57results about How to "Small stretch" patented technology

The invention discloses a plugging corridor used for the vacuum pipe traffic, which comprises: a tube-shape fixed corridor (6) is equipped in station department with one end embedded in a vacuum pipe (1), and another end is connected with the station platform, junction of the fixed corridor (6) and vacuum pipe (1) is sealed; a telescopic corridor (9) is sealing nested in anterior inner wall of the fixed corridor (6); One end of the flexible mechanism (10) is linked with the telescopic corridor (9), and another end is connected with the fixed corridor (6), and the front end of telescopic corridor (9) fits the peripheral shape around the door (3) of the train carriage (2) and is equipped with sealing strip (11); The middle rear part of the fixed corridor (6)is equipped with a sealing door (7), one pneumatic valve (8)is provided on the sealing door (7) or the fixed corridor (6) wall before the sealing door (7). Within a short period of time, it can accomplish getting on or off of passengers in vacuum pipe, and improves the running efficiency of train with little power consumption and simple structure.

A pair of men s shorts, including under shorts, has a typical chassis with an abdomen opening, a right pant leg and a left pant leg. The user's genitals pass through an opening on the front of the chassis whenever the shorts are being worn. A hammock overlies the opening and is anchored to the chassis at two points on the right out seam, one point below the other, and two points on the left out seam, symmetrical with the right out seam attachment. The hammock is also attached to the chassis at the waist band and at the lower edge of the opening just above the left and right inseam joinder area. The hammock by being anchored at the out seams and being non-stretching in a transverse direction, acts as a sling in supporting the genitals of the user.

A component mounting position is corrected in accordance with a printing misalignment amount of a solder with respect to an original mounting position on a board at which a component is to be mounted. More specifically, a mounting position of a predetermined correction object component is corrected in accordance with the printing misalignment amount of the solder printed on a predetermined detection object electrode.

The invention relates to a multi-barrel magnetorheological damping shock absorber capable of achieving cooperative work. The magnetorheological damping shock absorber comprises at least one first damper and at least one second damper which are arranged on a base in a parallel connection mode, each second damper comprises a second liquid storage cylinder arranged on the base, magnetorheological liquid is contained in the second liquid storage cylinders, second piston assemblies are arranged in the second liquid storage cylinders, the tops of the second piston assemblies are connected with second piston rods, the second piston rods stretch out of the tops of the second liquid storage cylinders and vertically move in the second liquid storage cylinders along with the second piston assemblies, second snakelike magnetorheological liquid channels are formed in the second piston assemblies, the portions, close to the inner surfaces of the second liquid storage cylinders, of the second piston assemblies are provided with second external magnet exciting coils, and the inner surfaces of the second liquid cylinders are provided with multiple sets of permanent magnetic rings with the same magnetic heading. Compared with the prior art, the multi-barrel magnetorheological damping shock absorber has the advantages that the regulating range of tensile resisting and compression resisting is wide, the universality is high, and the damping shock absorber is not prone to be damaged.

A semiconductor device having interconnects is reduced in leakage current between the interconnects and improved in the TDDB characteristic. It includes an insulating interlayer 108, and interconnects 160 filled in grooves formed in the insulating interlayer, including a copper layer 124 mainly composed of copper, having the thickness smaller than the depth of the grooves, and a low-expansion metal layer 140, which is a metal layer having a heat expansion coefficient smaller than that of the copper layer, formed on the copper layer.

The invention relates to a semi-conductor lead framework production process which includes the steps of smelting, continuous casting, continuous extrusion, cogging, severe convection annealing, continuous inclination rolling, spreading-type bright annealing, finishing rolling, positioning-type edge shearing, degreasing passivation, stamping, surface processing, cutting forming and detection piece packaging. The production process is characterized in that the two work procedures of finishing rolling and positioning-type edge shearing are provided with continuous grooving procedures, when continuous grooving is carried out, precise grooving processing is carried out through a grooving machine, the rotation speed of the grooving machine is 1800-2000 r/min, the flow of cooling liquid is 45-50 L/min, and dovetail groove forming achieving through the process cannot cause strip width changes after forming, and the size of a formed semi-conductor lead framework is accurate.

