36results about How to "Excellent creep properties" patented technology

The invention concerns a mixture comprising by weight, the total being 100%, 1 to 100% if a polyamide block copolymer consisting of a basic polyolefin chain and on an average at least a polyamide graft wherein: the grafts are fixed to the basic chain by the radicals of an unsaturated monomer (X) having a function capable of reacting with a polyamide with amine terminal, the radicals of the unsaturated monomer (X) are fixed to the basic chain by grafting or copolymerization from its double bond; 99 to 0% of a flexible polyolefin with elastic modulus in flexure less than 50 MPa at 23° C. and having a crystalline melting point ranging between 60° C. and 100° C. Said mixtures are useful for making films, tanks, geomembrane protective fabrics produced by extrusion, products obtained by calendering, thermocladding/forming, protective films for electric cables and skins using slush molding technique.

Nano-structured interconnect formation and a reworkable bonding process using solder films. Large area fabrication of nano-structured interconnects is demonstrated at a very fine pitch. This technology can be used for pushing the limits of current flip chip bonding in terms of pitch, number of I/Os, superior combination of electrical and mechanical properties as well as reworkability. Sol-gel and electroless processes were developed to demonstrate film bonding interfaces between metallic pads and nano interconnects. Solution-derived nano-solder technology is an attractive low-cost method for several applications such as MEMS hermetic packaging, compliant interconnect bonding and bump-less nano-interconnects.

The invention discloses a belt conveyor based multi-material belt weighing system, which comprises a belt conveyor and a plurality of feed inlets above the belt conveyor. The belt conveyor comprises a plurality of weighing devices for metering materials, a speed measuring sensor, a main drive motor and an integrating control instrument, wherein each weighing device comprises a metering roller and two weighing sensors; and the weighing sensors transmit weight signals to the integrating control instrument. Different or same materials are filled through the plurality of feed inlets; the plurality of weighing devices are arranged in front of the running direction of a belt respectively; and the integrating control instrument meters the instantaneous flow respectively so as to realize the continuous and accumulated multi-material weighing or the quantitative-control continuous and accumulated multi-material weighing on one belt conveyor.

The invention provides lead-free tin-based solder for a solar photovoltaic module. The lead-free tin-based solder comprises, by mass, stibium 0.05 percent-0.15 percent, silver 0.01 percent-0.05 percent, copper 0.1 percent-0.4 percent, indium 0.01 percent-0.05 percent, bismuth 0.2 percent-0.5 percent, gallium 0.06 percent-0.10 percent, phosphorus 0.02 percent-0.09 percent and the balance tin and inevitable impurities. The invention further provides a manufacturing method of the lead-free tin-based solder. The manufacturing method comprises the step that stibium, silver, copper, indium, bismuth, gallium, tin and phosphorus are placed into a smelting furnace according to the mass percentage and are smelted in an inert atmosphere or a vacuum condition, and the lead-free tin-based solder for the solar photovoltaic module is obtained. According to the lead-free tin-based solder for the solar photovoltaic module, melting temperature is low, surface gloss is good, surface oxidation resistance is high, wetting performance is good, and welding quality is superior. Besides, the lead-free tin-based solder is economical, environmentally friendly and free of threat to human health, thereby being applicable to large-scale industrial production.

A magnesium based alloy consisting of, by weight: 2-5% rare earth elements, wherein the alloy contains lanthanum and cerium as rare earth elements and the lanthanum content is greater than the cerium content; 0.2-0.8% zinc; 0-0.15% aluminium; 0-0.5% yttrium or gadolinium; 0-0.2% zirconium, 0-0.3% manganese; 0-0.1% calcium; 0-25 ppm beryllium; and the remainder being magnesium except for incidental impurities.

Described herein are composite compositions and methods for making such compositions. The composition includes or is the reaction product of a cellulosic material, an organic component, and a thermoplastic. Some useful organic components include a silane-containing polymer. Some of the compositions have improved physical properties such as tensile properties, improved strength, and reduced water absorption.

