Heat-resistant equipment for the handling and transport, particularly when hot, of metal or glass foil, namely, conveyor rollers; and structural parts of conveyor rollers, namely, metal joining pieces for such rollers, and roller assemblies comprising a ceramic tube or cylinder and metal joining pieces Structural parts of industrial furnaces, namely, roller units used in annealing furnaces and in furnaces for the fabrication of glass
2.
Kit for mechanically coupling a rod to a ceramic element
A kit of parts includes a ceramic element comprising a cylindrical bore having at least one recess, and a rod comprising an outer tube comprising a jutting portion adjacent to an insert portion. An outer tube wall mates with the cylindrical ceramic bore. An outer tube bore comprises a cylindrical portion. An outer tube projecting member is insertable into a recess in the cylindrical bore. An inner mandrel insertable into the outer bore stabilizes a projecting member in a recess to couple the rod to the ceramic element.
F16B 21/16 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft
F16D 11/16 - Clutches in which the members have interengaging parts with clutching members movable otherwise than only axially
F16B 1/00 - Devices for securing together, or preventing relative movement between, constructional elements or machine parts
F16D 11/00 - Clutches in which the members have interengaging parts
3.
Conveyor roll assembly, use thereof and end cap for a conveyor roll
An integral metal end cap for use in a conveyor roll assembly is suitable for use in an environment subject to significant temperature variation. The metal end cap comprises a first end connectable to rotary means, and a second end comprising an integral body adapted to fit over the end of a ceramic spool. The integral body contains a torque transmission portion having a plurality of deformable strips enabling transmission of torque during temperature variations. A conveyor roll assembly comprises a ceramic spool having a longitudinal axis and, at least at one end of the ceramic spool, a metal end cap as described.
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
A conveyor roll assembly for use at high temperature comprises (a) a ceramic spool having a flexural strength of at least 15 MPa and an external diameter D and (b) a torque transmitter and support of a general cylindrical shape and having a longitudinal axis, comprising a body and (b1) a supporting portion comprising at least one cylindrical supporting surface and (b2) a connecting portion that is mechanically and resiliently deformed, comprising at least two distinct connecting surfaces, frictionally connecting the torque transmitter and support to the ceramic spool. At least one end of the ceramic spool has an axial, centered bore of a diameter 10 mm≤d≤¾ D, and a depth Dd≥1.5 d. The torque transmitter and support is housed at least partially in the bore of the ceramic spool.
Kit of parts for mechanically coupling a ceramic element (1) to a rod comprising an outer surface made of metal, wherein: (a) the ceramic element (1) comprises a cylindrical ceramic bore (2) defined by a cylindrical bore wall and extending along a longitudinal axis, X1, wherein the cylindrical bore wall comprises at least one recess (4), and wherein the rod comprises: (b) an outer tube (8) comprising a jutting portion (8p) adjacent to an insert portion (8i), and further comprising: - an outer tube wall made of metal mating the cylindrical ceramic bore, - an outer tube bore comprising a cylindrical portion, (c) at least one projecting member (7b, 7p) having a geometry insertable into the at least one recess (4) of the ceramic element, (d) an inner mandrel (5) extending along an axis and having radial dimensions suitable for being inserted into the outer tube bore, (e) the insert portion (8i) of the outer tube can be inserted into the ceramic bore with the at least one projecting member (7b, 7p) engaged in the at least one recess (4), and with the jutting portion (8p) jutting out of the ceramic element (1), and wherein (f) the inner mandrel can be inserted into the outer tube bore, such that the at least one projecting member (7b, 7p) is resiliently stabilized in the at least one recess by a stabilizing portion (5s) of said inner mandrel, and the rod is thus mechanically coupled to the ceramic element in that the outer tube cannot translate along the longitudinal axis, X1, with respect to the ceramic bore wherein the stabilizing portion (5s) of said inner mandrel (5) is radially resilient, such that the at least one projecting member (7b, 7p) can be dislodged from the at least one recess (4) upon application onto the outer tube of a force greater than a predetermined threshold force required for decoupling the metal rod from the ceramic element.
F16B 21/16 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft
F16D 11/16 - Clutches in which the members have interengaging parts with clutching members movable otherwise than only axially
6.
