8results about How to "Reduce brittleness" patented technology

This invention discloses a high-performance vitrified microsphere composite polystyrene particle insulation board and its preparation method, comprising the following steps: premixing hydrophobic vitrified microspheres and expandable polystyrene particles coated with expanded graphite at a mass ratio of (2.5~4):1 to obtain composite lightweight aggregate. The insulation board prepared by this invention, with a dry density of only 184-193 kg / m³, exhibits a compressive strength as high as 0.275-0.302 MPa, significantly superior to traditional inorganic insulation boards (0.15-0.25 MPa) and organic insulation boards (0.10-0.15 MPa); its thermal conductivity is as low as 0.034-0.041 W / (m·K), and its insulation efficiency is more than 40% higher than that of traditional inorganic materials, while also possessing Class A fire safety performance; furthermore, the process is simple and controllable, with an industrial solid waste utilization rate of up to 70%, demonstrating significant economic benefits and environmental value, and possessing broad prospects for widespread application.

This invention relates to a nutritional composition for promoting bone development and its applications. The invention provides applications of the nutritional composition or preparations comprising said nutritional composition, including: (1) preparing food products; (2) preparing health products for promoting bone development, increasing height, and / or improving bone density; (3) preparing drugs or drug compositions for promoting bone development, increasing height, increasing bone density, treating or preventing osteoporosis, and / or treating or preventing skeletal dysplasia; and (4) promoting bone development, increasing height, and / or improving bone density for non-therapeutic purposes; wherein said nutritional composition comprises medium- and long-chain triglycerides (MLCT) and 1,3-diunsaturated fatty acid-2-palmitoyltriglycerides (UPU).

This invention discloses a TIG welding method based on alternating magnetic field assistance and nickel-based alloy welding wire, belonging to the field of metal welding technology. In the nickel-based alloy welding wire of this invention, the mass ratio of La to Zr is (2~3):1. It is prepared into a nickel-based alloy welding wire for welding nickel-based alloys. During the welding process, an alternating magnetic field is applied to effectively control the microstructure during the welding process, avoid the formation of continuous network films of carbides at the grain boundaries, thereby reducing grain boundary brittleness and significantly improving the mechanical properties and crack resistance of the welded joint. It is suitable for welding and manufacturing high-temperature components for aerospace and ultra-supercritical power plant boilers.

This invention relates to a biodegradable anti-stick film and its preparation method. The biodegradable anti-stick film comprises a top layer, a middle layer, and a bottom layer arranged sequentially. The top layer comprises polyadipate, polylactic acid, polybutylene butyrate, a compatibilizer, a chain extender, and a dual-antibiotic masterbatch. The middle layer comprises polyadipate, polyglycolic acid, polybutylene butyrate, a compatibilizer, a chain extender, and a dual-antibiotic masterbatch. The bottom layer comprises polyadipate, polylactic acid, polybutylene butyrate, a compatibilizer, a chain extender, and a dual-antibiotic masterbatch. Its advantages lie in the following: adding a compatibilizer to each layer improves the compatibility of the raw materials, thereby reducing the brittleness of the biodegradable anti-stick film; adding PBAT-carrier dual-antibiotic masterbatch to each layer controls the degradation rate of the biodegradable anti-stick film; adjusting the blending ratio of each layer component improves the mechanical properties, processing flowability, and biodegradability of the biodegradable anti-stick film; and coating the top layer with a UV-curable release coating ensures the application requirements of the biodegradable anti-stick film.

The application provides an acid core wire and a preparation method and application thereof, and particularly relates to the technical field of welding materials. The core wire comprises a steel belt sheath and a core filled in the steel belt sheath. The core comprises the following components in percentage of mass: 35-50% of rutile, 2.5-5% of zircon sand, 2.5-5% of potassium feldspar, 1.5-3% of potassium fluozirconate, 1.5-3% of quartz, 15-20% of metallic manganese, 3-5% of ferrosilicon, 15-20% of nickel powder, 1-2% of cobalt powder, 1-2% of molybdenum powder, 1-2% of aluminum-zirconium alloy, 1.5-3.5% of magnesium powder, 1-2% of perovskite, and the rest is atomized iron powder. The acid core wire has good welding process, good arc stability, less spatter, good appearance of weld formation, good deslagging property, high deposition rate and deposition rate, and the weld has the characteristics of high strength, high low-temperature impact toughness and corrosion resistance, and can meet the use requirement of high-strength Q690 rack steel.

This invention discloses a universal joint and its surface hardening process, belonging to the technical field of oil and gas exploration, development, and drilling equipment. The surface hardening process of the universal joint of this invention includes the following steps: toughening and tempering treatment of the universal joint substrate; and ion nitriding and catalytic permeation treatment of the universal joint after the tempering treatment. The universal joint prepared by this invention effectively solves the surface hardening defects of screw drill bits currently on the market, greatly improving the stable service life of screw drill bit universal joints, meeting the usage requirements of high-corrosion, high-temperature, high-pressure, and complex well conditions in deep and ultra-deep oil and gas drilling, significantly improving the overall service life of screw drill bits, increasing drilling efficiency, and enhancing drilling production safety.

The utility model discloses a cutting device for plastic film production relates to the field of plastic film production, include: support frame, cutting knife, the cutting knife telescopic connection in support frame inside top, the receiving plate is set up in the cutting knife below, is used for receiving plastic film, wherein, the side of cutting knife is provided with first cylinder and second cylinder and rotates up and down, the plastic film is passed between first cylinder and second cylinder, a plurality of extension holes are opened to first cylinder outside, and a plurality of extension holes are all provided with thorn and are telescopic in the inside, in the practical operation of the utility model, when electric push rod drives thorn and extends first cylinder, can stab into the plastic film surface, and the distribution of need cutting is pre -bore, when bore is completed, using cutting knife to bore position again carries out cutting, can further improve the accuracy and efficiency of cutting, reduce the phenomenon that plastic film cutting produces sticky constantly.

This invention belongs to the field of panel shaping technology and provides a shaping and processing device for air conditioner display panels. The invention includes: a placement base for placing the air conditioner display panel to be shaped; a shaping mechanism including an upper mold base and abutting and lifting foot shaping module, the upper mold base being disposed above the placement base and capable of abutting against the placement base; two abutting and lifting foot shaping modules, respectively disposed within the upper mold base and the placement base; the abutting and lifting foot shaping module is used to shape the lifting foot of the display panel; and a heating mechanism, two heating mechanisms, respectively disposed within the placement base and on the upper mold base; the heating mechanism is used to heat the display panel. This device is not only rationally designed but also capable of shaping both planar and 3D curved display panels, improving the equipment's utilization range and meeting various shaping needs. Therefore, this device is suitable for industry promotion.