摘要:
Rubber articles such as tires, hoses and lining sheets comprising glass flakes exhibit improved fluid impermeability. Methods for the manufacture of such rubber articles are disclosed.
摘要:
Mandrels of various configuration, and action, including collapsible mandrels, to be used in forming composite articles with preselected three dimensional shapes and construction are disclosed and described. In one aspect, such a mandrel may have a plurality of discrete segments coupled about a longitudinal axis and collectively forming an enclosure with a substantially continuous exterior working surface. The working surface can have a network of intersecting grooves formed therein, and such grooves can cooperatively establish a substantially continuous interconnected lattice corresponding to the three dimensional geometric configuration to be imparted to a composite article formed. The mandrel may optionally include a removable core assembly to aid in collapse of the mandrel.
摘要:
Molded articles are described herein having a surface feature thereon, the articles being formed so as to include a polymeric composite material having reinforcing fibers in a polymeric matrix material. The surface feature(s) is created during heat molding of the polymeric composite material to form the article and the surface feature(s) include the polymeric matrix material and the reinforcing fibers therein. A method is also described which provides surface feature(s) to a molded article by providing a composite material as noted, placing the composite material in a mold for forming an article having a surface feature thereon, and molding the composite material using bladder inflation molding and pushing the reinforcing fibers into the surface feature of the molded article during molding using a heat molding process having a bladder inflation molding step, wherein the surface feature is created during the molding of the polymeric composite material to form the molded article and the reinforcing fibers are present in the polymeric matrix material defining the surface feature in the molded article.
摘要:
The present disclosure is drawn to a lattice support structure, comprising a plurality of fiber-based cross supports intersecting one another to form a multi-layered node. The multi-layered node can be consolidated within a rigid mold in the presence of resin, heat, and pressure. In another embodiment, a lattice support structure can comprise a first cross support comprising fiber material; a second cross support comprising a fiber material, said second cross support intersecting the first cross support; and multi-layered nodes located where the first cross support intersects the second cross support. The multi-layered nodes can comprise at least two layers of the first cross support separated by a least one layer of the second cross support. Also, one of the first cross support or the second cross support can be curved from node to node.
摘要:
Articles including a primary composite structure having a circumference, at least one mounting flange operably connected to the primary composite structure about the circumference, the mounting flange having at least one circumferentially oriented core fiber.
摘要:
According to one aspect of the present invention there is provided an acoustic laminate suitable for use in wall, floor and ceiling assemblies and other dividing structure assemblies, the laminate including: a viscoelastic acoustic barrier being in the form of discrete, spaced apart sections or a continuous layer; and a construction panel, the barrier affixed to one or more panel faces of the construction panel.
摘要:
Glasses comprising Bi203, ZnO B203 and optionally a colorant including an oxide of a metal such as iron, cobalt, manganese, nickel, copper and chromium are suitable to form hermetic seals in solar cell modules, architectural glass windows and MEMS devices. Glass frit and paste compositions suitable for flow and bonding to various substrates—glass, metal, silicon, in the temperature range of 400-500 degrees Centigrade. The broad compositional range in mole % is 25-70% Bi203, up to 65% ZnO, and 1-70% B203. Such glasses do not have batched in alumina or silica. Such glasses lack alumina and silica.
摘要翻译:包括Bi 2 O 3,ZnO B 2 O 3和任选的包含金属如铁,钴,锰,镍,铜和铬的氧化物的着色剂的玻璃适合于在太阳能电池模块,建筑玻璃窗和MEMS装置中形成气密密封。 在400-500摄氏度的温度范围内适用于各种基材(玻璃,金属,硅)流动和粘合的玻璃料和糊状组合物。 摩尔%的广泛组成范围是25-70%Bi 2 O 3,高达65%的ZnO和1-70%的B 2 O 3。 这种玻璃没有在氧化铝或二氧化硅中分批。 这种玻璃缺乏氧化铝和二氧化硅。
摘要:
Metal-coated polymer articles containing structural substantially porosity-free, fine-grained and/or amorphous metallic coatings/layers optionally containing solid particulates dispersed therein on polymer substrates, are disclosed. The substantially porosity-free metallic coatings/layers/patches are applied to polymer or polymer composite substrates to provide, enhance or restore vacuum/pressure integrity and fluid sealing functions. Due to the excellent adhesion between the metallic coating and the polymer article satisfactory thermal cycling performance is achieved. The invention can also be employed as a repair/refurbishment technique. The fine-grained and/or amorphous metallic coatings are particularly suited for strong and lightweight articles, precision molds, sporting goods, aerospace and automotive parts and other components exposed to thermal cycling and stress created by erosion and impact damage.
摘要:
A rocket motor assembly is insulated or thermally protected with a rocket motor ablative material formed from a prepreg. The prepreg contains at least an impregnating resin matrix and, as a precursor prior to carbonization, carded and spun staple cellulosic fibers. When patterned and carbonized, the rocket motor ablative material can be lined or otherwise placed into a rocket motor assembly, such as between the solid propellant and case, in the bulk area of the exit nozzle liner, or at susceptible portions of a re-entry vehicle, such as the nose cone.
摘要:
An article coated with a highly durable, wetting resistant coating is provided. The article comprises a coating that comprises a cermet material. The cermet material includes a nickel-bearing metal matrix and a phase disposed within the matrix. The phase includes an anion moiety, for example nitrogen, carbon, or boron; and a cation moiety, for example chromium, zirconium, titanium, vanadium, hafnium, niobium, or tantalum. The phase is present in the cermet at a level of at least about 5 volume %.