661 results about "Plastic cement" patented technology

The invention discloses a graphene-containing insulated radiating composition and preparation and application thereof. The composition comprises the components of silica-coating graphene, insulated heat-conducting filler, a surface treating agent, and a function additive. The preparation method comprises the following steps of: hydrolyzing ethyl silicate on the graphene surface by the sol-gel method to obtain graphene coated with a silica film on the surface; adding the surface treating agent to a mixture of the insulated heat-conducting filler and modified graphene; uniformly agitating; then adding the function additive; and uniformly dispersing to obtain the insulated radiating composition. The composition has the advantages that the graphene is processed by insulating and coating, and the insulated heat-conducting filler and additive of other forms are coordinately added, thus the composition shows high radiating improvement effect in the plastic cement and coating fields; and the composition can be widely applied to a heating element and a radiating facility of various electronic products and electrical equipment, and can greatly improve the radiating effect as well as prolong the service life of devices.

The invention provides a protective energy-saving hood of a pressure cooker.The protective energy-saving hood of the pressure cooker comprises a housing 2 arranged on a cooker cover 1 in a sleeving mode and composed of shells 3 and side encircling sleeves 4; the shells 3 and the side encircling sleeves 4 are both made from plastic cement; the side encircling sleeves 4 are closely matched with the shells 3 and sealed to the cooker cover 1; each shell 3 is provided with a clearance groove 22, a valve position hole 21 and other clearance hole grooves, and the lower end faces of the clearance hole grooves are sealed to the surface of the cooker cover 1; a closed cavity 23 is defined by the housing 2 and the cooker cover 1; the peripheral edge of the upper end of each valve position hole 21 is not higher than the lower edge of a cap hole 12; the inner side wall of each shell 3 is provided with a liner 5 made from foaming plastic cement.The protective energy-saving hood is used on the pressure cooker cover in a matched mode and has the safety protection effect and the energy-saving and heat-preserving effects, cooking of the pressure cooker can be made convenient, and the protective energy-saving hood facilitates energy conservation and emission reduction, so that the protective energy-saving hood has application and popularization value.

The invention discloses a physical simulation method of coal-bed gas well hydraulic fractures. According to the method, a real three-shaft fracture simulating test frame is arranged, a fracture test piece with a wellbore hole simulator is placed in the real three-shaft fracture simulating test frame, and sound transmitting probes tightly adhere to the eight corners of the fracture test piece respectively through plastic cement and are connected with sound transmitting receivers through acoustic emission signal amplifiers; a hydraulic pressure stabilizer is connected to the exterior of the real three-shaft fracture simulating test frame; the top of the wellbore hole simulator is connected with an oil and water separator through a fracturing liquid pipeline, guar glue hydraulic fracturing liquid is added to the upper portion of the oil and water separator, and oil is added to the lower portion of the oil and water separator; a control panel is connected to the bottom of the oil and water separator. With the physical simulation method of coal-bed gas well hydraulic fractures, generation and development of fractures in the test piece can be detected in real time in the hydraulic fracturing physical simulation process in a laboratory, the three-dimensional characteristic analysis of the fractures is paid attention to, the method is not confined to observation on the extension of the fractures on the surface of the fracture test piece, and the extension process of the fractures can be better reflected.

The invention discloses black master batch for plastic cement and a preparation method thereof. The color master batch for plastic cement is prepared from the following components by mass percentage: 60-80% of pigment, 10-30% of carrier, 5-15% of compatibilizer, 0.1-2% of dispersant, and 0.1-1% of anti-oxidant. The beneficial effects reside in that: when used for coloring a plastic cement product, the color master batch provided by the invention has characteristics of good dispersibility, uniform coloring, high concentration, small usage amount and no influence on mechanical properties of the plastic cement product; and in secondary usage, the color master batch provided by the invention simplifies a production technology process co-mixed with the plastic cement raw material, avoids environment pollution, and has advantages of convenient usage, easy coloring, and time and raw material saving.

