35results about How to "Guaranteed bending resistance" patented technology

The invention provides a novel FPC composite electromagnetic shielding film and a preparation method thereof. The method comprises the following steps: 1) preparing coating materials of a first insulation paint layer, a second insulation paint layer, an electromagnetic wave reflection coating layer and an electromagnetic wave absorbing coating layer; and 2) carrying out coating, wherein the firstinsulation paint layer is a wear-resisting coating, wear resistance being larger than 1000 times; the second insulation paint layer is a high-filling and high-toughness coating, bending resistance times being larger than 80000; the coating material of the electromagnetic wave reflection coating layer comprises reflection layer matrix resin and metal fillers, the metal fillers being flake silver-clad glass or flake silver-clad copper powders or leaf-like silver-clad copper powders or dendritic silver-clad copper powders; the ratio of the matrix resin and the metal fillers of the electromagneticwave reflection coating layer is 1:1.5-1:5; the electromagnetic wave absorbing coating layer comprises absorbing layer matrix resin and wave absorbing materials; the carrier film is a matte release film. The novel FPC composite electromagnetic shielding film has better flexibility, bending resistance, product flatness and shielding effect.

The invention discloses a bearing vehicle body, comprising a vehicle body rear floor and a reinforced beam structure which is fixed on the lower surface of the rear floor; wherein, the reinforced beam structure comprises a left longitudinal beam, a right longitudinal beam, a front transverse beam and an upper transverse beam; the left longitudinal beam and the right longitudinal beam are longitudinally extended along the left frame and the right frame of the panel of the vehicle body rear floor; the front transverse beam is connected with the left longitudinal beam and the right longitudinal beam at the front ends of the left longitudinal beam and the right longitudinal beam; the upper transverse beam is connected with the left longitudinal beam and the right longitudinal beam at the middle part of the left longitudinal beam and the right longitudinal beam. In the bearing vehicle body of the invention, the two longitudinal beams and the two transverse beams form a frame-typed reinforced beam structure which is fixedly connected with the vehicle body rear floor, thus effectively improving the collision-bearing capability of the side and rear of the bearing vehicle body.

The invention relates to a moving lifting device which comprises a moving mechanism and a lifting mechanism. The moving mechanism comprises a supporting plate, connecting parts and supporting claws. Multiple first motors connected with the connecting parts are arranged on the supporting plate, and rotating shafts of the first motors are perpendicular to the supporting plate. The connecting parts are connected with second motors, rotating shafts of the second motors are perpendicular to the rotating shafts of the first motors, third motors connected with the supporting claws are fixed on the second motors, and rotating shafts of the third motors is parallel to the rotating shafts of the second motors. The lifting mechanism comprises an underbed, two fork-shaped articulation pieces, a cylinder and a foot rack. The underbed is arranged on the supporting plate, the two ends of each fork-shaped articulation piece are connected with the underbed in a hinged mode, the other two ends of each fork-shaped articulation piece are connected with the foot rack in a slidable mode, and the cylinder drives the two fork-shaped articulation pieces to drive the foot rack to be lifted. The moving mechanism drives the supporting claws to move through motors, and drives the two fork-shaped articulation pieces to drive the foot rack to rise and fall through the cylinder. The moving lifting device is convenient to move, simple in structure, and capable of automatically adapting and adjusting balance.

The invention discloses an anti-bending test device. In the test device, a positioning groove is used for placing to-be-tested product, and multiple position grooves can be placed with multiple products; the bent part of the product pin are arranged upwards, product on the position groove is pushed in the test position via a second air cylinder to ensure the bent part of each product pin to align with a press block, and multiple press blocks simultaneously press the bent parts of multiple product pins (with set appropriate press force and press times) via a first air cylinder; and after completing press test, the product is separated from the test position via the second air cylinder to take the product out, and bending degree of the product pin bent part is observed to obtain whether the product passes through the anti-bending test or not. The product passing through the anti-bending test has bending degree of the bent part almost consistent with that before test, while the product which does not pass through the anti-bending test, has the bent part pressed to shift downwards via the press force of the press block, so that rejection product can be screened out via human eye observation, thereby ensuring anti-bending capacity of the product. The automatic anti-bending test device saves labor and time, and improves production efficiency.

