49results about How to "Excellent extrusion formability" patented technology

A high strength steel sheet with both excellent elongation and stretch-flanging performance is provided. The high strength steel sheet of the present invention comprises, in percent by mass, C: 0.05 to 0.3%, Si: 0.01 to 3.0%, Mn: 0.5 to 3.0%, Al: 0.01 to 0.1%, and Fe and inevitable impurities as the remainder, and has a structure mainly composed of tempered martensite and annealed bainite. The space factor of the tempered martensite is 50 to 95%, the space factor of the annealed bainite is 5 to 30%, and the mean grain size of the tempered martensite is 10 [mu]m or smaller in terms of the equivalent of a circle diameter. The steel sheet has a tensile strength of 590 MPa or higher. The high strength steel sheet of the present invention has a space factor of the martensite phase which is a main component of the metal structure is 80% or higher; the mean grain size of the martensite phase is 10 [mu]m or smaller in terms of the equivalent of a circle diameter; in the martensite phase, the space factor of the martensite phase having a grain size of 10 [mu]m or larger in terms of the equivalent of a circle diameter is 15% or lower; and the space factor of the retained austenite phase in the metal structure is 3% or lower. The high strength steel sheet of the present invention is a dual phase steel sheet mainly composed of a ferrite phase and martensite, and the space factor of the ferrite phase is 5 to 30%, and the space factor of the martensite phase is 50 to 95%. Moreover, the ferrite phase is annealed martensite.

An ethylene-based polymer resin which is obtained by copolymerizing ethylene with an α-olefin having 5 to 20 carbon atoms, and has a melt flow rate (MFR) measured at 190° C. under a load of 21.18 N according to JIS K7210-1995, of not less than 0.01 g / 10 min. and less than 1 g / 10 min., wherein the melt flow rate and a melt tension(MT) at 190° C. (unit: cN) of the resin satisfy a relation of the following expression (1) and an intrinsic viscosity [η] (unit: dL / g) and the melt flow rate of the resin satisfy a relation of the following expression (2):2×MFR−0.59<MT<3.6×MFR−0.66  (1)1.02×MFR−0.094<[η]<1.50×MFR−0.156  (2).

The present invention relates to: a rubber composition [X] containing a polyamide [I] of 30-100 mol% terephthalic acid structural units having a melting point of 220-290DEG C, an ethylene-alpha-olefin-unconjugated polyene copolymer rubber [II] containing ethylene, alpha-olefin having 3-20 carbon atoms, and unconjugated polyene structural units, and an olefin polymer [III] containing 0.3-5.0 mass% functional group structural units; and a polyamide thermoplastic elastomer composition [Y] dynamically crosslinked by a phenolic resin crosslinking agent [IV] ([I]-[IV] are a total of 100 mass%).

The invention provides a fluorine-containing resin composition and a producing method thereof, wherein the fluidity of the composition is greatly improved. The present invention relates to a fluorine-containing resin composition, which contains 99.99-97% by mass of a fluorine resin having a melting point of 205-225 DEG C and 0.01-3% by mass of a thermotropic liquid crystal polymer. The present invention further relates to a fluorine-containing resin composition production method, which comprises: mixing polytrifluorochloroethylene and a thermotropic liquid crystal polymer at a temperature of 285-320 DEG C.

Polyamide elastomer comprising reaction product of components (a), (b), (c), (d). Component (a) has formula HOOC--R.sub.1--(--NH--CO--R.sub.1--).sub.n--NH.sub.2 (where each R.sub.1 independently is linear saturated hydrocarbon, n represents a real number of 0 or greater, and when there are multiple repeating units each containing R.sub.1, n represents total number of those repeating units). Component (b) has formula HOOC--R.sub.2--COOH (where R.sub.2 represents a direct bond or a linear saturated hydrocarbon group). Component (c) has formula H.sub.2N--R.sub.4--(--O--R.sub.4--).sub.m--NH2 (where each R.sub.4 independently represents a saturated hydrocarbon group; m represents a real number of .gtoreq.1; and when there are multiple repeating units each containing R.sub.4, m represents total number of those repeating units). Component (d) has formula H.sub.2N--[--CH(CH.sub.3)CH--O--].sub.x--[CH.sub.2CH.sub.2O--].sub.y--[CH- .sub.2CH(CH.sub.3)--O].sub.z--CH.sub.2CH(CH.sub.3)(NH.sub.2) wherein (x+z) is a real number of 1 to 6 and y is a real number of 1 to 20. A molar ratio of (c) / (d) in the polyamide elastomer ranges from 9 / 1 to 1 / 9.

