70 results about "Extension ratio" patented technology

[Problems] To prevent a hip cover portion of a back-side outer sheet from swelling and curling

[Means for Solving Problems] In an underpants type disposable diaper, a ventral-side outer sheet 12F and a back-side outer sheet 12B are not connected but separated at a crotch portion, the back-side outer sheet 12F has a main unit section 13 that corresponds to joined sections 12A in an up-down direction and a back-side extension section 14 that extends below the back-side main unit section 13, the ventral-side outer sheet 12F is composed of only a ventral-side main unit section that corresponds to the joined sections 12A in the up-down direction, the back-side extension section 14 has a central portion 14M in the width direction overlapping the absorber 20 and hip cover portions 14C extending on both sides of the central portion 14M, in the back-side main unit section 13, first elongated resilient and elastic members 15 are fixed in a state of being extended in the width direction at a predetermined extension ratio; second elongated resilient and elastic members 16 are fixed to the hip cover portions 14C in a state of being extended in the width direction at a predetermined extension ratio, fourth elongated resilient and elastic members having high contracting forces are fixed to the lower end portion of the ventral-side outer sheet 12F in a state of being extended in the width direction so that the contraction forces are balanced between the ventral side and back side at the lower ends of the joined section 12A.

The method of driving a liquid crystal display in accordance with one embodiment of the present invention is a method of driving a liquid crystal display whereby a first liquid crystal panels produces a display from a first display signal and the second liquid crystal panel produces a display a second display signal derived from the first display signal, the first and second liquid crystal panels being stacked on top of each other. The luminance of the first liquid crystal panel is extended based on the luminance extension ratio obtained from the gray levels for dots contained in the first display signal and a logical maximum gray level of input image data. The luminance of the second liquid crystal panel which produces a display from the second display signal is lowered by the amount by which luminance is extended on the first liquid crystal panel. A liquid crystal display with high display quality is realized by restraining decrease in saturation which would otherwise become obtrusive when two liquid crystal panels are stacked.

A multilayer armor is provided that includes a first rigid layer, a second rigid layer, and an interlayer securing the first and second rigid layers to one another. At least one of the first and second rigid layers can include a plurality of regions with a physical or material property that varies between the regions. The interlayer can have a force-extension ratio of 5,600 psi/in or less. The interlayer can have a physical or material property that varies within the interlayer.

A pants-type disposable wearing article includes leg-circumferential first elastic members attached to crotch region's lateral margins of an outer sheet and waist-circumferential second elastic members attached to waist regions' upper margins of the outer sheet. The elastic members are joined to the sheet while the sheet and the second elastic members are stretched at given extension ratios, respectively, in a transverse direction and the first elastic members is stretched at a given extension ratio in the leg-circumferential direction so that the sheet and the first elastic members may have substantially the same leg-circumferential dimensions after these sheet and first elastic members have been relaxed and the sheet and the second elastic members may have substantially the same transverse dimensions after these sheet and second elastic members have been relaxed. In addition, the waist regions' upper margins and the crotch region's lateral margins are substantially planar.

The invention discloses large cross-section ferritic spheroidal graphite cast iron and also a preparation process thereof. According to the technical schemes, the large cross-section ferritic spheroidal graphite cast iron contains the following components according to percentages by weight: 3.6-3.9 percent of C, 1.7-3.0 percent of Si, 0.1-0.4 percent of Mn, 0.035-0.050 percent of Mg, 0.002-0.004 percent of Sb, and impurity elements of P and S, wherein the content of P in the impurity elements is controlled to be less than or equal to 0.040 percent, the content of S in the impurity elements is controlled to be less than or equal to 0.015 percent, and the rest is iron. In the invention, the extension ratio and the impact value reach and exceed the standard requirement values; in addition, the tension strength and the yield strength can also be ensured to reach requirements, and the preparation method is simple and easy.

The invention relates to a method for preparing low-temperature-resistant corrosion-resistant wind-power spherulitic graphite cast iron, which relates to a method for preparing spherulitic graphite cast iron and solves technical problems of poor impact toughness and poor corrosion resistance on a condition that the current spherulitic graphite cast iron is at -60 degrees centigrade; a preparation method comprises the following steps: 1, smelting iron liquid; 2, balling and inoculation treatment; and 3, thermal treatment; the low-temperature-resistant corrosion-resistant wind-power spherulitic graphite cast iron is acquired through the preparation method disclosed by the invention; ferrite volume fraction reaches to 95-99%; the content of residual magnesium is within 0.042-0.050%; balling process is ensured not to generate recession; anti-extension strength is 370-385N/mm<2>; yield strength is 255-268N/mm<2>; extension ratio is 24-26%; rigidity is 156-164HBW; conventional performance index is relatively high; an impact value at -60 degrees centigrade is within 12-14J/cm<2>; impact toughness is relatively good; and the method can be applied in wind-power generation equipment.

