46results about How to "Solve repair problems" patented technology

The invention relates to a structure type impeller breaker, comprising a rotor; the structure type impeller breaker is characterized in that: the rotor comprises a bottom plate (1), a ring-shaped top plate (2), a material dividing cone (3) and a plurality of connection plates (4); the material dividing cone (3) is fixed on the bottom plate (1) by a fastening piece, the connection plates (4) are arranged between the bottom plate (1) and the ring-shaped top plate (2), and a material blowing opening (5) is formed between the adjacent connection plates (4); a discharging outlet protecting ring (6) is arranged at the center of the ring-shaped top plate (2), an upper protecting ring (7) is welded at the outer ring of the ring-shaped top plate (2), a lower protecting ring (8) is welded at the outer ring of the bottom plate (1), and a wear resistant material layer is arranged on the outer surface of the connection plate (4); a replaceable injection orifice lining plate (9) is arranged at the same sides of all material blowing openings (5), and an upper padding plate (13) and a lower padding plate (14) are respectively welded on the upper and lower surfaces of the material blowing opening (5). The structure type impeller breaker radically solves the difficult problem that a rotor wear-out part is hard to be used repeatedly after being worn out, a great amount of raw material can be saved and the cost is reduced.

The invention relates to an intelligent test device for medium and low frequency circuits and a test method therefor. The test device comprises a universal test adapter for mating with an electronic device to be tested, and an ATE device for mating with the universal test adapter. The ATE device comprises a main control computer, a PXI and VXI bus instrument combination, an LXI-C/GPIB desktop instrument, a combined power supply, an electronic control combination, a channel expansion combination, a common test signal interface ICA, and a self-test adaptive device. The specific steps are as follows: (1) test generation; (2) test simulation; and (3) fault diagnosis. Compared with the prior art, the fault diagnosis and repair difficulty of a circuit board in the active equipment are solved, the universality, the reusability and the convenience of the equipment provide the beneficial effects for intelligent testing of the circuit board, and the software system platform and the system thereof can be combined with other software, so that the compatibility of the software is improved.

The invention relates to special cobalt-based wear-resistant alloy powder for laser remanufacture of a drilling jar. The powder is characterized by comprising the following components in percentage by weight: 0.6-1.0% of C, 32-36% of Cr, 7.5-9.5% of W, 3.0-3.6% of Mo, 0.8-1.2% of Ni, 0.2-0.6% of Mn, 2.0-2.4% of Si, 1.2-2.0% of Fe, 1.6-2.2% of B, 0.1-0.2% of Ce, 0.25-0.4% of Hf, 0.06-0.1% of Zr and the balance of Co. The cobalt-based wear-resistant alloy powder provided by the present invention is exclusively used in laser-cladding large-area failure working surfaces of the shaft journal of the drilling jar; and by cladding the alloy powder material, the drilling jar is restored to use, and the oxidation resistance, corrosion resistance and erosion and wear resistance are improved, thus effectively solving the difficulty in the repair of the failure shaft journal of the drilling jar.

The invention provides a hydraulic prop roller surface plasma surfacing welding machine which comprises a plasma welding gun, a workpiece turntable case, an X-axis transverse moving device, a Y-axis longitudinal moving device, a Z-axis lifting moving device, a powder feeder, a swinging device, a frame cross beam, machine frame double columns, an equipment base, a movable tailstock, a shading screen, an electric control cabinet and a power integrated cabinet. High-power plasma arc is utilized for melting alloy powder, a plasma surfacing welding process is adopted to replace a high-pollution chromium electroplating process, compared with laser cladding, the machine has the advantages of being low in investment, low in operation cost, easy and convenient to operate and wide in surfacing welding material range, has great application potential in the coal machine remanufacturing field, and effectively solves the problem of repairing the outer surfaces of a waste pillar plunger and a middlecylinder by the most economical means.

The invention discloses a marine-derived bionic cartilage material and a preparation method thereof, which belong to the field of a medical material. The marine-derived bionic cartilage material is obtained by decellularizing a marine-derived cartilage material by a special process, and has a natural bionic cartilage structure, which can be used for cartilage repair to induce cartilage regeneration; and the preparation method of the marine-derived bionic cartilage material comprises the steps of pretreatment of raw materials, rough finishing, decellularization, re-finishing, preservation liquid pretreatment, molding and the like. The marine-derived bionic cartilage material prepared by the method of the invention has the natural network structure and good mechanical strength, and is a lowimmunogenic bionic extracellular matrix scaffold material, which can solve the problem of clinical cartilage repair; moreover, the marine-derived bionic cartilage material has low risk of carrying andspreading the zoonotic virus, rich resources and low cost, and can fill the market blank of cartilage repair products and has profound social significance.

