115 results about "Composite liner" patented technology

A method for producing a customized helmet including a computer designed composite helmet liner to be incorporated into existing and new helmet designs is provided by scanning a user's cranial region, creating a computer rendering surface model of the scan, modifying the surface model using computer aided design software, overlaying and aligning an outer helmet shell model onto the modified cranial model to define the custom liner three-dimensional space to configure the composite liner with a software algorithm including shock absorbing segments having optimal sizes, shapes, and materials, fabricating the liner in a heat sealing process to include an optional encapsulating or serial air bladder, and assembling the liner and outer helmet shell together.

The present invention relates to geotextile/polyurethane/polyurea and/or geotextile/polyurea composites prepared by soaking geotextiles with one-component heterogeneous liquid polyurethane compositions and subsequently curing by heat or solvent addition to form a geotextile/polyurethane composite. The inventive composites may find use as liners for canals and ditches for irrigation and wastewater, roof membranes, secondary containment, etc.

The invention relates to a composite liner structure of a four-track large-span wall-foundation arched tunnel. According to the composite liner structure provided by the invention, subsidence of an arch crown of a four-track large-span tunnel can be effectively controlled, and crack of a liner, even a tunnel collapse accident caused by subsidence of an arch springing and deformation of the arch crown can be avoided so that the stability and the safety of tunnel construction and operation are ensured. The composite liner structure comprises a forepoling structure, a preliminary poling structure and a secondary liner structure which are arranged from inside to outside. The secondary liner structure comprises a secondary liner structure (31) at an arch part, wall-foundation structures (32) at two sides of a tunnel and an inverted arch; the forepoling structure comprises a forepoling structure (11) at the arch part and forepoling structures (12) on the side walls of a wall foundation; the preliminary poling structure comprises preliminary poling structures (21) at the arch part and preliminary poling structures (22) on the side walls of the wall foundation; and the lower ends of the preliminary poling structures (21) at the arch part and the secondary liner structure (31) at the arch part are respectively supported at the upper ends of the wall-foundation structures (32) at two sides of the tunnel.

A composite lined tube is disclosed having end couplings. The tube includes a resin impregnated fiber preform pressed progressively along an inner wall of the tube. The tube may further include an inflatable bladder inserted into the tube. The bladder is adapted to inflate along a length thereof on application of increasing pressure to the interior of the bladder. The bladder has disposed on its exterior surface the fiber preform impregnated with resin, which is adapted to fit within the tube. The bladder is then inflated along its length by applying increasing pressure to the bladder. The preform is clamped to a shoulder of one of the couplings at another end of the tube, and the end of the preform is trimmed to conform to the shoulder. Pressure is maintained in the bladder while curing the resin.

A method for repairing and strengthening pipes by creating a structural reinforced composite liner within the existing pipe. The liner is created by helically winding a tensile reinforcement material on the inside wall of a pipe and encapsulating it in a hardening matrix material. The reinforcement material is helically wound around the inside wall of the pipe by an installation device. The installation device is configured to relieve and/or prevent the development of torsional stress in the reinforcement material that is created by the act of helically winding it onto the inside wall of a pipe, allowing the reinforcement material to lay flat against the pipe wall without twisting or buckling. The structural reinforced composite can be configured to supplement the strength of the existing pipe or to function as a stand-alone pipe within the existing pipe.

A thermoplastic composite liner for use as an inner wall of a trailer. The thermoplastic composite liner includes a glass reinforced thermoplastic sheet permanently affixed to a glass reinforced thermoplastic scuff panel along a length of the scuff panel by ultrasonic welding. The scuff panel is positioned relative to the thermoplastic sheet such that an edge portion of the thermoplastic sheet overlaps an edge portion of the scuff panel along the length of the scuff panel, the ultrasonic welding forming a weld joint between the overlapping edge portions of the thermoplastic sheet and the scuff panel along the length of the scuff panel. Preferably, the thermoplastic sheet and the scuff panel are fabricated of fiberglass reinforced plastic, such as polypropylene resin reinforced with glass fiber and the glass reinforced thermoplastic scuff panel includes fibrous material on one side of the scuff panel, the scuff panel being positioned such that the fibrous material side of the panel faces the thermoplastic sheet during the ultrasonic welding.

The invention discloses a method for manufacturing a TiC hard alloy composite grinding roller. The method includes the following steps that TiC hard alloy material and binder are evenly mixed to obtain a mixture; a cavity of a die of a press is filled with the mixture for forming, the die is released, and after the mixture is sintered, cooled and taken out of the furnace, TiC hard alloy prefabricated members are obtained; the prefabricated members are sand-blasted and preheated, the die is assembled, molten abrasion-resistant alloy is poured into a casting cavity, and composite abrasion-resistant liner plates with the surface of the abrasion-resistant alloy and the surface of the TiC hard alloy metallurgically bonded are obtained after cooling is performed; after being preheated, the composite abrasion-resistant liner plates are evenly distributed on and fixed to the surface of the grinding roller casting cavity in the circumferential direction, after the die is assembled, molten matrix material is poured into the casting cavity, and the TiC hard alloy composite grinding roller is obtained after cooling is performed. The composite grinding roller matrix material is good in tenacity; a dovetail type structure is adopted for the composite abrasion-resistant liner plates so that the composite abrasion-resistant liner plates can be firmly combined with the matrix, and thus not only can good tenacity of the matrix of the grinding roller guaranteed, but also high abrasion resistance of the composite liner plates can be guaranteed.

