KR840007838A - Method for manufacturing core for hollow casting - Google Patents

Method for manufacturing core for hollow casting Download PDF

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Publication number
KR840007838A
KR840007838A KR1019840001649A KR840001649A KR840007838A KR 840007838 A KR840007838 A KR 840007838A KR 1019840001649 A KR1019840001649 A KR 1019840001649A KR 840001649 A KR840001649 A KR 840001649A KR 840007838 A KR840007838 A KR 840007838A
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KR
South Korea
Prior art keywords
sand
core
binder
hollow
blowing head
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KR1019840001649A
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Korean (ko)
Inventor
미셀손 아나톨
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미셀손 아나톨
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Publication of KR840007838A publication Critical patent/KR840007838A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/10Cores; Manufacture or installation of cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C13/00Moulding machines for making moulds or cores of particular shapes
    • B22C13/08Moulding machines for making moulds or cores of particular shapes for shell moulds or shell cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/12Treating moulds or cores, e.g. drying, hardening
    • B22C9/123Gas-hardening

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Devices For Molds (AREA)

Abstract

내용 없음.No content.

Description

중공형 주물용 코아의 제조방법Method for manufacturing core for hollow casting

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 중공형 코아의 제조방법에 이용하기 위한 냉간중공형 코아성형 박스조립체의 단면도.1 is a cross-sectional view of a cold hollow core-forming box assembly for use in the hollow core manufacturing method according to the present invention.

제2도는 취입헤드로 결합제피복모래의 계량공급을 위한 실시예의 부분단면도.2 is a partial cross-sectional view of an embodiment for metering feed of a binder coating sand to a blowing head.

제3도는 코아박스의 투입공을 통하여 결합제피복모래를 코아패턴의 공동으로 공급하기 위하여 코아박스와 결합된 취입헤드의 부분단면도.3 is a partial cross-sectional view of the blowing head coupled with the core box to supply the binder coating sand to the cavity of the core pattern through the input hole of the core box.

Claims (10)

