19results about How to "Reduce Process Risk" patented technology

The invention discloses a numerical control machine tool operation control system and a double-station sawing and drilling integrated machine tool, and relates to the technical field of numerical control machine tool operation. A multi-axis linkage state, a gas cylinder stress state, vibration frequency, cutting force and deformation data are acquired in real time through a data acquisition module; the dynamic modeling module constructs a digital twinborn model by using finite element analysis and real-time sensing data, and accurately simulates stress dynamic change and deformation trend; the intelligent error compensation module dynamically evaluates the multi-axis linkage precision by analyzing the machining data, generates an error compensation instruction and optimizes the operation parameters of the machine tool; the closed-loop feedback control module adjusts the cutting speed, the feeding depth and the clamping force in real time through a fuzzy logic algorithm, a closed-loop adjusting mechanism is formed, the machining precision and stability are greatly improved, the machining error and the workpiece surface damage risk are reduced, and the machining quality and efficiency of complex workpieces are effectively improved.

The invention relates to the technical field of rewiring structures, and discloses a preparation method of a rewiring structure and the rewiring structure, and the method comprises the steps: providing a semiconductor substrate; forming a barrier layer, a seed layer and a photoresist layer on the surface of one side of the semiconductor substrate; exposing and developing the photoresist layer to form a via hole window and a wiring window on the photoresist layer, and exposing the seed layer from the via hole window; forming a first metal layer on the seed layer exposed by the via hole window; removing part of photoresist reserved in the wiring window; forming a second metal layer on the first metal layer and the seed layer exposed by the wiring window; removing the photoresist layer, removing the seed layer and the barrier layer which are not covered by the first metal layer, and removing the seed layer and the barrier layer which are not covered by the second metal layer to form a via hole and a wiring layer; and forming a plastic package layer on the surface of one side of the semiconductor substrate to form a rewiring structure. The alignment deviation of the wiring layer and the via hole can be eliminated, so that the I / O density is improved.

This utility model relates to the technical field of injection molding parts processing equipment, and discloses an injection molding parts flattening and shaping mechanism, including a base and an injection molding part. A support frame is fixedly connected to the top of the base, and a flattening machine is slidably connected to the top of the support frame. A flipping mechanism is provided at the top of the base, and a clamping mechanism is fixedly connected to the left end of the flipping mechanism. The clamping mechanism includes a fixing block, the right end of which is fixedly connected to the left end of the flipping mechanism, and a motor is fixedly connected inside the fixing block. In this utility model, the motor drives the gear to rotate, causing the rack plate to slide, so that the L-shaped plate moves the square plate to achieve initial clamping. Multiple through holes, bolts, nuts, positioning rods, and clamping rods of the component work together. Appropriate through holes can be selected to install bolts according to the shape of the part, adapting to injection molding parts of different shapes and improving the accuracy and efficiency of clamping and positioning.

This application discloses a vision-based sheet metal processing control system and method, relating to the field of vision inspection. The system includes: predicting stress distribution during processing based on initial processing path data to obtain predicted stress distribution data; adjusting and evaluating processing parameters based on the predicted stress distribution data to obtain a preliminary processing control parameter set; acquiring real-time processing environment data; identifying environmental factors affecting the predicted stress distribution data to obtain temperature and humidity-related material deformation influencing factors; performing environmental adaptability correction on the preliminary processing control parameter set to obtain environmental processing control parameter data; constructing a real-time processing control model based on the environmental processing control parameter data to obtain a dynamic optimization control model for sheet metal processing; and deploying the dynamic optimization control model to the machine tool control equipment to execute sheet metal processing control. This application improves the efficiency of sheet metal processing control.