The invention provides an ultraviolet curing anti-sandblasting shielding protection printing ink, by taking total weight of a printing ink composition as a reference, the ultraviolet curing anti-sandblasting shielding protection printing ink comprises the following components by weight percentage: 50-70% of low polymer, 0.5-15% of active monomer, 3-8 parts of initiator and 15-30% of filling material; wherein the low polymer is one or two selected from aliphatic polyurethane acrylate and acid anhydride-modified epoxy acrylate. The ultraviolet curing anti-sandblasting shielding protection printing ink has the advantages of fast solidification speed, better adhesive force, CNC resistance, scratch resistance, immersion resistance by various cutting fluids, sandblasting resistance, easy stripping, no residues after film-stripping, and no base material corrosion; is suitable for metal base material and plastic cement base material, and is especially suitable for a metal and plastic cement-embedded composite base material.

This invention pertains to a process of making ASTM quality masonry cement, mortar cement, and stucco cement (also called plastic cement) and to the products themselves which are useful in making ASTM quality mortar for masonry construction or ASTM quality stucco for plastering construction. These cements are classified as hydraulic cements and are made using selected pozzolan(s), such as natural pozzolan and fly ashes, Portland Cement, hydrated lime, and an air-entraining agent. Other additives, such as fibers, may be added to further modify its properties. The pozzolans act as functional ingredients in the mix rather than as a filler. As a result, concentrations of greater than 25 wt. % and more pozzolan can be produced.

The invention relates to a preparation method of aqueous two-component super wear-resistant lusterless paint. The lusterless paint comprises an ingredient A and an ingredient B and a mole ratio of OH to NCO in the ingredients A and B is 1: 1.0-1.5. The ingredient A comprises a hydroxyl-containing aqueous resin, SMA resin, PMMA microspheres, aqueous color paste, auxiliary agents and water. The ingredient B is an aqueous polyurethane curing agent. A film of the aqueous two-component super wear-resistant lusterless paint has excellent high temperature resistance, super wear resistance, water resistance, weatherability and chemical stability. The preparation method improves paint surface texture, fullness, flexibility, smoothness and delustring effects and does not influence paint film texture and a brilliant degree. The aqueous two-component super wear-resistant lusterless paint has low VOC, does not contain heavy metals, is environmentally friendly, can be widely used for surface coating and protection of a base material with high temperature resistance, wear and scratch resistance and lusterless effect requirements and can be used for aqueous floor paint, aqueous high-grade woodenware paint, aqueous plastic cement paint, aqueous mobile phone paint and aqueous industrial paint.

The invention provides a water-based rubber paint. The water-based rubber paint is composed of, by mass, 5 to 35% of water, 30 to 80% of water-based rubber emulsion, 0 to 55% of water-based resin emulsion, 0 to 60% of a pigment and filler, and 0.1 to 25% of an auxiliary agent. The invention also provides a preparation method of the water-based rubber paint. The preparation method comprises following steps: 1, water, the water-based rubber emulsion, the water-based resin emulsion, and the auxiliary agent are prepared into a raw material at a certain mass ratio; 2, an obtained mixture is stirredfor 1 to 5h, wherein the rotating speed is controlled to be 50 to 200 round/min; 3, sieving is carried out using a sieve of 40 meshes, and then packaging is carried out. The water-based rubber paintpossesses following advantages: the water-based rubber paint is based on water, is friendly to the environment, and peeling is avoided; drying is quick; construction is convenient; repairing is convenient; the weatherability is excellent; color maintaining performance is excellent; stain resistance is excellent; cleaning is convenient; moisture resistance is excellent, salt spray resistance is excellent; mould resistance is excellent; and physical, chemical, and construction defects are avoided when the water-based rubber paint is used for coating base materials such as metal, cement, concrete, stone material, plastic, plastic cement, glass, tile, timber, film, paper, and leather.

The invention provides a plastic cement glove automatic picking and counting device on a plastic cement glove production line. The device provided by the invention has advantages of high picking efficiency and counting accuracy, and can be used to save labor cost. The device contains a grabbing assembly and a fishing transportation device, wherein the grabbing assembly contains grabbing units, the number of which is equal to the number of die-hanging wires. Each grabbing unit contains more than one grabbing manipulator which can rotate around X axis. There is always a grabbing manipulator positioned below a corresponding die-hanging wire. Two first optical detection devices are arranged in front of each grabbing unit. A product transmission line and a corresponding product transportation line are arranged along Y axial direction below the grabbing unit. The fishing transportation device contains a transportation manipulator disposed over the product transmission line and the product transportation line. The transportation manipulator has elevating degree of freedom in the Z axial direction and back and forth mobile degree of freedom in the X axial direction. The invention also provides a picking method of the plastic cement glove automatic picking and counting device on the plastic cement glove production line.

