119results about How to "Not easy to crack" patented technology

The invention discloses a raw material formula of a bronzy sculpture. The raw material formula of bronzy sculpture includes the following substances in parts by weight: 40-50 parts of paraffin wax, 20-30 parts of talcum powder, 15-20 parts of bronze powder, 5-8 parts of rosin, 10-15 parts of magnesium oxide, 2-5 parts of a flexibilizer and 1-3 parts of a catalyst, wherein the catalyst is selected from phosphate, sulphate and oxalic acid; the flexibilizer is selected from plant straw fine powder, glass fibres and organic fibres. The raw material formula of bronzy sculpture disclosed by the invention has the following beneficial effects: the raw material formula of bronzy sculpture is more time-saving and labour-saving while realizing a bronzy effect compared with the mode of producing a sculpture by virtue of water-based clay and then manually polishing; moreover, the raw material formula of bronzy sculpture is good in viscosity, not liable to crack, and convenient to store for a long time.

The invention provides a transparent halogen-free fire-retardant paint composition, which consists of 100phr (Parts per Hundred of Resin) of adhesive, 50-400phr of solvent, 50-300phr of foaming agent, 10-200phr of carburetant, 1-100phr of carbonizing promoter and 0-100phr of auxiliary additive; wherein, the carbonizing promoter is a phosphorus-containing compound with reaction functional groups. A coat formed by the transparent halogen-free fire-retardant paint composition nearly generates no smoke when being heated but instantly generates an expanding layer of high toughness. The expanding layer is not likely to crack, does not melt, drop and droop and moreover, is capable of effectively obstructing oxygen and heat to fulfill fire-retardant effect. The paint composition has excellent compatibility and dispersibility among the ingredients, therefore has eminent transparency and can be used for the fire prevention of various buildings, furniture or in decoration without damaging the original appearance view thereof.

The permanent anchor rope for stabilizing slope is composed of external anchoring head, internal anchoring part and free part, and said internal anchoring part is formed from guy rope and more than one group of internal anchoring end bearing components which are distributed along the vertical direction, every group of bearing components has pressure-bearing plate and vertical pressure-beaning column whose lower end is fixedly connected with pressure-bearing plate, and the upper end of the guy rope is anchored to the external anchoring head, and its lwoer end is grouped and distributed in different bearing components, and respectively fixedly connected with pressure-bearing plate of correspondent group bearing component. Said invention can make the stretching force of anchor rope obtain permanent retention.

The invention discloses a 2Cr11MoVNbN forge piece for a steam turbine and a manufacturing method of the forge piece. The method comprises the steps that firstly, discharging is carried out; secondly, the charging temperature is raised and controlled to be smaller than 600 DEG C, preheating is carried out for 2 hours, the temperature is raised to 830 DEG C to 850 DEG C at the rising speed smaller than or equal to 150 DEG C/h, the temperature is kept for 3 hours, the temperature is raised to 1160 DEG C to 1200 DEG C at the rising speed smaller than or equal to 150 DEG C/h, the temperature is kept for 5 hours, and cooling is carried out; thirdly, forging is carried out; fourthly, annealing after forging is carried out; fifthly, preheat treatment is carried out, and incomplete annealing is achieved; sixthly, quenched-tempered heat treatment is carried out, wherein the temperature is raised to 1050 DEG C to 1070 DEG C at the rising speed smaller than or equal to 180 DEG C/h, the temperature is kept for quenching for 8.5 h, medium water cooling is carried out, the temperature rises to 620 DEG C to 640 DEG C at the rising speed smaller than or equal to 150 DEG C/h, the temperature is kept for one-time tempering for 16 h, air cooling is carried out, the temperature rises to 620 DEG C to 640 DEG C at the rising speed smaller than or equal to 150 DEG C/h, the temperature is kept for secondary tempering for 16 h, and air cooling is carried out; seventhly, stress relief annealing is carried out. In the forging and heat treatment process, a blank is not prone to cracking, high-temperature durability is good, and the mechanical property of products meets the requirement.

