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146results about How to "Smooth and beautiful surface" patented technology

Curvature radius adjustable prefabricated box-beam mold and construction method thereof

The invention discloses a prefabricated box girder mold with adjustable curvature radius and an installation and construction method of the mold. The invention adopts the concept of replacing the curved line with a folded line of a fixed length, and accurately sets out the bottom mold, so that the side mold is designed by It is composed of several fixed-length fixed sections. An elastic change section is set between the fixed-length fixed sections, and an adjustment link rod is set between the fixed-length fixed sections to realize the function of adjusting the curvature of the fixed-length broken line. At the same time, the adjustment insert section is embedded in the side mold The adjustment of inner and outer arc length changes can not only meet the needs of fixed section and variable curvature prefabricated building components, but also meet the production or construction needs of continuous variable section and variable curvature prefabricated building components. The prefabricated box girder mold with adjustable curvature radius of the present invention can not only meet the overall needs and accuracy requirements of the design curvature change, but also has a smooth and beautiful surface, with as few or no traces of template joints as possible.
Owner:SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD

Elastoplastic device for expansion joints in buildings and road engineering

The invention discloses an elastoplastic device for expansion joints in buildings and road engineering. The elastoplastic device comprises a cast-in-place concrete layer and a bituminous concrete pavement layer arranged on the upper end of the cast-in-place concrete layer, wherein the center of the cast-in-place concrete layer is provided with an expansion joint filled with sponges or foams; the center of the bituminous concrete pavement layer is provided with a notch which is filled with expansion elastomers and broken stones and is internally provided with a cover plate; lower expansion bolts are symmetrically arranged around the upper part of the cast-in-place concrete layer; lateral expansion bolts are symmetrically arranged around the inner side of the bituminous concrete pavement layer; and steel bars are arranged between the end parts of the lateral expansion bolts and the lower expansion bolts. The device disclosed by the invention has the advantages of simple structure and reasonable design, and is convenient and rapid in construction; the performance requirements of the expansion joints can be met, special expansion members are not needed to be arranged, and the problem of short service life of other expansion devices under small stroke can be effectively solved; and the device disclosed by the invention has the characteristics of good elasticity and neat and beautiful appearance, and can bear vehicle load.
Owner:西安达盛隔震技术有限公司

Friction stir welding device with adjustable stirring pin length and welding method

ActiveCN107470773AOvercome the problem of limited welding depth and unsatisfactory welding effectSmooth and beautiful surfaceNon-electric welding apparatusHydraulic pumpEngineering
The invention provides a friction stir welding device with the adjustable stirring pin length and a two-sided welding method. The friction stir welding device with the adjustable stirring pin length comprises a friction stir welding device main body, a clamping part, a micro hydraulic oil cylinder, a driving motor, a temperature sensor, an ultrasonic probe, an ultrasonic detector, a temperature display, a hydraulic controller, a hydraulic pump and an operation controller. The friction stir welding device main body is mounted below the clamping part and is hollow. A stirring pin is arranged in the friction stir welding device main body. A stirring head is arranged on the lower portion of the stirring pin. A rotary joint is connected with the upper portion of the stirring pin. The micro hydraulic oil cylinder is mounted between the stirring pin and the rotary joint. The friction stir welding device can automatically adapt to various welding depths and welding demands of variable cross-section components, welded surfaces are smoother and more attractive, the welding strength is higher, the welding effect is better, and the friction stir welding device is high in automation degree and easy and convenient to operate and control.
Owner:BEIJING FSW TECH

Road and bridge expansion joint structure

The invention discloses a road and bridge expansion joint structure. The road and bridge expansion joint structure comprises an inverted-T-shaped plate component with the bridge longitudinal cross section being in an inverted T shape. Two wing plates of the inverted-T-shaped plate component transversely extend into a base body of a bridge pavement layer. A web extends upwards to be flush with the upper surface of the bridge pavement layer. Each wing plate is sequentially provided with a cushion layer and a protection wear-resisting layer from bottom to top in a laying mode and is longitudinally connected with the bridge pavement layer. An expansion joint notch and the two sides of the expansion joint notch are filled with elastic layers to be sealed. The road and bridge expansion joint structure has the advantages of being convenient to construct, reasonable in design, high in efficiency, good in vehicle load bearing performance, good in elasticity, smooth and attractive in surface, and good in waterproofing, anti-aging, anti-fatigue, shock resistance and corrosion resistance. In accordance with the characteristics of an expansion joint, three materials of different components and matching ratios are adopted, layered pavement is conducted according to different stress conditions and states, good durability is achieved, construction is rapid and simple, and the expansion joint performance requirement can be well met.
Owner:孟献春

