43results about How to "High quality surface" patented technology

A process for the continuous production of a thin steel strip, in which a steel melt from a melt reservoir is introduced onto one or more, in particular two, cooled shaping wall surfaces which move synchronously with a casting strip, in particular rotate in the form of casting rolls and at least partially solidifies at the shaping wall surface to form the casting strip. The steel melt, in terms of the crucial alloying constituents, contains less than 1% by weight of Ni and less than 1% by weight of Cr and less than 0.8% by weight, in particular less than 0.4% by weight, of C and at least 0.55% by weight of Mn. In the process, recesses are arranged on the shaping wall surface in a random pattern, distributed uniformly over the shaping wall surface, and the roll separating force (RSF) at the shaping wall surface is set to a value of between 5 and 150 N / mm, in particular between 5 and 100 N / mm.

By providing an abrasive having a ratio of volume-cumulative (95%) average particle size (D95) to volume-cumulative (50%) average particle size (D50) (D95 / D50) falling within a range of 1.2 to 3.0 or an abrasive having a volume-cumulative (95%) average particle size (D95) falling within a range of 0.1-1.5 μm and containing coarse particles having a size more than 10 times the volume-cumulative (50%) average particle size (D50) in an amount, based on the total mass of all the particles, of 1 mass % or less, there can be provided an abrasive, an abrasive slurry, a method for producing an abrasive, and a polishing method which attain, during accurate polishing of substrates such as electronics substrates, a high removal rate and a high-quality surface; i.e., a surface having a high flatness, low surface roughness, and substantially no microscratches or micropits.

The objective of the present invention is to provide a rotary-type smart automatic manufacturing apparatus for a planar coil antenna, the apparatus comprising: a main body (100); a rotary-type robot drive module (200); a hexagon coil antenna forming module (300); a touch screen unit (400); and a PLC control module (500), whereby the apparatus can automatically form a planar coil antenna with a flattened surface by performing planar-coil winding, pressing, cold-pressing, transferring, air spraying, and preheating processes on a received planar rectangular wire while sequentially rotating at oneplace in a rotary manner, which makes it possible to: do a work without a plurality of workers and reduce 80% of personnel expenses over the related art through the automation of the entire process;manufacture a good planar coil antenna with a uniformly-flattened surface by primarily flattening the coil antenna using the force of a press and secondarily flattening the coil antenna using the force of a press and a cold-spraying process when manufacturing the planar rectangular coil antenna; and mass-produce a planar coil antenna with a flattened surface through planar-coil winding, pressing,cold-pressing, transferring, air spraying, and pre-heat driving processes using first to sixth robot arms driven under the control of the PLC control module.

A prepreg for the manufacture of a fibre-reinforced composite material having fire retardant properties, the prepreg comprising from 42 to 52 wt % of an epoxide resin matrix system and from 48 to 58 wt % fibrous reinforcement, each wt % being based on the total weight of the prepreg, the fibrous reinforcement being at least partially impregnated by the epoxide resin matrix system;wherein the epoxide resin matrix system includes as components:a. a mixture of (i) at least one epoxide-containing resin and (ii) at least one catalyst for curing the at least one epoxide-containing resin; andb. a plurality of solid fillers for providing fire retardant properties to the fibre-reinforced composite material formed after catalytic curing of the at least one epoxide-containing resin,wherein the weight ratio of component a. to component b. is from 1.4:1 to 1.86:1.

The invention relates to multi-layer articles and methods of making such articles. The methods include first conditioning an underlying layer, such as a buffer layer or a superconductor layer, then disposing a layer of material on the conditioned termination plane. The conditioned termination plane can be a high quality termination plane. Superconductor articles formed by these methods can exhibitrelatively high critical current densities.