In a method for hydraulic transfer printing, comprising floating a transfer sheet comprising a polyvinyl alcohol polymer film and a print layer formed thereon on a surface of an aqueous solution while directing the print layer upward, and then pressing an article against the surface of the aqueous solution to transfer the print layer to the article, wherein the surface tension of the aqueous solution is adjust to 45 mN/m or less and the extension ratio of the transfer sheet is adjusted to 1.30 or less during the transfer. This makes it possible to transfer a high-definition print pattern to the surface of an article having irregularities or a curved surface.

The invention provides a macro-micro-mechanical arm used for an underwater robot. The macro-micro-mechanical arm mainly aims at optimizing a light underwater mechanical arm, improving the work accuracy of the light underwater mechanical arm and enlarging the work space of the light underwater mechanical arm. The macro-micro-mechanical arm is characterized in that the macro-micro-mechanical arm isformed by series connection of a macro-mechanical arm body and a micro-mechanical arm body; a five-freedom-degree series mechanical arm is adopted as the macro-mechanical arm body, and the freedom degree of the macro-mechanical arm body is one left-right swing freedom degree of the waist, two up-down swing freedom degrees of a large arm, one rotation freedom degree of a wrist and one expanding andclosing freedom degree of a paw; and the micro-mechanical arm body is of a rhombus parallel robot structure, the large extension ratio is obtained through a method that a solid shaft of a delivery chain is replaced with a virtual shaft of a rhombus mechanism, the micro-mechanical arm body has three freedom degrees which are two rotation freedom degrees and one movement freedom degree. The macro-micro-mechanical arm can improve the working performance of the underwater robot, the structure is compact, under the condition that the same space is occupied, the work space of the macro-micro-mechanical arm is much larger than that of a conventional mechanical arm, and the work accuracy of the macro-micro-mechanical arm is higher than that of the conventional mechanical arm.

The invention discloses a curved display screen, which comprises a front polarizer, a front curved glass plate, a color filter, a liquid crystal layer, a thin film transistor matrix consisting of a plurality of thin film transistors, a rear curved glass plate and a rear polarizer, wherein the color filter, the liquid crystal layer and the thin film transistor matrix are packaged between the front and rear glass plates; the liquid crystal layer is positioned between the color filter and the thin film transistor matrix; the front polarizer is attached to the outside of the front glass plate, and the rear polarizer is attached to the outside of the rear glass plate; each of the front and rear glass plates is formed by extending a flat glass plate; and the thin film transistors are subjected to pre-compression before the extension of the front and rear glass plates, and a compression ratio of the pre-compression is determined to be an inverse ratio of the extension ratio according to an extension ratio of each thin film transistor after the extension of the flat glass plates to the curved glass plates. The invention also provides a method for manufacturing the curved display screen.

The invention discloses a method and a system for providing an image of a virtual game scene. The method comprises the following steps of processing a three-dimensional high-precision model to obtain a high-precision chartlet; sticking the chartlet to a three-dimensional low-precision model; setting a visual angle between a video camera and a ground surface model in a game model as a fixed angle; obtaining an extension ratio of a ground surface according to the visual angle and a first representation proportion in the ground surface model; extending the ground surface according to the extension ratio and enabling a ground surface frame without an extension visual effect to be presented in the video camera; setting the representation proportion in the three-dimensional low-precision model as a second proportion and enabling the three-dimensional low-precision model without the extension visual effect to be presented in the video camera; placing the three-dimensional low-precision model at the corresponding position in the ground surface. According to the method and the system disclosed by the invention, under the conditions that experience effects of a perspective sense and a three-dimensional sense of a client to a game can be ensured, the loading and the processing of the client on game resources are reduced and the plugin-free running of an intelligent terminal with low hardware environment configuration or a desktop computer with a FLASH platform can be realized.