Sodium-potassium citrate chewing tablet and preparation method thereof

The invention provide a sodium-potassium citrate chewing tablet, of which the prescription is composed of the following components by mass percent: 33.0-33.1% of potassium citrate, 27.8-27.9% of sodium citrate, 28-32% of filling agent, 0.05-0.3% of adhesive, 1-1.5% of lubricant, 3-5% of flavoring agent, 0.1-0.3% of aromatizer and 3-4% of moistureproof film coating agent, wherein the filling agentis mannitol or a mixture of mannitol and sorbitol or xylitol; the adhesive is hydroxypropyl methylcellulose or polyvidone K30; the lubricant is magnesium stearate or a mixture of magnesium stearate and micropowder silica gel; the flavoring agent is citric acid or a mixture of citric acid and sodium saccharin, aspartame or steviosin; and the aromatizer is pharmaceutically acceptable essence. The invention also provides a preparation method of the sodium-potassium citrate chewing tablet. The preparation method is simple and convenient to operate, low in cost and suitable for industrial production. The obtained tablet has stable and controllable quality, fresh and cool mouthfeel, sourness and sweetness in taste, mint fragrance or fruit fragrance, smooth and beautiful surface, uniform color, moderate hardness and rapid dissolution, and has good application prospects in treatment of gout and hyperuricemia as well as improvement of children and adult in vivo acidosis symptom and other aspects.
Owner:SOUTHWEST UNIV

Automatic seamless motor housing molding machine

The invention relates to an automatic seamless motor housing molding machine, and relates to a motor manufacturing technology. The machine comprises a frame and a workbench arranged on the frame. Supporting rods extend upwards from two sides of the frame. A cross beam is connected on the upper ends of the supporting rods. Slide rod assemblies are arranged on two sides of the cross beam. An inner shape sand box is arranged below the cross beam. A rectangular connection piece is fixedly connected on the periphery of the inner shape sand box. Gas cylinders are connected on two sides of the rectangular connection piece. The ends of piston rods on the front ends of the gas cylinders are fixed on the rectangular connection piece. The back ends of the gas cylinders are slidably connected on the slide rod assemblies through sliding parts. An inner shape molding mold elevation groove is arranged on one side of the workbench, and an outer shape molding mold accommodation recess is arranged on the other side of the workbench. An outer shape mold is arranged on the outer shape molding mold accommodation recess. An elevation gas cylinder is connected to an outer-upper pressing plate on the outer shape mold. A sand feeding pipe is connected to the outer shape mold. An elevation mechanism is arranged on the bottom of the inner shape molding mold elevation groove. An inner shape molding mold is fixed on the elevation mechanism. An ejection-pressing device is arranged above the inner shape molding mold, and is connected to an ejection-pressing gas cylinder which is arranged on the cross beam. With the machine provided by the invention, a manufactured product has no crack caused by mold seam of a splicing-type mold. The surface of the product is more smooth and beautiful.
Owner:狄海串 +1

Normal temperature manufacturing process for MMA high-intensity artificial stone special-shaped pot/trough

The present invention discloses a technique for manufacturing MMA high-strength artificial stone special-shaped basin/groove at normal temperature. The methyl methacrylate resin, arenaceous quartz, accelerating agent and solidifying agent are executed with mixing, injection molding and solidifying forming. The mixing is vacuum mixing which is executed in a mixer with a vacuum degree of 8MPa. The vibration is executed while the squeezing is executed for pouring into the mold for completing injection molding. The mould is closed to a static solidifying exothermic peak, and mould removing and baking are executed. The invention aims at the disadvantages of high cost and hard mould removing of prior art. The invention provides a technique for manufacturing MMA high-strength artificial stone special-shaped basin/groove at normal temperature. The cost is reduced on one hand. On the other hand the mechanical property of product is increased. The technique of the invention has the following remarkable effects: adoption of normal temperature pouring for replacing the previous high temperature pouring, low energy consumption and convenient construction; and 2. adoption of vacuum mixing, excellent texture of finished product, and beautiful external appearance.
Owner:SHANGHAI MOERSHU CORP DEVING

