26results about How to "Guaranteed roughness" patented technology

The utility model discloses a cathode roller on-line copper ring turning tool device which comprises a supporting frame, a positioning block and a positioning frame are arranged above the supporting frame, a connecting frame is arranged on the positioning frame, a lead screw mechanism module is fixed on an installation plane of the connecting frame, and the lead screw mechanism module comprises a module base, a lead screw, a sliding block and a handle. A turning tool rest mechanism is fixedly arranged on the lead screw mechanism module and comprises a dovetail guide rail, a double-lug handle with a lead screw and a turning tool clamp. According to the utility model, the bearing seat of the roller grinding machine is used for fixing and positioning, the positioning mechanism, the screw rod mechanism, the turning tool rest mechanism, the bearing mechanism and the like are integrated, and the characteristic that the cathode roller can rotate at a constant speed and a constant speed is utilized, so that manual grinding of copper rings is upgraded to turning tool turning operation, the labor intensity is greatly reduced, and the production efficiency is improved. And the surface roundness, straightness and roughness of the coped copper ring are guaranteed, and then the technical effects of reducing safety risks, reducing labor cost and improving working efficiency and operation precision are achieved.

The invention discloses shaping and accurate grinding equipment for non-ferrous metal calendaring, and relates to the technical field of metal shaping and accurate grinding. The shaping and accurate grinding equipment comprises a grinding table, a supporting frame is fixedly connected to the upper end face of the grinding table, an air cylinder is fixedly connected to the supporting frame, a grinding motor is fixedly connected to the output end of the air cylinder, and a grinding wheel is fixedly connected to the output end of the grinding motor; when the grinding wheel deviates, the detection rod can be automatically pushed to drive the push plate to make contact with the power switch, the power switch is toggled to turn off the grinding motor, the problem of uneven grinding caused by deviation of the grinding wheel is avoided, and therefore it is ensured that key parameters such as flatness and roughness of the surface of non-ferrous metal can meet preset requirements; and an automatic stop mechanism can quickly respond to the deviation condition, and the situation that when the grinding wheel deviates, the grinding wheel continues to work, the surface of the non-ferrous metal is excessively ground or even penetrated, and consequently the product is locally damaged or scrapped is avoided, so that the rejection rate of the non-ferrous metal is remarkably reduced, and resource waste is reduced.

The embodiment of the invention provides a printing control method, electronic equipment, a storage medium and a program product. The method comprises the steps that a task queue sent by a non-real-time application kernel is received through a communication protocol, and the task queue comprises a plurality of to-be-processed tasks corresponding to the five-axis laser printing equipment; determining a task type and a real-time requirement level corresponding to each to-be-processed task; according to the task type and the real-time requirement level corresponding to each to-be-processed task, adjusting the task priorities of the plurality of to-be-processed tasks to obtain a task priority queue; determining distributed system resources corresponding to the to-be-processed tasks according to the task priority queue and the current resource state; and executing each to-be-processed task according to the task priority queue and the allocated system resources corresponding to each to-be-processed task. The method is used for achieving the effect of improving the reliability of the printing system.

The invention relates to an ultra-long air valve alloy and a grinding method and device thereof, and belongs to the technical field of air valve alloy manufacturing. The method comprises the steps that a feeding table and a discharging table are placed on the left side and the right side of the centerless grinding machine correspondingly, and supporting devices used for fixing the air valve alloy are arranged on the sides, away from the centerless grinding machine, of the feeding table and the discharging table correspondingly; the air valve alloy sequentially passes through a feeding table, a centerless grinding machine and a discharging table and is fixed through the supporting device; grinding the air valve alloy by using a centerless grinding machine, wherein the grinding process comprises a rough grinding procedure and a fine grinding procedure which are sequentially carried out; the rough grinding procedure comprises a first rough grinding procedure and a second rough grinding procedure which are sequentially carried out; the grinding amount of each time of grinding is controlled to be the same, it is guaranteed that fluctuation generated by air valve alloy in the grinding process is relatively small, and roundness and straightness are guaranteed. And finally, accurate grinding treatment is conducted, and it is guaranteed that the surface quality and roughness of the air valve alloy meet the requirements.

