59results about How to "Beautiful craftsmanship" patented technology

The invention aims to provide a three-layer medical infusion bag. The three-layer medical infusion bag comprises a flat infusion bag body of a three-layer structure. The three-layer structure comprises an inner bag layer made of polyethylene material, a middle bag layer made of polypropylene and styrene-ethylene/ butylene-styrene segmented copolymer material and an outer bag layer which is a blended layer of polypropylene, carboxylated styrene-ethylene/ butylene-styrene segmented copolymer and anionic polymerization nylon nanocomposite. The barrier performance of the anionic polymerization nylon nanocomposite of the outer bag layer is excellent. Air inlet is not needed in the infusion process and medicine liquid can automatically flow and is completely drained through the design of the thickness and the width of the infusion bag body, and therefore the whole infusion bag is good in safety, barrier property and infusion performance. The invention further provides a manufacturing method of the three-layer medical infusion bag. One-time injection molding and air blowing are conducted through a three-die-head injection molding die, the whole process is simple and advanced, one-time forming is achieved, the method is suitable for production of the infusion bag, and the manufactured infusion bag meets the infusion requirement.

The invention provides a main device for wireless communication multi-network integration, an expansion device and a remote device, wherein the main device comprises an uplink main unit and a downlink main unit, wherein the downlink main unit is used for receiving main unit Internet access signals and mobile communication signals, respectively converting the main unit Internet access signals and the mobile communication signals into downlink network optical signals modulated by a first optical carrier and downlink optical signals modulated by a second optical carrier, carrying out wavelength division multiplexing on the downlink network optical signals and the downlink optical signals to form downlink multiplexing optical signals, and transmitting each path of downlink multiplexing optical signals to a downlink network element; and the uplink main unit is used for uplink multiplexing optical waves, decomposing the multiplexing optical waves into network optical signals modulated by the first optical carrier and uplink optical signals modulated by the second optical carrier, converting the network optical signals modulated by the first optical carrier into main unit Internet outputsignals and outputting the main unit Internet output signals through a network access interface, and converting uplink optical signals modulated by the second optical carrier into electric signals and outputting the electric signals through a radio frequency access interface. A distributed system is formed by adopting three devices so that multi-network signal fusion of Internet, mobile communication and the like is directly realized, and therefore, network operation stability and reliability are effectively enhanced.

The invention discloses a ship-building steel small-groove submerged-arc welding agent and a preparation method thereof. The ship-building steel small-groove submerged-arc welding agent comprises the following raw materials, by weight, of 15-28% of magnesite, 15-30% of white corundum, 10-25% of grammite, 10-20% of fluorite, 10-20% of rutile, 1-10% of manganese ores and 1-7% of silicon iron. The sum of the weight percentage of the components is 100%. The ship-building steel small-groove submerged-arc welding agent has low hygroscopicity; electric arc welding is stable; the slag detachability of the welding agent after welding is good; the appearance of a welded joint is attractive after forming; slag shells can automatic cock after welding; and no defects such as undercuts exist. The production efficiency is high, the comprehensive cost is low, the welding quality is good, and the welding agent is quite suitable for submerged arc welding under the condition of small grooves of ship-building steel.

The invention discloses an installation and construction method for a prefabricated cabin of a 110-kilovolt transformer substation. The installation and construction method specifically comprises thefollowing steps of equipment unpacking; equipment basic inspection; obstacle removal; equipment hoisting and installation; equipment adjustment, fastening and inspection; accessory installation; grounding installation; and electrical wiring installation. With the installation and construction method for a prefabricated cabin of a 110-kilovolt transformer substation adopted, the situation that collision damage occurs when the prefabricated cabin is hoisted is avoided, a set of complete operation process and operation procedures are provided, the construction quality is improved, the construction period is shortened, the overall stability and safety of construction are guaranteed. The installation and construction method is easy to popularize.

