6 results about "Conversion coating" patented technology

[Problem] To provide a surface-treated steel material and a surface-treated member that exhibit excellent corrosion resistance even in soil having a depth of approximately several cm from the soil surface and containing chloride ions. [Solution] A surface-treated steel material according to the present invention comprises: a steel material that serves as a base material; a zinc plating layer that is positioned on a surface of the steel material and contains Mg, Al, and Zn; and a chemical conversion coating layer that is positioned on the surface of the zinc plating layer. The zinc plating layer is a plating layer having a chemical composition that contains, in mass%, at least 0.10% and less than 40.00% of Al and at least 0.10% and less than 15.00% of Mg, with the remainder containing impurities and at least 60.00% of Zn. The chemical conversion coating layer contains P, and the average value of the P concentration in a surface-side region of the chemical conversion coating layer is 1.1-1.5 times the average value of the P concentration in a plating-side region. The average value of the Mg concentration in a Mg-rich region is 1.2-2.0 times the average value of the Mg concentration in the zinc plating layer excluding the Mg-rich region.

The present invention relates to a coating composition for forming a UV light conversion coating for a photovoltaic cell, a UV light conversion coating prepared therefrom, a method for preparing the UV light conversion coating, and a photovoltaic cell and a photovoltaic module including the coating. The composition includes, by mass: (A) 100 parts of a polyurea precursor resin which is a mixture of a specific aspartate compound and a blocked isocyanate curing agent; (B) 0.5 to 5 parts of a UV light conversion agent; (C) 1 to 5 parts of an adhesion promoter; (D) 10 to 100 parts of an inert diluent. The light conversion coating prepared from the coating composition, when used in a photovoltaic cell or a photovoltaic module, can reduce UV band light transmittance and increase visible light wavelength transmittance, improve light conversion efficiency, and have excellent adhesion and aging resistance.

This invention relates to the field of conveying equipment technology and discloses a machine tool conveying assembly for connector cutting and processing. The assembly includes an outer frame, with a conveying device fixedly connected to the top of the outer frame. The outer frame provides an installation position, and the conveying device, mounted on the top of the outer frame, conveys connectors. A pneumatic pressure generating mechanism is located at one end of the top of the outer frame to generate and store gas. A conversion coating mechanism is located at the top of the outer frame, and a feeding mechanism is located at the middle of the top of the outer frame. Multiple solid lubricating rods are internally arranged in the conversion coating mechanism and the feeding mechanism. The feeding mechanism automatically replenishes the lubricating rods, powered by the kinetic energy recovery from the conveying device's own operation. Therefore, no additional power source or control system is required, reducing equipment costs. Furthermore, the simple structure results in low maintenance costs, further reducing overall maintenance expenses.

The utility model provides a kind of solar phase change heat storage device for sunlight greenhouse and the sunlight greenhouse comprising it, it is related to sunlight greenhouse heating technical field, solve the technical problem that the temperature in northern severe cold area sunlight greenhouse is low and is not conducive to crop growth.The solar phase change heat storage device for sunlight greenhouse, including phase change heat storage plate and solar light heat conversion coating;Phase change heat storage plate is set in sunlight greenhouse rear side, and towards sunlight greenhouse front side;Solar light heat conversion coating is set in the front side surface of phase change heat storage plate;Phase change heat storage plate includes base material and phase change material filled in base material;Base material is made of perlite;Solar light heat conversion coating is made of graphene coating;Phase change material is made of paraffin wax.The utility model is by collecting solar heat and shed air heat and carries out phase change heat storage, to night in temperature self-feeding effect and carries out heat release, provides heat for sunlight greenhouse air, maintains sunlight greenhouse air temperature.

This invention relates to the field of cyanide-free conversion coating technology for aluminum alloys, and particularly to a synergistic multi-component conversion liquid, its preparation method, and its application. The synergistic multi-component conversion liquid provided by this invention utilizes the synergistic effect between specific components, combined with specific content limitations, to achieve a synergistic multi-component conversion film with excellent bonding performance. It not only has strong bonding strength with aluminum-based materials, but also strong bonding strength with subsequent coatings when an existing coating is present, resulting in lower porosity and better protection of the aluminum-based materials. The synergistic multi-component conversion liquid provided by this invention achieves the above effects with a relatively small dosage, thus making significant progress in lightweighting. The aluminum-based composite material provided by this invention uses aluminum-based materials as a matrix, and the synergistic multi-component conversion liquid of the above scheme forms a synergistic multi-component conversion film on the surface of the aluminum-based material. The interlayer bonding strength is strong, preventing corrosion of the aluminum-based material and significantly improving corrosion resistance.

The application is a kind of O3 type sodium ion battery positive electrode material of reducing method induced residual base conversion. The chemical formula of the positive electrode material is Na 1+x Ni 0.33 Fe 0.33 Mn 0.33 P x O 2+2x In the preparation, the selected reducing acid salt, including but not limited to hypophosphite or bisulfite, is used as a residual base eliminator and a reducing agent, and through grinding and calcination, the mechanism of acid-base neutralization reaction and redox reaction is used to realize the functions of residual base conversion coating and surface coordination environment adjustment. The first coulombic efficiency of the battery obtained by the application is as high as 94%, the voltage hysteresis is greatly reduced, the capacity retention rate after 300 cycles at 1C is increased from 38% to 84%, and a new generation of coating scheme with great potential for scaling is provided for layered positive electrode materials.