40results about How to "Excellent creep properties" patented technology

A ferritic heat-resistant steel which comprises, in wt %, 1.0 to 13 % of chromium, 0.1 to 8.0 % of cobalt, 0.01 to 0.20 % of nitrogen, 3.0 % or less of nickel, 0.01 to 0.50 % of one or more elements selected from the group consisting of vanadium, niobium, tantalum, titanium, hafnium and zirconium, which form MX type precipitates, and 0.01 % or less of carbon, as constituting elements, the balance being substantially composed of iron and inevitable impurities, and has a metal structure wherein MX type precipitates are formed over the whole of grain boundaries and the surface within grains and M23C6 type precipitates are present on grain boundaries in an area percentage of 50 % or less. The ferritic heat-resistant steel exhibits excellent creep characteristics even at a high temperature exceeding 600 DEG C.

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.

Provided is a polyester resin composition comprising a sulfonamide compound as a nucleating agent, in which polyester resin composition coloring is inhibited.The polyester resin composition according to the present invention is a polyester resin composition comprising, with respect to 100 parts by mass of a polyester resin, 0.01 to 30 parts by mass of a phosphorus-based antioxidant (A) and 0.1 to 30 parts by mass of a sulfonamide compound metal salt (B),wherein the sulfonamide compound metal salt (B) has a water content of 0.1% to 20% based on the mass ratio with respect to the sulfonamide compound metal salt and not higher than 3% based on the mass ratio with respect to the polyester resin composition.

The present application relates to an encapsulant for a PV module, a method of manufacturing the same and a PV module. The encapsulant according to an embodiment of the present application has excellent heat resistance or the like and improved creep physical properties, and thus even when the encapsulant is used under conditions of a high temperature and / or high humidity for a long time, deformation is small and the encapsulant can exhibit excellent adhesive strength. Accordingly, when the encapsulant is applied to a PV module, durability or the like may be improved.

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 medium-strength corrosion-resistant weldable crack-arrest titanium alloy. The titanium alloy is composed of, by mass percentage, 3.0-7.0% of an alpha stabilizing element Al, 1.5-4.5% of beta stabilizing elements of Mo, V, Nb and Ni, 0.5-3.0% of neutral elements of Zr and Sn, 0.01-0.3% of a Si element and the balance Ti and inevitable impurities, wherein, by mass percentage, 0-1% of Mo, 0-3% of V, 0-1% of Nb, 0.5% of Ni, 0-2% of Zr and 0-3% of Sn are included. The titanium alloy has the good strength, plasticity and toughness matching, the yield strength Rp0.2 is larger than or equal to 640 MPa, the tensile strength Rm is larger than or equal to 740 MPa, the elongation A is larger than or equal to 15%, the fracture toughness KIC is larger than or equal to 140 MPa.m<1 / 2>, and the impact toughness KV2 is larger than or equal to 80J; the alloy has the good crack arrest performance, and the dynamic tearing energy DTE is larger than or equal to 800 J; and meanwhile the good welding performance and resistance to seawater corrosion are achieved, the welding coefficient is larger than or equal to 0.95, the KISCC is larger than or equal to 95 MPa.m<1 / 2>, and the medium-strength corrosion-resistant weldable crack-arrest titanium alloy has the good technical application and market prospects in the fields of ship and marine engineering.

To provide a polyacetal resin composition capable of satisfying demands for higher levels and various mechanical properties as the fields of use of polyacetal resins expand. The polyacetal resin composition of the present invention contains: (A) 30% to 95% by weight of polyacetal resin, (B) 5% to 50% by weight of glass-based inorganic filler subjected to silane coupling treatment, (C) 0.1% by weight to 10% by weight of a trifunctional isocyanate compound, and (D) 0.01% by weight to 0.5% by weight of a nitrogen compound having formaldehyde reactivity. When the component (B) is glass fibers or the like, the tensile strength is 120 MPa or more, and when the component (B) is glass beads or the like, the tensile strength is 60 MPa or more. This resin composition is obtained by mixing other components with (A) component which pre-dried until the moisture content became 1000 ppm or less.

Provided are a chromium-molybdenum steel plate having excellent creep strength and a method for manufacturing same. The chromium-molybdenum steel plate of the present invention comprises, by weight%, 0.11-0.15% of C, 0.10% or less of Si (exclusive of 0%), 0.3-0.6% of Mn, 0.010% or less of S (exclusive of 0%), 0.015% or less of P (exclusive of 0%), 2.0-2.5% of Cr, 0.9-1.1% of Mo, 0.65-1.0% of V, 0.25% or less of Ni (exclusive of 0%), 0.20% or less of Cu (exclusive of 0%), 0.07% or less of Nb (exclusive of 0%), 0.03% or less of Ti (exclusive of 0%), 0.015% or less of N (exclusive of 0%), 0.025% or less of Al (exclusive of 0%), 0.002% or less of B (exclusive of 0%), and the remainder of Fe and unavoidable impurities.