摘要:
Plastic foam has excellent heat insulation properties, however, moisture absorption is causing a decrease in the heat insulation, and plastic foam has almost no mechanical strength. Therefore, a heat insulation material that absorbs almost no moisture and has satisfactory strength is desired to appear. According to the present invention, a foam composite with a skin can be formed in one shot by charging plastic powders or minute particles together with polyolefin pellets that can be cross-linked and foamed in a mold, and heating the mold while rotating. The composite absorbs almost no moisture, having satisfactory strength, being excellent as an insulating material. Further, providing a covering of a non-foaming or a slightly foaming material to the pellet of polyolefin that can be cross-linked and foamed, and conducting the forming, foamed granules of preferably 5 to 50 mm largeness as a core, and a covering of a reinforcing member with 0.05 to 0.5 mm thickness for the core, can be formed, which permits that thus obtained shaped body is lightweight, strong, with an equivalent strength to wood that undergoes deformation without breaking when subjected to impact.
摘要:
Plastic foam has excellent heat insulation properties, however, moisture absorption is causing a decrease in the heat insulation, and plastic foam has almost no mechanical strength. Therefore, a heat insulation material that absorbs almost no moisture and has satisfactory strength is desired to appear. According to the present invention, a foam composite with a skin can be formed in one shot by charging plastic powders or minute particles together with polyolefin pellets that can be cross-linked and foamed in a mold, and heating the mold while rotating. The composite absorbs almost no moisture, having satisfactory strength, being excellent as an insulating material. Further, providing a covering of a non-foaming or a slightly foaming material to the pellet of polyolefin that can be cross-linked and foamed, and conducting the forming, foamed granules of preferably 5 to 50 mm largeness as a core, and a covering of a reinforcing member with 0.05 to 0.5 mm thickness for the core, can be formed, which permits that thus obtained shaped body is lightweight, strong, with an equivalent strength to wood that undergoes deformation without breaking when subjected to impact.
摘要:
A foam composite with a skin formed in one shot by charging plastic powders or minute particles together with polyolefin pellets that can be cross-linked and foamed in a mold, and heating the mold while rotating. The composite absorbs almost no moisture, having satisfactory strength, being excellent as an insulating material.Further, providing a covering of a non-foaming or a slightly foaming material to the pellet of polyolefin that can be cross-linked and foamed, and conducting the forming, foamed granules as a core, and a covering of a reinforcing member for the core.
摘要:
A foam composite with a skin formed in one shot by charging plastic powders or minute particles together with polyolefin pellets that can be cross-linked and foamed in a mold, and heating the mold while rotating. The composite absorbs almost no moisture, having satisfactory strength, being excellent as an insulating material.Further, providing a covering of a non-foaming or a slightly foaming material to the pellet of polyolefin that can be cross-linked and foamed, and conducting the forming, foamed granules as a core, and a covering of a reinforcing member for the core.
摘要:
A conductive film comprises a phosphide particle coated film formed by attaching raw material particles including phosphide particles comprising a compound of Ti and/or Fe, and P to a surface of a substrate material. This conductive film exhibits good corrosion resistant conductivity, and can be easily formed at low costs because of comprising the phosphide particle coated film. A corrosion-resistant conduction film comprises an iron-containing titanium phosphide layer containing Ti, Fe and P as essential basic elements. A corrosion-resistant conduction material having this corrosion-resistant conduction film on a surface of a substrate exhibits good corrosion resistance or conductivity. This corrosion-resistant conduction material can be obtained, for example, by a process comprising a plating step of forming an Ni plating layer on a surface of a Ti-based material substrate and a nitriding step of applying nitriding treatment to the Ti-based material substrate after the plating step at not more than 880 deg. C.
摘要:
The amorphous carbon film of the present invention is an amorphous carbon film comprising carbon and hydrogen, wherein the amorphous carbon film contains not more than 30 atomic % (excluding 0%) of hydrogen and, when the entire amount of the carbon is taken as 100 atomic %, carbon having an sp2 hybrid orbital is present in an amount of not less than 70 atomic % and less than 100 atomic %. Conductivity is imparted to an amorphous carbon film by controlling the contents of hydrogen, Csp3 and the like to increase a structure comprising Csp2. This amorphous carbon film can be formed by plasma CVD using a reaction gas containing one or more gases selected from a carbocyclic compound gas containing carbon having an sp2 hybrid orbital, and a heterocyclic compound gas containing carbon having an sp2 hybrid orbital and silicon and/or nitrogen. By forming the amorphous carbon film on a surface of a substrate, a conductive member can be obtained.
