) * 1973-01-24 1975-06-24 Hitachi Ltd High toughness spheroidal graphite cast iron and method for producing the same
US3909252A (en) * 1973-11-01 1975-09-30 Suzuki Motor Co Wear-resistant cast iron for sliding surfaces
US3929181A (en) * 1972-07-06 1975-12-30 Goetzewerke Method for producing alloys having wear-resistant surfaces
US4345942A (en) * 1979-04-26 1982-08-24 Nippon Piston Ring Co., Ltd. Abrasion resistant sintered alloy for internal combustion engines
US4345943A (en) * 1979-04-26 1982-08-24 Nippon Piston Ring Co., Ltd. Abrasion resistant sintered alloy for internal combustion engines
US4352416A (en) * 1977-01-18 1982-10-05 Abex Corp. Cast iron railroad brake shoes
US4360383A (en) * 1979-04-26 1982-11-23 Nippon Piston Ring Co., Ltd. Abrasion resistant sintered alloy for internal combustion engines
US4362581A (en) * 1980-02-05 1982-12-07 Sony Corporation Magnetic alloy
US4409765A (en) * 1980-06-24 1983-10-18 Pall Avtar S Earth-quake proof building construction
US4422538A (en) * 1978-10-20 1983-12-27 Luk Lamellen Und Kupplungsbau Gmbh Friction clutch, especially for motor vehicles
EP0277931A3 (en) * 1987-02-05 1988-09-07 Piret B Atel Fond Sa Wear-resistant cast iron with a high phosphorus content
US4863513A (en) * 1983-09-28 1989-09-05 Genkichi Umeha Iron-base anti-wear sintered alloy member
US5323883A (en) * 1988-09-20 1994-06-28 Nissan Motor Company, Limited Friction device
RU2122042C1 (ru) * 1997-06-26 1998-11-20 Акционерное общество закрытого типа "Научно-технический центр по исследованиям в горном деле" Чугун для тормозных колодок
US5841042A (en) * 1995-10-20 1998-11-24 Tokyo Yogyo Kabushiki Kaisha Brake lining material for heavy-load braking device
US6668984B2 (en) 2000-12-06 2003-12-30 Honeywell Advanced Composites Inc. Oxidation protection for carbon/carbon composite and graphite friction materials
CN102828103A (zh) * 2012-08-07 2012-12-19 苏州东方模具科技股份有限公司 合金灰铸铁玻璃模具及其制备方法
CN105401058A (zh) * 2015-11-10 2016-03-16 太仓捷公精密金属材料有限公司 一种铜铝铸铁模具材料

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019170226A (ja) * 2018-03-28 2019-10-10 グローブライド株式会社 魚釣用スピニングリール

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1979015A (en) * 1930-12-15 1934-10-30 Ver Stahlwerke Ag Steel alloy
GB490100A (en) * 1937-08-23 1938-08-09 Stroemsnaes Jernverks Aktiebol Improved iron alloy for the production of rolls
US2179695A (en) * 1938-11-05 1939-11-14 Gen Motors Corp Ferrous alloy
US2209248A (en) * 1937-09-07 1940-07-23 Battelle Memorial Institute Alloy steel
US2225997A (en) * 1938-11-05 1940-12-24 Gen Motors Corp Ferrous alloy
US3318423A (en) * 1963-10-10 1967-05-09 Escher Wyss Ag Vehicle brake part
US3620334A (en) * 1967-07-07 1971-11-16 Albright & Wilson Frictional-retarding means

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1979015A (en) * 1930-12-15 1934-10-30 Ver Stahlwerke Ag Steel alloy
GB490100A (en) * 1937-08-23 1938-08-09 Stroemsnaes Jernverks Aktiebol Improved iron alloy for the production of rolls
US2209248A (en) * 1937-09-07 1940-07-23 Battelle Memorial Institute Alloy steel
US2179695A (en) * 1938-11-05 1939-11-14 Gen Motors Corp Ferrous alloy
US2225997A (en) * 1938-11-05 1940-12-24 Gen Motors Corp Ferrous alloy
US3318423A (en) * 1963-10-10 1967-05-09 Escher Wyss Ag Vehicle brake part
US3620334A (en) * 1967-07-07 1971-11-16 Albright & Wilson Frictional-retarding means

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929181A (en) * 1972-07-06 1975-12-30 Goetzewerke Method for producing alloys having wear-resistant surfaces
US3849122A (en) * 1972-10-19 1974-11-19 Caterpillar Tractor Co Stainless iron base alloy metal-to-metal high speed seals
US3891432A (en) * 1973-01-24 1975-06-24 Hitachi Ltd High toughness spheroidal graphite cast iron and method for producing the same
US3909252A (en) * 1973-11-01 1975-09-30 Suzuki Motor Co Wear-resistant cast iron for sliding surfaces
US4352416A (en) * 1977-01-18 1982-10-05 Abex Corp. Cast iron railroad brake shoes
US4422538A (en) * 1978-10-20 1983-12-27 Luk Lamellen Und Kupplungsbau Gmbh Friction clutch, especially for motor vehicles
US4345943A (en) * 1979-04-26 1982-08-24 Nippon Piston Ring Co., Ltd. Abrasion resistant sintered alloy for internal combustion engines
US4360383A (en) * 1979-04-26 1982-11-23 Nippon Piston Ring Co., Ltd. Abrasion resistant sintered alloy for internal combustion engines
US4345942A (en) * 1979-04-26 1982-08-24 Nippon Piston Ring Co., Ltd. Abrasion resistant sintered alloy for internal combustion engines
US4362581A (en) * 1980-02-05 1982-12-07 Sony Corporation Magnetic alloy
US4409765A (en) * 1980-06-24 1983-10-18 Pall Avtar S Earth-quake proof building construction
US4863513A (en) * 1983-09-28 1989-09-05 Genkichi Umeha Iron-base anti-wear sintered alloy member
BE1000292A3 (fr) * 1987-02-05 1988-10-11 Piret B Atel Fond Sa Fonte a haute teneur en phosphore resistant a l'usure.
EP0277931A3 (en) * 1987-02-05 1988-09-07 Piret B Atel Fond Sa Wear-resistant cast iron with a high phosphorus content
US5323883A (en) * 1988-09-20 1994-06-28 Nissan Motor Company, Limited Friction device
US5841042A (en) * 1995-10-20 1998-11-24 Tokyo Yogyo Kabushiki Kaisha Brake lining material for heavy-load braking device
RU2122042C1 (ru) * 1997-06-26 1998-11-20 Акционерное общество закрытого типа "Научно-технический центр по исследованиям в горном деле" Чугун для тормозных колодок
US6668984B2 (en) 2000-12-06 2003-12-30 Honeywell Advanced Composites Inc. Oxidation protection for carbon/carbon composite and graphite friction materials
CN102828103A (zh) * 2012-08-07 2012-12-19 苏州东方模具科技股份有限公司 合金灰铸铁玻璃模具及其制备方法
CN105401058A (zh) * 2015-11-10 2016-03-16 太仓捷公精密金属材料有限公司 一种铜铝铸铁模具材料

Also Published As

Publication number Publication date
JPS516608B1 (enrdf_load_stackoverflow) 1976-03-01

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