30results about How to "Impact resistance has" patented technology

The invention relates to a composite material used in vehicle inner decoration and relative producing method. Said composite material is formed by five or six non-woven sheets as surface layer, de-molding layer, filled layer, de-molding layer and base material layer. Wherein, the filled layer can be formed by hot-melt felt (3a) and polypropylene felt (3b). The producing method comprises that using the de-molding layer (4) as lower layer, the filled layer (3) as intermediate layer and the de-molding layer (2) as upper layer to be piled and arranged between the upper and lower heating plates of heat device; adhering said three layers after low-pressure high-temperature heating into the frame of soft-sandwich type; moving said frame into the lower mould of molding mould and above the base material layer (5); coating the surface layer (1) on the frame; closing the mould to be pressurized and shaped; cutting the hole and edge; and lifting upper mould to attain the final product. The invention has the advantages of lower cost, un-deformed product, high strength, impact resistance, welding availability, short producing process and high efficiency.

The invention relates to an impact-resistant and high-strength domestic ceramic glaze, and belongs to the technical field of domestic ceramics. The impact-resistant and high-strength domestic ceramic glaze comprises the following components in parts by weight: 45 to 55 parts of Yunnan kaolin, 25 to 35 parts of Guangxi kaolin, 18 to 25 parts of potassium feldspar, 5 to 10 parts of spodumene, 10 to 15 parts of wollastonite powder, 0.1 to 0.5 part of cobalt oxide, 0.3 to 0.5 part of magnesium oxide, and 0.1 to 0.5 part of titanium dioxide. The preparation method comprises the following steps: allowing raw materials from which impurities are removed to be subjected to crushing, mixing and coarse grinding, sieving through a 6 to 12-mesh sieve, slurrying, performing wet ball-milling for 50 to 75 minutes, sieving through a 200 to 300-mesh sieve, filter pressing, ageing for 8 to 20 days at room temperature to obtain finished product mud; rolling the finished product mud to be molded to obtain a green body; and firing the green body for 3 to 5 hours at a temperature of 300 to 350 DEG C, cooling and then firing for 8 to 8.5 hours at a temperature of 1000 to 1100 DEG C, polishing after cooling to room temperature to obtain the product. The domestic ceramic has good thermal stability and stable chemical properties, is light and delicate, and has the characteristics of impact resistance and high strength.

The invention relates to a high-wearable extrusion roller of a roller press and a manufacture process thereof, belonging to the technical field of extrusion rollers; circular grooves are machined on the surface of the extrusion roller every 3-6 mm; a hard alloy cylinder is embedded in the groove; the hard alloy cylinder is 2 mm higher than the surface of the extrusion roller; then, hard alloy is connected with the extrusion roller through a brazing method; the hard alloy contains the following components in percentage by weight: 66-92% of WC, 0-30% of TiC, 3.9-8% of Co and 0.1-0.3% of Cr; compared with the overlaying welding method, after the extrusion roller is brazed with the hard alloy, the wearable property is greatly increased; the service life is long; the replacement time of the extrusion roller is reduced; and the equipment utilization rate is increased.

The invention discloses a preparation method of a compound tungsten-base tubular welding rod hard-face material. The preparation method of the compound tungsten-base tubular welding rod hard-face material is characterized in that the raw materials comprise, by weight, 50-65 parts of cemented carbide pellets, 10-12 parts of spheroidal tungsten carbide, 10-30 parts of casting granular tungsten carbide, 6-8 parts of single crystal granular tungsten carbide, 1-2 parts of silicon nitride ceramic particles, 2.5-4.5 parts of silicon-manganese powder and 0.5 part of phenolic resin; the method comprises the steps that the raw materials of the cemented carbide pellets, the spheroidal tungsten carbide, the casting granular tungsten carbide, the single crystal granular tungsten carbide, the silicon nitride ceramic particles and the silicon-manganese powder are mixed for 1-4 h in a mixing machine according to the proportions, and a mixture is obtained; after the mixture obtained in the first step is discharged, the phenolic resin is added in the mixture according to the proportion for even stirring and drying in a drying box, the mixture is maintained for 3 h at 100 DEG C, the mixture is maintained for 3 h at 150 DEG C, and the finished product tubular welding rod hard-face material is obtained after the processed product is taken out of the drying box. The preparation method of the compound tungsten-base tubular welding rod hard-face material is mainly used for preparing the compound tungsten-base tubular welding rod hard-face material.

