786 results about "Glass fabric" patented technology

A high-frequency module having a communication function is provided which includes a base substrate block (2) formed from organic substrates (11, 12), the organic substrate (11) having wiring layers (14, 15) formed on main sides, respectively, thereof while the organic substrate (12) has wiring layers (16, 17) formed on main sides, respectively, thereof, the base substrate block (2) having a buildup surface formed by flattening an uppermost layer, and an elements block (3) formed from organic insulative layers (26, 28) formed on the buildup surface of the base substrate block (2) and in which a plurality of conductive parts (19, 20, 32) forming passive elements and distributed parameter elements, which transmit a high-frequency signal, are formed along with wiring layers (27, 29). The conductive parts (19, 20, 32) in the elements block (3) are formed correspondingly to portions of the organic substrate (11) in the base substrate block (2) where no woven glass fabric is laid.

The invention provides a preparation method of a bonding sheet forming a circuit substrate. The method comprises a step of pretreating a glass fabric by use of a pretreatment glue solution of which the dielectric constant (Dk) is the same with or close to the Dk value of the adopted glass fabric. The invention also provides a bonding sheet and a circuit substrate prepared by the method. The preparation method of the circuit substrate provided by the invention does not need equipment transformation and adjustment, the cost is relatively low, the difference of the dielectric constant of the prepared circuit substrate in the longitudinal direction and latitudinal direction is less, and the problem of signal delay can be effectively solved.

The present invention provides glass fiber fabric reinforcements, cement boards, and glass fiber coatings for such reinforcements. The glass fiber fabric reinforcement includes a glass fabric containing multiple yarns containing glass filaments and a polymeric coating disposed onto the multiple yarns to form a coated glass fabric. The polymeric coating comprises a polyolefin based copolymer composition whereby the glass fabric has a Gurley Stiffness measurement of about 100-3000 mg and an ASTM D 638 (2% Secant) modulus of compression of about 1-100 MPa. The reinforcement is sufficiently drapable and lacking in shape memory so as to be curved around the edge of a cement board during the manufacture of same.

The invention discloses a duct piece floating resisting structure capable of passing through a mine tunnel through shield empty pushing and a construction method. The duct piece floating resisting structure comprises a grouting bag body arranged between a mine tunnel primary lining and a shield duct piece, wherein the open end of the grouting bag body extends out of a grouting hole of the shield duct piece; a dual-liquid grouting duct member with threads can be screwed into the grouting hole of the shield duct piece; cement slurry and water glass are simultaneously injected into the grouting bag body through the dual-liquid grouting duct member; a cloth bag can restrain a range of formation of a floating resisting structural body, so that the block-shaped floating resisting structural body which has certain intensity and with which a gap between the mine tunnel primary lining and the shield duct piece is filled can be effectively formed; the gap between the mine tunnel primary lining and the shield duct piece is filled with the floating resisting structural body in a block-shaped surface contact manner, so that cracking and deformation of the duct piece due to local stress concentration can be effectively prevented; meanwhile, three floating resisting structural bodies which are arranged in a spacing manner at the upper part of the shield duct piece are relatively large in range, so that a tunnel can be well wrapped and tightened, and displacement and deformation of the shield duct piece are completely limited.

The preparation method for benzoazine with aralkyl group comprises: adding phenols compound as 80-100 weight shares and 80-120 aralkyl compound into the reaction kettle; with 1-4 acidic catalyst, stirring to react for 1-3h at 80-140Deg; cooling to below 50Deg; adding 30-40% formaldehyde liquid as 160-360 weight shares and 4-8 basic catalyst to adjust pH value within 6-9; adding solvent and 40-120 diamine to reflux reaction for 2-8h at 85-95Deg; finally, vacuum dewatering at 80-40Deg. This product is used mainly to manufacture high-performance constructional material fit more than 180Deg, the electrically insulating material, or glass fabric and extruding material with vitrifying temperature more than 175Deg.

A production method of a semi-flexible printed circuit board comprises the following steps of: (1) preparing a sheet metal; (2) dividing the sheet metal into a molding area and a shaping area; (3) dividing the molding area into a plate area and a flexible area in advance in the molding area; (4) processing the sheet medal as follows: (4.1) processing of the pattern of the sheet metal and (4.2) processing the flexible bent area of the sheet metal so that the flexible area becomes thinner and can be bent; and (5) removing the shaping area and getting the semi-flexible printed circuit board. The invention adopts cheap general rigid materials such as glass fabric-epoxide resin copper pour foil, and the like to replace expensive flexible copper pour plate materials such as polyimide, and the like, thereby greatly reducing the cost. At the same time, the invention has the advantages of simple machinery process, high rate of finished products and high reliability. The semi-flexible printed circuit board produced by the method particularly suits vehicle-borne products with higher reliability requirement.

