摘要:
Methods 100 of manufacturing rotor blade components for a wind turbine 10 using pre-cured, prefabricated plates constructed of multiple fiber materials are disclosed. In one aspect of the present disclosure, the method 100 includes providing a plurality of pultruded members 40. Each of the pultruded members 40 includes, at least, first and second fiber materials 46,48, wherein the first and second fiber materials 46,48 include at least one of different sizes or different types of fiber materials. Another step includes arranging the plurality of pultruded members 40 into one or more layers 38. A further step includes joining the layers 38 of pultruded members 40 together to form the rotor blade component.
摘要:
The present invention relates a double-latch closing system which may be advantageously applied to aeronautical devices such as trolleys, ovens, waste compactors, galley inserts and standard units Particularly preferred is the use of said closing system for aviation trolleys made with ultralight composite panels having superior mechanical properties as regards aeronautical standards. The panels may be advantageously used to construct food and beverage trolleys to be used in the aviation sector.
摘要:
Disclosed are an annular fibre preform and a method of preparing same. The preform is formed by superposing and needle-punching annular units (5) containing an annular composite fabric (4), and the annular composite fabric (4) is shaped by needle-punching sector-shaped fibrous fabric (3) of the same type as an annular fibre mesh tyre (1) in advance. The method of preparing a preform involves an annular fibrous fabric (2) of spliced sector-shaped fibrous fabric being needle-punched in advance with an annular fibre mesh tyre(1) and fixedly joined into an annular composite fabric (4), and then needle-punching and forming annular units (5) to realize the preparation of the annular fibrous preform. The present method effectively eliminates the occurrence of deformation and misplacement of sector-shaped spliced fibrous fabric during needle-punching at a later stage such that the uniformity and consistency between layers and within surfaces are good, and has advantages such as high fiber content, excellent mechanical performance, and a high utilization rate of raw material, so that the friction performance of friction material is improved after a C/C composite is formed, and the combination property is excellent. The method can be applied to the production of composite material preforms for aircraft brake discs, and can also be applied to the production of friction material preforms in baking systems of high-speed trains and high-end automobiles.
摘要:
The present invention provides a method for producing an absorbent sheet containing absorbent resins, hydrophilic fibers, and hydrophobic fibers, comprising: a dehydration step of dehydrating the absorbent resins and the hydrophilic fibers from a state of being in contact with each other and containing water to obtain composite compositions; and a sheet-forming step of forming a sheet of the composite compositions and the hydrophobic fibers by heating while bringing the composite compositions and the hydrophobic fibers into contact with each other.
摘要:
The present invention provides a method for producing an absorbent sheet containing absorbent resins, hydrophilic fibers, and hydrophobic fibers, comprising: a dehydration step of dehydrating the absorbent resins and the hydrophilic fibers from a state of being in contact with each other and containing water to obtain composite compositions; and a sheet-forming step of forming a sheet of the composite compositions and the hydrophobic fibers by heating while bringing the composite compositions and the hydrophobic fibers into contact with each other.