A multi-layered, structural, corrosion resistant composite includes, in an exemplary embodiment, a core layer having a first surface and an opposing second surface, a first fiber reinforced layer bonded to the first surface of the core layer, a second fiber reinforced layer bonded to the second surface of the core layer, and a corrosion resistant thermoplastic liner layer bonded to the second fiber reinforced layer. The core layer is formed from a closed cell polymeric foam.

A super-high molecular weight polyethylene composite lining plate is formed by the following materials: super-high molecular weight polyethylene, reinforced polyamide, filled polytetrafluoroethylene, coupling agent, ultra-fine active magnesium hydrate powder and universal coupling agent. The horizontal and longitudinal molecular chain of the invention are compact regular shape, and molecular cross chains are compact irregular shape, thereby increased the property of products at large maximum, especially heat-proof property and abrasion-resistance compared with pure super-high molecular weight polyethylene products. The thermal deformation temperature of the invention can reach over 210 DEG C (0.45MPa, GB/T1634-2004), and abrasion value is lower 1.60*10-5g/cm2 (GB/T4085-1983). The super-high molecular weight polyethylene composite material which has high thermal deformation temperature and high abrasion resistance can be used as stock house lining plates in coal mine, metallurgy, grain processing, salt-making, cement, ports or flow process lines of light industry.

A shaped charge having a charge case and liner with an outer layer and an inner layer. The liner is a generally hollow frustoconically shaped member with an open end and a closed end, where the closed end of the liner inserts into an opening in the charge case. An explosive is provided between the liner and the charge case. The inner layer of the liner includes a higher density material than material used for forming the outer layer.

The invention relates to a preparation method of a composite liner, belonging to the field of composite liners. According to the preparation provided by the invention, metal or alloy powder is uniformly spread on the outer side of a liner by laser cladding while the material cladding is realized through a laser; or after the metal or alloy powder is uniformly spread on the outer side of the liner, the material cladding is realized through a laser so as to realize metallurgical bonding of the liner and the metal or alloy powder to obtain the composite liner. The problems of the existing composite liner preparation technology are perfectly solved. According to the preparation method provided by the invention, the production cost is reduced while the liner performance is guaranteed, and the thickness of the composite liner can be controlled.

The invention discloses a preparation method of a ZTA particle enhanced steel-based composite liner plate based on chemical activation treatment. The preparation method comprises the following steps: (1) carrying out high temperature salt-bath plating on ZTA particles, and obtaining uniform titanium plated layers on the surfaces of the ZTA particles; (2) forming nickel layers at the peripheries of the titanium plated layers; (3) sintering the plated ZTA particles, and mutually connecting the ZTA particles to form a porous prefabricated part; and (4) fixing the prefabricated part on the end surface or the working surface of a cast, pouring a steel base material metal solution through a casting-penetrating process, and carrying out cooling to obtain the ZTA particle enhanced steel-based composite liner plate. During the salt-bath titanium plating, titanium and the surfaces of the ZTA ceramic particles form metallurgical bonding, so that the interfacial bonding property between the titanium layers and the ZTA ceramic particles is enhanced. The ZTA ceramic particles subjected to the salt-bath titanium plating is then subjected to chemical nickel plating, and a titanium-nickel alloy can be generated at a titanium-nickel bonding part; and the titanium-nickel alloy layers achieve the effect of a flexible transitional layer between a metal base body and the ZTA particles, so that the bonding strength of the interface is greatly enhanced.

Chutes and other components may include composite liners to improve performance. Composite liners generally comprise a base metal having a ceramic material embedded therein. The composite liners exhibit improved resistance to wear and, therefore, have a longer usable life than liners formed of the base metal alone.

A method for repairing and strengthening pipes by creating a structural reinforced composite liner within the existing pipe. The liner is created by helically winding a tensile reinforcement material on the inside wall of a pipe and encapsulating it in a hardening matrix material. The reinforcement material is helically wound around the inside wall of the pipe by an installation device. The installation device is configured to relieve and/or prevent the development of torsional stress in the reinforcement material that is created by the act of helically winding it onto the inside wall of a pipe, allowing the reinforcement material to lay flat against the pipe wall without twisting or buckling. The structural reinforced composite can be configured to supplement the strength of the existing pipe or to function as a stand-alone pipe within the existing pipe.

An enhanced composite liner system to be employed under waste management units and comprised of an upper flexible membrane liner component (2), an intermediate bentonite layer component (3), and a lower compacted soil liner component (1). The bentonite layer component (3) is bonded to the flexible membrane liner component (2). The flexible membrane liner component (2) utilizes overlapping seams (4) sealed by the bentonite layer component (3) to join the sheets or panels of the flexible membrane liner. The overlapping seams (4) are arranged shingle fashion in the downslope direction of the liner surface. The use of the bentonite layer component enhances direct and uniform contact between the flexible membrane liner component (2) and the underlying compacted soil liner component (1).

The invention discloses a composite liner for a ball mill and a manufacturing method thereof. The composite liner for a ball mill comprises a plate body with installation holes, and the plate body includes a metal bottom layer and a plastic layer compounded on the metal bottom layer. The manufacturing method of the composite liner of the ball mill comprises the following steps: a. preparing a metal bottom layer; b. compounding a plastic layer on the metal bottom layer; and c. cooling to complete. The composite lining plate of the ball mill of the invention has the advantages of high strength, good wear resistance, and not easy to break and crack.

The invention discloses a composite liner for ball mills comprising an upper layer of alloy cast steel bonded on a symmetrically distributed lower rubber surface, said cast steel layer is prefabricated so as to form the desired profile on the upper surface of the said liner required for specific grinding operations. The present invention also discloses a method of manufacturing composite mill liner.