37results about How to "Good antimagnetic" patented technology

The invention provides a bearing bush and a process thereof for spraying MoS2 on an alloy layer for solving the problem that the alloy layer or the plated layer of the bearing bush peels off frequently. The bearing bush comprises a steel backing layer and the alloy layer fixedly arranged. The alloy layer is provided with a spraying layer fixed with the alloy layer. The alloy layer is one of an aluminum alloy layer or a copper-lead alloy. The spraying layer comprises a PI (Polyimide) resin layer, a MoS2 layer and a PAR (Parylene) lubricating coating sequentially arranged. The PI resin layer is contacted with the alloy layer. The bearing bush can effectively improve the dry grinding resistance, the anti-occlusion performance, the corrosion resistance and the wear resistance through the MoS2 layer by arranging the spraying layer on the alloy layer, the problem that the inner surface of the bearing bush in the installation and use process is scratched is solved, and the service lives of the bearing bush and lubricating oil in the bearing bush are prolonged. The bearing bush is good in practicality, and the whole manufacturing process of the bearing bush is safe and environment-friendly, so that the environmental pollution can be reduced.

The invention discloses a hard disk storage cabinet, which relates to the technical field of storage devices. It is invented to solve the problem that the prior art is inconvenient for users to manage massive data resources. The technical solutions disclosed in the embodiments of the present invention include: a power supply, a cabinet body, a sealed door, an inner box, a control circuit board, a hard disk interface, a hard disk rack and a hard disk enclosure; the sealed door is arranged on the front side of the cabinet body; the inner box is arranged on the front side of the cabinet body; Inside the cabinet body, there is a gap between the inner box body and the cabinet body, and the control circuit board is located in the gap or is arranged in the inner box; the hard disk rack is arranged in the inner box, and the hard disk box is arranged on the hard disk rack. The number of hard disk racks is One or more, the number of hard disk boxes is multiple; the hard disk interface is arranged on the rear side of the hard disk box, and the hard disk interface is connected with the control circuit board; the power supply supplies power to the control circuit board and the hard disk interface. This scheme can be applied in the field of data management.

The invention belongs to the field of stainless steel material molding, in particular to a non-magnetic ventilation box iron material for a nuclear power / hydropower station and a preparing method of the non-magnetic ventilation box iron material. Ventilation box iron 0Cr18Ni9 comprises chemical components including 18%-19% of Cr, not larger than 4.0% of Mn, 8%-9% of Ni, not larger than 0.04% of C,not larger than 1.0% of Si, not larger than 0.035% of P, not larger than 0.020% of S, 2%-3% of Cu, 0.18%-0.22% of N and the balance Fe and inevitable impurities. The ventilation box iron 0Cr18Ni9 isobtained through technologies of burdening, electric-arc furnace smelting, AOD furnace refining, electroslag remelting, continuous mill operation, solution treatment, wire winding, acid pickling, drying, drawing, solution treatment, roll forming, cutting, checking, packaging, storage and the like in sequence. The preparation technology is simple, and oxidation machining is not needed. The stainless steel material prepared through the method has the beneficial effect that the austenite structure is stable, the magnetic conductivity is reduced while the strength is guaranteed, the condition thatthe magnetic conductivity mu is smaller than or equal to 1.1(H=15924 A / m), the beneficial effects of high ductility, good resistance to oxidation, good diamagnetism, resistance to intergranular corrosion and the like are achieved, and traditional 0Cr18Ni9 austenitic stainless steel can be replaced.

The invention provides a magnetic-suspension wave detector. The magnetic-suspension wave detector comprises a shell, a fixed permanent magnet, a first diamagnetic body, a coil, a second diamagnetic body and a suspension permanent magnet, wherein the fixed permanent magnet, the first diamagnetic body, the coil and the second diamagnetic body are sequentially arranged at the inner part of the shell from top to bottom, the suspension permanent magnet is positioned in the coil, and the magnetic pole magnetisms of the fixed permanent magnet and the suspension permanent magnet facing each other are different. According to the magnetic-suspension wave detector provided by the invention, the gravity born by the suspension permanent magnet can be offset through an attraction force from the fixed permanent magnet to the suspension permanent magnet, and the suspension permanent magnet is guaranteed to be in a stable state through the diamagnetic bodies which are positioned at the upper part and the lower part of the suspension permanent magnet; and when the suspension permanent magnet shifts to optional one direction, a component force of a horizontal direction or a vertical direction of a resulting force born by the suspension permanent magnet is opposite to a shifting direction, thus the suspension permanent magnet can be quickly and accurately attracted to return to a balance position, and the sensitivity and the accuracy of monitoring are increased.

The invention discloses an electromagnetic valve of an automatic gearbox. The electromagnetic valve comprises a valve body with a valve cavity and an electromagnetic coil assembly. A hydraulic oil opening P and a hydraulic oil opening A are machined in the valve body. A valve element assembly is installed in the valve cavity of the valve body. The valve body is a plastic valve body formed by processing plastic. The valve element assembly is composed of a steel ball, a plastic valve stopper and an ejector rod, wherein the steel ball and a one-way oil opening in the valve cavity can form steel-plastic type soft sealing cooperation, and the ejector rod is used for axially pushing the steel ball to open the one-way oil opening so that an oil path between the opening P and the opening A can be through. An oil hole is formed in the plastic valve stopper, the electromagnetic coil assembly and the valve body are connected into a whole through a plastic sealing body, the tail end of the ejector rod extends into the electromagnetic coil assembly, and the electromagnetic coil assembly controls the ejector rod to push the steel ball through combination of electromagnetic force and spring force. The valve body is fixedly provided with a filter net connector which can enable the electromagnetic valve of the automatic gearbox and a speed changer valve plate to achieve quick insertion type installation. The filter net connector is provided with a filter net for filtering hydraulic oil flowing through the opening A and the opening P.