358 results about "Borosilicate glass" patented technology

The application discloses a kind of ship super-long anticorrosion special nano powder coating, preparation method and application, belong to ship heavy anticorrosion material technical field.The preparation method of the ship super-long anticorrosion special nano powder coating is as follows: epoxy resin, graphene modified epoxy resin, core-shell structure ZnO@SiO2, modified 2,5-dimercapto-1,3,4-thiadiazole, borosilicate glass powder, flaky boron nitride, silane coupling agent modified silica, phenolic amine curing agent, 2-ethyl-4-methylimidazole, fumed silica, defoaming agent, ultraviolet absorber, high-temperature pigment are put into stirrer and stirred for 20-30min, then melt extrusion is carried out through double screw extruder, the extrusion temperature is 90-110 DEG C, grinds and sieves, and the ship super-long anticorrosion special nano powder coating is obtained.The coating prepared by the application has good anticorrosion performance and can be applied in the field of ship metal surface corrosion protection.

The invention discloses metallized silver paste for improving sintering dusting of a TOPCon battery, a preparation method and application, and belongs to the technical field of solar battery manufacturing, and the technical scheme is that the metallized silver paste comprises the following components in percentage by mass: 72-87% of a metal phase; 3-9% of a glass phase; 8-12% of an organic carrier; 0.1%-0.5% of a polyimide precursor; 0.1 to 0.5 percent of cerium oxide; wherein the polyimide precursor forms a cross-linked network at a high temperature, the cerium oxide is used as a passivation layer protective agent, and lithium borosilicate glass is also added into the glass phase; according to the metalized silver paste for improving the sintering dusting of the TOPCon cell, the preparation method and the application, the dusting rate is reduced by improving and optimizing materials and process parameters, and compared with a traditional process, the efficiency, the photoelectric conversion efficiency and the yield of the solar cell are further improved.

The invention discloses rare earth co-doped alkali-free aluminum borosilicate glass and application, and the rare earth co-doped alkali-free aluminum borosilicate glass comprises the following components in percentage by mole: 68.85-69.60% of SiO2; 13.50%-14.15% of Al2O3 (aluminum oxide); 1.50 to 1.70 percent of B2O3 (boron trioxide); 4.45% to 4.60% of MgO; 5.45% to 5.80% of CaO; 1.20% to 1.80% of SrO; 0.50 to 2.80 percent of La2O3 (La2O3); 0.70% to 3.00% of Y2O3; and 0.10%-0.30% of SnO2. The rare earth co-doped alkali-free aluminum borosilicate glass has a high strain point, a low melting temperature, a low thermal expansion coefficient and a high elastic modulus, production energy consumption is reduced as much as possible under the condition that various properties are improved, and the production and manufacturing requirements of OLED display panels are met.

The invention relates to an electronic component material technology, and aims to provide an LTCC (Low Temperature Co-Fired Ceramic) material with low dielectric constant and low dielectric loss and a preparation method thereof. The LTCC material is prepared from zinc borosilicate glass and zinc borosilicate microcrystalline glass with different softening point ranges, a ceramic filler, silicate and a metal oxide through ball milling, mixing, modeling and sintering, and the material contains Zn2SiO4 with a devitrified phase. According to the invention, two kinds of zinc borosilicate glass with different softening points are adopted as cooling assistants, and a devitrified phase Zn2SiO4 is generated through reaction in the sintering process, so that the problem of large dielectric loss of a composite system caused by more glass phases can be effectively improved; by flexibly regulating and controlling the content of each component and the components of the auxiliary materials, the sintering characteristics of the glass internal component regulation and control material are optimized, and the success rate of matching and co-firing of the material and silver is further improved; meanwhile, the sintering window is relatively wide, so that good quality stability of the product is favorably kept; the dielectric loss of the composite system is reduced by doping the nucleating agent, and the volume shrinkage process of the material is regulated and controlled.

