METHOD FOR MANUFACTURING SOFT MAGNETIC ELECTRICAL CONTACT MATERIAL HAVING SELF-ARC BLOWOUT PROPERTY AND PRODUCT THEREOF

• Main Authors: ZHANG, XIUFANG, LIN, WANHUAN, SONG, ZHENYANG, WENG, WEI, BAI, XIAOPING
• Format: Patent
• Language: Chinese; English; French
• Published: 07.05.2015
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CASTING; CHEMISTRY; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; FERROUS OR NON-FERROUS ALLOYS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; RELAYS; SELECTORS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

Provided are a method for manufacturing a soft magnetic electrical contact material having a self-arc blowout property and a product thereof. The contact material is itself a compound material, capable of using a short-circuit current to generate an electromagnetic force itself when the contact breaks the current, so as to increase the arc blowout capacity of an arc-extinguishing system of a circuit breaker, achieving faster electric arc movement, reducing burnout of the contact, and improving the aim of short-circuit breaking capacity. A major feature of this type of contact material is being able to be made into various specifications and various forms, to be conveniently applied to various types of alternating current circuit breakers having an arc-extinguishing mechanism. The method for manufacturing the contact material is simple, and the material can be formed by mixing and pressing soft magnetic powders with powders of existing contact material raw material using a mould pressing method, can be formed