The invention discloses a high-strength and high-wear-resisting plastic valve element and a preparation method thereof. The high-strength high-wear-resisting plastic valve element is prepared from, by weight, 60-80 parts of PFA, 10-20 parts of ETFE, 3-5 parts of nano attapulgite, 3-5 parts of nano dolomite powder, 2-5 parts of nano ceramic powder, 2-4 parts of nano silicon nitride, 1-2 parts of glass fibers, 1-3 parts of antiager, 0.5-0.8 part of antioxidant, 0.8-1.5 parts of coupling agent and 1-3 parts of liquid paraffin. The high-strength and high-wear-resisting plastic valve element is high in strength and resistant to impacts and wear, and has high temperature resistance, self-lubrication performance and excellent dimension stability.

The invention discloses a non-staining non-finger mark high-pressure decorative board and a preparation method thereof. The high-pressure decorative board is formed by a balance layer, a substrate layer, an adhesive layer and a non-staining non-finger mark decorative layer through high-temperature and high-pressure moulding. The non-staining non-finger mark decorative layer is a resin-coated decorative paper, the decorative paper is coated with the fluoroalkylsilane resin composite resin with addition of silica particles. The mass percentage of the silica particles in the composite resin is 20% to 30%, and the particle size is 10 to 20 nm. The obtained high-pressure decorative board forms a protective film with high pollution resistance, fingerprint staining resistance and graffiti resistance, and has strong anti-adhesion property; can effectively block the damage of the decorative layer by ultraviolet rays and oxygen, acid corrosive gas, water vapor, and the like, and can keep the good stability of the decorative effect of the decorative board for a long time. Therefore, the decorative board can be better used for exterior wall decoration, beach tables and chairs, outdoor furniture decoration, and the like, can better protect the decorative objects from damage, which greatly expands the decorative board.

The invention provides an impact-resistant and flame-retardant lining board and a preparation method thereof. The impact-resistant and flame-retardant lining board is prepared by paving multi-layer phenolic resin prepreg, and the outermost layer of the phenolic resin prepreg is paved There is a surface decorative film; the raw materials for the preparation of the phenolic resin prepreg include phenolic resin and reinforcing materials, the reinforcing material is fiber fabric, and the raw materials for the preparation of the phenolic resin include the following components in terms of parts by mass: 0-100 parts of thermoplastic phenolic resin , 0-100 parts of thermosetting phenolic resin, 1-15 parts of flame retardant, 5-100 parts of toughening agent, 0.05-1 part of coupling agent, and 0-20 parts of curing agent; among them, thermoplastic phenolic resin and The thermosetting phenolic resin is not 0 parts at the same time. The impact-resistant, flame-retardant liner and its preparation method, through the improvement of resin formula and prepreg preparation technology, develop a phenolic resin with high toughness, high flame retardancy, low smoke and low toxicity, and cooperate with the liner configuration design , The optimization of composite material forming technology has obtained the composite material liner with impact resistance and high flame retardancy.

The invention discloses a preparation method of a compound tungsten-base tubular welding rod hard-face material. The preparation method of the compound tungsten-base tubular welding rod hard-face material is characterized in that the raw materials comprise, by weight, 50-65 parts of cemented carbide pellets, 10-12 parts of spheroidal tungsten carbide, 10-30 parts of casting granular tungsten carbide, 6-8 parts of single crystal granular tungsten carbide, 1-2 parts of silicon nitride ceramic particles, 2.5-4.5 parts of silicon-manganese powder and 0.5 part of phenolic resin; the method comprises the steps that the raw materials of the cemented carbide pellets, the spheroidal tungsten carbide, the casting granular tungsten carbide, the single crystal granular tungsten carbide, the silicon nitride ceramic particles and the silicon-manganese powder are mixed for 1-4 h in a mixing machine according to the proportions, and a mixture is obtained; after the mixture obtained in the first step is discharged, the phenolic resin is added in the mixture according to the proportion for even stirring and drying in a drying box, the mixture is maintained for 3 h at 100 DEG C, the mixture is maintained for 3 h at 150 DEG C, and the finished product tubular welding rod hard-face material is obtained after the processed product is taken out of the drying box. The preparation method of the compound tungsten-base tubular welding rod hard-face material is mainly used for preparing the compound tungsten-base tubular welding rod hard-face material.

The invention provides a method for preparing an impact-resistant film for automatic access control. The polycarbonate film is treated with an alkali reduction method to increase its specific surface area and improve its hygroscopicity, and to construct a nano-microgel coating on the polycarbonate. layer, has hydrophobic and antibacterial properties, and at the same time improves the adhesion to the glass substrate, modifies the carbon nanotubes, improves the dispersion of the carbon nanotubes, and sprays the silanized coating on the glass substrate, obtained by carbonization , improve the adhesion with the polycarbonate film, and then utilize the water-based polyurethane adhesive to laminate and bond the film, and finally spray a layer of hardened coating to improve the impact strength and wear resistance of the film. The invention provides The preparation method of the impact-resistant film has the advantages of simple preparation method, wide source of raw materials and low cost. At the same time, the prepared film has the characteristics of impact resistance, hydrophobicity, antibacterial, high strength and wear resistance, and can avoid glass bursting and improve safety. , is worth promoting.