The invention discloses an ultra-large space GRG installation structure. The ultra-large space GRG installation structure comprises a plurality of pre-embedded plates, a connection piece and an auxiliary steel frame, the pre-embedded plates are perpendicularly arranged on the back surface of each glass fiber gypsum plate in a protruding mode, and a main plane of each pre-embedded plate is parallel to a straight line in the vertical direction; the connection piece comprises bolts, flangings perpendicularly turned up facing the back surface are arranged between every two adjacent glass fiber gypsum plates, and the flangings of very two adjacent glass fiber gypsum plates are assembled and connected through the bolts; the auxiliary steel frame comprises a first square tube and a second square tube which are connected perpendicularly, the cross sectional area of the first square tube is larger than the cross sectional area of the second square tube, the first square tube extends in the vertical direction, and the second square tube extends in the horizontal direction; and the main planes of the pre-embedded plates are welded and fixed to the side surfaces of the second square tube. By adopting the ultra-large space GRG installation structure, larger vertical supporting force can be provided, and the ultra-large space GRG installation structure is suitable for a construction scheme of the glass fiber gypsum plates with larger area and large weight.

The invention relates to thermal insulation mortar prepared from waste tiles and a preparation method of the thermal insulation mortar, which belong to the field of building materials. The thermal insulation mortar is prepared from, by weight, 400-500 parts of cementing materials, 100-280 parts of quartz sand, 200-400 parts of modified waste tile particles, 7-10 parts of cellulose, 2-5 parts of water reducing agents and 2-4 parts of tackifiers; and the particle size of the modified waste tiles is 0.5-2 mm, and the accumulation area is 70-90 kg/m<3>. Vitrified waste tile aggregate and quartz sand are taken as aggregate, and Portland cement or aluminate cement is taken as a cementing material, so that resource utilization of waste tiles can be realized, and the problems of environmental pollution, resource and energy consumption and the like caused by the waste tiles can be reduced to the greatest extent; waste tiles are crushed and processed to prepare waste tile particles, through acidification, vitrification and modification, the specific surface area and porosity of the waste tile particles are increased, and the water absorption rate and the heat conductivity coefficient of the waste tile particles are reduced, so that the heat conductivity of the waste tile particles is reduced, and the heat preservation performance of the mortar is effectively improved.

The present invention relates to a wind-driven generator, in particular to a low-speed straight wind-driven generator principal axis, and provides a novel low-speed straight wind-driven generator principal axis with a principal-axis structure and the main body composed of a grid cylinder, including a steel plate and an angle plate. The principal axis is a hollow cylinder and the cross section is circular; the cylindrical part of the cylinder is composed of honeycomb hollow cylinders arranged equidirectionally, thus reducing the deadweight of the principal axis, shortening the production cycle, reliably ensuring the bending and twisting resistance of the axis and decreasing the bearing capacity of the tower without affecting the bearing capacity, mechanical intensity and reliability; the material for producing the principal axis is reduced and no special material is needed, thus reducing the production cost, accelerating the production and shortening the production cycle, so the materials can meet the operational requirement of the straight wind-driven generator without undergoing the forging process; in addition, the grid cylindrical hollow structure is conducive to air radiation, which is economical and reliable.

The invention provides a steel and wood combined box girder which comprises a CLT bridge deck slab, a steel and wood combined box girder block, steel webs, CLT edge webs, screws, H-shaped steel, flange plates and bolts. Bolt holes are formed in the CLT bridge deck slab, the H-shaped steel and the flange plates, the CLT bridge deck slab and the flange plates are in lap joint with the internal portions of H-shaped steel grooves and are anchored through the bolts; the CLT bridge deck slab and the CLT edge webs are connected through the screws, the CLT edge webs and the steel and wood combined boxgirder block are bonded through E1-level phenolic glue, the lower portion of the CLT bridge deck slab and the upper portion of the steel and wood combined box girder block are bonded through the E1-level phenolic glue, and the steel webs and the steel and wood combined box girder block are connected together in a welded mode; and the steel and wood combined box girder block is composed of multiple specially-shaped steel plates and thin, long and narrow beams, and the two ends of each specially-shaped steel plate are bonded to the edges of the up-down-staggered thin, long and narrow beams through the E1-level phenolic glue. The single-box multi-room space box girder is composed of the CLT bridge deck slab, the steel and wood combined box girder block, the steel webs and the CLT edge webs,the advantages of steel and wood combination are fully used, and the box girder is good in flexural performance and torsional performance and suitable for large-span light traffic bridges for pedestrians, motorcycles and the like.

