160results about How to "Reduce the degree of deformation" patented technology

The invention provides a cloth cutting device comprising a transport roller device, an adjustable guide roller mechanism, an auxiliary roller assembly, a press unit, a cutter and a rolling device; the press unit is provided with a tool rest; two sides of the tool rest are provided with a press mechanism; the cutter is arranged above the press unit; two sides of the cutter are provided with the auxiliary roller assembly; the cutter is provided with a vertical slide seat; a transverse slide seat is arranged on the vertical slide seat; one side of the transverse slide seat is provided with a buffer mounting rack; a cutter assembly is arranged below the buffer mounting rack; the cloth on the transport roller device passes the guide roller assembly, the auxiliary roller assembly, the press unit and the rolling device in sequence along the transport direction; the press unit can press tight the cloth on two sides of the tool rest, thus maximumly reducing the cloth deformation level, and ensuring the cutting process to be stable; the cutter assembly is provided with the buffer mounting rack, thus reducing bumps between the cutter and the tool rest in a cutting process, and reducing the cutter wearing.

The invention discloses a polyurethane hard-foam composition and a polyurethane hard-foam plastic prepared from the same. The polyurethane hard-foam composition comprises polyisocyanate, polyether glycol, polyester polyol I, additive flame retardant and foaming agent, wherein the polyester polyol I is flame-retardant polyester polyol. The flame-retardant polyester polyol is added in the polyurethane hard-foam composition, so that the consumption of the additive flame retardant can be reduced; and the plastification action of the additive flame retardant on the polyurethane hard-foam plastic can be reduced, the Van der Waals force among macromolecular chains of polyurethane can be increased, and the relative slippage among the macromolecular chains can be reduced, thereby reducing the sizes of foaming pores formed by the composition. Meanwhile, the Van der Waals force among the macromolecular chains is increased, so that the rigidity of the pore walls of the foaming pores in the polyurethane hard-foam plastic can be increased, thereby ensuring that the foaming pores are more regular in structure and the deformation degree of the foaming pores is weakened. The foaming pores are small in size and stable in structure, and can enhance the compression strength and creep property of the polyurethane hard-foam plastic.

The invention discloses a multi-layer printed circuit board machining process, which sequentially comprises the following steps: 1) manufacturing a circuit diagram and frame diagrams on a copper clad board, wherein the frame diagrams comprise a frame diagram I and a frame diagram II, the circuit diagram, the frame diagram I and the frame diagram II are sequentially arranged from the central zone of the copper clad board to the outside, and the copper residual rate of the frame diagram I is smaller than the copper residual rate of the frame diagram II; 2) laminating the copper clad board into a multi-layer circuit board, and milling off the outer edge of the multi-layer circuit board comprising the frame diagram II; 3) manufacturing a through hole, an outer diagram and a solder mask of the multi-layer circuit board; and 4) milling the multi-layer circuit board into the designed finished size. By adopting the machining process of the invention, the machining precision of the PCB is high, and the size of the PCB is accurate.

The invention discloses an automatic preparation method of a SiCf/SiC composite material flame tube. The preparation method comprises the following steps: preparing an interface layer from SiC fibersby adopting chemical vapor deposition, so as to obtain SiC fibers with a continuous interface layer; performing unidirectional tape laying and filament winding on the SiC fibers with the continuous interface layer according to the fiber volume and fiber orientation obtained by simulation calculation, so as to obtain net size forming preform; performing densifying treatment on the obtained preformby adopting a reactive melt infiltration process and the chemical vapor deposition process; preparing an environmental barrier coating on the surface of the obtained preform; finally, continuously preparing a thermal barrier coating on the surface, thereby fully intelligently obtaining the high-density SiCf/SiC composite material flame tube. The SiCf/SiC composite material flame tube prepared withthe method disclosed by the invention has the characteristics of high temperature resistance and long service life and also has the advantages such as low thermal expansion coefficient, high thermalconductivity, high thermal shock resistance and excellent mechanical property. Meanwhile, the preparation method is high in degree of automation, short in production cycle, low in cost and controllable in quality.

