11267results about How to "Improve processing quality" patented technology

A voice enhancement logic improves the perceptual quality of a processed signal. The voice enhancement system includes a noise detector and a noise attenuator. The noise detector detects and models the noise associated with rain. The noise attenuator dampens or reduces the rain noise from a signal to improve the intelligibility of an unvoiced, a fully voiced, or a mixed voice segment.

An ultrasonic-magnetorheologic polishing method features that the mixture of abrasive material and magnetorheologic liquid is filled in a small-diameter rotary hollow polishing head and a magnetic field is applied to it to make the magnetorheologic liquid become flexible polishing liquid on the polishing head while the ultrasonic vibration is applied to it for higher polishing effect. Its apparatus is composed of polishing head, ultrasonic generator, and electromagnet.

A plasma processing chamber having advanced coating for the showerhead and for an extended bottom electrode. The extended bottom electrode can be formed by one or more of the focus ring, cover ring, and plasma confinement ring. The extended electrode can be formed using a one-piece composite cover ring. The composite cover ring may be made of Al₂O₃ and include a Y₂O₃ plasma resistant coating. The plasma confinement ring may include a flow equalization ion shield that may also be provided with the plasma resistant coating. The plasma resistant coating of the extended electrode may have elements matching that of the showerhead.

A flexible apparatus for locating and clamping a thin-wall workpiece with 3D shaped surface at multiple points is composed of two rectangular frames linked by scrwe bolts and with the regulating screws on their four sides, 4 lines X6 columns elastic sleeve tubes arranged uniformly on the netted structure in said frame and two barrier plates parallel in said frames and with regulating screws, locating pins and 4 locking tensional plates.

An enhancement system improves the perceptual quality of a processed speech. The system includes a delay unit that delays a signal received through a discrete input. A spectral modifier linked to the delay unit is programmed to substantially flatten the spectral character of a background noise. An adaptive filter linked to the spectral modifier adapts filter characteristics to match a response of a non-delayed signal. A programmable filter is linked to the delay unit. The programmable filter has a transfer function functionally related to a transfer function of the adaptive filter.

The invention discloses equipment for manufacturing a large-size metal part in a high energy beam additive manufacturing mode and a control method of the equipment. The equipment comprises a work cavity, a worktable, a control system, a high energy beam scanning generator, a powder storage hopper, a powder laying device and a gas purification module, wherein the worktable is composed of a forming cylinder and a powder recycling cylinder, and the upper surface of the forming cylinder and the upper surface of the powder recycling cylinder are coplanar and form a work plane. The control system controls the high energy beam scanning generator and the powder laying device to move opposite to the worktable in the powder laying direction. The equipment for manufacturing the large-size metal part in the high energy beam additive manufacturing mode and the control method of the equipment largely shorten the waiting time caused by pre-installation of a powder bed when a common laser/electron beam selective melting technology is used for processing a part, thereby obviously improving the forming efficiency of high energy beam additive manufacturing. Through the application of the equipment for manufacturing the large-size metal part in the high energy beam additive manufacturing mode and the control method of the equipment, a metal part with a meter-grade size, high performance, high accuracy and a complex structure can be manufactured efficiently and rapidly.

The invention relates to an intelligent force control robot grinding system. The intelligent force control robot grinding system comprises a computer, an industrial camera, a robot, a robot controller, a calibration and compensation system, a safety protection unit, a force sensor and an automatic knife changing system. The computer is connected with the industrial camera. The robot controller is connected with the computer, the robot, the calibration and compensation system, the safety protection unit, the force sensor and the automatic knife changing system. A method comprises the steps that the computer receives workpiece scanning data collected by the industrial camera, generates a knife path and converts the knife path into the robot posture and the tail end path; calibration and compensation are carried out; the robot controller controls all joints to move while the robot posture and the tail end path are adjusted. Hardware of a high-precision force control grinding system is achieved, the path self-calibration and online compensation technology is adopted, and the machining of a complex hook face with the high requirements for machining precision and surface smoothness can be finished.

A method and laser system effect rapid removal of material from a workpiece by applying heating energy in the form of a light beam to a target location on the workpiece to elevate its temperature while maintaining its dimensional stability. When the target portion of the workpiece is heated, a laser beam is directed for incidence on the heated target location. The laser beam preferably has a processing laser output that is appropriate to effect removal of the target material from the workpiece. The combined incidence of the processing laser output and the heating energy on the target location enables the processing laser output to remove a portion of the target material at a material removal rate that is higher than the material removal rate achievable when the target material is not heated.