The invention relates to the technical field of laser cutting, in particular to a high borosilicate glass cold cutting device with a positioning mechanism, which is used for performing laser cutting and splitting on a high borosilicate glass plate and comprises a laser cutting machine, a processing table longitudinally moving in the laser cutting machine and a laser head transversely moving in the laser cutting machine, the high borosilicate glass plate is installed on a machining table, a splitting cover with an upward opening and an ultrasonic generator are fixedly installed on the machining table, the splitting cover is filled with cooling liquid, two symmetrically-distributed clamping pieces are arranged in the splitting cover, and an XYZ three-axis platform is jointly installed at the tops of the two clamping pieces. An ultrasonic transducer is installed at the output end of the XYZ three-axis platform, the ultrasonic transducer is electrically connected with an ultrasonic generator, and a driving assembly for driving the clamping piece to move horizontally or vertically is installed between the clamping piece and the machining table.

The invention discloses a low-dielectric low-loss high-strength borosilicate glass ceramic composite material and a preparation method thereof, and belongs to the technical field of borosilicate glass ceramic composites.The low-dielectric low-loss high-strength borosilicate glass ceramic composite material is prepared from, by weight, 70% of low-alkali borosilicate glass ceramics with the low borosilicate ratio, 29% of Al2O3 and 1% of Bi2O3. The preparation method comprises the following steps: preparing low-alkali borosilicate glass ceramics with a high borosilicate ratio, melting the low-alkali borosilicate glass ceramics with the high borosilicate ratio and amorphous SiO2 at a set temperature to obtain the required low-alkali borosilicate glass ceramics with the low borosilicate ratio, and finally mixing and ball-milling the crushed and ground low-alkali borosilicate glass ceramics with Al2O3 and Bi2O3 to obtain the low-alkali borosilicate glass ceramics with the low borosilicate ratio. And finally, the borosilicate glass ceramic composite material is sintered at the temperature of 880-900 DEG C. The borosilicate microcrystalline glass ceramic composite material is low in dielectric, low in loss and high in strength.

The invention provides a preparation method of a back contact solar cell, and the method comprises the steps: providing a solar cell substrate which comprises a silicon wafer, and the back surface of the silicon wafer is provided with a first region and a second region, a first tunneling oxide layer, a boron-doped polycrystalline silicon layer, a borosilicate glass layer, a second tunneling oxide layer, a phosphorus-doped polycrystalline silicon layer and a phosphorosilicate glass layer are sequentially arranged in the first region, and a second tunneling oxide layer, a phosphorus-doped polycrystalline silicon layer and a phosphorosilicate glass layer are sequentially arranged in the second region; forming a boron-phosphorosilicate glass layer on the back surface of the solar cell substrate; performing first laser processing on the edge of the second area and the first area; texturing the front surface of the silicon wafer, and etching the first laser processing area on the back surface of the silicon wafer; removing the second tunneling oxide layer and the borosilicate glass layer in the first region, and removing the boron-phosphorosilicate glass layer and the phosphorosilicate glass layer in the second region; and preparing a first electrode and a second electrode. According to the preparation method, the conversion efficiency and the yield of the back contact solar cell can be improved.

The invention provides a preparation method of a boron-doped selective emitter, the emitter and a TOPCon battery, and relates to the technical field of TOPCon batteries. The preparation method comprises the following steps: depositing a borosilicate glass layer on the front surface of a textured silicon wafer through a PECVD (Plasma Enhanced Chemical Vapor Deposition) process; removing the borosilicate glass layer in a non-fine grid region on the front surface of the silicon wafer through a laser patterning process to obtain the silicon wafer of which the borosilicate glass layer in a fine grid region on the front surface of the silicon wafer is reserved; forming a shallow doped region in a non-fine grid region on the front surface of the silicon wafer through a boron diffusion process, and forming a primary heavily doped region on a borosilicate glass layer in a fine grid region on the front surface of the silicon wafer; and pushing the boron source in the primary heavily doped region into the silicon wafer through an SE process to form a secondary heavily doped region so as to obtain the boron-doped selective emitter. The preparation method can reduce the proportion of concentric circles generated by silicon wafer oxygen precipitation caused by a high-temperature process, further reduces the contact resistivity of the front metal semiconductor, and improves the efficiency of the cell.

