JPS5756152A - Processing method for casting defective - Google Patents

Processing method for casting defective

Info

Publication number
JPS5756152A
JPS5756152A JP13152680A JP13152680A JPS5756152A JP S5756152 A JPS5756152 A JP S5756152A JP 13152680 A JP13152680 A JP 13152680A JP 13152680 A JP13152680 A JP 13152680A JP S5756152 A JPS5756152 A JP S5756152A
Authority
JP
Japan
Prior art keywords
block
hip
cast
si3n4
processing method
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
JP13152680A
Other languages
Japanese (ja)
Other versions
JPS5914290B2 (en
Inventor
Hisashi Takada
Nobuyasu Kawai
Hiroshi Takigawa
Masaru Ishii
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP13152680A priority Critical patent/JPS5914290B2/en
Publication of JPS5756152A publication Critical patent/JPS5756152A/en
Publication of JPS5914290B2 publication Critical patent/JPS5914290B2/en
Expired 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
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • B22D31/002—Cleaning, working on castings

Abstract

PURPOSE:To seal pores of a cast easily by pressing a block, formed by burying a cast material of defective structure in powder selected from the group consisting of Bn, Si3N4, etc., in a prescribed hot hydrostatic pressure atmosphere (HIP). CONSTITUTION:A cast material having a defective structure is buried in refractory material powder selected from the group consisting of Bn, Si3N4, Al2O3, ZrO2, and bicoal glass. Then, the said refractory material powder and cast material are made into a block by cold hydrostatic pressure treatment. This block is put in a capsule for molding and HIP treatment HIP is carried out. Thus, pores in the caset material disappear to eliminate the structural defection.
JP13152680A 1980-09-24 1980-09-24 Casting defect treatment method Expired JPS5914290B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13152680A JPS5914290B2 (en) 1980-09-24 1980-09-24 Casting defect treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13152680A JPS5914290B2 (en) 1980-09-24 1980-09-24 Casting defect treatment method

Publications (2)

Publication Number Publication Date
JPS5756152A true JPS5756152A (en) 1982-04-03
JPS5914290B2 JPS5914290B2 (en) 1984-04-04

Family

ID=15060119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13152680A Expired JPS5914290B2 (en) 1980-09-24 1980-09-24 Casting defect treatment method

Country Status (1)

Country Link
JP (1) JPS5914290B2 (en)

Also Published As

Publication number Publication date
JPS5914290B2 (en) 1984-04-04

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