SU591417A1

SU591417A1 - Device for hardening sheet glass

Info

Publication number: SU591417A1
Application number: SU762360072A
Authority: SU
Inventors: Алексей Георгиевич Шабанов; Николай Алексеевич Капков; Валерий Иванович Агибалов; Николай Никитович Качалов
Original assignee: Всесоюзный научно-исследовательский институт технического и специального строительного стекла
Priority date: 1976-05-17
Filing date: 1976-05-17
Publication date: 1978-02-05

Description

1one

I Изобретение относитс к производству упрочненного листового стекла и преимущественно может бы,ть использовано на стекольных заводах при производстве закаленного листового стекла , примен емого дл остеклени транспорта .I The invention relates to the production of toughened sheet glass and can advantageously be used in glass factories in the production of tempered sheet glass used for glazing transport.

Известно устройство дл закалки листового стекла с помощью пр мого контакта, в котором элементы, контактирующие с поверхностью стекла, выполнены в виде отдельных жестких пластин, св занных с непрерывными т говыми элементами, надетыми на приводные барабаны A device for tempering sheet glass is known by direct contact, in which the elements in contact with the surface of the glass are made as separate rigid plates connected with continuous traction elements mounted on driving drums.

Недостаток этого устройства трудность в обеспечении равномерного контакта жестких пластин с поверхностью стеклд. Неравномерность контакта усиливаетс короблением пластин за счет температурных деформаций от контакта с гор чим стеклом, что приводит к неравномерному охлаждению стекла по поверхности и в итоге отрицательно вли ет, на качество продукции.The disadvantage of this device is the difficulty in ensuring uniform contact of the rigid plates with the glass surface. The uneven contact is enhanced by the warping of the plates due to thermal deformations from contact with hot glass, which leads to uneven cooling of the glass over the surface and, as a result, negatively affects the product quality.

Известно также устройство дл закалки листового стекла, содержащее контактирующие со стеклом элементы, выполненные в виде сло теплопроводного металлического порошка, нанесенного на подложку, и привод с барабанами 2 .It is also known a device for tempering sheet glass, containing elements in contact with glass, made in the form of a layer of heat-conducting metal powder deposited on a substrate, and driven with drums 2.

В указанном устройстве металлический порошок удерживаетс с помощью кремнийорганической св зки, котора снижает теплопроводность сло и ухудшает качество стекла за счет снижени скорости охлаждени в процессе закалки .In this device, the metal powder is retained with a silicon binder, which reduces the thermal conductivity of the layer and degrades the quality of the glass by reducing the cooling rate during the quenching process.

Цель изобретени - повышение качества стекла.The purpose of the invention is to improve the quality of glass.

Это достигаетс тем, что в известном устройстве дл закалки листового стекла, содержащем установленные поThis is achieved by the fact that in a known device for tempering sheet glass containing

обе стороны стекла контактирующие с ним элементы, выполненные в виде сло теплопроводного металлического порошка , нанесенного на подложку, и привод с барабанами, предусмотрены охлаждаекые магниты, установленные по обе стороны контактирующих элементов, механизмы регулировани толщины сло порошка , причем подложка выполнена в виде эластичной ленты, а барабаныBoth sides of the glass are in contact with the elements, made in the form of a layer of heat-conducting metal powder deposited on the substrate, and driven with drums, there are cooling magnets installed on both sides of the contacting elements, mechanisms controlling the thickness of the powder layer and the drums

привода - магнитными.drive - magnetic.

Claims

The glass is passed between ribbons carrying a layer of powder in contact with the glass. In order to cool the powder and ribbons heated by glass, the magnet holding the powder on the belt. have cavities through which cooling fluid is pumped — preferably water. After the glass exits the unit, the powder that was in contact with it returns to C5un Kera, where it is finally cooled and re-fed to the tape. FIG. 1 shows a device, a longitudinal section; in fig. 2 - section A-A of FIG. 1. The installation contains closed elastic bands 1, tensioned on the drive magnetic drums 2, between which magnets 3, made hollow, are installed in the immediate vicinity of the tape branches facing the glass. The upper hopper 4 is mounted at the drum, at the entrance to the gap between the strips 1 and serves to collect the powder 5 from the upper belt and has the wing 6 for stirring and dropping the powder from the knife 7, which can separate the powder from the belt. Under the lower pair of drums, a bunker 8 is installed with a K1X1 flaw 9, which has the ability to mix and feed porosity into the action of the magnetic field lines of the drum. On the upper bunker 4 and the lower bunker 8, a mechanism31 "1 10 is mounted to adjust the thickness of the layer of powder 5 on the elastic tapes 1. The glass to be hardened passes between the elastic bands 1, bearing on it a layer of heat-powdered powder 5V, which is magnetically magnetic. Glass and powder are in constant contact. The tapes 1 are set in motion with magnetic speeds at a given speed. The magnetic field of the drums 2 pulls the powder out of the bunker 4 and 8. The powder layer during the rotation of the drums and the belt movement enters the zone of action of the magnetic field of hollow cooled magnets 3 Heat from powder 5. heated by glass through the belts 1 and the walls of hollow magnets 3, retaining a layer of powder on the tape is taken off with a cooling liquid — mainly water. The cooling rate is controlled by the thickness of the layer of powder 5 on the belt, which is determined by the cooling mechanisms T.O. At the exit of the glass from the installation, the powder is captured by the magnetic field of the drums. On a belt tensioned on the upper drums, a layer of powder rises on the upper branch of the belt, moves to the bunker 4, is separated with the help of the knife 7 from the belt 1, and is dropped by the impeller 6 into the bunker 4. on tape. The powder layer on the belt, pulled over the lower pair of drums, is poured into the lower bin B, to the impeller 9, by means of which it is fed into the zone of action of the magnetic drum and again applied to the tape. In the proposed device, a high uniformity of the contact of the cooling surfaces with glass is achieved, which improves the quality of the glass. Apparatus of the Invention A device for tempering sheet glass containing elements in contact with it installed on both sides of the glass, made in the form of a layer of heat dissipation of metal powder deposited on the substrate, and driven from a drum,: oh that is that, in order to improve the quality of glass, it is equipped with cooled magnets installed on both sides of the contacting elements and mechanisms for controlling the thickness of the powder layer, the substrate being made in the form of an elastic tape, and the drive drums are magnet bubbled. Sources of information taken into account in the examination: 1.Patent of France 1504128, cl. From 03 to 23.10.67.

2. Patent of the USA 3694182, kl.65-288; d6.09.72.

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