31results about How to "Full escape" patented technology

The invention relates to a welding method, in particular to a welding method in which an electric arc is added to heat a copper padding plate and preheat aluminum alloy and magnesium alloy, aiming to reduce defects of blowholes and cracks at the joint, ensure good forming at the back of the joint, and finally obtain high quality joint which is suitable for aluminum alloy and magnesium alloy. In order to solve the problems that the aluminum alloy and magnesium alloy are liable to generate blowholes and cracks during welding and the forming at the back of the joint is poor, the invention provides the welding method in which the electric arc is added to heat the copper padding plate and preheat aluminum alloy and magnesium alloy. The copper padding plate is adopted when the butt joint is welded using aluminum alloy and magnesium alloy, and the electric arc is added at the back of the copper padding plate. The shape of the copper padding plate varies with the weldment. The method has the advantages of simple and easy practice, convenient operation, and obvious effect for improving the forming at the back of the joint and the quality of the joint.

The invention provides a gas protection welding method of 1000 MPa-level engineering machine high-strength steel thick plates. Welding base materials are Rm1000-1100 MPa engineering machine quenched and tempered steel plates in equal-thickness flat plate butt joint, a groove is a double-side V-shaped asymmetric groove, the angle of the groove is 60 degrees, a truncated edge is 2-3 mm long, and an assembly gap is 2 mm wide. According to welding materials, bottoming welding wires are 700 MPa-level solid-core gas-protected welding wires with the diameter of 1.2 mm, and filling and surface covering welding wires are 1000 MPa-level solid-core gas-protected welding wires with the diameter of 1.2 mm. The welding method includes the welding steps that bottoming welding is conducted, filling welding is conducted, surface covering welding is conducted, slow cooling is conducted after welding, and joint areas in the range of 300 mm on the two sides of a weld joint are covered with asbestos cloth. Preheating is not needed, after-heating is not conducted, strength and toughness of a joint are ensured, the variety of welding gas and replacement frequency of equipment and the welding wires are reduced, the high-strength advantage of high-strength steel can be fully achieved, and maneuverability is high.

An abrasive disk is prepared from green silicon carbide, microcrystal corundum, and semi-burnt-out ceramic adhesive prepared from clay, feldspar and boron glass through sintering. Its advantages are no black core, and sufficient oxidization of carbon.

The invention discloses a chemical engineering sewage treatment front-mounted deodorization device. The chemical engineering sewage treatment front-mounted deodorization device comprises a stirring tank body, wherein a driving motor is arranged at the upper end of the stirring tank body, and is connected with a rotating shaft through a speed reducer; the rotating shaft extends into the stirring tank body; anchor type stirring paddles are arranged at the bottom end of the rotating shaft; a spiral defoaming blades are arranged in the middle of the rotating shaft; two defoaming transverse shafts are symmetrically arranged at the upper part of the rotating shaft; a plurality of defoaming saw teeth are arranged on the defoaming transverse shafts; a water inlet tube is arranged at the upper end of the left side of the stirring tank body; a water outlet tube is arranged at the lower end of the right side of the stirring tank body. The chemical engineering sewage treatment front-mounted deodorization device is simple and reasonable in structural design and convenient to use, through multiple stirring and defoaming functions, odor in sewage can be sufficiently released, harmful smell substances can be adsorbed by using an activated carbon adsorption device and are discharged out later, and thus an ambient environment can be prevented from being affected by the odor.

