16results about "Domestic nets" patented technology

A net including a plurality of transverse bands, intersecting a plurality of longitudinal bands, the plurality of longitudinal bands each comprising two intermittently adhered films forming channels at discontinuities of adhesion between the films, and wherein at least one intersection of the longitudinal and transverse bands at least one transverse band is threaded through at least one of the channels of at least one longitudinal band.

This invention provides a flexible metal mesh composite self-lubricating material and its preparation method, belonging to the field of functional composite materials. The invention involves preparing a perforated metal skeleton by punching holes in a multi-layer composite metal plate using a perforation machine, then preparing modified PTFE by blending PTFE and functional modified fillers, and finally incorporating it into the perforated metal skeleton. The flexible metal mesh composite self-lubricating material is then prepared through drying, sintering, and rolling processes. This material can be used in textile machinery, joint bearings, automotive door hinges, and other fields, solving the problems of poor corrosion resistance, easy lubricant dissipation or uneven distribution, and the inability to simultaneously achieve material strength and lubrication performance in traditional metal-based self-lubricating materials. The self-lubricating material of this invention combines high strength, excellent corrosion resistance, and long-lasting self-lubricating properties, exhibiting a sandwich-like flexible composite structure with a three-dimensional interpenetrating microstructure, demonstrating significant application potential in high-performance engineering applications.

This invention relates to the field of vascular stent fabrication technology, and discloses a method for fabricating a stent with electrodes, comprising the following steps: providing a planar stent precursor with thermally responsive deformation characteristics; forming a conductive layer on the surface of the planar precursor, and patterning the conductive layer to form at least one electrode unit and at least one conductive wire unit electrically connected to the electrode unit; forming a non-conductive material layer on at least a portion of the surface of the conductive layer; placing the planar precursor under constraint and heating it to a molding temperature below 300°C to soften the planar precursor, cause a shape memory phase transition or crystal structure transformation, and shape it into a stent structure using a mold; wherein, the non-conductive material layer maintains structural integrity and insulation properties at the molding temperature, the non-conductive material layer has windows for exposing the electrode unit, and the non-conductive material layer covers the conductive wire unit, thus avoiding thermal damage to the non-conductive material layer caused by high-temperature processes.

A package comprising a plurality of transverse strips intersecting a plurality of longitudinal strips, each of the longitudinal strips comprising two intermittently adhered films forming a channel at a discontinuity in adhesion between the films, wherein at least one transverse strip passes through at least one of the channels of at least one longitudinal strip at at least one intersection of the longitudinal and transverse strips.

This disclosure provides a composite material comprising a mesh, pad, or grid to a nonwoven fiber outer layer, which can be configured for a variety of applications and products. The composite material includes a first mesh layer comprising intersecting filaments and a second layer in contact with the first layer. The second layer comprises a first fiber component and a second fiber component. The melting point of the first fiber component is at least 20 degrees Celsius higher than that of the mesh. The melting point of the second fiber component differs from that of the fibers in the mesh layer by less than 20 degrees Celsius. This allows the second fiber component to be thermally bonded to the mesh at the contact points when heat and pressure are applied. The first fiber component does not substantially undergo thermal bonding with the mesh, thereby forming an outer layer that protects the mesh layer, such as a sheath.

The application relates to a forming method of a medical stent. The forming method is used for processing the medical stent, and the forming method comprises the following steps: a plurality of first wires are at least partially interwoven with a plurality of second wires along a first direction to form a mesh, so that a first preliminary blank is obtained; the first preliminary blank is heat set, so that a second preliminary blank is obtained; and the intersection nodes of the first wires and the second wires are fixed to fix the first wires and the second wires, so that a third preliminary blank is obtained. The forming method of the medical stent can effectively stabilize the shape of the whole mesh structure after interweaving, eliminate the interweaving stress, greatly enhance the overall structural strength and connection reliability of the stent, prevent the mesh structure from being loose and deformed during use, gradually optimize the structural performance of the stent through the step-by-step forming process, take into account the flexible implanting characteristics and the structural stability during long-term use of the stent, and effectively improve the finished product quality and the clinical use safety of the medical stent.

This invention provides a processing method for high-strength wear-resistant screen plates. Belonging to the technical field of polyurethane screen plates, this invention utilizes a steel wire skeleton embedded in a mold. Polyurethane compound and thermoplastic polyurethane elastomer are mixed in an internal mixer and then molded in a compression molding machine. Simultaneously, carbon black is added for filling during the compression molding process. This allows for the production of high-strength, wear-resistant, and elastic polyurethane compound screen plates, similar to conventional rubber processing machinery. This type of screen plate offers advantages such as high operating temperature, leveraging the high open area of ​​the steel wire and the excellent cushioning and shock absorption properties of the polyurethane compound and thermoplastic polyurethane elastomer after mixing. Therefore, it provides significant vibration reduction and noise reduction, while also extending the service life of the stainless steel screen plate.