The invention discloses a method for producing a polyurethane plate for an automobile ceiling, which comprises the following steps: flatly laying non-woven fabrics on a caterpillar belt of a compound machine; sequentially scattering short-cutting glass fibre and hot-melting adhesive powder on the non-woven fabrics; then melting and compounding at 160-250 DEG C at the pressure of 0.2-1MPa, cooling and rolling to obtain an adhesive glass fabric; sequentially decoiling, stacking and flatly laying the adhesive glass fabric and a bonding film on a working platform of a compound production line from bottom to top and placing a polyurethane rigid foam plate; sequentially scattering short-cutting glass fiber and hot-melting adhesive powder on the polyurethane rigid foam plate; flatly laying the hot-melting adhesive film and heating to 160-250 DEG C by a heating plate of the compound machine; carrying out hot-press compounding at the pressure of 0.2-1MPa and cooling to obtain a polyurethane multilayer composite plate. The invention has simple production process and stable product quality and solves the problem of easy delamination of the polyurethane plate produced by the prior one-step method.

The invention provides a blade of a wind-driven generator. The blade comprises a housing, a web and a root flange, wherein the housing is divided into an upper housing and a lower housing which respectively comprise main beams, prefabricated components, root preformed parts and paving layers; each paving layer comprises a glass fabric, a balsa core and a foam core; the webs are positioned between the upper housing and the lower housing of the blade; and the root flange is adopted to connect the blade and a main body of the wind-driven generator. The invention also provides a manufacturing method of the blade of the wind-driven generator. The manufacture method comprises the following steps: preparing the root preformed parts, the main beams and the prefabricated components in individual dies; paving the root flanges, the root prefabricated parts, the main beams and the prefabricated components in a housing die together with the glass fabrics, the balsa cores, the foam cores and lightning rods; pouring resin into the housing die through a vacuum pouring technology so as to form the upper housing and the lower housing of the blade; integrally adhering the upper housing and the webs, and overturning the same for 180 degrees to adhere with the lower housing by closing the dies; and then removing the dies to obtain the blade of the wind-driven generator. The blade of the wind-driven generator manufactured by the method provided by the invention has the advantages of high stressing intensity and long service life.

A recyclable tufted carpet meeting EPA recyclable content standards and having improved dimensional stability that reduces skew, bow, and wrinkles during manufacture and installation is formed by combining prior art primary and secondary backings into a single, fiber-reinforced primary backing layer. Consolidating either a glass fiber fabric layer, a glass veil, or a glass mat with a fiber-reinforced extruded film forms the fiber-reinforced primary backing layer. An additional glass fabric fiber layer can also be introduced to the primary backing to provide additional dimensional stability.

The invention belongs to the technical field of an insulating material for a cable, and discloses a preparation method of a ceramifiable silicon rubber composite belt for a fire-resistant cable. The composite belt comprises a glass cloth reinforcing layer and a silicon rubber layer, wherein the silicon rubber layer is prepared from a ceramifiable silicon rubber composition which comprises organosilicon rubber compound and composite ceramic powder; and the weight ratio of the organosilicon rubber compound to the composite ceramic powder is 1:1-1.2. The preparation method comprises the following steps: preparing high-strength organosilicon rubber compound; preparing composite ceramic powder; performing silicone-acrylate emulsion treatment of glass cloth; and calendering the composite belt. The ceramifiable silicon rubber composite belt for the fire-resistant cable prepared by the method has extremely high strength and good flexibility and can be used for manufacturing the fire-resistant cable in place of a mica tape; after a cable lapped by using the ceramifiable silicon rubber composite belt is ablated for 180 minutes in flame of 650-950 DEG C, the circuit can still work normally; and the method is easy to operate, has high yield and can realize batch production.

