356results about How to "Improve the quality of workmanship" patented technology

The invention provides an intelligent monitoring system for the quality of a PCB solder paste printing process and a method. The system comprises a data acquisition module, a printing quality management database, a statistical analysis module and a light control module, wherein the data acquisition module is used for performing real-time acquisition of various parameter data of PCB printing solder paste, which is detected by an SPI detection system; the statistical analysis module is used for acquiring and analyzing the data acquired by the data acquisition module, judging whether the quality of the solder paste printing process is controlled or not according to an analysis result, and sending a signal representing that the quality of the printing process is out of control to the light control module when the quality of the solder paste printing process is out of control or tends to be out of control; and the light control module can control different warning lights to give a warning of specific out-of-control conditions. Through the system and the method, the defect that the quality of a printing process cannot be monitored in the prior art is overcome, the printing process can be monitored, and a warning can be given in time when that the printing process is out of control is found so as to reduce defects in solder paste printing.

The invention discloses a test method of residual stress of a silicon single crystal piece. Main test steps comprise preparing a three-dimensional strain rosette, a strain gauge, a detected silicon single crystal piece and the like, pasting the three-dimensional strain rosette, testing an initial value of each resistor of the three-dimensional strain rosette and recording the value, cutting a silicon chip to release a stress, testing each data of the three-dimensional strain rosette again and recording the data, processing the data, and analyzing and discussing a result. According to the invention, the three-dimensional strain rosette is taken as a strain sensor, a cutting method is employed to release a residual stress of the silicon chip, through employing an YE2539 high speed static strain indicator to measure reverse direction strain of the strain rosette tightly pasted on the silicon chip, size and direction of a residual stress of each point on the silicon chip can be calculated, and a unique test operation process of the silicon chip is formed. Test precision is high, speed is fast, and cost is low. A test result analysis shows that: total residual stress of a monocrystalline silicon piece is small, a residual stress at a circumference edge is large relative to an internal measuring point, a maximum residual stress of an unprocessed monocrystalline silicon piece is large relative to a processed monocrystalline silicon piece.

The invention discloses new large-scale industrialized technology for producing novel yeast extract series products 3,000 t/a by using beer yeast slurry as an initial raw material, and belongs to the technical field of preparing series biological products from yeast. The production steps comprise preliminary treatment, debitterizing process, controllable hydrolysis process, separation and refining, condensation or spray drying. The technology is characterized in that the waste beer yeast with low cost is used as the raw material, the technology combining a physical wall-breaking method, an automatic dissolution method and an enzymolysis method is provided, the hydrolysis ratio of beer yeast protein reaches 55 percent, and the total yield reaches 60 percent. The invention also discloses a biochemical controllable debitterizing process, which solves the technical bottlenecking problems of more impurities, heavy bitter taste and low yield of the yeast slurry raw material. Three series and more than 20 yeast extract series products are successfully obtained. The comprehensive utilization rate of the yeast slurry is over 90 percent; and the technology is typical environment-friendly, clean and resource-saving technology and has remarkable economic and social benefits.

The invention provides a method used for detecting microcracks of glass by a molecule colorant, belonging to a real-time detection method in the technical field of optical cold working; the method comprises the steps as follows: after chunk glass is roughly machined, the chunk glass is arranged statically for several tens of hours so as to release the stress; subsequently, the surface of the chunk glass is corroded by acid, coated by the molecule colorant and arranged statically for several minutes; the colorant molecules infiltrate the interior of the microcrack passage till the bottom end by the compatibility of the glass on the aqueous solution and the scattering nature of the colorant; and the floating color on the surface of the chunk glass is washed away by water and the shape and depth of the microcrack can be clearly displayed, thus providing reliable basis for removing the microcrack. The method has the active effects that HF corrosion is used for reinforcing the chemical and mechanic performance of the glass surface, natural high-strength characteristic of the glass is partly recovered, the limits of microcrack theory detection method are overcome, the process flow is simplified, the processing time is saved, the processing cost is reduced, and the working efficiency and process quality are improved.

