摘要:
An elevator rope of the present invention includes: a rope main body; and a covering resin layer that covers the periphery of the rope main body, the covering resin layer obtained by cross-linking a molded product of a composition comprising a thermoplastic polyurethane elastomer and a vinyl compound having two or more vinyl groups per molecule or a molded product of a thermoplastic polyurethane elastomer formed by using a polyol having a vinyl group for each molecule. In order to further stabilize the friction coefficient, inorganic fillers such as talc, a glass fiber and titanium oxide may be further mixed in the composition. The elevator rope of the present invention has a stable friction coefficient that does not depend on temperature or sliding velocity.
摘要:
An aluminum alloy conductor having a high conductivity and a high bending fatigue resistance, and further achieving a high impact absorption property and a high elongation at the same time is provided. An aluminum alloy conductor of the present invention has a composition consisting of Mg: 0.10 mass% to 1.00 mass%, Si: 0.10 mass% to 1.00 mass%, Fe: 0.01 mass% to 1.40 mass%, Ti: 0.000 mass% to 0.100 mass%, B: 0.000 mass% to 0.030 mass%, Cu: 0.00 mass% to 1.00 mass%, Ag: 0.00 mass% to 0.50 mass%, Au: 0.00 mass% to 0.50 mass%, Mn: 0.00 mass% to 1.0 mass%, Cr: 0.00 mass% to 1.00 mass%, Zr: 0.00 mass% to 0.50 mass%, Hf: 0.00 mass% to 0.5 mass%, V: 0.00 mass% to 0.5 mass%, Sc: 0.00 mass% to 0.50 mass%, Ni: 0.00 mass% to 0.10 mass%, and the balance: Al and incidental impurities, wherein a dispersion density of compound particles having a particle size of 20 nm to 1000 nm is greater than or equal to 1 particle/µm 2 .
摘要:
The present invention relates to a cubic boron nitride sintered material having such a single-filament fiber-like structure that a shell member made of the cubic boron nitride sintered material constituted from cubic boron nitride particles that are bound by a binder phase made of nitride or carbide of at least one kind of metal element selected from among metals of groups 4, 5 and 6 of the periodic table covers the circumferential surface of a fiber-like core member made of the cubic boron nitride sintered material constituted from cubic boron nitride particles that are bound (a) by a binder phase made of carbide of at least one kind of metal element selected from among metals of groups 4, 5 and 6 of the periodic table in the case that the binder phase of the shell member is made of said nitride, or (b) by a binder phase made of nitride of at least one kind of metal element selected from among metals of groups 4, 5 and 6 of the periodic table in the case that the binder phase of the shell member is made of said carbide, a cutting tool and a method for cutting a workpiece.
摘要:
A fiber is provided that has been thermally drawn from a fiber preform, having a longitudinal-axis length and including at least one core that has a longitudinal core axis parallel to the longitudinal axis and internally disposed to at least one outer fiber cladding material layer along the fiber length. The fiber is fed through a localized heating site having a heating site temperature, T, that is above a melting temperature of the fiber core, with a feed speed, υf, that melts a portion of the fiber core at the heating site, causing molten droplets to pinch off of fiber core material, one droplet at a time, with a time period of molten droplet formation set by the fiber feed speed, υf. The fiber is fed through the localized heating site to move the molten droplets out of the heating site and solidify the molten droplets into solid in-fiber particles.