PURPOSE:To enable the automatic molding and enhance releasability by a method wherein a silicone rubber composition consisting of compounding an organic peroxide having the energy of activation with a semicurable organopolysiloxane composition having a crosslinkable functional group crosslinkable by an organic peroxide is cured into a particulate form at a specific temperature. CONSTITUTION:A sili...

PURPOSE:To obtain a ceramic superconducting wire superior in a superconductive characteristic by forming a bismuth family oxide superconducting film over stabilized zirconia base material which has flexibility and is stabilized with the addition of a Ca element or an Mg element. CONSTITUTION:At stabilized zirconia, a Ca element or an Mg element to be added for stabilization does not react so much ...

PURPOSE:To obtain a bismuth family oxide superconducting substance having an excellent superconductive characteristic, by providing a middle layer consisting of stabilized zirconia that is stabilized with the addition of a Ca element or an Mg element, between the base material and a bismuth family oxide superconducting film. CONSTITUTION:A Ca or Mg element which is added to stabilized zirconia for...

PURPOSE:To make a thin wire and reduce loss due to hysteresis or nearness effect, by making a structure in which Ni density within a matrix lowers as an Nb-Ti filament is approached. CONSTITUTION:A single wire whose cross section is of a hexagon, is manufac tured by administering cross section reduction processing to a complex body A into whose phi 42mm outer diametered 5.0mm thick Cu-10wt.% Ni al...

PURPOSE:To reduce the lowering of a characteristic due to the generation of impurities and also improve formability, by conducting the air phase addition of Bi which is a low melting point element, to an amorphous wire material containing Sr, Ca, Cu at a predetermined ratio. CONSTITUTION:An approximate agreement with the ratio of elements constituting a Bi superconductive oxide is made by using Sr...

PURPOSE:To reduce coupling loss due to the lowering of a ratio resistance value, by arranging wire materials which become diffusion sources, within a copper alloy matrix, and compensating the reduction of a matrix addition element quantity at the time of heat treatment for Nb3Sn generation. CONSTITUTION:At a complex wire 10, an Sn wire 12 is arranged at the center portion of the inside of a Cu-10w...

PURPOSE:To prevent deterioration in performance caused by influence of distor tion by producing Nb3Sn layer simultaneously at a connection part at the time of heat treatment of a complex wire. CONSTITUTION:A complex wire 1 has a plurality of Nb pipes 4 in its Cu matrix 3, and in each pipe 4 a Cu pipe 5 and an Sn wire 6 are stored. After heat treat ment the Cu pipe reacts to the Sn wire to form a C...

PURPOSE:To prevent deterioration in performance caused by influence of distor tion by generating Nb3Sn layers at the same time on a connection part at the time of heat-treating a complex wire. CONSTITUTION:A complex wire 1 has a plurality of Nb pipes in its a Cu matrix 3, and inside the pipe 4 a Cu pipe 5 and a Sn wire 6 are stored. After the heat treatment the Cu pipe 5 and the Sn wire 6 react to...

PURPOSE:To prevent deterioration in performance caused by influence of distor tion by generating Nb3Sn layers at the same time on a connection parts at the time of heat-treating a complex wire. CONSTITUTION:A complex wire 1 has a plurality of Nb pipes in its Cu matrix 3, and inside the pipe 4 a Cu pipe 5 and a Sn wire 6 are stored. After the heat treatment the Cu pipe 5 and the Sn wire 6 react to ...

Acoustical coupling is proposed as a means of determining the presence and acoustical impedance if materials behind casing in cementation evaluation. Expressions for computing coupling and attenuation in multi-receiver/transmitter logging systems are analyzed in an exponential model for the spatial decay of elastic wave energy propagating axially along the casing. Amplitude change between transmit...

A method for producing an alkenyl aromatic polymer extruded foam body having an average cell size of from 0.05 mm to 3.5 mm, a density of from 1.0 lbs/ft<3> (16 kg/m<3>) to 5.0 lbs/ft<3> (80 kg/cm<3>), a minimal cross- sectional thickness of 0.5 in (1.3 cm) and a minimal cross-sectional area of 8 in<2> (52 cm<2>) comprises the steps of: heat plastifying the alkenyl aromatic synthetic resin; introd...

Process for forming a hard coating on wax objects comprises (a) coating the object with a nitrocellulose lacquer (I) with boiling region max. of the volatile component not more than 135 deg.C and solid content at least 10wt.%; (b) drying between room temp. and 5 deg.C less than the m.pt. of the wax; and coating with a second lacquer (II) produced by hydrolytic polycondensation of a mixt. of one or...

A sleeve-type carrier element (4) is introduced into a shaft/hub friction connection in an annular gap between two concentric circumferential surfaces (5, 6) of the shaft (2) and of the hub (3) under prestress. The carrier element (4) is made of a shape-memory alloy, whose so-called martensite starting temperature is below the operating temperature of the shaft/hub connection. It can be achieved b...

The machine is distinguished by the method of clamping the ring for grinding. The ring (1) rests on three support rollers (3) which are mounted on slides (2) spaced 120 deg. apart. One slide is fixed and the other two can be radially adjusted to accept different sizes of ring. The fixed slide has a pair of rollers (4) which bear against the outside surface of the ring and locate it. The adjustable...

The diesel engine (1) connected by clutch (3) to the manual gearbox (4) is fed by a fuel pump (2) operated by a lever (8) with linkage (10) through a single-acting pneumatic cylinder (11) to the accelerator pedal (9). With the gearbox (4) in neutral, the variation in length of the linkage (10) is inhibited by opening of a switch (24) in the circuit (22) supplying the solenoid (21) of the valve (20...

The present invention relates to light-polarising films containing polyvinyl alcohol (PVAL), dichroic colouring components, optionally other colouring components, optionally additives and optionally surface-active compounds, characterised in that they are built up in two or more layers, where at least two layers differ in composition, and to a process for their production.

H2S in gases is broken down biologically by polymer-fixed micro-organisms, enclosed as bio-catalysts in gel beads. The micro-organisms convert H2S to sulphate in presence of O2, CO2 and/or acetic acid. The beads have been prepd. from a soln. in 1 l of water of 40-150 g of polyvinyl alcohol with at least 98% hydrolysis by adding the soln. dropwise to a liq. at not above -30 deg.C, and thawing the f...

A biodegradable sheet is produced from an aqueous dispersion containing finely cut cellulose fibers and chitosan. The dispersion is maintained at a temperature T1 DEG C. which is within the following range: t

There is provided an optical information recording and reproducing system which comprises a light source, a light beam power compensation circuit which can compensate a fluctuation of an emitted light beam power from the light source in response to a detected monitor signal corresponding to a light flux from the light source, a light beam control circuit composed of at least one control loop which...

Disclosed herein are propylene-base random copolymer particles suitable for use in the production of pre-foamed particles. The copolymer particles are obtained by heating starting copolymer particles to the crystallization temperature thereof and then quenching them in a medium of (the crystallization temperature-30 DEG C.) or lower. Processes for obtaining the copolymer particles are also disclos...