10results about How to "Strong hardness" patented technology

The application discloses a method for synergistically inducing calcium carbonate deposition and solidification by bacillus subtilis and sphaerotilus paratus. The method comprises the following steps: 1) adding a composite bacterial solution containing bacillus subtilis and sphaerotilus paratus to treat loose particles; and 2) adding a calcification solution to post-treat the treated loose particles. The application also provides bacillus subtilis with a preservation number of CCTCC NO: M 20231896. The composite bacterial solution containing bacillus subtilis and sphaerotilus paratus synergistically promotes the induced calcification efficiency of microorganisms, and improves the cementation performance, toughness and hardness of the calcification material.

The invention relates to a titanium earphone, the liquid titanium earphone comprises a sound production part, a fixing part and a connecting part, the sound production part is arranged in the conchae of a wearer, the fixing part is attached to the back side of the ear of the wearer, the sound production part and the fixing part are connected to the two ends of the connecting part respectively, the connecting part is made of a titanium material, and the connecting part is made of a titanium material. Therefore, the overall weight of the titanium earphone is reduced, a wearer does not feel heavy when wearing the titanium earphone, and the titanium earphone is more comfortable to wear and suitable for long-time wearing.

This application relates to the field of circuit board manufacturing technology, and discloses a method for manufacturing SMT carrier markings and an SMT carrier. The method for manufacturing SMT carrier markings includes: providing an SMT carrier with a marking area; performing an oxidation treatment on the SMT carrier to cover its surface with an oxide layer; using a first laser to engrave the oxide layer within the marking area, making the marking area white; and using a second laser to further engrave the oxide layer within the marking area to form a marking, which is black. The above-described method for manufacturing SMT carrier markings optimizes the structure of the prepared markings, creating a strong contrast between the marking and the background color of the marking area, making them easily identifiable; furthermore, the white background color of the marking area reflects radiation and lowers the surface temperature of the carrier, making it less prone to discoloration and improving recognition speed. The markings prepared by this application have strong anti-aging properties, increased strength and hardness, and are less prone to wear.

The invention discloses a lithium battery positive plate stripping and recycling method, and belongs to the technical field of battery recycling. The recycling method comprises the following steps: shearing the waste ternary positive plate to obtain first positive plate fragments; immersing the first positive plate fragments into a solution containing a monomer and an initiator, and enabling the solution to completely permeate into the first positive plate fragments to obtain second positive plate fragments; after in-situ polymerization, carrying out mechanical crushing and sorting to respectively obtain positive electrode black powder and a positive electrode current collector; wherein the waste ternary positive plate comprises a positive current collector and a positive material layer arranged on at least one surface of the positive current collector. According to the invention, the separation of the positive electrode active material layer and the positive electrode current collector is realized through the combination of interface in-situ embrittlement and mechanical crushing, and the problem that the recovery of the positive electrode material cannot meet the requirements of high yield, high purity and low damage at the same time is solved.

This application provides a method for manufacturing a sand-fixing mesh protection belt using salt lake brine, a construction method for a sand-fixing protection system, and a road sand-fixing protection system, relating to the field of environmental governance technology. The manufacturing method involves mixing brine and sand particles at a weight ratio of 1:5 to 1:8 to prepare a first brine slurry; using multiple sand-fixing boards with receiving holes to form a sand-fixing molding mold with a pouring space; pouring the first brine slurry into the pouring space, filling the pouring space and receiving holes; demolding to obtain the brine sand-fixing board filled with the first brine slurry; and splicing multiple brine sand-fixing boards to form a sand-fixing mesh protection belt. This sand-fixing protection system utilizes salt lake brine for sand prevention and fixation in a site-specific manner, achieving good results while being environmentally friendly and cost-effective.