The invention relates to a flexible tile adhesive which comprises a component A and a component B. Mass ratio of the component A to the component B is 3:1. The component A is prepared from the following raw materials (by weight): 30-46% of Portland cement, 40-56% of washed-out baked sand, 5-8% of quartz powder, 0.1-0.4% of an antifoaming agent, 1.5-2.2% of cellulose ether, 0.2-0.3% of starch ether, 1.5-3% of redispersible latex powder, 0.4-0.65% of a water reducer and 0.1-0.2% of polypropylene fiber. The component B is prepared from the following raw materials (by weight): 50-75% of an elastic polymer emulsion, 20-45% of water, 0.2-0.5% of a surfactant, 0.3-0.5% of a preservative, 1-3% of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and 0.5-1% of an ethylene glycol antifreezing agent. The flexible tile adhesive has certain flexibility, is not easy to crack, hollow or fall, has good bleeding resistance, strong scratch resistance and shock resistance, and is easy to operate.

The invention discloses a forging method of a conical cylinder body of nuclear power equipment. The conical cylinder body is formed by forging 18MND5 and 185 tons of double vacuum steel ingots by using a 16,500-ton hydraulic press. The forging method comprises the following steps of: drawing out; oxygen-acetylene cutting; continuous upsetting; forging a center hole; drawing out and separating materials; and reaming. According to the forging method of the conical cylinder body of the nuclear power equipment, the temperature can be strictly controlled in the forging process, so that the temperature of a forging piece is always maintained in a range of 850-1,240 DEG C, the forging ratio at each step can be ensured and the forging piece formed by forging is not easy to generate cracks and hasuniform wall thickness; and the forging piece has the advantages of dense material, uniform components, reasonable metal streamline distribution and stable performance.

The invention relates to environment-friendly epoxy seaming paste and a preparation method thereof. The environment-friendly epoxy seaming paste is formed by mixing main paint with a curing agent according to a mass ratio of 2 to (0.8-1.2), wherein the main paint comprises the following components in parts by weight: 28-38 parts of epoxy resin, 1-6 parts of an epoxy reactive diluent, 1-5 parts of phemethylol, 0.1-0.5 part of a dispersant, 0.1-0.5 part of a defoamer, 0.5-2.5 parts of an anti-settling agent, 0.5-4 parts of bentonite, 10-20 parts of quartz sand, 20-50 parts of heavy calcium carbonate, 5-15 parts of talcum powder, 0.1-0.6 part of synthetic fibers and 8-10 parts of epoxy carbon black slurry; the curing agent comprises the following components in parts by weight: 28-38 parts of an amine-modified curing agent, 0.1-0.5 part of the dispersant, 0.1-0.5 part of the defoamer, 0.5-2.5 parts of the anti-settling agent, 0.5-4 parts of the bentonite, 2-5 parts of titanium dioxide, 10-20 parts of the quartz sand, 20-45 parts of heavy calcium carbonate, 5-15 parts of the talcum powder and 0.1-1 part of the synthetic fibers. The environment-friendly epoxy seaming paste prepared by the method has the advantages of very high bonding force, low possibility of cracking, water resistance and low harmful substance content, and is good in constructability.

The invention discloses a method for preparing a dust removal filter bag. The method comprises the steps of preparing a bag body, preparing a bag mouth and preparing a bag bottom and specifically comprises the following steps of: 1, preparing the bag body through ultrasonic welding; 2, preparing the bag mouth in a mode of sewing three layers of filter cloth and embedding a packing into the bag mouth; and 3, preparing the bag bottom in a mode of turning over the bag body and embedding the edge of the bag bottom. By the method for preparing the dust removal filter bag, the bag mouth is not easy to damage, and the service life is long; the cloth eyelets are avoided on the connection part of the bag body, so that the connection part of the bag body can bear high-pressure air flow; and the connection part of the bag bottom does not leak dust so as to bear high-pressure air flow.

The invention provides a forming process of an automobile engine exhaust system heat insulation cover and solves the problems of lower forming quality and high machining cost caused by integral casting and forming currently. The cold stamping machining and forming process is adopted, the automobile engine exhaust system heat insulation cover is divided into a left half cover and a right half cover through a longitudinal central line of an exhausting tube port, the left half cover and the right half cover are stamped and formed respectively, and the stamped and formed left half cover and right half cover are welded integrally.

