104results about How to "Uniform and fine tissue" patented technology

The invention discloses a silver copper oxide/copper composite electrical contact material and a preparation process thereof. The process comprises the following steps: mixing silver and copper according to certain proportions, and then, smelting the mixture in an intermediate frequency furnace; then, carrying out alloy atomization by using high pressure water atomizing equipment; baking after atomization to obtain powder; screening; putting the screened powder into an internal oxidization furnace for oxidizing at certain temperature and oxygen pressure; carrying out isostatic cool pressing after oxidization to form a billet; sintering and extruding to form a plate; and then, carrying out composite rolling with copper to obtain a finished product. Because the formula and process disclosed by the invention are reasonable, the produced electrical contact has the characteristics of high conductivity, uniform and fine tissue, high bonding strength between a working layer and a welding layer, fusion welding resistance, electrical arc erosion resistance and the like.

The high-strength superhigh-carbon steel has the alloy components including C 1.0-2.0 wt%, Cr 0.5-2.0 wt%, Mn 0.2-0.8 wt%, Si or Al and Fe (the balance). The production process includes selection of proper additive elements, spray moulding to obtain blank; great deformation amount hot rolling, and cooling to obtain material with about 1000 MPa yield strength, about 1300 MPa tensile strength and 8-11 % percentage elongation and no need of quenching and tempering. The spray molded blank has fine structure and excellent high temperature deformation capacity and this makes it possible to perform great deformation amount hot rolling to result in high-strength superhigh-carbon steel with compact and fine structure. The process is simple, efficient, and has low power consumption and low production cost.

The invention discloses a high strength and toughness steel used for a ring chain, wherein, the chemical elementary compositions based on weight percentage are as follows: C: 0.20 to 0.26 percent, Mn: 1.10 to 1.40 percent, Ni: 0.85 to 1.15 percent, Cr: 0.40 to 0.60 percent, Mo: 0.40 to 0.60 percent, V: 0.03 to 0.10 percent, Al: 0.020 to 0.050 percent, Si: less than or equal to 0.25 percent, Cu: less than or equal to 0.25 percent, S: less than or equal to 0.020 percent, P: less than or equal to 0.020percent, and Fe and inevitable impurity as the rest. According to general arc melting, refining technology and given alloy elements ratio, the invention uses continuous casting techniques to produce casting billets. The average casting temperature is 1150 to 1200 DEG C, beginning temperature of rolling is 1130 to 1180 DEG C, and final temperature of rolling is 760 to 800 DEG C; after being rolled, the billets are cooled in water and air; Then the hot rolled steel bars are annealed at 680 to 710 DEG C for 8 to 12 hours, and the tapping temperature is less than or equal to 250 DEG C, and then cooled in air, and wind is avoided. Therefore, the high strength and toughness ring chain steel forms into spherical pearlite, and has high cleanliness, uniform and fine structure, uniform and moderate hardness and excellent comprehensive mechanical properties after heat treatment.

The invention relates to a compound extrusion preparation method of a large-diameter high-quality tube blank or an annular blank. The compound extrusion preparation method is mainly aimed at materials which are large in deformation resistance, narrow in heat processing temperature range, difficult in heat processing, and difficult to deform. The compound extrusion preparation method comprises the following steps: (1) a high-quality ingot blank with high purity is prepared through a vacuum melting process; (2) homogenization treatment is carried out alternatively, multi-pass pier drawing fast forging cogging-down is carried out, an organization is refined, and the homogeneity of the organization is improved; (3) hollow blank material is prefabricated in a punch mode; (4) isothermality/heat molding compound extrusion is carried out on the prefabricated hollow blank material, the tube blank with the uniform and thin organization is prepared; and (5) subsequent machining is carried out, and a finished tube (ring) and the high-quality ingot blank are obtained. The novel preparation method is used for preparing the large-diameter tube (ring) blank with the uniform and thin organization. The preparation method is labor-saving in shaping, energy-saving, high in material utilization rate, high in product quality, and capable of resolving the problems that a tube (ring) blank prepared through a traditional process is thick in organization, poor in uniformity, large in shaping force and the like.

The invention discloses a fruit-flavored bread and its preparation method, taking fruit fermentation liquor as flavoring agent and yeast supplement, falling into the technical field of food processing. The method includes sorting fruits, washing, pulping, sterilizing, inoculating aroma-producing yeast, and fermenting to give fruit fermentation liquor; adding partial flour into the fermentation liquor, standing and fermenting to give fermenting agent; adding the rest of flour, salt, sugar, dry yeast, milk powder and water, mixing, adding oil/fat to make into dough, fermenting, cutting, rounding, relaxing, shaping, fermenting, baking and cooling. The obtained bread has deep surface color with slight variation depending on fruit type, large specific volume, high-grade interior color, fine and uniform structure, flexible and elastic mouth feeling, unique and strong fermentation aroma and slight fruit fragrance, and unique flavor.