The invention discloses a three-dimensional thermal stress coupling simulation method for borosilicate glass / Cu / dielectric layers. The method comprises the following steps: collecting and sorting effective information of material attributes and physical fields involved in a simulation process; preliminarily screening material characteristic parameters, and determining interfacial compatibility among different materials; a preliminary three-dimensional model of the borosilicate glass, Cu and dielectric layer composite material is constructed, stability analysis is carried out for different material combinations, and an optimal material combination is screened; establishing a three-dimensional thermal stress coupling simulation model by combining the preliminary three-dimensional model, simulating thermal stress distribution under different working conditions, analyzing a stress transfer mechanism between different material layers, and optimizing thermal adaptability of a material interface; optimizing the structure of the composite material by using a finite element analysis technology, and adjusting the thicknesses and proportions of different material layers; through a repeated optimization process, an optimal three-dimensional thermal stress distribution design scheme is finally determined, and the effectiveness and reliability of the three-dimensional thermal stress coupling simulation method are verified through experiments.

The invention discloses a high-bending-resistance and low-dielectric-loss LTCC substrate preparation method and an LTCC substrate, and the method comprises the steps: mixing inorganic powder, an organic system and a solvent through ball milling, dissolving and stirring, and preparing a green ceramic chip through a tape casting technology; carrying out lamination, warm isostatic pressing, cutting, glue discharging and sintering on the green ceramic chip to obtain the LTCC substrate; the inorganic powder comprises sodium borosilicate glass, aluminum oxide and mullite whiskers. According to the invention, the sodium borosilicate glass is used as a glass phase, the mullite whisker and the alumina powder are used as ceramic phases, and the excellent mechanical properties and extremely low dielectric loss of the mullite whisker are utilized to modify the sodium borosilicate glass-alumina composite material. The problems that an existing sodium borosilicate glass-aluminum oxide LTCC composite material is low in bending strength and high in dielectric loss are solved.

The application provides an improved mold for producing medium borosilicate glass bottles, and relates to the technical field of glass bottle production and processing. The mold comprises a fixed mold, movable molds, support mold seats and a mold stripping assembly. Two movable molds and the fixed mold cooperatively form two mold cavities. The top of one side of each of the two support mold seats is provided with two protrusions. The mold stripping assembly comprises a hydraulic push rod, the inside of one end of the hydraulic push rod is provided with a guide sliding sleeve, one end of the guide sliding sleeve is provided with an adapter seat plate, a pulling spring is fixed between one side of the adapter seat plate and the movable end, and one end of the hydraulic push rod is provided with a linkage. The technical key points are as follows: the glass bottle is formed in the mold cavity between the fixed mold and the movable mold, the concave part of the bottom of the glass bottle is formed by the protrusions, and the horizontal surface of the bottom of the glass bottle is formed by the surface of the support mold seat. When the movable mold is controlled to move away from the fixed mold, the restriction on the glass bottle is removed, and the glass bottle is conveniently taken out.

The invention relates to a method for dealkalisation of the inside surface (5) of the wall (2) of a glass container (1), which wall (2) defines a cavity (3) and an opening (4) providing access to the cavity (3), the method comprising a step of providing a container made of borosilicate glass, wherein the inside surface of the wall is at a temperature of at least 350° C., and a step of introducing into the cavity, the inside surface being at a temperature of at least 350° C., a treatment liquid containing a substance designed to react under the effect of heat to cause dealkalisation of the glass.Methods for treating glass containers.

