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59results about How to "Guarantee the final quality" patented technology

Construction method for subway contact passage

The invention provides a construction method for a subway contact passage suitable for a very thick Cenozoic stratum region with low heat conductivity and strong heat insulation effect. The method comprises five stages, namely construction preparation, construction of freezing holes, freezing, digging and supporting of the passage and a water collecting well and slurry filling in the back of a wall. The method specifically comprises the following steps of: performing the construction preparation, then forming the freezing holes under the condition that the thickness of a frozen soil curtain is ensured, adding short-range freezing holes on the upper parts of the bell mouths of the freezing holes, and detaching reserved steel pipe sheets at the opening of the passage by adopting a secondary hole forming technology; performing positive freezing after a freezing system runs normally, and making the freezing system perform maintenance freezing after the frozen soil curtain meets the design requirement; after the procedures are finished, performing the digging and supporting stage of the passage and the water collecting well; and pre-burying slurry pipes and filling slurry. By the construction method, the construction difficulty is reduced, the safety and the reliability of engineering are improved, the construction period is shortened, the construction efficiency is improved, and the quality of the engineering is ensured.
Owner:TIANJIN URBAN CONSTR TUNNEL

Assembling method of rotary double cylinder compressor pump body

The invention discloses a method for assembling a pump body of a rotary duplex cylinder compressor, which comprises the steps: (1) after the centers of an upper cylinder and an upper flange are regulated, the upper cylinder and the upper flange are fixed into a component (M) with a short screw; (2) the center of a lower cylinder is regulated corresponding to the component (M), and the upper cylinder is separated from the component (M) after the corresponding position of the lower cylinder to the component (M); (3) after the centers of the lower cylinder and a lower flange are regulated, the lower cylinder and the lower flange are fixed into a component (N) with a short screw; (4) an upper roller, a lower roller, a sliding vane and a crank shaft are put in the component (M) and the component (N); a baffle is put between the component (M) and the component (N); according to step (2), the corresponding position of the lower cylinder to the component (M) is recorded; the component (M) is matched with the component (N) and fixed together with the component by long screws to form a whole pump body. The method can reduce spillage to the highest extent, maximizes the universal use of existing devices and has detectable clearance.
Owner:GREE ELECTRIC APPLIANCES INC OF ZHUHAI +1

Ring crane corbel for nuclear power station and manufacturing method thereof

The invention relates to a ring crane corbel for a nuclear power station and a manufacturing method thereof, belonging to the technical field of building construction facilities. In the ring crane corbel, a box-type frame main body comprises a rectangular main body plate, wherein an upper cover plate and a lower cover plate are respectively soldered and fixed on one side of the main body plate; a left lateral plate, a right lateral plate and a middle stiffened plate are soldered between the upper cover plate and the lower cover plate; the left lateral plate, the right lateral plate and the middle stiffened plate are soldered with the main body plate; the two ends of one side of the lower cover plate are soldered with the two bottom edges of an external baffle; the upper part of the external baffle extends between the left lateral plate and the right lateral plate after the upper part of the external baffle is bent; the two lateral edges of the upper part of the external baffle are respectively soldered with the inner surfaces of the left lateral plate and the right lateral plate; the other side of the main body plate is soldered with a bent bar; and horizontal and vertical stiffened plates are respectively soldered on corresponding positions on the main body plate, which are soldered with the upper cover plate, the lower cover plate, the left lateral plate, the right lateral plate and the middle stiffened plate. After the ring crane corbel is adopted, the use requirement can be met, and reasonable assembly and soldering sequence are adopted, so the final quality of the ring crane corbel component can be ensured.
Owner:CHINA NUCLEAR IND HUAXING CONSTR