The invention discloses a preparation method for high temperature-resistant waterborne polyurethane adhesive. The method comprises the following steps: preparation of base resin: generating a NCO-terminated prepolymer with butanone as solvent through the reaction between polyether glycol and diisocyanate, cooling, dripping chain extender, adding epichlorohydrin for terminal sealing, and then adding glacial acetic acid for adjusting the pH value in a range of 5 to 7, adding de-ionized water, stirring at a high speed for dispersing, adding treated nanometer silicon dioxide, adding antifoaming agent, and removing the butanone in vacuum to obtain the base resin of the high temperature-resistant waterborne polyurethane adhesive; and waterborne epoxy resin as curing agent is cross-linked with the base resin to obtain the adhesive. The cationic waterborne polyurethane adhesive, prepared by the method, has higher binding strength for composition of glass fabrics and PET (Polyethylene Terephthalate); as the epichlorohydrin is added in the system, the flame retardance of the adhesive is further improved; and as the epoxy resin is added, the high temperature resistance of the adhesive is improved; and the adhesive is waterborne polyurethane adhesive for the glass fabrics with excellent performance.

Disclosed is a method of manufacturing a colorless transparent polyimide film having impregnated glass fabric, wherein the surface of the polyimide film substrate having impregnated glass fabric is flattened by two flattening steps using a roll-to-roll process, thereby solving problems with an increase in surface roughness of the polyimide substrate when manufacturing the polyimide film having impregnated glass fabric in order to enhance thermal and mechanical properties of a film for use in flexible display substrates and in cover windows for flat panel displays and mobile phones. As the surface roughness of the polyimide film having impregnated glass fabric is flattened to the level of ones of nm from the level ranging of tens of nm to ones of μm, a thin film transistor process can be performed on the polyimide film substrate and the polyimide film is increased in optical transmittance and transparency and can thus be utilized as flexible display substrates and cover windows for flat panel displays and mobile phones.

The invention discloses a multifunctional magnesium oxysulfate ecological plate which comprises a base material, a framework material and a coating material, and is characterized in that the base material comprises the following components by mass percent: 100Kg magnesium oxide, 40Kg heptahydrate magnesium sulfate, 70 to 90Kg water, 0.6Kg modifier aluminium sulphate, 35Kg fly ash and 35 to 45 Kg saw dust; the skeleton layer of the multifunctional magnesium oxysulfate ecological plate is made of glass fabric and non-woven fabric; the coating material comprises the following components by mass percent: 100kg magnesium oxide, 400Kg heptahydrate magnesium sulfate, 45 to 55kg water, 0.6Kg modifier aluminium sulphate and 35Kg fly ash. Since the heptahydrate magnesium sulfate is used as a cementing material in the composition of the multifunctional magnesium oxysulfate ecological plate, defects of weak water resistance, moisture absorption and efflorescence, crack and deformation, insufficient rigidity and the like in a conventional glass magnesium board are overcome, and the flexibility and the durability of the plate are enhanced. The multifunctional magnesium oxysulfate ecological plate meets the decoration requirements of inner and outer walls, and has the characteristics of simplicity and convenience in construction, and wide application range.

The invention discloses a manufacturing method for a root part of a megawatt wind turbine blade, which comprises the following steps of: making a root part insertion component on an auxiliary mechanism; overturning and hanging the insertion component; because the curvature radius of the insertion component when hanging into a blade die is less than that of the blade die, the fabric of the root part insertion component can well adhere to the surface of the die; and continuously layering the left root part fabric on the surface of the inserted root part insertion component fabric; after the layering is completed, filling a resin under vacuum; and curing and shaping. Because the inserted insertion component is a dry fabric, the over 100 layers of fabric on the root part can be filled together, so the phenomenon that a dry area is easy to appear in a glass fabric under the cured insertion component is avoided. The manufacturing method avoids the phenomena, such as collapse, fold and the like, caused by directly layering by the traditional handwork and is an improvement on the conventional method.

The invention provides a lightweighting high-strength composite material vehicle shelter panel, which comprises a sheath, an intermediate foam interlayer, a peripheral bound edge and a structural adhesive. The sheath takes a carbon fiber satin fabric prepreg and a glass fabric prepreg as raw materials, a vacuum baking oven technology is employed for forming, the peripheral bound edge employs a U-shaped structure, the carbon fiber satin fabric prepreg is taken as a raw material, an autoclave technology is employed for forming, and the foam interlayer employs PVC foam. Compared with the prior art, the composite material sheath has small thermal conduction coefficient and zero thermal expansion coefficient, thermal stress between sheath and the epoxy structural adhesive is little, so that the sheath and the structural adhesive are difficulty to degum, and the degumming phenomenon due to thermal deformation under high temperature can be solved. sheath, foam and bound edge employ one shot forming, the surface is smooth and flat, the assembling part is less, assembling cost and assembling time are greatly reduced, daily maintenance is easy, the weight is light, bearing is large, and the impact intensity is high.

