136 results about "Domestic production" patented technology

The invention relates to a steel plate for a low-temperature vessel and a production method thereof, belonging to the technical fields of special steel plates and steel plate production methods. The steel plate for a low-temperature vessel is produced by smelting the following components in percentage by weight: no more than 0.12% of C, 0.15-0.50% of Si, 1.2-1.6% of Mn, 0.3-0.8% of Ni, no more than 0.010% of P, no more than 0.005% of S, 0.020-0.045% of Al, no more than 0.040% of Nb and the balance of Fe and inevitable impurities. The invention develops a new steel plate for a low-temperature vessel and a production method thereof. The favorable mechanical property of the steel plate is ensured under the condition of low noble alloy consumption, so that the steel plate has good organization, comprehensive property and weldability, the low-temperature impact toughness of the steel plate in a delivery state and a die welding state is improved, and the requirements of the market for high-quality steel for a low-temperature vessel are met, thus making positive contributions for domestic production of large engineering low-temperature equipment and achieving remarkable economic benefits.

The invention discloses a rubber softening agent and a preparation method thereof. The rubber softening agent comprises the following raw material in part by weight: 10 to 30 percent of asphalt and 70 to 90 percent of naphthenic oil. The preparation method comprises: heating the asphalt to 80 to 100 DEG C till the asphalt is molten; fully stirring the molten asphalt, and keeping the temperature between 80 and 100 DEG C constantly for 50 to 70 minutes; adding naphthenic oil according to a corresponding ratio, heating the mixture at a constant temperature to 100 to 120 DEG C for 40 to 60 minutes with full stirring; and cooling, storing at room temperature for 24 to 27 hours and producing the rubber softening agent. The nontoxic asphalt-modified rubber softening agent which used to lack in China does not reach safety standards of European Union, thereby saving cost of China's tire manufacturers considerably.

The invention relates to a sST2 detection kit based on microparticle chemiluminescence immunoassay, relating to a chemiluminescence detection kit. The sST2 detection kit is equipped with reaction buffer, magnetic microparticles coated with sST2 monoclonal antibody, sST2 monoclonal antibody labeled with acridinium ester, luminescent liquid, sST2 antigen standard solution, and concentrated washing liquid. Prepare reaction buffer; prepare magnetic particles coated with sST2 antibody; prepare acridinium ester-labeled sST2 antibody; prepare sST2 antigen standard solution; prepare luminescent liquid; prepare washing liquid. Using microparticle chemiluminescence immunoassay technology, it has higher sensitivity and better stability than ELISA, and fills the gap in the production of microparticle chemiluminescence diagnostic reagents for human serum sST2 detection in China. It has the advantages of simple operation, high sensitivity, wide linear range, stable results, good safety, and easy automation, and has broad application prospects in clinical testing and other aspects.

The invention provides a heat exchanger structure and particularly provides a heat exchanger structure for a fuel gas full pre-mixing condensation type wall-hung stove. A heat exchanger is the main component of the fuel gas full pre-mixing condensation type wall-hung stove and installed in the fuel gas full pre-mixing condensation type wall-hung stove. The heat exchanger is used for heating heating water. The heat exchanger is composed of a shell and an annular coiler group. The side face of the shell is provided with a water inlet and a water outlet, and a condensed water outlet is formed inthe bottom of the shell. An exhaust opening is formed in the back end cover. The annular coiler group is arranged in the shell and is provided with a plurality of spiral pipes, and the spiral pipes are coaxially connected in series to form a spiral entirety. Water flow in the spiral pipes are distributed through a communicating pipe, a confluence opening and a diversion opening. The gaps of the spiral pipes are kept through spacer sheets. Heat is fully absorbed, and the heat exchange efficiency can be guaranteed. The heat exchanger structure solves the problems of the prior art, and the heat exchanger structure is simple, convenient to produce and manufacture and capable of being manufactured by the adoption of existing domestic production equipment.