The solid-liquid phase change cavity structure comprises a phase change box body, a phase change cavity is formed in the phase change box body, a small stand column is arranged in the phase change cavity, a pouring hole is formed in one end of the bottom of the phase change box body, an exhaust hole is formed in the other end of the bottom of the phase change box body, and the pouring hole and the exhaust hole are connected to the phase change box body. The upper end of the phase change box body is covered with a cover plate, the pouring hole and the exhaust hole are further connected to an adapter, the stand column is directly milled, the machining cost of foamed aluminum is removed, and the machining risk is reduced; the upper surface of the cavity stand column and the periphery of the cavity are all brazed with the cover plate, contact is good, thermal resistance is small, the heat conductivity coefficient is high, pouring holes in the cover plate are not directly machined any more, an adapter is adopted for extending a pipeline, and the thickness of raw materials is reduced by at least 8 mm; a pouring hole welding plug is changed into a self-made aluminum screw and a silicon rubber O-shaped sealing ring, the machining cost is similar, poor pores caused by paraffin volatilization in the welding process are avoided, and the percent of pass is increased. And the welding cost is reduced.

This utility model discloses a device for recovering and utilizing waste heat from the overhead steam of a low-temperature methanol washing and regeneration tower, belonging to the field of energy-saving technology. The device includes a primary heat exchanger, a secondary heat exchanger, a primary flash tank, and a secondary flash tank, wherein the primary flash tank is installed on the primary heat exchanger, and the secondary flash tank is installed on the secondary heat exchanger. This utility model replaces the traditional steam heating method with heat pump distillation, utilizing the latent heat of the overhead steam and the compressor's electrical energy to power the low-temperature methanol tower, thus achieving a change in heating method, significantly reducing steam and cooling water consumption, and achieving the goal of energy saving and efficiency improvement.

The utility model discloses a non-hollowed-out flaked graphite boat, which relates to the technical field of photovoltaic solar energy and comprises a graphite boat outer sheet. The graphite boat further comprises graphite boat inner pieces, graphite clamping points, first fixing parts and second fixing parts, wherein the first fixing parts are used for fixing the first boat lugs and the third boat lugs and fixing the fourth boat lugs on the graphite boat inner pieces, and the second fixing parts are used for fixing the graphite boat outer pieces and the graphite boat inner pieces. According to the device, the graphite boat is designed into a mode of combining the graphite boat outer piece and the graphite boat inner piece, so that the process risk of customers is reduced, the generation mechanism of graphite boat marks and scratches is eliminated from the source, an inner frame and chamfers of an original mechanism are removed, two processing procedures in an original production process are optimized, the processing cost is greatly reduced, and the production efficiency is improved. Compared with the prior art, the processing time is saved, while the structure is optimized, the production capacity is improved, the thickness of the boat piece is changed from 2.5 mm to 4mm of the outer piece and 1.7 mm of the inner piece, and the loading capacity of the silicon piece is improved by 10%.

The invention provides a strain for converting CO2 into a single-cell protein and a method for electrosynthesizing the single-cell protein by using a strain microorganism, and belongs to the technical field of microorganism and green biosynthesis. The preservation number of the strain is CCTCC (China Center For Type Culture Collection) NO: M20232317, and the strain can grow by using CO2 as a unique carbon source and can be used for microbial electrosynthesis of single-cell protein; the invention further relates to an adjustable single-chamber microbial electrosynthesis amplification reactor, the conductive baffle is added between the two electrodes, interference of active oxygen is reduced, the efficiency of a carbon sequestration reaction is improved, the production rate and the protein content of single-cell protein are remarkably improved, the amino acid content of the obtained single-cell protein is kept to be 30% or above, and the yield of the single-cell protein is increased. The concentration of the fructan as an added-value product is about 0.42 mM, and the method has good practicability.

The invention belongs to the technical field of wind power equipment machining, and provides a circumferential weld joint welding heat preservation device and a welding method in wind power equipment machining. The heat preservation shell comprises a first shell body and a second shell body which are connected with each other. A first connecting piece is arranged at the end part of the first shell, and a second connecting piece is arranged at the end part of the second shell; a first pressure release valve is arranged on the first shell, and a second pressure release valve is arranged on the second shell; during welding, the first shell and the second shell are separated at the joint, a welding gun is inserted into the joint of the first shell and the second shell for welding, welding of the welding gun and closing of the first shell and the second shell after welding are met through closing of the first shell and the second shell at the joint, and the purpose of continuous heat preservation is achieved; by means of the heat preservation shell, heat generated by welding is used for directly conducting heat preservation on a welding seam, the heating link is replaced, on the basis that resources and cost are saved, a good working environment is provided, and the machining risk is reduced.

