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1. 发明申请

WO2021001599A1 TEMPERING FURNACE FOR A GLASS SHEET AND A METHOD FOR HEATING A GLASS SHEET FOR TEMPERING 审中-公开
公开(公告)号：WO2021001599A1
公开(公告)日：2021-01-07
申请号：PCT/FI2020/050459
申请日：2020-06-25
申请人： GLASTON FINLAND OY
发明人： VEHMAS, Jukka , KETO, Kyösti
IPC分类号： C03B29/08 , C03B27/04 , F27B9/10 , F27B9/30 , F27B9/36
摘要： The invention relates to a tempering furnace for a glass sheet, which has a conveyor for the glass sheet (G), first convection blow means over the conveyor to heat the glass sheet by hot air jets blown onto its top surface, whereby the first convection blow means include a blower pressurising air sucked from the tempering furnace, air channels to lead air from the blower to blow enclosures (6) which have, in their bottom surface, first blow openings (9) from which air is discharged as jets towards the top and / or bottom surface of the glass sheet, electric elements (8) inside the blow enclosures, warming up air, and second convection blow means with which pressurised air external to the tempering furnace may be led to second blow nozzles (11) from which air is discharged as jets towards the bottom surface of the glass sheet, and the electric elements form a matrix-like separately-adjustable electric element field, whereby the heating effect of the air jets of the first convection blow means onto the glass sheet (G) is arranged to be adjustable by adjusting the feeding of electric current to the electric elements, and the blow nozzles (11) of the second convection blow means of the tempering furnace form a plurality of blow zones separately-adjustable in a matrix-like manner, the heating effect onto the glass sheet of the jets discharging from the second blow nozzles within these blow zones being arranged to be adjustable by adjusting the blow pressure of feed pipes. The invention additionally relates to a method for heating a glass sheet for tempering.

2. 发明申请

WO2020188147A1 TEMPERING FURNACE FOR GLASS SHEETS 审中-公开
公开(公告)号：WO2020188147A1
公开(公告)日：2020-09-24
申请号：PCT/FI2020/050168
申请日：2020-03-18
申请人： GLASTON FINLAND OY
发明人： VEHMAS, Jukka , KETO, Kyösti
IPC分类号： C03B29/08 , C03B27/04 , F27B9/10 , F27B9/30 , F27B9/36
摘要： The present invention relates to a tempering furnace (1) for a glass sheet (G), which has a conveyor (2) for the glass sheet (G), first convection blow means over the conveyor (2) to heat the glass sheet (G) by hot air jets blown on its top and/or bottom surface, whereby the first convection blow means include a blower (4) pressurizing air sucked from the tempering furnace (1), air channels to lead air from the blower (4) to blow enclosures (6) which have, at their bottom surfaces, first blow openings (9) from which air is discharged as jets towards the top and/or bottom surfaces of the glass sheet (G), electric elements (8) inside the blowing channels heating air, and second convection blow means with the aid of which pressurized air from outside the tempering furnace (1) may be led to second blow nozzles (11) from which air is discharged as jets towards the top and/or bottom surface of the glass sheet (G), and the electric elements (8) form a matrix-like separately adjustable electric element field whereby the heating effect of the air jets on the glass sheet (G) is arranged to be adjustable by adjusting the feeding of electric current to the electric elements (8), and the blow nozzles (11) of the second convection blow means of the tempering furnace (1) form blow zones, separately-adjustable in a matrix-like manner, the heating effect on the glass sheet (G) of the jets discharged from the second blow nozzles (11) inside the blow zones being arranged to be adjustable by adjusting the blowing pressure of feed pipes.

3. 发明申请

WO2019002672A1 METHOD FOR TEMPERING GLASS SHEETS 审中-公开
公开(公告)号：WO2019002672A1
公开(公告)日：2019-01-03
申请号：PCT/FI2018/050459
申请日：2018-06-13
申请人： GLASTON FINLAND OY
发明人： LYYTIKÄINEN, Pekka , VEHMAS, Jukka
IPC分类号： C03B27/04 , C03B27/044
摘要： A method for heat strengthening or tempering glass sheets of a glass load containing several glass sheets, in which the glass sheets are heated in a furnace to a tempering temperature and the glass load is transferred at a transfer speed (W) away from the furnace into a tempering unit, in which the actual quenching is conducted by blasting cooling air onto both surfaces of the glass sheets. By an initial blasting unit, located between the furnace and the quenching unit and divided into initial blasting zones in the direction transverse to the motion of the glass, is blasted compressed air onto the surface of the leading and trailing edges of a glass sheet, to the direction of which normal it is desired to straighten the end in order to decrease end- edge kink.

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