39results about How to "Performance up to standard" patented technology

The invention discloses a pneumatic performance testing method as well as a pneumatic performance testing device. The method comprises the following steps of: simulating and generating a primary air stream and a scavenging stream in a primary air stream flow passage and a scavenging stream flow passage of a particle separator; measuring the total pressure value Pt1 of an inlet cross section of an air intake duct of the particle separator; then regulating the primary air stream outlet flow rate Q1 and the scavenging stream outlet flow rate Q2 of the particle separator respectively so as to enable the SCR to correspond to the preset value, wherein the SCR is equal to Q2 / Q1; measuring the outlet cross section total pressure value Pt2 in the primary air stream flow passage of the particle separator; and calculating the air intake total pressure loss value delta P. The device comprises the air intake duct, the primary air stream flow passage and the scavenging stream flow passage as well as air pumping fans arranged on the flow passages as well as a pressure measuring unit, a flow rate measuring unit and a flow rate regulating unit. The method and the device provided by the invention provide a quantization means for evaluating performances of the particle separator, and whether the performances of the particle separator correspond to the whole machine performance index of an engine can be tested conveniently.

The invention belongs to the technical field of functional polymer materials, and particularly relates to a high-transparent low-expansion polyimide film for flexible display and a preparation methodof the high-transparent low-expansion polyimide film. The high-transparent low-expansion polyimide film for flexible display is prepared from a beta-lithium nepheline inorganic nanometer filler with anegative expansion coefficient adding into a polyimide matrix through an in-situ polymerization method, addition of the beta-lithium nepheline inorganic nanometer filler increases the glass-transition temperature, and meanwhile, can reduce a thermal expansion coefficient; the polyimide matrix is obtained by a polycondensation reaction of 1,4-bis(3,4-dicarboxylic acid-5-trifluoromethyl acylamino benzene)cyclohexane dianhydride and aromatic diamine monomers, since dianhydride monomers simultaneously have fluorine-contained groups and alicyclic structures, formation of intermolecular and intramolecular charge transfer complexes can be effectively inhibited, the transparency of polymers is greatly improved, and meanwhile, contained acylamino can also lower a thermal expansion coefficient of polyimide; and according to the preparation method of the high-transparent low-expansion polyimide film, the production cost is low, and film forming performance is good.

The invention belongs to the technical field of polyimide films, and particularly relates to a high-transparency low-expansion polyimide film material and a preparation method thereof. The high-transparency low-expansion polyimide film is obtained by polycondensation of a diamine monomer and a dianhydride monomer, the diamine monomer comprises nitrogen-containing aromatic diamine R1, and the dianhydride monomer comprises 3,3'-acylaminobis-o-cyclohexyl tetracarboxylic dianhydride Ar1; wherein the 3,3'-acylaminobis-o-cyclohexyl tetracarboxylic dianhydride Ar1 is obtained by introducing an acylamino group into 2,2',3,3'-biphenyl tetracarboxylic dianhydride and then performing hydrogenation. The high-transparency low-expansion polyimide film disclosed by the invention has the advantages of favorable light transmittance, lower expansion coefficient and excellent heat resistance, and is suitable for a flexible display cover plate; the invention also provides a preparation method thereof.

The invention discloses a ceramic tile made from desulfurized residues and glaze residues. The ceramic tile comprises, by weight, 1-5% of mixed waste residues and 95-99% of base materials; the mixed waste residues comprise, by weight, 75-90% of the waste glaze residues and 10-25% of the desulfurized residues; the waste glaze residues are produced in the production process of ceramic tiles, and thedesulfurized residues are produced through flue gas desulfurization by lime water. The invention also discloses a production method of the ceramic tile. The ceramic tile and the production method thereof have the advantages that the waste glaze residues and the waste residues generated by flue gas desulfurization are introduced to a basic formula, so that the desulfurized residues and the waste glaze residues are recycled, and each performance of the product reaches the standard; the desulfurized residues and the waste glaze residues are recycled, so that waste discharged from production of the desulfurized residues and the waste glaze residues is avoided, the production cost of the ceramic tile can be reduced, and the quality of finished ceramic tile products is not affected.

