7315 results about "Shock resistance" patented technology

In a semiconductor integrated circuit sandwiched between a pair of a first impact resistance layer and a second impact resistance layer, an impact diffusion layer is provided between the semiconductor integrated circuit and the second impact resistance layer. By provision of the impact resistance layer against the external stress and the impact diffusion layer for diffusing the impact, force applied to the semiconductor integrated circuit per unit area is reduced, so that the semiconductor integrated circuit is protected. The impact diffusion layer preferably has a low modulus of elasticity and high breaking modulus.

The invention relates to the technical field of radar, in particular to a millimeter-wave quasi-optical integrated dielectric lens antenna and an array thereof. The array consists of a microstrip integrated antenna, a dielectric lens, an objective lens, an array base, a reflecting mirror, a protective cover and a beam transfer switch; one end face of the dielectric lens is a hemisphere or an ellipsoid, while the other end face is a cylindrical section; the microstrip integrated antenna is generated by an dielectric substrate, the front surface of the dielectric substrate is closely adhered tothe cylindrical section of the dielectric lens and serves as a feed source, and the back surface is grounded; the hemispherical or ellipsoidal end face of the dielectric lens is an antenna radiating surface; the length of the cylindrical part of the dielectric lens can be changed; the antenna array is arranged into a linear array or an area array; the array base and the reflecting mirror have conical quasi-optical reflecting mirror surfaces; the focus of the objective lens of the linear array or the area array aligns with the central line of the dielectric lens; the protective cover is arranged outside; and the antenna array is controlled by the beam transfer switch. The antenna structure has strong shock resistance and dust prevention, and is suitable for millimeter-wave radars for planes, automobiles and ships, and receiving / emitting sensing of communication equipment.

A method of fabricating a driver circuit for use with a passive matrix or active matrix electrooptical display device such as a liquid crystal display. The driver circuit occupies less space than heretofore. A circuit (stick crystal) having a length substantially equal to the length of one side of the matrix of the display device is used as the driver circuit. The circuit is bonded to one substrate of the display device, and then the terminals of the circuit are connected with the terminals of the display device. Subsequently, the substrate of the driver circuit is removed. This makes the configuration of the circuit much simpler than the configuration of the circuit heretofore required by the TAB method or COG method, because conducting lines are not laid in a complex manner. The driver circuit can be formed on a large-area substrate such as a glass substrate. The display device can be formed on a lightweight material having a high shock resistance such as a plastic substrate. Hence, a display device having excellent portability can be obtained.

The invention relates to the technical field of radar, in particular to a millimeter-wave quasi-optical integrated dielectric lens antenna and an array thereof. The array consists of a microstrip integrated antenna, a dielectric lens, an objective lens, an array base, a reflecting mirror, a protective cover and a beam transfer switch; one end face of the dielectric lens is a hemisphere or an ellipsoid, while the other end face is a cylindrical section; the microstrip integrated antenna is generated by an dielectric substrate, the front surface of the dielectric substrate is closely adhered tothe cylindrical section of the dielectric lens and serves as a feed source, and the back surface is grounded; the hemispherical or ellipsoidal end face of the dielectric lens is an antenna radiating surface; the length of the cylindrical part of the dielectric lens can be changed; the antenna array is arranged into a linear array or an area array; the array base and the reflecting mirror have conical quasi-optical reflecting mirror surfaces; the focus of the objective lens of the linear array or the area array aligns with the central line of the dielectric lens; the protective cover is arranged outside; and the antenna array is controlled by the beam transfer switch. The antenna structure has strong shock resistance and dust prevention, and is suitable for millimeter-wave radars for planes, automobiles and ships, and receiving / emitting sensing of communication equipment.