The invention discloses a six-shaft joint mechanical hand and relates to the industry mechanical hand technology. The six-shaft joint mechanical hand comprises a mechanical hand body and a control system; the mechanical hand body is connected with the control system through a data line; the mechanical hand body comprises a base, a first shaft servo motor and a speed reducer thereof, a first shaft rotary shaft, a second shaft base, a lower hand servo cylinder, a lower arm, an upper arm servo cylinder, an upper arm, a fourth shaft rotary shaft, a fifth shaft servo motor and a speed reducer thereof, a fifth shaft rotary base, a sixth shaft rotary shaft and a sixth shaft servo motor and a speed reducer thereof; the control system comprises a programmable controller, a movement control module, a servo driver, an alarming device, a hand box, a touch screen, a limit switch and a sensor. The six-shaft joint mechanical hand has the advantages of achieving six-shaft joint control through the control system, being simple in structure, achieving domestic production, reducing products, shortening the purchasing cycle, being suitable for small and medium businesses to use and high in positioning accuracy, improving the production quality and the production efficiency and having a good application prospect in the industry mechanical hand technology field.

The invention relates to a production process of wild jujube wine. The production process comprises the following steps: impurity removal, fruit inspection, cleaning, beating, enzymatic hydrolysis, screening, centrifugal separation, blending, yeast activation, low-temperature fermentation, low-temperature ageing, filtration and filling. According to the invention, the produced wild jujube wine has unique natural fruit flavor of the wild jujube, is rich in nutrient, shows light purplish red, is clear and transparent in wine body, has rich and pure fragrance of wild jujube, and is soft and delicate in taste. The wild jujube wine can be drunk after being chilled, and shows neat fruit fragrance, refreshing taste and enjoyable taste. In addition to the typical characteristics of fruit wine, the wild jujube wine further has unique health care function. According to the production process, the production technology is reliable, has the domestic advanced level, fills the gap of domestic production and processing technology of high-quality wild jujube products, is domestic initiative, and fully meets the needs of industrial production.

The invention discloses a dual compounding cryogen refrigeration system with a precooling function and a method. The temperature of purified natural gas is gradually decreased in four evaporators and two heat exchangers until that the purified natural gas is liquefied, the cold quantity required by the liquefaction process is provided by three systems, namely, a precoolant system, a mixing cryogen MR1 and a mixing cryogen MR2, system adjustment means are abundant so as that the cold quantity can be fully provided for the natural gas liquefaction process, and the flexibility of the system on the aspects of the operation and the adaptability to a raw material are shown. According to the refrigeration system and the method provided by the invention, the energy consumption during the natural gas liquefaction process is low, the domestic production for a large-scale liquification factory is free from the mode limitation by a main heat exchanger, the large-scale refrigeration compression can be realized, and an LNG (liquefied natural gas) device with ten millions tons can be realized to the greatest degree..

The invention discloses a method for coarsely extracting natural borneol from cinnamomum camphora. The method for coarsely extracting the natural borneol from the cinnamomum camphora includes steps that 1) smashing cinnamomum camphora branches and leaves, wherein the granule length is less than or equal to 10 centimeters after smashing; 2) adding the smashed cinnamomum camphora branches and leaves to an extracting tank, using high-pressure super-heated steam to directly act on the branches and leaves, controlling the temperature to guarantee the vaporization sublimation for the natural borneol in the cinnamomum camphora, and extracting for 35 to 40 minutes; 3) using a condenser to condense the gasified natural borneol, and gathering. The method for coarsely extracting the natural borneol from the cinnamomum camphora enables the extraction time to be shortened by a half, enables the yield to be improved by 10% and enables the energy consumption to be lowered by 65%, the waste water emission can be reduced by 99% through using steam, and the domestic production capacity technology is amplified by 20 times.

The invention provides a special production equipment of a numerical control grooved drum, which belongs to the technique field of numerical control milling machines, wherein, a sliding platform and a transmission mechanism are arranged on a frame, a grooved drum support and more than two sets of grooved drum motors and grooved drum jigs are disposed at the upper part of the sliding platform, a mounting rack is fixed at the middle and rear part of the frame, a jacking motor, a milling cutter motor mounting rack, a milling cutter motor and a milling cutter are arranged on the mounting rack, and the movement of the invention is controlled by a controller according to the edited program and the corresponding servo motor, and the invention has the advantages that: the production efficiency of the equipment is ten times higher than the existing equipment, but the price is only one eighth of that of the existing equipment, the lifetime of the metal grooved drum manufactured by the equipment is 8 to 10 years, the winding speed is 1300m/min, and the time of not-in-place at both ends is zero, and the invention can meet the requirements of domestic production as well as new situations of energy saving, consumption reduction and emission reduction, and enhance the competitive power of the national textile industry, and the equipment is used to manufacture various cone winding machines and parallel winding machines with different angles of taper.