The invention relates to a large-diameter metal material welding mold and a welding method, which relate to the welding technology. In the field welding, the price for utilizing a diesel engine is high, the current is instable, and the welding quality is poor. The large-diameter metal material welding mold comprises an upper die and a lower die, wherein the upper die is provided with a molten powder cavity, an injection hole and an upper welding cavity, and the large-diameter metal material welding mold is characterized in that the top surface of the upper die is provided with a top cover, the bottom surface of the top cover is provided with a draught groove which is communicated with the molten powder cavity, one end of the draught groove is an ignition end, the other end is a fire guide end, the ignition end is exposed, the fire guide end is connected with the molten powder cavity, the top cover is provided with a vertical flue which is communicated with the draught groove, a flue port is provided with a filter net for preventing large particles from entering the flue, and a smoke removing device is arranged above the flue. By adopting the technical scheme, the electric energy is not needed, convenience in carrying can be realized, flexibility in field construction is realized, and the cost is low; moreover, the top of the mold is additionally provided with a smoke-dust processing device, so that dust splashing can be prevented from injuring operation personnel in the construction process, and the harm of the smoke on the human body can be reduced.

The present invention discloses a method and metal mold for casting radiator, and features that the mold consists of side board, bottom board, sprue, clamping metal sheet, adjustable spacing strip, screw bolt, etc. The casting process includes the steps of setting radiating fins inside the clamping metal sheets, locking the side boards with the screw bolts, pouring high temperature aluminum liquid, cooling, demolding, and eliminating clamping metal sheets. By means of altering and replacing different mold parts, radiators of different types and sizes may be produced.

The invention discloses a micro bi-directional multi-household paying-off device and relates to the technical field of distribution circuits. Braking trundles are installed at four corners of the bottom of a rack respectively. The two ends of a lower wire rotating shaft are installed at the lower side of the rack through bearings. A lower rotating hand wheel is installed at one side of the lower wire rotating shaft. The two ends of an upper wire rotating shaft are installed at the upper end of the rack through bearings. A plurality of upper rotating hand wheels are installed on the upper wire rotating shaft. The device saves time, labor and strength, improves the technology quality, and is simple, convenient to move and easy to master.

The invention discloses a construction method of a large power station grounding grid under rock geological conditions. The construction method includes the following steps: production of a vertical grounding electrode; mechanical drilling; installation of the vertical grounding electrode; proportioning, stirring and pouring of a resistance reducing agent; clay backfilling and tamping of the grounding electrode; connection between grounding buses and grounding buses, and connection between the grounding buses and the grounding electrode; connection and installation of a grounding module; corrosion prevention at welding places; and clay backfilling and tamping of the grounding buses. The construction method of the invention adopts an advanced grounding construction process, reasonably selects a product combination for reducing the resistance value, and has obvious resistance reduction effects on areas with difficult resistance reduction construction such as mountainous areas, areas withhigh soil rate and arid areas in North China; for the installation of the vertical grounding body, only the prepared grounding electrode and a physical resistance reducing agent need to be inserted and poured into holes after mechanical drilling, so that the construction method is simple and convenient; and the construction method combines the physical resistance reducing agent and the groundingmodule, and the vertical grounding body with high construction difficulty is replaced by a horizontal grounding body, so that the construction workload is effectively reduced, materials are saved, pollutions are reduced, and obvious economic efficiency is realized.

The invention provides a manufacturing process of an electric heating kneecap, and belongs to the technical field of electric heating products. The process comprises the following steps: knitting an initial knitted kneecap main body in a plane sheet shape by using a sheet knitting machine, and the first preset part, the second preset part and the third preset part on the initial knitted kneecap main body are of double-layer structures; bending a plurality of parts of the heating wire to form a preset shape, and implanting the heating wire into a first preset part; respectively implanting the power line assembly and the power supply module into the second preset part and the third preset part, and enabling the heating line to be electrically connected with the power supply module through the power line assembly; and sewing the initial knitted kneecap main body according to the long cylindrical structure to obtain the corresponding electric heating kneecap. According to the technical scheme, the technical problem that an existing electric heating kneecap is poor in wearing experience due to the fact that the existing electric heating kneecap only can adopt a bandage type sheet structure through heating of the heating sheet can be effectively solved.