Method for producing and assembling micro-channel heat exchanger

The invention relates to a micro-channel heat exchanger technology, in particular to a method for producing and assembling a micro-channel heat exchanger. According to the method, the problems of deformation of a core body protective plate and oxidized black residues attached to the protective plate caused by that the core body of the micro-channel heat exchanger is reinforced by a stainless steel square pipe before braze welding are solved. The method is characterized in that porous flat pipes are arranged between collecting pipes on two sides uniformly in parallel; a radiating belt is arranged between the adjacent porous flat pipes; the end parts of the parallel and symmetrical collecting pipes are plugged by end covers; partition boards are arranged in the collecting pipe; the porous flat pipes are arranged on the inner sides of the radiating belts on the edge of the length direction of the collecting pipes; upper protective plates or lower protective plates are arranged on the outer sides of the radiating belts; the protective plates and the lower protective plates are bundled by a plurality of steel belts; the core body, bundled by the steel belts, of the micro-channel heat exchanger is conveyed to a nitrogen protection high-temperature brazing furnace to be welded; and after the core body of the micro-channel heat exchanger moves out of the nitrogen protection high-temperature brazing furnace, the steel belts are removed. According to the method, no deformation defect exists, the surface is smooth, clean and attractive, and production efficiency is high.
Owner:浙江康盛热交换器有限公司

Method for integrally forming light automobile floor

The invention relates to a method for integrally forming a light automobile floor. The method comprises the following steps: firstly, mold laying-up operation is carried out, wherein bottom layer glass fabric, a PET foam core sandwich, upper layer glass fabric, release cloth, an isolation film with holes, a PP punching plate, a flow guide net and a vacuum bag film are sequentially laid on the surface of a mold, one end of a winding pipe stretches into the interior of the vacuum bag film, the other end of the winding pipe is connected with an external vacuum pump, one end of a resin injecting pipe is connected to the flow guide net, and the other end of the resin injecting pipe is connected with an external resin tank; secondly, the vacuum pump is started to carry out vacuum pressure maintaining; and thirdly, thermosetting resin is poured from the resin tank to enter the interior of the bottom layer glass fabric, the interior of the PET foam core sandwich and the interior of the upper layer glass fabric, excess thermosetting resin is sucked out through the winding pipe, mold releasing is achieved after curing treatment, and the light automobile floor formed by the bottom layer glass fabric, the PET foam core sandwich, the upper layer glass fabric and the thermosetting resin poured into the bottom layer glass fabric, the PET foam core sandwich and the upper layer glass fabric is obtained. Compared with the prior art, the automobile floor obtained through the method is flat and attractive in surface, light, difficult to combust, dampproof, corrosion-resisting and good in weather resistance.
Owner:SHANGHAI YUEKE COMPOSITE

Production method of multi-layer composite adhesive fabric

The invention relates to a production process of an adhesive fabric, particularly relates to a production method of a multi-layer composite adhesive fabric, and solves the technical problem that the adhesive fabric is loose and coarse in surface and extremely poor in protection property due to the fact that bubble, pinhole and sponge phenomena often exist on the surface of the adhesive fabric as a result of identical curing points of each adhesive layer in the multi-layer adhesive fabric production process in the prior art. The production method of a multi-layer composite adhesive fabric comprises the following steps: 1, component preparation: preparing components of two adhesives; 2, compounding: respectively compounding the two adhesives; 3, adhesive cement preparation: preparing adhesive cements of the two adhesives; 4, adhesive coating: coating the adhesive cement of a second adhesive on two faces of a nylon fabric, and then coating the adhesive cement of a first adhesive on one face of the nylon fabric; and 5, curing to obtain the multi-layer composite adhesive fabric. According to the formula of the process provided by the invention, the quality of the product is greatly improved; and the product is smooth and beautiful in surface, and has very good protection property against various corrosive substances.
Owner:SHANXI XINHUA CHEM

Strap-shaped welding wire filling-in type stirring friction treatment method

The invention relates to a strap-shaped welding wire filling-in type stirring friction treatment method, relates to a filling-in type stirring friction treatment method, and aims at solving the problem that generally high-energy beam powder bead welding can only be conducted under gas protection or even under vacuum condition. The method comprises the following steps of: firstly, pretreatment preparation, namely, a wire feeding wheel and a positioning guide wheel are fixed on a main shaft of a welding machine, a material to be treated is clamped, a strap-shaped welding wire is put under the positioning guide wheel, the positioning guide wheel is tightly adhered to the surface of the material to be treated, the strap-shaped welding wire is fixed on the surface of the material to be treated, and the end part of the strap-shaped welding wire is put just below a needleless welding tool; secondly, stirring friction treatment, namely, the welding machine is started, the needleless welding tool starts to vertically feed downwards, the shaft shoulder of the needleless welding tool is contacted with the end part of the strap-shaped welding wire and is gradually compressed into the upper surface of the material to be treated, and the strap-shaped welding wire is subjected to bead welding on the surface of the material to be treated by using the stirring and fogging and pressing functions of the shaft shoulder; and thirdly, after-welding settlement, namely, the welding wire is cut off by using a pair of cutting nippers, the residual welding material and overlap are removed by using a steel wire brush. The method is applied to stirring friction treatment.
Owner:HARBIN INST OF TECH

