摘要:
A process for the preparation of a magnetic recording medium comprising;applying a magnetic coating material composed of dispersing a ferromagnetic fine powder in a high molecular binder onto the surfaces of a nonmagnetic support member to form a coating thereon;arraying one or more sets of magnet pairs on the sides of front and back surfaces of said support member, each of said magnet pairs being deviated by a predetermined distance in the moving direction of said support member such that said magnet pairs will not face to each other; andapplying a magnetic field in such a manner that the magnetic field applied to said coating by the magnet pairs arrayed on the side of the front surface of said support member is greater than the magnetic field applied to said coating by the magnet pairs arrayed on the side of the back surface of said support member, thereby satisfying the requirements ofDo.ltoreq.a,b wherein Do represents a distance between the surface of said support member and said magnet pairs, a an average distance between the magnets constituting said magnet pairs arrayed on the side of the front surface of said support member, and b an average distance between the magnets constituting said magnet pairs arrayed on the side of the back surface of said support member.
摘要:
A method of manufacturing a paint composite for magnetic films wherein a mixture consisting of a magnetic powder, a polymer such as polyvinylbutyral, and a solvent is ground under a shear stress of 10-400 kg/cm.sup.2, and the ground mixture has a solvent, an epoxy resin and a phenol resin added thereto and is further ground. When a magnetic disk is produced using a paint which has been obtained by executing the first grinding under a shear stress of 10-400 kg/cm.sup.2 with a kneader or the like, it is endowed with excellent electric characteristics and surface flatness.
摘要翻译:制造用于磁性膜的涂料复合物的方法,其中将由磁性粉末,聚乙烯醇缩丁醛等聚合物和溶剂组成的混合物在10-400kg / cm2的剪切应力下研磨,并且研磨的混合物具有溶剂, 加入其中的环氧树脂和酚醛树脂,并进一步研磨。 当使用通过使用捏合机等在10-400kg / cm 2的剪切应力下执行第一次研磨而获得的涂料制造磁盘时,具有优异的电特性和表面平坦度。
摘要:
A welding gun precludes moisture from penetrating inside of a motor housing due by preventing development of negative pressure inside the motor housing. The welding gun includes a feed screw mechanism that is coupled to a servo motor and has a hollow rod that reciprocally moves in a predetermined direction by way of torque applied by the servo motor, and a moveable electrode tip that is connected to a leading end portion of the hollow rod and opens and closes relative to a fixed electrode tip according to the reciprocal movement of the hollow rod. The servo motor has a motor housing in which a motor housing hollow part accommodating a portion of the hollow rod to be reciprocally moveable is formed. A vent that ventilates the motor housing hollow part with ambient air is formed in the motor housing.
摘要:
A nephelometric immunoassay and a nephelometer therefore, characterized in that light is projected on a sample to-be-measured containing an antigen-antibody complex, that at least two light scattering intensities at different angles with respect to the incident light are measured, and that a true antigen concentration is discriminated by comparing the light scattering intensities.
摘要:
A flange section 12b protruding in a radial direction of a ball screw shaft 6a is formed at a lower end portion of the ball screw shaft 6a, and a protrusion stopper 12a which abuts on the flange section 12b to prevent the ball screw shaft 6a from protruding out of the rod 7 is formed in a hollow section of the rod 7. On the lower side of the hollow section of the rod 7, there is formed a retraction stopper 13a which abuts on a lower end portion 13b of the ball screw shaft 6a to limit the retraction of the rod 7.
摘要:
An electrophotographic photoconductor, includes metal-free phthalocyanine as a charge-generating substance, wherein the X-ray diffraction spectrum of said metal-free phthalocyanine as measured using CuK.alpha. as a radiation source includes intense diffraction peaks at Bragg angles (2.theta..+-.0.2.degree.) of 7.5.degree., 9.0.degree., 16.6.degree., 17.2.degree., 21.5.degree., 22.2.degree., 23.8.degree., and 28.5.degree., and wherein the infrared absorption spectrum of said metal-free phthalocyanine includes four absorption bands with the maximum absorption intensity at a wavenumber of 716 cm.sup.-1 between a wavenumber of 700 cm.sup.-1 and a wavenumber of 760 cm.sup.-1 and a characteristic absorption band at a wavenumber of 3,291.+-.2 cm.sup.-1.
摘要:
The present invention is to provide a seeding and seedling growing sheet and a seeding and seedling-growing method comprising using the sheet, which are to be used for seeding and growing seedling of grain, vegetable, flower and the like, and which are suitable for efficiently seeding at a desirable position and a desirable density with a higher positional precision and for promoting the growth at germination, by employing the seeding and seedling-growing adhesive sheet comprising a sheet support body composed of water-soluble or water-dispersible paper or water-soluble polymer film, an adhesive agent containing a powdery ferromagnetic substance being coated in spots or in stripes on the support body, and by applying the seeding and seedling-growing method comprising using the adhesive sheet.
摘要:
An encoder dampening mechanism is provided that absorbs shock acting on an encoder having a peripheral shape that is a flat shape, and prevents failure of the encoder. In an encoder dampening mechanism for an electric spot welding gun (1) equipped with a motor (30) that is accommodated inside of a motor housing (20) and causes a hollow rotor (31) to rotate, and an encoder main body (51) that detects a rotation angle of the hollow rotor (31), the encoder dampening mechanism includes: a thin plate (53) that is formed with a top surface (532) that is larger in a surface area than a base surface of the encoder main body (51), and on which the base surface of the encoder main body (51) is installed within the top surface (532); and a thin plate mounting portion (55) that connects the thin plate (53) to the motor housing (20) via the thin plate support part (553) and the thin plate pressure part (554), which dampen vibration.
摘要:
A welding gun driving device is provided with an electric motor, a feed screw mechanism, and a pressure rod axially moved forward and backward via the feed screw mechanism by the electric motor. A rotor of the electric motor is formed into a hollow shape through which the pressure rod is insertable. The feed screw mechanism is provided with a screw shaft fixed to the rotor concentrically with the rotor, and a nut portion screwed to the screw shaft. The pressure rod is provided with the nut portion and a hollow rod portion extending toward the axial front from the nut portion. The rotor is provided, at its inner peripheral face, with a guide portion through which the pressure rod is inserted and supported so as to be relatively rotatable and axially slidable.
摘要:
An immunoassay method for measuring a concentration of an antigen for a short period of time by immobilizing an antibody over the whole zone of an effective supporting matrix for electrophoresis and fixing an antigen in a sample to be measured by electrophoresis for the antigen-antibody reaction between said immobilized antibody and said antigen.