84 results about "Ground glass" patented technology

The invention relates to a glass single-face machining detection method, system and terminal, and relates to the technical field of glass machining.The method comprises the steps that after single-face grinding is completed on the basis of glass, a detection image of the surface of the ground glass is obtained; identifying the detection image based on a preset projection feature to form a projection image; judging whether the projection image is consistent with a preset projection reference image or not; if yes, clamping the glass into a preset qualified area; if not, analyzing a deviation condition between the projection image and the projection reference image and taking the deviation condition as projection deviation information; and processing abnormity early warning information is determined according to the projection deviation information, and the processing abnormity early warning information is output to a terminal held by a manager. The method has the effect of improving the qualified rate of the quality of the finally produced glass product.

The utility model relates to a glass edging machining device which comprises a workbench, a limiting assembly for limiting glass of different sizes is fixedly installed on the right side wall of the workbench, a fixing groove is fixedly formed in the left side wall of the workbench, and a driving part for controlling a polishing part to move in a reciprocating mode is fixedly installed on the side wall of the fixing groove. And a dust removal part for collecting chippings and dust generated in the grinding process is fixedly mounted at the bottom of the fixing groove. The glass edge grinding device has the beneficial effects that to-be-ground glass of different sizes is placed on the top of the workbench, one side needing to be ground is placed on one side of the fixing groove, a first electric push rod is started, the telescopic end of the first electric push rod pushes a push plate and conveys the glass to a grinding piece, a second electric push rod is controlled to enable the telescopic end of the second electric push rod to drive the grinding piece to move back and forth through a connecting block, and the glass is ground; and the fan is controlled to blow air outwards, and under blocking of the filter screen, glass fragments and dust generated in the edge grinding process fall into the dust collection box along the through opening in the bottom of the fixing groove through airflow, so that the workshop environment is prevented from being polluted by the fragments and the dust.

The utility model relates to the technical field of copyboards, and discloses an animation copyboard which comprises a shell, ground glass arranged on the shell, a lamp box arranged below the ground glass and located in the shell, a first clamping mechanism and a second clamping mechanism. The second clamping mechanism comprises an extrusion roller and a sliding assembly, the extrusion roller makes contact with the upper surface of the ground glass, and sliding grooves allowing the sliding assembly to slide are formed in the two sides of the shell; the sliding assembly comprises a sliding column, a connecting column and a spring; a movable cavity for the connecting column to slide is formed in the top of the sliding column, a sliding shaft matched with the sliding groove is formed on the side wall of the sliding column, the spring is fixedly installed in the movable cavity, the top end of the spring is fixedly connected to the bottom of the connecting column, and the bottom end of the spring is fixedly connected to the cavity bottom of the movable cavity. The problem that when original manuscript paper and blank paper are clamped by a copyboard in the prior art, a gap exists between the original manuscript paper and the blank paper, and the copying effect is affected is solved.

The invention discloses a high-strength low-warpage POK composite material, a preparation method thereof and a plastic part, and the high-strength low-warpage POK composite material provided by the invention is prepared from the following raw material components in parts by weight: 40 to 60 parts of POK resin, 10 to 15 parts of mineral filler, 30 to 40 parts of glass fiber, 0.1 to 0.3 part of antioxidant and 0.2 to 0.5 part of lubricant. The glass fibers are at least one of flat glass fibers and ground glass fibers. In a POK material system, specific types of glass fibers and mineral filler are added, and the combination ratio of the glass fibers to the mineral filler is adjusted, so that the comprehensive performance and warping resistance of the POK are greatly improved on the basis of not damaging the original wear resistance, chemical resistance and hydrolysis resistance of the POK.

The invention relates to a reinforced nylon 66 material as well as a preparation method and application thereof. The reinforced nylon 66 material comprises the following components in parts by weight: 20-45 parts of low-viscosity nylon 66; 20 to 45 parts of high-viscosity nylon 66; 15 to 30 parts of ground glass fiber; 3-6 parts of a toughening agent; 0-10 parts of kaolin; 0.8 to 2 parts of a lubricant; 0.2 to 0.4 part of a silane coupling agent; and 0.3 to 0.8 part of an antioxidant. The reinforced nylon 66 material is used for extrusion molding of plates or sheets. Compared with the prior art, the reinforced nylon 66 material prepared by the invention has the advantages that the processing window of extrusion molding is effectively improved by adopting a scheme of compounding high-viscosity nylon 66 and low-viscosity nylon 66, the size stability of a profile is improved and the cost is reduced by adopting ground glass fibers, and further, the surface smoothness of the profile can be better by adding a small amount of kaolin; through particle extrusion, the reinforced nylon 66 material for extrusion molding of sheets or plates is prepared.