The invention discloses a micron-order turning automatic tool receiving control method based on a vibration signal, and provides a linkage turning precision machining method for a narrow cavity of a disc part aiming at the machining difficulties of chip extrusion, tool hitting, interference collision and the like of a tool in the machining process of the narrow cavity of the disc part. A linkage turning precision machining scheme for a narrow cavity is effectively completed, the method comprises the working procedure steps of vibration sensor installation, system testing, signal extraction, machine tool communication and feedback action, part machining verification and the like, and the whole technological process design and implementation of linkage turning, tool design, program design and parameter selection are involved. The machining process of the parts of the family is stable and efficient, and the technical capacity and manufacturing maturity of batch production and stable delivery are achieved.

The invention relates to the technical field of tinplate machining, in particular to a tinplate cold rolling device which comprises a rack. The controller is fixedly connected to the outer side wall of the rack; a flattening mechanism; an electric push rod is started to drive a lifting frame to move, the lifting frame drives an upper working roller to move when moving, a pressure sensor is pressed when the lifting frame moves, and the pressure at the moment is monitored through the pressure sensor; when the tinned plate passes through the second upper working roller, a second electric push rod is controlled under the action of the controller, the electric push rod drives the connected lifting frame to move through the output end, the lifting frame drives the connected upper working roller to move when moving, and the lifting frame presses the corresponding pressure sensor when moving; the pressure sensor is used for monitoring the pressure at the moment, and when the difference value of the two pressures is not smaller than 1500 KN, the controller controls the second electric push rod to be closed, so that the rolling force of the two leveling mechanisms is adjusted, and the uniformity and stability of the roughness of the tin plate are kept.

The invention relates to the technical field of oil and gas drilling, in particular to a mechanical dynamic seal structure, a motor dynamic seal mounting structure and a seal testing device.The mechanical dynamic seal structure comprises a mechanical dynamic seal static ring and a mechanical dynamic seal dynamic ring which are coaxially arranged, and a mechanical dynamic seal static ring support is arranged on the inner side of the mechanical dynamic seal static ring; a mechanical dynamic sealing movable ring bracket is arranged on the inner side of the mechanical dynamic sealing movable ring; a first annular groove is formed in one end of the mechanical dynamic sealing static ring support, and a static ring alloy ring is arranged in the first annular groove. A second annular groove is formed in one end of the mechanical dynamic sealing movable ring support, and a movable ring alloy ring is arranged in the second annular groove. The static ring alloy ring and the moving ring alloy ring are hermetically and rotatably abutted against each other; an expansion ring is fixedly arranged on the inner side of the other end of the mechanical dynamic sealing movable ring, and a sealing top cover is fixedly arranged at the other end of the mechanical dynamic sealing movable ring in a sealing mode. The static ring alloy ring and the movable ring alloy ring rotate mutually, movable sealing is achieved through the oil film, the sealing effect is improved, and the sealing ring can be suitable for sealing in the high-temperature and high-pressure severe working environment.

This application relates to a lead-bismuth removal cleaning solution, its preparation method, its application method, and its cleaning system. The lead-bismuth removal cleaning solution provided in this application has low volume fractions of hydrogen peroxide and acetic acid, making it mild and safe. Furthermore, by rationally proportioning the volume fractions of hydrogen peroxide and acetic acid, the solution can accelerate the dissolution of lead and bismuth. Moreover, the weakly acidic nature of the solution can prevent excessive corrosion of the materials being cleaned, thus ensuring their roughness and achieving a good lead-bismuth removal effect.

The invention belongs to the technical field of nanotechnology, and particularly relates to an aluminum dam roller with a wear-resistant nano metal ceramic coating capable of resisting roughness reduction. The aluminum dam roller with the abrasion-resistant nanometer metal ceramic coating capable of resisting roughness reduction comprises a roller body, the roller body is a cylinder, the surface of the roller body is coated with the abrasion-resistant nanometer metal ceramic coating, and the nanometer metal ceramic coating sequentially comprises a base layer, a bonding layer and a functional layer from inside to outside. The functional layer is a nano tungsten carbide coating; and the roller body mounting shafts are positioned at two ends of the roller body. According to the wear-resistant nano metal ceramic coating provided by the invention, the roughness of the surface can be better maintained, and the friction coefficient of the surface of the dam roller is increased. And nano-scale tungsten carbide can be effectively coated on the surface of the dam roller.

