307 results about "Surface smoothness" patented technology

An additive manufacturing method based on micro-selective laser melting technology. By using a spot size of 30 μm or less, a metal powder layer thickness of 10 μm or less and ultrafine metal powders having a D90 particle size of 30 μm or less, and in combination with the control of a scanning laser power, a scanning rate, a linear energy density and a volumetric energy density within specific ranges, the method can print complex-structured metal parts having extremely high resolutions and surface smoothness, and can obtain a high-density internal structure of a component even under a relatively low energy density or power condition, thereby effectively protecting an optical system. Moreover, a printed component exhibits a defect-free microstructure, and has excellent electrical properties, thermal properties and mechanical properties. Particularly, ultrafine grains and a high dislocation density provide superior mechanical properties compared to conventional manufacturing materials. An infrared laser device can be used, thereby achieving low costs.

The invention discloses a clamping and supporting tool for thin-wall parts, and relates to the field of clamping and supporting tools, the clamping and supporting tool comprises a box body part, a square inner groove is formed in the middle of one end of the box body part, a first clamping tool is arranged in the square inner groove, and the first clamping tool is of a frame type structure and is matched with the square inner groove in the box body part; a plurality of first inner grooves which are symmetrically distributed are formed in the peripheral wall of the first clamping tool, the first inner grooves are blind grooves, and clamping springs are fixedly installed at the bottoms of the first inner grooves; by means of the combined structure of a frame type / rod-shaped clamp, an elastic support and a process plate, traditional rigid clamping is replaced, clamping force can be evenly dispersed, plastic deformation during thin-wall part machining is effectively avoided, the size precision, shape tolerance and surface smoothness of parts are guaranteed, and the rejection rate of the parts is reduced; and meanwhile, damage to the inner wall caused by excessive supporting is prevented through the process plate (or the follow-up process plate), and the qualification rate of parts is further increased.

The invention belongs to the technical field of heavy machine tool machining, and particularly relates to a transmission structure for heavy horizontal machine tool machining and a machining method. Comprising a moving seat, the two ends of the upper surface of the moving seat are fixedly connected with a tool apron and a skewness measuring assembly respectively, the skewness measuring assembly comprises a measuring tool connecting arm, the measuring tool connecting arm comprises a first measuring tool arm, one end of the first measuring tool arm is rotationally connected to a lifting seat and is in transmission connection with a stepping motor, and the stepping motor is fixedly connected to the lifting seat. The device can assist a wheel velocimeter in more conveniently and accurately measuring the rotating speed and the skewness of the outer surface of a turning billet in real time, and is more convenient for lifting a workpiece, so that cuttings generated in turning are reduced, and the cuttings are prevented from scratching the machined surface; built-up edges can be reduced, the surface smoothness is improved, and the surface roughness is reduced; and in the turning process, the turning speed is adjusted in real time along with the change of the shape and the quality of the machined steel blank so as to keep the optimal turning rotating speed.

The invention discloses a tension real-time feedback and slitting online monitoring system for a slitting machine, which belongs to the technical field of coiled material slitting and comprises a first guide roller group, a second guide roller group, a third guide roller group, a shearing mechanism and a polishing mechanism which are mounted on a fixing frame. The tension real-time feedback and slitting online monitoring system of the slitting machine further comprises a second mounting plate and a controller. The power of the first shearing roller is transmitted to the two sets of grinding assemblies through the first transmission belt, so that the multiple grinding parts of the two sets of grinding assemblies rotate synchronously, the top face and the bottom face of the coiled material obtained after slitting are ground, corners and burrs generated in the slitting process are removed, and the requirement of subsequent machining for the surface smoothness of the coiled material is met. The controller can be matched with the corresponding grinding rotating speed according to the burr conditions of different cut coiled materials, the situation that the coiled materials are damaged due to excessive grinding is avoided, and the defect that grinding is insufficient and residues exist is also avoided.