The application discloses a multi-projection structured light coordinate system automatic correction method, which discloses the following steps: step one: the whole ground glass screen is divided into X areas, from area 1 to area X, the height is continuously rising, and the rising height is the depth of field requirement of the whole system; step two: area 1 is placed at the lower depth of field position of the whole system to shoot, then the ground glass screen is rotated, so that the whole system shoots area 1 to area X in turn. When the last area is shot, it is just in the upper depth of field area; step 3: a circular ring mark plate is placed at the 0 plane position to shoot a group of pictures; step 4: calibration is carried out, and the corrected calibration parameters can be obtained.

The utility model relates to the field of luggage, concretely relates to a multicolor mouth frame for a suitcase, the mouth frame is bent by clamping strips, the cross section of the clamping strip is in multistage reciprocating superposition and forms three clamping mouths, the outer surface of the outer clamping piece of the outer clamping mouth is divided into several different color areas, and the colors of adjacent color areas are different, the outer surface of the outer clamping piece includes an elevation and an inclined surface at an angle with the elevation, and the elevation and the inclined surface are both provided with ground glass particles, the utility model uses the angle formed by the inclined surface and the elevation of the outer clamping piece and the demarcation line between the two color areas of the elevation to make the mouth frame more streamlined and contoured, uses the ground glass particles on the outer surface of the outer clamping piece to make the mouth frame more substantial and prevent scratching, and uses the several different color areas of the outer surface of the outer clamping piece and the different colors of adjacent color areas to make the color of the mouth frame of the suitcase more abundant, thereby improving the fashion and durability of the suitcase.

The utility model discloses a toughened glass stress spot observation lamp box, the lamp box comprises a lower sheet table, an LED lamp tube is arranged in the lamp box, one side of the lamp box is provided with frosted glass and a polaroid in sequence from inside to outside, and one side of the lower sheet table is provided with a polariscope, by adopting the toughened glass stress spot observation lamp box, the observation efficiency is improved, the operation process is simplified, and the production cost is reduced. And the cost can be reduced.

The application relates to the technical field of decoration garbage recycling, in particular to a decoration garbage resource recycling air separation treatment equipment and method, when glass and other impurities fall onto the filter plate, the glass will continue to fall downwards after staying on the filter plate, thereby realizing that the glass and other heavy impurities fall into the No. 1 discharge port, then the No. 2 grinding roller in the No. 1 discharge port finely grinds the granular impurities, the volume of the crushed glass is greatly reduced after the grinding treatment; this can bring convenience to the storage, transportation and treatment of the glass garbage; the ground glass can be conveniently recycled; the ground glass can be better mixed with other materials and be used for producing glass products, glass fibers, building materials and the like; moreover, the ground glass has a large surface area, can improve the recycling efficiency and quality, and reduces environmental pollution.

The invention provides a method for preparing a pozzolanic material. The method comprises the following steps: collecting waste glass; crushing the waste glass into waste glass particles with a preset size; and grinding the waste glass particles to obtain fine ground glass micro powder with a preset particle size and preset particle size distribution, and taking the fine ground glass micro powder as the pozzolanic material. The invention also provides a pozzolanic material prepared by the method, and a product manufactured by utilizing the pozzolanic material.

The invention belongs to the technical field of chemistry and chemical engineering experiments, and particularly relates to a double-effect condenser. The double-effect condenser comprises an outer heat exchange pipe, an upper connector, a lower connector, a cooling liquid inlet, a cooling liquid outlet and an inner heat exchange pipe which are integrally designed. The outer heat exchange tube is a double-layer coaxial straight sleeve; the upper connecting port and the lower connecting port are respectively welded on a conical ground glass tube, a glass ball grinding port, a glass bowl grinding port or a glass flange connecting port at the top and the bottom of the first-layer tube; the cooling liquid inlet and the cooling liquid outlet are straight connecting pipes or pagoda-shaped connecting pipes which are respectively welded on the outer wall of the first-layer pipe; the inner heat exchange tube is a double-layer coaxial straight sleeve or a single-layer tube which is coaxial with the outer heat exchange tube. The double-effect condenser has the advantages of being high in heat exchange efficiency and small in environmental influence, and has important significance on improving the environment of a chemistry and chemical engineering laboratory and promoting rapid development of healthy chemistry.

