38results about How to "Not easy to collapse and deform" patented technology

The invention discloses a pretreatment construction device for traffic road maintenance. The pretreatment construction device comprises a base, a heating box, rollers, a stirring motor and a charge hole, wherein an unloading cavity of a horizontal cylindrical structure is arranged in a separating base; a horizontal sealing column is coaxially mounted in the unloading cavity; a plurality of storageslots are uniformly formed in the side wall of the sealing column; the lower end of a lifting box is fixedly equipped with a horizontal pressure plate; a heating device for internally heating is mounted in the lifting box; a fan is further fixedly mounted on a bracket of the base; and the fan is communicated with a clearing box on the base through a pipeline. According to the pretreatment construction device disclosed by the invention, the unloading cavity and the sealing column matched with the unloading cavity are arranged, so that an asphalt raw material uniformly flows out from the heating box, filling amount is easily controlled, and material waste is reduced; impurities such as dust inside are sucked before the material is complemented, so that impurities inside are quickly clearedand reduced, and therefore, the material is extruded to be more compactly, and a repaired road is guaranteed to be not liable to collapse and deform.

The invention relates to a PPR insulating composite tube for home decoration and a preparation method of the composite tube. The composite tube is of a three-layer composite structure, the inner layer of a PPR or PPR aluminum-plastic composite tube is coated with an expanded polyethylene insulating layer through equipment, the expanded polyethylene insulating intermediate layer is coated with a weather-resistant and scratch-resistant outer protection layer through an extruding machine, closed-cell expanded materials are adopted by the expanded polyethylene insulating layer, the cell sizes range from 0.2 mm to 0.5 mm, and the weather-resistant and scratch-resistant layer is prepared from 60%-90% of LLDPE, 5%-15% of HDPE, 4%-20% of EVOH, 0.5%-2% of silane-modified nano-titanium dioxide and 0.5%-2% of compound additives. The expanded polyethylene insulating layer is obtained through a one-step method. The PPR insulating composite tube has the insulating and energy saving properties and the excellent weather-resistant and scratch-resistant properties, a synchronous coating molding process is adopted in the production process, the production efficiency is improved, the manufacturing cost is reduced, and the PPR insulating composite tube has a good market application prospect.

The invention discloses modified alkaline phenolic resin self-hardening sand for high-precision pump valve castings. A modified phenolic resin adhesive adopted by the resin self-hardening sand has the advantages of being low in viscosity, high in bonding strength, good in plasticity, low in brittleness, lower in content of free phenol and free formaldehyde, fewer in usage amount, low in hardening speed and the like, and therefore the using performance and the reusing performance of the casting sand can be effectively improved; sepiolite fabric porous polypropylene fibers mixed in the sand have high thermal stability and are obvious in toughening effect and reinforcing effect, a complex and uniform meshed structure is formed by the fibers in a sand mold, so that the plasticity of the casting sand is improved, and compactness and air permeability of the casting sand are improved; moreover, the sand can be scattered and stripped more easily in the casting demolding process, so that work efficiency is improved; the modified alkaline phenolic resin self-hardening sand is compact and air-permeable in molding, resistant to molten metal scouring and erosion and small in thermal expansion coefficient, and the sand mold is not prone to deformation or scattering in the pouring process and can be used for pouring of the high-precision pump valve castings.

The invention belongs to the technical field of medical treatment, and particularly relates to a bone grafting composite material for alveolar bone augmentation. The bone grafting composite material for alveolar bone augmentation is characterized by being divided into three layers in sequence from interior to exterior, which are an autogenous bone, a support material and a CPC/PLGA compound; the volume ratio of the autogenous bone to the support material is 1:1. The composite material combines application of the autogenous bone, the inorganic element support material, the CPC/PLGA compound andautoblood, on the basis of characteristics of autogenous bone generation and bone induction and the advantages of plasticity, biodegradability and self-solidification-strength of the CPC/PLGA compound, autoblood provides abundant growth factors for bone repair, the bone grafting composite material is ideal, bone regeneration is guided, bone formation is promoted, and the alveolar bone amount is increased.