The invention discloses lithium ion battery negative pole copper foil production equipment and method. PET films containing nanometer copper layers are unwound from an unwinding mechanism to enter anelectroplating tank B for electroplating to enter an electroplating tank C, are continuously electroplated by all stages of electroplating tanks D-I, are fed in a water washing tank for water washing,are dried in first drying equipment after water extrusion, are passivated in a passivating tank, are dried, and are finally wound by a winding mechanism. Ultrathin copper foils produced by the production equipment and method effectively reduce the weight of lithium ion batteries, provide light negative pole materials for realization of 300 Wh/kg power battery specific energy, meanwhile, solve thedefects of existing domestic technologies and equipment, and fill up the blank in domestic production field of ultrathin copper foils. In addition, the ultrathin electrolytic copper foil production method and equipment replace expensive and huge negative pole roller equipment in the electrolytic copper foil production, reduce the enterprise production cost, and are easier to operate and convenient for large-scale enterprise production.

The invention relates to a method for short-term production of isotropic superfine structure isostatic pressing formed graphite. The method comprises the following steps: crushing mixed coke, performing primary powder milling, blending materials, melting asphalt, kneading and cooling, performing secondary powder milling, bagging and vacuuming, performing isostatic pressing formation, performing primary roasting, performing high-pressure soaking, performing secondary roasting, and performing graphitization, wherein the step of melting asphalt refers to that high-temperature modified asphalt is adopted as an adhesive. The preparation procedures of the method are greatly shortened, the production period is shortened by 90 days when being compared with that of a conventional domestic production procedure, and a short-term process is achieved. Unique positive pressure roasting of a bogie hearth furnace is adopted for the primary roasting, the temperature uniformity of the positive pressure roasting is greatly improved when being compared with that of conventional negative pressure roasting of an annular furnace, the pass percentage of the primary roasting is as high as 99.5%, and meanwhile the yield of the primary roasting is up to 94% or greater.

The invention discloses a production method of a seal glue full-seal automatic production line used for construction, which mainly comprises the steps of: conveying materials, feeding materials, dispersing and mixing materials, cooling and reducing temperature, adding accessory ingredients, discharging byproducts, cushioning and storing, mixing with a color paste and split charging, and the like. The production method overcomes the defects of domestic production technique; and the full-automatic configuration software industrial control system is adopted in the production process for continuously producing the products under completely sealed state.

The invention discloses a constant speed control system of a concrete mixing and transporting vehicle. The constant speed control system comprises a constant speed controller connected with a motor by a power bus, a main control unit connected with the constant speed controller, an auxiliary control unit connected with the constant speed controller, a display unit for displaying an operation situation of the main control unit at the real time, a variable discharge pump electromagnet valve connected with the constant speed controller, a hydraulic drive unit controlled by the variable discharge pump electromagnet valve and a rotation speed sensor used for detecting the rotation speed of a stirring cylinder. The constant speed control system facilitates the domestic production of whole electronic devices of the concrete mixing and transporting vehicle in our country, the production cost of the constant speed electronic speed control system is reduced, simultaneously the uniformity of the concrete is ensured and the energy consumption is reduced.

The invention discloses an engineering strain expressing acid-resistant high-temperature alpha-amylase gene mutants. The engineering strain is obtained by introducing a recombinant vector expressing acid-resistant high-temperature alpha-amylase genes into bacillus licheniformis, and performing screening to obtain the engineering strain with improved acid-resistant high-temperature alpha-amylase expression level; the acid-resistant high-temperature alpha-amylase has an amino acid sequence as shown in sequence 2 in the sequence table. The engineering strain has stronger capability of producing acid-resistant high-temperature alpha-amylase than current domestic production strains, has a unique identification label, and is a bacillus licheniformis production strain of acid-resistant high-temperature alpha-amylase that has great production and application value.

The invention belongs to the technical field of slaughtering and segmentation, and relates to a livestock carcass leg-removing device. The device comprises a mounting frame, a feeding mechanism, a rotary frame, a segmentation mechanism, a carcass clamp, a limb clamping mechanism, a machine vision device and an upper computer. According to the invention, four limbs are segmented from a complete livestock carcass, and the cutting part is accurately scanned in a segmentation process, so that the device has the advantages of small cutting force and rapid and accurate segmentation, and meets integration requirements of a domestic production line. Therefore, efficiency of segmenting four limbs is improved, and meat loss in a segmentation process is reduced.