The invention discloses a colorless medium borosilicate medicinal glass tube and a preparation method thereof, and belongs to the technical field of glass products. The medicinal glass tube comprises the following raw materials in parts by weight: 550-650 parts of quartz sand, 60-70 parts of aluminum hydroxide, 100-250 parts of borax pentahydrate, 5-15 parts of sodium nitrate, 15-30 parts of sodium carbonate, 1-5 parts of sodium fluosilicate, 10-15 parts of calcite, 5-10 parts of barium carbonate, 5-10 parts of potassium carbonate, 10-20 parts of a compound clarifying agent and 400-500 parts of medium borosilicate glass slag. The quartz sand and the borax pentahydrate in a high proportion provide a basis for the high borosilicate glass, the chemical stability of the glass is remarkably improved, the glass can resist acid and alkali erosion and is very suitable for storing various medicines, and in addition, substances such as aluminum hydroxide, calcite, sodium nitrate, sodium carbonate and sodium fluosilicate are added, so that the thermal stability and the mechanical property of a glass product are improved.

This invention aims to realize a solid-state battery that can suppress the migration of components contained in external connection terminals. [Solution] The solid-state battery 1 comprises a power generation element 14, an outer casing 15, and external connection terminals 20 and 30. The outer casing 15 covers the power generation element 14. The external connection terminals 20 and 30 contain Ag, are in contact with the outer casing 15, and are electrically connected to the power generation element 14. The outer casing 15, in contact with the external connection terminals 20 and 30, contains borosilicate glass containing alkali metal elements and alkaline earth metal elements. The borosilicate glass of the outer casing 15 contains more K than Na as alkali metal elements, and the total content of alkali metal elements K and alkaline earth metal elements is 10.0% by mass or more and 16.0% by mass or less.

The application provides a low-temperature co-fired ceramic powder material and a preparation method and application thereof, and relates to the technical field of electronic ceramic materials.The low-temperature co-fired ceramic powder material provided by the application comprises the following raw material components in parts by weight: borosilicate glass powder 50-60 parts, quartz glass powder 30-40 parts, and powder additives 5-10 parts, wherein the powder additives comprise at least one of Al2O3, ZrO2, MgO and BaO.The low-temperature co-fired ceramic powder material prepared by compounding borosilicate glass powder, quartz glass powder and powder additives has a dielectric constant εr=3.8-4.5 after sintering, a low dielectric loss tan δ=0.001-0.0025, and a resistivity ρ=1.0-9.9*10 12 Ω*cm, the sintering temperature is in the range of 850-900 DEG C, and the density after sintering is good, and can be up to 99.8%.

The utility model discloses an LED (light-emitting diode) far and near light lens group of a combined lens in the technical field of lenses, which comprises an outer thick-wall part bracket, the inner part of the outer thick-wall part bracket is hollow, a daytime running light panel is detachably arranged in one end of the outer thick-wall part bracket, an outer thick-wall part is fixed on the outer wall of the outer thick-wall part bracket, and the outer thick-wall part is fixed on the outer wall of the outer thick-wall part bracket. An inner thick-wall part is arranged on the inner wall of the end, away from the outer thick-wall part, of the outer thick-wall part support, and a high borosilicate glass upper support is arranged at the end, away from the outer thick-wall part, of the inner thick-wall part. By optimizing the assembly layout, the overall size of the lens group is remarkably reduced, and the design flexibility is improved. And the radiator and the fan are combined, so that the working temperature of the LED lamp beads is effectively reduced, and the service life is prolonged. By controlling the lightening mode of the LED lamp beads, the distance and distance light function is achieved, and the lighting effect is improved. Due to the combination of the high borosilicate glass and the decorating part, various colors and patterns can be selected, and the visual aesthetic feeling is enhanced.