The invention provides an ultraviolet curing full-shielding protection printing ink, by taking total weight of a printing ink composition as a reference, the ultraviolet curing anti-sandblasting shielding protection printing ink comprises the following components by weight percentage: 40-70% of low polymer, 0.5-25% of active monomer, 3-5 parts of initiator and 15-30% of filling material; wherein the low polymer is acrylate resin derived from ester long-chain polyhydric alcohols. The printing ink has the advantages of simple operation, high efficiency, CNC resistance, scratch resistance, easy stripping, no residues after film-stripping, and no base material corrosion; is suitable for metal base material and plastic cement base material, and is especially suitable for a metal and plastic cement-embedded composite base material.

A sinking plate-type USB connector comprises an isolating sheet metal, a plastic cement matrix in which the isolating metal sheet is molded integrally, a first terminal set and a first plastic cement body which are assembled at the upper side of the plastic cement matrix, a second terminal set and a second plastic cement body which are assembled at the lower side of the plastic cement matrix, fixed holding members for fixedly holding the first and second terminal sets on the plastic cement matrix, and a metal shell. The sinking plate-type USB connector of the present invention realizes the shielding between the first and second terminal sets on a small size condition, and is good in forward insertion and inverted insertion compatibility.

The invention provides a metal mobile phone frame. The metal mobile phones frame comprises a metal outer frame (1), the inner wall of the metal outer frame (1) is provided with dovetail clamping grooves (11), the central portion in the metal outer frame (1) is provided with a metal area (2), two end portions in the metal outer frame (1) are provided with plastic cement areas (3), and the metal area (2) and the plastic cement areas (3) are fixedly connected with the metal outer frame (1) through the dovetail clamping grooves (11). The invention also provides a production method of a metal mobile phone frame. According to the invention, the metal mobile phone frame is not bent with quite large external forces and can protect a mobile phone screen, thereby being applied to manufacturing of a mobile phone.

A concrete filled tubular steel column includes a longitudinally extending vertical tubular steel shell and an inner tubular steel member disposed at the center of the steel shell. A plurality of spaced vertical steel plates extend from the inner members toward but not abutting the steel shell. In addition a plurality of horizontally disposed perforated pipes extend outwardly from the inner member and have a plurality of meltable polymer plugs or caps to prevent plastic cement from flowing into or closing the openings. In the event of fire the plastic or polymer plugs or caps melt and allow gases and smoke to flow into the pipes and up through the inner member and out therefrom at the top of the column.

The invention discloses a method for injection molding on a metal shell, a manufacturing method for the metal shell of a notebook computer and the metal shell. The method for injection molding on the metal shell includes the steps that S1, machining from the outer surface to the inner surface of the metal shell is carried out to form a sinking groove, and a reserved thin wall is formed between the bottom of the sinking groove and the inner surface; S2, plastic cement is injected into the sinking groove to enable the plastic cement to be subject to plastic molding; and S3, the reserved thin wall is broken and removed. As the reserved thin wall has the effects of keeping the plastic cement so as to prevent deformation of the plastic cement, the plastic cement injected into the sinking groove is tightly bonded with the metal shell, the plastic deformation of the plastic cement is smaller, and the surface quality is better.

The invention provides a vacuum perfusion infusion forming technique used for a speedboat, which comprises the steps of: cleaning, waxing and polishing a speedboat shell die at first, coating surface paint with the thickness of 0.6-1mm, then reinforcing a basic layer and coating glass fiber reinforced plastic with the coating thickness of 2-3mm, manually laminating a cloth felt on the coating, and then covering a diversion net, a demoulding cloth and a plastic cement cloth on the felt in sequence, respectively connecting one ends of a vacuumizing pipe and a resin diversion pipe on the diversion net and arranging the other ends outside, injecting resin after vacuumizing, and demoulding after forming. The vacuum perfusion infusion forming technique used for the speedboat has the advantages of reducing the weight of the original layer by 30 percent, reducing the emission of styrene by 90 percent, reducing the cycle time by 50 percent and reducing the labor cost by 30 percent, greatly improves the flow speed and has stable product performance.

