113results about How to "The preparation method is simple and convenient" patented technology

The invention provides a hardfacing electrode and a preparing method thereof and relates to the field of welding. The hardfacing electrode comprises a coating and a core wire wrapped in the coating. The preparing raw materials of the coating comprise coating alloying agents. The preparing raw materials of the coating alloying agents comprise, by weight, 5-8.8 parts of C, 35-57.5 parts of Cr, 6-10.5 parts of Mn, 11.3-50 parts of W, 3.8-12 parts of Mo, 5-7.5 parts of B and 3.8-6.3 parts of Si. The invention further provides the preparing method of the hardfacing electrode. The preparing method mainly comprises the steps of raw material weighing, material mixing, pressing, airing, low-temperature drying and high-temperature drying. The hardfacing electrode obtained through the method has the advantages that deposited metal chemical component consistency is good, a formed overlaying layer is high in hardness, and residues can be easily removed.

The invention relates to the technical field of medicine, and provides a colloidal sulfur liquid dressing and a preparation method thereof. According to the dressing, colloidal sulfur, total anthraquinone, ultra-low molecular hyaluronic acid, ceramide, lavender essential oil and silicone serve as main active ingredients, and the problem that sulfur is hardly soluble in water is solved; the volatility and high oxidability of the sulfur are reduced, and the defects that when the sulfur is directly used, the smell is unpleasant and clothes are contaminated are overcome; adverse reactions caused when the sulfur is in direct contact with a large part of the skin are eliminated. The dressing has the advantages of killing insects and bacteria, relieving itching, promoting wound healing, inhibiting scar formation, repairing and protecting the skin and the like, and is particularly suitable for treating acne, rosacea, skin toxoplasmosis, trichomonal pruritus vulvae, tinea manus and pedis, onychomycosis, tinea versicolor, psoriasis, tinea capitis, seborrheic dermatitis and neurodermatitis. The preparation method of the colloidal sulfur liquid dressing is scientific in formula, simple in preparation process, convenient to use and capable of being used for industrial production.

The invention relates to special cement-based self-leveling mortar for indoor floor heating and a preparation method thereof. The special cement-based self-leveling mortar is prepared by mixing powder and water according to the mass ratio of 1:(0.22-0.25), wherein the powder is prepared from the following components in parts by weight: cement, anhydrite, alpha semi-hydrated gypsum, 40-70-mesh heat-conducting filler, 70-140-mesh heat-conducting filler, 200-mesh heat-conducting filler, 500-mesh heat-conducting filler, heat-conducting soft metal wires with the length of 6mm, redispersible rubber powder, cellulose ether and the like. The invention overcomes the defects that: cement-based self-leveling needs to be used for leveling when the existing indoor floor heating is laid, however, no cement-based self-leveling special for floor heating exists in the market at present, common cement-based self-leveling is mostly used, the heat conductivity coefficient is low, the heat conduction rate is slow, the heat loss amount is large and the like. The method is based on special cement and Portland cement which cooperate with the heat-conducting filler with higher heat conductivity coefficient, the heat-conducting soft metal wire and other preferable additives, so that the mortar has the advantages of high heat conductivity coefficient, high heat-conducting rate and low heat-conducting loss.

The invention discloses a sputtering target capable of enhancing wear resistance and corrosion resistance of coated glass and a preparation method of the sputtering target . The sputtering target mainly comprises a zirconium based material; the shape and specification of the target are not limited, and a rotating target and a plane target can be manufactured; the rotating target is prepared through the equivalent cold spraying and plasma spraying technology; the plane target is prepared through the following steps: target blocks are prepared through the powder metallurgy technology, and then the target blocks are spliced and bound to form a large-size target; the structure of the target is compact, the components of the target are uniform, and the electrical conductivity of the target is excellent; the density is (5.3-5.9) g/cm3, and the relative density is greater than 90%. The target has excellent sputtering performance, stable arc light, and a sputtering coating rate of (0.5-1.0) nm*m/min. A plated zirconium based film is used as a protective film and has excellent binding force with adjacent films and excellent abrasive resistance and weather fastness; after film coating, glass requires no film protection, can be stored for a long time, facilitates deep processing in different places, effectively prevents coated glass from scratching and scrapping during the follow-up deep-processing process, and requires no film removal of a side before lamination.