The utility model relates to the field of wood rotary cutters, in particular to a feeding device of a wood rotary cutter. Comprising a machine body, a base is installed on the lower surface of the machine body, a cutting shaft is installed in the machine body, a transmission shaft is installed on the inner wall of the base, an auxiliary structure is arranged on the side, away from the machine body, of the base and comprises two fixing blocks, and the two fixing blocks are fixedly connected with the base; connecting frames are slidably connected to the inner walls of the fixing blocks, inserting rods are slidably connected to the sides, away from each other, of the two fixing blocks, the inserting rods are slidably connected with the connecting frames, two rotating shafts are rotatably connected to the sides, close to each other, of the two connecting frames, and rolling shafts are fixedly connected to the arc surfaces of the rotating shafts. The surfaces of the two rolling shafts are in transmission connection with two transmission belts, and a plurality of limiting blocks are arranged on the surfaces of the transmission belts. The feeding device of the wood rotary cutter has the advantages that wood can be conveniently fed, and the machining risk is reduced.

The invention provides a PCB copper-clad plate pressing process, and relates to the technical field of electronic manufacturing, and the process comprises the following steps: S1, sampling a prepreg; s2, detecting the prepreg samples, recording TG values of all the samples, establishing a detection record table, and recording the TG value and detection conditions of each sample in detail; s3, the detected actual TG value is compared with the TG value of the prepreg factory identification, and the prepregs are classified and marked according to the comparison result; s4, batch processing is carried out on the prepregs with the TG values having deviation, so that the TG values of all the prepregs are restored to the factory state; and S5, after it is confirmed that the TG values of all the prepregs are restored to the factory state, setting specific parameters of the pressing machine according to pressing process parameters provided by a prepreg manufacturer. The PCB copper-clad plate pressing process aims at solving the key technical problems existing in the traditional process, and the stability of the pressing process and the reliability of the product are improved.

The present application relates to alloy structural steel continuous casting and heat treatment technical field, and disclose a kind of to improve 40Cr series alloy structural steel end quenching stability of continuous casting speed and two cold water distribution synergic process, including S1 steel component precision control, S2 continuous casting equipment pretreatment, S3 continuous casting speed and two cold water distribution synergic adjustment steps, S4 continuous casting process synergic monitoring steps, S5 subsequent heat treatment adaptation steps and S6 process optimization and feedback steps, the process has realized that end quenching stability is greatly improved: by setting the speed (0.80-0.95 m / min) according to the grade of billet specification, it is dynamically coordinated with two cold water distribution (0.18-0.24 L / kg) and superheat calibration, J9 end quenching value fluctuation is strictly controlled at ≤3HRC, end quenching qualified rate is ≥96%, completely solve the core pain point of traditional process end quenching fluctuation, low qualified rate.

The invention provides a semiconductor structure and a preparation method thereof. According to the invention, by optimizing the device structure and setting the distance between two adjacent storage tubes to be smaller than the preset distance threshold, the area of the device is reduced; the source regions of the storage units are connected through the doping layer to form the source line, and only one leading-out structure needs to be formed at one end of the source line, so that the preparation process of a plurality of source contact structures is avoided, and the process risk is reduced; each drain region is led out through a drain contact structure, and the drain contact structures of the storage units are connected to form a bit line. The source lines and the bit lines are vertically distributed, so that the process feasibility is improved, and the device area is reduced.

This invention discloses a wastewater treatment safety management method and system based on nano-microbubble technology, belonging to the field of safety management technology. It involves real-time acquisition of water quality signals from the target wastewater treatment unit, calculation of the water quality signal disturbance entropy, and projection of this entropy onto a preset bubble disturbance trajectory library. The degree of agreement between the current water quality fluctuation and the trajectory library is then calculated. Based on the comparison of the agreement with a preset threshold, the water quality fluctuation state is divided into abnormal and unknown states. In the unknown state, the normality of the state is calculated to further determine whether the current water quality fluctuation is abnormal and whether to trigger a safety management alarm. Thus, when nano-microbubbles cause fluctuations, the existence of process risks can be determined based on the actual situation, avoiding frequent false alarms and misoperations, thereby reducing energy waste and process disturbances. Simultaneously, this method avoids masking true water quality anomalies, promptly identifies potential safety hazards, and ensures the safety and stability of the wastewater treatment process.

