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Patent Searching and Data


Title:
ELECTRIC FURNACE IN GLASS FORMING APPARATUS
Document Type and Number:
Japanese Patent JPS62182120
Kind Code:
A
Abstract:

PURPOSE: The titled apparatus, obtained by constructing the inside wall surface of an electric furnace in a glass forming apparatus from glass tubes and capable of preventing the oxidative corrosion of the inside wall and giving molded articles having good molded surfaces.

CONSTITUTION: An electric furnace 1 having quartz glass tubes 46 integrally fixed on the inside wall surfaces of a cylindrical heat transfer member 47 of a cylindrical heater part 45 constituted of the cylindrical heat transfer member 47, resistance 48 wires embedded in the heat transfer member 47 and a metallic cover 49 integrally covering the outer periphery of the heat transfer member 47 in a glass forming apparatus is fixed on a table 15 through a heat insulating material 50 and supporting stands 51.


Inventors:
NAKAJIMA TAKAO
Application Number:
JP2167686A
Publication Date:
August 10, 1987
Filing Date:
February 03, 1986
Export Citation:
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Assignee:
OLYMPUS OPTICAL CO
International Classes:
C03B11/00; C03B23/00; C03B29/02; C03B35/00; (IPC1-7): C03B11/00; C03B23/00; F27D11/02
Domestic Patent References:
JPS547485U1979-01-18
JPS57105701A1982-07-01
JPS6121927A1986-01-30
Attorney, Agent or Firm:
Takeshi Nara