The invention relates to the technical field of gratings, in particular to a prismatic grating and a manufacturing method thereof. The prism grating comprises a prism and a grating part. The prism is provided with a binding face, the grating component comprises a base body part and a diffraction part, the diffraction part is mainly used for diffracting and splitting incident light, the base body part is arranged on the binding face, and the diffraction part is arranged on the side, away from the binding face, of the base body part. The base part and the diffraction part are integrally formed on the binding surface. The substrate part and the diffraction part are integrally formed and are formed on the binding surface of the prism together, so that the grating part is directly formed on the binding surface of the prism to form the prism grid, the process is simple, the flow is short, the cost is reduced, and the structural strength of the grating part is improved. According to the manufacturing method, the integrally-formed grating component is manufactured on the binding face of the prism through the imprinting technology, the imprinting technology is completed through automatic equipment, the dependence degree on the skills of staff is basically zero, meanwhile, the requirements for the surface smoothness, flatness, roughness and the like of the binding face of the prism are low, and the yield can be improved.

The invention discloses a one-kiln two-line production process for energy-saving glass, and relates to the technical field of energy-saving glass plate production. A shunting pressure stabilizing chamber, a central partition wall and an electromagnetic-platinum combined stirring device are arranged at the tail end of a melting furnace, and are matched with prolonging of clarification residence time and a microbubble bubbling device, so that a highly uniform temperature field and component distribution can be obtained before molten glass enters a feeding channel, and bubbles and inclusions are fully eliminated. By means of the collaborative measure, the melt cleanliness is remarkably improved, optical defects such as stripes, stones and white points in the subsequent forming process are greatly reduced, and the appearance and the physical strength of a finished product are more reliable. By means of the Y-shaped double feeding channels and the independent temperature control tin bath, ultra-thin glass and medium-thickness glass can be produced at the same time in the same melting furnace and do not interfere with each other. The main line focuses on the flatness and the optical quality of the energy-saving glass of the building curtain wall, and the branch line focuses on the thickness control and the surface smoothness of the ultrathin energy-saving glass.

The invention discloses a forging and heat treatment process for a single-row tapered roller bearing ring. Raw materials are sequentially subjected to cutting, forging, annealing, turning and heat treatment, and then the single-row tapered roller bearing ring is obtained. The hot-rolled polished bar is used as the raw material, so that the surface smoothness of the bar is ensured, no crack occurs during forging, and the yield of the material is improved; a secondary heating process is adopted after forging, it is guaranteed that the forge piece is in a reasonable temperature interval during rolling expansion, the phenomenon of rolling expansion cracks does not occur, and the product quality of the forge piece is guaranteed; the ash cooling process is adopted to replace slow cooling along with a furnace in an electric furnace, the process method is simple, practical and low in cost, and electric energy is saved on the premise that the quality of the forge piece is guaranteed; three-time preheating is adopted. The vacuum heating and heat conduction mode is radiation heating, and a repeated preheating mode is adopted, so that the ferrule in the furnace can be uniformly heated, the heating temperature is slowly increased, thermal stress in the ferrule can be reduced, and the quality of the quenched ferrule is ensured.

The invention provides a method for forming a semiconductor structure. The method comprises the steps of providing a first substrate; performing one or more metal stacking operations on the first substrate, wherein the metal stacking operations comprise: providing a second substrate; forming a metal layer on the second substrate; and performing separation operation on the second substrate and the metal layer, and transferring the metal layer to the first substrate. By adopting the technical scheme, the forming processes of the metal layers and the first substrate are mutually independent and do not influence each other, or when multiple metal stacking operations are executed, the forming processes of the metal layers are mutually independent and do not influence each other, so that the surface smoothness of the metal layers can be improved, and the surface smoothness of the metal layers can be improved after the metal layers are transferred to the first substrate. The contact effect of the metal layer and the film layer below is improved (for example, when multiple metal stacking operations are executed, the contact effect of the adjacent metal layers is improved, and the contact resistance can be reduced), so that the performance of the semiconductor structure can be improved.