The invention relates to a vacuum high-pressure casting process method for a wheel disc casting. The method comprises the following steps of: after melt casting is finished, sequentially and centripetally filling a model from a wheel flange to a wheel center through a broken ring-shaped runner and a tangential ingate with the assistance of vacuum; and after model filling is finished, jointly pressurizing by a pressure head and a pressure filling head which is positioned on an epitaxial slag ladle of the wheel center and maintaining the pressure till a casting is fully solidified to obtain a high-quality wheel disc casting which has the advantages of high-quality wheel flange model filling and no solidification contraction and blowhole defect on a wheel flange hot spot and a wheel center hot spot.

The invention relates to an enclosure for a continuous wall foundation pit formed by steel cylinders or steel plate piles adopting seal grooves and occlusion structures. The steel cylinders or steel plate piles adopting the seal grooves are connected to form the continuous pile wall so as to form the foundation pit enclosure, according to the steel cylinders or steel plate piles with the seal grooves, at least one seal groove is formed at the connecting positions of steel plates or piles of steel cylinder piles, the cross section of each groove is in a convex arc shape, a concave shape or a polygon shape, a matched pipe is inlaid in each groove, the steel plates or steel cylinder piles and the pipes in the grooves are jointly and independently tampered into the stratum, pipe cavities in the grooves are left or waterproof sealing materials are injected into the pipe cavities to serve as sealing layers at the connecting positions of the steel plates or the piles of the steel cylinder piles; the cross section of the connecting positions of the steel plates or the piles of the steel cylinder piles is in a hook shape or concave-convex matched or third filling block filling connecting shape; and one or more sealing grooves are formed in the pile connecting positions.

The invention relates to a thermoplastic polymer melt spun fiber with anti-mite and antibacterial functions and a preparation method thereof. The preparation method comprises the following steps: preparing a silver-loaded soda borosilicate ceramic powder which serves as an anti-mite and antibacterial component through a sol-gel method, performing surface modification on superfine ceramic powder through a coupling agent, granulating to prepare a high-concentration anti-mite and antibacterial master batch which takes a thermoplastic polymer as a matrix in a double-screw extruder, and finally, blending the anti-mite and antibacterial master batch with the thermoplastic polymer according to a certain ratio, and performing melt spinning to obtain the anti-mite and antibacterial fiber. The anti-mite and antibacterial fiber prepared by the method has obvious effects, is high in durability, high in washing resistance and high in safety.

The invention relates to the technical field of display and particularly relates to a light guide plate capable of utilizing a micro-penetration surface to collect light and a manufacturing method of the light guide plate as well as a backlight module and a display device. An emergent surface of the light guide plate is the micro-penetration surface; the micro-penetration surface comprises a plurality of micro-penetration points and the micro-penetration points are provided with convex surfaces; and the bottom surface of the light guide plate is a net surface and the net surface comprises a plurality of net points and the net points are provided with convex surfaces. The manufacturing method of the light guide plate comprises the steps of: presetting a micro-penetration point distribution pattern by a precision engraving machine; putting a micro-penetration surface die core base plate into a precision engraving machine; engraving the micro-penetration surface die core base plate into a micro-penetration face die core according to the micro-penetration point distribution pattern; assembling the micro-penetration surface die core and a light guide plate die core into a light guide plate die; and injecting and molding into the light guide plate by the light guide plate die. A micro-penetration surface design is adopted and directions of all scattering lights in the light guide plate can be adjusted by using the micro-penetration surface to collect the scattering lights; and the development brightness and the influence definition of a liquid crystal liquid screen are improved and the product quality is improved.

The invention discloses a steel cylinder pile or steel sheet pile with sealing grooves and occlusion structures. The steel cylinder pile or steel sheet pile is provided with the waterproof sealing grooves; at least one groove used for sealing is formed in the connecting positions of steel sheet piles or steel cylinder piles; the cross section of each groove is convex-arc-shaped, concave or polygonal; pipes with the same sectional area are inlaid in the grooves; the steel sheet piles or the steel cylinder piles and the pipes inside the grooves are rammed into a stratum together or separately; and after the steel pipes are pulled out, waterproof sealing materials are reserved in or injected into cavities inside the grooves so as to form waterproof sealing layers at the connecting positions of the steel sheet piles or the steel cylinder piles. The steel cylinder pile or steel sheet pile has the advantages that in the application of a steel structure continuous wall, a foundation and a foundation pit, particularly, the sealing structural steel cylinder pile is a rectangular steel cylinder pile, and rectangular steel cylinders are tightly arranged.

