4932results about How to "Good formability" patented technology

The invention relates to an intervertebral implant including a wedge which is inserted between two spinous processes and has two opposite grooves in which said spinous processes engage, which grooves have substantially parallel axes, and each of which grooves is defined by two flanges. The wedge has at least one central opening between said two grooves and said central opening passes completely through said wedge along an axis Ac substantially parallel to the axes Ag1 and Ag2 of said grooves, which renders said wedge elastically deformable.

The present invention provides a metal clad laminate or a resin coated metal foil having a metal foil whose both surfaces are not substantially roughening-treated and an insulating resin composition layer using generally used insulating resin, and a printed wiring board and a manufacturing method thereof, in which the metal clad laminate or the resin coated metal foil is used, the reliability and circuit formability are high, and the conductor loss is extremely low.

The invention provides a novel aerogel multifunctional material and a preparation method thereof. The multifunctional aerogel composite is prepared from gellan gum, hyaluronic acid as well as derivatives or mixture of the gellan gum and the hyaluronic acid, aerogel, a novel light-sensitive material, a novel solvent or novel ionic liquid or a novel mixed solvent formred by the above solvents or essential oil and the like by a high-energy photocuring method. The composite material has the characteristics of low density, low heat-conducting coefficient, high weather resistance, environmental friendliness and the like. A functional carrier or a functional material coated with the composite material has high heat-isolating, heat-insulating, cold-accumulating, moisturizing, moisture-proof, moisture-retaining and anti-haze characteristics, and the characteristics and the use range of the materials can be improved. The multifunctional material is extremely widely applied, and can be widely applied in the fields of haze prevention and control, disease diagnosis and treatment, medicine, military industry, chemical industry, spaceflight, navigation, aviation, high-speed train, paper making, printing, water treatment, agriculture and animal husbandry, a cold chain system, food and cosmetic safety.

The invention provides a high-performance thermal insulation material and a preparation method thereof. The thermal insulation material comprises silicon dioxide aerogel and a fiber material, wherein, the silicon dioxide aerogel takes silicon dioxide hydrosol as a raw material, and is prepared by adding a catalyst. The method comprises the following steps: sol preparing, sol dipping, gelating, gel ageing, hydrophobization treating and drying and the like. The method can conveniently and selectively prepare the materials of planes, abnormal-shape surfaces and multiple sizes, has simple and convenient operation and small environmental pollution. The material has excellent mechanical performance, good high-temperature stability and heat insulation performance, and has wide application prospect in the fields of civilian industries, space flight and aviation industries, military industries and the like.

A hot-dip galvanized steel sheet having both high strength and good formability. A process for producing said hot-dip galvanized steel sheet without requiring additional steps of surface grinding and pre-plating.The hot-dip galvanized steel sheet is produced by forming a hot-dip galvanizing layer on a base cold-rolled steel sheet composed of C (0.02-0.20 mass %), Mn (1.50-2.40 mass %), Cr (0.03-1.50 mass %), Mo (0.03-1.50 mass %), 3Mn+6Cr+Mo (no more than 8.1 mass %), Mn+6Cr+10 Mo (no less than 3.5 mass %), Al (0.010-0.150 mass %), and Fe as the principal component, with Ti limited to 0.01 mass % or less, Si limited to 0.04 mass % or less, P limited to 0.060 mass % or less, and S limited to 0.030 mass % or less, and said base steel sheet having the composite microstructure composed mainly of ferrite and martensite.

The invention relates to a method for shaping the vehicle hub and relative device. Wherein, it comprises following steps that casting blank; uniform processing; pre-shaping blank; compressing; compressing the front rim; expanding opening and folding the edge at the back rim. The invention is characterized in that: the casting blank via pre-shaping is made into hollow blank; the concave and convex moulds in the compressing step and the compressing front rim step are integrated, while the convex mound contains core axle; the compressing step compresses the hollow blank in the mould via core axle to obtain the cylinder element whose bottom has holes; the step that compressing front rim uses metal diversion to stuff and shape; the step that expanding opening and folding the edge of back rim uses integrated convex mould and separated concave mould to expand opening, fold edge an shape the back rim. The invention can simplify the process, reduce device number, reduce the shaping force, reduce the energy consumption, and reduce the producing cost. The invention is mainly used to produce aluminum and magnesium alloy hub.