The utility model belongs to the technical field of clamping and cutting, and particularly relates to a floating clamping device of a pipe cutting machine, which comprises a pushing mechanism and a clamping mechanism which are arranged at a feeding end of the pipe cutting machine, the pushing mechanism is movably connected with a rack of the pipe cutting machine, the clamping mechanism comprises a mounting frame, an upper sliding plate, a lower sliding plate and a cylinder, and the cylinder is arranged in a hollow structure of the mounting frame. The clamping mechanism further comprises an upper clamping head and a lower clamping head which clamp the free end of the steel pipe together, the upper clamping head and the lower clamping head are respectively provided with counterbores matched with the through holes, the upper clamping head is detachably connected with the upper sliding plate through fastening bolts, and the lower clamping head is detachably connected with the lower sliding plate through fastening bolts. The pipe cutting machine has the beneficial effects that the clamping mechanism is additionally arranged, so that the end part of a pipe to be cut is effectively fixed, the cutting quality is further improved, and the processing risk is reduced.

The application provides a memory cell structure of a static random access memory, comprising a transistor cell, the transistor cell comprising a first transfer transistor and a first complementary field effect transistor with common gate arranged in sequence along a first direction, and further comprising a second complementary field effect transistor with common gate and a second transfer transistor arranged in sequence along a second direction, a channel of the first transfer transistor is formed by a first fin structure, a channel of the first complementary field effect transistor with common gate is formed by a second fin structure, a channel of the second complementary field effect transistor with common gate is formed by a third fin structure, and a channel of the second transfer transistor is formed by a fourth fin structure, the first direction is parallel to the second direction, compact device arrangement, reduced area occupied, and manufacturing cost is saved. The application further provides a memory.

The utility model relates to the technical field of semiconductor, disclose a kind of interconnection structure and semiconductor power module. The interconnection structure includes: substrate, at least one power chip and connecting key;Power chip includes at least one layer of first metallization layer arranged on upper surface and at least one layer of second metallization layer arranged on lower surface;The surface of substrate is provided with first active plating and / or first planarization surface, and second metallization layer is interconnected with first active plating and / or first planarization surface;The surface of connecting key connects the upper surface of power chip and substrate. By the above-mentioned mode, the utility model can save cost and reduce process risk, improve the reliability of semiconductor power module.

This invention discloses a continuous flow preparation process for hydrogenated lecithin with different phosphatidylcholine contents, belonging to the field of organic synthesis technology. Using methanol as a green hydrogen source and methyl source, this invention, by adjusting reaction conditions and catalysts, can achieve the preparation of hydrogenated lecithin products with phosphatidylcholine (PC) contents of ≥20%, ≥80%, and ≥98% from lecithin as raw material. While improving reaction efficiency, it reduces the liquid holdup of the reaction system, fundamentally reducing process risks and meeting different market demands.

The application belongs to the field of semiconductor MEMS device processing, and particularly relates to a structure-assisted electromagnetic MEMS micromirror processing method, which improves the problems of high processing complexity and high processing cost existing in the prior art. By using the schemes of selective silicon-silicon bonding after local roughening, thick silicon MEMS processing technology based on conventional silicon-silicon bonding, fusion of high-precision laser cutting in the MEMS processing flow, increase of temporary support and heat dissipation structure and the like, the dependence of the MEMS micromirror processing process on the temporary bonding and debonding equipment and technology required for wafer processing can be reduced, the machine time occupation of the single crystal silicon dry etching equipment is reduced, the processing cost is controlled, the mutual compatibility of each single-step process in the process flow is improved, the processing can be realized only by using the combination of conventional equipment and its process, the complexity of the processing process is reduced, the processing cost is reduced, and the electromagnetic MEMS micromirror has good manufacturability.