The invention discloses an identity authentication method, a client, a server and a system, which can realize two-way identity authentication between the client and the server, thereby ensuring the security of the system. The identity authentication method includes: generating an intermediate character string based on the client identifier; generating a verification code and a first dynamic password based on the intermediate character string; wherein, the verification code is sent to the server; according to the first dynamic password and from the The second dynamic password received by the server determines whether the identity authentication is passed.

The invention relates to a coating and a preparation method and application thereof. The coating is characterized by comprising the following raw materials in parts by weight: 10-11 parts of metal powder and glass fiber powder in total, and 6-10 parts of glue components. The part between a metal plate and a fiberglass plate is coated with a plurality of layers of coatings at different raw material ratios, is solidified and formed into a composite board with the coefficient of linear expansion gradually varying to fiberglass coefficient of linear expansion from metal coefficient of linear expansion, so that the metal plate and the fiberglass plate are bonded more firmly and are not easy to shed, and the composite board is endowed with both good mechanical property and good corrosion resistance and impact resistance.

The invention discloses a terminal, a shell, a middle frame, and a processing method of the middle frame. The middle frame is used in the terminal, and comprises a middle frame body, wherein the middle frame body is processed with at least a UV painting layer which comprises polyurethane acrylate elastomer resin. The obtained middle frame has good tenacity in surface coat and is not prone to craze, and the yield is high.

The embodiment of the invention discloses a verification method and device, a server and a terminal and belongs to the field of a computer. The method comprises the steps that the server receives a verification code request message sent by the terminal; preset target voice data and an emotion identity corresponding to the target voice data are obtained; the target voice data is sent to the terminal; and the emotion identity input by a user is received, and if the emotion identity corresponding to the target voice data matches the emotion identity input by the user, it is judged that the terminal is verified successfully. Through adoption of the method, the device, the server and the terminal, the security of a verification system can be improved.

The invention provides a light anti-seismic partition plate with integrated architectural surface and wall body and a manufacturing method thereof. The partition plate comprises a frame mold, an inner mold, a filling layer, a daub mortar bonding layer and an architectural surface, wherein the frame mold is a clip-shaped side frame, the upper surface and the lower surface of the frame mold are connected with the inner mold, the inner mold is formed by two stress screens, one stress screen is coated and connected with a thick-hole screen, the filling layer is cast between the two stress screens, the outer side surfaces of the two stress screens are connected with architectural surface through daub mortar bonding layer, the architectural surface covers the frame mold, the daub mortar of the daub mortar bonding layer passes through the stress screens to be adhered together with the filling layer, so that the architectural surface, the daub mortar bonding layer, the filling layer, the inner mold and the frame mold are connected integrally. The partition plate is light and high in strength, cannot crack easily, has the effects of fireproofness, sound insulation, heat insulation, heat preservation, is simple to make, is convenient to install, does not need to be subjected to scraping, surface decoration and other work, so that the construction progress of a building is greatly shortened.

The invention provides a construction method for free wiring in a wall by pre-burying a vertical pipeline in a vertical hole of a building block by using the characteristic of a hollow building block, pre-burying a horizontal pipeline in a U-shaped building block and using a horizontal tie beam for the horizontal pipeline. The method has the effects that synchronization of the construction of the building block and pre-burying of water and electric pipelines can be guaranteed, the pipeline can be freely wired in the wall, the wall is not required to be cut, a groove is not required to be chiseled to bury the pipeline, the construction quality of the building block can be guaranteed, the wall decoration does not crack easily, the construction progress is quickened, and the manufacturing cost is reduced.

The invention discloses a production process for an aluminum alloy sectional material used for manufacturing of a fishing tool. According to the production process for the aluminum alloy sectional material used for manufacturing of the fishing tool, the problem that when the fishing tool and parts of the fishing tool are machined and the fluidity of an aluminum alloy material is insufficient, thequality and normal use of the machined fishing tool and the machined parts of the fishing tool are likely to be affected is solved. According to the key points of the technical scheme, the productionprocess is characterized by comprising the process steps of smelting, casting, hot extrusion forming and the like. By adding metal materials of strontium, zirconium and the like, the alloy fluidity isstrengthened, and the purpose that the aluminum alloy sectional material is more suitable for manufacturing of the fishing tool and the parts of the fishing tool is achieved.