The invention relates to a rare earth-containing high-strength atmospheric corrosion-resistant seamless steel pipe and a production method thereof, and belongs to the technical fields of metallurgy and molding. According to the rare earth-containing high-strength atmospheric corrosion-resistant seamless steel pipe, the raw materials comprise 90 wt% of blast furnace molten iron and 10 wt% of high-quality waste steel; the pipe billet comprises the following chemical components: 0.05 to 0.10 wt% of C, 0.10 to 0.30 wt% of Si, 1.00 to 1.30 wt% of Mn, less than or equal to 0.020 wt% of P, less than or equal to 0.005 wt% of S, 0.70 to 1.00 wt% of Cr, 0.10 to 0.30 wt% of Mo, 0.20 to 0.40 wt% of Ni, 0.30 to 0.50 wt% of Cu, 0.01 to 0.03 wt% of Ti, 0.01 to 0.04 wt% of Al, 0.0005 to 0.0100 wt% of RE and the balance of Fe and trace elements which cannot be detected. The process flow comprises pretreatment of the molten iron, top and bottom combined blowing converter smelting, ladle furnace (LF) refining, vacuum distillation (VD) vacuum treatment, round billet continuous casting, cutting, pipe billet heating, perforation, tandem rolling, reheating, sizing, cooling, saw cutting, heat treatment, straightening and flaw detection. The rare earth-containing high-strength atmospheric corrosion-resistant seamless steel pipe comprises the following mechanical properties: the yield strength is 620-670 MPa; the tensile strength is 730-820 MPa; the yield ratio is less than or equal to 0.86; the extension ratio is more than or equal to 23 percent; the transverse impact value is more than or equal to 100 J/cm<2> (-40 DEG C); the shear ratio is 100 percent; the grain size is more than or equal to 8.5 level; the hardness is less than or equal to 22.0 HRC; and the residual stress is less than or equal to 30 MPa. The seamless steel pipe has the characteristics of high strength, good toughness, small grain size and good atmospheric corrosion resistance.

A disposable diaper easy to put on a wearer in a standing position comprising a liquid permeable topsheet 2, a liquid impermeable backsheet 3, an absorbent member 4 interposed between the two sheets and having a pair of laterally extensible side parts on the below-waist portion of one longitudinal end section and a pair of standing gathers, wherein the region having the absorbent member in the crotch section contains a region having a lateral flexural stiffness of 25 gf/50 mm or less, the standing gathers are formed by fixing an elastic member at a fixing extension ratio of 100% or higher, and the standing gathers on each side, when extended in their non-fixed state, have a tensile load of from 20 to 120 gf at an effective extension ratio (fixing extension ratio - 30%), and provides a tensile load increase rate of 1.0 gf/% or lower required to extend from a 20% extension ratio to the effective extension ratio.

A method for producing an extruded polystyrene foam in which when a foamable melted product, obtained by heat-melting a styrene resin composition and adding a foaming agent thereto in an extruder provided with a die slit section having an opening a (mm) in the thickness direction, is extrusion-foamed through the die slit section into a low pressure zone to form a plate-shaped foam, thereby obtaining an extruded polystyrene foam having a density of 20 kg/m³ or more and 45 kg/m³ or less, a closed cell ratio of 90% or more, and a thickness A (mm) of 10 mm or more and 150 mm or less, a foaming agent containing hydrofluoroolefin and other organic foaming agent is used, a thickness extension ratio A/a of an opening a in the thickness direction of the die slit section and a thickness A of the extruded polystyrene foam is adjusted to 18 or less, and a foamable melted product, just before the extrusion from the die slit section, is pressurized to 4.5 MPa or more and 10.0 MPa or less.

The invention provides a method for efficiently dispersing graphene into a polymer. The method includes the steps that a large amount of the graphene is directly mixed with the polymer at first, and the graphene is pre-dispersed into the polymer; then stretching is performed on a two-way stretching machine to form a sheet (stretching is based on the maximum extension ratio), the graphene is stretched and dispersed in the stretching process, stretching is conducted repeatedly for 3-5 times, the graphene is overlapped, reunion points are forcefully dispersed into the polymer, and extrusion pelletizing is conducted after kneading to obtain polymer particles with the graphene being dispersed; and the polymer particles are generally used in the polymer as a master batch. The method is simple, high in efficiency and suitable for large-scale preparation of the high-dispersion graphene polymer on existing mature equipment.

The invention discloses a bar-shaped composite insulator comprising a core bar, fittings arranged at two ends of the core bar and sheaths with an umbrella skirt structure; the sheaths are covered on the core bar externally; fittings at compression joint positions of the fittings and the sheaths are internally provided with two annular grooves respectively; the upper dip angle of the umbrella skirt structure is 8 degrees and the lower dip angle of the umbrella skirt structure is 0 degree; the umbrella structure comprises large umbrellas with the same diameter and two small umbrellas with the same diameter between every two adjacent large umbrellas, or large umbrellas with the same diameter and one umbrella with the same diameter between every two adjacent large umbrellas, wherein the large umbrellas are coaxially arranged with the core bar; and umbrella spacing, extension ratio of the umbrellas and umbrella extension are designed reasonably so as to optimize the umbrella structure, thereby reaching the optimal pollution flashover property. The annular grooves are arranged inside the fittings at the compression joint positions of the fittings and the sheaths, thus the grooves are full of the compressed sheaths, thereby realizing the high-intensity sealing and preventing the composite insulator from breaking in use.