The invention provides a casting method of bi-metal for a plunger pump rotor and belongs to the technical field of bi-metal casting. The casting method comprises the following steps: machining a steelsubstrate; pretreating the steel substrate; carrying out a heat-treatment annealing process on the steel substrate; carrying out Ni-Cu-P multi-component nickel plating on the inner surface of the steel substrate; preheating the steel substrate; smelting a lead-tin bronze alloy; casting the lead-tin bronze alloy; and machining the plunger pump rotor. A bi-metal binding surface obtained by adoptingthe casting method provided by the invention has the advantages that not only do the properties reach the standards, but also the equipment investment is low, the process operation is simple and convenient, and the workpiece cost is reduced; the casting method is suitable for extensive popularization and application, and has broad prospects; and compared with a powder metallurgy method, the casting method has the advantages that the performance is superior, the heat treatment procedure is eliminated, the time is saved, and the cost is reduced.

The invention belongs to the technical field of medical titanium alloy material processing, and particularly relates to a preparation method of a titanium alloy kirschner wire with high strength and plastic matching. The titanium alloy is prepared from the chemical compositions in percentage by mass: 5.8% to 6.2% of Al, 3.8% to 4.2% of V, 0.15% to 0.2% of Fe, 0.08% to 0.13% of O, less than or equal to 0.05% of C, less than or equal to 0.005% of H, less than or equal to 0.01% of N and the balance of Ti; firstly, round bar billets are obtained by melting, forging and rolling processes, then a low-high-low hot deformation processing method and a composite processing method of a low-temperature hot deformation technology are adopted, and finally a finished wire is prepared by a processing method of stress relief annealing and centerless grinding. According to the preparation method, high-strength plastic Ti-6Al-4V alloy intramedullary needle wire for medical products can be produced, and qualified raw materials can be provided for manufacturing intramedullary needle products of orthopedic medical devices.

The invention discloses a copper-steel double-metal composite casting method for a plunger pump rotor and belongs to the technical field of double-metal casting. The method includes steps of machiningof a steel base body, pretreatment of the steel base body, performing of a heat treatment annealing technology on the steel base body, Ni-Cu-P multi-element nickel plating treatment of the inner surface of the steel base body, flux treatment, preheating of the steel base body, smelting of a lead tin bronze alloy, performing of a hot dipping technology, casting and machining, and the plunger pumprotor is prepared. The performance of the double-metal combined surface obtained in the casting manner reaches the standards, the equipment input is low, the technologies are simple and convenient tooperate, the workpiece cost is reduced, and the method is suitable for wide popularization and application and has the broad prospect. Compared with the powder metallurgy method, the method has the advantages as follows: the performance is more excellent, the heat treatment procedure is omitted, the time is saved, and the cost is reduced.

The invention discloses a hollow paste-injected post insulator employing a vacuum impregnated fiber. The hollow paste-injected post insulator comprises an upper flange, a vacuum impregnated fiber column, an adhesive, a silicone umbrella skirt, a lower flange and white paste mud, wherein the upper flange is connected with one end of the vacuum impregnated fiber column; the other end of the vacuum impregnated fiber column is connected with the lower flange; the vacuum impregnated fiber column is in a hollow cylindrical structure; the surface of the vacuum impregnated fiber column is connected with the silicone umbrella skirt through the adhesive; the hollow part of the vacuum impregnated fiber column is filled with the white paste mud; and the inner sides of two ends of the vacuum impregnated fiber column are connected with seal covers through threads. The insulator disclosed by the invention can adapt to an environment temperature from -50 DEG C to +50 DEG C; the minimum creep distance, the lightning impulse withstand voltage, the switching impulse withstand voltage and the power-frequency wet-withstand voltage all can reach or exceed the requirements of other post insulators with the same model; the electric resistance of the hollow paste-injected post insulator can greatly exceed that of a traditional post insulator; and in addition, the mechanical strength completely conforms to the standards and requirements.

