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1. JP1994063722 - 酸化活性金属の無酸化鋳造方法

Office Japan
Application Number 1992214286
Application Date 11.08.1992
Publication Number 1994063722
Publication Date 08.03.1994
Grant Number 2849509
Grant Date 06.11.1998
Publication Kind A5
IPC
B22D 18/06
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
18Pressure casting; Vacuum casting
06Vacuum casting, i.e. making use of vacuum to fill the mould
B22D 21/02
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
21Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
02Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
B22D 21/06
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
21Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
06Casting non-ferrous metals with a high melting-point, e.g. metallic carbides
B22D 23/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
23Casting processes not provided for in groups B22D1/-B22D21/97
A61C 13/007
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
13Dental prostheses; Making same
007Prostheses with bases, e.g. palates or plates; Making same
A61C 13/01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
13Dental prostheses; Making same
007Prostheses with bases, e.g. palates or plates; Making same
01Bases
CPC
B22D 18/06
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
18Pressure casting; Vacuum casting
06Vacuum casting, i.e. making use of vacuum to fill the mould
A61C 13/20
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
13Dental prostheses; Making same
20Methods or devices for soldering, casting, moulding or melting
Applicants 友和産業株式会社
Inventors 松原 則夫
宮崎 昌一郎
Agents 茶野木 立夫
Title
(JA) 酸化活性金属の無酸化鋳造方法
Abstract
(JA)


【目的】 鋳造物の酸化による表面肌劣化及び硬化を防
止する酸化活性金属の無酸化鋳造方法を提供する。


【構成】 溶解室圧力P[1 ]>鋳造室圧力P[2 ]の条件を維
持して溶解室及び鋳造室から排気し、ついで乾燥不活性
ガスを溶解室に圧入し、前記P[1 ]>P[2 ]の条件下で溶解
室の雰囲気ガスに方向性を与えて鋳造室の鋳型内雰囲気
を不活性ガスで置換して鋳造室から排気して、溶解室及
び鋳造室を無酸素雰囲気にし、ついで溶解鋳物材料を溶
解し、鋳造室の鋳型に注湯して精密鋳造することを特徴
とする酸化活性金属の無酸化鋳造方法。