The invention relates to a safety belt-type bag and a weaving method thereof. The external bag body is mainly weaved from at least one longitude belt and one latitude belt. The whole fixed longitude belts present a ring structure, with the two ends respectively arranged at the edges of the external upper part of the internal bag body; and the latitude belts are respectively arranged at the inside parts or the surfaces of the longitude belts. The weaving method includes the following steps: cutting a plurality of longitude belts and latitude belts out into suitable length, arranging the longitude belts in order, and arranging the latitude belts on the bottoms and the surfaces of the longitude belts in order from top to bottom through interpenetration or superposition so as to form a desirable shape. The weaving method is simple and practical, not only avoids the problem that the splicing joints and the stitched parts are easy to break and craze, but also improves the overall tensile-strength of the bag, thus improving the overall fastness and the durability of the bag.

The invention provides a Ti-Ni based shape memory alloy vacuum electron beam connecting technology. Concretely, vacuum electron beams are used for achieving connection of Ti-Ni-X alloy, wherein X can be Nb, Mo, Cu, Hf and the like. An existing connecting mode of Ti-Ni based shape memory alloy has the problems of being low in weld strength, thick and big in grain structure, prone to generating cracks and the like. The electron beams which are strong in penetrating power, high in energy transformation ratio and good in controllability are adopted as a welding hot source, therefore, time of the whole connecting process is shortened, a heat affected zone is reduced, weld defects are reduced, moreover, narrow weld seams can be obtained (the width is smaller than 1mm), mechanical performance and the memory effect of welded material are ensured to the maximum extent, after parameter optimization, the strength of a electron beam welding connector can reach over 75% that of parent material, and the memory effect can reach over 85% that of the parent material.

A device and a method for manufacturing plastic containers, where a preform is manufactured in a casting mold and finished in a blow mold, and to ensure a constructively simple realization and an improved temperature control, the casting mold and the blow mold are lined up to form a mold complex.

The invention discloses an 8-shaped low-addition decay type optical cable which comprises a cable core and a suspension wire, wherein the cable core is connected with the suspension wire through a suspension band, the cable core comprises a first reinforcement piece, a first outer protection layer and transmission optical fibers, the suspension wire comprises a second reinforcement piece and a second outer protection layer, the first reinforcement piece is made of non-metal high-strength fibers, a column body is arranged on the periphery of the first reinforcement piece, the column body is tightly combined with the first reinforcement piece, longitudinally extends along the first reinforcement piece, and is made of macromolecule materials, at least one groove is formed in the outer surface of the column body, at least one transmission optical fiber is placed inside the groove, the first outer protection layer which is made of the macromolecule materials is arranged on the periphery of the column body, and the second reinforcement piece is made of the non-metal high-strength fibers. The 8-shaped low-addition decay type optical cable has the advantages of being simple in structure, reasonable in design, low in cost, flexible in use mode, good in use effect, capable of effectively reducing additional decay changes, caused by environmental factors, of the transmission fibers, and wide in market application prospect.

The invention discloses an additional attenuation type optical cable for sensing. The optical cable comprises a reinforcement member, an over sheath, a cylinder and transmission fibers. The cylinder, which is arranged on the external surface of the reinforcement member, is tightly combined with the reinforcement member and extends vertically along the reinforcement member; at least one groove is arranged on the surface of the cylinder and at least one transmission fiber is placed in the groove; and the over sheath is arranged at outer surface of the cylinder. According to the invention, the provided optical cable has advantages of simple structure, reasonable design, low cost, flexible using mode and good using effect; and moreover, changes of additional attenuation of transmission fibers in an optical cable can be effectively eliminated, wherein the changes are caused by an environmental factor. Therefore, the provided optical cable has wide market application prospects.

The invention belongs to the technical field of aviation aircraft design, and discloses a flying wing layout wide-speed-range aerodynamic operation stability characteristic structure, a wing body and flying wing layout integrated aircraft body, double wings of the aircraft body adopt double sweepback layout, the wings are divided into inner wing sections and outer wing sections, the inner wing sections are wing sections fused with the aircraft body, and the sweepback angles of the front edges of the inner wing sections are large; the sweepback angle of the front edge of the outer wing section is small; the outer wing section is further divided into an outer wing section fixing section and an outer wing section foldable section, the outer wing section fixing section is fixedly connected with the inner wing section, the outer wing section foldable section is in shaft driving connection with the outer wing section fixing section through an outer wing section rotating shaft, and the outer wing section foldable section rotates relative to the outer wing section rotating shaft so as to be folded upwards. When the structure is applied, different aerodynamic and operation stability performance requirements of low-speed take-off and landing, high subsonic speed cruise and supersonic speed cruise design points can be considered.