The invention discloses a halogenated hydrocarbon-contaminated soil remediation device. The halogenated hydrocarbon-contaminated soil remediation device comprises a halogenated hydrocarbon removal box, wherein a hopper is arranged on the upper left portion of the halogenated hydrocarbon removal box, a plurality of soil conveyor belts are obliquely arranged in the halogenated hydrocarbon removal box from top to bottom alternatively in a Z-shaped mode, a soil discharging conveyor belt is arranged on the bottom of the interior of the halogenated hydrocarbon removal box, infrared ray heating modulator tubes are distributed above the soil conveyor belts and the soil discharging conveyor belt, a gas collecting cavity used for collecting hot gas flows is formed in the upper right portion of the halogenated hydrocarbon removal box, a first exhausting fan is connected with the outer portion of the gas collecting cavity, the first exhausting fan is connected with a halogenated hydrocarbon catalytic combustion furnace, the halogenated hydrocarbon catalytic combustion furnace is connected with a heat exchanger, the heat exchanger is connected with a gas inlet pipe assembly, the gas inlet pipeassembly introduces tail gas into a tail gas purification box in which an alkaline solution is placed, a gas outlet is formed in the upper right portion of the tail gas purification box, and a secondexhausting fan is arranged on the gas outlet. The halogenated hydrocarbon-contaminated soil remediation device uses infrared ray, soil heating time is long, a heated surface of soil is large, and theremediation efficiency is high.

A mechanical shock device for effectively reducing laser cladding cracks mainly comprises a powder feeding type high-power semiconductor laser cladding device, a numerical control device and a mechanical shock assembly. According to the mechanical shock device, a workpiece to be subjected to fusion cladding is clamped through a three-jaw chuck or a four-jaw chuck, powder is fed to the workpiece in a preset powder feeding mode, mechanical shock with a certain frequency is applied to a single channel where laser cladding is completed, and a fusion cladding layer with excellent quality is obtained. Since dendritic crystals which are separated out preferentially in a molten pool can be effectively broken into pieces through mechanical vibration caused by the shock, crystal grains are refined, the plasticity of solidified crystals is improved, and heat cracks are avoided; moreover, under the hammering action of a mechanical shock hammer on the cladding single channel, residual tension produced in the cooling process of the molten pool can be partially balanced out, cold cracks are reduced, and the fusion cladding layer with the excellent quality is obtained.

The invention discloses a dual-MAG heat source dual-filament submerged arc build-up welding method which aims to solve the problems such as gas holes in aluminum bronze MAG build-up welding, incomplete fusion, slag inclusion, welder poisoning caused by copper welding smoke gas, and the like. The dual-MAG heat source dual-filament submerged arc build-up welding method comprises the following steps:I, removing spray nozzles for dual welding guns connected to a dual-MAG power supply, adopting dual conductive nozzles to separately clamp dual welding wires, embedding protective soldering flux, andadopting direct-current reverse connection for the dual-MAG power supply; II, enabling the dual welding guns to simultaneously arc and feed wires, enabling end parts of dual wires to define an included angle to advance side by side, and enabling two electric arcs to define a congruent melting tank; III, regulating current of the dual-MAG power supply to be 160A-200A, enabling voltage to be 24V-28V, enabling welding speed to be 30 cm/min to 40cm/min, enabling offset of adjacent two welding beads to be 1/3-1/2 of width of an upper welding seam (7), performing build-up welding on 3-4 wear-resisting layers, and enabling the thickness of a bottoming layer to be not greater than 3 mm. The welding method disclosed by the invention can be applied to the field of aluminum bronze build-up welding engineering of a water turbine.

The invention belongs to the technical field of structural steels for ship and ocean engineering, and particularly relates to a 60mm steel plate with excellent performance in a thickness direction for an ocean platform and a production method thereof. The 60mm steel plate with excellent performance in the thickness direction for the ocean platform comprises the following chemical components by mass percent: 0.09-0.14% of C, 0.20-0.50% of Si, 1.10-1.50% of Mn, less than or equal to 0.015% of P, less than or equal to 0.005% of S, 0.030-0.060% of Nb, 0.010-0.020% of Ti, 0.015-0.050% of Als, the balance of Fe, and inevitable impurities. The steel plate has excellent performances in the thickness direction, steelmaking production adopts a single slag process, and the production method is simple and feasible.

