132results about How to "High bonding strength between layers" patented technology

The invention relates to a manufacturing method which utilizes waste residue to produce regenerated yarn cop base paper and an obtained product thereof. The method comprises the following steps: the full stuff of processed waste slurry residue and the full stuff of processed waste paper are mixed according to proportion to carry out sand paper tube forming and then the regenerated yarn cop base paper is obtained. By adopting the method, waste paper resources can be saved, waste water treatment can be reduced, and the obtained regenerated yarn cop base paper has the advantages of low ration, good quality and the like.

The invention relates to a stirring friction forging additional material manufacturing method and device of nano reinforcing composite materials. The device comprises four parts including a stirring friction additional material main shaft, an isothermal forging mechanism, a gantry type rack and a workbench; the stirring friction additional material main shaft is used for realizing mixing, preheating and supplying of powder or granular materials, conducting friction squeezing of materials output from a material supplying hole, and using friction heat and pressure to realize layer-by-layer additional material forming manufacturing; the isothermal forging mechanism is used for realizing isothermal forging and micro reshaping of an additional material layer; the gantry type rack is used for fixing the stirring friction main shaft and the isothermal forging mechanism and for realizing advancing as well as swaying angle adjustment of the stirring friction main shaft and the isothermal forging mechanism along the Y axis and the Z axis; and the workbench is used for fixing a substrate and realizing advancing of the substrate along the X axis. The method and the device can realize high-efficiency and high-quality additional material manufacturing of light alloy powder or granular materials, and have the advantages of higher efficiency, simple and convenient operation and lower energy consumption.

Relating to the field of composite materials, the invention discloses a composite material, a preparation method and application thereof. The preparation method of the composite material includes: gluing a fiber layer to at least one side surface of a thermoplastic sheet or metal sheet through an adhesive to form a preform, then employing two-component polyurethane resin for resin transfer moldingon the fiber layer surface of the perform so as to form a polyurethane-fiber layer together with the fiber layer. Specifically, the two-component polyurethane resin contains a polyol component and apolyisocyanate component. The preparation method for the composite material provided by the invention not only can ensure no springback of fiber cloth, but also can acquire good surface quality, and the obtained product has very high transparency, scratch resistance and interlayer bonding strength.

The invention discloses a composite material reinforced by a hybrid fiber preform. The composite material is composed of the fiber preform, a composite material interface and a ceramic matrix, the fiber preform is a three-dimensional fabric formed by hybrid weaving of 2-5 kinds of high-performance inorganic fibers, and the matrix is resin, light alloy, carbon and ceramic. A preparation method of the composite material comprises the steps of ceramic slurry preparation, fiber bundle dipping treatment, fiber weaving, three-dimensional integral structure preform forming, preform heat treatment, interface preparation and matrix preparation. The weaving performance of the inorganic rigid fibers is improved, the prepared composite material is good in integrity, high in interlayer bonding strength and not prone to layering, meanwhile, the functions of wave transmission, wave absorption, high-temperature structural material, heat insulation and heat protection are achieved through combination of the hybrid fibers, and integration of the structure and the function is effectively achieved.

The invention discloses a glass steel tube produced in a continuous winding process. The glass steel tube comprises an inner liner layer, a structural layer and an outer protection layer. The structural layer is formed by multiple long fiber layers and multiple short fiber layers at intervals in the vertical direction in a staggered and combined mode. Each long fiber layer comprises long cut glass fibers and resin, and each short fiber layer comprises short cut glass fibers, quartz sand and resin. The glass steel tube is manufactured in the continuous winding process with the resin serving as a substrate, the glass fibers as reinforced materials and the quartz sand as stuffing. Meanwhile, due to the facts that the structural layer is formed by the multiple long fiber layers and short fiber layers in a staggered mode and combination strength between the layers is high, the overall strength and rigidity of the glass steel tube are strong. Meanwhile, the glass steel tube has strong corrosion resistance and flexibility, stretching strength is much more excellent than that of an existing product, and service life of the glass steel tube can be more than 50 years.

There is provided a multilayer bottle including an outermost layer and an innermost layer which are each made of a thermoplastic polyester resin, and at least one barrier layer interposed between the outermost layer and the innermost layer. The barrier layer contains at least two components including a polyamide obtained by polycondensing a diamine component containing m-xylylenediamine as a main component with a dicarboxylic acid component containing an α,ω-linear aliphatic dicarboxylic acid as a main component, and a thermoplastic resin having a lower molecular weight than that of the polyamide. The multilayer bottle hardly suffers from delamination upon impact or dropping and, therefore, is not required to have a shape with less irregularities or less bends for preventing the delamination, and further has a large freedom of design choice.

The invention discloses a free roll bending equipment for super-hybrid composite layer plates and a forming method. The super-hybrid composite layer plates are of lamination structures of metal layers and fiber reinforced resin base composites, and the forming method comprises six procedures, namely spraying glue and feeding, hot rolling, free roll bending, water cutting and pressure maintaining cooling; the free roll bending operation is achieved by rotating of a bending roll shaft and revolving around an fixing roll shaft of the bending roll shaft, the bending curvature is determined by the radius of the fixing roll shaft, and the bending angle is determined by the revolution angle of the bending roll shaft; and after an bending component is subjected to free roll bending, the bending component is placed in a closed container with a constant pressure to conduct heat insulation and is cooled to a room temperature. According to the free roll bending equipment for the super-hybrid composite layer plates and the forming method, preparation and bending formation of the super-hybrid composite layer plates are integrated, manufacturing cost and time is reduced by a large margin, and the free roll bending equipment for the super-hybrid composite layer plates and the forming method have the advantages of being high in interlayer combination strength, high in forming precision, high in degree of automation and high in designability.