The invention relates to a stretch-resistant solid wood floor and a manufacturing method thereof. The solid wood floor includes a body, which is composed of several floor boards made of logs, and the floor boards have two upper and lower board surfaces opposite to each other. And two sets of opposite side walls, the two panels are parallel to the tree growth direction, wherein a set of side walls formed along the tree growth direction is the splicing surface, and a set of side walls formed along the tree ring direction is the annual ring side Each of the floor boards is joined together to form the floor by means of corresponding splicing surfaces, and each annual ring side wall is located on both sides of the floor. In this way, the expansion and contraction of trees in the growth direction is much smaller than that in the growth ring direction, so that the formed floor is not easy to expand and deform in the width direction. To absorb the expansion and deformation of the floor in the length direction, so as to avoid defects such as warping, deformation, and arching after the floor is paved.

The invention discloses a method for manufacturing a cold-drawing formed sealing pad. The method comprises the following steps that firstly, a strip is manufactured, wherein one end of a steel belt (1) is coiled, and a braided rope (2) is cut off according to the length of the steel belt (1) and placed in the coiled steel belt to be wrapped tightly; secondly, a drawing die is fixed to a lathe; thirdly, drawing die formation is carried out, wherein the strip partially makes contact with the drawing die, the included angle of 7-15 degrees is formed between the strip and the center line of the drawing die, and then a part is drawn and manufactured in the drawing die of the lathe; fourthly, the part is straightened. In the step of drawing die formation, the lathe is in a self-acting feed mode, the strip can pass through the drawing die at a constant speed, the cross section of the strip is firstly drawn to be circular, and then the strip is drawn to be the part in a needed shape. Parts machined according to the method are good in size consistency, the oversize phenomenon barely occurs, and the qualified rate of the parts is high.

The invention discloses application of cellulose in an occasion of graphite grinding particles, and in particular relates to the technical field of grinding oil recovery and filtration. Specifically, the cellulose is used as a filter aid during recovery and filtration of graphite grinding oil for grinding, the cellulose controls the content of fine graphite particles in the grinding oil, the usage period of the grinding oil is prolonged, the reasonable additive amount is increased, the usage cost of equipment and the environment pollution are reduced, and the production efficiency is improved.

The invention discloses a force feedback closed-loop control composite bonding device. A micro-moving device is driven by a macro-moving device to perform transverse translation and vertical translation; the micro-moving device comprises a giant magnetostrictive actuator, and the length of the giant magnetostrictive actuator is changed to drive a mounting rod to move, and the telescopic amplitudeof the giant magnetostrictive actuator is very small, so that the giant magnetostrictive actuator is used for driving the mounting rod to accurately move in a small range; a strain gauge is used for detecting the contact force between the mounting rod and a substrate; the strain gauge is used for providing feedback for the micro-moving device, and the telescopic amount of the giant magnetostrictive actuator is controlled according to detection signals; when a chip is relatively far away from the substrate, the macro-moving device moves quickly, the macro-moving device is stopped when reachinga relatively close distance from the substrate, the micro-moving device drives the chip to move, and when the chip contacts the substrate, a contact force is generated, and feedback is formed throughthe contact force, so that larger pressure is avoided on the chip; and the macro-moving device or the micro-moving device is used for driving in different stages of mounting, so that the contact force is accurately controlled on the basis of guaranteeing the mounting efficiency, and the chips are prevented from being crushed.

The invention relates to a packaging mesh bag and belongs to the technical field of shopping bags. The packaging mesh bag comprises a plurality of positioning rods (3), a plurality of support rods (5), a plurality of vertical rods (6) and breathable meshes (7), wherein the plurality of positioning rods (3), the plurality of support rods (5) and the plurality of vertical rods (6) are telescopic rods; the plurality of support rods (5) are fixedly connected with each other from head to tail to form a polygon; a vertical rod (6) is vertically and fixedly connected with each junction between the plurality of support rods (5); the support rods (5) and the vertical rods (6) are sleeved with the breathable meshes (7); two ends of each positioning rod (3) are fixedly connected with two corresponding side walls of each breathable mesh (7). The packaging mesh bag is a telescopic structure and is convenient to store and small in occupied area; when the packaging mesh bag is used, the positioning rods are used for expanding the breathable meshes, so that the breathable meshes cannot squeeze commodities under the action of tension of hands; the situation that the commodities are squeezed and damaged can be avoided; the commodities can be fastened on the positioning rods, so that the commodities can be neatly and uniformly stored.