The invention relates to the field of automobile lamp machining, in particular to an auxiliary positioning tool for surface spraying of an automobile lamp shell. According to the auxiliary positioning tool for spraying the surface of the automobile lamp shell, the sliding rods and the supporting clamping blocks on the conveying belt form a positioning clamping tool for fixedly supporting the housings, the multiple sets of spraying mechanisms are arranged, spraying-curing treatment of multiple layers of coatings is sequentially conducted on all the housings in an assembly line spraying mode, and the spraying efficiency is improved. In addition, the angle of the housing can be adjusted by pushing a supporting clamping block through a lifting supporting plate, the spraying pipe can evenly spray paint to the surface of the housing at a proper angle without large-angle rotation, and the surface smoothness and uniformity of a coating on the surface of the housing are improved. The technical problems that the working efficiency is low when coating spraying treatment is sequentially carried out on all the housings back and forth for multiple times, and the phenomenon of uneven coating spraying can be seriously caused by irregular curved surface structures of the housings are solved.

The invention relates to the technical field of mechanical seals, in particular to a mechanical seal repairing method. According to the repairing method of the mechanical seal, the hard coatings are formed on the abraded end faces of the moving ring and the static ring through the nanometer hard coating paste, the diamond grinding agent and the wool grinding head are used for conducting coarse grinding, fine grinding and mirror grinding on the solidified hard coatings, so that the hard coatings and the original surface form a uniform and flat surface, and the surface smoothness is smaller than or equal to 0.3 micrometer. After being installed, the repaired moving ring and the repaired static ring can resist the pressure of 0.2 MPa through pressure testing, so that the service life of the mechanical seal is greatly prolonged, the production cost of an enterprise is reduced, and the running loss is reduced.

The invention discloses a long-service-life steel shot grading rounding device, and belongs to the technical field of steel shot rounding, the long-service-life steel shot grading rounding device comprises a feeding mechanism used for feeding steel shots and a main body frame body, and the main body frame body is provided with an impact mechanism used for conducting preliminary rounding on the steel shots and a grading mechanism used for conducting grading rounding on the steel shots; a three-stage collaborative rounding process of pre-grinding, impact grinding and fine grinding is set, firstly, a grinding plate which rotates in a steel shot box and is provided with a rough surface and a non-uniform grinding column is used for carrying out primary dispersion and corner angle grinding on steel shots, and primary regularization is achieved; the steel shots are subjected to strong and multi-angle impact grinding and efficient sharp edge removal by utilizing the impact block which rotates at a high speed and is provided with bulges on the surface, and finally, in the grading grinding cylinder, the lower grinding plate performs continuous fine grinding and rolling, so that the surface smoothness is ensured, and the geometric consistency and the surface quality of the steel shots are improved.

The invention relates to the technical field of cerium-containing ultra-thin glass processing, in particular to a medicament for strengthening and thinning a cerium-containing ultra-thin glass cover plate and a preparation process thereof, which are used for solving the problems that the roughness is easy to increase and the surface smoothness does not reach the standard in the process of directly etching glass by traditional hydrofluoric acid, and if no strengthened glass cover plate exists, the glass cover plate cannot be thinned. The bending strength of the glass is obviously reduced, and the requirement on the bending strength cannot be met; meanwhile, hydrofluoric acid also causes direct contact harm to operators; the etching agent and the carbonization agent are used as agents to treat the cerium-containing ultra-thin glass cover plate, the etching agent can be used for etching and thinning the cerium-containing ultra-thin glass cover plate, the etching agent can react with fluoride to form a protective crystal nucleus layer, and the protective crystal nucleus layer is attached to the surface of the glass to form a protective layer; the bending performance of the cerium-containing ultra-thin glass cover plate is greatly improved, the protective layer can be thickened and strengthened through the coating formed by the carbonization agent, and the bending performance of the cerium-containing ultra-thin glass cover plate is further improved.

The present invention provides a slurry composition in which magnetic material powder has excellent dispersibility and excellent dispersion stability and which enables production of a sheet having high surface smoothness and high adhesiveness to substrates. Provided is a slurry composition containing: a polyvinyl acetal resin; magnetic material powder; and a Na ion, the slurry composition having a Na ion content of 1,000 to 3,000 μg / g relative to the polyvinyl acetal resin.