The invention provides functional Ziyu Chinese yam and fruit composite juice and a preparation method thereof, belonging to the technical field of fruit juice processing. The composite juice is prepared from the following raw materials in parts by weight: 20-35 parts of Ziyu Chinese yam, 8-15 parts of red pitaya pulp, 10-18 parts of mulberry fruits, 8-15 parts of red beans, 12-20 parts of color fixative, 2-5 parts of stabilizer, 15-50 parts of sweetening agent, 2-8 parts of acidity agent, 0.2-0.3 part of alpha-amylase, 0.2-0.4 part of glucoamylase, 0.15-0.25 part of cellulase, 0.15-0.25 part of protease, 0.02-0.03 part of pectase and 360-650 parts of water. The fruit juice has efficacy of nourishing yin, supplementing blood, tonifying spleen, nourishing stomach, maintaining beauty and keeping young. With the adoption of the preparation method, nutrition and fragrance of each component can be well kept. A purple color can be kept due to the addition of the suitable color fixative. In addition, the produced beverage is uniform, fine and smooth in texture, and is sour, sweet and delicious in taste without precipitation.

The invention discloses a fruit enzyme cake. The fruit enzyme cake is mainly prepared from, by weight, 300-500 parts of eggs, 0.5-1 part of fruit enzyme powder, 0.5 part of an enzymic preparation, 100-200 parts of vegetable oil, 1-3 parts of active dry yeast, 250-350 parts of wheat flour, 150-250 parts of sugar, 10-20 parts of corn starch, 10-30 parts of cake oil, 1-2 parts of baking powder, 1.5-2.5 parts of sodium bicarbonate, 0.5-1 part of xanthan gum, 0.5-1 part of citric acid and 10-30 parts of warm water. By the adoption of the technical scheme, the fruit enzyme powder is added into the fruit enzyme cake and is an enzyme in essence to have the catalysis effect, fast fermentation of the active dry yeast is catalyzed by the fruit enzyme powder and the enzymic preparation to generate the fruit enzyme cake with the surface mouthfeel like that of bread, and the fruit enzyme cake is unique in flavor and convenient to manufacture.

The invention discloses a material for laser cladding of a titanium alloy surface and a laser cladding method, and belongs to the field of a material surface strengthening technology. The material for the laser cladding of the titanium alloy surface is formed by mixing the components by mass percent: 63-86% of Fe3Al powder and 14-37% of Tic-TiB2 ceramic hard phase powder. Through cladding Fe3Al and TiC-TiB2 ceramic hard phase on the titanium alloy surface by laser, the titanium alloy surface strengthened coat with significantly improved hardness and wearing resistance can be obtained, and the production cost can be reduced by 30% to 40%.

The invention discloses lactobacillus plantarum P _ 17 and a method for preparing fermented apple juice by using the lactobacillus plantarum P _ 17. According to the method, apple juice is used as a raw material, and lactobacillus plantarum P _ 17 with the preservation number of CGMCC NO.19251 is used for fermentation, so that the product is prepared. The lactobacillus plantarum P _ 17 has outstanding acid resistance, sugar resistance and low temperature resistance, has strong pepsase resistance and acid resistance, can resist an artificial intestinal juice stress environment, and has bile salt resistance and high osmotic pressure resistance. The fermented apple juice is uniform and consistent in color and luster and uniform and fine in texture, and has unique aroma and apple aroma of fermentation. The viable count of the fermented apple juice prepared by the method is higher than that of other bacteria, and the gamma-aminobutyric acid, the total acid and the antioxidant value are obviously improved compared with those of common apple juice. The method is simple in production process and rich and easily available in raw materials, and has far-reaching significance in industrial production of the fruit and vegetable juice lactic acid fermented beverage.

The invention discloses portable full nutritional yoghurt for spaceflight, a yoghurt sheet, and a preparation method thereof. The yoghurt comprises proteins originated from plants and animals, multiple plant oils, carbohydrates, vitamins, mineral substances, spirulina, wheat dietary fiber, coenzyme Q10, and xylo-oligosaccharide. The portable full nutritional yoghourt is prepared by the following steps: (1) mixing skim milk and a plurality of saccharides, homogenizing, sterilizing, carrying out enzymatic hydrolysis by using lactase, and cooling; (2) carrying out inoculated fermentation to obtain yoghurt; and (3) evenly mixing the yoghurt with other plant oils, proteins, carbohydrates, vitamins, and mineral substances, homogenizing, pre-freezing, freeze-drying, and sieving to obtain the portable full nutritional yoghurt. The portable full nutritional yoghourt is mixed with D-sorbitol, maltitol, and pre-gelatinized starch, the mixture is pressed into tablets, and finally the tablets are coated to obtain yoghurt sheets. Compared with the common low temperature yoghurt, the provided portable full nutritional yoghurt has the advantages of long shelf life, portability, suitability for spaceflight, full nutrients, low lactose content, and multiple flavors, and can promote the health.

