33results about How to "Reduce the possibility of precipitation" patented technology

The invention discloses a low-oxidizability continuous casting covering slag comprising the following chemical components in percentage by weight: 15-25% of CaO, 20-35% of Al2O3, 10-20% of SiO2, 2-5% of Li2O+K2O, 2-10% of B2O3, F<=10%, Na2O<=10%, 5-15% of MgO+BaO+SrO, and the balance of carbon and inevitable impurities. Furthermore, the hemispheric point temperature of the continuous casting covering slag is controlled within a range from 1000 DEG C to 1200 DEG C, and the viscosity is controlled within a range from 0.2 pa. s to 0.6 pa. s. Practices show that the low-oxidizability continuous casting covering slag has good combination property and meets the requirements of continuous casting processes of steel types, i.e. TRIP (Transformation-Induced Plasticity) steel with high-content oxidizable elements i.e. Al, Ti or rare earth, and the like, silicon steel, container steel, and the like and realize the multi-furnace continuous casting.

The invention discloses a solvent-free anticorrosive coating based on a polyurea elastomer. The coating contains a component A and a component B, wherein the component A contains the following substances in parts by weight: 70-100 parts of aromatic diisocyanate and 5-20 parts of a viscosity reducer; and the component B contains the following components in parts by weight: 50-70 parts of halogenated amino-terminated resin, 20-30 parts of an amino-terminated chain extender, 15-30 parts of liquid-state polysulfide rubber, 20-40 parts of pigments, 0.5-5 parts of a coupling agent and 0.5-10 parts of a hydroxyl ultraviolet absorber. By utilizing the halogenated amino-terminated resin and a small amount of liquid-state polysulfide rubber, the solvent-free anticorrosive coating disclosed by the invention has both good corrosion resistance and relatively good elasticity and wear resistance.

The invention discloses a lead-acid storage battery and a preparation method thereof, which comprises a positive plate and a negative plate. The coating of the negative plate of the lead-acid battery comprises the following raw material components in parts by weight: 1000 parts of lead powder, polyasparagus 1~20 parts of acid or polyaspartate, 2~50 parts of silicon dioxide, 2~10 parts of barium sulfate, 4~20 parts of expansion agent, 80 parts of acid, 10 parts of mixed carbon, 106 parts of deionized water , the present invention effectively delays the battery failure caused by the sulfation of the negative electrode, and controls the hydrogen evolution of the negative electrode caused by the addition of a large amount of carbon, so as to achieve the purpose of improving the capacity and cycle life of the lead-acid battery, and can increase the carbon content of the negative electrode of the battery to a certain extent.

The invention relates to an albumin nanosphere composition medicament, method for preparing and use, wherein the composition medicament is prepared from the following raw materials (by weight ratio): albumin 1000-2000, tanshinone IIA salt 20-200, vegetable oil 200000-400000, PEG6000 100-200, N-(2-mercapto propionyl)-glycine 20-100, and lysine hydrochloride 20-30.

The invention is applicable to the technical field of printer ink supply devices, and provides an ink supply device of an industrial digital printer. The ink supply device of the industrial digital printer comprises an inkjet print head; and the ink supply device of the industrial digital printer is further comprises an active ink supply path, an internal circulation ink path and an outer circulation ink path; the active ink supply path is provided with secondary filtering and is used for supplying ink to the inkjet print head; the internal circulation ink path is used for removing bubbles inthe ink supplied to the inkjet print head and preventing ink from flowing back to the inkjet print head through the internal circulation ink path; and the outer circulation ink path is used for pumping redundant ink back into the active ink supply ink path. According to the ink supply device, the flowing speed of ink is increased, the air accumulation phenomenon of a filter is solved, the possibility of ink precipitation is reduced, and an unsmooth ink path is prevented; a traditional secondary ink box is omitted, the risk of wire breakage of the inkjet print head is reduced, smoothness of inkjet is improved, the backflow problem can be rapidly solved when ink backflow occurs, and the printing recovery time of the printer is greatly shortened.

