摘要:
A head positioning system for use with a magnetic disk with outer, middle and inner servo tracks which are radially separated by data tracks. The head positioning system includes a measuring element for measuring deviations of the magnetic head from the outer, middle and inner servo tracks by reading the servo information recorded on each of the servo tracks and generating first, second and third deviation values. The head positioning system also includes a determining element which determines an offset correction value for a targtet data track included in the data tracks in accordance with a quadratic compensation function and the first, second and third deviation values. A fine positioning element positions the magnetic track of the target track according to the offset correction value.
摘要:
The application relates to the particulate water absorbing agent of the present invention composed primarily of a polyacrylic acid- or polyacrylate-based water absorbing resin and containing a chelating agent and a phosphorous compound. Accordingly, the particulate water absorbing agent composed primarily of a water absorbing resin achieves both excellent water absorbing properties and anti-coloring effect which would normally be incompatible. A particulate water absorbing agent for absorbent core is provided that is suitable for actual use.
摘要:
Construction is achieved that is capable of maintaining overall strength of a cylindrical-shaped steering column, while at the same time making it possible to make the thickness part of the steering column thin. An outer column 10b, which is a column member of a steering column is formed by connecting in the axial direction a main portion 18 made using a light metal alloy with a cylindrical member 19 made of an iron-based alloy by a concave groove 20 that is formed around the outer circumferential surface of the front end section of the cylindrical member 19 engaging with a protrusion 21 that is formed around the inner circumferential surface of the rear end section of the main portion 18. A ring 22 made using a metallic material is fitted and fastened inside the inner diameter side of the cylindrical member 19 in the connecting section between the main portion 18 and the cylindrical member 19.
摘要:
To improve the heat retention by diapers and other absorbents, a heat retention indicator 1 of a water-absorbing resin which is defined in the present invention needs be 3.0° C./min or less and also that particular requirements need be met to satisfy this condition. If the requirements are met, a water-absorbing resin, absorbent, and absorbent article can be provided which has a heat retention indicator 1 of 0 to 3.0° C./min or less and which exhibits excellent heat retention and absorption.
摘要:
Zn alloy particles for high corrosion resistance rust prevention paint containing, by mass %, Mg: 0.01 to 30% and having a balance of Zn and unavoidable impurities, having physical fracture facets and/or cracks of a length of 0.01 μm or more or cracks of a depth of 0.01 μm or more, having an average particle size of 0.05 to 200 μm, and having an aspect ratio of maximum size and minimum size (maximum size/minimum size) of an average value of 1 to 1.5. Also, a high corrosion resistance rust prevention paint containing these Zn alloy particles and a high corrosion resistance steel material and steel structure coated with that paint.
摘要:
An object of the present invention is to provide a method for producing a particulate water-absorbent polymer particle having remarkably improved long-term color stability, without an adverse effect (such as a delay in polymerization) on synthesis of the particulate water-absorbent polymer. The method includes the steps of polymerizing a monomer aqueous solution (B) containing (i) at least one type of monomer (A) that is capable of forming a particulate water-absorbent polymer by polymerization, (ii) at least one type of crosslinking agent, (iii) at least one type of polymerization initiator and (iv) an organophosphorus compound in an amount of not less than 1 but not more than 100 ppm by mass with respect to the monomer (A) so as to form a hydrogel polymer, and drying the hydrogel polymer. The method enables to provide an excellent particulate water-absorbent polymer that realizes (i) long-term color stability and improvement in urine tolerance and (ii) absorbing property, which are in such a trade-off relationship. In this way, the above object is attained.
摘要:
An object of the present invention is to make it possible, in order to form the fine powder of the water-absorbent resin into a water-absorbing material having particle diameters favorable for practical use, that a water-absorbing material which has high agglomeration strength and is excellent in the quality performances is obtained at a low cost with good efficiency without causing the problems of the adhesion to such as treatment apparatus. As a means of achieving this object, a process according to the present invention for production of a water-absorbing material is a process for production of a water-absorbing material from a fine powder of a water-absorbent resin wherein the water-absorbing material is a particulate water-absorbing material having particle diameters larger than the fine powder, with the process comprising: a step (a) of adding an aqueous liquid to the fine powder of the water-absorbent resin with such as a high-speed stirring type continuous extrusion mixer 50 so that the overall average water content will be in the range of 20 to 60 weight %, whereby particles of the fine powder are agglomerated to thus obtain a particulate hydrous material 70 of the water-absorbent resin; and a step (b) of applying a mechanical compression force to the particulate hydrous material 70 and, at the same time, knead-pulverizing it, with such as a meat chopper apparatus 30, thereby obtaining particulate agglomerates 40 of the water-absorbing material.
摘要:
The present invention provides a shock-resistant magnetic tape apparatus. Even if the apparatus is subjected to a shock, no data destruction is caused in adjacent tracks. The apparatus comprises: a magnetic tape 1 having a servo region for head positioning; a head holding mechanism 3 for reciprocally moving a magnetic head 2 in a direction of width of the magnetic tape 1; a head positioning mechanism 4; a main controller 11 for driving the head positioning mechanism 4 according to the servo information of the magnetic tape 1; a write control circuit 12 for controlling data write by the magnetic head; a shock sensor 13 arranged in the head holding mechanism, for detecting a predetermined shock and producing a corresponding signal; and stop signal output circuit (comparator) 16 for producing an operation stop signal to the main controller 11 and the write control circuit 12 according to the output from the shock sensor.
摘要:
Disclosed is an apparatus for filling edible, rod-shaped hollow bodies with chocolate comprising a feeding unit (1) for conveying hollow bodies (A), a transport roller (2) positioned close to the feeding unit, a first transfer roller (5) positioned close to the transport roller, a chocolate filling roller (8) positioned close to the first transport roller, a second transfer roller (13) positioned close to the chocolate filling roller, and a discharging unit (14) positioned close to the second transfer roller for receiving and conveying hollow bodies filled with chocolate from the chocolate filling roller via the second transfer roller. The apparatus assures the continuous flow of hollow bodies to the chocolate filling station without any fear of breaking fragile hollow bodies, thereby permitting mass production of chocolate corn cakes, each filled with an exact amount of chocolate.
摘要:
Construction is achieved that is capable of maintaining overall strength of a cylindrical-shaped steering column, while at the same time making it possible to make the thickness part of the steering column thin. An outer column 10b, which is a column member of a steering column is formed by connecting in the axial direction a main portion 18 made using a light metal alloy with a cylindrical member 19 made of an iron-based alloy. A ring 22 made using a metallic material is fitted and fastened to the inner diameter side of the cylindrical member 19 in the connecting section between the main portion 18 and the cylindrical member 19. The inner diameter of the ring 22 is equal to or greater than the inner diameter of the portion of the main portion 18 that is separated in the axial direction from the connecting section with the cylindrical member 19, and is equal to or less than the inner diameter of the cylindrical member 19.