The embodiment of the invention discloses a laser cladding repairing method of a mine hydraulic support and a repairing powder. The laser cladding repairing method of the mine hydraulic support comprises the steps of cleaning an oil cylinder and removing oil contamination, corrosion and peeling impurities; checking oil cylinder defects; selecting the repairing powder; starting a semiconductor laser generator in cladding equipment to adjust technical parameters of the equipment so as to carry out laser cladding repairing; checking surface roughness and hardness; and packaging. The repairing powder comprises chromium, carbon, boron, silicon, nickel, molybdenum, niobium and iron. According to the laser cladding repairing method of the mine hydraulic support, the repairing difficult problem ofthe oil cylinder is solved, the production efficiency is enhanced by 40%, materials are saved by about 20%, and the quality qualified ratio reaches 95%. The repairing powder has the advantages of high hardness, HRC (Rockwell hardness) of 50-60, corrosion resistance and improvement of welding and cladding performance.

The invention discloses a method for online repair of a regenerative burner nozzle of a heating furnace and belongs to the technical field of heating furnace maintenance. The method is used for online repair of the damaged regenerative burner nozzle of the heating furnace. According to the technical scheme, the shape and angle of the burner nozzle are designed according to the heating capacity of a regenerative burner; meanwhile, a burner internal mold provided with reinforcing ribs is arranged, an old nozzle of the heating furnace and a peripheral furnace wall are dismantled when the heating furnace is blown out, the burner internal mold is placed in the furnace wall, an external mold is erected on the outer side of the furnace wall, a discharging port is formed in the top of the external mold, and micro-expansion refractory castable is adopted for pouring; after demolding, the heating furnace can be used after being dried normally. By the adoption of the method, the damaged regenerative burner nozzle of the heating furnace can be repaired quickly, all furnace walls of the heating furnace do not need to be dismantled, heating furnace maintenance time is shortened, and the construction cost of the heating furnace is reduced; meanwhile, the heating capacity of the regenerative burner of the heating furnace can be adjusted, so that the heating furnace supplies heat more balanced and reasonable, and the heating capacity and temperature uniformity of the heating furnace are improved.

The invention provides a guiding blade mold and a design method for contraction thereof. The method comprises the steps that: Step 1: a determined guiding blade mold is enlarged as a whole according to a contraction rate of chord lengths of an upper marginal plate and a lower marginal plate, and an enlarged guiding blade mold is obtained; and Step 2: the length of a blade body in the enlarged guiding blade mold and the length of the blade body after being enlarged according to the contraction rate thereof are compared; when the length of the blade body in the enlarged guiding blade mold is smaller than the length of the blade body after being enlarged according to the contraction rate thereof, the length of the blade body is first extended, reduced thickness of the upper marginal plate andthe lower marginal plate is caused at the same time, and then thickening treatment is conducted to the upper marginal plate and the lower marginal plate; when the length of the blade body in the enlarged guiding blade mold is larger than the length of the blade body after being enlarged according to the contraction rate thereof, the length of the blade body is first shortened, increased thicknessof the upper marginal plate and the lower marginal plate is caused at the same time, and then thickness reduction treatment is conducted to the upper marginal plate and the lower marginal plate; andtherefore, the design of contraction of the guiding blade mold is completed and manufacturing of the guiding blade mold is conducted.

The invention relates to a two-stage unsupported construction method used for repairing damaged hydraulic concrete beams, belonging to the technical field of civil engineering. The construction method comprises the following steps: a node slot hole is manufactured at the lower part of a beam base body; the two sides of the node slot hole of the beam base body are respectively provided with a pulling rod steel bar; a node member is poured at the node slot hole position; concrete which is corroded and damaged at the bottom part of the beam base body is chiseled off; the steel bars which are corroded seriously at the bottom part of the beam base body are removed and loosened and laminated parts are eliminated; the two sides of the bottom part of the beam base body are respectively provided with additional steel bars; and a concrete protective layer with the concave-shaped section is poured at the bottom part of the beam base body and covers the additional steel bars, the pulling rod steel bar and the node member which are built into a whole body with the beam base body. The construction method bears construction period load applied to the beam body by damaged concrete beams and a pulling rod system, and saves external supports. After the construction is completed, the pulling rod steel bar becomes a main stressed bar of the concrete beam, thus realizing that one object has two purposes, solving the difficulties on repairing the hydrostructure, and also greatly saving the engineering cost.