A vacuum piston device used in ink supply system, includes: a cylindrical piston body; a conic bulge set at a central area of a frontal end face of the cylindrical piston body; and a piston lid mounted at a rear end face of the cylindrical piston body; at least one exhaust pore is set on the frontal end face around the conic bulge and all the way goes through to the rear end face; an annular groove is formed on the rear end face in such a manner that inner and outer walls of the annular groove project out from the rear end face; the piston lid is for covering the annular groove, and eventually for sealing the whole piston.

The invention designs hart polyester yarns, wherein, specification parameters thereof are: the dezitex of a single tow is 308DTEX; the joint stock number is 16; the single fiber number is 19.25DTEX; the strength is 5.3CN/DTEX; the elongation is 13 percent; and the boiling water shrinkage is 3.5 percent. The technique for manufacturing the hart polyester yarns designed by the invention mainly comprises the procedures of slice transportation, drying, screw spinning box spinning, stretching, and convolution, and the like; the spinning viscosity loss is controlled to be less than or equal to 0.01dl/g; the screw pressure of the screw spinning box is controlled at 12 plus or minus 0.5MPA; the spinning speed is 4200m/min; spinneret orifices of a spinneret plate are arranged in U shape; high temperature resistant oil is adopted for the oiling technology and the oil tanker speed is 15r/min; a totally enclosed air duct is adopted for a lateral blow cooling device which is cooled by an additional cooling device; the drafting multiple during all-drafting involution is controlled to be more than 3.8 times; the temperature of a first hot roller is set to be 100 DEG C; the temperature of a second hot roller is set to be 175 DEG C; an involution forming central angle is controlled to be 4.7 degrees; and the molding tension for controlling a spinning cake is controlled to be below 35CN. The hart polyester yarns obtained in the invention is terylene filament between industry yarn and apparel screen. The hart polyester manufacturing technique of the invention conquers former technical difficulty that the hart polyester yarns with the specification can only be manufactured by using industry yarn equipment or by two-step textile.

The invention discloses a wooden puzzle maze candy bottle, which comprises a candy bottle. A lighting lamp is installed at the bottom of the candy bottle. The lower half of the lighting lamp is equipped with a battery. A first Bottom plate, the upper surface of the first bottom plate is connected with a spring, the other end of the spring is connected to the lower surface of the bearing plate, the first bottom plate and the bearing plate are arranged parallel to each other, and the spring is located between the first bottom plate and the bearing plate In the middle position, the mouth of the candy bottle is equipped with a second bottom plate, the center of the second bottom plate is provided with a through opening, the second bottom plate and the first bottom plate are arranged parallel to each other, and the upper surface of the second bottom plate is installed A labyrinth channel, a labyrinth entrance is arranged at the center of the labyrinth channel, and the labyrinth entrance is connected with a port to form a channel. The present invention arranges a spring and a lighting lamp inside the candy bottle, realizes the functions of picking up the candy and illuminating it, and has the advantages of simple structure and good use effect.

The invention discloses a multifunctional massager which comprises massage bodies and a handle. The handle is composed of a first handle and a second handle. One end of the first handle is connected with a claw-shaped massage body, one end of the second handle is connected with a hammer-shaped massage body, the first handle is in thread connection with the claw-shaped massage body, and the second handle is in thread connection with the hammer-shaped massage body. A grabbling sleeve is arranged on a claw head of the claw-shaped massage body, and an elastic column-shaped body is arranged on the hammer-shaped massage body. The handle of the multifunctional massager is formed by two parts and is relatively long. An arm is not needed to be stretched highly, the stretching and contracting range of the arm is small, strength is saved, a massage effect is good, and utilization is quite convenient. The handle of the multifunctional massager can be divided into two handles which are respectively provided with a massage body, so people can conveniently massage a body by hand through the massager simultaneously so as to improve massage efficiency. A rubber body is arranged on surfaces of the massage bodies, so damage to skin is not easily caused when the body is massaged.