20results about How to "Forming accurately" patented technology

The invention relates to the technical field of prefabricated formworks, in particular to an arc-shaped equipment foundation prefabricated formwork equally-divided assembling and reinforcing method which comprises the steps that firstly, lofting is conducted on plywood according to the foundation diameter, a corresponding circular formwork outline is cut out, and a bottom fixing plate and a top end fixing plate are manufactured; finally, the base is divided into an even number of bottom fixing plates and top end fixing plates according to the diameter of the base; equilong battens are cut according to the height of the foundation to form supporting assemblies, and the supporting assemblies are evenly distributed between the bottom fixing plate and the top end fixing plate and fixed through nails, so that a prefabricated circular-arc-shaped equipment foundation framework is formed; the corresponding circular-arc-shaped equipment foundation framework is assembled on the bottom plate, and a complete circular-arc-shaped equipment foundation prefabricated formwork is formed; flattening an iron sheet higher than the top end fixing plate on the fixing cambered surface; and after the internal iron sheet is fixed, a circle is defined on the fastening groove by using a reinforcing steel bar, and the joint is fastened by using an opposite-drawing lead screw and then is welded and reinforced at the joint.

The invention provides a photoresist composition and a preparation process thereof. The photoresist composition is prepared from the following raw materials in parts by weight: 80.0 to 100.0 parts of solvent, 20.0 to 40.0 parts of resin, 3.0 to 5.0 parts of photoinitiator, 1.0 to 3.0 parts of light stabilizer, 1.5 to 2.5 parts of tackifier, 1.0 to 1.5 parts of monomer, 1.0 to 2.0 parts of acid diffusion inhibitor and 0.5 to 2.0 parts of flatting agent. Wherein the acid diffusion inhibitor is prepared from perfluorocyclohexane, benzo-15-crown ether-5 and L-ethyl lactate, and the mass volume ratio g / mL of the perfluorocyclohexane to the benzo-15-crown ether-5 to the L-ethyl lactate is (2-3): (1-2): (1-2). According to the acid diffusion inhibitor disclosed by the invention, through the combined action of different mechanisms of the perfluorocyclohexane, the benzo-15-crown ether-5 and the L-ethyl lactate, the diffusion speed of acid is slowed down, so that the boundary between an exposure region and a non-exposure region is clearer, and the resolution ratio of photoresist is improved. By modifying the methacrylic resin, the surface energy and polarity of the methacrylic resin are changed, and the solubility of the resin after exposure is remarkably changed, so that the photoresist is easier to remove in a developing solution, and the definition and resolution of a pattern are improved.

The present invention relates to the technical field of forging dies, and in particular to a cold extrusion shaft die for automotive accessories, comprising an upper die and a lower die, wherein a base assembly is provided below the lower die, a ejector assembly is provided on the lower side of the lower die, the ejector assembly is used to eject the workpiece after forming, a guide assembly is provided between the upper die and the lower die, the guide assembly is used to guide when the upper die rises or falls, a connecting assembly is provided on the upper side of the upper die, and two sides of the upper die that are far from each other are provided with in-place self-locking assemblies, the in-place self-locking assemblies are used to position the upper die after the upper die and the lower die are closed, and a lifting self-unlocking assembly is provided between the ejector assembly and the connecting assembly. The present invention has the functions of facilitating groove pressing, continuous processing, and automatic locking by arranging the upper die, and has high processing efficiency.

The present invention relates to the field of printing production technology, in particular to an automatic composite molding system for printed products, comprising a substrate feeding mechanism, a printing mechanism, a drying mechanism, a film material unwinding mechanism, a composite mechanism and a molding mechanism which are arranged in sequence; the substrate feeding mechanism is used for feeding printed substrates, the printing mechanism is provided with at least one group to print patterns on the printing substrate, the drying mechanism is used for drying the ink after printing and guiding the dried printed substrate toward the composite mechanism, the film material unwinding mechanism is used for the film material unwinding paper composite mechanism, the composite mechanism is used for thermally composite the film material on the surface of the printing substrate and guide the coated printed substrate toward the molding mechanism; the present invention performs die-cutting molding on the substrate after feeding, printing, drying and film material composite in sequence, thereby realizing the automatic production of printed products without manual intervention, high production efficiency and high degree of automation.

