Nippon Electric Glass Co., Ltd.

Riku Yamashiro

Hiroki Mori

Naotoshi Inayama

Takayoshi Saito

Koichi Mori

In a method of manufacturing a glass film, in a cutting step, a crack (CR) formed in a non-product portion (Gc, Gc) along a longitudinal direction of a glass film (G) is guided by a guiding member (a,b) so as to propagate to an outer end portion (Gd) of the non-product portion (Gc, Gc) in a width direction.

Method for producing glass film

A position of a band-shaped glass film () conveyed downward in a vertical direction is detected by a detection unit (), and the conveyance speed of each of a plurality of conveyance devices (, and) provided in a horizontal conveyance path (R) is controlled based on detection data in the detection unit (). Under a condition that, of the plurality of conveyance devices (, and), the conveyance device () located on a most upstream side is defined as an upstream side conveyance device, and the conveyance devices (, and) on a downstream side of the upstream side conveyance device () are defined as downstream side conveyance devices, an upper limit and a lower limit are set to the conveyance speed of each of the downstream side conveyance devices (, and).

Method for manufacturing strip-shaped glass film

A production method for a glass roll includes a start preparation step (S) of feeding-out a first lead film (LF) coupled to a starting end portion (GFa) of a first glass film (GF) from an unwinding device () and allowing a winding device () to wind the first lead film (LFafter passing of the first lead film (LF) through a thermal film-forming device (),). The start preparation step (S) includes a temperature increasing step of causing the thermal film-forming device () to be increased in temperature to a film-forming temperature. The first glass film (GF) reaches the thermal film-forming device () before the thermal film-forming device () is increased in temperature to the film-forming temperature.

Glass roll production method

In a manufacturing method of a glass roll, a transport device transports a glass film coupled to lead films via coupling portions. The transport device separates the lead films and/or the coupling portions from a heating roller when the lead films and/or the coupling portions pass by the heating roller.

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Shiga, Japan

Riku Yamashiro