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

2Cr11MoVNbN forge piece for steam turbine and manufacturing method of forge piece

ActiveCN106282836ANot easy to crackHigh temperature durabilityEngineeringStress relief
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.
Owner:ZHANGJIAGANG HAILU ANNULAR FORGINGS

Environment-friendly epoxy seaming paste and preparation method thereof

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.
Owner:SKSHU PAINT

Light anti-seismic partition plate with integrated architectural surface and wall body and manufacturing method thereof

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.
Owner:YUNNAN BANZHU TECH CO LTD

User identity authentication method and device based on user behavior feature

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.
Owner:BEIJING BANGCLE TECH CO LTD

Autoclaved curing kettle

InactiveCN103624869ANot easy to crackStrong pressure resistanceCeramic shaping apparatusEngineeringBrick
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.
Owner:天津滨海新区大港鹏达砖厂
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