The invention relates to a new method for patching pavement. Crack in pavement and fillers filled therein are heated firstly to melt asphalt thereof into liquid state so that the two end surfaces of the crack and the fillers are melted integrally with a heating temperature of 100-200 DEG C. The invention solves the problem that the traditional pavement patching glue and the end surfaces of the crack are not firmly spliced, and has the advantages of simple and convenient operation, good crack pouring quality, low cost, and energy-saving as well as environmental protection.

The invention discloses a compound foamed cement thermal-insulation board. The compound foamed cement thermal-insulation board contains the following components in parts by mass: 400-500 parts of cement, 150-250 parts of ceramsite, 50-70 parts of furnace clinker, 50-70 parts of coal ash, 30-50 parts of quartz sand, 30-50 parts of mica, 4-8 parts of silicon powder, 2-5 parts of activated carbon, 2-4 parts of triethanolamine, 2-4 parts of metal powder, 0.5-1 part of cellulose ether, 0.5-1 part of hydroxyethyl methylcellulose, 0.5-1 part of wood fibers, 0.5-1 part of polystyrene fibers, 0.5-1 part of polypropylene fibers, 0.5-1 part of a foaming agent, 0.2-0.4 part of a water reducing agent, 0.2-0.4 part of a foam stabilizer, 4-6 parts of an excitant, 0.2-0.4 part of a water repellent, 0.2-0.4 part of a coupling agent, 0.2-0.4 part of a bacteriostatic agent and 0.6-1 part of a coagulant. By virtue of the cooperative use of the components, the compound foamed cement thermal-insulation board has relatively good thermal insulation property, waterproof property, mildew-proof property and mechanical property and is unlikely to crack in the construction process.

The invention relates to the technical field of sealing coating of a medical kiln and discloses a sealing coating composition of a kiln, which contains the following components in percentage by weight: 10-40 percent of high-alumina fried powder, 20-35 percent of high-alumina fried aggregate, 20-30 percent of quartz sand and 15-35 percent of sodium silicate. The product contains no toxic components, resists high temperature without easily cracking, effectively prevents air from leaking, lowers the thermal consumption by 10-20 percent after use, is a multifunctional material capable of filling up the crack and repair the damage of (kiln walls or a kiln car) and improving the insulation property of the wall body, is the most effective and economic and suitable ideal material for overcoming the defect of the prior tile kiln and has simple construction and low cost.

The invention discloses a preparation method of a rare earth ion-doped large lead tungstate crystal. By the adoption of a crucible descent method, the preparation method is characterized in that the seed crystal is a round or square lead tungstate crystal with its radial dimension being 10-25mm; the crucible comprises a conical-form seed crystal end and the shoulder angle of the seed crystal end is 30-45 degrees; when the crystal grows, the maximum descent rate during the shoulder phase needs to be controlled within 0.4-0.8mm/h, and the maximum descent rate during the crystal growth phase is 0.8-1.2mm/h. By the adoption of the crucible descent method, the rare earth ion-dope PWO large crystal with its diameter being 50mm can be obtained from the growth of a minor-diameter seed crystal, and the prepared large crystal is not easy to crack during the machining process and can satisfy the application requirement of a luminescent material. In addition, the preparation technology provided by the invention is simple, and the grown crystal can satisfy the machining requirement without complex post-annealing, and the preparation method has industrial application values.

The invention relates to the field of bakery product processing, in particular to Guangdong amorphophallus albus and blueberry stuffed mooncakes. The Guangdong amorphophallus albus and blueberry stuffed mooncakes comprise skin and filling. The filling is prepared from 100 parts of smashed amorphophallus albus, 10-30 parts of blueberry jam, 10-20 parts of modified starch, 10-30 parts of maltose and 10-20 parts of edible oil. The filling is prepared in the steps of smashed amorphophallus albus making, blueberry jam making, filling making, refrigeration and the like. Amorphophallus albus and blueberry are used as main materials to make the Guangdong amorphophallus albus and blueberry stuffed mooncakes with novel taste and color, the filling looks bright and tastes special, the mooncakes can strengthen the spleen and stomach and protect eyesight and also have other health-care functions, and the style of traditional Guangdong mooncakes is reserved.

