A method for making an aircraft brake disc includes: a first step of manufacturing a rotary disc preform for manufacturing a rotary disc and a fixing disc preform for manufacturing a fixing disc; and a second step of densifying the rotary disc preform such that density continuously increases from the center to the outside of the rotary disc and of densifying the fixing disc preform such that density continuously decreases from the center to the outside of the fixing disc.
C23C 16/46 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for heating the substrate
C23C 16/04 - Coating on selected surface areas, e.g. using masks
C23C 16/52 - Controlling or regulating the coating process
An apparatus for testing an aircraft brake disc includes: a base member having a shaft mount unit; a main shaft rotatably mounted on the shaft mount unit of the base member; a wheel assembly couple to the main shaft; a first wheel mount assembly that is disposed at a side from the base member to move in the radial direction of the wheel assembly; a first driving unit moving the first wheel mount assembly; a second wheel mount assembly that is disposed at the other side from the base member to move in the radial direction of the wheel assembly; a second driving unit moving the second wheel mount assembly; a motor assembly connected to a side of the main shaft and rotating the wheel assembly; and a first flywheel assembly separably coupled to the other side of the main shaft.
G01L 5/28 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
3.
Method for making three dimension preform having high heat conductivity and method for making aircraft brake disc having the three dimension preform
A method of manufacturing a three dimension preform having high thermal conductivity includes: a first step of manufacturing a unidirectional carbon fabric from a heat resistant fiber; a second step of putting the unidirectional carbon fabric into an aqueous solution with carbon nanomaterials contained in a vessel; a third step of taking the unidirectional carbon fabric out of the vessel and then drying the unidirectional carbon fabric; a fourth step of repeating the second step and the third step; a fifth step of stacking the unidirectional carbon fabrics with web carbon fabrics, which are made of a heat resistant fiber, inserted between the unidirectional carbon fabrics; and a sixth step of punching the stacked unidirectional carbon fabrics and the web carbon fabrics with a needle.
B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
D04H 1/46 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
D04H 1/498 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
D06B 1/00 - Applying liquids, gases or vapours on to textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
D06B 9/00 - Solvent-treatment of textile materials
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
The present invention relates to a carbon-ceramic brake disc, and the present invention includes a plurality of heat dissipation holes formed in a frictional surface; a curved surface formed between the frictional surface and an inner surface of the hole dissipation hole; and a groove formed at the inner surface of the heat dissipation hole. According to the present invention, in a brake system, when brake pads press the frictional surfaces of the carbon-ceramic brake disc brake to generate braking force, frictional heat in the carbon-ceramic brake disc is effectively dissipated to the outside. That is, the carbon-ceramic brake disc is effectively cooled. Thus, the transferring of the frictional heat generated in the carbon-ceramic brake disc to a hat part is reduced, so that it is possible to minimize deformation of the carbon-ceramic brake disc and the hat part.
There is provided a porous, carbon-containing preform, including a body (CL) of unidirectional carbon fiber fabrics (C1), and a friction layer (FL) of randomly-arranged-carbon-fiber fabrics (F1), combined with the body (CL) by a needle-punching operation. According to the present invention, it is by the needle-punching operation that the friction layer (FL) of the randomly-arranged-carbon fiber fabric (F1) is formed on the body (CL) of the unidirectional carbon fiber fabric (C1) and the friction layer (FL) of the randomly-arranged-carbon-fiber (F1) is cross-linked to the body (CL) of the unidirectional carbon fiber fabric (C1) in producing the porous, carbon-containing preform.
B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
B32B 7/02 - Physical, chemical or physicochemical properties
D04H 1/498 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
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