10results about How to "Increase magnetic induction" patented technology

The invention relates to the technical field of oriented silicon steel cold rolling production, in particular to a cold continuous rolling method and equipment for efficiently producing low-temperature high-magnetic-induction oriented silicon steel. According to the method, efficient and stable production of the thin-gauge low-temperature high-magnetic-induction oriented silicon steel can be achieved, and meanwhile the excellent plate shape and the high-magnetic-induction performance are guaranteed; through cooperative control of targeted roll shape design and process parameters, the problems of edge drop and convexity of the steel strip can be accurately regulated and controlled, the strip shape defect easily occurring in the rolling process of the thin-gauge steel strip is effectively avoided, the finished steel strip has excellent straightness, and the rolling quality of the thin-gauge steel strip is improved. A good foundation is provided for smooth proceeding of subsequent procedures and stacking use of final products; meanwhile, by optimizing texture orientation control in the cold rolling process and combining with an efficient inhibitor formed through subsequent nitriding treatment, the magnetic induction intensity of the finished low-temperature high-magnetic-induction oriented silicon steel is remarkably improved, meanwhile, iron loss is reduced, the magnetic performance of the product is more excellent, and the use requirement of power equipment for efficient soft magnetic materials can be better met.

The application discloses a sound production device and electronic equipment, and relates to the technical field of electroacoustic energy conversion, wherein the sound production device comprises a magnetic circuit system, a shell, a mesh cloth and a vibration system; the magnetic circuit system comprises a magnetic yoke, a center magnetic circuit arranged on the magnetic yoke and a side magnetic circuit; the side magnetic circuit comprises two side magnets; the magnetic yoke comprises a bottom plate and two side plates connected with the bottom plate; the side magnetic circuit and the side plates are arranged around the periphery of the center magnetic circuit and are spaced apart from the center magnetic circuit to form a magnetic gap; the shell is provided with a communication hole; the mesh cloth covers the communication hole; the mesh cloth and the side plates are spaced apart to form an air flow channel; the air flow channel is connected with an external environment and a cavity on the inner side of the side plate through the mesh cloth; and the vibration system comprises a diaphragm and a voice coil, and the voice coil is arranged corresponding to the magnetic gap. The mesh cloth and the shell are integrally injection molded to realize complete filling; on this basis, the two side plates and the center magnetic circuit form a magnetic loop, the magnetic induction intensity of the magnetic gap is improved, and the acoustic performance of the sound production device is improved.

The utility model provides an intelligent terminal compatible with wall hanging and desktop use, which relates to the technical field of display equipment assembly and comprises a terminal body and an on-hook plate, and the terminal body comprises a rear cover and a support plate rotatably connected with the rear cover. The rear cover is provided with an installation cavity forming a protruding part, one end of the hinge is embedded in the installation cavity, and the other end of the hinge is connected with the supporting plate and used for supporting the terminal body when the table top is used. And the rear cover is provided with a power supply interface, and the power supply interface sequentially penetrates through the supporting plate and the on-hook plate to be connected to a wall junction box. A positioning part is arranged on the rear cover, a magnetic sheet is embedded in the rear cover, a positioning protrusion made of magnetic conductive materials is arranged on the hanging plate, and stable positioning is achieved through magnetic attraction. The whole structure is compact, assembling and switching operations are simple and fast, the number of extra assemblies is reduced, the manufacturing cost is reduced, and the user experience is improved.

The utility model relates to the technical field of loudspeaker, the utility model discloses a double hua si magnetic circuit system, including T iron, the magnetic steel of T iron outside setting and the hua si subassembly of T iron outside setting and located the upper end of magnetic steel, the gap groove is formed between magnetic steel and hua si subassembly and T iron, voice coil is located in the gap groove, the inside ring of hua si subassembly is equipped with the installation groove, the short circuit ring is inlayed in the installation groove, the inner wall of short circuit ring is flush with the inner wall of hua si subassembly. This technical scheme can increase the magnetic induction intensity and reduce the loudspeaker distortion under the condition of guaranteeing the invariable magnetic gap width by setting the short circuit ring in the hua si subassembly, the double hua si structure of this technical scheme is superimposed, can increase the magnetic conductivity cross -section area, guarantee the center position of short circuit ring in the volume of voice coil, so that when the magnetic circuit saturation magnetization, the wide magnetic field area will be produced on two hua si, and voice coil moves completely in the magnetic field, reduces the distortion.