The invention discloses high-strength self-compacting concrete and a preparation method thereof, relates to the technical field of concrete, and solves the problem that the whole concrete is cracked due to the fact that sulfate ions easily erode the concrete, and the high-strength self-compacting concrete comprises the following components in parts by weight: 420-460 parts of a cement raw material; 58 to 62 parts of mineral powder; 50 to 60 parts of fly ash; 850 to 860 parts of medium sand; 850-860 parts of a crushed stone raw material; 9-11 parts of a water reducing agent; 140 to 145 parts ofwater; 3-6 parts of magnesium fluosilicate; and 12-18 parts of a filling reinforcing material. The high-strength self-compacting concrete provided by the invention has good and stable sulfate ion corrosion resistance, and is not easy to crack as a whole when being applied to regions with higher sulfate ion content.

The invention discloses a lock which comprises a lock body with a built-in lock cylinder and a key used in cooperation with the lock cylinder. The lock body comprises a drive device connected with a power source, the lock cylinder connected with the drive device, an embedded chip and a control switch controlling the drive device to work. The key comprises a handle with a key front face mark and akey body connected with the handle. Surface grooves are correspondingly arranged in the front face and the back face of the key body. Through holes communicating the surface grooves in the front faceand the back face are arranged in the surface grooves. Insulation layers are arranged on the inner walls of the through holes and the surfaces of the surface grooves, and an electric conductor is arranged in each through hole. According to the new lock, the information detection technology and the mechanical lock are combined, and the protection safety coefficient and the intelligent degree are greatly increased.

The invention discloses a user identity authentication method and a user identity authentication device based on a user behavior feature. According to the method, a quantized value of the behavior feature can be acquired when a user to be authenticated triggers preset business operation, and a behavior feature identifier of the behavior feature can be determined; the behavior feature comprises oneor more of the gyroscope fluctuation behavior feature, the sliding behavior feature and the click behavior feature; according to the behavior feature identifier, a variation range of the quantized value of the behavior feature corresponding to the behavior feature identifier is acquired from a behavior feature library; and validity of the user to be authenticated is determined according to a relation between the quantized value of the behavior feature and the acquired variation range of quantized value. Different users have different postures for holding a same terminal and operation habits,so that the quantized value of the behavior feature also has different variation ranges when different users trigger the same business operation, and is not prone to break and simulate, so that the method and the device can improve identity authentication security of the user.

The invention relates to a preparation process of CF50 concrete. The CF50 concrete comprises the following components in parts by weight: 160 to 170 parts of water, 350 to 360 parts of cement, 140 to150 parts of coal ash, 30 to 40 parts of micro-silicon powder, 680 to 700 parts of medium sand, 1050 to 1100 parts of gravel, 38 to 45 parts of steel fiber, 0.5 to 1.0 part of dispersant and 9.1 to 9.5 parts of water-reducing agent, wherein the gravel comprises 700 to 750 parts of small gravel and 250 to 280 parts of big gravel, the grain size of the small gravel is 5 to 25 mm, and the grain sizeof the big gravel is 5 to 10 mm. In the scheme, adhesive adopts the cement, the coal ash and the micro-silicon powder, the gravel comprises big gravel and small gravel, the big gravel serves as aggregate, the small gravel is filled in the big gravel and is used for guaranteeing the structural strength of the concrete, the micro-silicon ash is used for enhancing the hardness of the concrete, the steel fiber is used for enhancing the toughness of the concrete, and the prepared concrete has good anti-cracking effect, is not liable to generate ash and has high structural strength.

The invention provides an autoclaved curing kettle to solve the problems of squeezing out air in the kettle so that the vacuum effect can be achieved in the kettle, and conducting comprehensive heating and pressurization on bricks in the kettle by releasing hot steam so that a good drying and reinforcing effect can be achieved for the bricks and the bricks can be firm and not be prone to cracking. The autoclaved curing kettle comprises an autoclaved curing kettle body, an outer kettle wall, and inner kettle wall, steam openings, air suction openings, a kettle cover, a kettle cover seal and kettle cover hinges. The autoclaved curing kettle is characterized in that the outer kettle wall is connected with the inner kettle wall to form the autoclaved curing kettle body, the plurality of steam openings and the plurality of air suction openings are formed in the inner kettle wall, the kettle cover is arranged above the autoclaved curing kettle body, the kettle cover is connected with the autoclaved curing kettle body through the kettle cover hinges, and the kettle cove seal is arranged on one side of the kettle cover. The autoclaved curing kettle has the advantages that the aim of completely drying and reinforcing the inner portions and the outer portions of the bricks can be achieved by conducting comprehensive heating and pressurization on the bricks in the kettle, and the bricks are not prone to cracking, firm, durable in use and high in resistance to pressure after undergoing cooling and depressurization.