The invention belongs to the field of fine chemical engineering and the technical field of low-temperature co-fired ceramics, and discloses inner electrode copper paste for low-temperature co-fired ceramics as well as a preparation method and application of the inner electrode copper paste. The method comprises the following steps: adding ascorbic acid, polyethylene glycol and polyvinylpyrrolidone into ethanol, carrying out oil bath stirring to obtain an organic coating solution, and then adding copper powder to prepare copper powder coated with a polyvinylpyrrolidone film; the preparation method comprises the following steps: preparing mixed powder from silicon dioxide, boric acid, calcium carbonate, sodium carbonate, potassium carbonate and copper oxide, sintering at 1200-1500 DEG C to prepare molten glass, and carrying out water quenching on the molten glass to obtain borosilicate glass powder; mixing a solvent, a binder, a thixotropic agent, an additive A and the like to prepare an organic carrier; and magnetically stirring the copper powder coated with the polyvinylpyrrolidone film, the glass powder, the organic carrier and the additive B, and grinding and leveling by using a three-roller mill to obtain the inner electrode conductive copper paste. The conductive copper paste prepared by the method has the performance of preserving heat for a long time at a relatively high temperature, and is good in printing performance and excellent in conductivity.

The invention provides a solar cell and a laser slicing method, and belongs to the technical field of photovoltaics. The solar cell comprises a cell body, at least one emitter-free region is arranged on the front surface of the cell body, and the specific method comprises the following steps of: cutting phosphorosilicate glass or borosilicate glass on a p-n junction at a subsequent laser cutting position on one surface of the cell body, which is provided with the p-n junction, by using laser; and removing the p-n structure in the film opening region by wet etching, dry etching or mechanical etching to form an emitter-free region, manufacturing the cell, and then cutting along the emitter-free region on the front surface or along the region on the back surface of the cell corresponding to the emitter-free region on the front surface by using laser to crack the cell body. According to the invention, the damage of laser cutting to the p-n junction can be eliminated, and the decrease of the filling factor of the solar cell caused by laser cutting can be obviously weakened.

The embodiment of the present application provides a solar cell and a forming method thereof. The forming method of the solar cell comprises the following steps: providing a substrate; performing boron diffusion treatment on the substrate to form a boron-doped layer and a borosilicate glass layer which are sequentially stacked on the surface of the substrate, and the borosilicate glass layer has interstitial oxygen atoms; the boron diffusion treatment comprises a deposition stage and a pushing stage, the substrate is provided with a boron source and an oxygen source in the deposition stage; the temperature of a reaction chamber in the deposition stage is greater than that in the pushing stage; after the boron diffusion treatment, a passivation stage is performed, a passivation source is provided to the borosilicate glass layer, and the passivation source and the interstitial oxygen atoms react to form an oxygen-containing compound. The embodiment of the present application is beneficial to improving the performance of the solar cell.

According to the novel liquid metal current limiter of the resistive partition plate, a shell of the current limiter is an insulating shell, borosilicate glass on the shell is made of a transparent material, and internal changes of the shell can be observed conveniently. A resistive partition plate is arranged in the center of the interior of the cavity, a cylindrical through hole is formed in the center of the resistive partition plate and can be flexibly detached, and identical grooves are formed in the left side and the right side of the partition plate respectively. L-shaped electrodes are arranged on the two sides of the groove and connected with an external circuit. And the liquid metal can freely circulate in the two grooves and the through hole. And the air pressure is the same as the external atmospheric pressure. The problems that a traditional liquid metal current limiter is ablated, the starting time is short and the like are solved, the sensitivity to short-circuit current is increased, and the design difficulty in the cavity can be reduced due to the fact that the arcing strength is low.

