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5863 results about "Heat stability" patented technology

Heat stability is defined as heat coagulation time at 140°C of the reconstituted LH or MH NDM and SSMP samples. The entire experiment was replicated 3 times at unadjusted pH values and 2 times at adjusted pH values.

Selected processing for non-equilibrium light alloys and products

A new class of light or reactive elements and monophase alpha'-matrix magnesium- and aluminum-based alloys with superior engineering properties, for the latter being based on a homogeneous solute distribution or a corrosion-resistant and metallic shiny surface withstanding aqueous and saline environments and resulting from the control during synthesis of atomic structure over microstructure to net shape of the final product, said alpha'-matrix being retained upon conversion into a cast or wrought form. The manufacture of the materials relies on the control of deposition temperature and in-vacuum consolidation during vapor deposition, on maximized heat transfer or casting pressure during all-liquid processing and on controlled friction and shock power during solid state alloying using a mechanical milling technique. The alloy synthesis is followed by extrusion, rolling, forging, drawing and superplastic forming for which the conditions of mechanical working, thermal exposure and time to transfer corresponding metastable alpha'-matrix phases and microstructure into product form depend on thermal stability and transformation behavior at higher temperatures of said light alloy as well as on the defects inherent to a specific alloy synthesis employed. Alloying additions to the resulting alpha'-monophase matrix include 0.1 to 40 wt. % metalloids or light rare earth or early transition or simple or heavy rare earth metals or a combination thereof. The eventually more complex light alloys are designed to retain the low density and to improve damage tolerance of corresponding base metals and may include an artificial aging upon thermomechanical processing with or without solid solution heat and quench and annealing treatment for a controlled volume fraction and size of solid state precipitates to reinforce alloy film, layer or bulk and resulting surface qualities. Novel processes are employed to spur production and productivity for the new materials.

Novel heat-resisting titanium alloy and processing and manufacturing method and application thereof

ActiveCN104018027AAvoid uniformityAvoid forging crackingHeat stabilityTitanium
The invention belongs to the field of titanium-based alloys, and particularly relates to a novel heat-resisting titanium alloy and a processing and manufacturing method and application thereof. The processing and manufacturing method comprises the composition elements of alloy components, smelting, heat processing, heat treatment and the like, wherein the alloy components are as follows (in percentage by weight): 5.4%-6.3% of Al, 3.0%-5.0% of Sn, 2.5%-6.4% of Zr, 0.0%-0.96% of Mo, 0.25%-0.5% of Si, 0.2%-0.5% of Nb, 0.3%-3.4% of Ta, 0.2%-1.6% of W, 0.0%-0.07% of C, less than or equal to 0.17% of O, less than or equal to 0.03% of Fe and the balance of Ti and inevitable impurity elements. The novel heat-resisting titanium alloy disclosed by the invention can obtain different matching of tensile strength, plasticity, permanence, creep strength and heat stability through the combination of different heat processing process and heat treatment processes, can be used for manufacturing parts, namely blades, coil assemblies and the like which are positioned on the high-temperature parts of an advanced aircraft engine, is used for a long time within a range of 600-650 DEG C, can also be used for manufacturing high temperature-resistant structural members, namely aerospace craft skin and the like, is used for a short time at about 700 DEG C and can be used as a material and the like used for high temperature-resistant corrosion-resistant valves of an automobile and a boiler.

Method for preparing multilayer composite membrane for secondary battery by using electrostatic spinning coating method

The invention discloses preparation of a multilayer composite membrane for a secondary battery by using an electrostatic spinning coating technology combined with a pore-forming technology, a manufacturing method of the multilayer composite membrane and the secondary battery prepared by using the membrane. The method is characterized by comprising the following steps of: (1) dissolving a high-molecular organic matter into a solvent to form a high-molecular solution; (2) adding a small-molecular organic matter and/or an inorganic nanometer material into the high-molecular solution to ensure that the small-molecular organic matter is dissolved into the high-molecular solution; dispersing an inorganic nanometer material into the high-molecular solution to form an organic/inorganic mixed solution; (3) uniformly coating the formed organic/inorganic mixed solution on at least one side of a film matrix by using the electrostatic spinning coating technology to form a composite film, and drying the composite film; and (4) extracting the small-molecular organic matter from the dried composite film to continuously dry and form the multilayer composite membrane for the secondary battery. By using the method, an inorganic complex of inorganic membranes is realized quickly and conveniently, the ionic conductivity of the lithium ion battery membrane can be improved, and the heat stability and the security of the battery are guaranteed; and the method has the advantages of being simple in operation and convenient for industrialization.

Powder coating with antibacterial function and preparation method and application thereof

The invention discloses a powder coating with an antibacterial function and a preparation method and an application thereof. The powder coating comprises the following raw materials in the parts by weight: 60-90 parts of resin, 2-40 parts of curing agent, 1.5-10 parts of antibacterial agent color concentrate, 0.5-2 parts of flatting agent, 0-4.5 parts of defoaming agent, 4-30 parts of pigments andfillers and 0-15 parts of other auxiliary agents. The powder coating provided by the invention has the functions of bacterium resistance and broad spectrum and has strong functions of sterilizing andinhibiting various bacteria and mould fungi; the heat resistant temperature of the inorganic antibacterial agent can reach 500 DEG C, and the inorganic antibacterial agent has good heat stability; and the inorganic antibacterial agent is a silver ion antibacterial agent using glass as a carrier, has good transparency and can be made into a transparent antibacterial powder coating which has the advantages of safety and wide application range. The preparation method provided by the invention has reasonable processes, strong operability and high qualified rate of the prepared finished products and can realize industrial production in a large batch.

High-temperature (800 DEG C) wear-resistant paint and preparation method thereof

The invention discloses high-temperature (800 DEG C) wear-resistant paint and a preparation method thereof. The high-temperature wear-resistant paint comprises a component 1 and a component 2, wherein the component 1 is prepared by mixing a component A and a component B; the component A in the component 1 comprises the following components: black silicon carbide, fine-grain aluminum oxide, dispersing agent, zinc oxide, modified epoxy resin, flatting agent and an auxiliary material; the component B in the component 1 comprises the following components: organic silicon modified epoxy resin, a filler, antimony trioxide, film-forming assistant and thickener; and the component 2 is curing agent and coupling agent. The high-temperature (800 DEG C) wear-resistant paint is prepared by the following steps: mixing the component A and the component B in the component 1, and curing the component 1 with the component 2. The high-temperature wear-resistant paint is prepared by compounding the double components, has excellent high temperature resistance and wear resistance, and also has the fine properties of favorable hardness, high heat stability, ductility, workability and the like. The invention also designs the method for preparing the high-temperature wear-resistant paint. The preparation method is simple and low in cost.
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