The invention discloses an environment-friendly and energy-saving plastic shell cement quadrel, which comprises plastic shells, the plastic shells are filled up with cement, the plastic shells are seamlessly connected with one another, reinforcing rib plates are arranged in the plastic shell, the reinforcing rib plate is arranged in the form of a T, eight reinforcing rib plates are arranged, and are evenly distributed on the four sides of the plastic shell, the surface of the plastic shell is provided with an anti-slip pattern, the anti-slip pattern is composed of a plurality of small rectangles, more than one drain hole is arranged, and the drain holes have the same size, and are evenly distributed on the plastic shell. The appearance of the environment-friendly and energy-saving plastic shell cement quadrel does not have apparent cracks, the number of air holes is less as well, and the environment-friendly and energy-saving plastic shell cement quadrel has the advantages of high toughness and strength, good surface smoothness and long service life.

The invention discloses a high-strength box-type combination column and a preparation method thereof. The high-strength box type combination column is characterized in that the high-strength box-type combination column comprises two C-type steel plates and four column plates made of bamboo/wood, the two C-type steel plates define a box-type framework, the four column plates are respectively pasted and fixed on four outer surfaces of the box-type framework, a plurality of transverse partition plates distributed at intervals in the length direction are arranged in the box-type framework, a connecting screw rod penetrates through a first connecting hole, a second connecting hole and a third connecting hole, then the two ends of the connecting screw rod are fixed through cushion blocks and nuts, and polygonal holes are formed in the cushion blocks. The high-strength box-type combination column has the advantages that the overall weight and cost are reduced, and meanwhile the bending resistance and the shearing resistance of the box-type column are guaranteed; and in addition, due to the fact that the transverse partition plates are fixedly connected with the box-type framework through the connecting screw rod, later replacement and maintenance of the box-type combination column are facilitated, when the box-type combination column is damaged due to stress, the box-type combination column can be conveniently disassembled only by heating to melt epoxy resin glue, and repeated use can be achieved by replacing the damaged part of the box-type combination column.

The invention relates to the technical field of hollow brick manufacturing, and discloses an intelligent hollow brick green brick forming machine and a forming process thereof.The intelligent hollow brick green brick forming machine comprises a mud extruding barrel, a heating layer is arranged in the mud extruding barrel in a sleeved mode, a feeding port is formed in the top face of the mud extruding barrel, a pressure release valve is further fixedly arranged on the top face of the mud extruding barrel, and a shaping channel is arranged at one end of the mud extruding barrel in a sleeved mode; the molding channel is sleeved with a heat preservation sleeve, a support is arranged on the outer side of one end of the molding channel, the support is wrapped with heat insulation cotton, a mold is arranged at the top end of the support, a turnover cleaning mechanism and a molding mechanism are arranged above the mold, an auger is arranged in the mud extruding barrel, and a plurality of brushes are fixedly arranged on the edge of the auger. According to the device, self-cleaning can be completed through the cleaning mechanism and the brush, green brick forming is prevented from being affected, the original proportion of pug can be guaranteed, components in green bricks are prevented from being damaged, and the strength of hollow bricks is guaranteed.

The invention relates to fireproof mortar prepared from waste bricks and tiles and a preparation method of the fireproof mortar, and belongs to the field of building materials, the fireproof mortar comprises the following components in parts by weight: 400-500 parts of cementing material, 100-280 parts of vermiculite aggregate, 200-400 parts of vitrified waste brick and tile aggregate, 7-10 parts of cellulose, 2-5 parts of water reducing agent and 2-4 parts of tackifier; the granularity of the vitrified waste brick and tile aggregate is 0.5-1.5 mm, and the stacking area is 70-80 kg/m3; vitrified waste brick and tile aggregate and vermiculite aggregate are used as mortar aggregate, Portland cement or aluminate cement is used as a cementing material, resource utilization of the waste bricks and tiles can be achieved, and the problems of environmental pollution, resource and energy consumption and the like caused by the waste bricks and tiles are relieved to the maximum extent; and waste bricks and tiles are crushed and processed to prepare waste brick and tile particles, and the specific surface area and porosity of the waste brick and tile particles are increased through hydrochloric acid acidification, so that the thermal conductivity of the waste brick and tile particles is reduced, and the fireproof performance of mortar is effectively improved.

The invention discloses an engine hood. The engine hood comprises a hood body and is characterized in that the hood body comprises an upper fixing part and a lower fixing part, and a communicating part is arranged between the upper fixing part and the lower fixing part. According to the engine hood, the hood body is formed by combining the upper fixing part and the lower fixing part, and the communicating part is arranged between an upper covering plate and a lower covering plate so that a pipeline connected with an engine can pass through conveniently. The communicating part is arranged between the upper fixing part and the lower fixing part, it is guaranteed that the hard structures and the turning points of the upper fixing part and the lower fixing part are not damaged, the bending resistance of the hood body is guaranteed, and the service life of the hood body is prolonged. The engine hood has the advantages of being compact in structure, long in service life, low in cost and the like.