The invention provides a low-temperature heatable cigarette having mint taste. The low-temperature heatable cigarette comprises an atomization substrate section and a cooling cigarette holder connected with each other, the structure of the cooling cigarette holder is a hollow cylindrical tubular structure and sequentially comprises a shell, an adhesive layer and a cooling layer from outside to inside, the adhesive layer enables the shell and the cooling layer bonded together, the adhesive layer is provided with an internally contained dissolution agent and a thermosensitive microcapsule for tobacco flavor containing mint, the thermosensitive microcapsule begins to release the dissolution agent and the tobacco flavor after response temperate is reached, accordingly the bonding state and flavor state between the shell and the cooling layer are changed, and the surface area of the cooling layer and a smoke flow path is changed. Under the influence of multiple effects of lubrication, dissolution and the like of the dissolution agent released by the thermosensitive microcapsule on an adhesive, the stickiness of the cooling layer and the shell is reduced, accordingly the effect of makingthe cooling layer shedding from the shell is achieved, a smoke cooling effect is remarkable, meanwhile the tobacco flavor containing mint fragrance, and a sensory cooling effect is better.

The invention provides a manufacturing method of flame-resistant wood floor in architectural decoration and finishing. The manufacturing method comprises following steps: wood waste material straw andPhyllostachys edulis waste material are adopted to prepare a mixed raw material, mixing stirring is carried out under high temperature conditions, a mixed flame retardant is prepared, the mixed raw material and the mixed flame retardant are mixed through stirring so as to obtain a mixed mould material, the mixed mould material is subjected to pressing so as to obtain rectangular wood sheet materials, a mixed flame-resistant paint is prepared, and the rectangular wood sheet materials are immersed in the mixed flame-resistant paint. According to the technology, renewable resources are adopted to prepare the wood sheet material, so that resource waste is reduced; the prepared flame retardant is subjected to full mixing stirring with the raw material under high temperature conditions, flame retardant activity is increased; full stirring is adopted in the mixed mould material preparation process, so that uniform distribution of the flame retardant in the mixed mould material is realized, wood sheet material manufacturing quality is increased; and wood sheet material immersion in the mixed flame-resistant paint is capable of improving the flame resistance of the surface of the wood sheet material, and eliminating fire hazard hidden troubles completely.

An environmentally friendly tape casting method of a polycrystalline sapphire transparent thin plate is provided. High-purity submicron-order spherical aluminum oxide is adopted as a main raw material, a sintering auxiliary agent is added, and polyvinyl alcohol, waterborne acrylic resin, styrene-acrylic emulsion, and the like are adopted as main adhesives, and deionized water is adopted in place of an organic solvent. The method overcomes problems, namely difficult production and processing, a low yield and a small manufacturing dimension in present sapphire production. The dimension of a polycrystalline sapphire thin plate blank manufactured by the method can be 450*450 mm that is an ultrahigh dimension, and most monocrystal sapphire products can be replaced. The waterborne adhesives areadopted and the water is adopted to replace the organic solvent in the method, thus reducing environment pollution.

The invention provides a construction method of a cast-in-place bearing wall. The construction method comprises the steps of building a wall framework, preparing a wall template, preparing a mixed slurry, arranging a wall template in a surrounding mode to form a template layer, enabling wall templates within the template layer to be connected together, pouring mixed slurry into the template layerin a layer-by-layer casting manner, allowing the template layers to be connected together during pouring, vibrating the mixed slurry, and disassembling a wall template. According to the technical scheme, a lot of gypsum raw materials are reasonably applied in the field of construction engineering. In the pouring construction process, the wall templates are always kept in a posture perpendicular tothe ground, so that the flatness of the surface of the bearing wall formed by final pouring is higher. The side surface of the bearing wall is perpendicular to the ground, and the construction quality is improved. Full vibration is carried out in the pouring process, so that the concrete is condensed and dense, the bearing capacity of the bearing wall is improved, and the construction quality isimproved.