The invention discloses a photovoltaic backing plate refinishing paint as well as a refinishing method and applications thereof. The refinishing paint comprises the following raw materials in parts byweight: 40-60 parts of fluorine resin, 10-25 parts of silicone prepolymer, 1-19 parts of epoxy resin, 15-31 parts of inorganic filler, 1-13 parts of auxiliaries, 5-30 parts of diluent, and 5-34 partsof isocyanate curing agent; the refinishing method of a photovoltaic backing plate coating comprises the following steps: (1) cleanly treating the flaws of a photovoltaic backing plate; and (2) filling the prepared photovoltaic backing plate refinishing paint into the flaws, and drying; the applications comprise that the photovoltaic backing plate refinishing paint is applied in refinishing of coatings of coated type, compound type, co-extrusion type and PET type photovoltaic backing plates; and the photovoltaic backing plate refinishing paint not only can meet the strong hydrophobicity situation, but also has the advantages of being low in stress, yellowing-resistant, good in glossiness and strong in adhesivity.

The invention discloses an injection molding composition for a rubber and iron integrated frame, the rubber and iron integrated frame and a manufacture method of the rubber and iron integrated frame. The injection molding composition for the rubber and iron integrated frame comprises a plastic granule and a solid additive, wherein the shrinking percentage of the solid additive is less than that of the plastic granule; the solid additive comprises at least one of a glass fiber, a carbon fiber or a boron fiber; when injection molding is carried out, the plastic granule and the solid additive are mixed and injection molded, so that the using volume of the plastic granule is reduced, the injection amount of the plastic granule is reduced and the shrinking percentage of the injection molding plastic of the rubber and iron integrated frame is reduced; the melting point of the solid additive is higher than that of the plastic granule, the injection molding temperature is controlled between the melting points of the solid additive and the plastic granule. The solid additive is kept in a solid state in the injection molding process so that the deformation degree after shaping the rubber and iron integrated frame is small or none.

The invention relates to a filter press and a filter pressing method, and belongs to the technical field of water removing equipment. The filter press comprises a first filter pressing system and a second filter pressing system, the first filter pressing system internally comprises a first filter belt, the second filter pressing system internally comprises a second filter belt, a section of an overlapping part formed by mutual attaching is arranged between the first filter belt and the second filter belt, pressing rollers are arranged on one side of the overlapping part, the pressing rollers extrude the overlapping part, thus objects to be subjected to filter pressing between the first filter belt and the second filter belt are extruded to filter liquid out; and the two or more pressing rollers are arranged, and the diameters of the pressing rollers located on the front filter pressing position are larger than the diameters of the pressing rollers located on the rear filter pressing position. The multiple pressing rollers with the diameters being decreased progressively are adopted to sequentially conduct pressure progressive increase type filter pressing on the overlapping part, the pressing rollers located on the front filter pressing position become the basis of further filter pressing of the pressing rollers located on the rear filter pressing position, high-efficiency filter pressing of overall filter pressing equipment is achieved, and the water outlet proportion of the objects, to be subjected to filter pressing, such as sludge and impurities is increased.

The invention discloses a large-pipeline storing bracket for a building site. The large-pipeline storing bracket comprises a bottom supporting base plate. A plurality of ground inserting rods are mounted on the bottom surface of the bottom supporting base plate. The large-pipeline storing bracket is mainly used for supporting storing of a large pipeline, a supporting part makes contact with an inner ring of the pipeline, by increasing the internal contact area of the supporting part and the pipeline, the degree of deformation of the pipeline due to the gravity of the pipeline is reduced effectively, and the phenomena such as the mechanical property of the pipeline are protected effectively; the large-pipeline storing bracket is provided with a large air one-way flowing control mechanism, one-way air flowing can be achieved under the precise that the large air pressure is borne, accordingly, the pressure effect of the air pressure on vulnerable components such as a valve core at the mounting part is reduced, and the service life of the components is prolonged; and in addition, the large-pipeline storing bracket is provided with a thread-rotating-type air release flow control mechanism, discharging and closing functions of the air with the large air pressure can be controlled, and practicability is high.

The invention relates to a door frame sealing device, and the device is used for sealing a gap between a door frame and a door leaf. The device comprises an installation part, and an installation groove which is used for installing a sealing strip, wherein the installation part is located in a metal, plastic or wood door frame, and the sealing strip consists of a fixed part and a sealing part. The device is characterized in that the fixed part of the sealing strip is disposed in an installation groove of a built-in strip; the built-in strip is disposed in the installation part, is installed on a closing surface in a closing direction, and can be impelled in a parallel manner. The device enables the gap between the door frame and the door surface to be sealed as durably and completely as possible, and is not affected by the torque of a door structure or the concave-convex parts of the door surface.

