50results about How to "Composite speed" patented technology

The invention discloses a method for producing a polyurethane multilayered composite plate. The method comprises the following steps: (1)chopped glass fiber and hot melt rubber powder are scattered on a transmission caterpillar of a compounding machine and are subjected to heat pressing and compounding to form a film; and the film is cooled and coiled to obtain a rubber glass film; and (2) firstly, nonwoven fabric, the rubber glass film and an adhesive film in turn are unreeled, stacked and paved on a worktable of a composite production line from top to bottom; and secondly, a polyurethane rigid foam plate is placed; the adhesive film, the rubber glass film and a hot melt rubber film in turn are unreeled, stacked and paved on the polyurethane rigid foam plate from bottom to top and are subjected to heat pressing, compounding and cooling to obtain the polyurethane multilayered composite plate. The method can realize one-step compounding and molding of the polyurethane composite plate and has low consumption of the production line and high production efficiency; a production process using the rubber glass film as a strengthening material and the adhesive film as a cementing agent improves the bonding force between the strengthening material and a PU plate; and a prepared product has the advantages of strong rigidity, flat surface and stable quality and suitability for molding the roof of an automobile by a cold mould method or a dry method.

The invention relates to the technical field of mechanical equipment, and in particular relates to a labelling device. The labelling device is applied to splicing among a chip, a liner and a body paper in an electronic tag; the liner/chip is provided with an adhesive sticker layer, and the liner and the chip are sequentially adhered to a banded release paper tape, thus a self-adhesion label band is formed. The labelling device disclosed by the invention comprises a base platform used for transporting the body paper, an unwinding wheel used for placing a roll formed by the self-adhesion label band, a winding wheel used for rewinding the release paper tape which is stripped from the chip/liner as well as a tension device for the transport path of the release paper tape and a stripping plate which are sequentially restricted and arranged between the unwinding wheel and the winding wheel. The labelling device disclosed by the invention realizes automatic combination between an RFID (radio frequency identification) chip/liner and the body paper in an RFID electronic label production process. Combination speed is rapid, effect is good, production efficiency is greatly improved, and the labelling device can coordinate with the existing production line; and the labelling device disclosed by the invention has the advantages of a simple structure, reliable operation, low cost and high reliability and is convenient for adjusting, can be applied to production of the RFID electronic labels in different specifications and has good practical value.

The invention provides a manufacturing technology of aluminized paper for cigarettes. The method includes the following steps of manufacturing an original paper layer, manufacturing a stamping aluminum foil layer, manufacturing complex adhesive and applying the adhesive for recombination. The original paper layer is made of natural materials and free of harm to human bodies, and certain fragrance is achieved while the original smoking taste of the cigarettes is reserved; meanwhile, the complex adhesive is made of biological materials, and no harmful matter is volatilized; meanwhile, through the interleaving paper and aluminized paper composite method, the whole composite speed is high, full drying can be achieved, and the interleaving paper and aluminum foil can be tightly combined.

The invention provides a production method of flame-retardant automotive roof fabric. By the production method, the technical problems that existing production methods have excessively complex steps, manual operation is needed, production speed is low and the like are solved. The production method of the flame-retardant automotive roof fabric includes a, raw material purchase, b, surface layer production, and c, compounding. The production method has the advantage of high production speed.

In the battery shell there are pole pieces of anode and cathode. The anode paste is mainly composed of nickel hydroxide. In the supplementary materials there are CoO, TiO2, and Y2O2 as additive. The cathode paste is mainly composed of hydrogen storage alloy powder. The pastes are coated on current collector to form pole pieces of anode and cathode. The anode piece, diaphragm, and cathode piece are rolled to form cell core. The electrolyte is filled into the battery shell. The said cathode piece is longer than the one of anode in rolling direction, and is 1-4mm wider than the one of anode, so that the cathode piece in outmost layer contacts the inner wall of battery shell, and the bottom of cathode is bonded with the bottom of battery shell by welding.

The invention relates to a reverse conducting-insulated gate bipolar transistor and a fabrication method thereof, and discloses a RC-IGBT (Reverse Conducting-Insulated Tate Bipolar Transistor) and a fabrication method thereof. The RC-IGBT comprises a substrate, a well region, an active region, a current collection region and a carrier low-lifetime thin layer, wherein the substrate is provided with a drift region, the well region is arranged in an upper surface of the substrate, the active region is arranged in the well region, the current collection region is arranged in a lower surface of the substrate, the carrier low-lifetime layer is arranged in the drift region, the upper surface of the substrate comprises an intermediate region and an edge region, the edge region encircles the intermediate region, the well region is arranged in the upper surface, corresponding to the edge region, of the substrate, the carrier low-lifetime thin layer is arranged under the well region, and the distance between the carrier low-lifetime thin layer and the well region is smaller than the distance between the carrier low-lifetime thin layer and the current collection region. In the RC-IGBT, The carrier low-lifetime thin layer is arranged under the well region, the carrier combination speed can be increased, hole injection of the well region on the drift region is reduced, a reverse recovery current of a FRD (Fast Recovery Diode) is further reduced, the reverse recovery time is further reduced, and thus, the switching speed of the RC-IGBT is increased.

