JPS55114457A - Core removing method - Google Patents

Core removing method

Info

Publication number
JPS55114457A
JPS55114457A JP2387279A JP2387279A JPS55114457A JP S55114457 A JPS55114457 A JP S55114457A JP 2387279 A JP2387279 A JP 2387279A JP 2387279 A JP2387279 A JP 2387279A JP S55114457 A JPS55114457 A JP S55114457A
Authority
JP
Japan
Prior art keywords
core
liquid
casting
hole
melt liquid
Prior art date
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.)
Granted
Application number
JP2387279A
Other languages
Japanese (ja)
Other versions
JPS6350106B2 (en
Inventor
Seiji Watabiki
Noboru Terunuma
Toshiaki Saito
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2387279A priority Critical patent/JPS55114457A/en
Publication of JPS55114457A publication Critical patent/JPS55114457A/en
Publication of JPS6350106B2 publication Critical patent/JPS6350106B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/002—Removing cores by leaching, washing or dissolving

Abstract

PURPOSE:To elute away the core inserted into the casting in a short time without corrosion of the casting by combination of chemical treatment and vibration treatment such as giving of vibrations to the casting to promote the convection of the liquid in contact with the core at the time of causing the core react with the liquid and removing the same. CONSTITUTION:A core 2 made of quartz or the like having a through-hole 1 is inserted by stainless steel 3 and is set at the intermediate position of liquid cells 5, 5a by a seal 9. Next, e.g., an NaOH melt liquid 4 of 500 deg.C (heated by an outside heating furnace 8) is flowed from the liquid cell 5 to the liquid cell 5a with the through-hole 1 as a channel by the air pressure from an air change-over valve 10 so that the core 2 is eluted away. According to this method, the convection of the alkaline melt liquid in the core through-hole is accelerated and the stagnating layer thickness in the melt liquid in contact with the core 2 becomes small, hence the exclusion of the melt liquid rich with the product of reaction and the supply of the fresh melt liquid to take place of this are accelerated. Further, as compared to autoclave treatment, the treating apparatus and running cost are cheaper.
JP2387279A 1979-02-27 1979-02-27 Core removing method Granted JPS55114457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2387279A JPS55114457A (en) 1979-02-27 1979-02-27 Core removing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2387279A JPS55114457A (en) 1979-02-27 1979-02-27 Core removing method

Publications (2)

Publication Number Publication Date
JPS55114457A true JPS55114457A (en) 1980-09-03
JPS6350106B2 JPS6350106B2 (en) 1988-10-06

Family

ID=12122529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2387279A Granted JPS55114457A (en) 1979-02-27 1979-02-27 Core removing method

Country Status (1)

Country Link
JP (1) JPS55114457A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205025A (en) * 1981-04-29 1982-12-16 Pk Biyuuroo Erekutorogidorabur Electric fluid type blast method and device for casting
EP2650062A3 (en) * 2012-04-09 2017-10-11 General Electric Company Composite core for casting processes, and processes of making and using same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0530321Y2 (en) * 1989-05-18 1993-08-03

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526338A (en) * 1975-06-30 1977-01-18 Kohlswa Jernverks Ab Removing and reclaiming method silicate moulding materials

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526338A (en) * 1975-06-30 1977-01-18 Kohlswa Jernverks Ab Removing and reclaiming method silicate moulding materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205025A (en) * 1981-04-29 1982-12-16 Pk Biyuuroo Erekutorogidorabur Electric fluid type blast method and device for casting
JPH0360579B2 (en) * 1981-04-29 1991-09-17 Puroekutono Konsuto* Byuroo Erekutorogidoraburiki An Ukurai* Ssr
EP2650062A3 (en) * 2012-04-09 2017-10-11 General Electric Company Composite core for casting processes, and processes of making and using same

Also Published As

Publication number Publication date
JPS6350106B2 (en) 1988-10-06

Similar Documents

Publication Publication Date Title
SE7909906L (en) BATH FOR CHEMICAL DEPOSITION OF TIN ON SURFACE MATERIAL
JPS5729577A (en) Automatic continuous sputtering apparatus
JPS55144450A (en) Reinforcing treatment of inorganic glass for watch
JPS644022A (en) Device for removing organic matter
JPS55114457A (en) Core removing method
FR2594367B1 (en) METHOD OF HOT PLATING BY COLAMINATION OF LI CONTAINING ALLOYS
JPS5321021A (en) Solution treatment method for pipe
FR2326386A1 (en) Float chamber for mfg. glass sheet - contains coolant pipes and inductors at outlet end for rapid cooling of sheet
JPS57155322A (en) Treatment of continuous cast strip of austenite-based stainless steel
JPS5720771A (en) Fixing roller for copying machine
JPS54107411A (en) Tempering of large diameter steel tube
JPS57104671A (en) Continuously spray pickling apparatus for strip
JPS56151883A (en) Heat pipe
JPS51128064A (en) Method of continuous filtering for moldig liquid
JPS612734B2 (en)
JPS59189320A (en) Electrode plate for liquid crystal display body
JPS57171667A (en) Stirring method of molten salt bath in case of surface treatment
JPS5575944A (en) Glass surface treating method
JPS5741302A (en) Method and device for steam treatment of ferrous sintered material
JPS5734031A (en) Method and apparatus for decreasing number of bubbles in formed quartz glass
JPS57101614A (en) Heat treatment for paper-making roll made of stainless alloy containing austenite phase
JPS5538968A (en) Heat treating method for turbine rotor
JPS5785933A (en) Heat treatment of prestressed concrete steel bar or steel wire
Renguang Study on the Ion Carburizing Process
DK457088A (en) METHOD AND TREATMENT FOR METAL TREATMENT