发明名称 Apparatus and method for heat treating glass sheets
摘要 Disclosed is an apparatus and method for heat treating glass sheets, and in particular for heat treating very thing glass sheets arranged in closely spaced stacks. The glass sheets are positioned on a moving belt such that their major surfaces are substantially perpendicular to a direction of belt travel through the apparatus to aid in producing a uniform temperature profile within the glass sheets. The apparatus comprises air curtains positioned at the inlet and outlet of the apparatus to minimize the ingress of particulate into the apparatus. A reduced velocity of heated air flow within a lower portion of the apparatus relative to a velocity of the heated air in an upper portion of the apparatus causes particulate to drop out of the lower portion air flow. A rotating brush and vacuums positioned adjacent a lower portion of the belt assist in removing particulate from the moving belt.
申请公布号 US8857215(B2) 申请公布日期 2014.10.14
申请号 US201213473130 申请日期 2012.05.16
申请人 Corning Incorporated 发明人 Dale George O.;Tinz Juergen
分类号 C03B29/10 主分类号 C03B29/10
代理机构 代理人 Able Kevin M.
主权项 1. A method of heat treating glass sheets comprising: transporting a plurality of glass sheets through an enclosure on a continuously moving belt, the plurality of glass sheets being oriented in an upright position such that major surfaces of the glass sheets are substantially perpendicular to a direction of transport; directing a flow of heated air between the glass sheets, the heated air heating the glass sheets to a hold temperature, wherein the hold temperature is in a range from about 25° C. to about 45° C. below an anneal temperature of the glass sheets; maintaining the glass sheets at the hold temperature for a predetermined period of time; cooling the glass sheets after the predetermined period of time; and wherein the belt is cleaned by a rotating brush in contact with the belt as the glass sheets are transported through the enclosure.
地址 Corning NY US