The invention discloses a high-melting-point environment-friendly superfine solder wire applied to automatic welding and a preparation method thereof. The high-melting-point environment-friendly superfine solder wire comprises 96.1%-98.0% of tin alloy and 2.0%-3.9% of soldering flux, wherein the tin alloy is prepared from tin, silver, copper, indium, cerium, vanadium and yttrium; the melting pointof added trace element vanadium is 1890 +/-10 DEG C, the added trace element vanadium belongs to high-melting-point rare metal, the heat resistance of the tin alloy can be enhanced, meanwhile, the abrasion resistance and bursting resistance of the solder wire are extremely good, the strength, hardness and heat resistance of the tin alloy can be obviously improved through adding yttrium, the melting point of the solder wire is increased, and meanwhile, the oxidation resistance and ductility of the tin alloy are enhanced; and the added cerium can change structure of a solder, thereby refining grains, reducing solder joint bridges, changing the surface wettability of the tin alloy, and enhancing the creep property and tensile property. The solder wire is high in melting point, excellent in tensile strength, free of lead and environmentally friendly, and when the solder wire is applied to the high-end application fields of intelligent mechanical arm welding and the like, high weldabilityand lead-free environmental protection development of products are achieved.

The invention belongs to the technical field of preparation of heat conduction materials, and discloses a preparation method of a heat-conducting gasket with high normal heat conductivity and high elasticity. The preparation method comprises the following steps: (1) with a graphite film or a graphene film as a filler, carrying out plasma modification to obtain a first modified graphite film or graphene film; (2) hydroxylating the first modified graphite film or graphene film, and grafting a hydrolyzed coupling agent to obtain a second modified graphite film or graphene film; (3) coating the surface of the second modified graphite film or graphene film with polyolefin, carrying out pre-curing treatment, and conducting stacking by adopting a laminating process to obtain a graphite film or graphene film/polyolefin multi-layer composite structure formed body; and (4) after hot-pressing treatment, conducting cutting along a direction vertical to the upper surface and the lower surface of the multi-layer composite structure formed body to obtain the heat-conducting gasket. The obtained heat-conducting gasket is good in heat-conducting property, and when a filler content reaches 94.3%, the heat conductivity of the gasket reaches 726.1 W/(m.K).

The invention discloses a high-weldability environment-friendly superfine solder wire for intelligent manipulator welding and a preparation method thereof. The superfine solder wire comprises 96.9 wt%-98.1 wt% of solder alloy and 1.9 wt%-3.1 wt% of scaling powder, wherein the solder alloy comprises the components of tin, silver, copper, molybdenum, cerium, tellurium and lutetium, by adding the cerium, the structure of the solder can be changed, so that crystal grains are refined, solder joint bridges are reduced, the surface wettability of the solder alloy is changed, and the creep property and the tensile property are improved; the addition of tellurium can improve the corrosion resistance, the wear resistance and the strength of the material, the tensile strength of the solder can be improved, the generation of tin whiskers can be prevented; lutetium has good electrical conductivity and ductility and extremely high activity, and is excellent in effect of improving electric heating performance and oxidation resistance in soldering tin alloy powder, so that tensile strength and toughness of the solder are improved, the wettability of solder wires is good, the tensile strength is excellent, and lead-free and environment-friendly effects are achieved. The superfine solder wire has the advantages of being high in weldability and not prone to core breakage, and high weldability andlead-free environment-friendly development of products are achieved when the superfine solder wire is applied to the high-end application field of intelligent manipulator welding and the like.

A polymer composition with a polymer of ethylene with a comonomer with silane group(s) containing units and an additive that is an organic compound with at least one amine moiety that has a gel content less than 10 wt % after 7 days at ambient conditions and a gel content of at least 15 wt % gel content after 14 days at 100° C. The film can be used in a laminate.

Disclosed is an anode for a molten carbonate fuel cell (MCFC) having improved creep property by adding an additive for imparting creep resistance to nickel-aluminum alloy and nickel as materials for an anode. Improved sintering property, creep property and increased mechanical strength of a molten carbonate fuel cell may be obtained accordingly.