The invention provides a laser cladding wear-resistant coating for the surface of a furnace roller and a preparation method of the laser cladding wear-resistant coating, and belongs to the field of coatings. The preparation method comprises the following steps: preheating a pretreated furnace roller matrix to 400-500 DEG C; on the basis of a laser gradient cladding method, a bottom coating, a middle coating and a surface coating are sequentially deposited on the surface of a furnace roller base body, slow cooling is conducted under the protective atmosphere, and a composite coating is obtained; the wear-resistant coating is obtained through strengthening treatment; the raw materials of the bottom coating comprise first cobalt-based alloy powder and a first strengthening phase; the first strengthening phase is titanium carbide TiC; the raw materials of the middle coating comprise second cobalt-based alloy powder and a second strengthening phase; the second strengthening phase is hafnium carbide HfC or tantalum carbide TaC; the surface coating comprises the following raw materials: third cobalt-based alloy powder, a third strengthening phase and an additive; the third strengthening phase comprises hafnium carbide HfC and rare earth oxide; and the additive adopts boron carbide B4C. The prepared coating breaks through the high-temperature limit of 1400 DEG C, the high-temperature hardness and wear resistance are remarkably improved, and the problem of thermal stress cracking is solved.

The utility model relates to the technical field of carving copper molds, and discloses an improved hot concave carving copper mold which comprises an installation assembly, a replacement copper mold is arranged at the bottom of the installation assembly, the installation assembly comprises an installation block, installation screws are fixedly installed at the four corners of the top of the installation block, and a positioning groove is formed in the bottom of the installation block. The replacement copper mold comprises a mold block, the mold block is arranged in the positioning groove, a gear cavity is formed in the top end of the mounting block, a fixed gear is rotationally connected to the middle of the inner side of the gear cavity, a nut is fixedly mounted in the middle of the fixed gear, and a fixed screw is fixedly mounted in the middle of the top end of the mold block; the fixing screw rod is in threaded connection with the nut, and a carving groove is formed in the bottom of the module; according to the utility model, the material and the cost can be effectively saved, and the practical value is higher.

The utility model discloses a pseudo-classic building roof heat preservation structure which comprises a roof protection mechanism and roof tiles. The roof tiles are fixed to the upper side of the roof protection mechanism through concrete, the roof protection mechanism is composed of a concrete layer, a reinforcing plate and a heat insulation plate, the reinforcing plate adheres to the bottom end of the heat insulation plate through adhesive glue, a mildew-proof layer adheres to the bottom end of the reinforcing plate, and the concrete layer is arranged on the upper side of the roof protection mechanism. A hydrophobic layer is attached to the surface of the concrete layer, an anti-cracking net is attached to the interior of the upper end of the concrete layer, and reinforcing ribs are arranged in the concrete layer. In the using process of the roof protection mechanism, the upper side of the concrete layer is kept dry for a long time through the hydrophobic layer, the upper side of the concrete layer can be prevented from cracking through the arrangement of the anti-cracking net, the toughness of the concrete layer can be improved through the reinforcing ribs, the humidity is prevented from being large through the arrangement of the mildew-proof layer, and the service life of the roof protection mechanism is prolonged. And the bottom end of the roof protection mechanism is mildewed.

This invention provides a method for preparing a diamond / neodymium iron boron (NdFeB) composite thin film, relating to the field of thin film materials technology. The method involves chemical vapor deposition (CVD) using a carbon-containing organic gas as a carbon source. Microcrystalline diamond is grown on a single-crystal silicon substrate under high temperature and high pressure conditions in a reducing atmosphere of hydrogen. Subsequently, NdFeB and tantalum targets are sputtered onto the diamond film surface using magnetron sputtering in a high-temperature and inert argon atmosphere, resulting in a final diamond / neodymium iron boron composite thin film. This invention grows a diamond / neodymium iron boron composite thin film combining dielectric and magnetic materials through CVD and magnetron sputtering. Diamond, as a dielectric material, maintains dielectric loss capability in the terahertz band while providing a supporting substrate; the composite thin film exhibits enhanced loss in the terahertz band, effectively solving the problem of narrow absorption frequency bands in existing thin film materials.