The invention discloses a shock resisting material for a grinding machine. The shock resisting material for the grinding machine is prepared from, by weight, 80-87 parts of iron, 40-45 parts of chromium, 23-28 parts of aluminum, 11-14 parts of manganese, 8-12 parts of vanadium, 6-10 parts of tantalum, 13-17 parts of boron and 15-19 parts of silicon. The shock resisting material is prepared from iron, chromium, aluminum, manganese, vanadium, tantalum, boron and silicon, and has the beneficial effects of being high in hardness and strength, resistant to abrasion and shocks and long in service life.

An impact-resistant, wear-resistant high-elasticity, high-strength steel, wherein the steel contains 0.26-0.48 wt % C, 1.4-2.5 wt % Si, 0.5-1.0 wt % Mn, 1.4-2.4 wt % % Cr, 0.01-0.1 wt % Ni, 0.01-0.5 wt % Mo, 0.005-0.04 wt % Al, 0.05-0.1 wt % V, 0.0025-0.02 wt % N, remaining Fe and unavoidable of impurities. The impact-resistant and wear-resistant high-elasticity and high-strength steel of the present invention has high hardness, high strength, high toughness and high elasticity, and the steel has weldability, low temperature tempering resistance, high temperature tempering resistance, hardening energy, Mechanical properties such as abrasion resistance, impact toughness and tensile strength are very good, so model life and component life are much longer than previous steels when used under severe conditions.

The invention provides an airplane blocking bed blocking unit top cover and a preparation method thereof, and aims to provide the airplane blocking bed blocking unit top cover which is stable in mechanical strength, low in dispersity, high in weather resistance, and high in flame retardant property. Through the technical scheme, dicyclopentadiene type unsaturated polyester resin is adopted as matrix resin, a polybutadiene-styrene copolymer is adopted as a low shrinkage agent, benzopinacole silicon alkyl ether is respectively or commonly used with benzoyl peroxide tert-butyl ester, peroxide-2-ethylhexoic acid tert-butyl ester to form an initiator, an unsaturated polyester glass fiber modeling piece SMC prepared from an ultraviolet absorbent is added, then the SMC resin paste is used for steeping and rolling an upper resin paste film layer, a middle chopped glass fiber layer and a lower resin paste film layer through a coating machine, and the SMC material containing 8 to 12 parts by weight of chopped glass fiber is prepared through curing; and then the product is molded through compression and cooled to room temperature in a laminated top cover mold with required thickness.

The invention discloses a steering knuckle for a vehicle with casting and forging combined with anti-torsion and impact resistance and a manufacturing method thereof. The steering knuckle has a porosity of 0%-0.2%, and the grain growth direction is generally horizontal from the outermost edge to the center of the axis. The material used is cast low alloy steel. The steering knuckle of the invention combines one-time molding with forging and casting, crystal grains grow radially, has good compactness, high strength, torsion resistance and impact resistance.

The invention relates to a composite material used in vehicle inner decoration and relative producing method. Said composite material is formed by five or six non-woven sheets as surface layer, de-molding layer, filled layer, de-molding layer and base material layer. Wherein, the filled layer can be formed by hot-melt felt (3a) and polypropylene felt (3b). The producing method comprises that using the de-molding layer (4) as lower layer, the filled layer (3) as intermediate layer and the de-molding layer (2) as upper layer to be piled and arranged between the upper and lower heating plates of heat device; adhering said three layers after low-pressure high-temperature heating into the frame of soft-sandwich type; moving said frame into the lower mould of molding mould and above the base material layer (5); coating the surface layer (1) on the frame; closing the mould to be pressurized and shaped; cutting the hole and edge; and lifting upper mould to attain the final product. The invention has the advantages of lower cost, un-deformed product, high strength, impact resistance, welding availability, short producing process and high efficiency.

The invention discloses an impact-resistant steel ball for a ball mill. The weight percentages of the components are as follows: C: 0.6%-0.8%; Si: 0.2%-0.3%; Cr: 1.5%-2.3%; Mn: 0.6% ‑0.8%; Ni: 0.2%‑0.3%; Ti: 0.04%‑0.06%; Al: 0.6%‑1.2%; W: 0.05%‑0.1%; Mo: 0.15%‑0.25%; S: 0‑0.02% ; P: 0‑0.06%; the remaining material is Fe; in the preparation process, the impact-resistant steel balls for the ball mill are prepared according to the following process steps: S1: Weigh the raw materials according to the weight percentage of each component and smelt them. Refining in , and final deoxidation in the later stage of refining, pouring, casting and cleaning, to obtain castings; S2: The castings obtained in S1 are kept at 850-870°C for 2.5-3.5 hours, then water quenched, quenched The final casting is heated to 240-260°C for tempering treatment, and after 1-2 hours of heat preservation, it is moved into a slow cooling pit and slowly cooled to room temperature to obtain a finished wear-resistant steel ball.