The invention discloses an inverse piezoelectric nano semiconductor generator, which comprises a semiconductor nano-wire array, a metal sheet, a shell and an external circuit. The nano-wire array consists of oriented semiconductor nano-wires with inverse piezoelectricity and polarization characteristics and is grown on a corresponding conductive metal substrate; the metal sheet is tightly contacted with the other side of the semiconductor nano-wire array; and the semiconductor nano-wire array and the metal sheet are directly fixed in the shell through a suspension spring system after up-and-down laminated contact and connected with the external circuit. When spatial electromagnetic radiation signals are acted on the nano-wires, the nano-wires generate inverse piezoelectricity and polarization phenomenon, and positive and negative charges are accumulated on the surfaces of the nano-wires. Meanwhile, Schottky contact effect causing unidirectional conduction of current is formed between the contact faces of a metal and an N-type semiconductor, and polarization charges on the surfaces of the nano-wires are directly output to the external circuit in a form of electronic current so as to finish energy conversion from electromagnetic radiation energy to electrical energy.

The invention relates to the field of pipeline connecting, and discloses a conjoined loose-joint ball valve water segregator which comprises a main lever and at least two distributive pipes. The distributive pipes are connected with the outer side face of the main lever, at least two protrusion edges are arranged on the outer side face of the main lever, the protrusion edges extend in the axial direction of the main lever, the length of the protrusion edges is equal to that of the main lever, at least one auxiliary edge set is further arranged on the outer side face of the main lever, each auxiliary edge set comprises two or more auxiliary edges, the number of the auxiliary edges is even, the auxiliary edges extend in the axial direction of the main lever, and the auxiliary edges belonging to the same auxiliary edge set are symmetrically distributed on the two sides of the main lever. The conjoined loose-joint ball valve water segregator has the advantages of being high in strength, long in service life, simple in fixation, easy to mount, convenient to machine after forging, few in working procedure, and low in manufacturing cost and having good application value.

The invention provides a mask, and belongs to the technical field of display. The mask comprises a mask main body, wherein a hollow region is arranged on the mask main body, n bulges are arranged at an edge of the mask main body in an upward extension way, and n is more than or equal to 3. By the mask, the problem that the mask can be deformed under an effect of stress generated by welding duringthe welding process of the mask and a mask frame to further cause that the hollow region in the mask also can be deformed is solved. The mask is used for manufacturing a mask assembly.

The invention provides an attapulgite- titanium dioxide modified ultra-high molecular weight polyethylene composite material as well as a preparation method and application thereof, and belongs to thetechnical field of solid lubricating materials. According to the invention, attapulgite- titanium dioxide is used as a filler in ultrahigh molecular weight polyethylene, titanium dioxide particles have high surface energy, hard high-roughness particles can be formed after the titanium dioxide particles are loaded on attapulgite, and after attapulgite-titanium dioxide serving as filler is combinedwith ultrahigh molecular weight polyethylene, a better bearing effect can be achieved in the friction process, and abrasion of the material can be prevented; and meanwhile, the attapulgite-titanium dioxide is added, so that the heat resistance of an ultrahigh molecular weight polyethylene matrix can be improved, the composite material is not prone to deformation under the condition that frictionheat is concentrated, the deformation degree of the material is reduced to a certain extent, correspondingly, adhesive wear is also reduced to a certain extent, and the anti-friction and wear-resisting properties of the material are further improved.

The invention relates to the technical field of metal plate polishing devices, and discloses an intelligent metal plate polishing device for automobile production. Through arrangement of a limiting spring and the like, to-be-polished workpieces of different sizes and different shapes are conveniently clamped, meanwhile, through arrangement of a pressure sensor and the like, intelligent clamping is achieved, and through arrangement of a scanning imager and the like, Intelligent polishing is achieved, and polishing errors are reduced; through the arrangement of an infrared thermometer and the like, the temperature of the polishing position is conveniently monitored in real time, the situation that the local temperature of a workpiece is too high, deformation is caused, and the polishing effect is affected is avoided; and on the other hand, intelligent polishing is achieved, and through the arrangement of a driving annunciator, a driving wire and the like, a central controller can indirectly control multiple electric sliding blocks to move conveniently, a polishing mechanism is indirectly driven to move at multiple positions through the arrangement of the multiple electric sliding blocks and a sliding rail, and therefore multi-direction and multi-angle polishing can be conveniently achieved for workpieces of different shapes and sizes, the purpose of self-adaptive clamping is achieved, and intelligent polishing is achieved.