Light guide plate full-automatic numerical control polishing apparatus

The invention discloses a light guide plate full-automatic numerical control polishing apparatus. The light guide plate full-automatic numerical control polishing apparatus comprises a workbench, a positioning device, a polishing device, a material taking device and a dust collection cover. The positioning device, the polishing device, the material taking device and the dust collection cover are arranged on the workbench. The workbench is provided with at least one rotary platform for fixing a light guide plate. The rotary platform is connected with a rotation driving mechanism for driving therotary platform to rotate horizontally. The workbench is further provided with an X-axis-direction driving mechanism and a Y-axis-direction driving mechanism, wherein the X-axis-direction driving mechanism can drive the rotary platform to horizontally move in the X-axis direction back and forth, and the Y-axis-direction driving mechanism can drive the rotary platform to horizontally move in the Y-axis direction back and forth. The light guide plate full-automatic numerical control polishing apparatus is further provided with a control system. A full-automatic operation mode is adopted by thelight guide plate full-automatic numerical control polishing apparatus, all the mechanisms can automatically return, and therefore, the efficiency is improved; and additionally, by using a first positioning mechanism and a second positioning mechanism in cooperation, datum positioning is formed by the side face, positioned by adopting the first positioning mechanism or a positioning plate, of thetwo opposite side faces of the light guide plate, buffer compensation type positioning is formed by the other side face positioned by adopting the second positioning mechanism, and then, accurate positioning is achieved; and the dust collection efficiency is as high as 99.5%.
Owner:KUNSHAN HENGDA PRECISION MACHINERY IND CO LTD

Method for detecting position of leakage point of underground concrete continuous wall

The invention relates to a method for detecting the position of a leakage point of an underground concrete continuous wall. The method comprises the steps of S1, digging a preliminary exploration well out of the continuous wall; S2, extracting underground water in the continuous wall; S3, observing the water level of the preliminary exploration well, and determining that the continuous wall corresponding to the preliminary exploration well with the reduced water level is the orientation of a leakage point; S4, digging a detection groove outside the leakage point area of the continuous wall, and dividing the detection groove into a plurality of detection intervals by using partition plates; S5, filling water into the detection groove, observing the water level of each detection interval, and if the water level of a certain detection interval drops, determining that the continuous wall corresponding to the detection interval is the position of the leakage point; S6, pumping out water in the detection groove, taking out the partition plates, reserving the two partition plates on the two sides of the detection interval, and backfilling the other detection intervals; and S7, irrigating the detection interval step by step, conducting standing for a period of time after each time of irrigation, observing the water level change, and if the water level drops at a certain time, determining the position corresponding to the water level height as the final position of the leakage point. The method has the effect of improving the comprehensiveness of leakage point position detection of the continuous wall.
Owner:JIANGSU TESTING CENT FOR QUALITY OF CONSTR ENG

Release film compounding equipment and release film compounding production line

The invention discloses release film compounding equipment and a release film compounding production line. The release film compounding equipment comprises a rack; a first unwinding device, a second unwinding device, an infrared preheating roller, a high-temperature water preheating roller, a composite roller device, a heat supply system, a cooling roller, a third flattening roller, an edge cutting mechanism and a winding device are arranged on the rack; a thin film on the first unwinding device is preheated through an infrared preheating roller, a base film on the second unwinding device is preheated through a high-temperature water preheating roller, the preheated thin film and the base film are composited through the composite roller device to obtain a composite film, and the composite film bypasses the cooling roller and the third flattening roller, is subjected to edge cutting through an edge cutting mechanism and then is fed into the winding device to be wound. Aiming at the characteristics of the polyester composite release film, the production requirements of the novel polyester composite release film can be met, the release effect of the polyester composite release film is ensured, and meanwhile, the large-scale production of the novel composite release film is realized.
Owner:江苏金由新材料有限公司

