Patent application number | Description | Published |
20090178737 | DIE FOR PRESS FORMING OF GLASS AND MANUFACTURING METHOD THEREOF - The present invention is directed to provide a method for manufacturing a die for press forming of glass in which cracks are not easily caused in a surface covering layer. A surface covering layer made of an amorphous Ni—P alloy is formed on the surface of a base material made of a steel having a martensitic structure or made of steel in which ε-carbide is dispersed in low carbon martensite matrix. Then, the base material and the surface covering layer are heated to change the base material into a troostitic structure or a sorbitic structure and change the surface covering layer into a eutectic structure of Ni and Ni | 07-16-2009 |
20090236016 | METHOD FOR MANUFACTURING GLASS MOLDING DIE - A method for manufacturing a glass molding die includes forming a substrate by hardening a steel material containing 0.3 wt % or more and 2.7 wt % or less of carbon and 13 wt % or less of chromium, and further containing at least one additive selected from 0.5 wt % or more and 3 wt % or less of molybdenum, 0.1 wt % or more and 5 wt % or less of vanadium, and 1 wt % or more and 7 wt % or less of tungsten, and then tempering the steel material at a temperature of 400° C. or higher and 650° C. or lower, forming a surface coating layer composed of an amorphous Ni—P alloy on the surface of the substrate, and heating the surface coating layer thereby rendering the surface coating layer an eutectic structure composed of Ni and Ni | 09-24-2009 |
20090252866 | METHOD OF PRODUCING GLASS FORMING MOLD - A steel base material is hardened to produce the base material having a martensite structure, a surface coating layer made of an amorphous Ni—P alloy is formed on the surface of the base material, and the base material is heat-treated to transform the structure of the base material into a troostite structure or a sorbite structure and also to transform the structure of the surface coating layer into an eutectic structure of Ni and Ni | 10-08-2009 |
20100011815 | GLASS-SHAPING MOLD AND METHOD FOR MANUFACTURING THE SAME - A glass-shaping mold includes a steel base member, and a crystallized, machined layer, an intermediate layer and a mold-releasing layer which are sequentially formed on the base member. The machined layer is a layer of nickel alloy containing phosphorus. The intermediate layer is a layer formed of chromium, nickel, copper or cobalt. Alternatively, the intermediate layer is a layer of an alloy layer containing at least one of these elements. The mold-releasing layer is a layer of an alloy containing iridium and rhenium. | 01-21-2010 |
20110014495 | METAL MATERIAL FOR PARTS OF CASTING MACHINE, MOLTEN ALUMINUM ALLOY-CONTACT MEMBER AND METHOD FOR PRODUCING THEM - A Ni alloy layer is formed on a surface of a steel base on the side to be in direct contact with a molten aluminum alloy, and titanium carbide (TiC) is bonded in a particulate state to the surface of the Ni alloy layer. This makes it possible to provide a metal material having materially enhanced melting loss resistance without resorting to conventional techniques, such as the provision of a ceramic coating by PVD or CVD. | 01-20-2011 |
Patent application number | Description | Published |
20120288703 | SEA-ISLAND COMPOSITE FIBER, ULTRAFINE FIBER, AND COMPOSITE SPINNERET - A sea-island composite fiber has an island component which is ultrafine fibers having a noncircular cross-section, the ultrafine fibers being uniform in the degree of non-circularity and in the diameter of the circumscribed circle. The sea-island composite fiber includes an easily soluble polymer as the sea component and a sparingly soluble polymer as the island component, and the island component has a circumscribed-circle diameter of 10-1,000 nm, a dispersion in circumscribed-circle diameter of 1-20%, a degree of non-circularity of 1.2-5.0, and a dispersion in the degree of non-circularity of 1-10%. | 11-15-2012 |
20150132428 | COMPOSITE SPINNERET - A composite spinneret for discharging a composite polymer stream consisting of at least two or more component polymers, which includes a metering plate having multiple metering holes for metering respective component polymers, a distribution plate with multiple distribution holes formed in the distribution grooves for joining the polymer streams discharged from the metering holes, and a discharge plate. | 05-14-2015 |
20150184315 | SEA-ISLAND COMPOSITE FIBER - A sea-island composite fiber includes island component fibers having a circumscribed circle diameter of 10 to 1000 nm, a circumscribed circle diameter variation of 1 to 20%, a non-circularity of 1.2 to 5.0, and a non-circularity variation of 1 to 10%. | 07-02-2015 |
20150299906 | SEA-ISLAND COMPOSITE FIBER, MIXED YARN AND FIBER PRODUCT - A sea-island composite fiber includes two or more kinds of island components having different cross section shapes of which an irregularity difference is 0.2 or more in a same fiber cross section, wherein at least one kind of island component has an irregularity of 1.2 to 5.0 and an irregularity coefficient of variation of 1.0 to 10.0%. | 10-22-2015 |