The invention relates to a non-deforming three-dimensional image parallax quick adjusting method which is characterized by comprising the following steps that S01. a depth value to be adjusted is determined, namely a depth changing value DA; S02. a parallax adjusting coefficient k = f(DA) is computed; S03. according to the smallest field depth changing error threshold value SDA = f(v and d) which can be perceived by a human eye, the value range (k1 and k2) of the parallax adjusting coefficient k is computed, wherein v is the watching distance between a person and a screen, and d is the distance between a three-dimensional image and the screen; and S04. an original image is zoomed according to a fixed drawing coefficient k, the value range of k is limited in (k1 and k2), and the fact that deforming cannot be perceived is guaranteed. Compared with a traditional method, the deforming degree is lowered by more than 50%, three-dimensional vision subjectivity effect is better, and method efficiency for high-definition video is improved by 48%.

The invention provides a semi-independent automobile rear suspension and belongs to the technical field of vehicles. The semi-independent automobile rear suspension comprises a left dragging arm, a right dragging arm, a beam and movable connecting pieces. The two ends of the beam are movably connected with the left dragging arm and the right dragging arm through the movable connecting pieces respectively. Due to the fact that the left dragging arm and the right dragging arm are movably connected with the beam, the dragging arms on the two sides can move within a certain degree in a relatively-independent mode, in the driving process of an automobile, the deformation degree of the beam is reduced, the beam only bears the axial acting force of the beam, the overall suspension is more flexible, the adaptive capacity of the suspension to complex road surfaces is improved, and the overall comfort degree of the automobile with the semi-independent automobile rear suspension is greatly improved.

The invention discloses a manufacturing device of artificial turf hollow particles. The manufacturing device comprises an extruding machine, a cooling device, a conveying device and a particle cutting machine; the extruding machine, the cooling device, the conveying device and the particle cutting machine are sequentially connected; the extruding machine comprises a feeding machine, a vacuum exhaust device and a die head; the vacuum exhaust device is connected with the feeding machine through an inserting pipe; the die head is mounted on the vacuum exhaust device; the die head comprises a shell, a runner and a heating part; the runner and the heating part are both mounted in the shell; the heating part is mounted on the side wall of the runner, the feeding end of the runner is communicated with a discharging opening of the vacuum exhaust device, and the discharging end of the runner is provided with a discharging nozzle; an embedding block is arranged in the discharging nozzle; according to the manufacturing device, improvement is carried out according to the shape of the hollow rubber particles needed on the artificial turf, the device can directly produce the hollow particles, the form of finished products is stable, and the quality is good.

The invention relates to the field of color steel plates, in particular to a device for preventing deformation of a rock wool color steel plate through a pressure dispersion method. The technical problem to be solved by the invention is to provide a device for preventing deformation of a rock wool color steel plate through a pressure dispersion method. According to the technical scheme, the device for preventing the rock wool color steel plate from deforming through the pressure dispersion method comprises a conveying mechanism, a pressure dispersion mechanism, a glue cleaning mechanism, a fixing frame and the like, wherein the conveying mechanism is connected with the pressure dispersion mechanism, the conveying mechanism is connected with the fixing frame, the pressure dispersion mechanism is connected with the fixing frame, and the glue cleaning mechanism is connected with the fixing frame. According to the invention, the rock wool color steel plate can be adhered at a time, so that the production efficiency of the rock wool color steel plate is effectively improved; and in the production process, pressure is dispersed, so that deformation of the rock wool color steel plate is effectively prevented, and the effect that the quality of the rock wool color steel plate reaches the standard is achieved.

The present invention relates to gap seal device for sealing a gap between a door frame and a door leaf or a gap between two door leaves. Te gap seal device includes a fixed strip, a seal strip comprising a fixed portion and a seal portion, a mounting groove for mounting the seal strip, and a house; the fixed portion of the seal strip is inserted into the mounting groove of a built-in strip, and the built-in strip positioned in the fixed strip is mounted on a door close face of a door, and can be parallelly pushed forward. The gap seal device allows the gap between a door frame and a door leaf or a gap between two door leaves to be sealed permanently, effectively and completely avoid the influence of door leaf torque and bump deformation of the door.