The present invention discloses a degradable bone regeneration guidance biomembrane, a preparation method and an application thereof. According to the present invention, propylene carbonate and poly(butylene succinate) are weighed according to a certain ratio as raw materials, and are dissolved into an organic solvent to prepare a turbid solution, and a salting out method is adopted to synthesize a biomembrane; the biomembrane is mainly applicable for stomatological implant dental department, wherein a bone regeneration space can be long-lastingly maintained and bone regeneration can be promoted in the application of the stomatological department bone defect case; and compared with the biomembrane and the preparation method thereof in the prior art, the biomembrane and the preparation method thereof of the present invention have the following characteristics that: the double layer-like structure similar to the human periosteum can be synthesized through the salting out method, the biomembrane has characteristics of good physical and chemical properties, in vitro bone regeneration guidance bioactivity, low price and the like, a plurality of shortcomings of the existing clinically used biomembrane can be overcome so as to provide an effective biomembrane for stomatological implant dental department clinic and promote bon regeneration, wherein the shortcomings comprise thick biomembrane, large tissue tension in the surgery region, easy wound dehiscence and the like.

The invention discloses an online pouring molding method for a nozzle of a heating furnace burner. The method comprises the steps that nozzle molds on a burner brick are firstly manufactured; the nozzle molds are arranged at the burner position on a furnace wall during maintenance, corundum mullite castables are poured to a heat storage chamber burner nozzle and the peripheral damaged furnace wall, closing treatment is carried out on the top end closing position and the tail closing position in a high-alumina brick blocking manner, and a separation plate in a heat storage box is repaired through formwork coating materials; and finally, after slurry to be poured is solidified and meets the standard strength requirement, the nozzle molds on the burner brick are demounted, and the nozzle of the burner is molded. Under the condition that the heating furnace burner is damaged, based on the requirement that the nozzle of the burner brick is not changed, the molds are firstly manufactured according to the size of the nozzle of the burner, and then refractory matter is poured to the nozzle to repair the nozzle. The repaired burner is not prone to deforming or collapsing, the service life of the burner on a heating furnace is effectively prolonged, then, construction time is shortened, and the maintenance workload is reduced.

The present invention relates to the field of automatic processing and particularly relates to a device used for automatic peeling of potatoes. A material loading mechanism is arranged on a side of atank body; an output end of the material loading mechanism passes through the tank body and is connected with an input end of a peeling device; a waste cleaning device is arranged under the tank body;a filtering device is arranged under the waste cleaning device; a circulation device is arranged above the tank body and connected with the tank body and the filtering device; a material dischargingmechanism is arranged at the side of the tank body; besides, an input end of the material discharging mechanism passes through the tank body and is connected with an output end of a peeling device; the peeling device comprises a water pipe and spiral blades arranged around the water pipe; the water pipe and the spiral blades are hollow; besides, the water pipe communicates with the inside spaces of the spiral blades; and the lower ends of the spiral blades are provided with a plurality of spraying holes. The peeling machine can automatically conduct material feeding; automatic material discharging is conducted after peeling by high-pressure water stream; the high-pressure water stream used for the peeling of the potatoes is filtered; the filtered high-pressure water stream is then reused by the circulation device; and potato peels produced after the peeling can be automatically cleaned to a waste basket.

The invention relates to a vacuum magnetic levitation tunnel which comprises a tunnel shell, supports, a roadbed and magnetic levitation blocks for being fixed on the tunnel shell to be suspended and driving a levitation vehicle. The vacuum magnetic levitation tunnel is characterized in that the longitudinal profile of the tunnel shell is a corrugated pipe hook face, and a transverse profile is in a circle or oval shape; one ends of the magnetic levitation blocks are fixed at the positions of the inner side of the bottom of the tunnel shell at equal longitudinally-striding wave pitch number interval, and the other ends of the magnetic levitation blocks are used for sliding supporting; the supports are installed at the positions, at the wave crests equal distance away from the longitudinally-fixing positions of the magnetic levitation blocks, on the outer side of the bottom of the tunnel shell, and the supports are fixed on the roadbed. The buttock line of the corrugated pipe hook face of the tunnel shell is a sine curve and the like. Obviously, fewer materials can be used in the vacuum magnetic levitation tunnel, the longitudinal rigidity of the vacuum magnetic levitation tunnel is reduced to convert the longitudinal internal stress generated by temperature changes into longitudinal elastic deformation, meanwhile, the radial rigidity of the vacuum magnetic levitation tunnel is increased to enable deformation to be not prone to being caused when vacuum and track loads are borne, the temperature change stress is averagely divided by the supports, the uniformity influences of the temperature change stress on magnetic buoyancy and magnetic driving force are reduced, and the components are widely applied to the vacuum magnetic levitation tunnel.