A bistable electroactive polymer transducer is provided for electrically actuated deformation of rigid electroactive polymer members. The polymers have glass transition temperatures (Tg) above ambient conditions and turn into rubbery elastomers above Tg and have high dielectric breakdown strength in the rubbery state. They can be electrically deformed to various rigid shapes with maximum strain greater than 100% and as high as 400%. The actuation is made bistable by cooling below Tg to preserve the deformation. The dielectric actuation mechanism includes a pair of compliant electrodes in contact with a dielectric elastomer which deforms when a voltage bias is applied between the pair of electrodes. In some of the transducers of the present invention, the dielectric elastomer is also a shape memory polymer. The deformations of such bistable electroactive polymers can be repeated rapidly for numerous cycles. The polymer transducers have such advantages as high energy and power densities, quietness, mechanical compliancy (for shock resistance and impedance matching), high efficiency, lightweight, and low cost.

The invention relates to a precast hollow floor board with spatial structure and its application. The floor board includes hollow form and cavity, and features including structural bottom slab and structural sub-rib. The structural bottom slab and structural sub ribs contain reinforcing bars or wire mesh to form an integrated load-bearing member with an inverted T-shape. There are exposed bars ormesh on the structural bottom slab. The thicknesses of structure bottom slab and structural sub-rib are larger than the thickness of hollow form whose upper part and side parts are connected to the structural sub-rib, and lower part is connected to the structural bottom slab so as to form a closed integral body. The invented precast hollow floor board possesses advantages of simple structure, high strength, easy for handlings, good shock resistance and reduced structural dead wt..

The invention discloses an environmental-protection anti-corrosive heat-dissipation powder paint, and a preparation method and application thereof. The environmental-protection anti-corrosive heat-dissipation powder paint comprises the following raw materials in parts by weight: 40-90 parts of matrix resin, 2-40 parts of curing agent, 0.5-10 parts of carbon nanotube, 0.5-2 parts of additive, 0-4.5 parts of hexagonal boron nitride, 0-15 parts of aluminum nitride, 0-10 parts of magnesium nitride, 0-10 parts of silicon carbide and 5-30 parts of pigment and filler. The composition and proportioning of the raw materials of the powder paint disclosed by the invention are scientific and reasonable. The experimental result indicates that the powder paint has the advantages of favorable heat-dissipation effect, high efficacy enhancement rate (higher than 60%) and favorable cooling effect (more than 20 DEG C), and can effectively solve the problem of poor heat-dissipation effect in the high-power electronic product, thereby prolonging the service life of the electronic product. The powder paint disclosed by the invention is free of organic solvent, and is environment-friendly and safe; the powder paint disclosed by the invention also has favorable comprehensive properties, such as flexibility, hardness, adhesive force and the like, and stable chemical properties; and the coating formed by the powder paint has the advantages of high corrosion resistance and shock resistance, favorable insulation property and wide application range.

The invention relates to a bi-component polyurethane coating which is prepared from a component A and a component B in a weight ratio of 1:(1-3), wherein the component A comprises the following materials in parts by weight: 40-80 parts of polylol, 20-50 parts of polyisocyanates, 1-10 parts of plasticizer and 0-5 parts of storage stabilizing agent; and the component B comprises the following materials in parts by weight: 10-40 parts of polylol, 10-40 parts of liquid filler, 5-10 parts of crosslinking agent, 30-60 parts of solid filler, 3-15 parts of plasticizer, 0.1-8 parts of thixotropic agent, 0-5 parts of pigment and 0.2-5 parts of additive. The bi-component polyurethane coating is suitable for water prevention, permeability resistance, corrosion resistance and protection of a horizontal plane, can be thickly coated and constructed (>3mm / turn) on complex parts such as a vertical surface and an incline, does not generate sagging and bubble phenomena in a construction process, is full in color, and has the advantages of excellent mechanical property, shock resistance, water resistance and corrosion resistance.