The invention relates to the field of compressor valve plates, in particular to a compressor valve plate end face grinding special resin grinding wheel and a preparation method thereof.The compressor valve plate end face grinding special resin grinding wheel comprises, by weight, 100 parts of grinding materials, 4-6 parts of phenolic resin liquid, 10-15 parts of phenolic resin powder, 1-2 parts of polyvinyl butyral resin, 2-3 parts of gypsum powder, 1-2 parts of potassium fluoborate and 1-2 parts of zinc sulfide. Wherein the grinding material is a large-particle corundum micro-powder agglomerated grinding material prepared by utilizing a ceramic bonding agent. The large-particle corundum micro-powder aggregate prepared by the ceramic bond is used as the abrasive material, the abrasive material has a porous structure, high bonding strength and good self-sharpening performance, the resin grinding wheel prepared by the abrasive material has the advantages of loose structure, high mechanical strength, good retentivity and the like, and the abrasive material has the good self-sharpening performance on the premise that the roughness is guaranteed. The grinding efficiency is high, the heat dissipation performance is good, the single-time feed amount is large, finishing is not needed, the grinding procedures can be reduced, and the workpiece surface precision is guaranteed.

The invention provides a cutter with a vibration reduction function, and relates to the technical field of tool systems, one end of an installation cutter bar is provided with an installation cavity formed by extending inwards in the first direction of the installation cutter bar, the installation cavity is provided with a first end and a second end, the first end is an opening communicating with the end face of one end of the installation cutter bar, and the first direction is the axial direction of the installation cutter bar; the damping device is detachably mounted in the mounting cavity, the cutting part is detachably mounted on the end face, close to the first end, of the damping device, the cutting face of the cutting part extends out of the end face of the first end, the damping device abuts against the second end, and the damping device conducts damping on the cutter. According to the cutter with the vibration reduction function, for a cutter bar with the large length-diameter ratio, vibration in the machining process can be effectively reduced, bending deformation of the cutter bar is reduced, and the machining requirement for the roughness of the machined surface is met.

The invention discloses a stepped hole bottom surface grinding device, which comprises an electric drill unit, a grinding unit, a grinding unit, a grinding unit, a grinding unit and a grinding unit, and is characterized in that the electric drill unit is used for clamping and rotating the top end of a clamp body; the positioning column is fixed on the middle part of the clamp body and is matched with the stepped hole; the polishing head is detachably fixed on the clamp body and is positioned below the positioning column; the grinding head is tightly attached to the bottom face of the stepped hole and used for grinding the bottom face of the stepped hole. The electric hand drill switch is turned on, the grinding head is rotated, and the bottom face of the stepped hole is ground; and the coarse gauze grinding head, the fine sandpaper grinding head and the felt grinding head are sequentially replaced, so that the roughness of the bottom surface of the stepped hole is less than or equal to 1.6, and the quality of the shell is ensured.

The utility model relates to the technical field of radiator assemblies, and particularly discloses a nozzle structure with a flange plate, which comprises a main plate, a nozzle and a soldering lug, the lower part of the nozzle is provided with a flange plate part horizontally extending outwards, a vertical through hole is formed in the main plate in a penetrating manner, and a sinking table is machined on the surface of the main plate at the outer edge of the upper end of the through hole; the inner wall of the sinking table is attached to the outer circumferential wall of the soldering lug and the outer circumferential wall of the flange plate part, the soldering lug, the through hole and the flange plate part are coaxially arranged, and the inner diameter of the soldering lug is not larger than that of the through hole. According to the scheme, the problem that when an existing radiator pipe nozzle is matched with an opponent piece through brazing, brazing filler metal flows into the pipe nozzle and the sealing end face in the radial direction after being melted can be solved.

