30results about How to "Meet the needs of high-end products" patented technology

The invention provides egg white powder with high foamability and a preparation method thereof and relates to reconstruction of whey protein structure and functional properties, belonging to the technical field of biological processing of foodstuffs. According to the invention, on the basis of preliminary work, enzymatic hydrolysis of lipase in advance and cooperative enzymatic hydrolysis of composite protease are utilized for treatment of egg white; total usage amount of lipase and composite protease is less than usage amount of individually used lipase or protease, and however, foamability and foam stability of egg white powder obtained by combined utilization of lipase and composite protease are higher than those of egg white powder obtained by individual utilization of lipase or composite protease; the egg white powder obtained in the invention can meet demands for high-grade products on the market, and the advantages of a simple process and high cost performance are achieved in the invention. According to the invention, the ratio of active usage amount of Aspergillus oryzae protease, papain and trypsin is determined to be 1:1:1; the usage amount and other technological parameters cooperatively allow egg white powder with high foamability to be obtained; egg white powder with high foamability provided in the invention enables the additional output value of eggs to be increased, lays a technical foundation for development and industrial production of special-purpose egg white powder products and increases economic benefits for enterprises.

The invention relates to a preparation method of titanium dioxide with high specific surface area. The preparation method comprises the following steps of: firstly dissolving titanium tetrachloride serving as raw material in deionized water; adding liquid ammonia and additives (polyvinyl alcohol, ethanolamine, citric acid and triol silane) for hydrolysis to generate gel; and then carrying out filter pressing, calcining, ball milling, screening, washing and drying, thus obtaining the titanium dioxide powder with high specific surface area. The preparation method of the titanium dioxide with high specific surface area is simple in technology and low in cost; the quality of the obtained titanium dioxide product is stable, and the specific surface area of the titanium dioxide is 25-35m<2>/g.

The invention belongs to the technical field of machine vision camera lenses and particularly relates to a machine vision camera lens with an 8mm fixed focus. The machine vision camera lens comprises a first lens with a concave-convex structure, a second lens with a double-concave structure, a third lens with a concave-convex structure, a fourth lens with a double-convex structure, a fifth lens with a double-convex structure, a sixth lens with a double-concave structure, a seventh lens with a concave-convex structure and an eighth lens with a double-convex structure, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens and the eighth lens are sequentially arranged in a way that the central shafts are coaxial along the light-incident direction; due to the combination of the eight lenses, the pixel value of the camera lens with the 8mm focus can be up to 5 megapixels when the size of a corresponding chip is 2/3', so that the high-end product demand is met; and meanwhile, the clear aperture is adjustable within the range of F2.5-F16. The machine vision camera lens with the 8mm fixed focus is compact in structure, convenient to assemble and capable of reducing the production cost.

The invention discloses an optical system provided with machine-vision camera lenses with large target areas. The optical system comprises a first lens G1 with positive focal power and a crescent structure, a second lens G2 with positive focal power and a crescent structure, a third lens G3 with negative focal power and a crescent structure, a fourth lens G4 with positive focal power and a double-convex structure, a fifth lens G5 with negative focal power and a crescent structure, a sixth lens G6 with negative focal power and a double-concave structure and a seventh lens G7 with positive focalpower and a double-convex structure from object spaces to image spaces. A relational expression of 0.8 |f1/f| 1.2 is met by the focal distance f of the optical system and the focal distance f1 of thefirst lens G1, and a relational expression of 2y/f 0.85 is met by a target area 2y of the optical system and the focal distance f. The optical system has the advantages that the optical system can bematched with linear-array cameras with the resolution higher than 8 k and the pixel sizes of 7 micrometers, and accordingly high-quality imaging with the wide working distances of 0.04X-0.33X can beimplemented.

The invention relates to a condensation cavity for a gas water heater, wherein the condensation cavity for the gas water heater comprises an upper cover, a cylinder body and a lower cover, wherein the upper cover is provided with a first folding edge; the cylinder body is provided with a second folding edge and a third folding edge; the lower cover is provided with a fourth folding edge; the first folding edge of the upper cover and the second folding edge of the cylinder body are tightly jointed together in a compression mode through a roller press; and the fourth folding edge of the lower cover and the third folding edge of the cylinder body are tightly jointed together in a compression mode through the roller press. Compared with the prior art, the condensation cavity for the gas water heater provided by the invention has the following beneficial effects: 1) the roller press is utilized for compression joint production, the production efficiency is improved by 4-5 times, and the single-batch output production capability can reach more than 600 units; 2) high-temperature silicon gel is not required for sealing, the condensation cavity for the gas water heater not only is environmentally-friendly, but also is clean, and has no foreign smell and pollution, the technology is simple, and the operation for workers is easy; 3) a rubber ring and high-temperature silicon gel are omitted, and hazards of aging, leakage, bursting and the like do not exist; 4) the product cost is lowered, and the product competitiveness is improved; and 5) the product appearance is improved greatly, and the requirements of higher-level products can be met. The invention also relates to a manufacturing technology of the condensation cavity for the gas water heater.