The invention discloses a cable trench assembly which includes at least two cable trenches and a base plate assembly. The adjacent cable trenches are horizontally and detachably fixed together by means of butt joint sealing. The base plate assembly is detachably fixed to the ground or a mounting surface. The lower part of each cable trench is detachably fixed to the upper part of the base plate assembly by means of sealing and inserting. Each cable trench has a trench opening at the bottom. The upper middle part of the base plate assembly is disposed in the trench openings. The cable trench assembly of the invention is simple in structure, convenient to install and disassemble and easy to transport, and is installed by means of splicing on an installation site. The cable trench assembly can be used in renovation of old cable channels or old cable lines. The cable trench assembly can be directly used in a channel with unmovable equipment, and can be installed without moving the original equipment. Thus, time is saved. The cable trench assembly is inclusive. There is no need to reinstall the original cable and other lines.

The invention discloses a method for constructing a rectangular busbar for a generator outlet of a large substation, which specifically includes the following steps: 1) pay-off measurement, 2) insulator installation, 3) busbar machining, 4) busbar connection, 5) busbar installation, 6) inspection and power transmission. The generator outlet is connected by a rectangular busbar structure, has the advantages of large current carrying capacity, simple structure, convenient installation and maintenance and the like, has attractive appearance and simple structure, and helps to later operation and maintenance. It improves construction efficiency to machine the busbar with the method.

A preparation method of goat milk synthetic soap is disclosed. The invention provides a preparation technology for preparing goat milk synthetic soap by using goat milk as the main raw material. goatmilk, caustic soda powder and mixed plant oils which are used as raw materials successively undergo steps of goat milk concentration, goat milk hydrolysis, plant oils mixing, oil-milk mixing, productmoulding and the like, so as to prepare the goat milk synthetic soap product. The technology is simple and easy to realize; machining production efficiency is high; production cost is low; and the prepared product has beautiful appearance, uniform texture, long preservation time and long service time.

The invention relates to the technical field of coatings, in particular to a preparation method of a magnesium oxychloride cement coating for exterior walls. The method comprises steps as follows: evenly mixing light-burned powder, fly ash or silica fume, straw or sawdust as well as a sand and soil mixture in the mass ratio of 100:(5-20):(10-70):(20-110) to form a base material; adding a magnesium chloride aqueous solution with the mass percent ranging from 20 to 25 to the base material, and evenly mixing the mixture to form the coating for coating the exterior walls, wherein the mass ratio of the light-burned powder to the magnesium chloride aqueous solution is in a range of 1:(1-2.6). The coating for the exterior walls is good in fireproof performance, good in cold resistance, simple in process, convenient to construct and operate, low in cost and quite suitable for popularization and application in northwest regions and has a certain thermal insulation effect.

The invention provides a ceramic vessel and a preparation process thereof. The inner part of the ceramic vessel is a porcelain liner which is made from a porcelain material while the outer part of the ceramic vessel is a ceramic jacket which is made from a ceramic material. The protein material consists of 93-97 parts of kaolin and 3-7 parts of water in parts by weight and the ceramic material consists of 80-90 parts of yellow river bottom mud, 7-13 parts of fine sands and 3-7 parts of water in parts by weight. The preparation method is unique and pottery and porcelain are skillfully combined, and moreover, the obtained ceramic vessel is free from cracking. The inner protein and the outer ceramic of the obtained ceramic vessel are tightly attached by virtue of arrangement of special ceramic material, protein material and shrinkage ratio, so that the ceramic vessel is attractive in craft.