The invention relates to the technical field of semiconductor equipment, in particular to a wafer carrier manufacturing method and a wafer carrier structure, and the method comprises the steps: respectively carrying out the grinding and polishing of an upper surface and a lower surface; spin-coating a first photoresist layer on the lower surface, and patterning the first photoresist layer to obtain a preset pattern; the patterns comprise a first pattern annularly arranged at the circle center of the disc body and a plurality of second patterns annularly arranged on the first pattern at intervals; etching the lower surface for the first time under the shielding of the first photoresist layer to obtain a fixed groove; the side wall from one side to the other side of the fixing groove is inclined; spin-coating a second photoresist layer on the lower surface, and patterning the second photoresist layer to obtain a preset pattern; the patterns comprise a plurality of third patterns which are arranged in the fixing groove at intervals; etching the lower surface for the second time under the shielding of the second photoresist layer to obtain air holes; and the side wall from one surface to the other surface of the air hole is inclined, so that the flatness of the wafer carrying disc is improved.

The utility model discloses a motor rotor structure, which belongs to the technical field of motors, a motor rotor is arranged in a stator and comprises a shaft, the shaft is of a split structure and comprises a shaft head, a shaft body and a shaft tail which are sequentially connected end to end, the shaft head and the shaft tail are symmetrically arranged on two axial sides of the shaft body, and a liquid cooling loop is formed in an inner cavity of a motor. According to the motor rotor structure, the shaft head, the shaft body and the shaft tail are split, so that the centering of the bearing is ensured, the roughness and the hardness of the circumferential surface and the end surface matched with the bearing are also ensured, the abrasion of the bearing is reduced, and the service life of the bearing is further prolonged.

The invention relates to a volute machining process which comprises the following steps: step 1, mold removal and parting: in model software, firstly, a pipe orifice of a volute model is detached to form an independent pipe orifice model, then, a runner surface of a runner of the remaining volute model is extracted, a center line of an inverted buckle of the runner surface is found, and the center line of the inverted buckle of the runner surface is extracted; and the remaining volute model is split into two halves with the plane where the center line is located as a dividing plane, and therefore a first shell model and a second shell model are formed. 2, a first shell is machined according to the first shell model, and a second shell is machined according to the second shell model; 3, a pipe opening is machined according to the pipe opening model; and step 4, processing the assembly. According to the volute machining process, the volute is divided into the three sub-parts to be machined respectively, so that the flow channel can be exposed, the machining precision of the roughness and the profile tolerance of the flow channel can be guaranteed, the machining precision requirement of the volute flow channel is met, meanwhile, the machining efficiency of the volute is improved, and the machining difficulty and cost are reduced.

This invention relates to the field of semiconductor processing technology, specifically to a polishing pad dresser and its usage method. The polishing pad dresser provided by this invention includes a polishing pad with several protrusions on its surface, the protrusions being adapted to rub a wafer when the polishing pad rotates; a base located on the side of the polishing pad; a transmission assembly rotatably connected at one end to the base; a dressing assembly including a body and a dressing head, one end of the body being connected to the other end of the transmission assembly, and the other end being movably connected to the dressing head; a diamond dressing layer is provided at the end of the dressing head near the polishing pad; and a first air outlet is located on the side of the dressing head near the polishing pad. The first air outlet provided by this invention adds a method for adjusting the roughness of the polishing pad by blowing air, and by combining it with the diamond dressing layer, extends the service life of the diamond dressing layer.

This invention discloses a carbon-coated raspberry-like SiO2 2 Nanomaterials, including carbon layers and modified raspberry-like SiO2 encapsulated within the carbon layers. 2 Nanomaterials with a carbon layer thickness of 10–300 nm and a surface roughness Ra of 10–100 nm, modified raspberry-like SiO 2 The nanomaterials exhibit positively charged groups on their surface under acidic conditions and have a particle size of 10–300 nm. This invention also discloses the aforementioned carbon-coated raspberry-like SiO₂. 2 The preparation method of nanomaterials first involves preparing raspberry-like SiO₂ with different roughness through weak alkaline etching. 2 Nanomaterials, and then prepare raspberry-like SiO 2 The nanomaterials are modified, hydrothermally carbonized, dried, and washed. This invention features a simple, low-energy-consumption, and environmentally friendly preparation process, resulting in a carbon layer that coats raspberry-like SiO₂. 2 Nanomaterials have rough surfaces, large specific surface areas, are rich in hydrophilic oxygen-containing groups, and have controllable carbon layer morphology, which can promote the efficient hydrolysis of cellulose into sugars in low-acid aqueous systems.

