Patent ID: 9598302
Date: 2017-03-21
CPC Classifications: C03B

Claim:
1. A float bath which receives a metal melt, and allows a glass melt poured onto the metal melt through a spout lip to float and move from upstream to downstream, the float bath comprising: a guiding unit provided at a part where the glass melt is poured, coming into contact with the sides of the poured glass melt to guide a sidewise spreading path of the glass melt to expand sidewise spreading of the poured glass melt, wherein: the guiding unit comprises an expanding part to expand the sidewise spreading of the glass melt, and a leaving part to allow the glass melt to leave, the guiding unit has a shape that a downstream side end in the float bath reduces in height toward an edge, such that an edge of the guiding unit in contact with the glass melt has a wedge-like pointed shape, a part of the expanding part comes into contact with the side of the glass melt, at least a portion of the part of the expanding part coming into contact with the side of the glass melt is formed in a curved shape along a travel direction of the glass melt, the expanding part is constructed such that a tangent direction of a part the poured glass melt initially comes into contact with forms an angle between 10° and 30° with a lengthwise direction of the side of the glass melt before the contact with the expanding part, and an inner side of the expanding part is formed in a curved shape as a whole from a part where an end of the spout lip is located.