Double-layer composite glass magnesium board with high fireproof grade and preparation method of double-layer composite glass magnesium board

The invention discloses a double-layer composite glass magnesium board with a high fireproof grade. The double-layer composite glass magnesium board is characterized by being prepared from the following raw materials in parts by weight: 42-45 parts of light calcined magnesia, 39-41 parts of magnesium chloride hexahydrate, 7-9 parts of forsterite powder, 5-7 parts of tourmaline powder, 4-6 parts of expanded graphite, 1-2 parts of ammonium polyphosphate, 4.5-5 parts of metakaolin, 2.5-3 parts of aluminum dihydrogen phosphate, 1.5-2.5 parts of aluminum silicate fibers, 0.2-0.25 part of a silane coupling agent kh 550, 1.5-2 parts of waterborne polyurethane, 6-8 parts of a 5% polyvinyl alcohol solution, 15-18 parts of thermoplastic phenolic resin, 5-6 parts of 25% urotropine aqueous solution and a proper amount of pure water. According to the double-layer composite glass magnesium board, the forming time is shortened through a modifying process, the process is convenient for industrial control, the components are simple and easily available, and the production efficiency is improved; the prepared glass magnesium board has double-layer effect, is smooth and attractive in surface, high in fireproof grade, safe and non-toxic, and a moisture absorption and deformation problems are solved.
Owner:ANHUI XINRUN NEW MATERIALS

Preparation method of ginseng buccal tablets

The invention discloses a preparation method of ginseng buccal tablets. The preparation method comprises the steps that ginseng or ginseng processing leftovers which are washed clean and dried are crushed; the crushed materials are mixed to be uniform according to the material-water ratio of 1:10 and then extracted with hot water, the extracted materials are filtered with a filter screen, and then filtrate is collected; standing is conducted on the filtrate, supernatant liquid is taken to be screened with a screen and then concentrated into concentrated paste through a vacuum concentration pot, and the panaxoside content is measured and adjusted for standby application; auxiliary materials are weighed, and herba menthae is dissolved by edible ethanol; the concentrated paste and the auxiliary materials are mixed to be uniform, ethanol is added under the stirring condition, and a soft material with the moderate hardness is prepared; the prepared soft material is prepared into granules with the screen, and the granules are put into a constant-temperature drying oven to be dried; size stabilizing is conducted on the dried granules through the screen, so that the granules are uniformly dispersed; dissolved herba menthae, magnesium stearate and the granules are mixed to be uniform and then delivered into a tablet press to be tableted and sterilized, and packaging is conducted to obtain the finished product. The ginseng buccal tablets are unique in mouthfeel, uniform in color and luster, good in hardness and disintegrative property, smooth and attractive in surface and convenient to eat and have the specific flavor of ginseng, and the content of the functional ingredient ginseng total saponin is guaranteed.
Owner:YUNCHENG UNIVERISTY

Construction method and device for architectural decorative gray line

ActiveCN106088533AEffective crack resistanceThe transition is naturalBuilding material handlingRough surfaceBuilding design
The invention discloses a construction method and device for an architectural decorative gray line and belongs to the technical field of architecture construction. The method comprises the following steps that a protruding part on the surface of a concrete lintel, a protruding part on the surface of a ring beam, a protruding part on the surface of a frame column, a protruding part on the surface of a beam and the like are subjected to scraping flattening treatment, a gray line base layer is subjected to rough surface scraping, square setting, suspension straightening and ash cake making, gray line angle detail drawings are drawn in the positions, needing edge or corner gray line angle construction, of a wall face according to the requirements of architecture design and the decorative scheme, an ash cushion layer is smeared, line ash is smeared, covering ash is smeared, a gray line connector is repaired, and a maintenance procedure is conducted immediately after construction of the decorative gray line is completed. The construction method obtained by adopting the technology effectively simplifies the procedures, shortens the construction period, reduces work force and eliminates the common quality defects of unstraight line angles, cracks, obvious joint parts and the like, and rework due to quality problems is reduced; and in addition, the whole formed gray line angle is firm, good in durability, smooth and attractive in surface and uniform in color and luster, a line groove is straight and clear, and the appearance quality is high.
Owner:ZHEJIANG YIJIAN CONSTR GROUP
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