41results about How to "Reduce thread consumption" patented technology

The invention discloses a polycrystalline silicon ingot ripping method, which comprises the following steps of: 1, pouring cooling liquid into a slurry tank and adhering a polycrystalline silicon ingot onto a tray; 2, mounting a diamond steel wire on an unwinding shaft on a workbench to form a wire net by wire laying at a low tension value, and performing wire laying at a high tension value after a high wire level and a lower wire level are set; 3, assembling the tray with the fixed polycrystalline silicon ingot into a machine, adjusting the position of the tray to ensure that the cut thicknesses of off cut on the four sides are equal, lowering the workbench down, allowing the bottom wire net to suspend at a position which is 1mm away from the highest point on the surface of the silicon ingot, and setting the position as a null position; and 4, closing all sliding doors and setting cutting parameters for cutting, wherein the cutting parameters comprise a workbench speed, a linear speed, flow, tension and a wire returning rate. In the embodiment of the invention, the diamond steel wire is adopted, so that the production efficiency of an ingot ripping process is improved, and manufacturing cost in the process is reduced.

The invention discloses a superconduction controllable reactor. Superconduction control coils, working coils, a low-temperature cryostat and a magnetic shielding iron core are respectively in a hollow cylinder shape, a high-magnetic-conductivity iron core consists of an upper magnetic conducting iron core and a lower magnetic conducting iron core, the upper magnetic conducting iron core and the lower magnetic conducting iron core are respectively in a cylinder shape and are respectively and fixedly arranged on an upper cover plate and a lower cover plate of the low-temperature cryostat, a space between the two iron cores is filled and supported by epoxy resin material, the filling height of the epoxy resin is equal to 1 / 2 to 1 / 3 of the height of each working coil, the superconduction control coils are positioned in the low-temperature cryostat, and are arranged in a coaxial or similarly coaxial way from interior to exterior, the working coils sleeve the low-temperature cryostat, and are respectively positioned in the magnetic shielding iron core, and the high-magnetic-conductivity iron core is made of iron powder cores or magnetic powder cores. The superconduction controllable reactor has the advantages that the usage amount of superconduction wires is reduced, the technical complexity of the manufacturing of the low-temperature cryostat is decreased, the additional heat load on a low-temperature system caused by the vortex loss of the high-magnetic-conductivity iron core is effectively reduced, the refrigerating cost is reduced, and the safety and stability of the low-temperature system are improved.

An equal-line-loss computation method for a multi-line cutting machine is achieved by calculating loop rate of any one point in multi-line cutting. The loop rate of the any one point is calculated through the following formula: K=(1-beta*fw*a-2*beta*Vw*Vw) / (1+beta*fw*a), wherein r is the radius of a cutting material, p is a main roll groove distance, C is set abrasion area, a is linear acceleration, Vw is linear speed, L is the length of the cutting material, h is cutting depth, fw is inlet line quantity, k is loop rate, and V(h) is a function of the feeding speed and the cutting depth. Beta=alpha*V(h)*L*C / (fw*p*a*Vw) / 30. Alpha= sqrt (r*r-(r-h)*(r-h)). The V(h) is set before machining. The equal-line-loss computation method guarantees that a line is scraped until enough area is cut, namely abrasion loss is uniform, optimum abrasion loss is achieved, and a use amount of lines is saved.

The invention discloses an adaptive transmitting end position adjusting method for improving the interoperability of electric vehicle wireless charging coils. In the method, a controller, a transmitting end and a receiving end are adopted to establish a system circuit model, a coupling coefficient meeting charging requirements in interoperation of a rectangular coil and a DD coil and a coupling coefficient obtained by calculation are acquired to adjust the position of the transmitting end, and then the coupling coefficient in the XY direction infinitely approaches the coupling coefficient meeting the charging requirements in interoperation of the rectangular coil and the DD coil. Based on a variable-step-size 'disturbance-observation' algorithm, no complicated mathematical calculation is needed, no extra communication circuit is needed, the coupling coefficient can be predicted simply by measuring transmitting end or ground equipment parameters and serves as a basis for position adjustment, the system structure is simplified, and the disturbance of a strong magnetic field to wireless communication is avoided.