The invention provides a preparation method for a copper strip for flexible connection. Cover type annealing in a cold-rolling in-process rolling process and a cold-rolling on-bottom rolling process in conventional copper strip production is changed into gas cushion type continuous annealing furnace annealing, gas cushion type continuous annealing furnace annealing in a cold-rolled finished product rolling process in conventional copper strip production is changed into the cover type annealing, and multi-position improvement is performed on the cover type annealing, so that the problem that the conventional copper strip is easily broken by pulling in the gas cushion type continuous annealing furnace is solved, and the problem that severe bonding is easily generated between layers of the conventional copper strip after cover type furnace annealing is also solved. The annealing process is improved while performances of a finished product copper strip are not affected, so that the performances of the produced finished product copper strip completely reach standards, and standards and needs of a client are met.

The invention relates to a water-based prefabricated rubber runway and a preparation process thereof, and belongs to the field of synthetic material preparation. The water-based prefabricated rubber runway is provided against the problem that in the prior art, a water-based polymer cannot be used as a raw material for obtaining the low-toxicity rubber runway. The water-based prefabricated rubber runway comprises a wear-resistant layer and an elastic layer, and the wear-resistant layer is prepared from, by weight, 5-10 parts of water-based acrylic acid, 5-10 parts of waterborne polyurethane, 75-88 parts of solid raw materials, 2-5 parts of an inorganic color filler and 0.2-3 parts of an accelerant; and the elastic layer is prepared from, by weight, 5-10 parts of the waterborne polyurethane,5-10 parts of the water-based acrylic acid, 80-90 parts of the solid raw materials and 0.2-3 parts of the accelerant, wherein the solid raw materials comprise rubber powder and rubber particles. Thepreparation process comprises the following steps: 1, material mixing; 2, drying; 3, initial pressing; and 4, secondary pressurization. The problem in the prior art is solved in the invention.

The invention relates to the technical field of concrete, in particular to self-compacting concrete. The self-compacting concrete contains the following raw components in parts by weight: 150-250 parts of cement, 80-120 parts of mineral powder, 80-120 parts of pulverized fuel ash, 750-850 parts of mixed sand, 150-250 parts of hollow glass microspheres, 1000-1150 parts of pebbles, 8-15 parts of admixture and 150-200 parts of water, wherein the mixed sand contains the following components in percentage by weight of the total weight of the mixed sand: 5-25% of weathered sand and 75-95% of ultrafine sand; the fineness modulus of the ultrafine sand is 1.0-1.4; the fineness modulus of the mixed sand is not less than 2.6; the hollow glass microspheres have the particle size of 200-350 micrometers; coarse aggregates and fine aggregates are combined to achieve the continuity of the aggregate grading, and the amount of a cementing material is relatively reduced in the case of the same concrete strength. The invention also provides a preparation method of the self-compacting concrete.

The invention particularly relates to a high-transparency low-expansion polyimide film and a preparation method thereof, and belongs to the technical field of high polymer material modification. The high-transparency low-expansion polyimide film disclosed by the invention is obtained by condensation polymerization of amide type fluorine-containing hydrogenated tetracarboxylic dianhydride HTA-TFMBor ester type fluorine-containing hydrogenated tetracarboxylic dianhydride HTA-TFBP and a nitrogen-containing aromatic diamine monomer; the polyimide has the following structural formula, wherein Ar represents a nitrogen-containing aromatic diamine residue; and n represents the polymerization degree and is greater than or equal to 400. The high-transparency low-expansion polyimide film disclosed by the invention has relatively high light transmittance, low expansion and thermal stability; and meanwhile, the invention provides a simple and feasible preparation method.