The invention relates to fully-degradable polycaprolactone (PLC) film and a production method thereof. The fully-degradable polycaprolactone film has a spontaneous gas regulating function. The production method comprises the steps that polycaprolactone master batches are dried in a vacuum drying box; the dried polycaprolactone master batches are subjected to melt extrusion in a twin-screw extruder; a cast sheet is formed on a flow-casting roller; the cast sheet is stretched in the longitudinal direction according to uniaxial extension ratio of 3-5, and the fully-degradable polycaprolactone film which is uniaxially stretched in the longitudinal direction is obtained. By means of PCL freshness protection packages, the shelf life of strawberries is effectively prolonged and reaches 20-28 days, and the fully-degradable polycaprolactone film has great significance on the aspect of the application of environment-friendly materials in food packaging.

The invention discloses a method for manufacturing a cable for a high-temperature gas cooled reactor, and the method the following process flows: material selection-wire drawing-conductor twisting-finished product manufacturing-finished product packaging storage. The method is characterized by comprising annealing-extrusion of an insulating layer-extrusion of an outer sheath, wherein the annealing step means that an annealing silver plating machine is used for plating silver with the thickness of 6-20mu m on a copper monofilament surface; and the extrusion of the insulating layer and the extrusion of the outer sheath mean that screws with a high compression ratio of 3.5:(1-5.0):1 are used, extrusion equipment is provided with a good cooling device, the extrusion processing temperature of the extrusion equipment is controlled between 360 DEG C and 420 DEG C, a pipe-extrusion mould with the high extension ratio is selected as an extrusion mould, and the selected mating extension ratio is 30-50. The cable manufactured by the method provided by the invention has the characteristics of strong ambient temperature adaptability, high conductivity and strong electromagnetic compatibility.

The invention discloses high-modulus and low-extension polyester industrial yarns used for geofabric and a production method thereof. The high-modulus and low-extension polyester industrial yarns comprise the following raw material such as 50-70 parts by weight of terephthalic acid, 20-30 parts by weight of glycol, 0.018-0.035 parts by weight of catalysts and 0.35-0.75 parts by weight of oil agents. A solid phase polymerization reactor is used for performing tackifying operation and used in conjunction with multi-head spinning technology and two-level drafting and one-level relaxation and heatsetting operation. Additionally, a twin-type winding machine is used for high-speed winding operation such that high-modulus and low-extension polyester industrial yarns used for solid-phase tackifying multi-head direct-spinning geofabric are achieved. During the above processing operation, drafting ration, relaxation ratio, drafting temperature and relaxation temperature help ensure breaking strength at the constant extension ratio of 5% during processing of polyester industrial yarns. During the application process, requirements for strength, drafting and anti-aging and other performance parameters are met.

The invention provides a refrigerator. The refrigerator comprises a door seal. The door seal comprises a connecting wall, a body part arranged on the rear side of the connecting wall and an inserting-connection part arranged on the front side of the connecting wall. The body part comprises an accommodating cavity wall, a supporting cavity wall, a first airbag wall and a second airbag wall, wherein an accommodating cavity used for mounting of a magnetic attraction part is defined in the accommodating cavity wall; the supporting cavity wall is arranged on the front side of the accommodating cavity, and a supporting cavity is jointly defined by the inner surface of the supporting cavity wall and part of or all the front surface of the accommodating cavity wall; the first airbag wall extends to the connecting wall from the front surface or the outer surface of the side, facing the center of a door body, of the supporting cavity; and the second airbag wall extends to the connecting wall from the outer surface of the side, facing the center of the door body, of the accommodating cavity wall. The door seal of the refrigerator is closely attached to a refrigerator body, the extension ratio of the door seal is increased, and accordingly the leakproofness of the refrigerator can be improved. In addition, an integral face structure is formed by the outer side faces of the door seal, so that the attractiveness of the outer side faces of the door seal is improved, and dust can be prevented from hiding in the door seal and influencing cleanliness.

The invention relates to a preparation method for highly flat fibers, which adopts dry jet wet spinning process, spinning solution enters into a first precipitating bath after being squeezed out through an elliptical or linear shaped spinneret hole, the extension ratio of a spinneret is 2 to 10 times, and the content of solvent in the filament of the precipitating bath is 25 to 50 wt percent; then solidification and stretching are performed inside a second precipitating bath, and the solidification and stretching refer to stretching is performed during a continued solidification process; and then after water washing, drying and stretching are performed, and the highly flat fibers can be prepared. The highly flat fibers prepared in the invention has the characteristic of excellent performance on aspects of luster, elasticity, anti-pilling, fluffiness, hand feeling and the like, the highly flat fibers can form an airflow passage with dimension and form which cannot be achieved by a common round section when being used as filtering material, and has a great development space in the application field having special requirements.