33results about How to "Process parameters are clear" patented technology

The invention discloses a welding method of a stainless steel thin plate, which is between an active tungsten electrode argon arc welding method and the conventional stainless steel welding method. In the method, a mixed gas of oxygen or carbon dioxide and argon is used an active protective gas; after a molten pool is formed, welding is performed according to the following set process parameters:the welding current I is 10<5> to 11<5>A, the welding speed v is 90 to 110mm.min<-1>, the arc length L is 3.5mm, and the active protective gas flow Q is 13L.min<-1>; and the length L of the welding joint of welding of each welding rod with a length L1 is controlled between 0.85L1 and L1. The stainless steel thin plate welding method is formed by selecting various groove machining and welding process parameters and repeatedly performing process tests, and avoids requiring use of active agent, allows grooves to be machined conveniently, makes process parameter definite, ensures process stability, allows the welding quality to meet batch-production requirements and allows products to meet set technical requirements on products.

The invention discloses a preparation method of a surface compaction plate. The preparation method comprises the following steps: (1) wood is processed into a plate with the thickness being 10-25mm, and is dried till the water ratio reaches 20-30wt%; (2) the dried plate is arranged between two compression rollers of a roller press for cross grain radial rolling, and the thickness compression ratio of the plate passing the compression rollers is controlled at 10-30%; (3) the plate after the rolling treatment is soaked in phenolic resin liquid for 1-10h; (4) the soaked plate is subjected to steam-injection softening treatment; and (5) the softened plate is arranged in a hot press for compression. According to the preparation method of the surface compaction plate, the produced plate is high in surface layer density and strength and is not prone to deform; a technology is simple, no treatment on man-made forest soft wood is required in a sealed container, and the production efficiency is high; processing parameters are definite and the operability is high; and the surface compaction plate is light in color, has excellent flame retardant and antibacterial properties, and can directly act as materials of furniture and interior decoration.

The invention relates to a method for recovering iron from zinc hydrometallurgy rotary kiln slag. The method comprises the steps of: primary ore grinding, weak magnetic rough separation, weak magnetic scavenging, secondary ore grinding and weak magnetic selection. The method is simple in process steps, can extract iron concentrates with the grade of higher than 58% from the rotary kiln slag, changes wastes into valuable materials, and realizes the resource regeneration.

The invention discloses a coccidian-expelling and dysentery-stopping mixture for livestock and a preparation method thereof. The coccidian-expelling and dysentery-stopping mixture for livestock is prepared from the following main materials in parts by weight: 400-550 parts of antifebrile dichroa, 300-500 parts of Chinese pulsatilla root, 500-600 parts of hairyvein agrimony, 300-500 parts of purslane and 260-400 parts of humifuse euphorbia herb. The preparation method of the coccidian-expelling and dysentery-stopping mixture for livestock comprises the following steps of: preprocessing antifebrile dichroa and Chinese pulsatilla root, then decocting other raw materials and auxiliary materials with the preprocessed antifebrile dichroa and Chinese pulsatilla root, and filtering. The coccidian-expelling and dysentery-stopping mixture for livestock has the advantages of simple and easy-to-control processing technology, high product bioavailability, good pharmaceutical effect, quick curative effect and low cost.

The invention discloses a preparation method of a compound danshen tablet in the technical field of medicine manufacturing. The invention is characterized by comprising the following steps: preparingthe following raw materials: a danshen medicinal material, a pseudo-ginseng medicinal material, borneol, corn starch, dextrin, microcrystalline cellulose and magnesium stearate; pre-treating the raw materials: pre-treating the danshen medicinal material, the pseudo-ginseng medicinal material and the borneol, and removing non-medicinal parts and impurities; and extracting the danshen medicinal material: extracting a concentrated solution from the danshen medicinal material to prepare danshen extractum. According to the invention, the loss of effective components in the extraction process can beeffectively avoided; after the danshen medicinal material is selected, cleaned, infiltrated and cut, the water content is detected, the feeding amount is controlled, and direct extraction is performed, so that the accuracy of the extraction feeding amount of the medicinal material is ensured, the drying procedure is reasonably avoided, the loss of effective components of the traditional Chinese medicinal material in the drying process is avoided, and the production cost is reduced.

The invention belongs to the field of traditional Chinese medicine, and particularly relates to a preparation method of herba pogostemonis decoction pieces. The preparation method comprises the following steps: taking a clean fresh herba pogostemonis medicinal material; air-drying the clean fresh herba pogostemonis medicinal material under the sunlight or in ventilation drying equipment with a temperature of 30 DEG C to 40 DEG C, continuously drying the clean fresh herba pogostemonis medicinal material for 5 to 7 hours; then under the coverage of a breathable cover, stacking and sweating for 16 to 17 hours; removing moisture on the surface of the herba pogostemonis medicinal material after sweating, cutting and drying to obtain herba pogostemonis decoction pieces. The preparation method isa new method obtained by carrying out optimization according to an existing production place processing and preparation method. The herba pogostemonis decoction pieces prepared by the method are similar in quality and medicine effect analysis with herba pogostemonis decoction piecess prepared by a method in the chinese pharmacopoeia, and accords with requirements of the chinese pharmacopoeia. Water decoction of the herba pogostemonis decoction pieces prepared by the method disclosed by the invention also has the anti-inflammatory activity.

The invention provides a preparation method of a pleurotus citrinopileatus beverage and belongs to the technical field of beverage preparation. The preparation method of the pleurotus citrinopileatus beverage comprises the steps of cleaning, beating, enzymolysis, mixing, sterilization and the like. Protease and cellulase are used for the enzymolysis of the pleurotus citrinopileatus, and nutrient substances in the pleurotus citrinopileatus are decomposed into micromolecular substances easily absorbed by a human body. The preparation method of the pleurotus citrinopileatus beverage is simple in technology, and the obtained pleurotus citrinopileatus beverage has a faint scent flavor, co-ordinated and soft taste, is sweet, sour and palatable, has a natural flavor of the pleurotus citrinopileatus and can better keep nutritional ingredients of the pleurotus citrinopileatus. The prepared pleurotus citrinopileatus beverage is rich in the nutritional ingredients such as amino acid, small peptide, microelement, mineral substance and polysaccharide and is easily enjoyed by people.