82results about How to "Small bend" patented technology

A semiconductor wafer to be treated is placed in a horizontal position on a holding plate held by a susceptor. Six bumps are mounted upright on the upper surface of the holding plate. The semiconductor wafer is supported by the six bumps in point contacting relationship, and is held at a distance ranging from 0.5 mm to 3 mm from the upper surface of the holding plate. Light is directed from halogen lamps onto the semiconductor wafer held by the holding plate to preheat the substrate until the temperature of the semiconductor wafer is increased up to a predetermined temperature. Thereafter, flash light is directed from flash lamps onto the semiconductor wafer. A thin gas layer lying between the back surface of the semiconductor wafer and the upper surface of the holding plate acts as a resistance to suppress the motion of the semiconductor wafer, thereby preventing a crack in the semiconductor wafer.

A fiber optic cable includes a miniature bend at one end, connecting a pair of optical fibers forming an originating light path with a return light path. The use of the miniature bend to connect to the originating and return light paths results in an end portion of the cable having a sufficiently small diameter to permit the cable to be blown into otherwise inaccessible locations, for example, the control line of an oil well.

Where a super-elastic alloy is used as a core material, boundary separation can be prevented on substantial deflection. The super-elastic alloy is used as the core material, an outside layer made with fiber-reinforced resin is provided outside except the tip part region of said core material, and a resin-rich layer greater in resin ratio than said outside layer is provided between said outside layer and the core material so as to be adjacent to the core material.

A lift has a lift cage movable in a lift shaft and is connected with a counterweight by means of at least one support means. The lift cage or counterweight moves by means of at least one drive means separate from the support means. One end of the drive means engages the upper end of the counterweight, is guided by way of a drive pulley and by way of a deflecting roller, and engages at its other end with the lower end of the counterweight. A drive unit drives the drive pulley. The drive means consists of a drive part and a tension part of different characteristics, wherein the drive and tension parts are connected by means of a drive means connection.

An underwater connection installation (26) and a laying method for connecting a riser and a flexible pipe (22) that are intended for carrying hydrocarbons. A post (28) is attached to a float (20) to suspend the riser (12) below the surface. The post (28) supports a gooseneck shape pipe (54) that has a bent-over outlet free end (58) ending in a first coupling (60). A coupling end piece (32) mounted on the flexible pipe (22) includes a second coupling (86). The coupling end piece (32) and the post (28) define mechanical guides including complementary frustoconical rings (64, 84). The driving of the coupling end piece (32) and of the bent-over free end (58) toward each other causes the frustoconical rings (64, 84) to engage one another to bring about coaxial alignment of the couplings (60, 86).

(1) A steel pipe that is expanded radially in a state wherein it was inserted in a well such as an oil well, characterized in that the non-uniform wall thickness ratio E0 (%) before expanding satisfies the following expression {circle over (1. E0<=30/(1+0.018alpha) {circle over (1 Wherein alpha is the pipe expansion ratio (%) calculated by the following expression {circle over (2. alpha=[(inner diameter of the pipe after expanding-inner diameter of the pipe before expanding)/inner diameter of the pipe before expanding]x100 {circle over (2 (2) A steel pipe that should be expanded radially in a state wherein it is inserted in a well, such as an oil well, characterized in that the eccentric non-uniform wall thickness ratio is 10% or less. When the embedding-expanding method is performed with use of the steel pipe of (1) or (2), lowering of collapse strength of the expanded steel pipe is prevented and bending thereof can be decreased.

A medical needle is made of a synthetic resin which is reinforced, including the point part of the needle, to reduce deformation during puncture, even when the needle is produced by injection molding. The needle is made of a synthetic resin composition which includes synthetic resin and reinforcing fiber having a length of 80 μm or below and reinforcing fiber having a length exceeding 80 μm. The number ratio of the former fiber to the whole fiber component is 40% to 90%. A synthetic resin composition for needles includes a synthetic resin and a reinforcing fiber component, wherein the composition is prepared by adding at least two kinds of fibers, namely a fiber having a mean length of 1 mm to 10 mm and a fiber having a mean length of 10 μm to 100 μm to the synthetic resin and kneading the obtained mixture.

The invention discloses an accurate forming tool of an aluminum silicon carbide composite IGBT (insulated gate bipolar translator) baseplate. The accurate forming tool comprises an aluminizing box, a guiding pipe and positioning devices, wherein the upper part of the guiding pipe is fixedly connected with a bottom surface of the aluminizing box; the upper part of the aluminizing box is provided with a cover plate which is placed in the aluminizing box, the lower part of the aluminizing box is provided with a bottom plate which is placed in the aluminizing box, the four sides of the aluminizing box are all provided with side plates which are placed in the aluminizing box; the bottom plate is provided with an impregnation flow channel of a molten aluminum alloy liquid; at least two deformation-proof partition plates are arranged among the side plates; the guiding pipe is externally sleeved with a heat preservation device. The accurate forming tool provided by the invention has the advantages that the heat preservation device can reduce the freezing rate of an alloy liquid in the guiding pipe, a final freezing region can be controlled in the position of the heat preservation device, the aluminum alloy liquid can be used for feeding a baseplate material in the aluminizing box in time, and thus a shrinkage cavity of the material is avoided; the positioning devices can strictly control the aluminum covering quantity of the two surfaces of a baseplate, the processing time is short, the cost is low, and the production efficiency is high; the aluminizing flow channel can be used for eliminating a crackle of the material and non-uniformity of an aluminum tape and the material.

