7results about How to "Radiation resistant" patented technology

The invention relates to the technical field of cables, in particular to an intense-radiation-resistant nuclear power station reactor top cable and a preparation method thereof. The preparation method comprises the following steps: mixing ethylene propylene diene monomer, an ethylene-vinyl acetate copolymer, chlorinated polyethylene, modified carbon black, white carbon black, paraffin, an irradiation-resistant auxiliary agent, stearic acid, zinc oxide, montmorillonite, an anti-aging agent and an ultraviolet light absorber, and discharging rubber to obtain a rubber material; uniformly mixing the rubber material with a cross-linking sensitizer, sulfur and an accelerant, and performing open milling to obtain a rubber compound; and carrying out irradiation vulcanization on the rubber compound to obtain the protective sleeve material. And a protective sleeve material is extruded on the outer side of the insulating layer to form a sheath layer, so that the intense-radiation-resistant reactor top cable for the nuclear power station is obtained, and the intense-radiation-resistant reactor top cable for the nuclear power station has stable and efficient radiation resistance, aging resistance, wear resistance, tensile resistance, tear resistance and flame retardance, and fully meets the use requirements of the reactor top cable for the nuclear power station.

The invention discloses an epoxy resin coating based on a fluorine-containing alternating polymer and a preparation method thereof, and the preparation method comprises the following steps: carrying out polymerization reaction on alpha, omega-non-conjugated diene containing a benzene ring structure and alpha, omega-diiodo perfluoroalkane in the presence of a catalyst and an organic solvent to obtain the fluorine-containing alternating polymer; the surface of a base material is coated with a composite coating obtained by dispersing the fluorine-containing alternating polymer, epoxy resin, a curing agent and auxiliaries in a solvent, and the epoxy resin coating based on the fluorine-containing alternating polymer is obtained after curing treatment. According to the invention, the excellent strong acid resistance and strong gamma ray irradiation resistance of the coating can be synchronously realized through the single-component modifier (fluorine-containing alternating polymer), meanwhile, the mechanical property of the coating is guaranteed, and the service cycle of the coating is remarkably prolonged.

The application belongs to the technical field of special robots, and particularly relates to a high-integration anti-radiation main-backup redundant collaborative robot joint module, which solves the problem that a collaborative robot joint module cannot normally serve due to various radiation effects caused by ray ionization in a nuclear radiation environment; the joint module is composed of a module integrated by a mechanical structure and a redundant comprehensive electronic circuit system; the redundant comprehensive electronic circuit system comprises a low-voltage power supply system, a servo driving system, a communication system, a sensing and perceiving system, an MCU control system and a constant temperature system, and all of them are integrated with main-backup function modules; the main-backup function modules work independently; the MCU control system detects fault signals of the main-backup modules of each system, and controls automatic switching of the main-backup function modules in each system; the redundant comprehensive electronic circuit system of the application is highly integrated and mechanically and electrically assembled with the mechanical structure inside a joint module shell; the shell is made of radiation-resistant lightweight material, and each system inside the joint has high-integration redundancy, radiation resistance and independence.

The invention discloses an anti-radiation brick and a preparation method thereof, and belongs to the technical field of anti-radiation materials. The anti-radiation brick provided by the invention comprises the following raw materials in parts by mass: 15-25 parts of residual solid phase after thermal desorption utilization of natural gas extraction oily sludge, 55-65 parts of mineral material, 5-30 parts of carbonaceous fuel and 0.5-1.5 parts of binder, the anti-radiation brick retains barite in the residual solid phase, so that the brick body has anti-radiation performance, and compared with concrete with the same barite addition amount, the anti-radiation brick has the advantages that the anti-radiation effect is good; the method has excellent application prospects, consumes industrial solid waste, reduces solid waste stockpiling and landfill land occupation, reduces barite purchase cost, reduces resource waste of secondary transfer after barite recovery, achieves waste recycling and makes a contribution to environmental protection.

This invention provides a small-sized thermistor for flexible solar panel temperature monitoring, belonging to the field of electronic temperature sensing element technology. It includes an aluminum alloy shell; a negative temperature coefficient (NTC) thermistor ceramic body with silver electrodes printed at both ends; the NTC thermistor ceramic body encapsulated within the aluminum alloy shell; two leads, each with one end soldered to a silver electrode and the other end extending from the aluminum alloy shell; a low-temperature resistant protective resin encapsulation layer encapsulating the solder joint between the leads and the silver electrodes; and a low-temperature resistant potting resin encapsulation layer encapsulated within the aluminum alloy shell. This small-sized thermistor for flexible solar panel temperature monitoring features extremely small size and light weight, enabling temperature measurement over a wide range from -100℃ to 120℃. It is compatible with various satellite flexible solar panel substrates and also possesses advantages such as radiation resistance, strong high and low temperature resistance, and a stable encapsulation structure.

This utility model relates to the field of vacuum coating technology and discloses an observation device and a coating system. The observation device includes a housing, an observation unit, and a blocking unit. By setting the housing, the observation unit, and the blocking unit, the service life of the observation structure can be extended. This allows for the replacement of the observation structure or the second light-transmitting element in the observation unit while performing routine maintenance on the component to be connected. This eliminates the need for multiple shutdowns of the component to be connected to replace the observation structure or the second light-transmitting element during the period between start-up and routine maintenance, as is done in related technologies. The observation device of this utility model can increase the working time of the component to be connected, thereby achieving the technical effects of improving the working efficiency of the component to be connected and saving the usage cost of the component to be connected.

The invention discloses taurine low-sodium potassium-rich salt and a preparation method, and belongs to the technical field of low-sodium potassium-rich salt, and the taurine low-sodium potassium-rich salt comprises the following components in percentage by mass: 65.0-80.0% of sodium chloride, 20.0-35.0% of potassium chloride, 6% of taurine, 0.8% of water, 0.1% of water insoluble substances and 0.25% of iodine. The preparation method comprises the following steps: S1, sequentially performing crushing, drying, screening and color sorting on the raw material salt; s2, mixing the qualified raw material salt with edible potassium chloride; s3, mixing the semi-finished salt with a potassium iodate solution and a taurine solution; s4, performing color sorting on the taurine low-sodium potassium-rich salt; and S5, detecting the taurine and whiteness of the finished salt. According to the taurine low-sodium potassium-rich salt, the taurine with the effects of resisting aging, preventing cancer, resisting radiation, preventing osteoporosis and the like is added, so that the aims of resisting aging, preventing hypertension, coronary heart disease and stroke are fulfilled, and the taurine low-sodium potassium-rich salt with the multiple effects of resisting aging, preventing cancer, resisting radiation, preventing osteoporosis and the like is obtained.