The invention discloses a water-soluble total-synthesis metal working fluid and application thereof. The working fluid is prepared from the following raw materials in percentage by weight: 1wt%-30wt% of a lubricant, 1wt%-40wt% of a corrosion inhibitor, 1wt%-40wt% of organic amine, 1wt%-20wt% of a cleaning agent, 1wt%-20wt% of a coupling agent, 0.5wt%-5wt% of an antifoaming agent and the balance of water. The working fluid can form water-based steam with anti-rust property in an induction manner in the use procedure, so that the problem of rusting caused by steam which is easily generated by a closed machine tool is solved, and therefore, the working fluid is suitable for a high-precision machine tool, especially a numerical control machine tool with a closed structure.

The invention discloses a method for thermal deformation error compensation of a digital control gear hobbing machine, which comprises the following steps of: 1, adopting temperature and displacement sensors to detect variable values of a temperature and a thermal deformation displacement on line when the digital control gear hobbing machine is in the course of working; 2, using a fuzzy clustering analytic method to calculate linearly dependent coefficients of variables of the temperature and the displacement, performing classification and optimization on the variable of the temperature, and determining the displacement variable Xi for model building and optimized p temperature independent variables T1, T2, T3, ..., and Tp; 3, adopting a multiple linear regression-least square method to establish a mathematic model of thermal errors and temperature variables; and 4, realizing online real-time compensation of thermal deformation errors of the digital control gear hobbing machine by using a zero programming system. The method solves thermal deformation error problems of a processing gear of the digital control gear hobbing machine, and by performing the online real-time error compensation on the digital control gear hobbing machine, the method improves the gear processing quality, the accuracy and the efficiency, reduces the rejection rate, saves the cost and shortens the processing cycle.

The invention discloses an assembled integral building and a construction method thereof. The assembled integral building comprises a reinforced concrete wall and floor slabs, wherein the reinforced concrete wall is formed by hoisting and assembling prefabricated composite insulating wallboards integrally at a construction site; a board body of each prefabricated composite insulating wallboard comprises a structure layer, an insulating layer and a protective layer from the inside to the outside in turn; a reinforcement cage is arranged in the structural layer; steel meshes are arranged in the concrete of the protective layer; the structural layer, the insulating layer and the protective layer are anchored together by inserting connecting members in a dotted distribution; the left and right edges of the protective layer and the insulating layer protrude out of the structural layer; a lower edge of the protective layer extends downward to form a bulged opening; the top parts of the protective layer and the insulating layer upward protrude out of the structural layer; and an upper edge of the protective layer is provided with a notch which corresponds to the bulged opening of the prefabricated composite insulating wallboard adjacent to an upper layer. The building overcomes the defects of erecting shuttering on site, binding steel bars and concreting in a traditional construction method, speeds up the construction, and lowers the construction cost; and the construction quality of the building structure can be sufficiently guaranteed.

The invention discloses an assembled integral shear wall structure system and a construction method thereof. Prefabricated composite wallboards are hoisted and assembled integrally at a construction site; a board body of the prefabricated composite wallboards comprises a structural layer, an insulating layer and a protective layer from the inside to the outside in turn; a reinforcement cage is arranged in the structural layer; the insulating layer is an extruded polystyrene foam plastic board; steel meshes are arranged in the concrete of the protective layer; and anchor bolts in a dotted distribution are connected among the structural layer, the insulating layer and the protective layer. Vertical seams and horizontal seams of prefabricated composite walls adopt structural self-waterproofing, so that common quality problems such as leakage and cracks and the like in a traditional process are solved. The prefabricated composite walls simplify construction processes, speed up the construction, and lower the construction cost. Furthermore, products prefabricated in a factory have uniform specifications and unified quality, so that the construction quality of a building construction can be sufficiently guaranteed; the industrialization, standardization, and generalization of the building walls are realized; and the products can be widely applicable to the construction of reinforced concrete buildings in the construction industry.

The invention relates to a prefabricated reinforced concrete beam-column joint, in particular to a single-layer prefabricated assembly type reinforced concrete beam-column joint. In order to solve the problem that the connection integrity of existing prefabricated beams and prefabricated columns is hard to guarantee, the prefabricated joint for one-piece casting manufacturing of a column section and part of beam sections is provided according to the concept of the point of inflection. The single-layer prefabricated assembly type reinforced concrete beam-column joint is formed by overall manufacturing of a vertical column section (1) and joint superposed beam sections (2) in a factory for prefabrication. A manufacturing method comprises the steps of beam-column longitudinal bar and stirrup binding, connector pre-burying, formwork erecting and concrete pouring and curing. The height of the vertical column section (1) of the joint is 1/2 of the storey height, and the length of each joint superposed beam section (2) is 1/3 of the span of adjacent columns. The vertical column section (1) comprises a pouring section (1-1), a concrete filled steel tube connector (1-2), a steel tube connector (1-3) and column section longitudinal bars (1-4). Each joint superposed beam section (2) comprises a groove-shaped pouring section (2-1), inverted-T-shaped structural steel connectors (2-2) and a reinforcement cage framework (2-3). The single-layer prefabricated assembly type reinforced concrete beam-column joint is applied to the construction industry.