This utility model discloses a painting device for a production line of slate-coated flooring, belonging to the technical field of slate-coated flooring production equipment. It includes a painting rack for supporting the slate-coated flooring, a fixed frame welded to the top of the painting rack, and multiple air inlets for air intake on the side of the fixed frame. Each of the multiple air inlets is equipped with a fan. A sliding groove is provided on the vertical inner wall of the fixed frame, and a filter plate frame for support is slidably installed inside the sliding groove. A filter plate for filtering air is installed inside the filter plate frame. A heating pipe for heating air is installed on the vertical inner wall of the fixed frame. This painting device for a production line of slate-coated flooring can improve air filtration capacity, prevent solid particles in the drying gas from directly adhering to the uncured paint film surface, avoid particle protrusions or pits, ensure the surface roughness of the flooring, and improve aesthetics and tactile feel.

The invention discloses a self-expanding particle gradation composition design and anti-seepage performance research method, which is characterized in that self-expanding particles with required sizes are accurately obtained through a screening instrument, and the passing rate of each particle size range is calculated on the basis of a Taibo method, so that the scientificity and rationality of particle distribution are ensured. And secondly, particles with different particle sizes are prepared and mixed to obtain target grading, so that the uniformity and stability of the particles are improved, and the uniformity and durability of the anti-seepage effect are ensured. Through experimental verification and repeated testing, grain composition is further optimized, it is ensured that the seepage-proofing performance in practical application is optimal, the engineering risk is reduced, and the overall engineering quality and safety are improved.

The present invention belongs to the field of size head processing technology, and in particular, relates to a size head processing technology, including loading, molding, unloading and cutting processes. The molding process is to start the hydraulic system to move the push head toward the size head blank, start the water pressure system to inject liquid into the injection hole so that the liquid pressure in the middle hole reaches a preset value, and the control system controls the drive motor to rotate so that the size head blank is gradually expanded and molded, and the push head gradually approaches the middle of the cavity to compensate for the deformation and thinning of the large head position. At the same time, the circumferential material leveling structure rotates the size head blank circumferentially to uniformly mold. When the molding is almost in place, the circumferential material leveling structure stops rotating the size head blank circumferentially, and the push head gradually moves, and the liquid pressure is continuously maintained until the size head is molded in place. The present invention molds the size head through liquid pressure, and at the same time, the push head gradually approaches the middle of the cavity to compensate for the deformation and thinning of the large head position, ensuring the uniformity, consistency and quality of the wall thickness of the size head after molding.

The utility model relates to the technical field of detection equipment, in particular to ball screw detection equipment which comprises a platform, a control screen, a fixing assembly and a detection assembly, the control screen, the fixing assembly and the detection assembly are all connected to the platform, and the control screen controls the fixing assembly and the detection assembly through a program; the fixing assembly comprises a linear guide rail A, a tailstock fixing plate, a center tailstock, a hollow motor base and a hollow motor, the linear guide rail A is fixedly connected to the upper end of the platform, the tailstock fixing plate is slidably connected to the linear guide rail A, and the center tailstock is fixedly connected to the upper end of the tailstock fixing plate. The detection assembly can move in the X direction and the Y direction, the position of the shaft end of the ball screw is determined through the edge finder measuring head, the roughness sensor is used for measuring the roughness of the machined shaft end, the control screen can set a roughness preset value and display a measured value, and a lathe machining tool is prompted to be replaced according to the measured value. And the machining roughness of the numerical control lathe is ensured.

