摘要:
A glass breaking system is provided for breaking large sheets of glass into small sheets, in which a laser beam having an elongated beam spot shape, with a largest dimension which is at least 20 mm, more preferably at least 30 mm, and most preferably at least 40 mm, is moved across a glass sheet to produce a partial crack score line. The glass sheet is then separated along the score line by applying a bending moment in the area of the partial crack.
摘要:
Fiber-reinforced ceramic matrix composite articles are fabricated by combining inorganic reinforcing fibers with dispersions of powdered ceramic matrix materials in organic vehicles which are thermoplastic solids. The dispersions are solid at room temperature, and are melted and combined with the fibers as heated liquid dispersions. Following application to the fibers, the thermoplastic dispersions are solidified by simple cooling; no solvent removal or drying step is required.
摘要:
In a flat panel display system including a polyhedral enclosing housing structure having opposed front and back panels, which structure requires a subatmospheric or evacuated environment for the performance of the electronic components contained therein, a plurality of substantially parallel transversely spaced apart and longitudinally extending supporting vanes are fixtured within said housing between said front and back panels for limited movement within said housing prior to evacuating the interior thereof and for engagably supporting said front and back panels against the forces generated by atmospheric pressure when said interior is evacuated.
摘要:
In a flat panel display system including an enclosing housing structure having opposed front and back panels connected together by a plurality of hermetically sealed sidewall panels, which structure requires a subatmospheric or evacuated environment for the performance of the components contained therein resulting in the production of undesirable stresses in the opposed panels due to the forces generated by atmospheric pressure, the sidewall panels are formed with oblique panel portions lying skew to the opposed front and back panels and extending outwardly of the housing intermediate said opposed panels, and thereby reduce the maximum stresses generated in such front and back panels to within acceptable limits. The skew panels may be formed of glass and be of uniform thickness along their extent, or may be contoured so as to taper in thickness toward a center portion intermediate the front and back panels. In addition, the skew sidewall panels may be formed as a single unitary wall or as a plurality of panels sealed together intermediate the fornt and back panels.
摘要:
Two-layer protective coating system for glass surfaces is disclosed. The base coating comprises at least one polysaccharide, and the top coating has a lower solubility in water than the base coating. The coating system provides good protection against contaminants and glass chips, good removability in mild cleaning condition, and extra water resistance during process steps where water is used as a cooling agent.
摘要:
A method of making a fiber reinforced glass matrix composite wherein a continuous length of fiber is impregnated with glass and at least partially consolidated to form a fiber-glass matrix system encompassing the continuous length of fibers, cutting the fiber-glass system into a plurality of short fiber reinforced composites, heating the short fiber reinforced composites to form a composite batch wherein the glass matrix is in a molten condition, and molding the composite batch to form a reinforced glass composite article with uniform random distribution of short fibers, is disclosed.
摘要:
A method of forming a fiber-reinforced, glass or glass-ceramic, elongated composite is described wherein several multifiber lengths are impregnated with matrix material, woven or twisted to form a fabric network, the impregnating matrix material softened, and the network subjected to a stretching action along the central axis of the fiber network to collapse the network and consolidate it to a solid composite.
摘要:
In a flat panel display system including a polyhedral enclosing housing structure having opposed front and back panels, which structure requires a subatmospheric or evacuated environment for the performance of the electronic components contained therein, a plurality of substantially parallel transversely spaced apart and longitudinally extending supporting vanes are fixtured within said housing between said front and back panels for limited movement within said housing prior to evacuating the interior thereof and for engagably supporting said front and back panels against the forces generated by atmospheric pressure when said interior is evacuated.
摘要:
A method for making a ceramic matrix composite article wherein a dispersion of a ceramic matrix powder in a wax-containing thermoplastic vehicle is applied to an inorganic fiber reinforcement material to form a prepreg material such as a prepreg tow, and the tow is collected and formed into a preform for the article which is then subjected to binder burnout and consolidation, wherein the prepreg material is heated to a temperature sufficient to evaporate at least about 50% by weight of the wax component therefrom prior to the collection and forming of the material into the preform.
摘要:
There is disclosed a method of producing an elongated, fiber-reinforced composite having a glass or glass-ceramic matrix and an elongated axial form. A continuous length of fibers is impregnated with glass and the impregnated fiber body consolidated by being pultruded through a die. A combination of axial tension to pultrude the fiber body and sintering pressures exerted by the die result in a composite body of continuous length.