결합제피복모래가 취입헤드로 공급되어 코아박스의 투입공을 통하여 코아패턴공동으로 투입되고, 코아패턴공동의 모래가 결합제를 경화시켜 중공형의 모래코아를 성형토록 촉매로 치환되며, 경화되지 않은 결합제피복모래가 중공형 모래코아의 공동으로부터 배출되고 회수되는 중공형의 주물용 모래코아의 제조방법에 있어서, 코아패턴공동으로 투입하기 위하여 취입헤드에 새로운 결합제피복모래와 회수된 결합제피복모래를 교호로 공급하여 취입헤드내에서 이들이 혼합되지 않도록 하고 결합제피복모래가 취입헤드로 계량공급되는 단계, 계량된 결합제피복모래를 코아박스의 투입공측으로 연장된 취입판을 통하여 코아패턴공동으로 투입하는 단계, 코아패턴공동내의 모래에 함유된 공기와 연통하는 코아박스외부의 폐쇄된 공간을 제공하는 단계와, 투입공을 통하여 코아패턴공동에서 성형된 중공형의 모래코아로부터 경화되지 않은 결합제피복모래를 배출하는 단계로 구성됨을 특징으로 하는 중공형 주물용 코아의 제조방법.The binder coating sand is supplied to the blowing head and introduced into the core pattern cavity through the input hole of the core box, and the sand of the core pattern cavity cures the binder to replace the hollow sand core with a catalyst for molding. In the manufacturing method of the hollow casting sand core, in which the coated sand is discharged and recovered from the cavity of the hollow sand core, a new binder coating sand and a recovered binder coating sand are alternately added to the blowing head for feeding into the core pattern cavity. Supplying so that they do not mix in the blowing head and metering the binder coating sand into the blowing head, feeding the metered binder coating sand into the core pattern cavity through the blowing plate extending to the feeding side of the core box, the core Provides a closed space outside the core box in communication with the air contained in the sand in the pattern cavity And a step of discharging the uncured binder coating sand from the hollow sand core formed in the core pattern cavity through the injection hole. 청구범위 1항에 있어서, 취입헤드에 계량공급된 결합제피복모래의 양이 코아패턴공동의 체적과 동일함을 특징으로 하는 방법.The method of claim 1 wherein the amount of binder coat sand metered to the blowing head is equal to the volume of the core pattern cavity. 청구범위 1항에 있어서, 중공형 모래코아로부터의 경화되지 않은 결합제피복모래가 압축공기에 의하여 코아박스의 투입공을 통하여 상측부로 배출됨을 특징으로 하는 방법.The method according to claim 1, wherein the uncured binder coated sand from the hollow sand core is discharged to the upper part through the input hole of the core box by compressed air. 청구범위 1항에 있어서, 씨일이 기체삼투성이고 압축공기가 그 배기중에 삼투성씨일을 통하여 코아박스내로 주입됨을 특징으로 하는 방법.The method of claim 1 wherein the seal is gas osmotic and compressed air is injected into the core box through the osmotic seal in its exhaust. 결합제피복모래가 취입헤드로 공급되어 코아박스의 투입공을 통하여 코아패턴공동으로 투입되고, 코아패턴공동의 모래가 결합제를 경화시켜 중공형의 모래코아를 성형토록 촉매로 치환되며, 경화되지 않은 결합제피복모래가 중공형 모래코아의 공동으로부터 배출되고 회수되는 중공형의 주물용 모래코아의 제조방법에 있어서, 결합제가 중공형 모래코아를 성형토록 경화되는 코아패턴공동으로 투입되기 위하여 취입헤드로 새로운 결합제피복모래가 계량공급되는 단계, 중공형모래코아의 공동으로부터 경화되지 않은 결합제피복모래를 배출하여 이를 회수하는 단계, 취입헤드로 새로운 결합제피복모래만을 계량공급하므로서 부가적인 중공형의 모레코아를 성형하는 반면에 모래코아의 동공으로부터 배출된 경화되지 않은 결합제피복모래를 회수하는 단계, 사전에 결정된 시간에 취입헤드로 새로운 결합제피복모래의 계량공급을 중단하는 단계, 중공형의 모래코아를 성형토록 취입헤드로 회수된 결합제피복모래의 계량공급을 개시하는 반면에 이 모래코아의 공동으로부터 경화되지 않은 결합제피복모래를 배출하고 회수하는 단계, 회수된 결합제피복모래가 중공형코아성형에 소모될때까지 취입헤드로 회수된 결합제피복모래의 계량공급을 계속하는 단계와, 회수된 결합제피복모래의 계량공급을 중단하고 취입헤드로 새로운 결합제피복모래의 계량공급을 재개하여 취입헤드에서 새로운 결합제피복모래와 회수된 결합제피복모래가 동시에 계량공급되지 않게 하는 단계로 구성됨을 특징으로 하는 중공형 주물용 코아의 제조방법.The binder coating sand is supplied to the blowing head and introduced into the core pattern cavity through the input hole of the core box, and the sand of the core pattern cavity cures the binder to replace the hollow sand core with a catalyst for molding. In the manufacturing method of the hollow casting sand core in which the coated sand is discharged and recovered from the cavity of the hollow sand core, a binder is introduced into the blowing head in order to introduce the hollow sand core into the core pattern cavity to be cured. The step of metering the coated sand, discharging and recovering the uncured binder coated sand from the cavity of the hollow sand core, and forming an additional hollow type of cocoa by metering and supplying only the new binder coated sand to the blowing head. On the other hand, it recovers the uncured binder coating sand from the pores of the sand core. Stopping the metering supply of the new binder coating sand to the blowing head at a predetermined time, while starting the metering supply of the binder coating sand recovered to the blowing head so as to form the hollow sand core. Discharging and recovering the uncured binder coating sand from the cavity of the process, continuing to meter the recovered binder coating sand to the blowing head until the recovered binder coating sand is consumed for hollow core forming, and the recovered binder A hollow type comprising the steps of discontinuing metered supply of coated sand and resuming metered supply of new binder coated sand to the blowing head such that new binder coated sand and recovered binder coated sand are not metered at the same time. Method of manufacturing core for casting. 청구범위 5항에 있어서, 취입헤드로 계량공급된 결합제피복모래의 양이 코아패턴공동의 체적과 동일함을 특징으로 하는 방법.The method of claim 5 wherein the amount of binder coat sand metered to the blowing head is equal to the volume of the core pattern cavity. 청구범위 5항에 있어서, 새로운 결합제피복모래가 결합제피복모래의 벤치라이프에 대하여 약 1/10-1/3에 해당하는 시간동안 취입헤드로 계량공급됨을 특징으로 하는 방법.The method of claim 5 wherein the new binder sand is metered to the blowing head for a time equivalent to about 1 / 10-1 / 3 of the bench life of the binder sand. 청구범위 5항에 있어서, 경화되지 않은 결합제피복모래가 투입공을 통하여 중공형 모래코아로부터 배출되는 반면에 코아박스가 투입시의 동일위치에 놓여있음을 특징으로 하는 방법.The method according to claim 5, wherein the uncured binder coating sand is discharged from the hollow sand core through the input hole while the core box is in the same position at the time of input. 청구범위 8항에 있어서, 모래가 상부로 배출되고 만곡로를 따라 이동됨을 특징으로 하는 방법.The method of claim 8 wherein the sand is discharged to the top and moved along the curve. 청구범위 9항에 있어서, 상기 만곡로가 90°이상임을 특징으로 하는 방법.10. The method of claim 9, wherein the curve is greater than 90 degrees. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840001649A 1983-03-30 1984-03-29 Method for manufacturing core for hollow casting KR840007838A (en)