The invention provides an impact-resistant and wear-resistant material for laser manufacturing, which is composed of the following components in mass percentage: C: 2.9-3.8%, Cr: 15-23%, Si: 1.00-1.30%, Ni: 0.2-0.95 %, Mn: 0.9-1.5%, W: 2-5.5%, V: 14-21%, B: 0.8-1.8%, Nb: 5.50-10%, Y: 0.8-2.3%, the balance is Fe and not Avoid impurities. The impact-resistant and wear-resistant iron-based alloy powder for laser cladding provided by the invention has the properties of impact resistance, corrosion resistance and wear resistance, and can be used for laser manufacturing of large and medium-sized parts in complex working conditions such as large crushers. The composite wear-resistant parts prepared by laser can meet the needs of complex working conditions on the comprehensive mechanical properties of the work surface. At the same time, the matrix can be made of low-cost common materials, and the used matrix can be reused by laser manufacturing; this paper The invention can not only provide the utilization rate of the overall material of the parts, but also can improve the service life of a single time, reduce maintenance and overhaul time, increase resource utilization rate, and reduce manpower loss.

The invention discloses a non-staining non-finger mark high-pressure decorative board and a preparation method thereof. The high-pressure decorative board is formed by a balance layer, a substrate layer, an adhesive layer and a non-staining non-finger mark decorative layer through high-temperature and high-pressure moulding. The non-staining non-finger mark decorative layer is a resin-coated decorative paper, the decorative paper is coated with the fluoroalkylsilane resin composite resin with addition of silica particles. The mass percentage of the silica particles in the composite resin is 20% to 30%, and the particle size is 10 to 20 nm. The obtained high-pressure decorative board forms a protective film with high pollution resistance, fingerprint staining resistance and graffiti resistance, and has strong anti-adhesion property; can effectively block the damage of the decorative layer by ultraviolet rays and oxygen, acid corrosive gas, water vapor, and the like, and can keep the good stability of the decorative effect of the decorative board for a long time. Therefore, the decorative board can be better used for exterior wall decoration, beach tables and chairs, outdoor furniture decoration, and the like, can better protect the decorative objects from damage, which greatly expands the decorative board.

The invention relates to an impact-resistant and high-strength domestic ceramic glaze, and belongs to the technical field of domestic ceramics. The impact-resistant and high-strength domestic ceramic glaze comprises the following components in parts by weight: 45 to 55 parts of Yunnan kaolin, 25 to 35 parts of Guangxi kaolin, 18 to 25 parts of potassium feldspar, 5 to 10 parts of spodumene, 10 to 15 parts of wollastonite powder, 0.1 to 0.5 part of cobalt oxide, 0.3 to 0.5 part of magnesium oxide, and 0.1 to 0.5 part of titanium dioxide. The preparation method comprises the following steps: allowing raw materials from which impurities are removed to be subjected to crushing, mixing and coarse grinding, sieving through a 6 to 12-mesh sieve, slurrying, performing wet ball-milling for 50 to 75 minutes, sieving through a 200 to 300-mesh sieve, filter pressing, ageing for 8 to 20 days at room temperature to obtain finished product mud; rolling the finished product mud to be molded to obtain a green body; and firing the green body for 3 to 5 hours at a temperature of 300 to 350 DEG C, cooling and then firing for 8 to 8.5 hours at a temperature of 1000 to 1100 DEG C, polishing after cooling to room temperature to obtain the product. The domestic ceramic has good thermal stability and stable chemical properties, is light and delicate, and has the characteristics of impact resistance and high strength.

A flexible commutator for automobile rearview mirrors, the transmission mechanism of the first degree of freedom (2) and the transmission mechanism of the second degree of freedom (3) are fixed on the base (1) in a vertical manner through the space position, and the floating platform (4) The spherical joint pair of the top column (5.2) is connected with the first degree of freedom transmission mechanism (2) and the second degree of freedom transmission mechanism (3), and the characteristic is that the first degree of freedom transmission mechanism (2) and the second degree of freedom are respectively The top column assembly (5) in the degree of freedom transmission mechanism (3) is placed at both ends of the pipeline assembly (6) through the moving pair, and the ferromagnetic core assembly (7) is placed inside the pipeline assembly (6) through the moving pair , the coil assembly (8) is fixed on the outer wall of the pipe (6.1), the first magnetic field shielding layer (6.3) and the second magnetic field shielding layer (8.2) are fixed on the outside of the pipe (6.1) and the coil (8.1), the fluid (9) Located inside the pipeline (6.1).