1470results about How to "Guaranteed hardness" patented technology

The invention relates to silicon rubber with high refractive index and high transparency for optical encapsulation and a preparation method thereof. The silicon rubber is prepared from a phenyl vinyl polysiloxane component A, a silicon resin component B containing phenyl vinyl, a phenyl component C containing hydrogen polyoxyalkylene, a platinum catalyst component D, a catalytic inhibitor component E, a modified polysiloxane component F, and a water remover component G in a mixing manner. The silicon rubber not only has over 1.50 of refractive index, but also is good in transparency, excellent in adhesion, and stable in performance, can resist heat and ultraviolet radiation for a long period of time, can meet various requirements of LED (light-emitting diode) encapsulation, and is an ideal encapsulation material of the LED. The silicon rubber can be packaged into a bi-component product; the product has good storage stability; and high transparency is still kept after the product is stored for over 6 months.

The invention relates to a fingerprint recognition sensor packaging structure and an electronic device with the fingerprint recognition sensor packaging structure. The fingerprint recognition sensor packaging structure comprises a control button and a fingerprint recognition sensor arranged below the control button, wherein the control button comprises a glass cover plate and a thin film which coats the surface of the glass cove plate and is made of non-anisotropic dielectric materials. The mode of combining the glass cover plate and the coated film is adopted by the control button, the hardness of the control button is ensured, meanwhile, cost is reduced, in addition, the thickness of the fingerprint recognition sensor packaging structure is not affected, and when the fingerprint recognition sensor packaging structure is embedded into the electronic device, the thickness design of the electronic device is not affected.

The invention discloses a moon cake. The moon cake comprises a moon cake cladding and a moon cake filling, wherein the moon cake cladding comprises the following raw materials: 40 to 70 percent of wheat flour, 20 to 45 percent of sugar alcohol, 2 to 8 percent of L-arabinose, 5 to 20 percent of animal and vegetable oil or hydrogenated animal and vegetable oil and 0.2 to 2 percent of alkaline water. The technical problems of soft cladding and poor plasticity caused by the low viscosity of a sugar-free moon cake which takes maltitol solution as a cladding in the prior art are solved. Therefore, the moon cake has the characteristics of easily-shaped cladding, high plasticity and stable texture in baking process.

The invention provides a method for preparing an ultra-high hardness cladding layer through the synchronous ultrasonic vibration assisting laser technology. According to the specific scheme, the method includes the steps that ultrasonic vibration is synchronously introduced in the Ni-based metal ceramic coating cladding process, mobility of liquid metal can be improved in the mode, tissue distribution is more uniform, in the solidification process, a growing dendrite net can be broken and made to be dispersed to all portions of melt, small crystal nucleuses which are uniformly distributed are formed, segregation of metal ceramic is avoided, and therefore it is guaranteed that the cladding layer is not prone to cracking when ultra-high hardness is acquired; equipment is simple, calibration and installation are facilitated, energy consumption is low, the working environment is good, and acquired coating metal ceramic particles are uniform in distribution, high in hardness and good in abrasion resistance.

The invention provides a cyclopropene preservative, which is characterized by containing 0.1 to 99 mass percent of cyclopropene coating material powder, 0.1 to 98 mass percent of compound, composition or material releasing water molecules, and 0 to 98 mass percent of one or more assistants. The invention also provides the preparation method and packaging method of the cyclopropene preservative. The preservative is convenient for use and has a remarkable preservation effect.

The invention discloses a POSS (Polysilsesquioxane)-containing antireflective film coating liquid and a preparation method and application thereof, and belongs to the field of film coating liquids. The preparation method of the POSS-containing antireflective film coating liquid comprises the following steps of: adding the following raw materials in percentage by weight: 0.01%-20% of POSS derivatives, 0-10% of nanometer silicon dioxide granules, 0%-10% of hollow silicon dioxide, 0%-5% of non-silicon nanometer oxide granules, 0%-10% of organic silicon compounds, 0%-50% of deionized water and 0%-2% of catalysts into a solvent; and reacting at 20-150 DEG C for 0-45 hours to obtain the POSS-containing antireflective film coating liquid. The POSS-containing antireflective film coating liquid disclosed by the invention can be applied to photovoltaic glass, display screen base plate glass, building glass and automobile glass; and the obtained antireflective film has the advantages of good film layer uniformity, high adhesive force and rigidity and good weather resistance.