The invention discloses an inspection equipment for a single-phase liquid crystal electricity meter. The inspection equipment includes a housing, an electricity meter cavity, a live line zero line inlet wire and a live line zero line outlet wire and also includes a jack cylinder connected with a top board. The top board is provided with round table shaped quick wiring posts corresponding to four wiring holes in the single-phase liquid crystal electricity meter and the round table shaped quick wiring posts are separately connected with the live line zero line inlet wire and the live line zero line outlet wire. The bottom of the electricity meter cavity is provided with a plurality of guide posts aligned to screw holes in the bottom of the single-phase liquid crystal electricity meter. The upper surface of the housing is provided with an interference coil capable of rotating around an axis to the above of the electricity meter cavity. The inspection equipment is provided with a signal transceiving module in communication with the single-phase liquid crystal electricity meter and a signal processing module processing signals of the signal transceiving module. The inspection equipment provided by the invention has advantages of realizing integrated inspection of the electricity meter before delivery and being simple in structure, quick and convenient in operation, comprehensive in inspection items, direct in inspection results and the like.

The invention discloses a miniature circuit breaker which has the advantages of low energy consumption, small size, low temperature rise, and simple structure, has larger change space in assembly with an auxiliary product, and has a wide application range. The miniature circuit breaker comprises a housing, an operating mechanism, a contact terminal mechanism, a switch actuating mechanism, a load terminal, a power source terminal arc-extinguishing hot tripping mechanism and a magnetic tripping mechanism; the hot tripping mechanism comprises a wire-in and wire-connection block, a temperature sensitive element and an arc striking piece which are riveted and fixed through first rivets; an adjusting screw is directly arranged at the top of the temperature sensitive element; the magnetic tripping mechanism comprises the wire-in and wire-connection block and a static contact which are integrally formed; a magnetic yoke is riveted on the static contact through a second rivet; a fixed shaft is arranged on the magnetic yoke; a counter-force torsion spring and an armature are sleeved on and penetrate the fixed shaft; and one end of the counter-force torsion spring is fixed and the other end of the counter-force torsion spring is propped against the armature.

The invention discloses ultrasonic radar detection equipment. An ultrasonic radar is inserted into the upper end of a test station, a first X-axis guide rail and a second X-axis guide rail are symmetrically arranged on the two sides of the test station, a first sliding block driver is installed at one end of each of the first X-axis guide rail and the second X-axis guide rail, and a Y-axis guide rail is arranged on the upper portion of each of the first X-axis guide rail and the second X-axis guide rail; first sliding blocks are arranged below the two ends of the Y-axis guide rail, the Y-axis guide rail is slidably matched with the upper portion of the first X-axis guide rail and the upper portion of the second X-axis guide rail through the first sliding blocks, and the power output end of a first sliding block driver is matched with the first sliding blocks; and a second sliding block is slidably arranged at the upper end of the Y-axis guide rail, the second sliding block is connected with the power output end of a second sliding block driver at the end of the Y-axis guide rail, a target object is fixedly installed at the upper end of the second sliding block, and the first sliding block driver, the second sliding block driver and the ultrasonic radar are all electrically connected with the controller. According to the invention, manual operation is not needed, the detection efficiency and accuracy are improved, the operation is simple and convenient, and the adjustment time is short.

The invention discloses a method for producing an aluminum alloy air bag supporting arm through a horizontal extrusion casting machine. The method for producing the aluminum alloy air bag supporting arm through the horizontal extrusion casting machine comprises the steps of (1) conducting mold casting and overflow design, (2) designing a mold cooling channel and (3) arranging sliding block core-pulling devices. The method for producing the aluminum alloy air bag supporting arm through the horizontal extrusion casting machine has the effects that the performance reaches the standard, the cost is low and the utilization rate is high.