This utility model discloses a chlorine reaction experimental teaching device in the field of experimental equipment technology. It includes a transparent frame, a reaction assembly mounted on the surface of the transparent frame for carrying out the chlorine reaction, and a heating assembly mounted on the surface of the transparent frame for providing a heat source. The heating assembly includes a heating element, a lithium battery, and a power controller. The lithium battery and power controller are both mounted on the back of the transparent frame and are electrically connected. The heating element is mounted on the front of the transparent frame and includes a thick-walled ground glass test tube, an MCH ceramic heating rod, and a rubber stopper. The rubber stopper is fitted over the opening of the thick-walled ground glass test tube, and the bottom end of the MCH ceramic heating rod is sealed through the rubber stopper and placed inside the thick-walled ground glass test tube. The MCH ceramic heating rod is electrically connected to the power controller. This utility model solves the problems of a lack of integrated experimental devices on the market, safety hazards in the heating method for the chlorine-metal reaction in experiments, difficulty in accurately controlling temperature, chlorine leakage, and environmental pollution.

The invention provides a composite material for a charging gun, a preparation method of the composite material and the charging gun. The composite material for the charging gun comprises the following components in parts by mass: 70-80 parts of polycarbonate (PC); 12 to 15 parts of polybutylene terephthalate (PBT); 8 to 12 parts of ground glass fiber powder; 8 to 10 parts of a halogen-free organic phosphorus flame retardant; 5-8 parts of a plasticizer; 0.2 to 0.3 part of an anti-dripping agent; 0.5 part to 0.8 part of an anti-ultraviolet agent; 0.1 part to 0.3 part of a crystallization nucleating agent; wherein after the PC is melted and before the PC is cured, at least part of PBT is crystallized at the crystallization nucleating agent and is anchored at the PC. According to the composite material for the charging gun, good size stability and high mechanical strength are realized on the basis of ensuring good flame-retardant and heat-resistant effects.

The utility model provides a kind of tensioning cylinder surface deburring equipment, belong to manufacturing technical field, including bearing mechanism, including fixed part;Driving mechanism, including being arranged in the rotating component of the fixed part surface, adjusting component being arranged in the fixed part surface and the limiting component being arranged in the adjusting component side, the rotating component includes being arranged in the motor of the fixed base surface, driving wheel being fixedly installed in the motor output end, ground glass cover being sleeved in the outer surface of the driving wheel, the adjusting component includes guiding rod being movably connected in the fixed frame surface, electric telescopic rod being arranged in the fixed frame surface, driven wheel being movably connected in the guiding rod surface, and the output end of the electric telescopic rod is fixedly connected with the electric telescopic rod.The utility model can flexibly adjust the position of driven wheel according to specific needs by setting adjusting component, adapt to different processing requirements, improve the operation flexibility and application range of equipment.

The application provides a kind of right-angle prism concave numerical control processing method based on machine vision, belongs to right-angle prism processing field, comprising: setting ground glass between imaging mechanism and right-angle prism surface to be processed, ground glass is located on the optical axis of imaging mechanism;Parallel light is irradiated to convex surface, imaging mechanism is moved to obtain focal position, with the focal position as origin, imaging mechanism is moved to approach or move away from right-angle prism along the optical axis direction of imaging mechanism, respectively collect the most clear light spot image on ground glass when moving in two directions, the center of two light spot images is calculated;According to the center of two light spot images, a first straight line is constructed, a plane equation of the surface to be processed is constructed, an intersection point of the first straight line and the plane equation is taken as the origin to establish a processing coordinate system, a concave surface processing program generated based on the mathematical model of right-angle prism is used to process the surface to be processed, and a concave surface is obtained.The application can improve the processing precision and reduce the labor cost.

The invention provides a full-automatic polishing machine. According to the full-automatic sweeping machine, a feeding disc and a discharging disc are arranged on a feeding and discharging sheet arranging table; the glass feeding assembly comprises a glass feeding bin and a feeding conveying part, the glass feeding bin is located on the peripheral side of the feeding and discharging sheet arranging table and is close to the feeding disc relative to the discharging disc, the glass feeding bin is used for providing glass sheets, and the feeding conveying part is used for conveying the glass sheets in the glass feeding bin to the feeding disc; the sweeping assembly is located on the side, not provided with the glass feeding bin, of the feeding and discharging sheet arranging table and used for grinding the glass sheets; the gantry assembly comprises a material taking suction cup, the material taking suction cup is movably arranged above the light sweeping assembly and the feeding and discharging sheet arranging table along the X axis, the Y axis and the Z axis, and the material taking suction cup is used for feeding the glass sheets in the feeding disc into the light sweeping assembly and discharging the glass sheets ground by the light sweeping assembly to the discharging disc. The polishing machine solves the problems that in the prior art, a polishing machine is low in automation degree and low in production efficiency.