摘要:
There is provided an electron conductive and corrosion-resistant material 3 containing titanium (Ti), boron (B) and nitrogen (N) in an atomic ratio satisfying 0.05≦[Ti]≦0.40, 0.20≦[B]≦0.40, and 0.35≦[N]≦0.55 (provided that [Ti]+[B]+[N]=1). Further, there is provided a method of manufacturing an electron conductive and corrosion-resistant material 3, wherein boron nitride powder adheres to the surface of a substrate 2 of which at least the surface is made of titanium or a titanium alloy, and is then heated. Furthermore, there is provided a method of manufacturing an electron conductive and corrosion-resistant material 3, wherein the surface of a substrate 2 of which at least the surface is made of titanium or a titanium alloy is borided and then heated. In addition, there is provided a method of manufacturing an electron conductive and corrosion-resistant material 3, wherein a TiB2 layer formed of TiB2 particles is formed by spraying TiB2 powder onto a metal substrate 2 and then nitriding the TiB2 layer.
摘要:
A hydraulic pump includes a housing including an inlet port, an outlet port, and a fluid chamber, a shaft fixed to the housing, a rotor including an impeller portion that rotates relative to the shaft, the impeller portion suctioning and discharging a fluid, a fixed portion provided at the housing and made of an aluminum alloy, the fixed portion securing the shaft, a short-circuit portion provided at the shaft and made of a stainless steel having a nitrided layer at a surface, the short-circuit portion being supplied with a protection current from the fixed portion by galvanically making contact with the fixed portion, and a support portion rotatably supporting the rotor and formed by extending from the short-circuit portion, an outer peripheral surface of the support portion being covered with an amorphous carbon film of which a main component is carbon and which includes silicon.
摘要:
An oxygen generating electrode has a base material with at least a surface thereof made of titanium alone or a titanium alloy, a primary coating formed on the surface of the base material, and a catalyst layer formed on the primary coating and containing an oxide of platinum group element as a main component. The primary coating is composed of a titanium oxide coating and an oxide mixture layer, the titanium oxide coating being made of a titanium oxide only and including a first titanium oxide layer formed by electrolytically oxidizing the surface of the base material and a second titanium oxide layer formed on the first titanium oxide layer by a thermal decomposition method, the oxide mixture layer including at least one layer formed on the titanium oxide coating and consisting of a mixture containing an oxide of an element belonging to a group other than the platinum group, as a main component, and an oxide of a platinum group element.
摘要:
An optically active compound represented by the general formula (I) of:R--Z--COO--(Ph).sub.k --Ph(Y)--CO--(CH.sub.2).sub.m C*HE L (1)In the general formula (I); R is an alkyl or alkoxy group having 4 to 22 carbon atoms; Z is the one selected from the group consisting of --Ph--, --Ph(X)--, --Ph--Ph--, Ph(X)--Ph--, --Ph--cy--, --Ph(X)--cy-- and --py--Ph-- is a 1,4-substituted phenylene group; --Ph--Ph-- is a 4,4'-substituted diphenylene group; --cy-- is a trans-1,4-cyclohexane group, --py is 2,5-substituted pyrimide group; X is a halogen atom at the ortho-position to R; k is zero or 1, Y is the one selected from the group consisting of H, OH, halogen atoms and methyl group; C* is an asymmetric carbon atom; E is the one selected from the group consisting of methyl group, halogen atoms and CF.sub.3 ; L is an alkyl, aryl or aralkyl group having not more than 10 carbon atoms; and m is an integer of zero to 6 where m takes zero when Y is H and Z is --Ph-- or --Ph--Ph--. The optically active compound is usable as an ingredient for a liquid crystal composition which has high spontaneous polarization, exhibits the Sc* phase (chiral smectic C liquid crystalline phase) in a wide temperature range and high speed response.