36results about How to "No obvious precipitation" patented technology

The invention belongs to the field of nickel-based high-temperature alloys, and particularly discloses a nickel-cobalt-based high-temperature alloy with favorable structure stability (no Ni3Ti phase separation) and easiness for processing. The nickel-cobalt-based high-temperature alloy can be processed by using a casting and forging (C and W) process and a powder metallurgy process and is mainly suitable for bearing parts with high stress at the high temperature of 750DEG C, such as a turbine disc and a blade material in an aeroengine. The nickel-cobalt-based high-temperature alloy comprises the following chemical components in percentage by weight: 0.1-10 percent of Ru, 22-35 percent of Co, 10-20 percent of Cr, 0.10-5 percent of Ta, 0.10-5 percent of W, 0.10-5 percent of Mo, 3-10 percent of Ti, 0.2-5 percent of Al, 0.01-0.10 percent of Zr, 0.10-1 percent of V, 0.10-5 percent of Nb, 0.1-2 percent of Hf, 0.005-0.15 percent of C, 0-2 percent of Fe, 0.01-0.1 percent of Mg, 0.05-0.50 percent of Mn, 0.005-0.1 percent of B and the balance Ni. According to the nickel-cobalt-based high-temperature alloy disclosed by the invention, the Ru element is added under the existence of a TMW alloy containing Co and Ti with high contents; and under the condition that the high temperature bearing capacity of the alloy is ensured, the structure stability (no Ni3Ti phase separation) and the processability of the alloy can be remarkably improved.

The invention provides a kind of intestine-relieving tea and a preparation method thereof. The raw materials of the intestine-relieving tea include radish seed, medlar fruit, perilla seed, chrysanthemum flower, white lentil, light bamboo leaf, mangosteen fruit, Sophora japonica flower, dark plum, cassia seed, lily, kudzu root, Hawthorn, peach kernel, licorice, malt, and green tea are the main raw materials. This product tastes slightly sweet and astringent, transparent without obvious precipitation. The invention also discloses a preparation method of the intestine-relieving tea, which largely retains the functional components in the product. The intestine-relieving tea is extracted from the compatibility of multi-flavored Chinese medicinal materials, and all raw materials are from the catalog of "Medicine and Food Homology". Its main functions: clearing heat and improving eyesight, moistening intestines and defecating, nourishing yin and moistening lungs, promoting body fluid and quenching thirst, promoting qi and eliminating food, invigorating spleen and appetizing.

The invention belongs to the technical field of concrete admixture, and in particular relates to a concrete air entraining agent which is prepared from the following raw materials in parts by weight: 40-60 parts of rosin powder, 10-18 parts of sodium hydroxide, 6-16 parts of sulfuric acid, 8-18 parts of glycol, 5-13 parts of bisphenol A, 7-15 parts of pentaerythritol and 90-130 parts of water. When being used in concrete, the concrete air entraining agent is stable in bubble, appropriate in size, uniform in distribution, capable of increasing strength of concrete, and capable of improving peaceability of concrete.

The invention discloses a low-gloss body matte type water-based polyurethane resin, which is prepared from the following raw materials by weight: 30-70 parts of polymer polyol, 5-15 parts of self-made sulfonate type polymer polyol, polyether modified 0-10 parts of silicone oil, 2-8 parts of hydrophilic chain extender, 15-45 parts of isocyanate, 1-5 parts of cross-linking agent, 1-5 parts of diol chain extender, 2-8 parts of diamine chain extender. The invention adopts the self-made sulfonate type polymeric polyol, and applies it in the preparation process of the bulk extinction type waterborne polyurethane resin, and by introducing the polyether modified silicone oil into the structure, it cooperates with other components to play the role of With good synergy, a bulk matte waterborne polyurethane resin with low gloss is prepared; it also has good leveling, smoothness, wear resistance and scratch resistance, and there is no precipitation, powder drop, whitening and Heavy hand marks and other problems; storage stability has also been significantly improved.

The invention provides a ginseng-acanthopanax oral liquid and a production process thereof. The following raw materials are adopted in parts by weight: 1 part of ginseng, 10-20 parts of acanthopanax and 15-40 parts of purified water. The following index system is adopted to strictly control product quality: the content of syringin is more than or equal to 2.0mg / 100ml, the pH value is 4.0-6.0, and the soluble solid content is more than or equal to 1.0%. The production process of the ginseng-acanthopanax oral liquid, provided by the invention, omits a step of alcohol precipitation, and the loss of ginseng polysaccharides is avoided, so that good anti-fatigue effect of the oral liquid is guaranteed; and the whole technological process adopts sterile operation, high temperature sterilization and suitable packing material, so that the microbiological safety of a product is guaranteed, the product is stable, no antiseptic substance is required to be added, and a food is safe and reliable.

A method of preparing nanorod crystal hydroxylapatite hydrosol is provided. The method includes 1) preparing a soluble calcium salt solution having a concentration of 0.1-0.5 M, adding citric acid to form a mixed solution A, and preparing a soluble phosphate solution B having a concentration of 0.1-0.5 M, 2) adding dropwise the solution A into the solution B, stirring to form a mixed solution C, adding ammonia water to adjust the pH value of the solution to be 9-11, reacting at room temperature, and ageing the mixed solution C at room temperature for at least 24 h, 3) stirring the obtained mixed solution C for at least 1 h, and ageing, 4) centrifuging the solution to obtain a precipitate, and centrifuging and washing the precipitate with deionized water and absolute ethyl alcohol to obtain hydroxylapatite nanorods, and 5) dispersing the nanorods into deionized water to form a dispersion having a concentration of 10-20 wt% to obtain the nanorod crystal hydroxylapatite hydrosol. The method has characteristics of nontoxic raw materials, a low cost, a simple synthetic process, easy implementation, stable product quality and good process repeatability, and has a good application prospect in the fields of biomedical materials, coating materials, and the like.