The invention proposes a high-strength dual-phase cold rolled steel sheet having an excellent deep drawability, wherein the steel sheet has a composition comprising C: 0.01-0.08 mass %, Si: not more than 2.0 mass %, Mn: not more than 3.0 mass %, P: not more than 0.10 mass %, S: not more than 0.02 mass %, A1: 0.005-0.20 mass %, N: not more than 0.02 mass % and V: 0.01-0.5 mass %, provided that V and C satisfy a relationship of 0.5xC/12<=V/51<=3xC/12, and the remainder being Fe and inevitable impurities, and has a microstructure consisting of a ferrite phase as a primary phase and a secondary phase including martensite phase at an area ratio of not less than 1% to a whole of the microstructure and a high-strength dual-phase galvanized steel sheet comprising a galvanized coating on the above steel sheet as well as a method of producing the same.

The invention discloses a high-molecular composite powder material for SLS. The composite powder material comprises the following ingredients, by weight, 85%-99% of high-molecular powder, 0.1%-10% of laser absorbents, 0.1%-3% of flow promoters and 0.1%-2% of anti-oxidants. The preparation method for the composite powder material is advantaged by simple technology, environmental protection and easy implementation, and a high-molecular composite powder material with excellent molding performances can be obtained. The composite powder material can perform SLS molding through a fiber laser, the product precision is improved effectively, and application of the SLS technology in many fields is promoted.

There is provided a retardation film including a stretched film of a polymer film having an absolute value of photoelastic coefficient (m²/N) of 50×10⁻¹² or less measured by using light of a wavelength of 550 nm at 23° C., which satisfies the following expressions (1) and (2):

Re[450]<Re[550]<Re[650]  (1)

Rth[550]<Re[550]  (2).

In the expressions (1) and (2): Re[450], Re[550], and Re[650] respectively represent in-plane retardation values measured by using light of wavelengths of 450 nm, 550 nm, and 650 nm at 23° C.; and Rth[550] represents a thickness direction retardation value measured by using light of a wavelength of 550 nm at 23° C.

A soft magnetic alloy contains P, B, and Cu as essential components. As a preferred example, an Fe-based alloy contains Fe of 70 atomic % or more, B of 5 atomic % to 25 atomic %, Cu of 1.5 atomic % or less (excluding zero), and P of 10 atomic or less (excluding zero).

The invention provides a single-layer or multi-layer packaging film or sheet having at least one layer formed of a polyamide resin composition, wherein the layer formed of the polyamide resin composition is a layer (A) formed of a polyamide resin composition comprising a copolymer nylon (c) composed of an aliphatic nylon (co)polymer component (1) and an aromatic nylon (co)polymer component (2) in a proportion of at least 5 wt. %.

A thin film layered product is composed of at least two deposition units, each of which includes at least a first thin film layer and a second thin film layer. At least one of the first thin film layer and the second thin film layer in each of the at least two deposition units is laminated so as to have an area decreased in a direction from a lower layer toward an upper layer. Thus, the reliability of connection between layers can be improved, and when a protective layer is formed on side faces, the formability and adhesion strength can be improved.

The present invention provides high strength thin-gauge steel sheet with excellent elongation and hole expandability having a tensile strength of 500 MPa or more and a method of production of high strength thin-gauge steel sheet with excellent elongation and hole expandability enabling production of this on an industrial scale, that is, high strength thin-gauge steel sheet comprised of, by mass %, C: 0.03 to 0.25%, Si: 0.4 to 2.0%, Mn: 0.8 to 3.1%, P≦0.02%, S≦0.02%, Al≦2.0%, N≦0.01%, and a balance of Fe and unavoidable impurities and having a microstructure comprised of ferrite with an area fraction of 10 to 85% and residual austenite with a volume fraction of 1 to 10%, an area fraction of 10% to 60% of tempered martensite, and a balance of bainite.

