Abstract:
The invention provides metal powder constituted from metal particles. Each of the metal particles comprises a base particle having a surface and a metal material constituting at least the surface of the base particle. The base particle is subjected to a surface treatment with a fluorine type phosphoric acid ester. Further, the invention also provides an ultraviolet ray curable ink jet composition to be ejected by using an ink jet method. The ultraviolet ray curable ink jet composition comprises a polymerizable compound and metal powder constituted from metal particles. The metal particles of the metal powder are subjected to a surface treatment with a fluorine type phosphoric acid ester.
Abstract:
Provided is a bonding material which can bond base materials or substrates having different linear thermal expansion coefficients, and can have heat resistance against temperatures of 300° C. or higher, vacuum airtightness and bonding strength, further which has excellent handleability and workability. The bonding material is produced by mixing, in a content ratio of 0.01 to 60 mass % (to the whole), a metal Ga, and/or at least one metal or alloy powder selected from the group consisting of a metal powder mixture of a combination of Bi and Sn or an alloy powder thereof, and a metal powder mixture of a combination of Bi, Sn and Mg or an alloy powder thereof with a Bi2O3-based glass frit powder having an average particle diameter of 200 μm or less. The bonding material may be formed in a paste form by adding a solvent thereto. This feature makes it possible to bond together substrates having different thermal expansion coefficients without causing a crack or unsticking.
Abstract translation:本发明提供一种接合材料,其能够接合具有不同线膨胀系数的基材或基材,并且可以具有300℃以上的温度,真空气密性和接合强度的耐热性,进一步具有优异的可操作性和可加工性。 接合材料通过以0.01〜60质量%(总体)的比例混合金属Ga,和/或至少一种选自由以下组成的组的金属或合金粉末: Bi和Sn或其合金粉末的组合以及Bi,Sn和Mg的组合的金属粉末混合物或其合金粉末与平均粒径为200μm以下的Bi 2 O 3系玻璃粉末。 接合材料可以通过向其中加入溶剂而形成糊状。 该特征使得可以将不同热膨胀系数的基板结合在一起而不会产生裂纹或不粘结。
Abstract:
An electrode module includes a working electrode, a counter electrode, a reference electrode and a well (container) for retaining an electrolytic solution and is used in electrochemical measuring instruments. This electrode module is produced by integrating the well with at least one of the working electrode, the counter electrode and the reference electrode. This integrated electrode includes a chip-like electrode having a thin membrane of an electrode material formed on the surface of a chip-like base metal. This chip-like electrode is disposed on and integrated with the bottom of the well in a detachable manner. There is provided the compact, low price electrode module of high repetition use efficiency with no need of maintenance and having easy handling.
Abstract:
The invention provides a solder alloy containing, by mass, 2.0 to 15.0% of Ag, 0.1 to 6.0% of Al, 0.01 to 0.50% of Y, the balance being Sn and unavoidable impurities. The solder alloy preferably contains 0.01 to 0.50% of Ge by mass. The solder alloy of the invention is suited to bonding oxides together and the oxides preferably comprise glass. The invention provides a glass bonded body formed by bonding glasses with the use of the solder alloy.
Abstract:
An automotive body transfer method and a transfer system is operable to transfer a vehicle body between a transfer mechanism and a stationary assembly station in an automobile production process. In the method and system hereof, one longitudinal half of each of front and rear pairs of left and right jack-up brackets, formed in lower parts of left and right side sills of the body, is supported by the transfer mechanism, and the other longitudinal half of each of the jack-up brackets is supported by the stationary assembly station, thereby enabling the shape and structure of the transfer mechanism and the stationary assembly station to be simplified.
Abstract:
A main magnetic pore layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.
Abstract:
A TIG welding apparatus comprises; a twin electrode type welding torch 1 having a first and a second welding electrode 1a, 1b arranged approximately parallel and either side of an insulation plate of a predetermined thickness, and a main unit 2 which supplies to the first welding electrode 1a a first welding current varied at a first period F, and to the second welding electrode 1b a second welding current varied at the first period F and at an opposite phase to the variation of the first welding current. The main unit 2 superimposes a variation of a second period fm being shorter than the first period F, onto the first and second welding currents. As a result, the arc current is increased without increasing the welding current.
Abstract:
A semiconductor laser heating apparatus has a measuring instrument for measuring an optical-power output relative to a current to be supplied to the semiconductor laser. The heating apparatus also has a calculator for calculating a correction coefficient of the optical-power output based on the measured data, and has a controller for correcting a supply current to the semiconductor laser relative to a value determined by an optical-power output determiner based on the calculation result. The heating apparatus employing optical fibers as an output terminal thus can always produce a desirable heating condition regardless of the optical-power output deteriorated with the lapse of time.
Abstract:
Disclosed is an access control system for an optical disk device, which has: a residual track number counter circuit which counts the number of residual tracks from a current position of an optical pickup to a target position; an optical pickup velocity calculation circuit which calculates a current velocity of the optical pickup at intervals of a predetermined time period; and a control circuit which comprises a reference velocity calculation means which a reference velocity from the number of residual tracks to be counted by the residual track number counter circuit, a velocity error calculation means which calculates a velocity error between the reference velocity and the current velocity, a current acceleration calculation means which calculates a current acceleration based on a variation of the current velocity and an acceleration error calculation means which calculates an acceleration error between the current acceleration and a predetermined reference acceleration; wherein the control circuit further comprises a control means which moves the optical pickup to the target position while controlling the velocity of the optical pickup by using the velocity error or using a value obtained by adding a correction value determined by the velocity error, the current acceleration and the acceleration error to the velocity error as a driving signal of the optical pickup.
Abstract:
A combined-type thin film magnetic head in which a reproducing head portion including a magnetoresistive device and an inductive magnetic head are laminated. A coil support portion made of the same plated layer that forms an upper gap layer of the reproducing head portion having the magnetoresistive device and a lower core portion separated from the magnetic material layer by a gap .delta. are formed on the surface of the upper gap layer. The coil support portion and the lower core portion have areas that enable a coil layer to be formed so that the coil layer is enabled to be formed on a region having no step. An upper core layer is formed on the lower core portion in such a manner that the coil layer is held therebetween. A magnetic gap is formed between the two core layers. Since the magnetic passage of the lower core portion has a small cross sectional area, the inductance of the magnetic circuit can be lowered.