As the test temperature of a strength test for a sprinkler head is close to the melting temperature of a solder alloy of a thermal-induction decomposition part for the sprinkler head, thus a high-temperature area working on an automatic sprinkler is required to have creeping properties. However, compared with the past Pb or Cd sprinkler head, the sprinkler head not made of a Pb or Cd In-base alloy can not reach the creeping properties of the high-temperature area working on the automatic sprinkler, and sometimes the endurance test is unqualified. In the invention, alloy for a thermo-sensitive material fused at the temperature of 70-75 DEG C of the thermal-induction decomposition part for the sprinkler head comprises the following components by mass percent: 0.1-2.0% of Sn, 31-37% of Bi, the balance of In-base alloy; and alloy for a thermo-sensitive material fused at the temperature of 90-95 DEG C comprises the following components by mass percent: 0.05-0.4% of Zn, 43-55% of Bi and the balance of In-base alloy.

The present disclosure relates to a Ni-based superalloy with excellent oxidation resistance and creep properties, which is suitable for parts of energy plants and chemical plants under a corrosive oxidative/reductive atmosphere, which stainless steel cannot withstand, through adjustment of alloy components and control of process conditions and a method of manufacturing the same. The Ni-based superalloy includes: chromium (Cr): 20˜26 wt %, tungsten (W): 13˜17 wt %, molybdenum (Mo): 1˜5 wt %, manganese (Mn): 0.1˜1.0 wt %, silicon (Si): 0.1˜0.6 wt %, aluminum (Al): 0.1˜1.0 wt %, lanthanum (La): 0.01˜0.06 wt %, carbon (C): 0.01˜0.20 wt %, and the balance of nickel (Ni) and unavoidable impurities.

A fixation agent including at least one polyamine and at least one acidification agent. The quality and staining of tissue samples or tissue sections that have not been fixed with formalin is improved, with higher brilliance and color stability of the stain, allowing the tissue to be cut with a better quality without artifacts.

The present invention relates to a method for producing a polyacetal resin composition. [Problem] To provide a method for producing a polyacetal resin composition having excellent mechanical properties such as tensile strength, tensile elongation, flexural strength, and impact resistance, particularly excellent creep properties. [Solution] A method for producing a polyacetal resin composition, wherein (B) a glass-based inorganic filler obtained by surface treatment with a silane coupling agent is added to 100 parts by mass of (A) polyacetal resin 1 mass part to 100 mass parts of the material, (C) 0.0001 mass part to 0.5 mass part of at least one halide selected from magnesium halide and ammonium halide, and (D) a triazine derivative having a nitrogen-containing functional group 0.002 mass parts or more and 10 mass parts or less are melt-kneaded and manufactured.

To provide a forged aluminum alloy excellent in creep characteristics and a manufacturing method for the forged aluminum alloy.A forged aluminum alloy contains Si: 0.10-0.25 mass %, Fe: 0.9-1.3 mass %, Cu: 1.9-2.7 mass %, Mg: 1.3-1.8 mass %, Zn: 0.10 mass % or less, Ni: 0.9-1.2 mass %, and Ti: 0.01-0.1 mass %, with the balance being Al and inevitable impurities, in which the total content of Fe and Ni is 2.2 mass % or less, the total content of Mn, Cr, and Zr is 0.20 mass % or less, the average equivalent circle diameter of an intermetallic compound is 4.5 [mu]m or less, and variation of distance between the intermetallic compounds in the ST direction is 2.3 or less.

The invention is a polymer composition for film layer comprising less than 50 wt % of a copolymer of ethylene with silane group(s) containing units and at least 50 wt % of a thermoplastic polyolefine free from silane group(s) wherein the polymer composition has creep of less than 1 mm at 90° C., and an adhesion above 20 N/cm. The invention relates to a laminated article with at least one film layer of the polymer composition and a substrate.