Title:
ELECTRIC ARC HEATING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/012969
Kind Code:
A1
Abstract:
The present invention relates to the technical field of electric arc heating and, specifically, relates to an electric arc heating method and an apparatus, for use in heating a substrate formed by compressing and/or sintering a powder. The electric arc heating method comprises: configuring a metal electrode to be in contact and connected with the substrate, the melting point of the metal electrode being greater than a target heating temperature; in a vacuum environment, bombarding the side of the metal electrode facing away from the substrate by means of an electrical arc bombardment, thus heating the metal electrode; and heating the substrate via the metal electrode by means of heat conduction. The electric arc heating method and apparatus for the substrate formed by compressing and/or sintering the powder of the preset invention, utilizing the characteristics of high density and high temperature resistance of a cathode of an electric arc generator, allow the cathode to be heated by an electric arc, prevent the metal electrode from experiencing a phenomenon of cracking damages under the bombardment of a large current, and indirectly heat the substrate formed by compressing or sintering the powder with the generated high temperature by means of contact conduction.
More Like This:
Inventors:
HON CHUNPAN (CN)
Application Number:
PCT/CN2020/101324
Publication Date:
January 28, 2021
Filing Date:
July 10, 2020
Export Citation:
Assignee:
HON CHUNPAN (CN)
International Classes:
H05B7/22; H05B7/06
Foreign References:
| CN210431949U | 2020-04-28 | |||
| CN110636660A | 2019-12-31 | |||
| CN2129766Y | 1993-04-14 | |||
| US4716272A | 1987-12-29 |
Attorney, Agent or Firm:
SHENZHEN ZHIHUIYUANJIAN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: