31results about How to "Generation of remission" patented technology

The invention relates to a manufacturing method of low-shrinkage and high-strength polyester industrial yarn. The process flow is high-viscosity molten polyester raw material—measurement—spraying—cooling—oiling—stretching—heat setting—winding; the polyester slices used are It is a high-viscosity chip obtained by solid-phase viscosification. The cooling process includes four parts: slow cooling, pre-cooling, windless zone cooling and blowing cooling. The pre-cooling adopts the method of active outer ring sequential pre-cooling. The hot air is conveyed through the active outer ring sequencer to cool the filaments. Through the introduction of the pre-cooling device, not only the disturbance of the tow caused by the downward movement of the fiber solidification point is reduced, the deviation rate of the linear density of the tow is controlled, but also the orientation and crystallization of the primary fibers are reduced, and the deviation rate of the linear density is ≤ 1.5%, breaking strength > 7.5cN / dtex, polyester industrial yarn with dry heat shrinkage rate of 1.8±0.5%.

The invention relates to a method for microbial catalytic regeneration of complexed iron, which utilizes the catalytic action of microorganisms to accelerate the oxidation regeneration of complexed iron, which can effectively alleviate the pollution caused by bacteria, serious degradation of complexing agents, and difficult regeneration of desulfurization liquid in the prior art. Problems, expand the applicable pH range of complexed iron, strengthen the stability of complexed iron, and can be directly applied to the fields of hydrogen sulfide removal, biohydrometallurgy and other fields.

The invention discloses a method for preparing a modified copper three-dimensional skeleton, which comprises the steps of successively placing the copper three-dimensional skeleton in two kinds of reaction solutions, washing and drying, and performing high-temperature treatment under an inert atmosphere. The invention also discloses a lithium battery negative electrode and a lithium battery using the modified copper three-dimensional skeleton as a material. In the present invention, the most commonly used Cu current collector is used as the three-dimensional copper framework, but it is modified. The material structure is simple, and too many inactive substances are not introduced, and the performance of the three-dimensional copper framework is improved; In the negative electrode of the battery, it can realize the uniform deposition of lithium, eliminate the growth of lithium dendrites, and alleviate the generation of "dead lithium". It has a high Coulombic efficiency during the cycle and the cycle life is significantly extended; at the same time, it can be applied to various battery systems , has good compatibility and electrochemical performance; at the same time, the invention has simple preparation process, low cost and easy large-scale production.

The invention relates to the technical field of sheet processing auxiliary devices, in particular to a sheet drilling device for the production process of automobilse. The sheet drilling device has the advantages that the drilling position of a sheet can be conveniently determined, and further drilling errors are reduced; in addition, the lifting direction of a drill bit can be conveniently controlled; meanwhile, heat generated in the drilling process can be relieved, so as to reduce the damage to the sheet. The sheet drilling device comprises a motor, a protective shell, a movable handle anda drill bit, wherein a protecting cover is arranged at the top of the protective shell in a sealing manner; the sheet drilling device further comprises a base, two groups of left supporting plates, two groups of fixed rods, two groups of limiting rollers, two groups of right supporting plates, a supporting plate, a positioning plate, one group of fixed threaded rods and one group of pressing plates and a positioning tube; one group of knobs are respectively arranged at the top ends of one group of fixed threaded rods; the sheet drilling device also comprises two groups of supporting frames, atop plate, multiple groups of connecting rings, multiple groups of limited threaded rods, multiple groups of baffles, an accommodation box, a delivering pipe and a transfer pump; a liquid draining pipe is arranged at the bottom of the left side wall of the accommodation box in a communicating manner; a switching valve is arranged on the liquid draining pipe.

The invention discloses a reactor double-plate equal-flow flow distribution device and a flow distribution structure. The distribution device includes a pressure vessel, a hanging basket and a support plate under the core. A descending cavity is formed between the outer wall of the hanging basket and the inner wall of the pressure vessel. The core The lower support plate is arranged at the bottom of the hanging basket, and the bottom of the pressure vessel forms a lower chamber. The lower support plate of the core is provided with through holes, and also includes a secondary flow equalizer and a flow distribution cylinder. The flow distribution cylinder is installed in the lower chamber. One end of the flow distribution cylinder is an open end, and the other end is a closed end. The open end of the flow distribution cylinder is connected to the bottom of the lower support plate of the core. The closed end of the flow distribution cylinder is provided with a number of first flow holes, and the secondary flow equalizer is installed In the flow distribution cylinder, several second flow holes are arranged on the secondary flow equalizer plate, and the first flow holes and the second flow holes are arranged alternately. The invention solves the problem of uneven flow distribution caused by the existing flow distribution structure, has the advantages of compact and simple structure, and is convenient for replacement and maintenance.

The invention relates to an efficient rotary disc welding wax die. The efficient rotary disc welding wax die comprises a base. The base is provided with a supporting column. A spark collector is arranged in the supporting column. A rotation shaft is arranged on the top of the supporting column and sleeved with a rotary disc through a connecting piece, the rotary disc can be detached, the surface of the rotary disc is electroplated with JR-CM fire-resistant diamond, and the rotary disc is provided with a hole with the diameter being 0.1 mm to be connected with the spark collector. A power device is arranged on the right side of the spark collector and connected with the rotation shaft. The efficient rotary disc welding wax die is simple in structure and good in heat resistant effect and can bear the temperature ranging from 1,500 DEG C to 2,000 DEG C, the spark collector is adopted and can effectively relieve sparks generated during work, the sparks are converted into electric power in time, energy is saved, cost is reduced, the work efficiency is improved, and the stability and safety of the structure are guaranteed; rotating and grinding are conducted at the same time, grinding is uniform, the surface smoothness is high, an oil cylinder nozzle is adopted, a corresponding gear rotates, stable running of the gear is guaranteed, and the service life is prolonged.