This invention discloses a drilling visual plugging device, a plugging test system, a plugging test method, and its application. The plugging device includes: a cup body, a heating jacket, an upper cup cover, and a lower cup cover; the cup body has a cuboid structure with an inner cavity for holding the test fluid, and a mounting groove for placing the test piece at the lower end of the inner cavity; the upper cup cover has an upper connecting hole for connecting to an external pressure manifold, and the lower cup cover has a lower connecting hole for serving as a flow channel for leakage fluid; the heating jacket includes: a fixed surface and an openable surface; the two form a cavity for holding the cup body; one side of the openable surface is hinged to its adjacent fixed surface, and the other side has a locking element that can be fitted with its adjacent fixed surface to lock the cup body in the closed state; the openable surfaces of the cup body and the heating jacket are made of borosilicate glass, and the diameter of the inner cavity of the cup body is one-third to two-thirds of the width of the cup body. This invention meets the requirements of the plugging device for high-temperature and high-pressure visualization.

The utility model relates to the technical field of ampoule bottle production, in particular to a borosilicate glass ampoule bottle production heating device which comprises a base plate, a fixed box body is fixedly installed at the top of the base plate, and a plurality of limiting rods are evenly and rotationally installed at the top of the fixed box body at equal intervals. And the bottom end of the limiting rod penetrates through the top of the fixed box body and extends into the fixed box body, and a rotary table is fixedly installed on the outer wall of the limiting rod. According to the borosilicate glass ampoule bottle production heating device, through cooperative use of the base plate, the fixed box body, the first motor, the rotary table, the mounting frame, the limiting rod, the flame gun, the worm and the worm gear, a glass tube is directly mounted and limited on a rotating part in a rotating mode in the heating process of the glass tube, and the glass tube can be directly driven to rotate through rotation of the rotating part; friction cannot be generated, the abrasion problem is effectively reduced, and the product quality and stability in the production process are improved.

The invention relates to a novel transition tank for pouring low-viscosity epoxy resin, and belongs to the technical field of production and processing of insulating parts, the novel transition tank comprises a support and a tank body mounted on the support, the tank body is a transparent tank, an injection port is formed in the middle of the top end of the tank body, and a vacuumizing pipe is further arranged at the top of the tank body; a heater, a degassing barrel, degassing rings and a degassing umbrella are respectively arranged in the tank body, the heater is arranged in the middle of the degassing barrel, and a plurality of degassing rings are arranged in the degassing barrel. The tank body is made of organic glass or high borosilicate glass, the U-shaped heating pipe is arranged in the middle of the degassing barrel, and heat is diffused from inside to outside. The heat conductivity coefficient of the tank body made of organic glass or high borosilicate glass is 50 times lower than that of the tank body made of a metal shell in the prior art, the heat preservation effect is greatly improved, and the heat efficiency is improved.

The utility model discloses a placing rack for injection bottles made of borosilicate glass tubes, and relates to the technical field of injection bottle placing devices. The device comprises a base, a fixed column, a fixed seat, a placing seat and a movable plate, the device comprises a movable plate, a clamping mechanism and a sliding block, the top end of the sliding block penetrates to the top end of the movable plate, a movable frame is fixed to the top end of the sliding block through a bolt, a limiting seat is fixed to the top end of a fixed seat through a bolt, and a clamping block is welded to the bottom end of the movable frame. According to the utility model, the clamping mechanism is arranged; through the arrangement of a clamping block and a clamping groove, the moved placing base can be locked in time, the situation that when a user takes a bottle body placed in the placing base, the position of the placing base deviates and shakes is avoided, and therefore the stability when the user takes the bottle body is guaranteed, and through the arrangement of a connecting base, a rolling wheel and a sliding rail, the user can conveniently take the bottle body. And the placing seat is assisted to move horizontally, so that the stability of the bottle body placed in the placing seat during horizontal movement is further ensured.

Provided are glasses containing silicon dioxide (Si02) and / or boron oxide (B203) as glass formers and having a refractive index n greater than or equal to 1.9 d (at 587.56 nm) and a density (measured at 25 °C) less than or equal to 5.5 g / cm 3 Optionally, the glasses can be characterized by high transmission in the visible and near-ultraviolet (near-UV) range of the electromagnetic spectrum and / or good glass forming ability.