The invention discloses a fire-retardant polyolefin based wood plastic composite material and a preparation method thereof, and relates to a wood plastic composite material and a preparation method thereof, and the composite material and method provided by the invention can be used for solving problems that the existing fire-retardant wood plastic composite material has high heat release efficiency in burning and high smoke production, and can generate CO harmful gas easily. The flame-retardant polyolefin based wood plastic composite material is prepared from wood fiber materials, plastics, acoupling agent, a lubricant, an antioxidant, a nano inorganic fire retardant and a mineral filler. The method comprises the following steps: putting the wood fiber materials, the coupling agent and the lubricant into a high-speed mixing machine for hot mixing; then putting into a cold mixing machine for cold mixing, sending the plastics, the antioxidant, the nano inorganic fire retardant and the mineral filler into the cold mixing machine and then mixing; and then carrying out fusing and extruding for granulation by adopting extruding, injection, hot compressing or mold compression for molding, thus the fire-retardant polyolefin based wood plastic composite material is obtained. The wood plastic composite material provided by the invention has low heat release rate in burning and less smoke production, and is healthy and environmentally-friendly, and can be widely applied to the fields of indoor construction, decoration and furnishing materials and the like.

The invention relates to a highly-hydrophilic transparent ultraviolet-cured coating composition and a preparation method thereof. The ultraviolet-cured hydrophilic coating composition comprises light-cured resin, a polymerization monomer, a reactive diluent, a light initiator, an auxiliary and pigment. The preparation method comprises accurately weighing the light-cured resin according to a formula and pouring the light-cured resin into a mixing kettle, sequentially adding the polymerization monomer, the reactive diluent and the auxiliary into the mixing kettle, and stirring the mixture for 20-45 minutes; adding the light initiator into the mixing kettle, mixing for 15-35 minutes to obtain ultraviolet-cured hydrophilic coating, and storing the ultraviolet-cured hydrophilic coating away from the light; and when the ultraviolet-cured hydrophilic coating is used, adding the pigment and performing even mixing. The ultraviolet-cured hydrophilic coating composition can be coated on base materials of plastic, metal, glass and the like. An ultraviolet-cured coating has excellent hydrophilcity and good physical performance, adhesive force, hydrolytic resistance, salt fog resistance and alkali resistance.

The invention relates to the field of laser processing manufacture, in particular to a laser shock precision forming method and a device. The device comprises a laser, an outer light path system, a laser shock head system A, a flying optical processing system with a laser shock head system B, a test sample system, a detection feedback system, a multi-axis link machine tool and a tool fixture system, a central control processor and a control system. A laser beam emitted by the laser is split by the outer light path system and are respectively transmitted to the front and the rear surfaces of a workpiece to subject the front and the rear surfaces of the double-sided workpiece with an energy absorption layer and a confinement layer to laser-induced shock wave. According to the requirements of the shape and the formation rule of a plate material, the double-sided laser shock head can execute simultaneous and non-simultaneous shock, counter shock, staggered shock, shocks with same and different energy, etc., so that the plate material is formed by generating a certain plastic deformation and a stress field distribution and that a certain residual stress is formed on the surface of the plate material. The method can achieve accurate quantitative formation, good repeatability and high forming efficiency, and can easily achieve automatic production.

The invention relates to a carbon fiber reinforced resin powder material for selective laser sintering (SLS). The powder material comprises 48-88 parts by mass of resin powder, 10-50 parts by mass of carbon fibers, 0.5-1.2 parts by mass of antioxidants, 0.2-1 part by mass of flow promoting agent and 0.2-0.6 parts by mass of dispersant per 100 parts by mass of the reinforced material. The carbon fiber reinforced resin powder material for selective laser sintering is obtained by configuring the each component sequentially according to a certain process. The strength and modulus of SLS molded parts made of the resin powder material disclosed by the invention, compared with SLS molded parts made of the matrix resin material, are greatly enhanced and the requirements on the mechanical performance of the molded parts directly as end products can be met better.