The invention discloses a manufacturing method for a silicon-contained aluminum alloy welding wire rod for spaceflight, and relates to a manufacturing method for a welding wire rod. The manufacturingmethod aims to solve the problem that gas holes, slag inclusion and cracks easily occur in the welding process due to the fact that an existing silicon-aluminum alloy welding wire is poor in internalstructure. The manufacturing method comprises the steps of 1, carrying out smelting,2, carrying out casting, 3, carrying out saw cutting, 4, carrying out turning on an oxidation skin, 5, carrying outpreheating; 6, carrying out extruding; 7, carrying out annealing; 8, carrying out primary stretching; 9, carrying out intermediate annealing; and 10, carrying out second stretching so as to obtain thesilicon-contained aluminum alloy welding wire rod for spaceflight. The silicon-contained aluminum alloy welding wire rod manufacture through the manufacturing method has the advantages of being uniform in structure and free of coarse grains. The manufacturing method is mainly used for preparing the silicon-contained aluminum alloy welding wire rod for spaceflight.

The invention relates to a process method for vibration casting molding of lost foam casting. The process method comprises high-frequency vibration mold filling, high-frequency vibration crystallization, low-frequency vibration crystallization and annealing. By adopting the process method, the compactness of an internal structure of a lost foam casting product can be improved, and fatal defects that the surface structure compactness is generated in lost foam casting and internal structure crystalline grains are coarse can be overcome; and meanwhile, the unqualified rate of castings can be reduced, the enterprise cost can be reduced, and the economic benefits can be improved.

The invention discloses pastry emulsifying paste which comprises the following components in parts by weight: 10-30 parts of polyglycerol fatty acid ester, 2-10 parts of sucrose fatty acid ester, 2-10parts of sodium stearoyl lactylate, 0.1-1 part of potassium stearate, 5-12 parts of glycerol and 1-5 parts of ethanol. The pastry emulsifying paste system disclosed by the invention does not containpropylene glycol, so that the risk that the content of propylene glycol in cake products exceeds the standard is avoided, and the safety, the health and the use convenience of the pastry emulsifying paste are improved; the pastry emulsifying paste system does not contain a polymorphic emulsifying agent, so that the use performance is very stable within the quality guarantee period, and the performance reduction and even failure of the emulsifying paste due to the change of the crystal form are avoided; the pastry emulsifying paste has excellent foamability, foam persistence, moisture retentionand aging resistance, and a prepared cake product is high in expansion degree, uniform and fine in texture, soft, moist and elastic in taste and not prone to aging.

The invention relates to an application of cottonseed oil to a sponge cake and belongs to the field of food processing. The sponge cake is made by the following processing steps of fully agitating soft sugar, cake emulsifying agents and eggs in a stirrer to be white, adding sieved flour, salt and baking powders, continuing agitating the mixture to be pasty, pouring the cottonseed oil into the mixture, stirring the mixture to be uniform, and pouring the cake paste into a mold for baking to obtain the sponge cake. According to the application of the cottonseed oil to the sponge cake, cottonseed oil resources are fully used, trans-fatty acid contents in the cake are obviously reduced, and simultaneously, qualities of the cake are obviously improved so that the obtained cake is large in size, delicate and uniform in structure, spongy and soft and tastes wet.

The invention discloses a method for processing a portulaca oleracea health care beverage and belongs to the field of beverage processing. The method is characterized by comprising the steps of material selection and cleaning, precooking and conversion, pulping and glue milling, mixing, homogenizing, filling, sealing and sterilization, cooling and packaging and finished product warehousing. The method has the advantages that the product is fine and uniform in texture, coordinated and soft in taste, moderate in sweetness and acidity, sweet, fragrant and delicious, and has specific faint scent flavor of portulaca oleracea; the product is rich in various nutrient substances and favorable for enhancing human immunity functions, can clear heat, promote diuresis and remove toxicity for detumescence and have effects of lowering and stabilizing blood pressure and preventing heart disease and is a health care beverage which is rich in nutrition and economical.

The invention discloses a method for refining a hot-dipping coating material by employing laser heat treatment. The method comprises the following steps: preparing the hot-dipping coating material on the surface of an apparatus; carrying out laser remelting treatment on the coating material surface by the heat action of the laser to melt alloy on the coating surface; refining crystalline grains of hot-dipping coating alloy through quick cooling, wherein when the laser remelting treatment is performed on the hot-dipping coating material, the laser power for laser remelting selection is 1.0-2.0kw; the laser beam scanning speed is 10-20mm/s; and the diameters of light spots are 1-3mm. The crystalline grains of the coating are refined by a laser remelting method to improve the surface property of the coating material. According to the technology, the surface quality of the coating material can be effectively improved; the application range can be expanded; and the requirements of industrial production can be met.