The invention relates to a chlorinated polrvinyl chloride modified material as well as a preparation method and application thereof. The raw material formula of the chlorinated polrvinyl chloride modified material comprises the following components in parts by weight: 40-90 parts of chlorinated polrvinyl chloride, 20-70 parts of polrvinyl chloride, 5-30 parts of modified resin, 1.5-10 parts of heat stabilizing agent, 20-60 parts of plasticizer, 1-10 parts of antioxidant, 1-10 parts of lubricating agent, 5-40 parts of filling agent, 8-40 parts of fire retardant, 8-40 parts of flame retardant synergist and 1-20 parts of polrvinyl chloride processing aid. Compared with the known CPVC (chlorinated polrvinyl chloride) modified plastic, the CPVC modified plastic disclosed by the invention is more excellent in physical and mechanical properties and is relatively reduced in cost; and compared with the known CPVC modified plastic, the CPVC modified material disclosed by the invention is obviously improved in heat resistance and flame retardant property (oxygen index can reach about 45%, and simple root of CPVC modified material can be vertically burnt) besides more excellent processabilityand obviously improved material brittleness and shock resistance. Thus, the CPVC modified material disclosed by the invention is suitable for being used as a wire and cable sheath material.

The invention belongs to polymer modification technical field and processing technology field, and discloses a flame-retardant antistatic high-strength thermoplastic composite material and its preparation method. The material comprises (by weight share) 80-100 thermoplastic resin, 50-120 reinforcing fiber, 8-18 flame retardant, 0-5 flame retardant synergistic agent, 0.5-1.8 antistatic agent, 15-30 compatibilizer, 4-10 composite antioxidants, and 0-80 other additives. The invention also discloses the thermoplastic composite material preparation method. The inventive lame-retardant antistatic high-strength thermoplastic composite material has high tension and bending strength, high impact resistance property at low and high temperature, obvious antistatic property, high flame-retardant and fire proof performance. It can reach UL-94 V-O level standard.

The invention relates to a prefabricated part of a composite abrasion-resistant part and a method for manufacturing the abrasion-resistant part with the same. The prefabricated part is formed by mixing metal powder with carbide ceramic particles or particles by crushing a hard alloy and sintering the mixture at a high temperature and can be made into special shapes of columns, strips, blocks, honeycombs, and the like. The method comprises the following steps of: regularly arranging prefabricated parts on the end surface of a cast form; casting liquid metal by adopting a common or negative pressure cast method; impregnating the liquid metal into the prefabricated parts to form an abrasion-resistant part of a composite material, wherein the surface layer of the abrasion-resistant part comprises a matrix metal and a composite material. The abrasion-resistant part of the composite material, which is made by using the method, ensures the wear-resistant performance of the abrasion-resistant part and has high anti-impact capability.

Optical-quality polarized parts and methods for manufacturing the optical parts are disclosed. The optical-quality polarized parts comprise a high impact, lightweight, high optical quality polyurethane construct and a polarizer bonded to the construct. The construct may be a lens substrate wherein the polarizer is integrally bonded at or near the front surface of the lens substrate. A sidefill gasket may be used to support and position the polarizer within a mold cavity for reproducibly forming the optical part. The polarizer may comprise a polyethylene terephthalate film or a laminated polyvinyl alcohol film or wafer. The polarized optical part has improved impact resistance over conventional thermoset resin parts, as well as better optical properties than similarly impact-resistant polycarbonate constructs.

A piezoelectric vibrator having excellent shock resistance and high reliability is offered. The centers of first and second piezoelectric vibrating plates are supported by pillars on a main surface of an enclosure and nearly or substantially parallel to the main surface of the enclosure. Spacers having a Young's modulus of less than 2 GPa are mounted on both end sides of the second piezoelectric vibrating plate to prevent contact between the vibrating plates, thus preventing damage. Other spacers are mounted on the main surface of the enclosure in positions corresponding to the first-mentioned spacers to prevent contact with the main surface of the enclosure, thus preventing damage to the second piezoelectric vibrating plate.

