阅读说明：本技术 在通过浮法制造玻璃的装置的纵向中具有楔形的玻璃的制造 (Production of glass having a wedge shape in the longitudinal direction of a device for producing glass by the float process ) 是由 P-H.盖林 E.巴赫 于 2019-01-29 设计创作，主要内容包括：本发明涉及一种制造楔形玻璃的方法,该方法适用于通过将玻璃带漂浮在熔融金属浴上来制造平板玻璃的装置中进行实施,所述方法包括临时改变所述装置的至少一个机械参数的步骤,所述临时改变会引起玻璃带沿纵向厚度的局部改变。(The invention relates to a method for producing wedge-shaped glass, which is suitable for implementation in an apparatus for producing sheet glass by floating a glass ribbon on a molten metal bath, said method comprising the step of temporarily changing at least one mechanical parameter of said apparatus, said temporary change causing a local change in the thickness of the glass ribbon in the longitudinal direction.)

1. A method (S) for producing wedge-shaped glass (11), which is suitable for implementation in an apparatus for producing sheet glass by floating a glass ribbon (8) on a bath (7) of molten metal, preferably molten tin, wherein the glass ribbon (8) is driven in a longitudinal direction of movement (L) from an upstream side of the bath (3) to a downstream side (4) of the bath, wherein molten glass is poured onto the molten metal (7) at the upstream side of the bath (3), and the glass ribbon (8) is moved away from the bath (3) at the downstream side of the bath, wherein the glass ribbon (8) is drawn at a speed V, which is referred to as the lehr speed, by means of extraction rolls (9) located downstream of the bath (1), wherein the glass ribbon (8) is additionally drawn in a transverse and/or axial direction by means of pairs of side wheels (10) located on both sides of the bath (1) in contact with the upper surface of the glass ribbon (8), said method (S) is characterized in that it comprises a step of temporarily varying at least one mechanical parameter of said device, said temporary variation causing a local variation in the thickness of said glass ribbon (8) in its longitudinal direction.

2. The method (S) according to claim 1, wherein the at least one mechanical parameter is the annealing furnace speed V, which preferably varies between 600m/h and 1400m/h, preferably between 900m/h and 1200 m/h.

3. Method (S) according to one of claims 1 and 2, characterized in that said at least one mechanical parameter belongs to the group comprising:

specific speed R of circumferential rotation of at least one of said pairs of side wheels (10)_xPreferably it is 0.1-0.2, preferably 0.12-0.15, and/or

An inclination of at least one of the side wheels (10), which is preferably-5 ° to 30 °.

4. A wedge-shaped glass (11) obtained using the manufacturing method (S) according to any one of claims 1 and 2.

5. Wedge-shaped glass (11) suitable for being integrated into glazing for land, water or air transport vehicles, for buildings, urban installations or interior decoration, characterized in that it comprises shadow image defects oriented along its theoretical wedge-shaped portion.

6. Wedge-shaped glazing as claimed in one of claims 4 and 5, characterized in that it comprises a region suitable for a head-up display (HUD) whose wedge angle value varies linearly along its theoretical wedge portion, preferably starting from the central position of said region (HUD).

7. The wedge of glass of any one of claims 4 to 6, wherein the wedge of glass comprises a region suitable for a head-up display (HUD) and a different region satisfying the following equation:

where δ is the wedge angle, n is the refractive index of the glass, d is the thickness of the glass, R is the radius of curvature of the glass at the location of the incident beam, and φ is the angle of incidence of the beam with respect to a perpendicular on the tangent of the glass.

8. A control system (20) for controlling an apparatus for manufacturing flat glass by floating a glass ribbon (8) on a bath (7) of molten metal, preferably molten tin, wherein the glass ribbon (8) is driven in a longitudinal direction of movement (L) from an upstream side of the bath (3) to a downstream side (4) of the bath, wherein molten glass is poured onto the molten metal (7) at the upstream side of the bath (3), and wherein the glass ribbon (8) is moved away from the bath (3) at the downstream side of the bath (3), wherein the glass ribbon (8) is stretched by means of extraction rolls (9) located downstream of the bath (1) at a speed V called lehr speed, wherein the glass ribbon (8) is further stretched in a transverse and/or axial direction by means of pairs of side wheels (10) located on both sides of the bath (1) in contact with the upper surface of the glass ribbon (8), the control system (20) being characterized in that it comprises at least one module (21), adapted to command a temporary variation of at least one mechanical parameter of the device so as to cause a local variation of the thickness of the glass ribbon (8) in the longitudinal direction (L).

9. The control system (20) of claim 8, comprising means (24) for controlling the thickness of the glass ribbon (8) at the location of the bath (3).

10. Apparatus for manufacturing flat glass by the float process, said apparatus being suitable for carrying out the method (S) according to one of claims 1 and 2, said apparatus comprising a control system (20) according to one of claims 8 and 9.

11. A computer program downloadable from a communication network and/or stored on a storage medium adapted to be read by a computer and/or executed by a processor, comprising instruction code for carrying out the manufacturing method of one of claims 1-3.

12. A data storage medium having stored thereon a computer program as claimed in claim 11.

13. A laminated glass (14) for a glazing unit, the laminated glass (14) comprising a viscoelastic plastic interlayer (12) between two glass sheets (11,13), at least one of the glass sheets being a wedge-shaped glass (11) according to one of claims 4 to 7.

14. The laminated glass (14) according to claim 13, wherein one of the sheets has a thickness of 2.1mm and the other has a thickness of less than 2.1mm, preferably 1.8mm, further preferably 1.6mm, preferably 1.4mm, further preferably 1.1mm, further preferably 0.7 mm.

15. Use of a laminated glass (1) according to any one of claims 13 and 14 as a glazing for land, water or air transport vehicles, a glazing for buildings, urban installations or interior finishing, preferably as a windscreen, side, quarter or rear window for motor vehicles.