5results about How to "Reduce thickening" patented technology

The present application relates to the technical field of metal material surface treatment, and particularly relates to a 780MPa-grade hot-dip galvanized dual-phase steel coating bonding force strengthening method, which comprises the following steps: soaking a base material in a plating solution to perform three-stage temperature rising continuous annealing, pre-oxidation, hydrogen reduction, two-stage temperature lowering, post-plating cooling, and obtaining the strengthened hot-dip galvanized dual-phase steel coating; the base material composition is as follows: C<=0.18%, Mn 1.75-2%, Si 0.35-0.45%, P 0.02-0.035%, Cr 0.35-0.45wt%, Nb 0.015-0.03%, Als 0.02-0.06%, Y 0.01-0.014%, and Nb / Y is 1.1-3, according to 100% mass percentage. The scheme solves the problems of uneven structure, poor interface bonding force, poor continuity of the inhibition layer, unstable corrosion resistance, and poor surface of the existing hot-dip galvanized DP780 steel coating.

This application discloses a charging device, a charging method for a battery pack, and a charging system, including: a power input port for connecting to an external power source; a power output port for connecting to the battery pack to charge it; and a charging control unit disposed between the power input port and the power output port, for at least controlling the electrical energy output from the power output port. The charging control unit is configured to periodically output pulsed electrical energy to charge the battery pack; wherein the frequency of the pulsed electrical energy is greater than or equal to 1 Hz. Compared to constant current charging, this method can reduce battery pack polarization, decrease battery pack impedance and reduce loss of active materials, thereby delaying battery pack aging, extending battery pack lifespan, and improving long-term discharge performance. By setting the frequency of the pulsed electrical energy to be greater than or equal to 1 Hz, the polarization of the battery pack can be further reduced through a larger pulse frequency, further extending the battery pack lifespan.

The application discloses a kind of wood board tooth interface transposition gluing method and equipment, its method is the tooth structure of first wood board can be glued on the backward gluing position of gluing device, and gluing device transposes to forward gluing position, and again can make the tooth structure of second wood board be glued on the forward gluing position of gluing device.The equipment includes: first conveying device, tooth cutting device, second conveying device, gluing device, pressing device, third conveying device, shearing device and fourth conveying device, wood board enters from first conveying device, is cut out tooth-shaped interface in tooth cutting device, is glued in gluing device, then enters pressing device and is connected, shearing device is cut according to need Wood board, conveying device cooperates with each other, and the wood board that enters is conveyed to complete tooth cutting, gluing, connection, shearing and the output equipment of the spliced wood board, its interface gluing is uniform, equipment cost is low, reduces equipment failure and reduces production defective rate, and improves production efficiency.

The invention discloses a polypeptide and application thereof, and belongs to the technical field of biological medicine. The amino acid sequence of the polypeptide is as shown in SEQ ID NO: 1. The preparation method of the polypeptide adopts a conventional chemical solid-phase synthesis or recombinant expression mode. The polypeptide is applied to preparation of drugs for improving psoriasis. The polypeptide disclosed by the invention can obviously inhibit the inflammatory reaction of HaCaT cells under the induction of M5 in vitro, and has good anti-inflammatory activity; in-vivo experiments show that the polypeptide can effectively improve mouse psoriasis-like symptoms induced by imiquimod, the thickening degree of epidermal spine layers of mice in a polypeptide treatment group is remarkably reduced, the number of T cells at skin lesion parts is remarkably reduced, and the infiltration degree is remarkably reduced, so that the polypeptide can inhibit epidermal spine layer hypertrophy and reduce T cell infiltration, and the mouse psoriasis-like symptoms can be effectively improved. The histopathological characteristics of the psoriasis are improved. In addition, the polypeptide has good safety and application potential, and a new candidate molecule is provided for clinical treatment of psoriasis and research and development of novel drugs.

This invention relates to the field of conductive materials, and more specifically, to an MXene-Ti3C2T x The preparation method, composite material, and application of the conductive agent include the following steps: Ti3AlC2 MAX phase ceramic powder is added to an etching solution and reacted at 0–60°C for 5–48 hours. The mixture is washed with water until neutral, centrifuged, and a slurry is obtained. A polar organic solvent is added to the slurry, and the mixture is ultrasonically treated to obtain a suspension. The suspension is freeze-dried to obtain the conductive agent. This conductive agent utilizes metallic conductive two-dimensional MXene to directly construct a conductive framework, combining the functions of conductive support and interface regulation. The MXene sheets not only provide electron transport but also improve the interfacial compatibility between the silicon anode and the solid electrolyte through their flexibility and surface functional groups, suppressing interfacial cracking and side reactions.