An environmental thermoplastic PVC table tennis material comprises the following materials, by weight, 100 parts of polyvinyl chloride, 3-8 parts of a heat stabilizer, 1-5 parts of a lubricant, 10-30 parts of a reinforcing flexibilizer, 5-10 parts of a filling material, 0.1-0.2 part of a toner, 0.1-0.5 part of an anti-oxidant and 0.1-2 parts of an ultraviolet ray absorber. The preparation method of the environmental thermoplastic PVC table tennis comprises the following steps: firstly carrying out injection moulding to form two hemispheres, splicing the two hemispheres by the use of an adhesive to form a complete sphere, polishing, swelling in a die cavity to form a uniform table tennis, and carrying out aftertreatment to prepare a finished product ball. Thickness of the hemispheres, from top to bottom, is divided into five stages. The environmental thermoplastic PVC table tennis material has advantages of low cost, high hardness, excellent elastic modulus, good eccentricity and good environmental protection property, and can meet requirements of a game ball.

The invention provides a cyclopropene preservative, which is characterized by containing 0.1 to 99 mass percent of cyclopropene coating material powder, 0.1 to 98 mass percent of compound, composition or material releasing water molecules, and 0 to 98 mass percent of one or more assistants. The invention also provides the preparation method and using method of the cyclopropene preservative. The preservative is convenient for use and has a remarkable preservation effect.

An electric transmission line carbon fiber composite core manufacturing method mainly includes the following steps of conducting preprocessing, dehumidification and glue infiltration, pre-hardening carbon fibers in a two-section heating mode, enabling high-strength glass fibers or basalt fibers to cover a pre-hardened carbon fiber core according to certain rules, hardening the carbon fiber core covered by the high-strength glass fibers or the basalt fibers in a three-section mode, and conducting post curing and cooling, wherein consumed epoxy resin is high-temperature-resistant special type pultrusion epoxy resin which is prepared by adding modified anhydride compounds in the glue infiltration process. The electric transmission line carbon fiber composite core manufacturing method has the advantages that the carbon fibers are preformed in a pultrusion mode to be in a semi-hardened state after being infiltrated, heating temperature sections are controlled so that the carbon fiber core with excellent performance can be obtained, particularly, heating and hardening are conducted in the three-section mode in the final covering and forming process, therefore, the rigidity of final products is ensured, the smoothness of production and production efficiency are improved, and the carbon fiber composite core produced through combination can completely meet the requirements of electric power transmission.

The invention relates to a high-carbon gray cast iron automobile brake disk and a production method thereof. The high-carbon gray cast iron automobile brake disk comprises the following chemical components in percentage by weight: 3.7-3.8% of C, 0.5-0.8% of Mn, 0.3-0.5% of Cu, 0.1-0.2% of Cr, 0.2-0.4% of Mo, 1.6-2.0% of Si, 0.1-0.2% of N, 0.01-0.12% of P, 0.05-0.12% of S and the balance of Fe. The brake disk provided by the invention has the outstanding characteristics of small brake temperature rise, abrasion resistance, favorable heat fatigue resistance effect and the like; the performance of an automobile brake system can be obviously improved, and the service life can be obviously prolonged; and meanwhile, the potential safety hazard caused by ineffective brake due to high temperature can be effectively eliminated. Thus, the high-carbon gray cast iron automobile brake disk has high economic value.

The invention discloses a multi-component alloy casting ball which comprises the following main chemical components in percentage by weight: 1.8-3.2% of carbon (C), 0.5-1.0% of silicon (Si), 0.4-0.8% of manganese (Mn), 2.0-3.8% of chromium (Cr), no more than 0.5% of molybdenum (Mo), no more than 0.5% of copper (Cu), no more than 0.5% of nickel (Ni), no more than 0.2% of niobium (Nb), no more than 0.5% of zirconium (Zr), no more than 0.5% of vanadium (V), no more than 0.01% of boron (B), no more than 0.15% of phosphorus (P), no more than 0.15% of sulfur (S), 0.5-0.6% of rare earth yttrium (Y-Re) and the balance of iron (Fe). According to the invention, the cost is saved, the corrosion resistance and high temperature resistance of the multi-component alloy casting ball in a wet grinding environment can be improved, the breakage rate can be reduced, and the hardness and shock resistance of the multi-component alloy casting ball in a dry grinding environment can be ensured.

The double liquid quenching process of 9Cr2Mo straightening roller includes the first quick cooling in water to avoid high temperature decomposition of overcooling austenite to the martensite transformation temperature, and the subsequent cooling in oil for martensite transformation to raise the hardness, reduce quenching deformation and avoid cracking. Before being loaded to furnace, the straightening roller has its end surfaces and central through hole covered with plates to reduce the quench cooling of these parts and ensure hardness of HRC 35-40.