The invention relates to a high-strength aluminate silicate glass and a chemical toughening method thereof, and belongs to the silicate glass field. The glass comprises the following chemical components (weight percent): 55 to 65 weight percent of SiO2, 0.1 to 3 weight percent of B2O3, 6 to 24 weight percent of Al2O3, 3 to 9 weight percent of MgO plus CaO plus BaO plus SrO, 0 to 1 weight percent of ZrO2, 0 to 2 weight percent of ZnO, 0.1 to 0.5 weight percent of Cl2, 0.1 to 1.0 weight percent of Sb2O3, 0.1 to 0.5 weight percent of SO3 and 0.1 to 0.5 weight percent of F2, and belongs to a aluminate silicate glass system. The high-strength aluminate silicate glass is prepared through a known plate glass production method, and then is subjected to the strengthening treatment by adopting the chemical toughening method. The glass has high permeability of visible light, and relatively common soda lime glass, neutral medicine glass and alkali-free high-aluminum glass have good shock resistance property, high scratch resistance property and high durability. The high-strength aluminate silicate glass is applied to the screen surface protection of plasma display products and liquid crystal display products, the protection of touch screens, the screen protection of automated teller machines, and the screen protection of other electronic products (Mobile phones, PDAs and media machines, etc.), thereby effectively preventing the impact and the scratch damage to the glass surface of display products. The high-strength aluminate silicate glass contains no harmful elements.

This provides a plurality of novel features that can be applied variously to a reader. In one embodiment, the light pipe is constructed from durable polycarbonate for increased shock resistance and can define a rectangular cross section. The chamfered end of the light pipe is textured or frosted to further diffuse refracted light passing through the end so as to present a more even effect. The conical / tapered diffuser within the light pipe is illuminated by a reflector with a white textured surface that reflects a plurality of rearward-directed illumination sources back into the diffuser. The reflector can define a predetermined cross section that directs further light into the forwardmost, remote regions of the diffuser to generate a better spread of light and alleviate spotting effects. The textured surface on the chamfered light pipe end can be employed to better project indicator light. The illumination sources are arranged in a ring at the inner end of the pipe, and can be multi-colored sources that respond to the controller to project and appropriate color and / or blink in an appropriate pattern to indicate various conditions, such as read success or failure. The controller is adapted to provide indications between image acquisitions. The controller can operate individual portions of the ring so that only corresponding portions of the light pipe perimeter are illuminated in a particular color (quadrants, for example) at a given time. Different quadrants may be simultaneously illuminated in different colors in one example

The invention relates to the technical field of paper boxes, and provides a double-layered packaging paper box. The double-layered packaging paper box comprises box covers, cover strips, flaps, reinforcing plates and a box body outer layer, wherein the reinforcing plates are arranged in the box body outer layer; the cover strips are arranged on the left surface and the right surface of the upper part of the box body outer layer; the flaps are arranged on the front surfaces and the rear surfaces of the cover strips; the box covers are arranged on the front surface and the rear surface of the upper part of the box body outer layer; and each reinforcing plate comprises a reinforcing plate main body, reinforcing ribs and connecting ribs. By arrangement of the cover strips and the flaps, good paper box packaging operation can be realized favorably, the box packaging speed is increased, the production efficiency is improved, and huge economic benefits can be brought for users; and by arrangement of the reinforcing ribs, impact resistance and compression resistance of the paper box are enhanced favorably, the using effect of the paper box is improved, the impact resistance and the compression resistance of the paper box are high, huge economic benefits are brought for the users, and characteristics of impact resistance and extrusion resistance are realized.

The invention relates to compound epoxy flooring coating adopting the mixture of epoxide resin and modified resin as a base material and further comprising organic solvent, dispersant, wetting agent, antifoaming agent, flatting agent, scratch resistance agent, pigment and stuffing as well as reactive diluent selected according to requirements. When in use, the coating is mixed and solidified withthe components of firming agent, accelerant, etc. By regulating the content of the components, the compound epoxy flooring coating of the invention can be used for manufacturing a solvent or solvent-free autolevelling epoxy floor. The compound epoxy flooring coating of the invention has favorable over-all properties, and not only has the characteristics of high mechanical strength, favorable anti-corrosion property, high adhesive force and good wear resistance property of the epoxide resin but also has the characteristics of good weather resistance, high decorative property and hardness and shock resistance of the modified resin; and the preparation method thereof is simple and practicable, is low-cost, and is suitable for mass preparation.