CRUCIBLE FOR CRYSTALLIZATION OF MOLTEN SILICON, PROCESS FOR ITS MANUFACTURE AND USE THEREOF
Crucible for the crystallization of molten silicon coated with silicon nitride where embedded SiO2 particles having a particle size up to 500 µm and a surface density ≥ 100 cm-2, emerge in the inner volume of the crucible enabling the production of silicon ingot with improved electrical properties.
C30B 35/00 - Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
7.
CONVEYOR ROLL ASSEMBLY, USE THEREOF AND END CAP FOR A CONVEYOR ROLL
The present invention relates to conveyor roll assembly suitable for use in an environment subject to important temperature variation and to an integral end cap. The integral end cap ensures an efficient torque transfer to the ceramic spool thanks to its resilience due to the end cap deformation during the assembly of the end cap on the ceramic spool.
B65G 39/00 - Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
B65G 39/02 - Adaptations of individual rollers and supports therefor
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
A conveyor roll assembly (1) for use at high temperature comprising a) a ceramic spool (2) having a flexural strength of at least 15 MPa and an external diameter D and, b) a torque transmission and support means (3) of a general cylindrical shape and having a longitudinal axis, comprising a body and b1. a supporting portion comprising at least one cylindrical supporting surface (10) and, b2.a connecting portion that is mechanically and resiliently deformed, comprising at least two distinct connecting surfaces, frictionally connecting the torque transmission and support means (3) to the ceramic spool (2), characterized in that at least one end of the ceramic spool has an axial, centered bore of a diameter 10mm ≤ d ≤ 3/4 D, preferably ≤ 1/3D and a depth Dd ≥1.5 d and in that the torque transmission and support means (3) is provided in the at least said bore of the ceramic spool (2).
The present invention relates to refractory article used at high temperature having a silica, calcium silicate or mullite matrix with at least a surface having an open porosity filled at least partially with a sulfate, phosphate, carbonate salt or a mixture of thereof. The objective of the invention is to make the article resistant to the corrosion and build-up of non-ferrous metals and their alloys.
C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
C04B 35/16 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silicates other than clay
The present application relates to a protective and abradable coating composition for application on rolls and more particularly to conveyor rolls comprising an abradable coating for use in high temperature applications, to a process for making such rolls and to the use thereof. Corrosion by aluminium melt is reduced and build-up substances are removed by friction. The life time of the roll is then increased. The coating comprises 83-98 wt% of an aggregate comprising particles of Si3N4, SiC or SiAION or a mixture thereof and 2-17 wt% of submicronic particles of AI2O3, SiO2, ZrO2, CeO2, Y2O3 or a mixture thereof.
C04B 35/565 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides based on silicon carbide
B21B 39/00 - Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
C03C 17/00 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
C03C 17/22 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with other inorganic material
C04B 35/584 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on silicon nitride
C04B 35/597 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on silicon oxynitrides
C04B 35/626 - Preparing or treating the powders individually or as batches
C04B 41/50 - Coating or impregnating with inorganic materials
C23C 4/10 - Oxides, borides, carbides, nitrides or silicidesMixtures thereof
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
The present invention concerns a crucible (1) for the production of crystalline semiconductor ingots, said crucible comprising an inner volume defined by a floor (1a) which top surface comprises a planar portion defining a first horizontal plane (H) and peripheral side walls (1b) each comprising an inner surface comprising a planar portion substantially vertical, defining a substantially vertical plane (V), and normal to the first, horizontal plane (H), said side walls (1b) joining the floor (1a) at the perimeter of the latter by forming a radius of curvature, R1, of at least 1 mm, characterized in that, the intersecting line (hv) forming the intersection between the first, horizontal plane (H) and the substantially vertical planes (V) defined by the substantially vertical planar portions of each side wall (1b) is entirely located on the side walls (1b), on the floor (1a), or in the inner volume of the crucible.
C30B 11/00 - Single-crystal-growth by normal freezing or freezing under temperature gradient, e.g. Bridgman- Stockbarger method
C30B 11/14 - Single-crystal-growth by normal freezing or freezing under temperature gradient, e.g. Bridgman- Stockbarger method characterised by the seed, e.g. its crystallographic orientation
C30B 35/00 - Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
C30B 28/06 - Production of homogeneous polycrystalline material with defined structure from liquids by normal freezing or freezing under temperature gradient
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
12.