The utility model provides a mechanical stirring rod connecting and sealing device for a high-vacuum chemical experiment, and belongs to the technical field of stirrers. The mechanical stirrer solves the major difficult problem that a mechanical stirrer in the prior art is poor in vacuum degree when being used for a high-vacuum chemical experiment. The connecting and sealing device for the mechanical stirring rod comprises a ground glass stirrer sleeve, a latex tube, a red latex cap and a thin iron wire, and is characterized in that the latex tube is cut off after being sleeved at the upper end of the ground glass stirrer sleeve by a little length, the latex tube is sleeved with the red latex cap, and the redundant part is cut off at the part slightly longer than the latex tube; the lower-end latex tube and the rubber cap ring are wound and tightened by thin iron wires, and a small amount of lubricating oil is dripped in the upper-end rubber cap ring. The device is simple and reasonable in structure and easy to implement. The device has the advantages of low cost, stable performance, convenience in use, easiness in popularization, good sealing effect and the like, and has practical and popularization values.

This application relates to the field of semiconductor manufacturing and discloses a glass substrate processing equipment and method. The equipment includes: a grinding unit, comprising a first grinding element, a second grinding element, and a carrier element. The first and second grinding elements are disposed opposite each other and used for grinding the glass substrate. The carrier element is located between the first and second grinding elements and has at least two carrier areas for carrying the glass substrate. The carrier element is configured to drive the glass substrate it carries to rotate relative to the first and second grinding elements, so as to achieve simultaneous grinding of both sides of at least two glass substrates. A cleaning unit is disposed downstream of the grinding unit and is used to clean the ground glass substrate. A drying unit is disposed downstream of the cleaning unit and is used to dry the cleaned glass substrate. A transfer unit is used to transfer the glass substrate between the grinding unit, the cleaning unit, and the drying unit, realizing integrated dry-in and dry-out processing of multiple square or round glass substrates of different specifications.

The invention belongs to the technical field of optical measurement, and particularly relates to a laser speckle micro-nano displacement measurement device and method resistant to environmental interference. In the prior art, a scheme for measuring displacement by adopting single-light-path laser speckles is adopted, the measurement result is superposition of real displacement and displacement noise introduced by environmental disturbance, and the measurement result is easily interfered by external factors such as environmental vibration and air disturbance. Therefore, the signal-to-noise ratio is low and the precision and the stability are difficult to guarantee in the displacement measurement of micron and nanometer magnitudes. According to the device, laser serves as a light source and irradiates ground glass fixed to piezoelectric single crystal wafers of different sizes to generate a speckle field, a speckle image is analyzed through a two-dimensional digital image correlation algorithm, and then the infinitesimal displacement is obtained through calculation. For the influence of environmental disturbance (such as tremor) on the measurement precision, the introduced displacement noise and the minimum displacement to be measured are in the same magnitude, and a digital image correlation algorithm is difficult to reflect the influence in real time.

The invention belongs to the technical field of glass production, and discloses a wall-mounted foldable glass fragment cleaning bracket and a use method, a foldable support frame is arranged below a wall suction hole of a wall body, and a hose bracket for supporting a wall suction hose is arranged on the support frame. When ground cullet is sucked, the folding type supporting frame is unfolded firstly, the hose bracket is located at the horizontal supporting position, and then the wall suction hose is placed on the hose bracket. At the moment, the hose bracket stably supports the wall suction hose, the pulling effect of the gravity of the hose on the section close to the ground is directly counteracted, and the hose is prevented from naturally drooping and being bent due to the gravity; meanwhile, the supporting frame is located below the wall suction hole, so that a linear supporting structure of the wall suction hole, the hose bracket and the ground suction end is formed in the path of the hose from the wall suction hole to the ground, the middle section of the hose is effectively prevented from being bent due to gravity, it is guaranteed that airflow in the hose is always smooth, and therefore the problems in the prior art are solved.