A piezoelectric actuated suspension with passive damping is disclosed for precision positioning of hard disk drive while reducing undesired shock vibrations. Along the longitudinal axis of an etched suspension, two piezoelectric actuators dispose near the base plate to provide a push-pull motion. The actuators have two main portions. The first portion is piezoelectric elements to provide active positioning. The second portion is viscoelastic damping layers underneath the piezoelectric elements for passive damping. The complementary parts such as stiff edge elements and optional soft boundary covers are used to enhance the actuating abilities of the actuators and prevent any contaminants of the viscoelastic layers from going into the clean sealed chamber of the hard disk drive, respectively. The present invention further relates to a dual-stage servo system in a hard disk drive for fine positioning of the read / write head and better shock resistance via the piezoelectric actuated suspension with passive damping.

The invention relates to an expansion material for a cast-in-situ hollow floor member, which comprises 4 to 15 percent of sulphoaluminate cement or ferro-aluminate cement, 50 to 65 percent of Portland cement, 18 to 35 percent of fly ash, and 2 to 10 percent of modifying agent (weight percentage). The invention adopts the sulphoaluminate cement or the ferro-aluminate cement to be mixed with the Portland cement to ensure that the expansion material has good performances of light mass, high strength, corrosion resistance, thermal insulation and so on, and then is matched with other modifying agents to ensure that the expansion material can save the using amount of the cement and ensure that a floor system has the advantages of high strength, permeation resistance, freezing resistance, cracking resistance, friction resistance, ultraviolet irradiation resistance, tensile resistance, compression resistance, shock resistance, and good sound insulation effect when reducing the weight of the floor system.

To provide a thin film device which becomes possible to be formed in the portion which has been considered impossible to be provided with such device by the conventional technique, and to provide a semiconductor device which occupies small space and which has high shock resistance and flexibility, a device formation layer with a thickness of at most 50 mum which was peeled from a substrate by a transfer technique is transferred to another substrate, hence, a thin film device can be formed over various substrates. For instance, a semiconductor device can be formed so as to occupy small space by pasting a thin film device which is transferred to a flexible substrate onto a rear surface of a substrate of a panel, by pasting directly a thin film device onto a rear surface of a substrate of a panel, or by transferring a thin film device to an FPC which is pasted onto a substrate of a panel.

The application relates to a supporting structure and a display device. The supporting structure is arranged at one side of a flexible display panel, the flexible display panel comprises a bendable area, a bending axis corresponding to the bendable area extends on a first direction, wherein the supporting structure comprises a hollow-out area with a positive projection capable of completely covering the bendable area on the display panel, the hollow-out area comprises a first part formed with multiple first hollow-out holes, second parts located at two opposite sides of the first part on the first direction, wherein multiple second hollow-out holes are formed on the second parts; a specific value of the total area of multiple second hollow-out holes and the total area of the second parts is different from that of the total area of multiple first hollow-out holes and the first part, thereby guaranteeing the structure stability of the supporting structure and enhancing the shock resistance and bending resistance of the flexible display panel.

The invention discloses low-yield ratio and high-strength steel for bridges and a manufacturing method thereof. The steel comprises the following chemical components by weight percent : 0.06-0.10 percent of C, 0.20-0.45 percent of Si, 1.20-1.50 percent of Mn, no more than 0.010 percent of P, no more than 0.0020 percent of S, 0.30-.060 percent of Ni, 0.20-0.50 percent of Cu, 0.15-0.50 percent of Mo, 0.025-0.060 percent of Nb, no more than 0.035 percent of Ti, 0.020-0.040 percent of Alt, and Fe and unavoidable impurities in balancing amount. According to the invention, through smelting, refining, performing a reasonable thermo-mechanical control process (TMCP) and optimizing tempering heat treatment production, the tensile strength of the steel is 700-780 MPa, the yield strength is 530-600MPa, the extensibility is greater than or equal to 18 percent, the yield ratio is less than or equal to 0.80, and 40 below zero DEG C low-temperature longitudinal impact is greater than or equal to 100 J, so that the steel is good in obdurability matching and low in the yield ratio, is provided with excellent performance of shock prevention, and is stable in production process and strong in operability.