The invention discloses a fake metal plastic cement material preparation method, which comprises the following steps: Step1, performing surface treatment of the metal powder with 300-500 meshes, then immersing the metal powder in a coupling agent solution at normal temperature for 0.5-2 hours, filtering the coupling agent solution in the metal powder, drying at 50-150 DEG C for standby with constant weight; and step2, premixing 5-50 parts of metal powder obtained in the step 1, 1-5 parts of lubricating agent, 5-30 parts of impact resistant additive and 100 parts of resin in a high mixing machine, and then placing a premixture in a twin-screw granulator for pelleting at the temperature of 220-280 DEG C to obtain the fake metal plastic cement material. By using the preparation method, the prepared fake metal plastic cement material is performed with injection molding to form a common product or a product with blow holes, no obvious weld mark is generated on the surface, the appearance is good, the cost is low, the environmental protection is little, and the secondary material enables easy recovery and utilization.

A new connector with effective shielding function. The new connector includes conductive shielding, a connector body and a set of terminals. The connector body is provided with a cavity within which the set of terminals can be accommodated and is made from plastic cement; the set of terminals are located within the cavity of the connector body. The conductive shielding can be inserted between the connector body and the set of terminals, and specifically includes several shielding bars and conductive areas; the shielding bars are made from metal, and the conductive areas, which are embedded in the shielding bars and connected with the ends of the set of terminals, are made from conductive plastic cement.

The invention discloses a method for combining metal with resin. The metal is subjected to coarse hole processing to form a micropore of which the diameter range is 10-30nm and the depth is 0.2-2 micrometers, and then, the metal is subjected to deep hole processing to form a nanometer hole of which the aperture range is 40-100nm and the hole depth is 2-5 micrometers; after hole forming processing,an etching hole, the micropore and the nanometer hole coexist, and the combination of the metal and the resin is finished through injection on the formed nanometer hole. Injection molding is carriedout through the processed nanometer hole, so that the metal and the plastic cement are in direct hook face combination, and a clamping hook groove does not need to be additionally arranged on the metal for holding adhesive. The combination strength of the method is superior to strength necessary for subsequent machining, the flexibility of a production plan can be improved, a subsequent manufacture procedure reject ratio is reduced, production efficiency is greatly improved, and cost waste is lowered.

The invention discloses a terminal plugging mechanism of an automatic assembling machine of an electric connector, which comprises a base and a terminal locating base, wherein the terminal locating base is provided with a baiting groove and a terminal groove; the front end of the terminal groove is provided with bosses which abutted against a terminal sticking point and have difference lengths; a plastic cement piece locating base, a terminal feeding rail, a lifting block, a pressure terminal sliding cover and a plunger pin are arranged around the terminal locating base; drive devices are arranged directly at the plastic cement locating base, the lifting block, the pressure terminal sliding cover and the plunger pin; therefore, the lifting block, the pressure terminal sliding cover and the plunger pin are utilized so as to cut a terminal material belt; and sliding of the plastic cement piece locating base and the bosses which are arranged on the front end of the terminal groove and the have different lengths are utilized so as to plug the terminal according to a predetermined length. According to the invention, a traditional manually terminal plugging method is substituted, thus, product production efficiency is increased, human resource consumption is reduced, operation personnel workload is reduced; relative potential safety hazard probability is low; in addition, reject ratio of the electric connector can be also reduced; the terminal plugging mechanism disclosed by the invention is suitable for large-scale manufacture and production; and enterprise competitive power is enhanced.

The invention discloses a connector and a manufacture method thereof, wherein the manufacture method comprises the steps of: (1) providing a metal shield casing and conductive terminals; (2) placing the shield casing in a forming die and suspending the conductive terminals in the shield casing to form a connector embryo; (3) injecting fused plastic cements into the forming die having the connector embryo to form an insulation body and a connector. According to the invention, the fused plastic cements are injected into the forming die having the conductive terminals and the shield casing to form the insulation body and then to form the connector, so that the components of the whole connector are combined tightly and the connector possesses good airtightness. In addition, the manufacture method, which can avoid the deformation of the components of the connector caused by mutual plugging in the assembling process, is simple in operation and has high work efficiency.