The invention discloses a high-performance fluorine-containing plastic processing aid. The aid comprises the following components in parts by mass: 90-100 parts of a resin matrix; 0.5 to 5 parts of a fluorine-containing polymer; 1-5 parts of a plasticizer; 0.5 to 3 parts of a lubricant; 0.05 to 0.2 part of an antioxidant; when the fluorine-containing plastic processing aid is added in plastic production, melt fracture can be effectively inhibited, the surface smoothness of a product can be improved, the dispersity of the aid and the compatibility of a matrix can be improved, the processing performance uniformity can be improved, the oxidation resistance of a material can be enhanced, the service life of the product can be prolonged, and the crystal structure can be improved; the mechanical property and the dimensional stability of the product are improved, and the forming processing energy consumption and cost can be obviously reduced.

The invention relates to the technical field of magnet yoke casting machining, in particular to an iron mold sand coating process production method of a nuclear magnet yoke casting and a demolding device. The method comprises the steps of 1, mold pretreatment; 2, sand-coated molding is carried out; 3, quality regulation and control; step 4, closing the mold and pouring; and 5, demolding and detecting. The sand scraping plate with the pressure feedback function is arranged, the compactness of sand is monitored in real time, the sand is vibrated through the multi-direction vibration auxiliary structure, the density distribution uniformity of all the positions of the sand is improved, and therefore the fitting degree of all the positions of the sand and a nuclear electromagnetic yoke casting is guaranteed, and the compactness of the nuclear electromagnetic yoke casting is improved. And the surface smoothness of the formed nuclear electromagnetic yoke casting is improved, so that the forming quality of the nuclear electromagnetic yoke casting is improved.

The utility model provides a single-ended hemispherical cylindrical hydrophone filling mould, which comprises a left half mould, a right half mould, a top cover and a bottom plate, the left half mould and the right half mould are buckled to form a mould cavity for forming a single-ended hemispherical cylindrical hydrophone, the mould cavity is communicated up and down, the top cover is fixedly connected on the left half mould and the right half mould at the upper end of the mould cavity, and the bottom plate is fixedly connected with the top cover. The bottom plate is fixedly connected to the left half die and the right half die at the lower end of the die cavity, the top cover is provided with an axially-through exhaust hole, the bottom plate is provided with an axially-through fixing hole, and the exhaust hole and the fixing hole are both communicated with the die cavity. The mold can improve the forming precision of the watertight layer of the hydrophone, reduce bubbles, improve the surface smoothness, reduce the demolding difficulty, improve the production efficiency, adapt to the forming requirements of products with unconventional shapes, save the research and development and manufacturing cost, and meanwhile, the mold is simple in overall structure and suitable for large-scale industrial production.

The utility model relates to the technical field of electromagnetic valves, in particular to a two-position three-way electromagnetic valve. In the prior art, small holes need to be machined in the end socket, the machining difficulty is high, the machining efficiency is low, and the surface smoothness is difficult to control. According to the two-position three-way electromagnetic valve, a movable core iron is further arranged in a sleeve, a first valve port and a second valve port are formed in a double-hole pole, a fixed sealing block is arranged on the core iron, the first valve port and the second valve port in the double-hole pole are sealed by the sealing block, and the sealing block is communicated with an inlet connecting pipe; a small valve seat is mounted on the single-hole pole, a single-pole hole is formed in the small valve seat, and the single-pole hole is communicated with a first outlet connecting pipe through a second transition hole and a first transition hole; the coil C is powered off, the core iron is separated from the single-hole pole, the sealing block closes the first valve port, and the inlet connecting pipe is communicated with the first outlet pipe; the coil C is electrified, the core iron is attracted with the single-hole pole, and the inlet connecting pipe is communicated with the second outlet connecting pipe. According to the utility model, the structure is reasonable, the flow maximization and the minimum pressure difference in the valve cavity can be realized, the processing difficulty of the product is reduced, and the core iron acts reliably.