The invention relates to a method of powder/liquid continuous mixing particle production. Wherein, said method comprises that sealing the top of hopper mixed particle producing room (12); the center at the top uses ejector (14) to continuously eject liquid downwards; the powder outlet (16) at the circumference of ejector disperses the atomized liquid to the powder; and the gas ejector (18) at the circumference of powder outlet feeds gas as the protective air film (Af) that avoiding dispersing the fed powder; therefore, the powder and liquid can continuously contact to form mixed particle (G); and the bottom of room (12) via the rotation of mixing disc (32) can make the air passive pressure, to generate eddy flow, to accelerate the particle (G) generation, and shear or mix the particle (G), to form and discharge uniform particles (G).

The invention provides a high-strength cold-rolled steel sheet having a TS of 1,180 MPa or greater and excellent workability, such as stretch flange workability and bendability. Also provided are a molten galvanized high-strength steel sheet, and a method for producing the same. The high-strength cold-rolled steel sheet having excellent workability has a composition that comprises, by mass%, C: 0.05 to 0.3, Si: 0.5 to 2.5, Mn: 1.5 to 3.5, P: 0.001 to 0.05, S: 0.0001 to 0.01, Al: 0.001 to 0.1, N: 0.0005 to 0.01, and Cr: 1.5 or less (including 0) and satisfies formulas (1) and (2), with the balance being Fe and inevitable impurities. The steel sheet has a microtexture wherein there is a ferrite phase and a martensite phase, the percentage of the texture total surface area occupied by martensite phase is 30% or greater, (the surface area occupied by martensite phase)/(surface area occupied by ferrite phase) exceeds 0.45 but is less than 1.5, and the average particle diameter of the martensite phase is 2 microns or larger. [C]1/2*([Mn]+0.6*[Cr])>/=1-0.12*[Si] (1), and 550-350*C*-40*[Mn]-20*[Cr]+30*[Al]>/=340 (2), wherein C*=[C]/(1.3*[C]+0.4*[Mn]+0.45*[Cr]-0.75).

The invention discloses a two-phase automobile steel plate with low yield-strength ratio and high strength and a production method of the two-phase automobile steel plate, belonging to the technical field of steel for automobiles. The two-phase automobile steel plate comprises the following chemical components: 0.1-0.40wt% of C, 3.0-8.0wt% of Mn, less than or equal to 0.020wt% of P and less than or equal to 0.02wt% of S; on the basis, the two-phase automobile steel plate can be additionally provided with one or more of the following elements: 0.1-3.0wt% of Ni, 0.2-3.0wt% of Cr, 0.1-0.8wt% of Mo, 0.3-2.3wt% of Si, 0.5-2.0wt% of Cu, 0.0005-0.005wt% of B, 0.02-0.10wt% of Nb, 0.002-0.25wt% of [N], 0.05-0.25wt% of Ti, 0.02-0.25wt% of V, 0.015-0.060wt% of Al, 0.002-0.005wt% of RE (Rare Earth) and 0.005-0.03wt% of Ca. The two-phase automobile steel plate has the advantages that the two-phase automobile steel plate with low yield strength, high tension strength and favorable elongation can be produced through annealing within short time; the performance indexes of the two-phase automobile steel plate are as follows: two-phase steel with the tension strength of 980MPa has the yield-strength ratio of not larger than 0.55 and the elongation of larger than 22%, and two-phase steel with the tension strength of 1180MPa has the yield-strength ratio of not larger than 0.55 and the elongation of larger than 17%.

The invention discloses a steel for enamel, and is characterized by comprising the following chemical elements by mass: not more than 0.020% of C, not more than 0.05% of Si, 0.10-0.50% of Mn, not more than 0.03% of P, 0.003-0.050% of S, 0.001-0.03% of Al, 0.001-0.015% of N, 0.005-0.050% of O, not more than 0.005% of Ca, not more than 0.005% of Mg, not more than 0.10% of Cu, not more than 0.10% of Cr, not more than 0.10% of Ni, not more than 0.10% of Mo, at least one of 0.0005-0.003% of B, not more than 0.01% of Nb, not more than 0.02% of V, and 0.001-0.05% of Ti, and the balance of Fe and other inevitable impurities, wherein N(%)*Ti(%) is not more than 3*10<-4>. Correspondingly, the invention further discloses a production method of the steel for enamel. The steel for enamel has excellent comprehensive performance.