The invention discloses an online pressure metal thermal treatment process and an online pressure metal thermal treatment device. According to the process, a pressure device is adopted to synchronously heat a workpiece and apply a pressure to the workpiece so as to realize thermal treatment and then discharging and cooling are automatically carried out. The metal thermal treatment device comprises a supporting body, a pressure mechanism, two heating mechanisms, a temperature control device, a time control device and a cooling mechanism, wherein the pressure mechanism comprises first and second pressure bases which are mounted in the supporting body and can be propped against each other and first and second driving mechanisms; first and second profiled grooves are respectively formed in the opposite surfaces of the first and second pressure bases; insulation structures are also arranged on the outer surfaces of the first and second pressure bases; the two heating mechanisms are respectively mounted in the first and second pressure bases; the temperature control accuracy of the temperature control device is 1 DEG C; the temperature control device is mounted outside the supporting body; the time control accuracy of the time control device is 1s; the time control device is mounted outside the supporting body; the cooling mechanism is mounted below the supporting body. According to the online pressure metal thermal treatment process and the online pressure metal thermal treatment device, the fact that the workpiece has qualified performance in the treatment process is guaranteed, and the phenomena of deformation, blowing-out discharging and the like are avoided.

The invention discloses a rubber plate containing a flame-retardant component and a preparation method of the rubber plate. The rubber material with the flame-retardant component comprises the following components in parts by weight: 30-60 parts of fluororubber, 30-45 parts of silicone rubber, 2-4 parts of sulfur, 3-5 parts of a vulcanization accelerator, 5-9 parts of stearic acid, 1-5 parts of an anti-aging agent, 3-5 parts of paraffin, 20-30 parts of a flame retardant, 2-10 parts of calcium carbonate, 15-20 parts of a reinforcing agent, 1-5 parts of aromatic hydrocarbon, 4-12 parts of argil, 15 parts of white carbon black, 3 parts of a scorch retarder, and 10-20 parts of grammite. The invention relates to the technical field of the rubber plate containing a flame-retardant component and the preparation method of the rubber plate. According to the rubber plate containing the flame-retardant component and the preparation method of the rubber plate, the problem that an existing rubber plate containing the flame-retardant component does not have good toughness and ageing resistance is solved.

The invention discloses an inspection equipment for a single-phase liquid crystal electricity meter. The inspection equipment includes a housing, an electricity meter cavity, a live line zero line inlet wire and a live line zero line outlet wire and also includes a jack cylinder connected with a top board. The top board is provided with round table shaped quick wiring posts corresponding to four wiring holes in the single-phase liquid crystal electricity meter and the round table shaped quick wiring posts are separately connected with the live line zero line inlet wire and the live line zero line outlet wire. The bottom of the electricity meter cavity is provided with a plurality of guide posts aligned to screw holes in the bottom of the single-phase liquid crystal electricity meter. The upper surface of the housing is provided with an interference coil capable of rotating around an axis to the above of the electricity meter cavity. The inspection equipment is provided with a signal transceiving module in communication with the single-phase liquid crystal electricity meter and a signal processing module processing signals of the signal transceiving module. The inspection equipment provided by the invention has advantages of realizing integrated inspection of the electricity meter before delivery and being simple in structure, quick and convenient in operation, comprehensive in inspection items, direct in inspection results and the like.

The invention provides a preparation method for a copper strip for flexible connection. Cover type annealing in a cold-rolling in-process rolling process and a cold-rolling on-bottom rolling process in conventional copper strip production is changed into gas cushion type continuous annealing furnace annealing, gas cushion type continuous annealing furnace annealing in a cold-rolled finished product rolling process in conventional copper strip production is changed into the cover type annealing, and multi-position improvement is performed on the cover type annealing, so that the problem that the conventional copper strip is easily broken by pulling in the gas cushion type continuous annealing furnace is solved, and the problem that severe bonding is easily generated between layers of the conventional copper strip after cover type furnace annealing is also solved. The annealing process is improved while performances of a finished product copper strip are not affected, so that the performances of the produced finished product copper strip completely reach standards, and standards and needs of a client are met.

The invention discloses a low-pressure casting method for an aluminum alloy fan blade and relates to the technical field of fan impeller casting. The low-pressure casting method comprises the following steps that 1, an aluminum alloy solution is prepared; 2, refining and modifying are conducted; 3, refining and degassing are conducted; 4, pouring is conducted; 4, shape correcting is conducted; and 5, inspecting is conducted. An aluminum alloy material is modified, so that the material performance is more stable, and the alloy performance is optimal; in the pouring process, a mold is heated in a partitioned mode, it can be guaranteed that the mold is cooled and shrunk in sequence, and it is guaranteed that the blade does not have surface and internal quality problems; and through inspection, defective products can be prevented from flowing into the market.