The utility model discloses polishing equipment for optical lens processing, which relates to the technical field of optical lens polishing and comprises a machine table, a supporting plate arranged at the side end of the top of the machine table, a transverse moving mechanism arranged at the side end of the supporting plate, a moving block arranged on the other side of the machine table, and a vertical moving mechanism arranged at the top of the moving block. A top block is arranged at the top of the vertical moving mechanism, and a clamping mechanism is arranged at the side end of the top block; according to the optical lens polishing device, the moving block and the vertical moving mechanism are matched with each other, vertical movement and depth adjustment of the lens can be achieved conveniently, cleanliness is improved through the combination and adsorption effect of the suction cup base and the suction cup, the influence of dust and impurities on the polishing effect is reduced, and therefore the surface smoothness and transparency of the polished optical lens are guaranteed; and finally, the problems that equipment is insufficient in adjustment flexibility and difficult to adapt to machining requirements of lenses of different specifications, and the lenses are prone to displacement in the machining process are solved.

The invention discloses a forming method of an aerogel heat insulation part, which comprises the following steps: selecting a needling die, a forming die and a porous pressing plate according to the shape and the size of a target heat insulation part, needling and forming a fiber preform on the needling die, coating the preform with demolding cloth, and sewing at the edge; the prefabricated body is arranged in a forming mold, the mold gap is adjusted twice, two-step vacuum-assisted sol-gel dipping compounding is conducted, gel aging, solvent replacement and supercritical drying are completed together with the mold, and a finished product is obtained after demolding. According to the method, machining is not needed, fiber completeness can be kept, thin part machining cracking is effectively avoided, the product thickness precision and surface flatness are improved, the defects of air holes, insufficient pouring and the like are overcome, and the method is suitable for preparing thin aerogel heat insulation parts of various structures.

The invention relates to the technical field of cylinder section machining, in particular to a large thin-wall cylinder section end face machining system. An axial moving sliding table is slidably installed on a base and moves in the direction of the central axis of a cylinder section; the annular drag chain assembly is vertically installed on the main body frame and used for supporting and guiding cables and pipelines of the machining units and achieving annular movement. The inner shape maintaining clamping plate is installed on the main body frame and used for rigidly supporting the inner surface of the large thin-wall cylinder section. The machining unit is slidably mounted on the outer annular guide rail and the inner annular guide rail through the annular moving sliding plate, and the annular transmission system is used for driving the machining unit to do circular motion along the outer annular guide rail and the inner annular guide rail so as to machine the surface and the end face of the large thin-wall cylinder section. The large thin-walled cylinder section end face machining system aims at solving the problems that a large thin-walled cylinder section is poor in machining consistency, low in machining efficiency, poor in machining precision and low in surface smoothness.

The present application relates to the technical field of ceramics, and particularly relates to a sanitary ceramic glaze, a preparation method and application thereof. The sanitary ceramic glaze is made of the following chemical components with mass percentage: SiO2 58.6-63.6%, Al2O3 6-11%, CaO 10-15%, MgO 1-5%, Fe2O3 0.05-2%, TiO2 0.02-1.2%, K2O 11-16%, Na2O 0.9-5%, and the sum of the mass percentages of the chemical components is 100%. The sanitary ceramic glaze provided by the present application has high hardness, excellent easy-to-clean and antibacterial properties, an antibacterial rate of more than 99% and significantly improved durability, meets the market demand of high-end sanitary wares, and overcomes the defects of the existing sanitary ceramic glaze technology, such as insufficient surface smoothness, non-durable antibacterial performance, and mutual restriction of easy-to-clean and antibacterial properties.

An object of the present application is to provide a polyester resin or the like which is excellent in gelation inhibition, moldability, surface smoothness, transparency, mechanical properties, and heat resistance. The present application relates to a polyester resin characterized by containing, as constituent components of the polyester, a dicarboxylic acid component and an alcohol component, the content of a compound represented by formula (I) in the alcohol component being 0.0002 to 5.9% by weight (in the formula, m and n each are 1 to 1000, 1 represents 0 to 1000, R 1 represents an aromatic hydrocarbon group having 6 to 20 carbon atoms, R 2 , R 3 , R 4 each represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms).