A method for manufacturing screen fabric to be installed on a screen golf course is presented. This method includes the steps of: manufacturing a fabric body having a predetermined area by processing a biodegradable resin (PLA: Polylactic acid) into yarn and weaving it; and a coating step in which a coating liquid is applied to at least one of the two surfaces of the fabric body to form a coating layer, and at least one gap is formed in the coating layer to expose the fabric body.

The embodiment of the application discloses a low-temperature grid plate and a preparation method and application thereof; the method comprises the following steps: S1, providing a three-dimensional grid substrate; the three-dimensional grid substrate is prepared from biocompatible fibers and has elasticity and a three-dimensional hole structure; S2, providing a low-temperature thermoplastic substrate; S3, at least one layer of the three-dimensional grid substrate is overlapped with at least one layer of the low-temperature thermoplastic substrate to perform hot pressing, the three-dimensional grid substrate is moderately compressed, the low-temperature thermoplastic substrate is melted and permeates into the three-dimensional hole structure of the three-dimensional grid substrate, and a composite intermediate plate is formed; S4, the composite intermediate plate is heated in a state of removing pressure, the three-dimensional grid substrate rebounds and recovers, the melted low-temperature thermoplastic substrate is stretched and shaped, and a low-temperature grid plate is obtained; and S5, the low-temperature grid plate is heated to a set temperature, the low-temperature thermoplastic substrate is heated and shaped again, is uniformly coated on the surface of the substrate of the three-dimensional grid substrate, and the low-temperature grid plate with the three-dimensional hole structure is obtained.

The application belongs to the technical field of water inlet grid and specifically relates to a preparation method of a low-dissolution acid and alkali resistant water inlet grid. Steps are as follows: base resin is added to a main material hopper of an extruder, and additives are added to a side feeding hopper; the melt is uniformly mixed and forwarded with the screw, and then enters a rotating die head through a vacuum extraction device at the rear end of the extruder to obtain a grid pre-product which is shaped through cooling water shaping and winding to complete the preparation of the water inlet grid; wherein the additives include one or more of lubricants, antioxidants and nucleating agents; and the base resin includes one or more of PP and HDPE. The prepared water inlet grid can maintain the existing structural functions, and the dissolution performance and acid and alkali resistance of the product are improved, so that the increasingly stringent application scenarios can be met.

A recycling process for processing wet plastic nets materials, particularly fishing nets, comprises a step of comminuting the plastic nets material to provide a shredded plastics material, and a step

This utility model belongs to the field of fiberglass grating processing, specifically relating to a wiring device used in fiberglass grating processing. It includes symmetrically arranged suspensions, with a wiring cylinder passing through the middle of the suspensions, and a wiring end tube connected to the lower end of the wiring cylinder. The wire guiding mechanism includes a wheel frame mounted on the upper part of the wiring cylinder, with a built-in axle. A rotatable wire guiding wheel is fitted onto the outer wall of the axle, and a transmission wheel installed inside the wiring cylinder is located below the wire guiding wheel. The wire pressing mechanism includes cylinders mounted on both sides of the suspension. During cable laying, the wire pressing mechanism presses the cable into the slot of the fiberglass grating mold. Since gas enters during cable insertion, the convex ball of the vibration mechanism vibrates the laid cable, releasing the gas and simultaneously compacting the molten material, thus improving the forming quality of the fiberglass grating after cable laying.

This invention relates to the field of mold ejection mechanism technology, and more particularly to an ejection device suitable for horn mesh. The device includes a template and multiple ejector pins; the multiple ejector pins are inserted into the template. The characteristic feature of this invention is that each ejector pin includes an ejector rod and an ejector head; the ejector end of the ejector rod is provided with a herringbone-shaped groove; the herringbone-shaped groove divides the lower end of the ejector rod into a first connecting part, a second connecting part, and a third connecting part; the ejector head has a herringbone shape that matches the herringbone-shaped groove structure, and the ejector head is inserted into the herringbone-shaped groove of the ejector rod, and the ejector head is fixedly connected to the ejector rod. The advantage of this invention is that it can effectively and accurately eject the horn cover, preventing ejection pits or perforations, thus improving product quality.

This invention provides an ejection mechanism for a speaker grille injection mold, belonging to the field of injection molding technology for automotive plastic interior parts. The ejection mechanism of this speaker grille injection mold includes a lower mold plate, a speaker grille forming insert, a side plate, and a bottom plate. A molding cavity is formed on the upper surface of the lower mold plate. The speaker grille forming insert is embedded and fixed within the molding cavity. A mounting plate is fixed to the upper end of a lifting plate. A lifting groove is formed on the lower end face of the lower mold plate. A support plate is fixed at the opening of the lifting groove. A drive plate and an ejector plate are provided within the lifting groove. The ejector plate is fixed to the upper end of the drive plate. Several linkage rods connect the lifting plate and the ejector plate. A spring is provided between the drive plate and the support plate to push the ejector plate upward. Ejector pins and ejector plates are fixed on the ejector plate, passing through the speaker grille forming insert and contacting the molding cavity. Due to the spring, drive plate, and linkage rods, the spring's extension force acts on the ejector pins and ejector plates, resulting in smooth ejection, uniform force distribution, and reduced risk of product damage.