The invention provides a hot rolling preparation method for producing flat-bulb titanium and application, the method comprises the steps that S1, a square blank is preheated to T1 and then subjected to heat preservation for 1-2 h, the phase transformation point of the square blank is T2, T1 = T2-delta T, and delta T ranges from 20 DEG C to 30 DEG C; s2, rough rolling is conducted at the speed of 4.5 m / s to 5.5 m / s, a groove is formed, the blank temperature after rough rolling is larger than or equal to 880 DEG C, finish rolling is conducted in a continuous passing mode to conduct arc shaping on the blank, the symmetrical flat-bulb titanium profile with bulbs at the two ends and a web in the middle is obtained, the blank temperature after finish rolling is larger than or equal to 850 DEG C, and the total rolling deformation ranges from 75% to 85%; s3, the profile is conveyed to a line roller type tension straightening machine through a roller way to be subjected to tension straightening treatment, the speed is 0.4-0.6 m / s, and the temperature of the straightened profile is larger than or equal to 700 DEG C; and S4, air cooling treatment is carried out, then tongue-shaped parts at the head and the tail are cut off, oxide skin on the surface layer is cleaned, and two flat-bulb titanium profiles with the same specification are obtained through water cutting symmetric segmentation in the rolling direction. According to the method, the temperature difference between the head and the tail can be reduced, the structure property uniformity and the batch stability are improved, and the minimum length of the prepared flat-bulb titanium profile can reach 12-15 m.

A scanning microscope unit includes: a light source for outputting irradiation light; a photodetector for detecting observation light generated from an observation object in response to irradiation with the irradiation light; a MEMS mirror for scanning the irradiation light over the observation object, and for guiding the observation light toward the photodetector; a scanning lens for guiding the irradiation light scanned by the MEMS mirror, to a microscope optical system, and for guiding the observation light imaged by the microscope optical system, to the MEMS mirror; and a frame member formed in a frame shape to define an opening, and disposed on a side of the microscope optical system with respect to the scanning lens such that the irradiation light and the observation light pass through the opening. The frame member includes a calibration portion provided in a side portion defining the opening, and for generating calibration light including a sensitivity wavelength of the photodetector in response to an incidence of the irradiation light.

The invention relates to the field of building construction, and particularly discloses a hydraulic self-climbing type elevator shaft shaping operation platform and a construction method. The middle part of the second climbing assembly is provided with a mounting hole for the local part of the first climbing assembly to pass through; the power device is used for controlling the first climbing assembly and the second climbing assembly to climb in a staggered manner and is fixedly connected with the first climbing assembly or the second climbing assembly; the steel skeleton support is adjustably mounted on the second climbing assembly; the formwork assembly is detachably mounted on the steel skeleton support; and one end of the pull-up adjusting supporting unit is hinged to the formwork assembly, and the other end of the pull-up adjusting supporting unit is hinged to one end of the first climbing assembly. According to the scheme, the steel framework support is adjustably installed on the second climbing assembly and matched with the pull-up adjusting supporting unit, so that when the formwork assembly is folded or unfolded, disassembly and assembly matching of the formwork assembly is more convenient and efficient.

The invention discloses a preparation method of a reinforced ultra-high molecular weight polyethylene composite material, and relates to the technical field of composite materials, and the preparation method comprises the following steps: S1, firstly, accurately weighing ultra-high molecular weight polyethylene, aramid fiber and nano titanium dioxide, drying at 80 DEG C for 4-6 hours, modifying the surface of titanium dioxide, and the like. Through composite use of ultra-high molecular weight polyethylene, aramid fiber and nano titanium dioxide, high strength and toughness are provided, the rigidity and wear resistance of the composite material are improved, titanium dioxide surface modification treatment is carried out, so that the composite material has excellent melt index performance, and when automobile interior trim parts are subjected to injection molding, the impact resistance of the automobile interior trim parts is improved. Due to the good melt index performance, the material can be more easily filled in a complex cavity of a mold, parts with various shapes and high detail requirements can be accurately molded, the appearance quality and the assembly precision of interior trim parts can be improved, the rejection rate caused by molding defects is reduced, and the cost is reduced.

