5results about How to "Avoid complicated steps" patented technology

The utility model provides a wear-resistant rubber covered roller for a printing machine, relates to the technical field of rubber covered rollers for printing machines, and solves the problems that printing parts outside the rubber covered roller can be replaced in order to ensure the printing quality, but the printing parts of a common rubber covered roller are difficult to replace. In the prior art, the rubber roller generally does not have a good stable structure to assist the connection stability between the rubber roller and a printing part, so that the printing quality is influenced due to looseness between the printing part and the rubber roller. A wear-resistant rubber roller for a printing machine comprises a connecting shaft, a rubber roller and a rubber roller body, fixed side seats are symmetrically and fixedly mounted at the two ends of the connecting shaft; after the connecting sleeve is replaced, an operator only needs to rotate the knob to drive the limiting screw rod to rotate and push the limiting sliding block to move until the limiting teeth at the bottom of the limiting screw rod are completely clamped with the limiting teeth on the limiting block of the rubber roller main shaft, so that the fixed side seat is effectively prevented from loosening due to vibration or external force, and the long-term stability of the connecting sleeve is ensured.

This invention discloses a red pigment-producing Streptomyces spectabilis ( Streptomyces spectabilis This invention discloses a method and application for pigment extraction from *Streptomyces spectinomyces* S-13. The method involves fermenting *Streptomyces spectinomyces* S-13 with the addition of a surfactant to extract the pigment. This method releases intracellular pigments into the fermentation broth, significantly increasing pigment yield and simplifying the extraction and purification process. The red pigment produced by *Streptomyces spectinomyces* S-13 exhibits excellent stability, antioxidant activity, and antibacterial effects, making it suitable for applications in the printing and dyeing industry. The pigment extraction method described in this invention offers advantages such as short production cycle, low cost, safety, and environmental friendliness, overcoming the limitations of traditional microbial pigment production processes, including high extraction difficulty, low yield, and limited applicability.

This invention relates to a dual-modal flexible temperature-strain sensor and its fabrication method. The sensor achieves efficient detection of temperature and strain signals by combining direct ink writing and screen printing processes. The sensor features a unique design, comprising a rigid substrate and a flexible substrate, housing a thermal resistance temperature sensor and a piezoresistive strain sensor respectively, ensuring effective separation and accurate measurement of temperature and strain signals. The use of flexible materials and a FA-BP neural network algorithm based on an improved firefly algorithm enhances stability and measurement accuracy under varying environments. Furthermore, the sensor can still operate normally at high temperatures, outperforming common flexible thin-film materials on the market. This sensor demonstrates significant application potential in smart wearable devices, health monitoring, and industrial automation, providing a new solution for achieving high-precision and high-stability temperature and strain monitoring.

The application belongs to the technical field of silver-containing waste electronic and electrical equipment recycling, and particularly relates to a leaching agent for waste electronic and electrical equipment recycling, a preparation method and a silver leaching and recycling method. The leaching agent is trioctylmethylammonium triiodide [N 1888 ][I3], the trioctylmethylammonium triiodide [N 1888 ][I3] has good stability and low viscosity, does not need to be diluted by toxic organic solvents, the leaching agent recycles metals through oxidation and reduction, realizes high leaching efficiency under low-temperature stirring conditions, and avoids the use of acid or corrosive reagents and high energy consumption.

The invention belongs to the technical field of lithium ion battery electrode materials, and particularly discloses a three-dimensional conductive network graphene LFP composite material and a preparation method and application thereof.The preparation method comprises the following steps that S101, carbon-coated lithium iron phosphate is prepared, specifically, lithium carbonate, iron phosphate and glucose are mixed, dispersed and dried, first-stage heating and heat preservation are conducted, and carbon-coated lithium iron phosphate is obtained; carrying out second-stage heating and heat preservation; s102, preparing reduced graphene oxide subjected to flash Joule heat treatment; and S103, constructing a three-dimensional conductive network composite material: mixing and drying the carbon-coated lithium iron phosphate and the reduced graphene oxide, loading the mixture into a Joule thermal reaction device for vacuum heating, and cooling. By adopting the graphene LFP composite material with the three-dimensional conductive network as well as the preparation method and the application, the problems that an existing lithium iron phosphate material is poor in conductivity, slow in lithium ion diffusion, insufficient in cycling stability under high magnification and the like are solved, and a lithium ion battery positive electrode material with excellent electrochemical performance is obtained.