Title:
【発明の名称】フロ-ト法ガラス製板における溶融ガラス量の制御方法
Document Type and Number:
Japanese Patent JPS5919888
Kind Code:
B2
Abstract:
In a float process of flat glass production, the width of a glass ribbon formed by discharging a molten glass onto a molten metal bath is controlled in response to the temperature of a molten glass to be supplied to the molten metal bath by regulating a tweel to manipulate the rate of supplying a molten glass to the bath. Further to minimize a fluctuation of the glass ribbon width, either of two different feedback control modes, an integral control mode and a proportional-plus-integral control mode, is employed depending on whether or not an error between a measured width and a desired value is within a predetermined range of the error. Preferably the control is achieved in accordance with a sampled-data control system.
Inventors:
MASUDA HIROSHI
SAKAI HIROHIKO
SAITO YOSHIHARU
SAKAI HIROHIKO
SAITO YOSHIHARU
Application Number:
JP6930779A
Publication Date:
May 09, 1984
Filing Date:
June 02, 1979
Export Citation:
Assignee:
CENTRAL GLASS CO LTD
International Classes:
C03B18/02; C03B18/04; G05B7/02; G05B21/02; G05D5/06; (IPC1-7): C03B18/04
Attorney, Agent or Firm:
Tsukimura Shigeru