Applications Claiming Priority (2)

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US46668083A 1983-03-30 1983-03-30
US466680 1983-03-30

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KR840007838A true KR840007838A (en) 1984-12-11

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KR1019840001649A KR840007838A (en) 1983-03-30 1984-03-29 Method for manufacturing core for hollow casting

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EP (1) EP0126532A1 (en)
KR (1) KR840007838A (en)
AU (1) AU546308B2 (en)
BR (1) BR8401558A (en)
CA (1) CA1205613A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101280151B1 (en) * 2013-03-15 2013-06-28 강성태 Main control for hydraulic valve block casting sand-mold manufacturing method

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US9629628B2 (en) 2013-03-13 2017-04-25 Covidien Lp Surgical stapling apparatus
CN103706765B (en) * 2013-12-24 2016-01-27 上海爱仕达汽车零部件有限公司 The casting method that a kind of thin-section casting is leakage-preventing
CN107470566A (en) * 2017-09-25 2017-12-15 泰州康乾机械制造有限公司 Reduce the method and sand core structure of permanent mold casting thin-wall case flange turning position gas hole defect
WO2019161082A1 (en) * 2018-02-15 2019-08-22 Praxair Technology, Inc. Superior carbon adsorbents
CN112264575B (en) * 2020-10-20 2021-11-19 西安工程大学 Hollow ceramic core adopting die swinging method and preparation method thereof
CN113523196A (en) * 2021-06-05 2021-10-22 中国第一汽车股份有限公司 Sand core structure for 3D printing

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US3429848A (en) * 1966-08-01 1969-02-25 Ashland Oil Inc Foundry binder composition comprising benzylic ether resin,polyisocyanate,and tertiary amine
DE2557193C2 (en) * 1975-12-18 1983-01-13 Fomes S.A. Foundry and Metallurgical Supplies Corp., Chiasso Device for the production of hollow casting cores
US4204569A (en) * 1978-12-28 1980-05-27 Anatol Michelson Multi-core box apparatus for the manufacture of hollow mineral products, particularly foundry cores
US4232726A (en) * 1979-03-20 1980-11-11 Anatol Michelson Process and core box assembly for heatless production of hollow items of mineral granular material
US4291740A (en) * 1980-05-28 1981-09-29 Anatol Michelson Apparatus and method for heatless production of hollow items, for instance, foundry shell cores

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101280151B1 (en) * 2013-03-15 2013-06-28 강성태 Main control for hydraulic valve block casting sand-mold manufacturing method

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AU546308B2 (en) 1985-08-29
CA1205613A (en) 1986-06-10
EP0126532A1 (en) 1984-11-28
BR8401558A (en) 1984-11-13
AU2610584A (en) 1984-10-11

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