10results about How to "Brittle" patented technology

The organosilicon-polyurethane foam encapsulating material is composed of a component A and a component B. The component A comprises sucrose initial polyether polyol, sorbitol initial polyether polyol, a water-containing alcohol amine foaming agent, a catalyst and a halogen-free flame retardant, and the component B comprises an NCO-terminated polysiloxane-polyurethane prepolymer, silicone oil and a diluent. Wherein the water-containing alcohol amine foaming agent comprises isopropyl alcohol di-sec-butyl alcohol amine, a mixture of isopropyl alcohol sec-butyl alcohol amine and water. The two-component encapsulating material is used for encapsulating a new energy battery module.

The invention provides an intelligent strip heat treatment production line which comprises a base, a rack and a controller, winding drum mechanisms are oppositely arranged on the base, a moving mechanism is arranged at the top of the rack, a heat treatment mechanism is connected to the bottom of the moving mechanism, the heat treatment mechanism comprises a heat preservation box, the heat preservation box is provided with a channel, and a strip is arranged in the channel in a sliding mode. An induction heating pipe is arranged in the heat preservation box, first hydraulic rods are oppositely arranged in the heat preservation box up and down and connected with a shell, a plurality of T-shaped sliding rods are arranged on the shell in a sliding mode, conical parts on the T-shaped sliding rods are matched with conical through holes in the shell, one end of each T-shaped sliding rod is sleeved with a first spiral spring, and the other end of each T-shaped sliding rod is connected with an electromagnet. The electromagnet is provided with an air spraying hole, and the air pump communicates with the inner cavity of the shell through a first air pipe and a second air pipe. The electromagnet drives the T-shaped sliding rod according to the change of the magnetic force after the strip is heated, the on-off of inert gas is controlled, the heat treatment temperature is automatically controlled, and the problems of overburning and surface oxidation of the strip are avoided.

This invention provides a microcrystalline glass lens polishing device with automatic cleaning, relating to the technical field of machine tools or devices and accessories designed for grinding or polishing optical surfaces on lenses and other workpieces with similar shapes. Through the aforementioned configuration of liquid bladders, limiting frames, liquid inlets, and gas inlets, this invention enables the pressure control system to adjust the hydraulic pressure of each liquid bladder according to feedback from the pressure sensor array during microcrystalline glass lens polishing. This ensures a uniform and adjustable pressure distribution of the grinding layer on the curved surface of the microcrystalline glass lens, solving the problems of traditional rigid polishing heads being unable to adapt to the curved contours of microcrystalline glass lenses and unable to compensate for uneven pressure in real time. It achieves independent zoned control of polishing pressure. Simultaneously, by alternately or simultaneously introducing cleaning and polishing fluid through the liquid inlets, combined with the blowing and draining function of the gas inlets, automatic cleaning and media switching are achieved during the polishing process, improving the surface flatness of the microcrystalline glass lens and reducing manual intervention steps.

This invention discloses a low-carbon tin-containing free-machining steel and its production method. The weight percentage (wt%) of the chemical composition in the steel is: C 0.06-0.15, Si 0.10-0.30, Mn 1.50-1.80, S 0.40-0.60, P 0.06-0.10, Sn 0.30-0.50, Mn / S≥4.0, Sn / S≥0.80, O: 130-200ppm, with the remainder being iron and unavoidable impurities. This invention, through compositional design, controls Mn / S≥4.0 to improve the spindle morphology of sulfides, and Sn / S≥0.80 to achieve Sn aggregation near sulfides and grain boundaries, as well as aggregation and precipitation in other areas of the material matrix, which is more conducive to improving the material's machinability and reducing turning cracks. The Sn element is added using a combined addition technology of the tundish impact zone and the crystallizer nozzle, which improves the Sn yield.

The utility model discloses a fluorescent fragile paper anti-counterfeit label, and relates to the technical field of labels. The fluorescent fragile paper anti-counterfeit label comprises a gloss oil covering layer, an antibacterial coating, a fluorescent ink layer, a fragile material layer, an adhesive layer and a glassine release paper layer which are sequentially arranged, and the fluorescent ink layer contains fluorescent fibers. The fluorescent fragile paper anti-counterfeit label provided by the utility model not only has the fragility of a common fragile label, but also has the effects of fluorescent identification and alcohol color development, the fluorescent pattern is clear and visible under ultraviolet light, the color development can be realized by wiping with alcohol, the identification is convenient, and meanwhile, the fluorescent fragile paper anti-counterfeit label has good antibacterial performance and can be used for medical packaging. The anti-counterfeiting effect and the imitation difficulty are greatly improved, and meanwhile the production cost is reduced.