The invention discloses an aluminum-magnesium alloy cutting fluid which consists of the following components in percentage by weight: 5-10 percent of extreme pressure anti-wear additive, 10-30 percent of lubricating agent, 10-20 percent of anti-rusting agent, 1-3 percent of pH regulator, 0-2 percent of hard water resisting agent, 0-1 percent of settling agent, 0.1-0.5 percent of defoaming agent, 1-5 percent of sterilizing agent and the balance of water. According to the aluminum-magnesium alloy cutting fluid, excellent lubricating and wear resisting performances, cleaning and cooling performance and rust and corrosion resisting performances are obtained, thus cutting bumps can be avoided, a cutter is effectively protected and the processing quality is improved; more heat generated in the processing process is taken away, so that the temperature of the processing surface is reduced and the defects of the curling and the deformation of workpieces caused by high temperature, flammabilityof scrap magnesium at high temperature and the like are effectively overcome; and a processing technique is simplified, and thus the processing period is shortened and the production efficiency is increased.

The invention relates to the field of semiconductor device manufacture equipment, and especially relates to a classification and detection method of wafer appearance defects. The method comprises the following steps: S1, screening to obtain a wafer image; S2, performing edge extraction on the wafer image to calculate the edge width; S3, segmenting out wafer region of interest; S4, performing appearance defect detection on the wafer region of interest; and S5, performing classification on wafer appearance defects. The method provided by the invention helps to improve the processing efficiency and quality of wafers.

The invention provides a kinematics control method for complex-curved-surface five-axis numerical control machining cutter vectors, belongs to the field of complex-curved-surface five-axis numerical control machine took precise and efficient machining, and particularly relates to a kinematics control method of cutter shaft vectors in the complex-curved-surface five-axis numerical control machining process. According to the kinematics control method of the cutter vectors, on the basis that a complex-curved-surface parametric equation is determined, the function relationship between the cutter shaft vectors and machining track curved line parameters can be established. Then, a motion parameter calculation method for a five-axis numerical control machine tool rotating feed shaft is established, so an angular velocity calculation result and an angular acceleration calculation result of the rotating feed shaft can be obtained. Finally, smoothing is carried out on the cutter shaft vectors to ensure that the rotating feed shaft of the machine tool moves smoothly and achieve the kinematics control over the cutter shaft vectors. The kinematics control method for the complex-curved-surface five-axis numerical control machining cutter vectors is wide in application scope, effectively improves machining quality of a complex curved surface, and gives better play to the performance of the machine tool.

The invention relates to a method for cutter-axis vector fairing of complex curved surface five-axis numerical control machining based on kinematical constraints, which belongs to the field of precise and efficient processing of complex curved surface five-axis numerical control machining, and particularly relates to a method for cutter-axis vector fairing based on machine tool kinematical constraints in the process of complex curved surface five-axis numerical control machining. The method is characterized by establishing a machining tool swivel feeding shaft angle optimized mathematical model on the basis of determining a cutter-axis fairing adjustment interval on a processing track curve and determining a discrete point according to the cutter step length, carrying out optimization on the corresponding machining tool swivel feeding shaft angle of the discrete point, and determining a corresponding coordination calculation method of a cutter-axis vector; then calculating the rotation angle of the cutter-axis vector opposite to the curved surface normal vector corresponding to the discrete point; and finally, carrying out fitting on the acquired discrete processing track normal vector angle, thereby acquiring a cutter-axis vector function for fairing, and ensuring a rotation axis of a machine tool to be smooth in motion. The method provided by the invention realizes smooth motion of the rotation axis of a five-axis numerical control machine tool, is wide in application range, and effectively improves the processing quality of the complex curved surface.

The invention discloses a method for generating interference-free flat-end milling cutter process path along the ridge direction of transitional surfaces. The method comprises the following steps: (1) initial machining tool path is set, a tool is processing along the ridges of transitional surfaces, a current tool contact is calculated to obtain effective curvature of the machining tool at the tool contact; (2) curvature interference analysis of transitional surface machining is carried out according to the effective curvature of the machining tool at the tool contact, tool bottom interference is analyzed, and the angle of the tool is deflected at the tool contact to obtain interference-free tool posture; (3) parameter calculation is carried out on the adjusted tool path so as to obtain step-length and cut row distance; and (4) adjacent tool path lines are calculated, including calculation of adjacent tool contacts and calculation of tool location data, and interference-free tool path is finally obtained. By the method, automatic planning of interference-free tool path can be realized; large cut row distance is obtained; cutting efficiency is high; machining surface roughness is low; surface fairness is good; and problems of low cutting efficiency, poor machining surface quality and the like by machining of a ball-end milling cutter are solved.