CRUCIBLE AND METHOD FOR THE PRODUCTION OF A (NEAR) MONOCRYSTALLINE SEMICONDUCTOR INGOT
The present invention concerns a crucible (1) for the production of crystalline semiconducting material ingots, such as silicon, said crucible comprising peripheral side walls (1b) and a floor (1a) at least a portion of said floor being coated with a top layer (2), characterized in that, said top layer (2) has a thickness, δ, of at least 500 μm and in that, at a deformation temperature below 1400 °C said top layer is plastically or viscously deformable.
C30B 11/00 - Single-crystal-growth by normal freezing or freezing under temperature gradient, e.g. Bridgman- Stockbarger method
C30B 11/14 - Single-crystal-growth by normal freezing or freezing under temperature gradient, e.g. Bridgman- Stockbarger method characterised by the seed, e.g. its crystallographic orientation
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
21 - HouseHold or kitchen utensils, containers and materials; glassware; porcelain; earthenware
Goods & Services
Machines fitted with elements made of refractory materials
for use in the iron and steel industry, for coke production,
in the glassmaking industry, or the smelting and processing
of metals; transfer rollers (parts of machines); transfer
parts, rollers, seals, feed tanks, pourers and foundrymen's
ladles for glass and metals (parts of machines); dies,
plugs, moulds and stamps used for extruding, stretching,
pressing materials (parts of machines); welding shanks
(parts of machines); tubes, nozzles and fairings (parts of
machines); roughing rings for horizontal moulders (parts of
machines); bearings (parts of machines); sole plates (parts
of machines); guide rollers (parts of machines); borers
(parts of machines); pumps (parts of machines); dampers and
pistons (parts of machines); liners, plates and supports for
sintering ceramic materials and metals in powder form (parts
of machines); parts and components of all the above
products. Crucibles; crucibles made of refractory materials containing
fused silica. Tubes, sleeves, plates, slabs, claddings and insulating
fittings resistant to heat, refractory materials or not;
insulating plates not of metal made of refractory materials
containing fused silica. Materials (non-metallic building materials) containing fused
silica; coverings, not of metal, for building made of
refractory materials; linings, not of metal, for building
for ovens or tanks used at high temperatures; refractory
concrete; refractory bricks; non-metallic rigid pipes
(construction) made of refractory materials containing fused
silica. Components of fused silica for industrial applications,
namely semi-processed products not for building purposes.
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
11 - Environmental control apparatus
Goods & Services
Components of silica for industrial application (chemical
products for industrial use). Heat-resistant equipment for the handling and transport,
particularly when hot, of metal or glass foil, namely
conveyor rollers (machine parts); metal joining pieces for
such rollers (machine parts); roller assemblies comprising a
ceramic tube or cylinder and metal joining pieces (machine
tools); components of the above products. Component parts of apparatus for cooking, namely roller
units used in industrial furnaces (furnaces for the
fabrication of glass, annealing furnaces).
01 - Chemical and biological materials for industrial, scientific and agricultural use
11 - Environmental control apparatus
19 - Non-metallic building materials
Goods & Services
Goods of fused silica for industrial applications, in
particular in the fields of iron and steel working,
foundries and the glass industry. Furnace rolls of fused silica for the glass or steel
industry. Parts of fused silica, namely tips, spouts, nozzles, dippers
and gutters.
16.
CONVEYOR ROLL ASSEMBLY, USE THEREOF AND END CAP FOR A CONVEYOR ROLL
The present invention relates to conveyor roll assembly suitable for use in an environment subject to important temperature variation and to an integral end cap. The integral end cap ensures an efficient torque transfer to the ceramic spool thanks to its resilience due to the end cap deformation during the assembly of the end cap on the ceramic spool.
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
A conveyor roll assembly (1) for use at high temperature comprising a) a ceramic spool (2) having a flexural strength of at least 15 MPa and an external diameter D and, b) a torque transmission and support means (3) of a general cylindrical shape and having a longitudinal axis, comprising a body and b1. a supporting portion comprising at least one cylindrical supporting surface (10) and, b2.a connecting portion that is mechanically and resiliently deformed, comprising at least two distinct connecting surfaces, frictionally connecting the torque transmission and support means (3) to the ceramic spool (2), characterized in that at least one end of the ceramic spool has an axial, centered bore of a diameter 10mm = d = 3/4 D, preferably = 1/3D and a depth Dd =1.5 d and in that the torque transmission and support means (3) is provided in the at least said bore of the ceramic spool (2).