The invention provides a manufacturing method of a Mini-LED packaging BT substrate, and the method comprises the following steps: S1, carrying out the processing of the surface of a BT carrier plate, and enabling the surface to form a compact light absorption film layer; s2, performing laser grooving on the BT carrier plate subjected to surface treatment; s3, electroplating and copper deposition are carried out on the BT carrier plate after slotting; s4, a circuit pattern is manufactured on the BT carrier plate after copper deposition is completed; s5, performing resistance welding processing on the BT carrier plate on which the circuit pattern is manufactured; and S6, carrying out nickel-palladium-gold treatment on the BT carrier plate subjected to resistance welding treatment, and then carrying out cleaning, cutting, fragmentation and inspection to obtain the Mini-LED packaging BT substrate. According to the manufacturing method of the Mini-LED packaging BT substrate provided by the invention, the surface of a BT carrier plate is treated, so that a compact light absorption film layer is formed on the surface of the BT carrier plate; according to the method, the undemanded area is removed through the laser, grooving of the LED packaging BT substrate is achieved, the width of the groove can be not larger than 0.1 mm, the cutting quality is improved, the grooving precision is improved, the manufacturing cost is reduced, and therefore high-precision and low-cost grooving manufacturing is achieved.

The invention discloses a photoresist composition and a patterning method thereof, the photoresist composition comprises an organic solvent and titanium oxide compound nanoparticles, the mass percentage content of a metal oxygen cluster film forming monomer is 1%-30%, and the mass percentage content of the organic solvent is 70%-99%. Titanium commonly used as photocatalytic metal is selected as central metal, benzoic acid which is long in absorption wavelength and easy to leave or a derivative of benzoic acid is selected as ligand, carboxylic acid ligand is easy to leave under the action of extreme ultraviolet, electron beams and visible light (within the light source range of 250-600 nanometers), the solubility of photoresist is promoted to be converted, excellent sensitivity is shown, and the preparation method is simple and easy to implement. And high-precision photoetching patterning is realized.

This invention discloses a lane line annotation method. First, it acquires the point and surface results of lane line detection separately. Then, it fuses the point and surface results using a multi-model approach to obtain a fused point set. Next, it tracks the fused point set and selects consecutive frames for tracking and fusion to obtain a merged point set. Finally, it performs fitting based on the merged point set and uses the fitting result as the lane line annotation result. This method automates lane line annotation and significantly improves its accuracy. Furthermore, it can quickly and accurately generate a large amount of sample data, providing a training set for lane line detection models and increasing the efficiency of developing new lane line detection models.

The present invention relates to a punching-type iridotomy instrument, and more particularly, to a punching-type iridotomy instrument which, in iridectomy, increases the size and positioning accuracy iris incision through structural improvement in a perforation method, thereby shortening the surgery time and facilitating the convenience of surgical procedures. According to the present invention, the punching-type iridotomy instrument includes a grip manipulation part configured to be manipulated to be opened or closed by a user while being held by the user's hand, an extension shaft extending from the grip manipulation part, and a punching operating unit extending from the extension shaft and configured to perform an operation of forming a hole in a predetermined site of a peripheral portion of an iris in conjunction with an operation of the grip manipulation part performed by the user's manipulation, in which the grip manipulation part includes a first round shaft extending from a rear side of the extension shaft and having a first finger grip ring formed at an end of the first round shaft and configured to be fitted with the user's thumb, a second round shaft hingedly coupled to a predetermined position on the extension shaft by a pivot pin and having a second finger grip ring formed at an end of the second round shaft and configured to be fitted with the user's ring finger, the second round shaft being configured to implement a rotational operation related to a motion of the ring finger fitted into the second finger grip ring, a spring disposed between the first and second round shafts and configured to exert elasticity for pushing the second round shaft, and a wire configured to connect the second round shaft and the punching operating unit while passing through the extension shaft and operate the punching operating unit in conjunction with a rotational operation of the second round shaft.