The invention discloses a cooling circuit testing device for an automobile fuel cell, comprising: a cooling liquid radiating component; a first cooling liquid pipe and a second cooling liquid pipe, one end of the first cooling liquid pipe and one end of the second cooling liquid pipe They are respectively connected with the outlet end and the inlet end of the cooling liquid radiator assembly, and the other end of the first cooling liquid pipe and the other end of the second cooling liquid pipe are respectively used to connect the cooling liquid input end and the cooling liquid of the cooling circuit of the stack under test. At the output end, the first cooling liquid pipe is provided with a water pump, and the cooling liquid cooling component, the water pump and the cooling circuit of the stack under test are connected through the first cooling liquid pipe and the second cooling liquid pipe to form a test circuit; a temperature-controlled expansion water tank; a plurality of Temperature sensor and multiple pressure sensors; multiple flow sensors; multiple solenoid valves; deionizer; conductivity online tester; can test various parameters of the cooling circuit of the fuel cell to ensure the cooling circuit of the fuel cell. The performance is up to the mark.

The invention discloses a method for comparing multi-parameter change rules of concrete, which comprises the following steps of: manufacturing and curing concrete test pieces with relevant sizes of multiple ages according to selected parameters to be compared; performing a corresponding test on the selected parameter to obtain a parameter value; by establishing a multi-parameter growth ratio evaluation model, the change rule among the selected parameters is compared and analyzed. The method can quickly and accurately compare the growth law of each parameter of the concrete, measure the growthrate of each parameter of the concrete, and judge the safety reserve of the parameters. In actual engineering, by comparing change rules among parameters, proper control indexes are screened on the basis of ensuring structural safety and performance to reach the standard, key control indexes are considered, engineering quality can be controlled, and the construction period can be reasonably arranged.

The invention discloses a sealing ring natural rubber material for a water supply and drainage pipeline. The sealing ring natural rubber material is prepared from the following raw materials in partsby weight: 50-70 parts of natural rubber, 70-90 parts of rubber seeds, 0.5-2.5 parts of sulfur, 2-5 parts of an accelerant, 2-6 parts of zinc oxide, 1-3 parts of stearic acid, 3-20 parts of engine oil, 50-70 parts of general carbon black, 3-20 parts of high-wear-resistance carbon black, 4-8 parts of an anti-aging agent, 0.5-2 part of micro-crystalline wax, 2-6 parts of a dispersing agent and 0.3-1part of an anti-scorching agent; wherein the rubber seeds are prepared from the following raw materials in parts by weight: 30-50 parts of butadiene rubber, 3-7 parts of pine tar, 10-15 parts of tackifying resin, 0.5-2 part of stearic acid, 20-30 parts of general carbon black and 3-7 parts of a defoaming agent. The invention also provides a preparation method of the sealing ring natural rubber material.

The invention relates to the technical field of metallurgical furnace charge, and provides a rare earth silicon magnesium nitrogen alloy for steelmaking alloying, which comprises the following raw material components in percentage by weight: 15-35% of rare earth lanthanum, 10-25% of rare earth silicon magnesium, 30-40% of silicon nitride, 12-28% of zirconium nitride, 5-15% of Ti6Al4V alloy, 3-10% of additive and the balance of iron and other inevitable impurity elements. When the alloy is applied to steelmaking alloying, deep deoxidation and desulfurization can be performed on molten steel, nitrogen increasing and alloying can be effectively performed on the molten steel, the cost is reduced on the premise that the performance of the steel is guaranteed, and the problems that in the prior art, the quality of the steel is unstable, and the production cost is high are solved.