An extraction method of sea cucumber polypeptide contains steps of: embathing, high-pressure stewing, enzymatic hydrolysis, deodorizing, filtering, condensation, drying and finished product packaging. The extraction method is characterized in that high-pressure stewing: the temperature is 120-130 DEG C, the pressure is 0.13-0.15 MPa and stewing lasts for 2 hours at constant temperature and constant pressure; enzymatic hydrolysis: the temperature is cooled to 54-56 DEG C after heating and sterilizing, NaOH is added to adjust PH to 7.0 and 0.5% of sea cucumber special-purpose enzyme to perform enzymatic hydrolysis for 6 hours; deodorizing: 17% of active carbon is added for deodorizing; filtering: a standing liquid firstly passes through a candle filter, then passes through a barrel filter and is finally filtered to a clear liquid storage tank; and condensation: condensation pressure is minus 0.04-minus 0.06 MPa, condensation temperature is 75-80 DEG C, and Baume degree determined during the condensation process is controlled at 10. The invention has the following advantages of: sea cucumber is changed into a fully water soluble active component after biological enzyme hydrolysis; the content of small peptides in the product is high, which is more beneficial to the absorption and utilization of the sea cucumber active component; and sea cucumber polypeptide is more acceptable in taste after deodorizing by active carbon. The invention is suitable for the extraction method of sea cucumber polypeptide.

The application relates to the field of TPE particles, and specifically discloses an aging-resistant TPE particle and a preparation method thereof. An aging-resistant TPE particle is made of raw materials comprising the following parts by weight: a base material mixed with SBS and SEBS; rubber oil; oil-locking additive; filler; toner; antioxidant; anti-aging additive; its preparation The method is as follows: mix the base material with rubber oil, stir evenly and let it stand for 30-60 minutes to obtain a first-class mixture; put oil-locking additives, fillers, toner, antioxidants and anti-aging additives into the first-class mixture, mix homogeneously to obtain a secondary mixture; extrude, pelletize, and dry to obtain TPE pellets. The anti-aging TPE granules of the present application have better aging resistance and longer service life; in addition, the preparation method of the present application is simple to operate, can promote the full reaction of each raw material component, and ensures that the TPE granules have better anti-aging performance.

The invention discloses a filtering device and a filtering method and relates to the filtering technical field, for reducing the production cost. The filtering device comprises a main groove, a liquid inlet pipe, a filter, a liquid outlet pipe, wherein the main groove is used for containing solution, the liquid inlet pipe is provided with a first inlet and a first outlet, the first inlet is arranged below the liquid level of the solution in the main groove, the first outlet is connected to the filter, the filter is used for filtering the solution, the liquid outlet pipe is provided with a second inlet and at least one second outlet, the second inlet is connected to the filter, the at least one second outlet is positioned in the main slot and faces to the bottom of the main slot obliquely or vertically, at least the first inlet in the first inlet, the first outlet, the second inlet and the second outlet is connected with a conduit, the surface of the conduit is provided with a plurality of through holes, and the plurality of through holes face to at least two different directions. The filtering device and the filtering method can be used for filtering.

The invention relates to a gully device for automatic interception of early rain, which comprises a well chamber and a well top cover, and a first partition and a second partition are arranged at intervals in the well chamber, and the first partition and the second partition are A plate divides the well from one side to the other into a main well, a secondary well and a discharge well. The automatic intercepting gully device of the present invention does not need additional electric start-stop and control equipment, and realizes the effective automatic interception of the initial rainwater, and sends it to the sewage treatment plant for treatment through the urban sewage pipeline system. In this way, the adverse impact of initial rain on the environment of the downstream rainwater receiving water body is reduced, and at the same time, the possibility of sedimentation of muck and suspended matter in the urban rainwater pipeline system is reduced, and the maintenance workload of the urban rainwater pipeline system is reduced.

The invention discloses a coloring master batch for a profile protective film, belonging to the field of plastic additives. The master batch comprises the following raw materials in percentage by mass: 60-75% of titanium dioxide, 15-30% of LLDPE (linear low density polyethylene), 5-10% of mPE, 0.3-0.5% of silicone and 4-10% of EVA, wherein the volatilization amount of low molecular weight organic matters of titanium dioxide is less than or equal to 0.15%; and titanium dioxide is rutile type titanium dioxide, and the average particle size is 0.2-0.25 micron. The invention also discloses a preparation method of the coloring master batch. Compared with a conventional preparation method, the preparation method is lower in temperature of extrusion processes, and can be used for effectively controlling the volatilization amount of low molecular weight matters. The coloring master batch disclosed by the invention has the advantages that the coloring master batch has high titanium dioxide content, large adding proportion, high dispersion performance and good shading effect; film products are smooth and do not have crystal points; the low molecular weight organic matters are low in volatilization amount; and the coloring master batch is good in printing ink and gluing adhesive force and convenient to use, and low-temperature processing, energy conservation, high efficiency and low cost can be achieved.