5results about How to "Prevent overproduction" patented technology

The invention discloses a WS2 / W composite material, a preparation method thereof and application of the WS2 / W composite material in a sodium-sulfur battery. The preparation method comprises the following steps: uniformly stirring isopropanol and acetone to obtain a mixed solution A; weighing tungsten hexachloride, adding the tungsten hexachloride into the mixed solution A, and uniformly stirring to obtain a mixed solution B; transferring into a reaction kettle, sealing and putting into a drying oven for reaction; after the reaction is finished, carrying out suction filtration and washing on a product by using industrial alcohol, and drying in a vacuum oven to obtain W18O49 powder; the method comprises the following steps: weighing W18O49 powder and sublimed sulfur, respectively and correspondingly placing the W18O49 powder and sublimed sulfur in a first porcelain boat and a second porcelain boat, then placing the second porcelain boat in the first porcelain boat, placing the second porcelain boat in a tubular furnace, introducing argon into a furnace chamber of the tubular furnace, after the pressure of the furnace chamber is increased to 0.2-0.3 MPa, keeping the airtightness of the system, heating to 1100-1300 DEG C at the rate of 20 DEG C / min, keeping the pressure at 0.2-0.3 MPa in the heating process, and keeping the temperature for 2-3 hours; and after the temperature reaches 1100-1300 DEG C, continuously preserving heat for 2 hours, introducing argon, cooling to room temperature, and collecting to obtain WS2 / W powder. The problems of poor conductivity of the sulfur positive electrode, polysulfide shuttle effect and slow reaction kinetics are solved.

This invention discloses a smelting method for large-size Fe-based superalloys for gas turbines, comprising two steps: casting metal raw materials into 710mm electrode rods in a vacuum induction furnace, and then remelting the electrode rods in a vacuum arc remelting furnace to produce 810mm steel ingots. This invention employs a combined vacuum induction melting and vacuum arc remelting (VIM+VAR) process, which effectively controls Ti element burn-off to ensure its content meets standards, and avoids excessive formation of Ti-based carbonitrides, fundamentally mitigating the negative impact on the purity of the molten steel.

A method for microwave-assisted extraction of blue indigo mud from Strobilanthes cusia belongs to the field of natural dye preparation. The method comprises the following steps: 1) mixing fresh Strobilanthes cusia leaves with water according to a specific solid-liquid ratio, and performing microwave-assisted treatment to make the indigo precursor quickly dissolve out; 2) after the extraction liquid is cooled by standing, an alkali agent is added for oxidation precipitation, and after solid-liquid separation and drying, the blue indigo mud with high indigo content is obtained. The indigo yield of the present application can reach 0.32%~0.42%, and the purity of indigo in the product is stable at more than 80%, and the highest can reach 87.49%. The method realizes efficient and rapid extraction of indigo from Strobilanthes cusia, significantly shortens the time of traditional indigo preparation process, and is simple, environment-friendly, stable in product quality, and suitable for industrial production.

The invention discloses a multifunctional hair cosmetic active raw material as well as a preparation method and application thereof. The active raw material is cystine dimaleate amide. The disulfide bond-containing molecule with a symmetric maleic acid structure is used as a sulfydryl reconnection reagent, so that a traditional oxidized sulfydryl reconnection reagent represented by hydrogen peroxide, bromate, iodate and the like is avoided, the content of the disulfide bond in hair is maintained while the hair is shaped, and particularly, after multiple times of perming, the hair is more comfortable to use. Compared with the prior art that a large amount of disulfide bonds are consumed after perming, the supplement and the shaping method are used for perming, so that the hair can be effectively and repeatedly permed according to the willingness of consumers, and the hair styles can be changed for multiple times.

The invention provides a composition containing ergothioneine as well as a preparation method and application of the composition. A first aspect of the present application provides a composition comprising ergothioneine, anthocyanin, and bergamotin. Anthocyanin can effectively prevent excessive generation of melanin and improve existing melanin pigmentation to a certain extent, and meanwhile bergamottin can inhibit melanin generation and improve melanin pigmentation through multiple signal channels. On the basis, the two components are compounded and matched with ergothioneine with certain anti-inflammatory and anti-oxidation effects, and the melanin pigmentation improving effect better than that of single use or reuse of the two components can be achieved.