77results about How to "Meet the requirements of the use environment" patented technology

The invention introduces a resistance brazing welding method for a titanium aluminum alloy turbine and a steel shaft. The method is characterized by comprising the following steps of: adding brazing filler metal between an aluminum turbine and the steel shaft; melting the brazing filler metal by utilizing resistance heat; applying upsetting force; unloading components after keeping for a period of time; and performing distressing and annealing on the components to obtain a combined part of the turbine and the steel shaft. In the resistance brazing welding method for the titanium aluminum alloy turbine and the steel shaft, the temperature on the overall surface can be more uniform by a connection method for heating by utilizing resistance heat; joint tissues and performance uniformity are good after welding, so that the weld seam strength is higher than that in common brazing welding and can reach 190 MPa; and simultaneously, the production efficiency is higher and batch production is easier to realize. A weld assembly obtained by adopting the method meets the requirement on use environment of a turbocharger.

The invention relates to an interface mortar for a steel structure outer wall with an anticorrosive coating layer. The interface mortar comprises, by weight, 200-700 parts of cement, 200-800 parts ofsands, 30-120 parts of redispersible latex powder, 0.3-3.0 parts of a water repellent, 0.1-2.0 parts of a defoaming agent and 0.2-2.5 parts of cellulose ether. The interface mortar can effectively ensure the adhesion with the surface of a steel structure base layer with the anticorrosive coating layer, and has good bonded performance with a thermal insulation mortar, a bonding mortar, a plasteringmortar, a waterproof mortar and other mortars. Compared with traditional interface mortars for concrete and the masonry base layer, the interface mortar in the invention has the advantages of good affinity with the surface of the steel structure with the anticorrosive coating layer, high tensile bond strength, good bonded performance, small decrease of the tensile bond strength after water immersion, freeze-thawing and heat treatment, good durability, and meeting of the requirements of the use environment of the steel structure exterior wall with the anticorrosive coating layer.

The invention discloses an epoxy resin pouring dry type transformer for an electric locomotive. The transformer comprises an iron core which is formed by connecting of a plurality of core limbs which are arranged transversely, a secondary coil and a primary coil are arranged on each core limb from interior to exterior in sequence, and an air flue is formed between each secondary coil and each primary coil. The cross sections of the core limbs, the secondary coils and the primary coils are of a rectangular shape, each air flue comprises a transverse air flue and a longitudinal air flue communicated with the transverse air flue, the width of each transverse air flue is formed by the transverse distance between each secondary coil and each primary coil, the width of each longitudinal air flue is formed by the longitudinal distance between each secondary coil and each primary coil, and the width of each longitudinal air flue is larger than that of each transverse air flue. The epoxy resin pouring dry type transformer is small in size and light in weight, can satisfy impedance requirements, has good waterproof effect, and can sufficiently cope with all kinds of special operating environments encountered in the process of operating of the epoxy resin pouring dry type transformer for the electric locomotive.

The invention provides a graphite substrate and a manufacture method thereof, an LED module and a manufacture method thereof; the graphite substrate comprises a flexible graphite flake; a metal layer is arranged above the graphite flake; a radiation layer is arranged below the graphite flake; the graphite flake is provided with a plurality of through holes penetrating the top surface and the bottom surface of the graphite flake; the graphite flake is connected with the metal layer through a bonding glue filling the through holes, and the bonding glue directly connects the top surface of the graphite flake with the bottom surface of the metal layer; the graphite flake manufacture method comprises the following steps: arranging the plurality of through holes on the flexible graphite flake, wherein each through hole penetrates the top surface and the bottom surface of the graphite flake; placing a bonding sheet above the graphite flake, placing the metal layer above the bonding sheet, heating the bonding sheet so as to melt the bonding sheet, thus forming the bonding glue filling the through holes; solidifying the bonding glue. The graphite flake directly makes contact with the bonding glue; the heat generated by the LED chip can be fast transferred to the graphite flake, thus realizing fast radiation of the LED module.

The invention provides a flexible peristaltic pump. The flexible peristaltic pump comprises a pump unit, a fixing unit and a connecting unit, wherein the pump unit is of a bag shaped structure manufactured through a driving film, comprising at least one opening channel through which liquid can flow in and out; a film prepared from an intelligent soft material can be externally excited to expand and contract under the eigenstrain so as to generate driving power for the peristaltic pump to pump in and pump out the liquid; the fixing unit is of a rigid structure and used for supporting the pump unit and the connecting unit, wherein the connecting unit is of a flexible structure for connecting the pump unit into a chain so as to ensure the flexibility characteristic of the whole peristaltic pump; an automatic valve is arranged in the connecting unit to control liquid to flow in and out; the fixing unit is used for supporting the pump unit. According to the flexible peristaltic pump, the driving film material and the special structure enable further simplifying of the peristaltic pump structure, so that the stability, reliability, efficiency and economy of the peristaltic pump can be improved, and the working noise can be reduced. The flexible peristaltic pump can be widely applied to the fields of chemical engineering, mining and metallurgy, paper-making, paint coatings, foods, ceramics, petroleum, water treatment, medicine preparation, and medical apparatuses and instruments in the future, and particularly plays an important role in artificial organ.