The invention discloses a manufacturing method of a manganese-zinc ferrite magnetic core and belongs to the technical field of composite ferrites. The preparation method comprises the following stepsof 1) burdening, 2) wet mixing and sanding, 3) spray granulation, 4) presintering, 5) secondary burdening, 6) secondary wet mixing and sanding, 7) spray granulation, 8) aging, 9) green body pressing and 10) sintering, wherein the particle sizes D50 of the step 2) and the step 6) are 1.0-1.5 microns, 4) presintering is conducted at 820-900 DEG C, and the temperature is kept for 1.5-3 hours, (7) inthe granulation process, PVA accounts for 0.3%-0.64% of the mass of the magnetic powder, a flow angle is smaller than or equal to 30 degrees, and a surfactant accounting for 0.05%-0.15% of the mass ofthe magnetic powder is added after granulation is completed, and (9) bidirectional pressing is adopted, and the bearing pressure of the powder is 1.5 T/cm<2> -1.7 T/cm<2>. By means of the method, theintegrally-formed large-specification magnetic core can be manufactured, the magnetic core is not prone to cracking in the forming and sintering process, and the rate of finished products is high.

The invention provides a composite foamed cement board good in water-resistance property. The cement board is prepared from the following components in parts by mass: 140-160 parts of silicate cement, 15-20 parts of coal ash, 3-5 parts of gypsum, 0.3-0.5 part of polypropylene fiber, 0.1-0.3 parts of polypropylene fiber, 0.4-0.6 parts of sodium metasilicate, 0.2-0.4 parts of calcium stearate, 0.3-0.5 parts of triethanolamine, 2-3 parts of aluminum sulfate, 0.4-0.6 parts of magnesium chloride, 0.1-0.3 parts of sodium nitrate, 0.8-1.2 parts of a foaming agent, 0.3-0.5 parts of a foam stabilizer, 3-6 parts of a water repellent and 125-135 parts of water. The composite foamed cement board good in water-resistance property, disclosed by the invention, is high in tensile strength and compressive strength; during exterior wall thermal insulation construction, the composite foamed cement board can be used for preventing the exterior wall from cracking, and is good in water-resistance property, free from pulverization in water, consistent in pore size in the foamed board and excellent in heat insulation property.

The invention discloses a refrigeration device and a panel used for the same. The refrigeration device comprises a baseplate and an appearance film arranged on the surface of the baseplate, wherein a polyethylene glycol terephthalate film or a biaxially oriented polypropylene film is used as the appearance film. As various required appearance effects are available for the panel used for the refrigeration device according to the embodiments of the invention, the problem of chromatic aberration caused by mixing a main material with a base material of different colors during panel production of traditional refrigeration devices is solved, performance of the panel is improved, the panel is unlikely to crack, and reject ratio during producing, transporting and pre-assembling processes is reduced; and in addition, equipment investment of the appearance film coating on the surface of the baseplate is small, the adaptability is strong, and the products requiring frequent color changing are applicable.

The invention discloses a Si-Al-O-N-B multiphase ceramic material and a preparation method thereof. The preparation method of the Si-Al-O-N-B multiphase ceramic material comprises the steps of pressing mixed powder comprising 25-55 parts by weight of silicon nitride, 10-40 parts by weight of aluminum nitride and 5-40 parts by weight of aluminum oxide into a biscuit, then soaking the biscuit in liquid precursor borazine of BN, and then performing crosslinking solidification, pyrolysis and sintering, wherein the dielectric constant is smaller than 6. The multiphase ceramic material disclosed by the invention is difficult to crack; the preparation process is simple, process parameters can be adjusted according to the properties of a target product, and meanwhile, the problem that the shaping of a complex component is difficult can be solved by using the good rheological property of the precursor.