The invention relates to the technical field of circular internal cutting occluders, in particular to a circular internal cutting occluder for grinding glass nodules under lung pleura, which comprises a control grip, one side of the control grip is provided with a control mechanism, one end of the control grip is fixedly connected with a fixed shell, and one side of the fixed shell is fixedly connected with a data processing mechanism. A fixed long cylinder is fixedly connected to one side of the control grip, a circular cutting outer cylinder is arranged at one end of the fixed long cylinder, a plurality of circular cutting inner cylinders are fixedly installed in the circular cutting outer cylinder, and when the cut pulmonary nodule part is dragged out, a sliding block on a guide rod is driven to slide through pulling of a traction rope; and in the sliding process of the sliding block, the traction rubber rod on the side is driven, so that the traction rubber rod pulls the gripper to grasp and drag out the cut pulmonary nodule part.

According to the wet preparation method for the ground glass fibers and the double-roller type crushing device, the surfaces of the pressing rollers in the used double-roller type crushing device are made of ceramic materials, the situation that metal friction chippings pollute the ground glass fibers is avoided, the circumferential surface of one pressing roller in the double-roller type crushing device is a tooth surface, cutting teeth are formed, and the grinding efficiency is improved. The cutting effect of the contact surface on the fibers is improved, the grinding effect of the contact surface on the fibers is reduced, shape damage to the fibers in the crushing process is reduced, and the crushing efficiency and the product quality can be improved. The vibrating screen classifier is internally provided with three layers of screen plates and is provided with the spraying mechanism, so that one-time grading screening of materials is achieved, and ground glass fiber materials are separated under the dual effects of washing of sprayed water flow and the vibrating screen. According to the method, continuous production can be achieved, the process is simple and practical, the length specification and the product quality of the ground glass fiber product are easy to control, and pollution and health hazards to the environment and workers caused by ground fiber dust are reduced.

According to the edge grinding device for cleaning and drying the glass on the two sides, the screening machine comprises the transferring device, the edge grinding device body, the fixing device, the collecting box and the cleaning and drying device, the transferring device is used for conveying the glass and automatically transporting the glass from each link, manual conveying is not needed, manpower resources are saved, and the production efficiency is improved. The edge grinding device body is used for grinding, polishing and the like of the edges of the glass, so that the glass is safer and more attractive, the quality of the produced glass is improved, the fixing device is used for fixing the ground glass, and the situation that the production quality is affected due to grinding deviation caused by glass displacement, glass size change and the like is prevented; the collecting box is used for collecting waste water and waste chips generated during grinding, subsequent cleaning is facilitated, the environment is protected, the cleaning and drying device is used for conducting double-face cleaning and drying on ground glass, products are kept clean, subsequent packaging and selling are facilitated, the automatic process is achieved, and the working efficiency is improved.

The invention relates to the technical field of chemistry and chemical engineering experimental equipment, in particular to a dustproof pipe for a rapid steaming instrument, which comprises an upper connecting pipe, a lower connecting pipe, an outer gas-guide pipe, an inner gas-guide pipe and a dustproof plate which are integrally designed. The upper connecting pipe is a conical inner ground glass pipe or a glass flange; the lower connecting pipe is a conical glass pipe with an external ground opening, which can extend into the evaporating flask and is tightly attached to the opening of the evaporating flask; the outer gas guide tube is a reducing glass tube or a hollow glass ball positioned between the upper connecting tube and the lower connecting tube; the dustproof plate is a breathable thin plate located at the bottom of the lower connecting pipe. And the inner gas-guide tube is a glass tube which is positioned in the outer gas-guide tube, and the axis of the inner gas-guide tube coincides with the axis of the outer gas-guide tube. The dustproof pipe for the rapid steaming instrument has the advantages that the application range of the rapid steaming instrument in the field of chemistry and chemical engineering can be expanded, and the dustproof pipe for the rapid steaming instrument has important significance in improving the environment of a scientific research laboratory.