The utility model belongs to the technical field of titanium rod surface polishing, particularly relates to a multi-stage polishing head group for titanium rod surface treatment, and aims to solve the problem that the polishing effect and the follow-up use performance are affected due to the fact that a polished titanium rod is not cooled in the prior art, the following scheme is provided: the multi-stage polishing head group comprises a limiting frame which is fixedly arranged at the top of a workbench; according to the titanium rod polishing device, through the multiple adjustable polishing mechanisms, the surface smoothness of a titanium rod can be remarkably improved, the distance between the polishing mechanisms and the titanium rod can be easily adjusted, and therefore the titanium rod polishing device adapts to the titanium rods of different sizes, automatic movement of the titanium rod is achieved through the driving assembly, and the polishing efficiency is improved. The polishing efficiency is improved, the labor intensity of operators is relieved, the cooling assembly is arranged, water spraying cooling is conducted on the titanium rod in the polishing process, thermal deformation or surface burning caused by high temperature is effectively prevented, and the polishing quality is guaranteed.

The invention relates to the technical field of semiconductor manufacturing equipment, and discloses a semiconductor equipment part surface sand blasting treatment device which comprises a processing bin, a sand blasting assembly is arranged at the top of an inner cavity of the processing bin, guide rails are fixedly connected to the two sides of the inner cavity of the processing bin, and inner cavities of the guide rails are movably connected with push-pull plates. According to the invention, a dual purification system of'storage barrel inlet filtration 'and'sand blasting head terminal filtration' is innovatively arranged, the grinding materials are primarily screened by the filter bin below the barrel cover when being added, and all the grinding materials must forcibly pass through the high-precision filter screen in the inner cavity of the sand blasting head before being jetted. The two-stage filtration effectively intercepts harmful impurities of all sizes, such as metal scraps and dust cakes, and ensures the purity of a spraying medium, so that a high-quality surface without scratches and pits can be obtained, the surface smoothness and the treatment consistency of semiconductor parts are remarkably improved, and a reliable foundation is laid for a subsequent precision manufacturing process.

This utility model discloses a grinding device for processing butterfly valve stems, belonging to the technical field of butterfly valve stem processing equipment. It includes a base, a worktable fixedly connected to the surface of the base, a carrier plate fixedly connected to the surface of the worktable, a grinding frame mounted on the surface of the worktable, and a grinding assembly mounted at the bottom of the grinding frame. An electrostatic elimination assembly is installed on the surface of the worktable. The workpiece is placed on the surface of the carrier plate and secured by locking components. The grinding assembly at the bottom of the grinding frame grinds the workpiece, thereby improving its surface smoothness. An ion fan is connected to an air guide seat via a rotary joint and an air guide pipe. An air blowing hood is fixedly connected to the surface of the air guide seat. When electrostatic treatment of the working area is required, the ion fan is activated, and ionized air is blown along the air guide pipe to the air guide seat, and then blown from the opening of the air blowing hood onto the surface of the carrier plate, providing excellent electrostatic elimination performance.

The utility model relates to the technical field of punching, in particular to mechanical part machining equipment facilitating scrap removal. According to the technical scheme, the drilling machine comprises a machine table, a tubular part and a sliding column, a main machine box is arranged on the machine table in a lifting mode, a drill bit is rotationally arranged on the main machine box, an arc-shaped groove is formed in the upper surface of the machine table, two clamping assemblies are symmetrically arranged on the two sides of the arc-shaped groove, and the tubular part is located on the machine table and located under the drill bit. And a scrap removing assembly is arranged on the inner wall of the tubular part. After drilling is finished, the grinding blocks are driven to rotate along the inner wall under the friction action of the grinding blocks and the inner wall of the tubular part, inner wall soft flocks formed by drilling are effectively removed, it is ensured that the soft flocks on the inner wall of the tubular part can be thoroughly removed in the machining process, the machining precision and surface smoothness of parts are remarkably improved, and the machining efficiency is improved. And poor subsequent assembly caused by soft flocks is avoided.