The invention relates to the technical field of photovoltaics, and discloses a passivation contact solar cell and a preparation method thereof. The preparation method comprises the following steps: providing a substrate layer with a first surface and a second surface which are opposite; forming an oxide layer on the first surface of the substrate layer; performing laser sintering treatment on the surface of the oxide layer; forming a first doping layer on the oxide layer after laser sintering treatment; forming a second doping layer on the second surface of the substrate layer; and forming a first electrode connected with the first doping layer on one side of the first surface of the substrate layer, and forming a second electrode connected with the second doping layer on one side of the second surface of the substrate layer. According to the invention, the laser sintering treatment is carried out on the oxide layer to realize accurate optimization of the surface of the oxide layer and improve the surface and interface characteristics, so that the surface recombination rate of the oxide layer and the substrate layer and the first doping layer is reduced, the service life of a carrier is prolonged, the photoelectric conversion efficiency and stability of the cell are improved, and the power generation efficiency is improved.

The utility model relates to a reverse support system for pouring a floor support plate of a high and large space steel structure, and belongs to the technical field of steel structure building construction. The system comprises a split head arranged on a steel structure I-shaped steel beam, a reverse support main beam is placed on the split head, a reverse support upper secondary beam and a reverse support lower secondary beam are placed in the vertical direction of the reverse support main beam, and the reverse support upper secondary beam, a floor support plate reinforcing steel bar and the reverse support lower secondary beam are connected through split screws and fixed through butterfly clamps. During pouring, force generated downwards is transmitted to the reverse support upper secondary beams through the opposite-pull screws, then transmitted to the reverse support main beams and then transmitted to the steel structure I-shaped steel beams, and therefore the effect that force on the floor support plate is finally transmitted to the firm and stable steel structure I-shaped steel beams is achieved, and it is guaranteed that collapse accidents do not occur when concrete is poured into the floor support plate. The supporting system is scientific in design, reasonable in structure, easy to construct, safe, reliable, accurate in forming and attractive in appearance, meets the requirement of excellent engineering and meets the use function.

A method of manufacturing a stacked core includes: a first step of forming a first pilot hole in a strip-like metal plate by a first punch; a second step, in a state in which a first pilot pin is inserted into the first pilot hole to position the metal plate, of working a predetermined portion of the metal plate by a second punch, and of press-fitting a worked portion of the metal plate that is worked by the second punch into the metal plate; a third step of forming a second pilot hole in the metal plate by a third punch, after the second step and before another work is performed on the metal plate; and a fourth step of blanking a region including the worked portion by a fourth punch to form a first blanked member, in a state in which a second pilot pin is inserted into the second pilot hole to position the metal plate, after the third step.

The utility model relates to a forming machine suitable for paper boxes of multiple specifications, which comprises a machine frame, a mounting frame arranged at the top of the machine frame, an adsorption back plate connected to the front side of the lower part of the mounting frame, a visual positioner arranged above the machine frame, an auxiliary frame arranged at the front side of the machine frame, a guide rail arranged at the top of the auxiliary frame, and a first sliding block and a second sliding block arranged on the guide rail in a sliding manner, a first mounting seat is arranged on the front side of the first sliding block, and a second mounting seat is arranged on the second sliding block in a backward extending mode. According to the flat-plate carton conveying device, the conveyed flat-plate carton is adsorbed through the adsorption back plate, so that the flat-plate carton is vertically placed, then the folded plate is driven to be slowly inserted into the flat-plate carton, meanwhile, the guide inclined plate is also slowly inserted to expand a part of space of the flat-plate carton in advance, and pressure generated when the flat-plate carton is pushed by the folded plate is reduced; when the folding plate rotates to open the left side and the right side of the flat paper box, conversion and forming from the flat paper box to a three-dimensional paper box are completed, and the folding plate is movably arranged, so that the folding plate can adapt to forming of paper boxes with multiple specifications and lengths.