5results about How to "Easy to attach" patented technology

The application belongs to the technical field of soft magnetic material preparation, and particularly relates to a ferrosilicon magnetic material and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing ferrosilicon magnetic powder and a passivation agent, and then performing primary heat treatment and cooling to room temperature at a speed of not higher than 30 DEG C / h; (2) mixing the magnetic powder obtained in the step (1) with the passivation agent to obtain passivated magnetic powder; (3) adding a first coating agent to the passivated magnetic powder to perform primary coating, and then performing secondary heat treatment; and (4) adding a second coating agent to the magnetic powder obtained in the step (3) to perform secondary coating, pressing, and then performing tertiary heat treatment. The average particle size of the first coating agent is 300 nm-1 mu m; and the second coating agent comprises colloidal particles, and the average particle size of the colloidal particles is not higher than 100 nm. The preparation method can improve the density and effective magnetic permeability of the ferrosilicon magnetic material, so that the ferrosilicon magnetic material has excellent magnetic performance, the loss is greatly reduced, heat generation is reduced, and the device is beneficial to energy saving and high efficiency.

The application discloses a VHB adhesive attaching device, which comprises a platform and a bearing table, a fixed pipe is fixedly arranged on the platform, a rotating pipe is fixedly arranged on the bearing table, and a fixed block is rotationally connected with the rotating pipe; a plurality of bases are fixedly arranged on the bearing table, an intermediate rod is slidably arranged on each of the bases, a clamping rod is slidably arranged on the intermediate rod, the clamping rod is fixedly provided with a polygonal block, a first guide groove is arranged on the base, and the polygonal block is slidably arranged in the first guide groove; the plurality of clamping rods are arranged to clamp the finished product, so that the stability of the finished product in the rotating process is ensured, excessive friction is avoided, and the phenomenon of scratching is avoided; meanwhile, when the bearing table rotates with the finished product, the clamping rod on one side of the finished product attached to the bearing table is separated from the finished product and avoids the finished product, so that the back adhesive of the edge of the finished product is attached.

This invention discloses a small-sized printed circuit board radio frequency identification (RFID) tag antenna with anti-metal interference, comprising three metal layers from top to bottom. The top layer is a radiating layer with a "U"-shaped antenna of zigzag structure on its surface. The middle layer is an impedance matching layer with a non-resonant loop structure on its surface. The bottom layer is a grounding shielding layer. An FR-4 dielectric substrate is placed between the top radiating layer and the impedance matching layer, and similarly, an FR-4 dielectric substrate of the same thickness is placed between the impedance matching layer and the grounding shielding layer. Furthermore, short-circuit walls connecting the three metal layers are provided on both sides of the edges. This invention utilizes mature printed circuit board (PCB) processing technology, enabling efficient and low-cost manufacturing of the tag antenna. The stability and consistency of PCB processing technology ensure product quality while supporting large-scale mass production, suitable for industrial applications. Combined with the multi-layer antenna design of this invention, the precise processing of complex electromagnetic structures is achieved through standardized processes, simplifying the production process and significantly reducing manufacturing costs. Compared with traditional ceramic antenna designs that require precise material preparation, molding and sintering steps, this invention is not only easier to process, but also more cost-effective and easier to promote and apply.

The invention relates to a wafer bearing device and an adjusting method of the wafer bearing device. The wafer bearing device comprises a bearing table used for bearing a wafer; the bearing table comprises at least one sub-bearing table, and a bearing surface is arranged on the sub-bearing table; the at least one adjusting assembly is arranged corresponding to the sub-platform deck, and the adjusting assembly is arranged on one side, deviating from the bearing surface, of the corresponding sub-platform deck; and the adjusting assembly is used for driving the sub-stage to move so as to adjust the orientation of the bearing surface of the sub-stage and enable the bearing surface to be in contact with the warping position of the wafer. According to the invention, the warped wafer can be better attached to the bearing platform, and the processing precision and the manufacturing yield of the subsequent manufacturing process can be improved.

The utility model discloses a high -strength disc spring device for drilling machine, including disc spring main part, the middle part fixed setting of disc spring main part has annular fixed part, the utility model discloses a high -strength disc spring device for drilling machine, through the location of annular clamping slot and annular clamping seat's convenient to the primary location of annular connecting seat, through two limit elastic sheet respectively with two limit slot location convenient to the further location of annular connecting seat, through a plurality of connecting clamping slots respectively with a plurality of connecting clamping column's location convenient to the primary location of annular connecting piece, through a plurality of fixed clamping slots respectively with a plurality of fixed clamping column's location convenient to the further location of annular connecting piece, and then convenient to the firm attachment of a plurality of reinforcing bars in the inside of disc spring main part, through the cooperation setting of annular connecting seat, a plurality of reinforcing bars and annular connecting piece can improve the structural strength of disc spring main part, make it more durable.