This invention discloses a wide-temperature-range gradient protective coating with a spiderweb-like biomimetic structure and its preparation method. The spiderweb-like biomimetic structure comprises an oxide phase as the spiderweb structure phase and a borosilicate glass phase as the remaining phase. The preparation method includes: mixing raw materials, densification treatment, polishing, and high-temperature oxidation treatment. The advantages of this invention compared to existing technologies are: based on the concept of a surface spiderweb biomimetic structure, it utilizes a spiderweb-like structure and a transition metal oxide mesh architecture to achieve a "liquid-locking" effect on the liquid glass phase at high temperatures. Furthermore, it leverages the surface tension of the liquid glass phase to fix a high content of liquid glass phase, providing a sealing effect to resist oxygen penetration and providing a protective seal. This enhances the coating's wide-temperature-range protective effect.

This invention belongs to the field of refractory materials for coke ovens in the coking industry, specifically relating to a refractory coke oven lining repair material and its preparation and application method. This application uses high-alumina bauxite, calcium hexaaluminate, calcite, biotite, wollastonite, and pyrophyllite as main materials, BaO as additives, and borosilicate glass powder and calcium phosphate as binders. Because the main materials of this repair material include high-alumina bauxite and calcium hexaaluminate, it has a high degree of compatibility with the original castable refractory, resulting in strong bonding. A single repair can extend the service life by more than one year, and it can be repeatedly repaired, thereby greatly improving the overall service life of the coke oven lining, reducing coke oven costs, and eliminating resource waste. This repair material can directly repair damaged parts of the coke oven without treating the lining, meeting the coke oven's usage conditions and enabling the reuse of the lining. Furthermore, the repair material's preparation method is simple, has a short construction cycle, and is easy to industrialize.

1. Name of the designed product: Fresh-keeping box (straight body of Italian high borosilicate glass). 2. Use of the designed product: used for containing food. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best indicating the design points: set 1 perspective view.

The invention provides a ceramic-based friction material of an automobile brake friction lining and a preparation process of the ceramic-based friction material. The ceramic-based friction material is prepared from the following raw materials: 10 to 15 percent of boron nitride nanotube modified silicon carbide, 15 to 20 percent of titanium aluminum carbon, 5 to 8 percent of modified barium zirconate nanofiber, 12 to 15 percent of rare earth modified aluminum oxide, 8 to 10 percent of basalt fiber, 6 to 8 percent of molybdenum sulfide / graphene hybrid material, 5 to 7 percent of nano zirconite, 3 to 5 percent of titanium nitride powder, 4 to 6 percent of ferrophosphorus alloy powder, 3 to 5 percent of phenolic resin and 2 to 3 percent of potassium silicate solution. 1-2% of borosilicate glass powder and the balance of hierarchical porous carbon fibers. The obtained ceramic-based friction material of the automobile brake friction lining has the comprehensive advantages of high temperature resistance, friction resistance, bending resistance, high impact resistance, capability of reducing brake noise and the like.

The utility model provides medicinal borosilicate glass tube wall thickness detection device relates to medicinal borosilicate glass tube production detection technical field, the utility model discloses a ultrasonic thickness gauge, the utility model discloses a storage device is set to, can first hold the outer surface of the limit cover and pull its to one end when not using ultrasonic thickness gauge, drive spring stretch, then can manually wind the wire on the winding rod, after winding, its one end is clamped in the recess of corresponding position, now in loosening the limit cover, make its under the reset action of spring, one side is abutted on one side of ultrasonic thickness gauge, the wire that winds up is covered and protected, avoid damaging, also can according to the length of need using in the use process, the wire is put out corresponding length on the winding rod, avoid the phenomenon of winding, knotting with surrounding object in the use process appears, improve the convenience and detection efficiency of detection operation.