A polyamide elastomer comprising a reaction product of components (a), (b), and (c). Component (a) has the formula HOOC—R1—(—NH—CO—R1-)n—NH2 (where each R1 independently is linear saturated hydrocarbon, n represents a real number of 0 or greater, and when the formula contains multiple repeating units each containing R1, n represents a total number of those repeating units) and the Mn of component (a)=4000-10000. Component (b) has the formula HOOC—R2—COOH (where R2 represents a direct bond or a linear saturated hydrocarbon group). Component (c) has the formula H2N—R4—(—O—R4-)m—NH2 (where each R4 independently represents a saturated hydrocarbon group containing 1 or more carbon atoms; m represents a real number of 1 or more; and when the formula contains two or more types of the repeating units each containing R4, m represents a total number of the two or more types of the repeating units each containing R4).

Provided is a solar cell module wherein a rear surface protection sheet has excellent long-term durability, and transmissivity of ultraviolet that reaches the solar cell is retained for a long time. This solar cell module is configured by laminating a front surface protection sheet, a light receiving-side sealing sheet, a solar cell element, a rear surface-side sealing sheet, and a rear surface protection sheet in this order. The solar cell module is characterized in that the light receiving-side sealing sheet has a transmissivity of 50 % or more with respect to light having a wavelength of 300 nm, and the rear surface-side sealing sheet contains a reactive ultraviolet absorbent.

The invention belongs to the technical field of polymer materials, and relates to an ABS / PET material and a preparation method thereof. The material is made of the following components by weight: 100 parts of ABS resin, 10-50 parts of PET resin, 20-60 parts of glass fiber, 12-30 parts of flame retardant, 5-15 parts of compatibilizer, light stable 0.2-1.0 parts of lubricant, 0.2-1.5 parts of lubricant, 0.4-1.2 parts of antioxidant. The weather-resistant and flame-retardant ABS / PET material for extrusion prepared by the present invention has excellent extrusion formability, outstanding flame retardancy and weather resistance, can meet the needs of outdoor use, and greatly expands the application range of ABS materials , Oil resistance, solvent resistance and physical and mechanical properties are significantly better than unmodified ABS materials, and the extruded products have excellent performance. It can be widely used in various fields of social life such as pipelines, building profiles and panels, and has great economic and social value.

The invention belongs to the technical fields of a silicon carbide ceramic material and a preparation method thereof, in particular relates to a preparation method of a silicon carbide ceramic tubular product with high strength, high thermal conduction, low expansion, high thermal-shock resistance performance and controllable external dimensions. The silicon carbide ceramic tubes have even texture and uniform tubular wall thickness; the thickness of each tubular wall can be controlled from 0.5 mm to 20 mm, each tubular outer diameter can be from 5 mm to 100 mm, the silicon carbide ceramic tube with the longest length is limited by a sintering furnace, and each tubular wall can be in a compact structure or a micropore structure. The silicon carbide ceramic tubular product uses organic resin and SiC powder as main raw materials and utilizes an extrusion molding technology to prepare a tubular precast blank which is compacted and equalized at a high temperature, pyrolysed to forma final product after reaction, infiltration and sintering. The silicon carbide ceramic tubular product has the fundamental characteristics of SiC ceramics, such as high strength, low thermal expansion coefficient, high thermal conduction, chemical corrosion resistance, oxidation resistance, good high temperature stability, strong thermal-shock resistance performance, and the like. The preparation method has simple technology, convenient operation, no complicated equipment and low manufacture cost.

An object of the present invention is to provide a polyvinyl chloride resin composition excellent in extrusion moldability, mechanical properties, and cold resistance, and an insulated electric wire using the polyvinyl chloride resin composition. As a method for solving the problem of the present invention, it relates to a polyvinyl chloride resin composition containing a polyvinyl chloride resin (A), a plasticizer (B), a non-lead stabilizer (C), and does not contain The non-lead stabilizer (C) contains zinc metal soap (c1) and hydrotalcite (c2), and contains 19% by mass or more and 24% by mass relative to 100% by mass of the polyvinyl chloride resin composition. The plasticizer (B) below, the non-lead stabilizer (C) at 4% by mass or more, and the mass ratio (c2 / c1) of the hydrotalcite (c2) to the zinc metal soap (c1) are 3.5 to 10.

A walking straw extrusion molding machine, including a tractor, a straw harvesting device, a feeding device, a crushing device, a raw material storage box, a feeding device, an extrusion molding device, a molding material conveying device, a finished product hopper, a discharging device and Car body; the straw harvesting device is set on the front side of the tractor, and the car body is set on the rear side of the tractor and connected with the tractor; crushing device, feeding device, raw material storage box, conveying device, extrusion molding device, forming The material conveying device, the finished product hopper, and the unloading device are sequentially arranged on the car body, and the crushing device is connected with the straw harvesting device. A field straw extrusion molding method. The invention has the advantages of good granulation effect, good extrusion molding effect, small volume, more durable and the like. The invention belongs to the technical field of biomass energy.