The invention discloses an aluminum alloy wheel heat treatment process comprising the steps of: loading, furnace feeding, solid solution treatment, discharging, quenching, primary aging treatment, feeding, secondary aging treatment, and discharging. During the solid solution treatment, a solid solution temperature is 540-550 DEG C, and a solid solution temperature maintenance time is 3.5-4.5h. During the primary aging treatment, the material is kept under room temperature for 24h. During the secondary aging treatment, the aging temperature is 115-125 DEG C, and an aging temperature maintenance time is 2.5-3.5h. With the aluminum alloy wheel heat treatment process provided by the invention, product comprehensive performance can be improved. On a basis that product hardness and tensile strength are ensured, product plasticity and toughness are substantially improved. Especially, impact toughness of the product is improved. With the process, impact strengths of thin spokes and wheels requiring lightweights can be greatly improved, such that requirements of high-requirement automotive main engine factories can be satisfied.

The invention discloses high-tear strength silicone rubber which comprises the following raw materials: 100 parts of methylvinyl crude rubber, 30-60 parts of white carbon black, 4-6 parts of vinyl silicone oil, 0.5-2 parts of hydroxyl silicone oil, 0.5-1 part of vinyltrimethoxy silane and 0.1-0.4 part of demoulding auxiliary. The invention also discloses a preparation method of the high-strength silicone rubber, which comprises the following steps: (1) putting the methylvinyl crude rubber, hydroxyl silicone oil, vinyltrimethoxy silane and a demoulding auxiliary into a kneading machine for kneading; (2) adding the white carbon black in 3-5 batches, mixing into agglomerate, heating and vacuumizing; and (3) cooling to 60-80 DEG C, adding the vinyl silicone oil in 3-5 batches, mixing into agglomerate and discharging and packaging to obtain the high-strength silicone rubber. In the invention, by adding the vinyl silicone oil into the raw materials of the high-strength silicone rubber, the tear strength of silicone rubber is remarkably improved while guaranteeing the hardness, elasticity, heat resistance and tensile strength of the silicone rubber; and the preparation method is simple in process, and the production efficiency is high.

The invention belongs to the technical field of fresh keeping agents, aims to develop a composite fresh keeping agent including microorganism derived effective components and plant derived effective components, is used for fresh keeping and corrosion resistance for picked fruits and picked vegetables, and provides a microorganism and plant derived composite fresh keeping agent for fruits and vegetables. The composite fresh keeping agent is prepared from a component A and a component B, wherein the component A consists of microorganism fermentation fluid and a propolis extract, and microorganisms are bacillus amyloliquefaciens Lh-1, candida intermedia and cryptococcus laurentii; and the component B consists of plant derived effective component mixed liquor and film forming liquor, wherein the plant derived effective component mixed liquor is prepared by mixing a tree peony bark water extract with a citrus peel alcohol extract, a rabdosia rubescens alcohol extract, a radix zanthoxyli water extract, a lycium ruthenicum alcohol extract, a Chinese herbaceous peony water extract, a clinopodium chinense alcohol extract and a citronella water extract, and the film forming liquor is prepared by mixing konjac glucomannan with chitosan. Through the adoption of the composite fresh keeping agent, the fruits and the vegetables are furthest prevented from mildewing and rotting, the effects for preventing the fruits and the vegetables from postharvest diseases are enhanced, the moisture dissipation of the fruits and the vegetables is reduced, the storage time of the fruits and the vegetables is prolonged, and a certain economic value is created.

The invention provides a water-erosion preventing method for a turbine blade by laser cladding. By adoption of the water-erosion preventing method, the laser cladding quality can be effectively ensured, the deformation of the laser-cladded blade can be reduced, and the requirement of different parts of the blade for the water erosion resistance can be ensured, so that the service life of the blade is prolonged. The water-erosion preventing method is characterized by comprising the following steps of: firstly carrying out roughening treatment on the surface of a blade cladding groove, then clamping the blade to a laser cladding machine tool, adopting a preheater to preheat the cladded areas of the blade, feeding powder by a side-shaft powder feeding head, and using a CO2 laser to clad stellite alloy powder in the blade cladding groove along the direction from the root of the turbine blade to the top of the turbine blade according to a mode of multilayered and multi-pass lapped cladding.

The invention relates to the technical field of wear-resistant cast balls, and discloses a nodular cast ball and a manufacturing method thereof. The nodular cast ball comprises the following chemical components in percentage by weight: 3.6-3.9% of C, 2.4-4.0% of Si, 0.5-0.8% of Mn, 0.1-0.2% of Mo, 0.1-0.2% of Cu, at most 0.05% of S, at most 0.05% of P, at most 0.3% of Cr and the balance of iron. The heat treatment quenching medium adopts a high-polymer quenching liquid, thereby avoiding oil quenching pollution and implementing energy saving and environment protection. The inoculation is completed by three times, so that the nodulizing effect reaches Grade 2-3, the product HRC reaches 60 above, the hardness impact toughness of the high-chromium ball reaches 12 J/cm<2> above, the number of times of falling after tempering reaches more than 30000, and the hardness of the ball after long-time impact and collision reaches 65 above; and the production cost is lower.