3results about How to "Strong scratch resistance" patented technology

This utility model discloses a magnetic charging base for walkie-talkies, relating to the field of charging technology for wired communication equipment. It includes a base assembly, and a magnetic head assembly is used for charging the walkie-talkie. The magnetic head assembly is connected to a control box assembly via a plug cable. The end face of the base assembly has a charging interface, a groove, and an anti-slip liner, while the end face of the magnetic head assembly has a charging port, a magnetic surface, and a protrusion. This magnetic charging base for walkie-talkies uses a magnetic connection for charging through the cooperation of the charging interface, charging port, and magnetic surface. It utilizes magnetic force to achieve a fast and stable connection, eliminating the need for cumbersome physical plugging operations, making operation simple and convenient. Simultaneously, the mechanical interlocking of the groove and protrusion assists the magnetic connection, and the high-friction anti-slip liner forms a three-dimensional anti-slip mechanism, solving the problem of insufficient stability in traditional magnetic charging and achieving a multi-dimensional anti-displacement effect.

The application relates to the technical field of electroplating, and discloses a chromium electroplating process for improving the hardness of a connector terminal, which comprises the following steps: performing surface pretreatment on the connector terminal, removing surface impurities through ultrasonic cleaning and micro-etching treatment; performing heating treatment on the connector terminal; performing electroplating treatment on the connector terminal by using an electroplating solution comprising trivalent chromium salt, boron nitride nanoparticles, ferroferric oxide nanoparticles, nickel ions, sodium dichromate and chromium alloy additives, so as to form a chromium plating layer; performing passivation treatment on the plating layer; performing low-temperature treatment on the plating layer; and spraying a protective layer on the chromium plating layer. Through the trivalent chromium salt and the sodium dichromate, the trivalent chromium salt is used to reduce hexavalent chromium ions into trivalent chromium, the toxicity of the hexavalent chromium is reduced, the sodium dichromate is used to provide a stable chromium source, the deposition of chromium elements in the electroplating process is ensured, the pollution of hexavalent chromium to the environment and the harm of hexavalent chromium to the health of operators are solved, and the environmental protection and safety of the electroplating process are improved.

This invention relates to the field of fire-resistant insulated cable manufacturing technology, and discloses a continuous manufacturing process for high-yield mineral-insulated fire-resistant cables, comprising: pretreatment, drawing pure copper rods into wires and then stranding and pressing them to obtain stranded copper conductors; insulation wrapping, wrapping mica tape around the outer wall of the stranded copper conductors to obtain an insulating core; filling and forming, longitudinally wrapping copper tape around the outer wall of the insulating core, and filling the space between the copper tape and the insulating core with magnesium oxide powder to form an insulating layer; sheath welding, welding the gaps between the copper tapes after longitudinal wrapping to obtain a copper protective sheath; corrugating and shaping, rounding the copper protective sheath, and then rolling the copper protective sheath into a corrugated tube shape to obtain a cable; softening and straightening, performing a first annealing treatment and a second annealing treatment on the cable in sequence, and performing a first water cooling treatment on the cable after the first annealing treatment; protection and cooling, placing the cable after step six into a nitrogen pipeline for cooling, and then performing a second water cooling treatment on the cable.