The invention discloses a control method for a high-carbon-chromium bearing steel carbide banded structure, and belongs to the field of bearing steel preparation. The method specifically comprises the following steps: obtaining a casting blank by adopting a crystallizer electromagnetic stirring and tail-section soft reduction process; the casting blank is placed in a heating furnace to be subjected to primary high-temperature diffusion; the casting blank is subjected to cogging rolling, a rolled intermediate blank is subjected to secondary high-temperature diffusion, during cogging rolling of the casting blank, the cogging process of the casting blank is controlled to be seven passes, the first three passes adopt a large reduction process, the reduction rate of the first pass is controlled to be 28-30%, the reduction rate of the second pass is controlled to be 22-24%, and the reduction rate of the third pass is controlled to be 26-28%; then the rolled intermediate billet is put into a heating furnace for secondary high-temperature diffusion; the heating temperature of the secondary high-temperature section is controlled to be 1170-1230 DEG C, the total heating time is controlled to be 200-280 min, and the time of the high-temperature section is 110-190 min; and then a continuous rolling mill is adopted for rolling, and the bearing steel with the carbide banded grade CZ7 smaller than or equal to 7.3 grade is obtained.

The invention relates to the technical field of optical lenses, and particularly relates to a 12mm prime machine visual lens comprising a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens of which the central axes are arranged on the same horizontal line. When object distance changes, air space from the ninth lens to an image plane changes, i.e. the first to the ninth lenses move forward and backward together, only optical back focal length changes and other space size does not change. With application of the aforementioned structure, the pixel value can reach five million pixels when the focal length is 12mm and the corresponding chip size is 2/3" so that the high-end product demand can be met, and optical transmission aperture can also be flexibly adjusted.

The invention relates to the technical field of optical lenses, and particularly relates to a 16mm prime machine visual lens comprising a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens and an eighth lens of which the central axes are arranged on the same horizontal line. When object distance changes, air space from the eighth lens to an image plane changes, i.e. the first to the eighth lenses move forward and backward together, only optical back focal length changes and other space size does not change. With application of the aforementioned structure, the pixel value can reach five million pixels when the focal length is 16mm and the corresponding chip size is 2/3" so that the high-end product demand can be met, and optical transmission aperture can also be flexibly adjusted.

A method for refining acrylic acid, the process gas of acrylic acid is quenched and absorbed by high-concentration gas, reabsorbed by low-concentration gas, purified, extracted and stripped, and the cooling process, absorption process and purification process of the acrylic acid gas phase mixture are coupled, and carried out Subsequent acid water treatment is improved, the present invention improves the absorption process, no entraining agent is used in the refining process, less waste water is produced, the purity of the obtained acrylic acid is over 99.7%, the process is simple, the equipment investment cost and operating cost are low, and the production cost is low. The refining method of the present invention is simple, has remarkable practicability and economic benefits, and the obtained product has high purity and is easy for large-scale industrial production.

The invention discloses a heart valve type screw rod which consists of structural elements of a screw rod mandrel (1), a threaded element (2), an elliptic blending block (3), a heart valve type kneading block (4), a tooth-shaped mixing disc (5), a back mixing helix (6) and the like, wherein an extrusion element is sleeved on the screw rod mandrel and is coupled with the screw rod mandrel in a spline manner. The pressure and the shearing force of the screw rod can be adjusted by changing or adjusting the combination modes of the extrusion elements according to characteristics of different materials, so as to achieve an expected dispersion effect.

The invention discloses a visual cap sealing system and a cap sealing method. The system comprises an image analysis device, a light path processing assembly, a light source, a convex lens and a target object. During cap sealing, a target object is fixed to the tube base, and the convex lens is fixed to the tube cap; the image analysis device obtains coordinates of the target object through the light path processing assembly and records the coordinates; the light source emits a test light path to the convex lens, and the position of the light source is adjusted to enable the test light path penetrating through the convex lens to form an emission lens light spot; a light spot center point of the convex lens is obtained and marked; the tube cap is directly faced to the tube seat according to the light spot center point of the convex lens and the coordinate of the target object, and then the cap sealing operation can be completed. According to the high-precision cap sealing scheme, a visual recognition scheme is adopted, the precision is high and can reach +/-10 microns, and the requirements of high-end products are completely met. According to the high-precision cap sealing scheme, the focal length can be adjusted, when different chip schemes are adopted, clear recognition is ensured by adjusting the focal length, and high precision is ensured.

The invention provides a method for improving exposure uniformity of a PCB (Printed Circuit Board). The method comprises the following steps of: obtaining a theoretical thickness value of the PCB; measuring the thickness of each grid on the PCB; the difference value of each grid is imported into a data model established by modeling software from top to bottom and from left to right, and is visually displayed by adopting different colors; mask plates are prepared, each mask plate comprises a light-transmitting area and a light-proof area, and the light-transmitting area of each mask plate is matched with the area corresponding to the single color; the mask plates are adopted to expose the PCB one by one, the focal length of the exposure machine is adjusted according to different colors corresponding to the mask plates, and the exposure machine projects light penetrating through the light-transmitting area to the PCB for pattern transfer. The plate thickness distribution diagram can express the plate thickness distribution of the plate surface and the region, so that focal length adjustment of regional exposure during exposure is guided, exposure energy received by the whole plate surface is consistent, the risk of local overexposure or exposure deficiency is avoided, and the problem of circuit open circuit or incomplete film removal caused by inconsistent exposure energy is solved.