The invention belongs to the technical field of waste ceramic sheet recycling, and discloses a ceramic sheet substrate powdering method, which comprises the following steps: sintering a ceramic sheet substrate waste material for at least three times to obtain an intermediate, crushing and ball-milling the prepared intermediate, mixing with a solvent and a dispersing agent, and sanding to obtain slurry, carrying out spray granulation on the prepared slurry to obtain ceramic powder; in the sintering process of intermediate preparation, the sintering temperature is 800-1400 DEG C, and the sintering time is 1.5-3 h. According to the preparation method, the ceramic sheet is sintered, so that unit cells of the ceramic sheet continuously grow in a high-temperature state, the number of grain boundaries of the ceramic sheet is further reduced, the brittleness of the ceramic sheet is increased, the ceramic sheet is easier to grind, and in addition, the preparation method has the advantages that the preparation process is simple, and the preparation cost is low. The invention also discloses the ceramic powder prepared by using the powder preparation method of the ceramic sheet substrate.

The invention relates to the technical field of dairy products, and particularly provides yoghourt crisp chips and a preparation method thereof. The preparation method comprises the following steps: adding colloid and filler into cow milk, then adding a leavening agent for fermentation to obtain fermented milk, and drying the fermented milk to obtain the yoghourt crisp chips. The solid content of the fermented milk is 20.0 g / 100 ml to 24.0 g / 100 ml; when the temperature is 25 to 35 DEG C, the viscosity of the fermented milk is 8000 to 10000 Pa.s. According to the method provided by the invention, proportioning, fermentation forming and freeze-drying are integrated, so that the production energy consumption can be greatly saved, the texture of the fermented milk is reserved to the greatest extent while the overall texture and viscosity of the fermented milk are not damaged, and the moisture in the fermented milk is removed through a freeze-drying technology; the leisure snack yoghurt crisp chip which is high in nutrition and easy to absorb is successfully obtained.

The invention belongs to the technical field of coating preparation, and particularly relates to a high-hardness glaze coating and a preparation method thereof.The high-hardness glaze coating is prepared from, by mass, 20-30% of silicon fluoride acrylic emulsion, 5-20% of potassium silicate liquid, 8-35% of composite filler, 2-8% of functional additive, 2-6% of coalescing agent and 20-60% of water; wherein the composite filler is prepared from titanium dioxide, silicon dioxide, bentonite and attapulgite as raw materials. The prepared glaze coating is high in hardness, good in cracking resistance, water resistance and weather resistance and good in comprehensive performance.

The application provides a multilayer fiber reinforced composite material and a preparation method thereof. The multilayer fiber reinforced composite material is prepared by hot pressing and curing a prepreg stack, and the prepreg stack comprises: an alumina fiber plain cloth prepreg located at the center, and high-modulus poly-p-phenylene benzobisoxazole fiber unidirectional cloth prepregs, alumina fiber unidirectional cloth prepregs and high-strength glass fiber plain cloth prepregs symmetrically distributed on both sides of the alumina fiber plain cloth prepreg from inside to outside. The alumina fiber plain cloth prepreg, the high-modulus poly-p-phenylene benzobisoxazole fiber unidirectional cloth prepreg, the alumina fiber unidirectional cloth prepreg and the high-strength glass fiber plain cloth prepreg are all combined by corresponding fiber cloth and epoxy resin adhesive film through hot pressing. The multilayer fiber reinforced composite material is super-thin, has strong impact resistance and puncture resistance, and is environmentally friendly in process.

The application discloses a kind of concrete internal curing agent for high-temperature underground chamber and its preparation method, belong to concrete material technical field.The internal curing agent is composed of sealing film liquid and superabsorbent polymer, sealing film liquid is compounded by epoxy modified polyurethane emulsion, nano silicon dioxide, carboxyl-containing acrylate copolymer, temperature-sensitive polyether polyol and coupling agent in proportion, form the core-shell structure with sealing film liquid as shell, SAP as core, with good high-temperature resistance and alkali resistance.The internal curing agent does not affect the working performance of concrete, in the high-temperature environment of 30~90 DEG C, when the hydration process of cement causes the pH value of pore solution in concrete to rise, the temperature of concrete rises and internal water shortage occurs, sealing film gradually ruptures under the synergistic effect of high temperature and high alkali, releases the water stored by SAP, provides the required free water for the continuous hydration of cement in concrete, effectively improves the strength and durability of concrete under high-temperature conditions.