The adhesive tape processing coating machine with the cleaning function comprises a supporting frame, a vertical frame, a machine body and an outer cover shell, the vertical frame is arranged on one side of the supporting frame, an installation frame is arranged on one side of a carrier roller and fixedly installed on the machine body, a third conveying roller is arranged on the installation frame, and a fourth conveying roller is arranged on the outer cover shell. And a dust suction cover is fixedly mounted at the top end of the interior of the mounting frame, an electric telescopic rod is fixedly mounted at the bottom of the mounting sleeve, and a gluing roller is fixedly mounted at the output end of the electric telescopic rod. Through the arrangement of the grinding wheel, the grinding wheel can grind defects such as protrusions and recesses on the surface of the adhesive tape, so that the surface is more flat and smoother, impurities such as dust, particles and greasy dirt on the surface of the adhesive tape are effectively removed, the surface is ensured to be clean, and a basis is provided for high-quality gluing; the roughness of the surface of the adhesive tape can be increased, so that the adhesive force of an adhesive tape coating is stronger, and the adhesive force and durability of the coating are improved.

The application provides a kind of based on multi-axis linkage's precision milling closed loop optimization and real-time control process of screw rod, including collecting workpiece geometric parameters, material properties and machine tool dynamics parameters, designing tool and fixture scheme, and setting initial machining parameters based on cutting database;Utilize NURBS curve to construct high-precision curved surface model of screw rod helical groove, optimize path through curvature adaptive discretization and quintic spline interpolation;Adopt real number coding genetic algorithm to iteratively optimize idle stroke path, shorten total path time and reversing frequency;Realize multi-axis synchronous control through inverse kinematics solution, and dynamically adjust tool inclination angle based on contact angle in real time;Use virtual simulation and finite element analysis to predict cutting force, thermal deformation and interference risk.The application generates continuous smooth multi-axis synchronous command, effectively reduces the positioning error of each axis, and dynamically corrects the tool inclination angle through the force feedback of the contact angle, effectively suppresses the cutting force fluctuation, and ensures that the roughness of helical groove tooth surface meets the requirements.

The invention relates to the technical field of hot-rolled seamless steel tubes, and discloses a skew rolling and multi-piercing rolling combined type common roller for an ultra-large-diameter seamless steel tube, which comprises an inlet section, a rolling belt and an outlet section which are connected in sequence, and the combined type common roller is provided with a central shaft hole; the inlet conical section, the rolling belt and the first outlet conical section are provided with knurls; an inlet section roller surface taper angle a-in of the combined type common roller inlet taper section and the outer surface of the rolling belt is 2.5-3.5 degrees, and an outlet first taper section roller surface taper angle a-out of the combined type common roller outlet first taper section and the outer surface of the rolling belt is 3-4.5 degrees. The outer surface of the combined common roller outlet second cone section and the outer surface of the roller outlet first cone section are respectively provided with an outlet second cone section roller face cone angle alpha of 3.5-5 degrees, and through the matched design of the guide arc section, the inlet taper, the outlet first cone section, the outlet second cone section and the rolling belt, the combined common roller outlet second cone section is formed. And the process technical requirement of multiple times of piercing and rolling production of the ultra-large-diameter seamless steel pipe on one production line is met.

The invention discloses a high-temperature-resistant and corrosion-resistant composite coating for the surface of a zinc pot roller and a preparation method, the composite coating comprises a WB-metal working layer and a WC-boride surface layer, and the components of the WB-metal working layer comprise W, B and metal elements; and the WC-boride surface layer comprises the following components: W, C and boride. The method comprises the following steps: firstly, pretreating a roll surface substrate, and preparing a working layer and a surface layer by adopting high velocity oxy-fuel spraying equipment; and the roller surface is brushed with confining liquid, and the high-temperature-resistant and corrosion-resistant composite coating on the surface of the zinc pot roller is obtained after low-temperature heat treatment. The composite coating is compact in microscopic structure and low in porosity, the bonding strength of the coating and a roller surface base body is high, and the composite coating has good comprehensive performance such as abrasion resistance, high-temperature corrosion resistance and adhesion resistance, meets the production requirements of a key spare part zinc pot roller of a hot-dip coating production line, and is particularly suitable for surface strengthening treatment of a hot-dip coating high-aluminum zinc aluminum magnesium production line zinc pot roller. The service life is prolonged, and the strip steel product quality is improved.