The invention provides an ADC cation exchange chromatographic purification method. The ADC cation exchange chromatographic purification method can be used for performing purification in a combined elution mode or an overload mode, control the DAR (drug antibody ratio) of ADC drugs within a target technology range and meanwhile achieve the effects of eliminating polymers. The ADC cation exchange chromatographic purification method is a novel ADC preparation and purification technique, reduces the production cost and risk, meanwhile, achieves control to the mole DAR of micromolecules/antibodies and polymers of the ADC drugs, is beneficial to development of ADC production processes with higher controllability, lower cost and lower risks, obtains products with higher quality and guarantees medication safety and therapeutic effects.

Provided is a reduction gear for an SCARA industrial robot. A motor is arranged on a forearm, the tail end of the forearm is connected with a ball spline mechanism through a bearing, and the motor outputs torque and rotating speed to a ball spline through a first level synchronous belt and a second level synchronous belt. According to the reduction gear for the SCARA industrial robot, an alternative solution of a harmonic drive is provided, a reducing mechanism with compound transmission through the second level synchronous belt is adopted, the barycener offset distance of the SCARA robot is reduced, and the improvement of the acceleration performance of the whole machine is facilitated; meanwhile, the reduction gear for the SCARA industrial robot has the advantages of being long in service face, high in precision, high in speed, stable in transmission, high in space utilization, low in heat productivity, low in noise and the like, the use performance is improved, and the cost of the whole machine is reduced.

The present invention provides method of raising binding force of chemical coating on the surface of NdFeB permanent magnet. The NdFeB permanent magnet is pre-coated in alkaline plating solution under ultrasonic action, and by means of the activation, cavitation and stirring of ultrasonic wave, one homogeneous and compact initial deposited layer is formed on the surface of the magnet, so as to raise the binding force of chemical nickel-base coating on the surface of the magnet obviously and reduce pores in the coating. The present invention also provides the technological process including deoiling and pickling to activate before plating, the ultrasonic pre-plating and the conventional chemical plating. The formed coating has high corrosion resistance, raised binding to the substrate and perfect protection on the NdFeB permanent magnet.

The invention discloses a realization method for film preparation by applying an atomic layer deposition technology. A different ALD technological mode of a vacuumizing mode or a variable flow mode is used for changing an intake quantity of sweeping gas in a reaction cavity to form disturbance of an airflow field in the cavity, so that the sweeping effect on a surplus reaction source and a reaction byproduct can be effectively improved, the process time of film growth period is shortened, the productivity is improved, the parasitic CVD reaction can be reduced on the basis, the ALD process quality is improved, and the film uniformity is improved.

The invention provides a manufacturing method of a luminescent device, a luminescent device, and a display device. The manufacturing method of the luminescent device includes a step of forming a luminescent layer on a substrate, including: depositing a plurality of different quantum dot solutions on the substrate successively to form a plurality of layers of different quantum dot films in a stacked manner, and forming a luminescent layer through by the plurality of layers of different quantum dot films together, wherein any adjacent deposited two quantum dot solutions include the first quantum dot solution and the second quantum dot solution; the first quantum dot material as the solute in the first quantum dot solution is not dissolved in the solvent of the second quantum dot solution; and the second quantum dot material as the solute in the second quantum dot solution is not dissolved in the solvent of the first quantum dot solution. The scheme of the manufacturing method of a luminescent device can continuously prepare a plurality of layers of quantum dot films with relatively higher homogeneity to enable the luminescent device of the plurality of layers of quantum dot films to give out light normally.

