MX166698B - Nucleos recubiertos de duracion limitada para piezas moldeadas en troquel - Google Patents

Nucleos recubiertos de duracion limitada para piezas moldeadas en troquel

Info

Publication number
MX166698B
MX166698B MX015399A MX1539989A MX166698B MX 166698 B MX166698 B MX 166698B MX 015399 A MX015399 A MX 015399A MX 1539989 A MX1539989 A MX 1539989A MX 166698 B MX166698 B MX 166698B
Authority
MX
Mexico
Prior art keywords
percent
less
core
liner
good
Prior art date
Application number
MX015399A
Other languages
English (en)
Inventor
Robert W Downing
Original Assignee
Doehler Javis Limited Partners
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 Doehler Javis Limited Partners filed Critical Doehler Javis Limited Partners
Publication of MX166698B publication Critical patent/MX166698B/es

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

La presente invención se refiere a un macho de arena consumible, caracterizado porque tiene: a) buenas propiedades de desmoldeo, b) buena resistencia al lavado, c) libertad de penetración superficial, d) buena duración o vida en estante y e) alta resistencia de macho para resistir presiones que exceden 70.3 kg/cm cuadrado (1000 psi) y para formar regiones de muesca lisas en una fundición en matriz, cuyo macho esencialmente consiste de: A) una base de arena, que tiene granos que se tocan entre sí, con los espacios entre los granos cuando menos parcialmente llenos con un aglutinante de resina; B) un primer revestimiento acuoso en la base, que esencialmente consiste de: 1) cuando menos aproximadamente 40 por ciento en peso del primer revestimiento de un refractario que comprende sílice fundida que tiene un tamaño de partículas inferior a aproximadamente 100 micras y un tamaño de partículas promedio inferior a aproximadamente 50 micras; 2) cuando menos 1 por ciento y menos de aproximadamente 15 por ciento en peso de el primer revestimiento acuoso de un aglutinante; y 3) cuando menos .01 por ciento y menos de aproximadamente 1.5 por ciento en peso de el primer revestimiento acuoso de cuando menos dos aditivos diferenciales, selectos de los grupos de aditivos que consisten de agentes de suspensión, dispersantes, agentes humectantes y agentes anti-costra y C) un segundo revestimiento para liberación líquido.
MX015399A 1988-03-23 1989-03-22 Nucleos recubiertos de duracion limitada para piezas moldeadas en troquel MX166698B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17355888A 1988-03-23 1988-03-23
US07/319,543 US4867225A (en) 1988-03-23 1989-03-06 Coated expendable cores for die casting dies

Publications (1)

Publication Number Publication Date
MX166698B true MX166698B (es) 1993-01-28

Family

ID=26869282

Family Applications (1)

Application Number Title Priority Date Filing Date
MX015399A MX166698B (es) 1988-03-23 1989-03-22 Nucleos recubiertos de duracion limitada para piezas moldeadas en troquel

Country Status (9)

Country Link
US (1) US4867225A (es)
EP (1) EP0373196B1 (es)
JP (1) JPH07110395B2 (es)
KR (1) KR960016458B1 (es)
AU (1) AU621876B2 (es)
BR (1) BR8906475A (es)
DE (1) DE68905305T2 (es)
MX (1) MX166698B (es)
WO (1) WO1989009106A1 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961458A (en) * 1988-03-23 1990-10-09 Farley, Inc. Method of forming a die casting with coated expendable cores
US4951731A (en) * 1989-10-10 1990-08-28 Farley, Inc. Process for washing a casting core
WO1992003238A1 (en) * 1990-08-13 1992-03-05 Doehler-Jarvis Limited Partnership Die casting from dies having coated expendable cores
US5725044A (en) * 1994-08-30 1998-03-10 Hirokawa; Koji Casting method using a forming die
US6316047B1 (en) 1995-06-09 2001-11-13 Ford Global Technologies, Inc. Method for applying dry powder refractory coating to sand cores
US6029736A (en) * 1997-08-29 2000-02-29 Howmet Research Corporation Reinforced quartz cores for directional solidification casting processes
CN1049166C (zh) * 1997-10-08 2000-02-09 冶金工业部钢铁研究总院 薄壁铸件铸造用涂料
US20060054057A1 (en) * 2004-09-16 2006-03-16 Doles Ronald S Filler component for investment casting slurries
DK2364795T3 (da) 2010-03-08 2012-10-22 Foseco Int Coatingsammensætning til støbegods
CN102847870B (zh) * 2012-08-08 2014-05-21 南京航空航天大学 熔模铸钛用水基氧化锆涂料的悬浮剂的制备方法及其悬浮剂与应用
CN102825211A (zh) * 2012-09-19 2012-12-19 中北大学 一种非占位涂料及其应用
CN103506565B (zh) * 2013-09-28 2015-09-30 无锡阳工机械制造有限公司 一种刚玉粉铸造涂料
RU2604163C1 (ru) * 2015-05-29 2016-12-10 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Разделительное покрытие для литейных пресс-форм
CN111804873B (zh) * 2020-07-24 2022-03-08 石家庄盛华企业集团有限公司 一种型壳中封滴浆及其工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US392245A (en) * 1888-11-06 Bale-tie machine
US3922245A (en) * 1974-04-26 1975-11-25 Ashland Oil Inc Wash coating for sand cores and sand molds containing a rubber polymer
US4001468A (en) * 1974-04-26 1977-01-04 Ashland Oil, Inc. Method for coating sand cores and sand molds
US4096293A (en) * 1977-09-06 1978-06-20 Ashland Oil, Inc. Mold and core wash
US4194915A (en) * 1978-01-03 1980-03-25 N L Industries, Inc. Foundry mold and core wash additives
US4413666A (en) * 1979-10-01 1983-11-08 Nl Industries, Inc. Expendable die casting sand core
US4766943A (en) * 1981-08-06 1988-08-30 Farley Metals, Inc. Expendable die casting sand core
US4529028A (en) * 1981-11-13 1985-07-16 Farley Metals, Inc. Coating for molds and expendable cores

Also Published As

Publication number Publication date
AU3355889A (en) 1989-10-16
DE68905305T2 (de) 1994-02-17
JPH02504368A (ja) 1990-12-13
EP0373196A1 (en) 1990-06-20
KR960016458B1 (ko) 1996-12-12
US4867225A (en) 1989-09-19
BR8906475A (pt) 1991-02-05
AU621876B2 (en) 1992-03-26
EP0373196A4 (en) 1990-09-12
WO1989009106A1 (en) 1989-10-05
DE68905305D1 (de) 1993-04-15
EP0373196B1 (en) 1993-03-10
JPH07110395B2 (ja) 1995-11-29
KR920700076A (ko) 1992-02-19

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