The invention discloses an Er-Fe2O3/BiVO4 photocatalyst for degrading rhodamine B and a preparation method thereof. The method comprises the following steps of: (1) preparation of an Er-Fe2O3 precursor; (2) preparation of Er-Fe2O3; and (3) preparation of Er-Fe2O3/BiVO4; the Er-Fe2O3/BiVO4 photocatalyst is prepared through the three steps, the Er-Fe2O3/BiVO4 photocatalyst is obtained by conducting composite modification on Er-doped Fe2O3 with a narrow forbidden bandwidth and BiVO4, more electrons and holes are generated, and the photocatalytic activity is remarkably improved. Er is doped into Fe2O3, so that the light absorption range of Fe2O3 can be expanded, the carrier excitation capability is improved, meanwhile, Er can become a carrier capture trap, the service life of Er can be prolonged, and the photocatalytic activity can be improved.

The invention discloses a high-speed compounding and online peeling polyurethane transfer adhesive which comprises a component A and a component B. The component A comprises, in weight percent, 30-70%of polymers A1, 1-10% of polymers A2, 20-60% of polyisocyanate, 0.5-2% of coupling agents and 0.1-1% of leveling agents, the polymers A1 is one of polyether polyol and polyester polyol or mixture ofthe polyether polyol and the polyester polyol, the functionality of the polyether polyol is 2, the polymers A2 is one of polyester polyol and polyether polyol or mixture of the polyester polyol and the polyether polyol, and the functionality of the polyester polyol is larger than or equal to 3. The component B comprises, in weight percent, 5-25% of amine chain extenders, 0.1-1% of amine catalystsand the balance water. The invention further provides a preparation method of the high-speed compounding and online peeling polyurethane transfer adhesive. The high-speed compounding and online peeling polyurethane transfer adhesive is used for production of transfer aluminized paper, high-speed compounding and online peeling can be achieved, improvement of production speed is facilitated, energyconsumption and production cost are reduced, and the adhesive has high bending resistance and good heat resistance and anti-sticking property and is safe and environmentally friendly.

The invention discloses a multi-functional aluminum-plastic cloth composite film with a layered structure. The composite film comprises an aluminum foil layer. The upper surface of the aluminum foil layer is bonded with a thermoplastic polymer outer film layer, and the upper surface of the thermoplastic polymer outer film layer is bonded with a cloth base layer. A thermoplastic polymer inner film layer is adhered to the lower surface of the aluminum foil layer, and an anti-static polyethylene layer with an anti-static effect is adhered to the lower surface of the thermoplastic polymer inner film layer. The invention further discloses a preparation method of the aluminum-plastic cloth composite film with a layered structure. The invention provides the composition, the structural form and the manufacturing method of the multi-functional aluminum-plastic cloth composite film with a layered structure. The aluminum-plastic cloth composite film with a layered structure in the scheme is high in compounding speed and high in compounding strength, and the selection range of a base material and a barrier layer is wide. In addition, the aluminum-plastic cloth composite film with a layered structure in the scheme has excellent anti-static and moisture-resistant effects, and has a great application potential on products with high requirements on the anti-static effect and the water vapor transmission rate.

The invention provides a reverse conduction field cut-off type IGBT (Insulated Gate Bipolar Transistor). The reverse conduction field cut-off type IGBT comprises a substrate; the substrate is a P-typesubstrate; the back face of the P-type substrate is provided with a collector; the front face of the P-type substrate is provided with an electric field termination layer; one surface of the electricfield termination layer, which is far away from the P-type substrate, is provided with a drift region; P-type field limiting rings are arranged in the drift region; a plurality of P-type field limiting rings are provided; a field oxide layer and an oxide dielectric layer are arranged on the field limiting rings; P wells are formed in the front surface of the P-type substrate; N type emitters arearranged in the P wells; and the oxide dielectric layer is covered with a passivation layer. According to the reverse conduction field cut-off type IGBT provided by the invention, a manufacturing process is adjusted, and the service lives of carriers are prolonged; and therefore, the reverse conduction field cut-off IGBT has a high switching speed.