The present invention provides a magnetron sputtering device and a magnetron sputtering method. The magnetron sputtering device comprises a reaction chamber, a sputtering power supply and a driving source, a target is arranged at the top of the reaction chamber, and the sputtering power supply is electrically connected with the target, and is used to output a sputtering power to the target during the magnetron sputtering process. A pedestal is arranged in the reaction chamber, is located below the target, and is used to bear a processed workpiece. The driving source is used to drive the pedestal to rise or drop. Moreover, the magnetron sputtering device also comprises a control unit used for controlling the driving source to drive the pedestal to rise during the magnetron sputtering process, so that the spacing between the target and the pedestal is always kept at a predetermined value and does not change. The magnetron sputtering device provided by the present invention uses the control unit to control the driving source to drive the pedestal to rise during the magnetron sputtering process, so that the spacing between the target and the pedestal is always kept at the predetermined value, does not change, and is always kept at an optimal value, and accordingly, the thin film uniformity and deposition rate can be improved.

The invention relates to an automatic grinding and polishing machine for engine crankshafts. The automatic grinding and polishing machine comprises a front body and a rear body. A motor and a transmission adjusting device are sequentially disposed at the left end of the front body. An output shaft of the motor is connected with the transmission adjusting device. A tail positioning device is disposed at the right end of the front body. A crankshaft spindle polishing device is disposed between the transmission adjusting device and the tail positioning device. A first air cylinder is disposed on the crankshaft spindle polishing device. A crankshaft spindle clamp controller which is connected with the first air cylinder is further disposed on the front body. A crankshaft connecting rod polishing device and a crankshaft connecting rod clamp controller which are connected are disposed on the rear body. A second air cylinder is disposed on the crankshaft connecting rod polishing device. By the automatic grinding and polishing machine which is simple to operate and high in work efficiency, crankshaft spindles and crankshaft connecting rods can be polished simultaneously, quality requirements of crankshaft polishing can be guaranteed, and consistency of the spindles and the connecting rods can be increased.

The invention discloses a capacitive control screen with a three-dimensional via hole and a manufacturing method thereof. The capacitive control screen comprises a first conducting film layer plated on glass or a PET (polyethylene terephthalate) film, and an insulating layer and a second conducting film layer which are sequentially arranged on the first conducting film layer, the first conducting film layer and the second conducting film layer are provided with corresponding circuits, the insulating layer is provided with a via hole, and a conducting medium used for conducting the circuits is filled in the via hole. According to the capacitive control screen disclosed by the invention, the via hole is manufactured in the insulating layer without damaging the conducting films, so that the manufacturing process of the capacitive control screen is greatly improved.

The present invention relates to a heating chamber and semiconductor processing equipment, the heating chamber comprises a plurality of heating zones, heating units in one-to-one correspondence to the heating zones, a drive unit, a detection unit, a control unit and adjustment units in one-to-one correspondence to the heating units, the drive unit is used for driving the detection unit to move in a plane parallel to a wafer and transmitting a position signal of the detection unit in real time to the control unit, the detection unit is used for detecting in real time the wafer temperature in correspondence to the plurality of heating zones and transmitting the temperature to the control unit, the control unit is used for judging which one of the heating zones, the temperature transmitted by the detection unit belongs to, according to the position signal transmitted by the drive unit and judging whether a bias exists between the temperature and a preset temperature, and if the bias exists between the temperature and the preset temperature, the adjustment unit in correspondence to the heating zone, to which the temperature belongs, is adjusted so as to calibrate the output power of the corresponding heating unit. The heating chamber may improve the heating accuracy and the temperature uniformity and lowers the wafer temperature measurement difficulty.

The invention discloses a full-automatic printing ink plate printing and drying device. The device comprises a box body, a first fixing table and a second fixing table are fixedly connected to the twosides of the bottom of the inner wall of the box body respectively, the top of the first fixing table and the top of the second fixing table are rotationally connected with a first straight gear anda second straight gear respectively, a first belt wheel is fixedly connected to the front part of the second straight gear, and a first motor is fixedly connected to the bottom of the inner wall of the box body and on the left side of the second fixing table. The invention relates to the technical field of automatic mechanical equipment. The full-automatic printing ink plate printing and drying device solves the problems that an existing equipment plate printing process is complex and cannot realize stable printing, the position deviation is easy to occur, the equipment is relatively large inabrasion and ink plate printing can not be carried out on a large scale; and the purposes of carrying out ink plate printing on the parts and buffering and protecting the parts are achieved, damage caused by too large stress on the equipment is avoided, the parts with different thicknesses can be printed, the practicability of the equipment is effectively improved, and the equipment is convenientto maintain.