An electrostatic latent image bearer, including a substrate and a photosensitive layer located overlying the substrate, wherein an outermost layer of the electrostatic latent image bearer includes a binder resin and an electroconductive particulate material, wherein the electroconductive particulate material has the following formula:

M_xSb_yO_z

wherein M represents a metallic element; and x, y and z represent molar ratios for respective elements.

Provided is a high-strength hot-dip galvanized steel sheet having: a tensile strength (TS) no less than 1180 MPa; a total elongation (EL) no less than 14%; a hole expansion ratio (lambda) no less than 30%; and a yield ratio (YR) no greater than 70%, and having excellent moldability and shape fixability. Also provided is a method for manufacturing the high-strength hot-dip galvanized steel sheet. A high-strength hot-dip galvanized steel sheet having excellent moldability and shape fixability, characterized in having a component composition comprising, by mass, 0.10 to 0.35% of C, 0.5 to 3.0% of Si, 1.5 to 4.0% of Mn, 0.100% or less of P, 0.02% or less of S, and 0.010 to 0.5% of Al, with the remainder made up by Fe and unavoidable impurities; the microstructure containing, by area ratio, 0 to 5% of polygonal ferrite, 5% or more of bainitic ferrite, 5 to 20% of martensite, 30 to 60% of tempered martensite, and 5 to 20% of residual austenite; and the average particle diameter of prior austenite being no greater than 15 mum.

The invention discloses enamel steel for a cold rolling water heater and a manufacturing process thereof. The enamel steel for cold rolling water heater comprises components as follows in percentage by weight: C: 0.01%-0.08%. Si: less than or equal to 0.03%, Mn: 0.10%-0.60%, P: less than or equal to 0.02%, S: 0.003%-0.02%, N: 0.001%-0.006%, AIs: less than or equal to 0.04%, Ti: 0.02%-0.12%, and the balance of ferrum and unavoidable impurities, wherein excess Ti content in steel is equal to Ti-(4*C+3.43*N=1.5S) which is less than or equal to 0. The manufacturing process is characterized in that the heating temperature of billet steel is 1160-1300 DEG C; the hot rolling finish rolling temperature is 850-950 DEG C; the coiling temperature of steel plates is 660-760 DEG C; the cold rolling draft is 60%-80%; the annealing temperature is 760-880 DEG C; the temperature preservation time is 60-200s; rapid cooling speed rate is 15-45 DEG C/s, planishing elongation is 0.7%-1.8%; and surface roughness is 0.7-1.9 micrometres. The invention has the advantages of excellent formability, enamel-spreadable property, pressing resistance, weldability and fish-scaling resistance, stable yield strength after enamelfiring, less cost increase, stable effect and significant economic benefits.

The invention discloses an automotive low-cost high-formability aluminum alloy material and a preparation method thereof. The preparation method includes that solute elements like Mg, Si, Cu, Zn and Fe which can be brought in recycling and regenerating of aluminum alloy are utilized fully, composition optimizing and processing and heat treatment process control are performed additionally, and a proper amount of solute element Zn which is brought in can effectively promote forming of Mg-Si solute atom cluster or transition phase so as to increase paint-baking hardening increment of the alloy; a proper amount of element Fe which is brought in and other solute elements Si, Cu and Mn can form intermetallic compound particles different in size, size, shape, texture component and density of recrystallized grain of the alloy can be controlled well by utilizing the intermetallic compound particles, recrystallized texture component and density can be matched well, and an aluminum alloy plate which is made finally can show excellent punching formability and edge bending performance. The alloy is quite suitable for being used for manufacturing outer plates of an automobile body, especially for manufacturing parts in complex shapes and with high requirements on punching formability, edge bending performance and paint-baking hardening increment.