This invention relates to a method for improving the texture orientation and processing properties of Fe-6.5%Si steel, belonging to the field of material modification technology. It includes composition adjustment, determining the normalization temperature range and cooling medium, cold rolling and annealing treatments, calculating the lattice slip energy of the cold-rolled non-oriented steel sheet, electrical pulse modification, and temperature control. This invention alters the magnetic and deformation properties of Fe-6.5%Si alloys through the addition of alloying elements and pulsed current treatment, resulting in low-iron-loss, low-noise, high-silicon electrical steel for power transformers that can be produced using rolling processes. The silicon steel sheets prepared using this invention have been validated in engineering applications. Third-party testing has shown that their performance indicators meet the requirements for silicon steel sheets used in transformers, demonstrating strong engineering practicality and enabling actual industrial production.

This invention belongs to the field of marine engineering and structural vibration control technology, and discloses a ball-bearing supported bidirectional active-passive tuned mass damper, which is composed of two arc-shaped tuned mass dampers with perpendicular motion directions. The inertial mass is supported on an arc-shaped base by a ball bearing assembly, cleverly converting sliding friction into low-resistance rolling friction, making the damper more sensitive to start, while maintaining a compact structure. In terms of passive control, the device dissipates energy through electromagnetic damping generated by the relative motion between the magnet assembly and the conductor plate. The integrated active control system, composed of a drive coil and a magnet assembly, can apply additional active control force to the TMD, thereby upgrading the traditional passive TMD to a higher-performance active-passive hybrid system, enhancing its adaptability and robustness to complex loads. In addition, the device adopts a non-contact electromagnetic guidance design, utilizing a figure-eight coil assembly in conjunction with a lateral magnet assembly to eliminate the friction of traditional mechanical guidance mechanisms.

The invention discloses a multi-acupoint synergistic excitation tinnitus treatment coil based on an auricle conformal composite loop. The coil comprises an auricle conformal composite loop adaptive to the auricle root contour and a plurality of acupoint collaborative excitation coils nested on the auricle conformal composite loop. The auricle conformal composite loop adopts a composite structure formed by combining a straight line section and an arc section, so that tight conformity with ear anatomical characteristics is realized; during working, cooperative excitation is formed through reverse configuration of currents of the main coil and the auxiliary coil, and a focusing electric field with enhanced vector superposition is generated at acupuncture points such as the ear door and the listening uterus. The problems that a traditional coil is poor in fitting degree and poor in focusing performance are effectively solved, and non-invasive efficient and accurate treatment is achieved.

This application discloses a complete production method for ultra-thin high-grade non-oriented silicon steel and its acid continuous rolling combined with 20-roll precision cold rolling. The thickness of the non-oriented silicon steel is (0.05~0.15)±0.002mm. The production method includes: heating: homogenization temperature 1000~1140℃; hot rolling: the initial rolling temperature of the first finishing rolling pass ≥950℃, the final rolling temperature of the last finishing rolling pass 850±15℃, and the hot-rolled plate thickness 1.80~2.30mm; coiling temperature 630±15℃; pickling and continuous cold rolling: pickling and multi-pass continuous cold rolling are performed using a multi-stand pickling and continuous cold rolling mill, and the hardened plate thickness is 0.2~0.35mm; normalizing the hardened plate: normalizing the hardened plate in a normalizing furnace to obtain a normalized hardened plate; normalizing temperature 850~950℃; 20-roll cold finishing; annealing: annealing temperature 900~1000℃, annealing time 40~120s.

The application discloses a kind of plasma source assembly and semiconductor process chamber, belong to the field of semiconductors.A kind of plasma source assembly, applied to semiconductor process chamber, the plasma source assembly includes: insulating medium pipe, Faraday shield, coil and magnetic conducting piece;The insulating medium pipe is used to communicate with the cavity of the semiconductor process chamber;The coil is wound on the outside of the insulating medium pipe;The magnetic conducting piece is encircled in the outer periphery of the coil.A kind of semiconductor process chamber includes the above-mentioned plasma source assembly.The application can at least solve the problem that high power in coil leads to higher power loss.

The invention relates to a high magnetic induction oriented high silicon steel strip and a preparation method thereof. The preparation method comprises the following steps that raw materials are subjected to smelting, continuous casting and hot rolling, and a hot rolled plate with the thickness being 2-3 mm is obtained; the hot-rolled plate is subjected to cold rolling, decarburization annealing and secondary recrystallization annealing treatment, and an oriented silicon steel strip is obtained; dispersing solid silicon oxide powder in an organic solvent to form slurry, and uniformly coating the surface of the oriented silicon steel strip with the slurry; the coated strip is subjected to siliconizing treatment at the temperature of 100-300 DEG C, the feeding speed is larger than or equal to 0.01 m / min, and the protective atmosphere of siliconizing treatment is a silicon-containing gaseous compound; and carrying out post-treatment on the siliconized high-silicon steel strip to obtain the high-magnetic-induction oriented high-silicon steel strip.