33results about How to "Production cost economy" patented technology

The invention discloses low-temperature X80HD (High Density) large-deformation pipeline steel with great wall thickness and a production method thereof, belonging to the technical field of medium-thickness plate production and longitudinal submerged arc welded tube production. A steel plate comprises the following chemical components in percentage by mass: not less than 0.04% and not greater than 0.09% of C, not greater than 0.35% of Si, not less than 1.5% and not greater than 1.85% of Mn, not greater than 0.012% of P, not greater than 0.004% of S, not less than 0.02% and not greater than 0.05% of Nb, not less than 0.008% and not greater than 0.025% of Ti, not less than 0.10% and not greater than 0.50% of Ni, not less than 0.10% and not greater than 0.45% of Cr, not less than 0.10% and not greater than 0.30% of Cu, not less than 0.10% and not greater than 0.35% of Mo, not less than 0.020% and not greater than 0.070% of Alt, not greater than 0.0005% of B, not greater than 0.0050% of Ca, and the balance of Fe and inevitable impurities. A preparation method of the steel plate comprises the processes such as converter smelting, external refining, continuous casting, heating, controlled rolling, relaxation phase change control and quick cooling; a texture of the rolled steel plate is ferrite, bainite and a little M / A (Martensite / Austenite), wherein ferrite content is 60%-85%, and bainite and M / A content is 15%-40%. The obtained X80HD large-deformation pipeline steel has high strength and toughness, a high work-hardening index, high uniform ductility, a low yield ratio and good deformation resistance.

The invention discloses acidic milk powder and a preparation method thereof. The acidic milk powder comprises milk solids, and further comprises the following components by weight percent: 1.5% to 2.5% of stabilizing agent and 0.4% to 2.5% of acidity regulator. The preparation method comprises the following steps: firstly, concentrating milk to obtain concentrated milk; secondly, mixing the concentrated milk with the stabilizing agent to obtain stable concentrated milk; thirdly, mixing the stable concentrated milk with acidic solution to obtain acidic concentrated milk; and fourthly, spray drying the acidic concentrated milk to obtain the acidic milk powder. The acidic milk powder has a stronger acid taste, is delicious, and has good dissolubility and good mouthfeel; the production technology of the acidic milk powder overcomes the detect of the direct dry mixing technology that products have poor dissolubility and overcomes the technical problem that acidic / juice milk is not suitable for being concentrated or spray-dried directly, so that protein does not denature during the spray drying process; and since neither stabilizing agent or juice is concentrated, so that the phenomena of coking on the surface of a heater is avoided. The invention has low manufacturing cost and is applicable to large-scale industrial production.

The invention discloses a zinc catalyst using polyester materials for controllable depolymerization and a catalytic method thereof, belonging to the technical field of polyester depolymerization. The invention solves the problem that complex ligands need to be synthesized for the zinc catalyst used in the alcoholysis of existing waste polyester materials, and the synthesis steps are increased. The catalyst used in the present invention is a bis(hexaalkyldisilazane) zinc catalyst with a simple structure. With the participation of alcohol compounds, the polyester material can be decomposed under mild conditions through the transesterification reaction catalyzed by the catalyst. Polymerization into small organic molecules realizes the reuse of waste polyester. The invention adopts a zinc catalyst to catalyze the depolymerization of the polyester, the metal zinc is non-toxic, colorless, cheap and easy to obtain, and as one of the trace elements of the human body, it has good biocompatibility, and the production process is more green and environmentally friendly; and the catalyst structure is simple and the synthesis steps Less, the production cost is more economical. The catalyst has good universality, and has good depolymerization effects on various polyester materials with different structures.

The invention discloses a method for preparing an enamel arc plate with a radius r>3000mm, comprising the following steps: laser cutting of the plate; bending of the corner of the plate; full welding of the corner of the plate; welding and grinding; surface treatment; glaze spraying; high-temperature firing surface coating; crimping the aluminum honeycomb core, forming an arc plate by molding, and crimping the galvanized steel plate; or, sequentially crimping the aluminum honeycomb core and the galvanized steel plate, forming an arc plate by molding, and making a radius r > 3000mm The enamel arc plate is put into boxes and put into storage. The method for preparing the enamel circular arc plate with a radius r>3000mm of the present invention can realize the production of different arcs, the product has a high pass rate at one time, cancels circle forming, tendon welding, artificial shaping and other processes, and improves production efficiency.

The invention discloses a tension measurement and regulation mechanism for a lift suspension rope. The mechanism comprises a screw, an elastic component, a locknut, a pressure sensor and a regulation nut, wherein the end of the screw is connected with the suspension rope, and the elastic component, the locknut, the pressure sensor and the regulation nut are arranged on the screw in a sleeving mode in sequence. The tension measurement and regulation mechanism for the lift suspension rope further comprises a regulator. The pressure sensor is arranged between the regulator and the regulation nut, the regulation nut is provided with a guiding portion, and the guiding portion is located between the screw and the pressure sensor. The tension measurement and regulation mechanism for the lift suspension rope is provided with the regulator and a regulation sleeve which are arranged on the periphery of the locknut in a covering mode, the locknut can be regulated conveniently and quickly, and the mechanism can be suitable for the locknuts with different specifications and sizes. Meanwhile, the special regulation nut is arranged, therefore, not only is output pressure of the pressure sensor more precise, but also the whole structure of the mechanism is simpler, and the production cost is more economical.

The invention provides an anisotropic piezoelectric material and a preparing method thereof. The composition chemical formula is as follows: [(1-x) (0.7PbZrO3 - 0.3K0.5Bi0.5TiO3) - xPbTiO3] + yPbZnNb2O5, x = 0.25 - 0.30, y = 0.01 - 0.20. The preparing method comprises the following preparing steps: mixing materials by a mass molar in the formula, ball-grinding by a wet method, briquetting after drying and synthesizing; synthesizing blocks after coarse grinding, carrying out secondary wet ball grinding, and pelletizing polyvinyl alcohol after drying; feeding degummed biscuits in an aluminum oxide crucible and sintering into ceramic; carrying out electrode oil bath polarization on the ceramic to obtain the anisotropic piezoelectric material. The material has high anisotropism, the piezoelectric strain coefficient in the polarization direction is larger than the piezoelectric coefficient in the non-polar direction, and the isostatic pressing piezoelectric sensitivity is as high as 40*10<-3> V.m / N and much higher than that of a lead zirconate titanate piezoelectric material. The material ingredients are reasonable and are easy to sinter and polarize, and the material is particularly suitable for manufacturing high-sensitivity and high-resolution hydrophones.

The invention relates to a channel disc adapter for an air rotor spinning device. The air rotor spinning device has a rotor rotating at a high speed in an evacuable rotor housing, here with a channel disc adapter made of plastic, with a nozzle area for the fiber channel and a The central channel hole of the yarn navel is replaceably mounted in the support of a fiber channel disc which seals the rotor housing when spinning is in motion. According to the arrangement of the invention, the channel disc adapter (24) has an integrally formed clamping connector (37) in the entry area of ​​the channel hole (26) for centering and fixing of the yarn navel (27).