The invention provides a pipeline dredging machine. The pipeline dredging machine comprises a water pipe; a spraying head is connected with a water pipe; the spraying head comprises a shaft part and a spraying head side wall, wherein the shaft part is connected with the water pipe, and the spraying head side wall is arranged out of the shaft part and is provided with a hollow cylindrical shape; a rear spraying hole is formed in the shaft part of the spraying head and is used for pushing the spraying head to move forward; a side spraying hole is formed in the side wall of the spraying head and is used for cleaning, and the axis of the side spraying hole is perpendicular to the axis of the rear spraying hole; and a drilling bit capable of rotating is arranged on the forefront of the spraying head and plays a role in cutting a blocking body. According to the provided pipeline dredging machine, aiming at natural deposition dredging of a buried pipeline of an outdoor railway tunnel, calcium carbonate and silt precipitated by the natural environment can be effectively dredged, the maximum dredging length of the pipeline dredging machine is up to 50 m, and the pipeline dredging machine can pass smoothly at the corners not exceeding 90 degrees; appearance design of the pipe dredging machine conforms to requirements of the tunnel using environment, and stable working of the equipment can be ensured.

The invention relates to ultrasonic welding equipment for a porous sound attenuation air inlet tube of a non-woven fabric helical air filter. The equipment comprises an electric control box, a winding rotating device, a feeding traveling device and a sizing device which are all arranged on a machine frame; the feeding traveling device is connected with a non-woven fabric roll and a nylon yarn roll; the winding rotating device is controlled by the electric control box to rotate; the feeding traveling device is controlled by the electric control box to travel along the direction of the winding rotating device and feeds non-woven fabric strips and nylon yarns into the winding rotating device to rotate and wind the non-woven fabric strips and the nylon yarns from inside to outside; and the sizing device is used for synchronously sizing the non-woven fabric strips wound on the winding rotating device. The non-woven fabric strips and the hard nylon yarns are adopted to be uniformly and slantingly wound on a core rod at intervals and are sized, adhered and formed in a matched mode. The ultrasonic welding equipment has a simple and compact structure, is convenient to operate, and has simple processes and a short forming period. The requirement on a certain rigidity required when an automobile engine and the air filter need to be randomly bent in the abutting process under different assembly working conditions can be met. The ultrasonic welding equipment has a long service life, can be recycled and has no waste pollution.

The invention discloses a method for manufacturing a flexible joint of a submarine cable capable of satisfying the requirements of high-voltage and ultrahigh-voltage use situations. The method comprises the steps as follows: 1) conductor connection; 2) conductor shield and vulcanization; 3) insulation extrusion; 4) insulation vulcanization; 5) insulation shield and repair; and 6) metal sheath recovery, wherein the insulation vulcanization process is that an insulated cable is put into a vulcanizing mould, nitrogen gas filled into the vulcanizing mould during the vulcanization cannot leak, cooling water systems at the two ends of the vulcanizing mould are simultaneously kept unblocked, so as to keep the temperature at the two ends of the cable below 70 DEG C; when the temperature reaches 235 to 245 DEG C and the nitrogen gas pressure is 1.5Mpa, insulation vulcanization begins, and the temperature and the pressure are regulated through a valve and a power source; and after the vulcanization is conducted for 120 minutes, the power source is cut off, the temperature is reduced below 100 DEG C while the pressure is kept at1.5Mpa, gas is discharged to release the pressure, and when the pressure is zero, the vulcanizing mould is opened and the cable is taken out. When the cable produced by adopting the manufacturing method disclosed by the invention is used as the submarine cable in high-voltage and ultrahigh-voltage situations, the performance of the cable is excellent and the requirements of the use environments are satisfied.

The invention discloses a beryllium mirror surface layer based on amorphous alloy and a preparation method thereof. The problems that in the prior, during beryllium mirror surface processing, the technology processes are long, and the cost is high are solved. According to the preparation method of the beryllium mirror surface layer based on amorphous alloy, under the pressure condition, the amorphous alloy is heated to a supercooling liquid phase temperature region, the amorphous alloy is subjected to thermoplastic forming, micro holes in beryllium mirror blanks are filled with the amorphous alloy, and then the beryllium mirror surface layer based on the amorphous alloy is obtained. The invention further discloses the beryllium mirror surface layer prepared by adopting the method. The beryllium mirror surface layer is scientific in design, simple in technology, high in controllability, low in production cost and environmentally friendly.

The invention provides a hydraulic conveying jack with adjustable base supports. The hydraulic conveying jack comprises a hydraulic part base, a hydraulic part installed on the hydraulic part base andthree or more arc base supports evenly installed on the outer side of the hydraulic part base. Universal wheels are installed at the ends, away from the hydraulic part base, of the base supports. Theends, connected with the hydraulic part base, of the base supports are of up-down double-layer structures with U-shaped openings laterally formed. Connecting protruding blocks matched with the U-shaped openings are arranged on the hydraulic part base, and the connecting protruding blocks stretch in the U-shaped openings and are connected with the U-shaped openings through pin shaft assemblies. Upper-layer fixing holes and lower-layer fixing holes are formed in the base supports, and a limiting hole is formed in the hydraulic part base. The center lines of the upper-layer fixing holes, the lower-layer fixing holes and the limiting hole are located on the same cylinder face with the axes of the pin shaft assemblies as the rotating centers. Fixing parts used for fixing the state of the basesupports are further included. The base supports are simple in structure, the state is easy to adjust during use, and the requirements of different use environments can be met.