Transverse stator blade assembling method and positioning tool

ActiveCN114211438AAccurately guarantee the positionPlay a positioning roleWork holdersRadial positionStructural engineering
The invention discloses a transverse static blade assembling method and a positioning tool. The tool comprises a first check block and a pressing mechanism thereof, a tail check block and a pressing mechanism thereof, and a plurality of wedge-shaped filler strips. The head check block and the tail check block are used for limiting the circumferential installation positions of the head stator blade and the tail stator blade so as to guarantee that the circumferential installation positions of all the stator blades in the half circle are accurate, and the two pressing mechanisms are used for fixing the head check block and the tail check block to split faces at the two ends of the air cylinder respectively so as to fix all the stator blades in an installation groove of the air cylinder. The wedge-shaped filler strip is used for filling a gap between the outer arc of the crown of the stator blade and the outer circle of the cylinder mounting groove and limiting the radial position of the stator blade in the cylinder mounting groove. The positioning tool can well solve the problems of guaranteeing the assembly precision of the transverse stator blade and fixing the whole position, is simple in structure and convenient to operate, and effectively guarantees the final quality of products.
Owner:DONGFANG TURBINE CO LTD

Shaft assembly for lithium battery material production and combination method thereof

The invention discloses a shaft assembly for lithium battery material production. The shaft assembly comprises a conveyance shaft, wherein the conveyance shaft comprises a hollow supporting shaft and a wrapping layer wrapping the outer surface of the supporting shaft, the conveyance shaft is sleeved with two rollers, one end of the conveyance shaft is sleeved with a transmission wheel, bearings are arranged between the transmission wheel and the rollers, and bearing seats matched with the bearings are arranged outside the bearings. The shaft assembly for lithium battery material production can meet the use requirement of customized conveyance in special industries and the special requirement of multi-product production, and reduce the potential safety hazard of the use environment; in the production process of the lithium battery material, the low-zinc, low-copper and high-temperature-resistant conveyance requirements can be met, pollution from external metal elements in the raw material conveyance process is avoided, the sintering quality of the raw materials is guaranteed, and the potential safety hazard of battery discharge caused by raw material pollution in the production process is reduced; and the rated conveyance load can be increased only by adjusting the thickness of the coating layer according to the mass of conveyed products, machining of a metal piece is avoided, and the production cost is saved.
Owner:NANJING PANDA ELECTRONICS +1

Large-scale hollowed-out embossed hollow stone column construction method

The invention discloses a large-scale hollowed-out embossed hollow stone column construction method. The method comprises the following steps of subsection of raw embryo, core drawing section by section, remaining of tenon at end tip, determination of a suspension centre, hollowed-out carving, pre-splicing of each section and other steps. As the method adopts computer typesetting manufacturing technology to simulate the large-scale hollowed-out embossed hollow stone column, the technology simulates the three-dimensional integrated effect of the large-scale hollowed-out embossed stone column and represents the hollowed-out depth degree of stone carving. The method simulates the hollowed-out degree of an embossed pattern through a computer, further optimizes the hollowed-out pattern to ensure the hollowed-out quality of embossment before the carving operation, also can provide intuitional reference for the three-dimensional effect of the hollowed-out embossment of the large-scale stone column, better determines the cutting position of the embossment and has the advantages of accurate positioning, easy assembly, high mounting precision, high hollowed-out quality, and the like. In addition, the method adopts a structure of combining the hollow stone column and core reinforced concrete; and the structure has the advantages of good performances of earthquake resistance and typhoon resistance.
Owner:FUJIAN MINNAN CONSTR ENG

Method for processing magic cube box

The invention discloses a method for processing a magic cube box. The method comprises the following steps of cutting: binding boards and various packing paper used for decorating the binding boards are cut by using paper box cutting equipment; line pressing: the cut binding boards and the packing paper are die-cut to a half penetration depth so that the paper box can be subsequently bent according to a preset position; pretreatment: the binding boards are folded into a box shape through a magic cube box packaging device, and the packing paper used for decorating the outer walls of box bodiesis pasted on the binding boards to fix binding boxes, so that inner boxes with stable structures are formed; complete packaging: the bottom packing paper and the inner packing paper are added for thefixed inner boxes; arrangement: the packed inner box individuals are arranged; and connection: the inner boxes are connected through the packing paper. Through the arrangement of a shaping box and thepacking paper structure, the automation degree of the binding board packing paper is improved, and meanwhile, the binding boards are simply fixed by the packing paper so that the effective fixing effect can be achieved, so that the subsequent processing is facilitated, the production efficiency is guaranteed, and the final quality of products is guaranteed.
Owner:浙江翌星包装科技有限公司