The invention provides a phakic intraocular lens which can maintain stable arch height in eyes. The phakic intraocular lens of the present invention has the following structure. The center thickness of the optical part of the phakic intraocular lens is 0.05-0.25 mm, preferably 0.05-0.20 mm, and more preferably, 0.08-0.18 mm; the thickness of the support part edge is 0.05-0.25 mm, preferably 0.05-0.20 mm, and more preferably, 0.08-0.18 mm; the thickness of the thickest part is 0.1-0.8 mm, preferably 0.15-0.75 mm, and more preferably, 0.15-0.70 mm. By adopting the above structure, as explained in the following embodiments, the phakic intraocular lens of the present invention can maintain stable arch height through the above special size design. The intraocular lens can be kept the arch height, so as not to collapse deformation, and not to cause damage to intraocular tissue due to excessive hardness.

The invention discloses a blow-up type uniform temperature board and a battery pack, wherein the blow-up type uniform temperature board comprises a horizontally arranged board body, and a hollow embossment formed at an upper surface of the board body, wherein the inside of the hollow embossment is a blow-up flow channel; the upper surface of the board body is also provided with a load-bearing embossment which is formed through punching the board body and is higher than the hollow embossment. The blow-up type uniform temperature board provided by the invention has very high load-bearing anti-deformation capability.

The invention relates to the field of building construction equipment, and particularly relates to a reference strip generation device and a leveling robot. The reference strip generation device comprises a vehicle body, and walking wheels are arranged at the bottom of the vehicle body, wherein a material preparation device is installed on the vehicle body and used for applying cement slurry to the ground; and a reference generation mold positioned behind the material preparation device is further installed on the vehicle body, and when the reference strip generation device moves forwards, thereference generation mold can level and shape the cement slurry output by the material preparation device so as to form a reference strip on the ground. According to the reference strip generation device, the cement slurry is output to the ground through the material preparation device, along with advancing of the vehicle body, the reference generation mold is utilized for leveling and shaping the cement slurry into a strip shape, the reference strip generation speed is high, after the reference strip is hardened, a scraper abuts against the reference strip and moves along the reference strip, and then mortar on the ground can be leveled; and in the leveling process, the adjacent ground does not need to be repeatedly compared or the reference surface does not need to be repeatedly compared, the leveling speed is high, and the efficiency is high.

The invention discloses a filter element and a manufacturing method thereof. The filter element comprising a filter element body, wherein the filter element body comprises a framework fiber layer; a rough filtration fiber layer is arranged on the inner side of the framework fiber layer; an adsorption fiber layer is arranged on the inner side of the rough filtration fiber layer; a refined filtration fiber layer is arranged on the inner side of the adsorption fiber layer; a first fixing plate and a second fixing plate are arranged on the two sides of the two ends of the filter element body correspondingly. Locking plates are fixedly connected to the two ends of the first fixing plate and the two ends of the second fixing plate correspondingly. A locking rod is inserted between the two locking plates; a connecting rod is fixedly connected to the outer side walls of the first fixing plate and the second fixing plate; a threaded rod is inserted into the connecting rod in threaded mode, oneend of the threaded rod is rotationally connected with a positioning plate, and one side of the positioning plate abuts against the outer wall of the filter element body; collapse and deformation arenot likely to happen, the filtering precision is high, activated carbon fibers can effectively kill bacteria, the purifying effect is improved, the filter element is stable in the using process, and the filtering effect is improved.

The invention discloses a pottery clay particle cushion capable of eliminating fatigue, which comprises a cushion body, an upper cushion surface and a lower cushion surface, wherein massage pottery clay particles are fixedly connected to the outer surface of the upper cushion surface; an upper elastic buffer layer is fixedly connected below the upper cushion surface; an elastic supporting pad is fixedly connected to the lower portion of the upper elastic buffer layer, the elastic supporting pad is a honeycomb hole-shaped silica gel pad, a balance vibration plate is fixedly connected to the lower portion of the elastic supporting pad, a motor vibration plate is fixedly connected to the lower portion of the balance vibration plate, and the lower portion of the motor vibration plate is fixedly connected with the lower cushion surface.The seat cushion can be conveniently used, the relaxing effect of the seat cushion is remarkably enhanced, the body is further relaxed through the vibrationfunction, fatigue is eliminated, and the practicability is high.