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261results about How to "Low raw material cost" patented technology

Optical cable foaming packing gasket granule material and method for producing same

The invention relates to an optical cable foaming packing gasket granule and a manufacturing method thereof; the mixture ratio of the materials and the weight parts are: 50-60 parts of low density and high pressure polyethylene, 15-25 parts of high density and low pressure polyethylene, 10-30 parts of polypropylene, 0.5-1.5 parts of Tissuemat E, 0.5-1.5 parts of stearic acid, 0.4-1.2 parts of calcium stearate and 0.4-1.2 parts of four pentaerythritol fat which are prepared by heating kneading, extrusion, cooling, drying and grain-sized dicing. The granule has the density of 0.944 plus or minus 0.015g/cm<3>, tensile-strength of being more than or equal to 20MPa, the elongation of break of being more than or equal to 580 percent, the electric volume resistivity of being more than or equal to 1.0 multiplied by 10 <13> Omega m, the oxidation induced period of being more than or equal to 30 min, the solution moving speed of being less than or equal to 2.0g/10min and moisture of being less than or equal to 0.08 percent. The granule is prepared by three steps of mixing and kneading of material, fusing and extruding strip formation of the kneaded objects and cooling and grain-sized dicing of the strip, is exclusively used for preparing the material of optical cable foaming packing gasket, and has the advantages of light weight, saving material, being applicable to foaming and joint connection with PBT plastic, and the like.
Owner:龙泽飞

Moisture-conducting quick-drying weft-knitted fabric and processing technology thereof

PendingCN107354564AStable moisture-wicking functionLow raw material cost
The invention provides a moisture-conducting quick-drying weft-knitted fabric. The fabric can solve the problems that an existing moisture-conducting quick-drying fabric is not washable when treated with a functional additive, is not resistant to high temperature when water-repellent fibers serve as the inner layer, and is expensive and not easy to process when waterproof yarn serves as the inner layer. A grey fabric of the fabric is formed through weft knitting of at least two kinds of yarn different in DPF, wherein the looping area of the yarn, with the minimum DPF, in the at least two kinds of yarn different in DPF on the front side of the grey fabric accounts for 60-100% of the total area of the front side; the looping area or the floating thread area of the yarn, with the maximum DPF, in the at least two kinds of yarn different in DPF on the reverse side of the grey fabric accounts for 60-100% of the total area of the reverse side; the DPF value of the yarn with the maximum DPF is at least 0.3 larger than that of the yarn with the minimum DPF. The invention provides a processing technology of the moisture-conducting quick-drying weft-knitted fabric. The technology comprises the following steps of grey cloth weaving, pre-treatment, dyeing, reduction washing, high-temperature setting, reduction washing and finished product shaping.
Owner:WUXI HANUO TEXTILE TECH

One-step forming method for online hot stamping and concave-convex die cutting of web gravure printing

The invention relates to a one-step forming method for the online hot stamping and concave-convex die cutting of web gravure printing. The one-step forming of the online hot stamping and concave-convex die cutting of a printing machine cannot be realized in the prior art. In the method, a printed web is subjected to hot stamping; the accuracy of the hot stamping is ensured through a line cursor tracker and an encoder; as a series roller is adjusted through an adjusting motor, the sum of the rotating velocity of a charging roller and the jumping velocity of the serial roller equals to the transmission velocity of the web; the temperature of a hot stamping roller is controlled between 200 DEG C and 260 DEG C; the pressure of the hot stamping roller is controlled between 0.3MPa and 0.7MPa; the rotating speed of the hot stamping roller is controlled between 130r/min and 136r/min; an alarming system reminds a user of pre-placing an electroplating aluminum foil; the hot-stamped web passes through a processing device; and therefore, the concave-convex pressing and die cutting are realized, and the online hot stamping and the concave-convex die cutting of the web gravure printing are realized. The one-step forming method has the advantages of simple technology, reduced cost of raw materials and improved accuracy.
Owner:TONGXIANG PRINTING

Method for preparing chalcopyrite structure CuInSe2 or/and CuInSe2/ZnS core-shell structure quantum dots

InactiveCN102660288AAvoid the use of precursor raw materialsLow raw material cost
The invention relates to a method for preparing chalcopyrite structure CuInSe2 or/and CuInSe2/ZnS core-shell structure quantum dots, comprising the following steps: firstly preparing an In3<+>, Cu<+> cation precursor solution, rapidly heating up from room temperature to 200-250 DEG C under the protection of argon, rapidly injecting an Se precursor solution, reacting for 15-60 min to obtain a CuInSe2 quantum dot solution; reacting for 30-60min at 190-230 DEG C by dropwisely adding a zinc precursor solution, then naturally cooling to room temperature, and carrying out centrifugal purification to obtain CuInSe2/ZnS core-shell structure quantum dots, wherein the obtained CuInSe2 quantum dots have a chalcopyrite crystal structure, the atomic ratio of Cu to In to Se is close to 1 to 1 to 2, the range of the fluorescence emission peak of the CuInSe2/ZnS core-shell structure quantum dots is 700-960 nm, and the fluorescence quantum yield is 19.8-33.4 %. According to the invention, the method uses the low-cost Se precursor, the process is simple, the synthetic period is short, the method is beneficial for batch production, and the synthesized CuInSe2/ZnS quantum dots are near-infrared luminous and have good fluorescence efficiency, and lay the foundations for the application of quantum dots in bioluminescence imaging in vivo.
Owner:TIANJIN UNIV

Stove heat-insulating shield and stove utilizing stove heat-insulating shield

The invention relates to a stove heat-insulating shield. The shield comprises an annular shield body, and is characterized in that the shield body is of a double-layer structure formed by an upper layer shield and a lower layer shield, a cavity is formed between the upper layer shield and the lower layer shield, pot supporting legs which are arranged at intervals in the circumferential direction are fixed on the upper surface of the upper layer shield. Compared with the prior art, the stove heat-insulating shield has the advantages that the stove heat-insulating shield is additionally arranged, the heat-insulating shield is of a double-layer structure, the heat preservation property is improved, meanwhile, the built-in pot supporting legs are fixedly arranged on the heat-insulating shield,so that heat absorbed by the pot supporting legs can heat the pot bottom as much as possible through heat conduction, meanwhile, the heat loss of flames is reduced. The invention further discloses astove utilizing the heat-insulating shield. Secondary air supplementing grooves of the shield body can be aligned with secondary air inlets of a combustor gas mixing chamber one by one, meanwhile, thesecondary air supplementing grooves of the shield body can be opposite to the secondary air inlets of the combustor gas mixing chamber under the cooperation of a positioning block on a stove panel and a shield body matching groove, so that secondary air can be effectively supplemented.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD
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