The invention discloses an eye washer with high using comfort. Two eye washing nozzles are symmetrically arranged on the left and right sides of a drainage hole; the central connection line of the twoeye washing nozzles is located at the rear part of the drainage hole; the axes of the eye washing nozzles are in inclined arrangement and have forward inclined angles alpha; the left and right opposite equal angles of the two eye washing nozzles are obliquely close to each other; and the included angle between the axes of the two eye washing nozzles is beta, so that water columns can fall into the center of the drainage hole after the eye washing nozzles spray water. The eye washing nozzles can be inclined forward, and the water columns sprayed by the eye washer can have forward inclined angles, so that the bending amplitude of a waist or a neck of a user can be reduced during using; the distance of the eye washing nozzles from the edge on the front side of an eye washing basin can be increased by backward moving the eye washing nozzles; through the forward inclined arrangement of the eye washing nozzles, the water columns can fall into the drainage hole to discharge; and situations of wetting the clothes of the user or polluting the surrounding ground caused by the splashing of water drops can be avoided by leaving the position of the drainage hole.

A stainless steel bur, which can cut minute depressions etc. and even healthy dentin when necessary, allowing a technician to detect when cutting the healthy dentin is provided. It includes a removable handle (11) connected to a hand piece on the base side, a working section (12) to which a cutting blade for cutting teeth is attached to the tip, and the working section and the handle are connected to a tapered intermediate section (13). This steel bur is formed into a fiber structure by hardening austenitic stainless steel through wire drawing. Since the tapered part bends and generates vibrations when the working section is rotated to cut healthy dentin, it can be understood that the healthy dentin is being cut, and excessive cutting may be prevented. Alternatively, excessive cutting may be prevented by processing from the maximum diameter of the working section to the tip thereof through etching or the like to round cutting blade edge and make a blunt edge.

The touch panel of the invention includes an optically transparent upper substrate having an upper conductive layer formed on an undersurface thereof, an optically transparent lower substrate having a lower conductive layer formed on an upper surface thereof and facing the upper conductive layer with a predetermined space, a spacer in a frame shape disposed between the upper substrate and the lower substrate, and a polarizing plate adhered to an upper surface of the upper substrate, in which the polarizing plate is adhered to the upper surface of the upper substrate within the outer periphery of the spacer. Because the polarizing plate is attached to the upper surface of the upper substrate but within an outer periphery of the spacer, even when the panel is exposed to a high temperature and high humidity environment, the substrate is prevented from being peeled off the spacer and a loose fitness of wiring substrate is avoided, thus a touch panel of an easy operation and a secure electrical connection is obtained.

A tower crane is provided with a trolley which walks on a rail; an upright post which is uprightly arranged on the front part and the rear part of a walking direction of the trolley in approximately center of the direction which is orthognal to the walking direction of the trolley in a horizontal plane; a rack capable of lifting along the upright pose; a lifting mechanism for lifting the rack; and cable chains used for containing a plurality of cables connected with an electrical apparatus on the rack and assembled between the rack and an approximately center part at the height direction for concavely and deviously hanging downwards for changing the bending position of the rack. The cable chains are arranged at bottom of the rack relative to a fixing part at side of the rack; the cable chains are hung along the side opposite to the rack in the side of the upright post. And a specific length from the fixing part of the rack side to a linking part is formed by a first cable which has the characteristic of concavely bending upwards, and compared with the linking part, one side of the upright post is formed by a second cable which has the characteristic of concavely bending downwards.

The invention discloses a bionic fishtail structure based on PVC gel artificial muscle driving. The bionic fishtail structure comprises a multi-joint bionic fishtail framework, a plurality of PVC gelartificial muscle driving modules, a tail fin, a tail end, a skin and other accessories. The bionic fishtail framework is composed of a pre-pressing block, a joint shaft and an installation groove. Each PVC gel artificial muscle driving module is composed of a plurality of PVC gel driving units, wherein an anode, a PVC gel film and a cathode form one PVC gel driving unit; the two PVC gel driving modules and the bionic fishtail skeleton form a driving joint. Based on the structure, bending deformation is driven in a left-right alternating mode, and therefore swing is generated.

The invention relates to a method for producing a hardened sheet metal section from a flat blank, wherein the flat blank is provided with collared holes that are collared and with two groove-like indentations which serve to support the sheet metal blank on a conveyor during heating treatment in an oven; subsequently, the blank is formed in a press tool into a sheet metal section by warm forming and where, if required, the formed indentations can be flattened; and thereafter the section is hardened while remaining clamped within the tool.