The invention relates to a method and a device for forming a U-shaped elastic knot by cold pressing. The method and the device are characterized in that the elastic knot is formed by adopting one-time pressing of a pressing die; the pressing die is produced by using a pressing machine and mainly comprises an upper die and a lower die; the upper die is of a gate-type structure; an arched concave part is arranged in the middle of the upper die; a protruded part in the middle of the lower die is mutually matched with the arched concave part of the upper die; the top end of the upper die is formed by splicing an upper die base plate with a plurality of upper die rib plates; and the bottom end of the lower die is formed by splicing a lower die base plate with a plurality of lower die rib plates. According to the method and the device, the U-shaped elastic knot can be formed by pressing at one time without rework; and the method and the device have the advantages of high efficiency, batch production, favorable forming quality and high forming identical degree of products.

The invention discloses a method for stripping an organic fluorine waterproof agent. The method specifically comprises the following steps: (1) preparing a working solution; (2) putting a plus material needed to be returned for repair into the working solution, heating to more than 95 DEG C, and boiling for 30-45 minutes; (3) washing for 5-10 minutes by using hot water at the temperature of more than 90 DEG C; (4) preparing a fresh working solution; (5) putting the plus material treated in the step (3) into the fresh working solution prepared in the step (4), heating to more than 95 DEG C, and treating for 20-30 minutes; and (6) finally, washing for 5-10 minutes by using hot water at the temperature of more than 90 DEG C. By adopting the method disclosed by the invention, while organic fluorine is stripped from a fabric, an excellent hydrophilic property is brought to the fabric, so that a good basis is laid for returning defective cloth for repair; and besides, experiences prove that the method disclosed by the invention also has a very good effect of stripping fluorine-free waterproof agents.

The invention provides a device for repairing soil with organic matter-heavy metal combined contamination. The device comprises a crushing unit, a microwave unit, an oxidation unit, an activation unitand a flue gas treatment unit which are connected in sequence, and further comprises a fluidization reaction unit connected with the microwave unit. According to the invention, microwave, oxidation,activation and fluidization treatment technologies are integrated, and soil with organic matter-heavy metal combined contamination can be repaired; and a method utilizing the device is simple to operate, good in heavy metal solidification effect and high in organic matter removal rate, and particularly can be used for repairing soil with high organic matter concentration.

The invention relates to a method for repairing a reactor titanizing layer in a titanium sponge production process. The method comprises the following steps: mixing D40-D200 solvent oil with titanium powder, smearing a reactor titanizing layer to be repaired, evacuating a reactor, filling the reactor with argon, putting the reactor into a cold end of a distillation stage for use, placing the reactor into a hot end of a next reduction stage for use after operation at the cold end of the distillation stage is finished, and finishing the repair of the titanizing layer in the process. The method is combined with production, the reactor titanizing repair and production can be simultaneously performed, the utilization rate of the reactor is greatly improved, meanwhile, the power consumption of an independent titanizing process is reduced, and the furnace occupation condition of independent titanizing is avoided.

A desilting, grouting and reinforcing method for cracks of a pavement with an empty bottom comprises the following steps: injecting water into a void area at the bottom of a rigid pavement slab, stirring to enable sludge to form slurry, thoroughly pumping out the slurry, and then grouting and reinforcing. According to the method, the plate bottom slurry can be thoroughly removed, the void area canbe completely filled with the grouting slurry, a good crack reinforcing effect is achieved, and the problem that the reinforcing material is difficult to inject due to the fact that the bottom of thevoid road rigid pavement plate is silted is fundamentally solved.

The invention provides a repairing method of inconstant cracks of a concrete building body. The method comprises the steps of step one, crack marking; step two, groove forming along the cracks; step three, hole drilling in oblique directions; step four, groove top sealing; step five, glue injection mouth installing; step six, glue injection; step seven, surface finishing. The method has the advantages that the difficult problem of the repairing of the inconstant cracks on the concrete building body is solved, a communicated space is created for the glue injection process of the cracks so thatglue can completely fill cracking regions, the repairing effect of the inconstant cracks on the concrete building body is significantly improved, the durability and safety of a concrete structure is enhanced, the operation is convenient, construction is easy, the repairing construction efficiency is high, large equipment is not needed, construction can be conducted in various complicated environments, and the cost is lower.