The invention discloses a cooling loop testing device of a fuel cell for an automobile. The cooling loop testing device comprises a cooling liquid heat dissipation assembly; a first cooling liquid pipe and a second cooling liquid pipe, wherein one end of the first cooling liquid pipe and one end of the second cooling liquid pipe are connected with an outlet end and an inlet end of the cooling liquid heat dissipation assembly respectively, the other end of the first cooling liquid pipe and the other end of the second cooling liquid pipe are used for being connected with a cooling liquid input end and a cooling liquid output end of a tested electric pile cooling loop respectively, a water pump is arranged on the first cooling liquid pipe, and the cooling liquid heat dissipation assembly, the water pump and the tested galvanic pile cooling loop are connected through the first cooling liquid pipe and the second cooling liquid pipe to form a test loop; a temperature control expansion water tank; a plurality of temperature sensors and a plurality of pressure sensors; a plurality of flow sensors; a plurality of solenoid valves; a deionizer; and a conductivity on-line tester. The cooling loop testing device can realize tests of various parameters of the cooling loop of the fuel cell, and guarantees that the performance of the cooling loop of the fuel cell reaches the standard.

The invention belongs to the technical field of functional polymer materials, and particularly relates to a high-transparent low-expansion polyimide film for flexible display and a preparation methodof the high-transparent low-expansion polyimide film. The high-transparent low-expansion polyimide film for flexible display is prepared from a beta-lithium nepheline inorganic nanometer filler with anegative expansion coefficient adding into a polyimide matrix through an in-situ polymerization method, addition of the beta-lithium nepheline inorganic nanometer filler increases the glass-transition temperature, and meanwhile, can reduce a thermal expansion coefficient; the polyimide matrix is obtained by a polycondensation reaction of 1,4-bis(3,4-dicarboxylic acid-5-trifluoromethyl acylamino benzene)cyclohexane dianhydride and aromatic diamine monomers, since dianhydride monomers simultaneously have fluorine-contained groups and alicyclic structures, formation of intermolecular and intramolecular charge transfer complexes can be effectively inhibited, the transparency of polymers is greatly improved, and meanwhile, contained acylamino can also lower a thermal expansion coefficient of polyimide; and according to the preparation method of the high-transparent low-expansion polyimide film, the production cost is low, and film forming performance is good.

A preparation method of artificial stone plate lines comprises the following steps: S01, a to-be-printed material picture is printed by a drawing printer according to the size specification of a corresponding artificial stone plate to obtain a drawing of the material picture of the corresponding size specification; S02, the front face of the drawing of the printed material picture is attached to one surface of the artificial stone plate; S03, an upper interlayer device and a lower interlayer device in a plate heating ink seepage machine are used to integrally clamp the drawing of the materialpicture and the artificial stone plate; S04, the artificial stone plate is heated to 120-185 DEG C, the constant temperature is kept for 5-15 min, and ink on the drawing of the material picture permeates into the surface, attached to the drawing of the material picture, of the artificial stone plate; and S05, the artificial stone plate is left to stand and cooled to the room temperature. The linesof the artificial plate are formed through the ink seepage printing machine and are comparable with the lines of natural stone, the decoration effect is better, it is guaranteed that the performanceof the board reaches the standard, and the quality is more stable and easier to control.

The invention discloses a ceramic tile using desulfurization slag and glaze slag as raw materials. The raw materials in weight percent include: 1-5% of mixed waste slag, 95-99% of basic raw material; 75-99% of mixed waste slag in weight percent Composed of 90% waste glaze slag and 10‑25% desulfurization slag; waste glaze slag is waste glaze slag produced during the production of ceramic tiles, and desulfurization slag is waste slag produced by desulfurizing flue gas with lime water. The invention also discloses a production method of the ceramic brick. The invention introduces the waste glaze slag and the waste slag produced by flue gas desulfurization into the basic formula, so as to achieve the purpose of reusing the desulfurization slag and the waste glaze slag and ensuring that the properties of the products meet the standards. At the same time, waste glaze slag and desulfurization slag are recycled, which not only eliminates the production waste of desulfurization slag and waste glaze slag, but also reduces the production cost of ceramic tiles, and has no effect on the quality of finished ceramic tiles.