The invention discloses a magnesium oxysulfate board structure. The magnesium oxysulfate board structure comprises a middle-layer material (4), and is characterized in that first glass fabric (5) and a sanding layer (6) are sequentially arranged on the middle-layer material (4), and second glass fabric (3) and a bottom pulp layer (1) are sequentially arranged under the middle-layer material (4). The magnesium oxysulfate board structure has the beneficial effects that after sanding is conducted through a reasonable formula and processing technique, the thickness error of a board is reduced to be within +/-0.3 mm, using and deep processing in the later stage are facilitated, and the magnesium oxysulfate board structure is suitable for application and popularization.

The invention belongs to the technical field of a heat-conducting interface material, and discloses a ceramifiable silicon rubber composite belt, which comprises a glass cloth reinforcing layer and a silicon rubber layer, wherein the silicon rubber layer is prepared from a ceramifiable silicon rubber composition; the ceramifiable silicon rubber composition comprises organosilicon rubber compound and composite ceramic powder; the weight ratio of the organosilicon rubber compound to the composite ceramic powder is 1:1-1.2; the organosilicon rubber compound comprises vinyl terminated methyl vinyl silicon rubber, methyl vinyl silicon rubber, hydrogen containing silicone oil and fumed silica with different vinyl contents; and the composite ceramic powder comprises silicon carbide, alumina, zirconia, boron oxide and montmorillonite. The ceramifiable silicon rubber composite belt has extremely high strength and good flexibility and can be used for manufacturing a fire-resistant cable in place of a mica tape; and after a cable lapped by using the ceramifiable silicon rubber composite belt is ablated for 180 minutes in flame of 650-950 DEG C, the cable can still work normally.

A catalytic resin is formed by mixing a resin and either homogeneous or heterogeneous catalytic particles, the resin infused into a woven glass fabric to form an A-stage pre-preg, the A-stage pre-preg cured into a B-stage pre-preg, thereafter held in a vacuum and between pressure plates at a gel point temperature for a duration of time sufficient for the catalytic particles to migrate away from the resin rich surfaces of the pre-preg, thereby forming a C-stage pre-preg after cooling. The C-stage pre-preg subsequently has trenches formed by removing the resin rich surface, the trenches extending into the depth of the catalytic particles, optionally including drilled holes to form vias, and the C-stage pre-preg with trenches and holes placed in an electroless bath, whereby traces form in the trenches and holes where the surface of the cured pre-preg has been removed.

A method of manufacturing a colorless transparent polyimide film having reinforced glass fabric for flexible displays, suitable for use in increasing optical transmittance of a polyimide substrate having reinforced glass fabric for flexible displays. This method enables the glass fabric and the colorless transparent polyimide film to be matched in refractive index when the glass fabric is reinforced in the colorless transparent polyimide film to enhance thermal and mechanical properties of a substrate for flexible displays, thus satisfying high optical transparency and optical transmittance of 85% or more, required of a substrate for flexible displays, and thereby the colorless transparent polyimide film having reinforced glass fabric can be used as a substrate for flexible displays.

An armored voice coil assembly comprises a former that is impregnated with a curable resin, preferably polyimide resin. Voice coil wire is wound around the outside surface of the former and is then preferably encased with an outer layer of resin impregnated glass fabric wrapped around the voice coil windings, effectively enveloping the voice coil within inner and outer layers of fabric and resin. The armored voice coil assembly is then cured into a solid shape.

The invention discloses a method for repairing a metal skin by using a composite material. The method comprises the following steps of: 1, cleaning a region to be repaired by using a cleaning agent; 2, brushing or spraying an adhesive first coating agent on the region to be repaired; 3, brushing or spraying a sealing agent on the surface of the region to be repaired; 4, spreading and laying glass cloth on the surface of the metal skin; 5, repeating the step 4 until the layering thickness meets the repairing requirement; 6, grinding the surface of the EW200 glass cloth to ensure that the surface is rough to be convenient for adhering a paint layer; and 7, spraying paint on the surface of the glass cloth to ensure that the color of the region to be repaired is consistent with the surrounding color. The invention simplifies process procedures, reduces spare parts, and has the characteristics of higher repairing speed, lower cost and the like.