The invention provides a spillway tunnel bottom plate construction method. The spillway tunnel bottom plate construction method comprises the following steps that underground earthwork is gradually excavated in a target area section by section to form a plurality of linear tunnel sections and a plurality of bent tunnel sections, all the linear tunnel sections and all the bent tunnel sections are finally communicated in sequence according to the excavation sequence to form a spillway tunnel, meanwhile, bottom plate units are built in a segmented mode in sequence in the extending direction of the spillway tunnel, all the bottom plate units are finally and sequentially connected according to the building sequence to form the spillway tunnel bottom plate, and when the bottom plate units are located in the linear tunnel sections, the corresponding bottom plate units are shorter than 8m, and when the bottom plate units are located in the bent tunnel sections, the corresponding bottom plate units are shorter than 4m. By the adoption of the technical scheme, disturbance to surrounding rock of the spillway tunnel is reduced, the surrounding rock is reinforced in time, water seepage is effectively prevented by excavating the spillway in a segmented mode, building the bottom plate units in a segmented mode and pouring concrete in a layered mode, and the safety protection performance is enhanced by building side wall units on the left sides and the right sides of the bottom plate units; and the concrete engineering construction quality is improved.

The invention provides a basement protection wall concrete pouring construction technology. The technology comprises the following steps that a foundation pit is dug, a form frame is arranged, a surface form is installed, a mold cavity is formed between the surface form and the inner wall of the foundation pit, a rebar frame is arranged in the mold cavity, concrete is poured layer by layer, and curing is carried out on a basement protection wall. According to the technical scheme of the technology, the rebar frame is embedded in the concrete, the structure strength and the bearing capacity ofthe basement protection wall are enhanced, through the adoption of the steel surface form, the flatness of the surface of the basement protection wall is improved, by adopting a layer-by-layer pouringconstruction process, air doped in the concrete can sufficiently escape, the concrete is compact in condensation, the concrete engineering quality is improved, cracks can be effectively avoided on the surface of the concrete by flattening the concrete in an initial setting state, sufficient maintenance is conducted on the surface of the poured and formed basement protection wall, and the concreteengineering construction quality is guaranteed.

The invention provides a steel mould trolley tunnel concrete lining construction method. The steel mould trolley tunnel concrete lining construction method comprises the following steps that underground earthwork is successively excavated in a target region in a segmented mode to form a plurality of linear tunnel sections and a plurality of bent tunnel sections, all the linear tunnel sections andthe bent tunnel sections finally communicate in sequence according to the excavation sequence to form a spillway tunnel, and meanwhile, a steel mould trolley is used for conducting segmented successive lining in the extending direction of the spillway tunnel, linear tunnel walls are formed on the linear tunnel sections in a lining mode, bent tunnel walls are formed on bent tunnel sections in a lining mode, all the linear tunnel walls and the bent tunnel walls are finally connected in sequence according to the lining sequence to form a tunnel body protecting wall, the length of the linear tunnel walls is smaller than 8 m, and the length of the bent tunnel walls is smaller than 4 m. By adopting the technical scheme, disturbance to surrounding rock of the spillway tunnel is reduced through the methods of segmented excavation, segmented lining and layered concrete pouring, the excavated surrounding rock is reinforced in time, water seepage is effectively prevented, and the safety of constructors is guaranteed.

The invention discloses a Chinese herbal bath lotion with a pig immune improving function. The Chinese herbal bath lotion is prepared by mixing of honeysuckle, liquorice, gallnut, cortex phellodendri, fructus kochiae, pericarpium granati, saponin, potassium alum and bitter artemisia. In addition, the invention further discloses a preparation method of the Chinese herbal bath lotion. The preparation method includes the steps of S1), preparation of raw materials; S2), frying; S3), cold storage; S5), preparation. Immune of the pigs bathed with the Chinese herbal bath lotion can be improved obviously, morbidity of the pigs is reduced, medicinal ingredients of Chinese herbs, absorbed by the pigs are through the skin, and good effect is achieved.