The application relates to the technical field of pest control, in particular to a natural enemy insect releasing device for forest pest control, which comprises a UAV body, a fixing seat fixed at the bottom end of the UAV body and a plurality of stainless steel pipe releasing barrels fixed at the bottom end of the fixing seat at equal angles. When the sealing cover plate is opened for releasing, the smooth material surface of the arc-shaped glass sheet contacts with insects, the surface of the arc-shaped glass sheet is free of fiber protrusions and has extremely low friction coefficient, crawling insects can smoothly climb to the releasing port, the climbing success rate is obviously improved, and the subsequent predation and breeding capacity is not affected. When the sealing cover plate is closed and releasing is not performed, the ground glass roller rotates to drive the ground glass surface to face the inside of the stainless steel pipe releasing barrel, sufficient climbing support points are provided for insects, the insects can climb to different heights of the inner wall of the stainless steel pipe releasing barrel, the problem that the insects are crowded and accumulated at the bottom of the stainless steel pipe releasing barrel is solved, and the body surface damage and suffocation risk caused by extrusion are avoided.

The utility model relates to a vortex light phase singular point decomposition device, which comprises a laser module, the laser module emits laser with resonance wavelength with an alkali metal atom D1 line, and the laser sequentially passes through an isolator, a lens A, a lens B, a reflecting mirror and a polaroid A and enters an alkali metal atom medium after being reflected by a polarization splitting prism A; the laser is emitted from the alkali metal atom medium and then is reflected by a polarization splitting prism B to enter a light collector B; incident vortex light is processed by the window sheet A, the diaphragm A, the diaphragm B, the ground glass sheet, the polaroid B and the lens C, then transmitted and enters the alkali metal atom medium through the polarization splitting prism A. The incident vortex light is emitted from the alkali metal atom medium, then transmitted and passes through the polarization splitting prism B, and is processed by the lens D and the window sheet B, and then emergent vortex light subjected to phase singular point decomposition is output. According to the method, the decomposition of the phase singular point with the larger topological charge to the phase singular point with the topological charge of + / -1 is realized, and the method has potential application value in the quantum communication technology based on the atomic medium.

The utility model relates to the related technical field of connection node waterproof structures, in particular to an outdoor ground glass daylighting roof and ground connection node waterproof structure which comprises a civil engineering structure arranged underground close to the connection position, the inner ring of the civil engineering structure is fixedly connected with a keel frame, and a glass panel is arranged on the keel frame; the supporting frame is arranged between the keel frame and the glass panel, a gap is formed between the supporting frame and the civil engineering structure, and the gap is filled with asphalt mastic; a waterproof roll is laid on one side of the supporting frame and the civil engineering structure, and a cement mortar layer is poured on one side, away from the civil engineering structure and the supporting frame, of the waterproof roll. The waterproof treatment of the joints of the glass and the steel structure and the glass and the concrete ground is effectively achieved. Therefore, the weather resistance and durability of the waterproof joint are improved.

The present invention provides a method for preparing a pozzolanic material, which includes the following steps: collecting waste glass; crushing the waste glass into waste glass particles having a predetermined size; and grinding the waste glass particles to obtain finely ground glass powder having a predetermined particle size and a predetermined particle size distribution for serving as the pozzolanic material. The present invention further provides a pozzolanic material prepared by the method, as well as a product manufactured using the pozzolanic material.

A method of making high performance concrete, the method may include adding ground glass powder (GP), nanosilica (nS) powder, cement, silica fume, fly ash, and sand to create a homogenized mixture. The method may also include homogenizing the mixture by mixing and adding water and superplasticizer to the homogenized mixture to obtain a slurry. The method may also include mixing the slurry until a high flowability mixture is obtained. The method may then include adding a first microsteel fiber (T1) to the high flowability mixture; adding a second microsteel fiber (T3) to the high flowability mixture; adding a third microsteel fiber (T4) to the high flowability mixture; and casting the high flowability mixture.

The invention provides a method for simply recovering carbon from waste glass fiber reinforced plastic and an electrode material. The method comprises the following steps: S1, crushing and grinding the waste glass fiber reinforced plastic into glass fiber reinforced plastic powder; s2, physically separating the ground glass fiber reinforced plastic powder according to the specific gravity of resin and glass fiber to obtain resin powder; s3, the resin powder and acid are mixed for a reaction, and pre-carbonized powder is obtained; s4, pyrolyzing the pre-carbonized powder to obtain carbon powder; wherein the weight ratio of the acid to the resin in the step S3 is (0.1-1): 1, and the mass concentration of the acid is 10-100%. According to the method, the crushed glass fiber reinforced plastic particles are further ground into the powder with the micron particle size, then the obtained glass fiber reinforced plastic powder is directly subjected to physical separation to obtain the resin powder, the acid and the resin powder react, and then low-temperature pyrolysis is conducted, so that the carbon recovery rate is increased, and the electrical performance of subsequent hard carbon can be improved.