The invention relates to an optical device in particular to an optical filter structure, a preparation method thereof and a method for adjusting transmission characteristics thereof. The optical filter structure is formed by successively connecting a base layer, a control layer and a dielectric layer from bottom to top. Two rectangular metal nanometer blocks are embedded in the dielectric layer. The upper surfaces of the metal nanometer blocks are flush with the upper surface of the dielectric layer. The lower surfaces of the metal nanometer blocks are higher than the lower surface of the dielectric layer. The control layer is a VO2 film. The metal nanometer blocks are made of a precious metal material. The phase change of the control layer is achieved by controlling the ambient temperature of the optical filter structure, thereby changing the transmission characteristics of the optical filter structure, achieving broadband transmission, and adjusting the broadband transmission intensity and a local electric field enhanced position in the middle-infrared band. The optical filter structure is simple and convenient in preparation and use method and is easy to operate.

The invention provides a cement pipe internal anticorrosion method, anticorrosion paint and a preparation method of the anticorrosion paint. According to the cement pipe internal anticorrosion method, epoxy resin coats the inside of a cement pipe, so that the inner surface of the cement pipe can be effectively prevented from fluid corrosion and erosion. Meanwhile, the anticorrosion paint can be used in the cement pipe internal anticorrosion method; in the anticorrosion paint, nanometer zinc oxide is used as a filler and is compounded with pigments and fillers such as epoxy resin and titanium dioxide, and an auxiliary agent and a curing agent to be used, so that the anticorrosion paint has good anticorrosion performance; meanwhile, excellent impact resistant performance and good adhesion performance are also realized. Further, according to the preparation method, the anticorrosion paint ingredient is used as a raw material; the preparation method has the advantages that the operation steps are convenient and fast; the prepared anticorrosion paint has excellent performance; the use effect is good, and the like.

The invention relates to white microlite comprising the following components by weight: 30-40 parts of silicon dioxide; 6-10 parts of aluminum oxide; 10-15 parts of calcium oxide; 3-5 parts of zinc oxide; 4-6 parts of boron oxide; 4-6 parts of barium oxide; 0.3-0.7 part of potassium oxide; 1-3 parts of sodium oxide; 0.5-1.5 parts of titanium oxide; and 0.5-1.5 parts of magnesium oxide. The white microlite is stable in color, bright in color, long in service life, low in cost, and convenient to manufacture, fills the species of pattern and color of existing microlite, is novel in pattern and unique in color, and greatly satisfy the demand of people for the microlite in living and production.

The invention relates to a hybrid emulsion, a water-based inorganic coating prepared from the hybrid emulsion and preparation methods of the hybrid emulsion and water-based inorganic coating. The water-based inorganic coating is mainly prepared from the following components in parts by weight: 40-70 parts of water, 0.4-20 parts of mixed monomers, 1-10 parts of potassium persulfate aqueous solution, 0.001-1 part of anionic emulsifier AS30, 0.001-1 part of tert-butyl hydroperoxide, 0.001-1 part of FF6M reducing agent, 1-10 parts of ethyl orthosilicate, 0.1-15 parts of gamma-glycidyl ether oxypropyltrimethoxysilane, and 0.1-5 parts of concentrated ammonia water. The defects that a paint film of an existing water-based inorganic coating for interior walls easily generates cracks, micropores and the like, and has the defects of poor scrubbing resistance, poor water resistance and the like. Organic-inorganic hybrid particles are used as main film forming substances, the organic matter part ensures that a formed film does not crack, and the introduction of the inorganic matter silicon dioxide endows the emulsion with the advantages of scrubbing resistance, water resistance, good storage stability and the like.

The invention discloses a tetracyclic terpene compound and a preparation method thereof. The structural formula of the compound is shown as a formula I. The preparation method comprises the following steps of: (1) reacting a compound shown as a formula 2 with an acrylic acid derivative in the presence of a chiral alkali; (2) performing a selective reduction reaction on the obtained product in the presence of a reducing agent and a heptahydrate of cerous chloride, and protecting hydroxyl; (3) performing a reduction reaction on the obtained product; (4) performing Swern oxidation on the obtained product, and performing a Wittig reaction in the presence of hexamethylphosphoric triamide; (5) performing an intra-molecular olefin metathesis reaction on the obtained product under the catalytic action of a Grubbs second generation catalyst to obtain spiro-olefin; and (6) performing a selective cyclopropanation reaction on the spiro-olefin and a diazo compound in the presence of a metal catalyst and a chiral ligand to obtain a compound shown as a formula 1. The method has the advantages of simple steps, mild reaction conditions, high yield, convenience for amplifying, convenience for deriving a product and high industrial production potential.