The invention relates to a fiber concrete material belonging to the field of building materials. The fiber concrete material mainly contains cement, active mineral blending materials, aggregates, fibers and water and is characterized in that the active mineral blending materials adopt coal ash, siliceous dust, pelletization blast furnace slag and metakaolin; the fibers adopt polyvinyl alcohol fibers, polyethylene fibers and aromatic polyamide fibers; the maximum particle size of the aggregates is smaller than or equal to 0.5mm, and the ratio of the weight of the aggregates to the total weightof the cement and the active mineral blending materials is 1-70 percent; and the blending volume of the fibers accounts for 1.5-2.5 percent of the total volume of fiber concrete. The fiber concrete material has the advantages of high tenacity, higher deformation capability, tensile strength and bending strength, limit tension strain of 1.8-7.5 percent, tensile strength of 4-10MPa and bending strength of 10-20MPa, can control the width of a crack lower than 0.1mm, effectively enhance the integrity and the shock resistance of a structure and ensure the permeability resistance and the durabilityof the structure.

The invention provides a preparation technology of phosphosilicate enamel, which comprises the raw materials based on weight percentage as follows: 15%-30% of P205, 20%-35% of SiO2, 8%-15% of B2O3, 5%-12% of Al2O3, 1%-4% of TiO2, 1%-5% of ZrO2, 0-1% of CoO, 0-2% of NiO, 5%-10% of Na2O, 2%-6% of K2O, 0-4% of 'ZnO, 2%-6% of CaO and 1%-5% of MaO. The preparation technology comprises the steps of dosing, founding under a high temperature, preparing enamel dried powder or glazeslip, coating the enamel, and sintering. After the phosphosilicate enamel which is prepared by the method is used, the abrasion resistance and the shock resistance of the enamel are effectively improved, and the enamel with better performances is developed for the industrial application of the enamel which is taken as an abrasion resistant structure, a building decoration material, and the like.

A continuous fiber reinforce polyurethane foaming material and a relative production method relate to a polyurethane foaming material, wherein the continuous fiber reinforce polyurethane foaming material has strong rigidity, strength and shock resistance to produce foaming polyurethane material with reinforced glass fiber, which eliminates breaking and premixing with any component of polyurethane, is directly mixed and immersed with polyurethane mixture in an immerser and is foamed and shaped continuously, and contains A, B and C components. A comprises polyatomic alcohol, foaming agent, catalyst, foaming stabilizer, chain extender and adjuvant, B is polyisocyanate, C is fiber material. The preparation method comprises mixing the materials of A in A pot, the materials of B in B pot, immersing fiber via an immerser with the mixture discharged from a high-speed pouring head, feeding immersed material into a continuous foaming mold to be foamed and solidified, cooling, removing mould, taking off and cutting to obtain final product.

The invention belongs to the field of modified polypropylene composite materials and relates to a low-odor and low-diffusion modified polypropylene composite material suitable for manufacturing interior decorative parts of automobiles. The composite material comprises the following components in part by weight: 60 to 90 parts of polypropylene, 0 to 40 parts of mineral filler, 1 to 5 parts of odor adsorbent and 0.1 to 1 part of assistant, wherein the odor adsorbent is a mixture of three types of clay, bentonite, porous silicon dioxide, activated aluminum oxide or molecular sieve. The prepared modified polypropylene composite material has the characteristics of high surface glossiness, high shock resistance and intensity, melt flowing property and mechanical property; due to the adoption of various gas adsorbents, the product has low odor diffusion property and a total carbon value of between 13.7 and 24.5 mu gC / g; simultaneously, needed raw materials have wide sources and are readily available.