Micron-sized particle stacking compactness testing device and testing method thereof

ActiveCN113504149AAccurate packing densityBulk density test is accurateSpecific gravity measurementMicron scaleCritical condition
The invention discloses a micron-sized particle stacking compactness testing device and a testing method thereof, and belongs to the technical field of material science and engineering, and the testing device comprises a piston, an outer sleeve, a filter membrane, a stainless steel filter screen, a perforated sheet, a sealing washer, a perforated supporting assembly, a liquid storage assembly and a demolding device. According to the testing device, filtering media with pore diameters and strength from small to large are combined to form the filtering assembly, so that the maximum bearable stress is greatly increased while the rejection rate is ensured, and the application range is enlarged. The invention further discloses the testing method of the device, the close packing state of the particles can be accurately judged, and the packing compactness of the micron-sized particles can be tested. According to the testing device and the testing method, the problems that the influence of particle clusters cannot be completely eliminated, critical condition judgment is subjective and the like in an existing method are solved, accurate testing of the micron-sized particle stacking compactness is achieved, and prediction of the rheological property of a solid-liquid mixture, optimization of the proportion and even guarantee of the final quality of the product in actual engineering are facilitated.
Owner:SOUTHEAST UNIV

A detection method for the position of the leakage point of the underground concrete diaphragm wall

This application relates to a detection method for the location of the leakage point of an underground concrete diaphragm wall, which includes S1: digging a preliminary survey well outside the diaphragm wall; S2: pumping groundwater inside the diaphragm wall; S3: observing the water level of the preliminary survey well to determine the drop of the water level The initial survey well corresponding to the diaphragm wall is the direction of the leakage point; S4: Dig a detection trench outside the leakage point area of ​​the diaphragm wall, and use a partition to divide the detection trench into multiple detection intervals; S5: Towards the detection trench Fill water and observe the water level of each detection interval. If the water level of a certain detection interval drops, determine the position of the leakage point corresponding to the continuous wall of the detection interval; S6: Pump out the water in the detection groove, take out the partition, and keep two partitions on both sides of the detection interval. Plate, backfill the rest of the detection area; S7: Irrigate the detection area step by step, and wait for a period of time after each irrigation, and observe the water level change. If the water level drops for a certain time, determine the position corresponding to the water level height as the final leak point position. The present application has the effect of improving the comprehensiveness of the position detection of the leakage point of the continuous wall.
Owner:JIANGSU TESTING CENT FOR QUALITY OF CONSTR ENG

Mold for injection molding of plastic water cup

The invention discloses a mold for injection molding of a plastic water cup. The mold comprises a bottom plate, a stand column vertically arranged on the bottom plate and a water cup injection molding device arranged on the stand column; the water cup injection molding device comprises a lower die block fixedly connected to the stand column, an upper die block arranged above the lower die block, a plurality of cylinders arranged on the two sides of the lower die block, limiting blocks arranged below the upper die block, limiting grooves formed in the limiting blocks, a split type cavity formed in the lower die block, an injection molding core arranged on the upper die block, a transmission structure used for driving the upper module to move up and down and a material receiving structure arranged below the lower module and has a cooling function; the limiting grooves sleeve the cylinders in a one-to-one correspondence manner; the moving directions of the upper die block and the material receiving structure are opposite; through the arrangement of the material receiving structure, the produced plastic water cup is effectively received; the situation that the water cup flies out of the mold to cause material damage is avoided; and meanwhile, through the arrangement of the split type cavity, the demolding efficiency is improved.
Owner:佛山市鑫斐翔精密模具有限公司
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