A four-stroke internal combustion engine (20) is provided. There is provided within an engine housing (28) an oil reservoir (126) and a valve chamber (156) which independently communicate with a crank chamber (124). A strategically placed divider (116) and passageway, located within the engine housing (28), appropriately direct lubricant within the engine housing (28) so that the internal cavity of the engine is lubricated during use in various operating attitudes, and so that the fluid flows to and is held in the proper chambers of the engine housing during storage. There is also provided a breather arrangement for an internal combustion engine (20) which includes a cam shaft (98) having a hollow passageway in communication with the crank chamber (124) and the air intake system of the engine. There is also provided an engine housing which can be utilized for engines having different horse power ratings. There is also provided a crankshaft bearing assembly (68, 70) which prevents damage to the bearing upon insertion of the crankshaft (80) into the crank chamber (124).

The invention discloses a welding structure of medium carbon tempering alloy steel and low alloy steel, which comprises the following parts: medium carbon tempering alloy steel element, low alloy steel element and welding joint, wherein the welding joint is filled with welding meat; one transition layer is set between the welding meat and the medium carbon tempering alloy steel and between the welding meat and low alloy steel separately. The invention has better mechanic property with fastened and reliable component, which is easy to realize to improve the component property greatly.

The invention discloses a water quality regulator and a preparation method thereof. The water quality regulator comprises components in parts by weight as follows: 32-45 parts of shell powder, 24-33 parts of tourmaline powder, 20-28 parts of argy wormwood leaf powder, 15-21 parts of pectinase, 12-20 parts of lotus leaf powder, 14-26 parts of calcium bicarbonate, 12-20 parts of sodium citrate and 16-22 parts of diatomite. The water quality regulator has simple composition, contains no harmful components, cannot cause secondary pollution, is convenient to use and has the better water quality improving effect; besides, the preparation method of the water quality regulator is simple, convenient and easy to master, popularize and use.

The invention discloses an oxidized composite additive for limestone wet flue gas desulfurization and a preparation method thereof. The oxidized composite additive is mainly made of the following raw materials in parts by weight: 65-95 parts of iodine aqueous solution, succinic acid 5‑15 parts, 5‑10 parts of disodium edetate, 3‑10 parts of iron sulfate, 10‑20 parts of calcium acetate monohydrate, 2‑10 parts of manganese acetate tetrahydrate. The oxidized composite additive prepared by the invention is added to the limestone slurry, which can accelerate the absorption of SO2 gas in the limestone slurry, improve the reactivity between limestone and SO2, and improve the removal efficiency of SO2. At the same time, the preparation method of the oxidized composite additive of the present invention is simple and convenient, does not require heating and pressurization, does not require production equipment, and can be directly added to limestone slurry, which saves costs and can be popularized and applied on a large scale.

The invention relates to the technical field of pavement bricks, and provides a preparation method of a composite layer pavement brick. The preparation method comprises the following steps: preparinga surface layer material by adopting a vacuum pressing method, preparing a bottom layer material by adopting a vacuum exhausting method, and connecting a bottom layer and a surface layer by adopting aconnecting layer containing gravels to increase the interface bonding force of the surface layer and the bottom layer and improve the bearing capacity of the composite layer pavement brick; and carrying out low-temperature curing treatment on the composite layer material to complete demolding, and then treating the surface of the surface layer by adopting a shot blasting treatment technology to form surfaces with different concavities and convexity. The preparation method is simple and excellent, the combination degree of the surface layer and the stratum can be improved, and it is guaranteedthat the surface layer material and the bottom layer material are not prone to falling off; and the contractibility of the material is reduced, so that the composite layer pavement brick material ishigh in bearing capacity, good in skid resistance, good in durability, low in overall manufacturing cost and suitable for wide application.