The utility model discloses a bar surface smoothness polishing mould frame, which relates to the technical field of bar processing, and comprises a fixed base, the rear side of the upper end of the fixed base is fixedly connected with an inner side fixed frame, the upper ends of the two sides of the inner side fixed frame are fixedly connected with turnover frames, a turnover driving shaft is rotatably arranged between the turnover frames on the two sides, and the turnover driving shaft is fixedly connected with the inner side fixed frame. An indexing driver is fixedly installed on the outer side of the overturning frame on one side, an output shaft of the indexing driver penetrates through the overturning frames and then is fixedly connected with an overturning driving shaft, and bars are continuously fed into the bar clamping notches in the upper side through conveying equipment and then overturned. After being ground, the workpiece directly falls into the roll-out roller set on the lower side to be conveyed to corresponding conveying equipment to be conveyed out, continuous polishing machining can be carried out, the structure is simple, design is reasonable, operation is convenient and fast, the problem that lathe resources are occupied for a long time in a traditional polishing method can be effectively solved, normal use of other equipment is not affected, and the production efficiency is greatly improved.

The invention provides mildew-proof decorative paper as well as a preparation method and application thereof, and relates to the field of mildew-proof decorative paper. The preparation method of the mildew-proof decorative paper comprises the following steps: preparing a core-shell composite particle dispersion liquid, preparing a mildew-proof agent, and mixing and manufacturing paper with pulp. According to the preparation method of the mildew-proof decorative paper, the problem that the whiteness, the opacity, the mechanical strength and the weather resistance of the mildew-proof decorative paper are influenced by directly adding the mildew preventive can be effectively avoided, and the whiteness, the opacity, the mechanical strength and the weather resistance of the mildew-proof decorative paper are effectively improved; and the surface smoothness, the veneer glue penetration grade, the veneer peel strength and the water-resistant and mildew-proof performance of the veneer artificial board prepared from the wood-plastic composite material are further improved.

The application discloses a precision instrument adjustable feed amount planer device, and relates to the technical field of planer devices, which comprises a workbench, a clamping plate is slidably arranged on the inner wall of the workbench, a sliding rail is fixedly arranged on the surface of a fixing table, a sliding table is slidably arranged on the outer wall of the sliding rail, a telescopic table is slidably arranged on the inner wall of the sliding table, a force storage spring is arranged between the telescopic table and the sliding table, a planer cutter is fixedly arranged on the bottom of the telescopic table, a friction wheel is fixedly arranged on the bottom of the workbench, and an adjusting device is further arranged on the surface of the workbench, so that the planer cutter and the friction wheel are prevented from scratching the processed surface again during the resetting process, the surface of the wood plate is prevented from being scratched or secondarily damaged, the machining precision and the surface smoothness are improved, the automatic lifting of the planer cutter is realized through the inclined surface contact and the spring force storage, the manual adjustment steps are reduced, and the continuous machining efficiency is improved.

This invention discloses a bamboo and wood wire drawing plate with an acute-angle cutting edge, comprising a steel plate substrate and several wire drawing holes embedded thereon. The wire drawing holes are made of 45# steel through quenching treatment, with an outwardly convex conical inlet at the center of the conical shape. A ring of acute-angle cutting edges less than 60° is formed around the inlet, with a radius of curvature of the cutting tip not exceeding 0.08mm. The wire drawing holes have a straight section not exceeding 2mm and an enlarged section with a diameter increased by more than 1mm. The wire drawing holes are assembled onto the substrate using a tight fit, ensuring no looseness between the wire drawing holes and the substrate. This application enables one-time cutting forming with a large allowance of more than 0.5mm, and the wire drawing holes are tightened more and more during processing, significantly improving processing efficiency while effectively reducing frictional resistance and ensuring the surface smoothness and structural stability of the wire.