The invention discloses a hot melt adhesive for a siphon plate and a preparation method of the hot melt adhesive. The hot melt adhesive is prepared from the following raw materials: first EVA (Ethylene Vinyl Acetate) resin, second EVA resin, tackifying resin, Fischer-Tropsch wax and an antioxidant, wherein the content of VA in the first EVA resin is 25-30 wt%, and the content of VA in the second EVA resin is 15-20 wt%; the tackifying resin comprises a first tackifying resin with a softening point of 98-110 DEG C and a second tackifying resin with a softening point of 130-150 DEG C. The hot melt adhesive can improve the cohesiveness of the siphon plate, and has good chemical stability, aging resistance and ozone resistance. The preparation method of the hot melt adhesive comprises the following steps: mixing the Fischer-Tropsch wax and the oxidizing agent, adding the second tackifying resin and the first EVA resin, adding the first tackifying resin and the second EVA resin, heating and stirring to completely melt the raw materials, filtering, and granulating to obtain the hot melt adhesive for the siphon plate, so that environment-friendly, non-toxic, safe and efficient production is realized.

The invention discloses a laminating and die cutting integrated paperboard forming machine, which comprises a laminating unit and a die cutting unit, and is characterized in that a connecting table is arranged in front of the die cutting unit, a conveying belt is arranged among the connecting table and conveying rollers of the laminating unit and arranged on transmission wheels which are connected with a motor, an air suction and paper feeding device is arranged on the connecting table and comprises a paper storage and an air suction belt positioned below the paper storage, a slitter knife is arranged above the air suction belt, an optoelectronic switch arranged on the paper storage and the motor of the laminating unit are connected with a programmable logic controller. The paperboard forming machine integrating laminating and die cutting is higher in operating efficiency and lower in production cost.

The invention relates to an inorganic environment-friendly board and a preparation method thereof, and relates to the technical field of environment-friendly boards, the inorganic environment-friendly board comprises 30-50 parts of coal gangue, 2-6 parts of cement, 0.2-0.4 part of a reinforcing agent, and 6-10 parts of a curing agent aqueous solution; the preparation method comprises the following steps: dissolving a curing agent in water according to a mass part ratio of (2-4): 100 to form a curing agent aqueous solution; uniformly mixing 30-50 parts by weight of coal gangue, 2-6 parts by weight of cement, 0.2-0.4 part by weight of a reinforcing agent and 6-10 parts by weight of a curing agent aqueous solution to obtain a mortar-like mixture; injecting the mortar-like mixture into a grid mold, trowelling, and carrying out pressure forming to obtain a prefabricated slab; and naturally curing the prefabricated plate to obtain the inorganic environment-friendly plate. The coal gangue is used as a main raw material, the compounding speed of the coal gangue and the cement is increased through the curing agent aqueous solution, the solidification forming time is shortened, the strength of the plate is improved through the reinforcing agent, the utilization rate of the coal gangue is increased, the production cost of the plate is reduced, and the formed plate is high in flexural and compressive strength.

The invention provides an IGBT device and a manufacturing method thereof. The IGBT device comprises a substrate, an oxygen ion defect layer, a collector region and a hydrogen ion doped region; the substrate comprises a first main surface and a second main surface which are opposite to each other, a front surface structure of the IGBT device is formed on the first main surface, and the IGBT device comprises an active region, a transition region and a terminal region; the oxygen ion defect layer is formed in the second main surface of the transition region and the terminal region; the collector region is formed on the second main surface of the substrate; the hydrogen ion doped region is formed in the second main surface of the substrate, the oxygen ion defect layer is located in the hydrogen ion doped region, and oxygen ions of the oxygen ion defect layer serve as adsorbents of the hydrogen ions, so that the doping concentration of the hydrogen ions in the hydrogen ion doped region is increased. When the IGBT device is switched on, the emission efficiency of the transition region and the terminal region is reduced, and when the IGBT device is switched off, the electron and hole recombination speed of the transition region and the terminal region is improved, so that the problem of current concentration in the transition region is effectively relieved, and the reliability of an IGBT chip is improved.

The invention discloses release film compounding equipment and a release film compounding production line. The release film compounding equipment comprises a rack; a first unwinding device, a second unwinding device, an infrared preheating roller, a high-temperature water preheating roller, a composite roller device, a heat supply system, a cooling roller, a third flattening roller, an edge cutting mechanism and a winding device are arranged on the rack; a thin film on the first unwinding device is preheated through an infrared preheating roller, a base film on the second unwinding device is preheated through a high-temperature water preheating roller, the preheated thin film and the base film are composited through the composite roller device to obtain a composite film, and the composite film bypasses the cooling roller and the third flattening roller, is subjected to edge cutting through an edge cutting mechanism and then is fed into the winding device to be wound. Aiming at the characteristics of the polyester composite release film, the production requirements of the novel polyester composite release film can be met, the release effect of the polyester composite release film is ensured, and meanwhile, the large-scale production of the novel composite release film is realized.