53results about How to "Reduce the difficulty of production operations" patented technology

The invention provides a method for preparing 1, 3-methyl-5-(2, 6, 6-trimethyl-1- cyclohexene-1-yl)-2, 4-pentadiene methyl phosphonate. In the method, a benzophenone compound preventing transposition is added in the process of generating the 1, 3-methyl-5-(2,6,6-trimethyl-1-cyclohexene-1-yl)-2,4-pentadiene methyl phosphonate by the reaction of methylene diphosphate four alkyl and C14 aldehyde in a mixed solvent of methylbenzene and tetrahydrofuran, thereby inhibiting the generation of a target product isomer in order that the content of the target product in a final product reaches up to 97 percent.

The invention discloses a 400 MPa level fine grain threaded reinforcing bar and a manufacturing method thereof, and belongs to the field of threaded reinforcing bar production. The reinforcing bar comprises, by mass percentage, 0.20-0.25% of C, 0.3-0.8% of Si, 1.2-1.6% of Mn, 0.01-0.04% of P, 0.01-0.04% of S, 0.004-0.02% of Ti, 0.001-0.08% of Cr, 0.0001-0.008% of V, 0.0001-0.008% of Nb, 0.0001-0.008% of Al, 0.003-0.01% of O, 0.003-0.01% of N and the balanced of Fe and unavoidable impurities; manganese silicate inclusion, titanium oxide manganese sulfide complex inclusion, manganese sulfide complex inclusion and other unavoidable inclusions are included. The method comprises the steps of molten steel smelting, inclusion controlling, continuous casting, continuous casting blank heating and rolling cooling. The method has the advantages that optimizing designing is conducted on components and the inclusions, smelting and rolling are combined, a reinforcing mechanism of using the inclusions to induce fine crystalline to improve the strength of the reinforcing bar, the addition of precious alloy elements is reduced, and therefore the low-cost high-quality production of the threaded reinforcing bars is achieved.

The invention provides a dissolving-out process for a large-sized pipeline remaining tank of diasporite bauxite ore. Processed raw materials include gibbsite and boehmite mixed bauxite ore or the diasporite bauxite ore. The dissolving-out process includes the following steps: pre-desiliconized ore pulp is mixed with circulating mother liquor at an outlet of a desiliconizing discharging groove, is preheated by a sleeve preheater, is heated to the dissolving-out temperature by a sleeve heater, and then enters a heat-preservation remaining tank for remaining; finally, flash evaporation and separation are carried out on the ore pulp by a flash evaporator. The method in the invention realizes maximization of equipment, has strong capability of processing the ore pulp, and breaks through the capability limit of a pressing and stewing dissolving-out process to process the ore pulp; moreover, energy is saved, and the heat utilizing rate is high. The multi-inner-pipe sleeve preheater and the heater are adopted to preheat and heat the bauxite ore pulp; within the operating temperature range of the process, the heat transfer coefficient can be up to 900 to 1,200 Kcal/m2.h. DEG C. Compared with the traditional dissolving-out process, the dissolving-out process in the invention can save more than 30% of the energy in a comprehensive manner.

The invention discloses a method to prepare perchlorate by electrolyzation. Make the electrobaths is greater than or equal to 3 in series become a group and arrange according to graded position difference, make the electrolyte flow from the high-position electrobath to the highest-position one, after electrolyzed, overflow into next one for electrolyzation, then overflow into next one, and electrolyzed in the final one to obtain the finished electrolyte, and control the conversion within 65-85%, to use the finished electrolyte to produce perchlorate product. It improves the current efficiency by above 15%, each ton of perchlorate can reduce electric consumption by 800kw.h, and the output of the perchlorate can be raised by 15% above.

The invention discloses a hot-rolled seamless steel tube and a deformation and phase transformation integrated type structure regulation and control method thereof, and belongs to the field of hot-rolled seamless steel tube production. The hot-rolled seamless steel tube comprises the following elements: 0.04% to 0.4% of C, 0.1% to 0.8 % of Si, 0.3% to 2.5% of Mn, 0.001% to 0.03% of P, 0.001% to 0.03% of S, 0.001% to 0.05% of Al, 0.003% to 0.03% of Ti, 0.001% to 0.01% of Mg+Ca +Zr +B, 0.001% to 0.008% of O, 0.003% to 0.012% of N and the balance Fe and inevitable impurity elements. According to the regulation and control method, chemical components and inclusion distribution of the steel tube are optimally designed, smelting, rolling and cooling processes are reasonably controlled, special inclusion particles are utilized to play a role in structure refinement, so that coarse unfavorable structures such as grain boundary ferrite, a widmannstatten structure and side bar ferrite are eliminated, a fine grain structure is obtained, and the strength and toughness of the tube are improved.

The invention discloses a method for preparing beta-ionone by using pseudoionone as raw materials. The pseudoionone performs cyclization reaction under the catalysis effect of sulfuric acid; quenchingis performed; nitric oxide gas is introduced into reaction liquid after the quenching; then, isomerization reaction is performed to obtain the beta-ionone. The method has the advantages that the process is simple; no harsh reaction conditions are needed; sulfuric acid and solvents can be cyclically used for many times; in addition, the purity of the beta-ionone in the obtained product is high, and is higher than 97.5 percent.

The invention relates to the technical field of a model ship battery, and in particular relates to a lithium ion battery pack capable of outputting multiple voltages. The lithium ion battery pack comprises cells, a printed circuit board assembly and a printed circuit board module, and is characterized in that plugs are embedded in the parts, corresponding to electrodes of the cells of the printed circuit board assembly; the battery pack is formed by sequentially connecting the cells, the printed circuit board assembly and the printed circuit board module; battery pack units with equal cells are connected with one another in series or in parallel by the printed circuit board module to form the battery pack capable of outputting different voltages. According to the lithium ion battery pack, the same number of cells with the same model are connected with one another in series or in parallel by the printed circuit board module to form the battery pack capable of outputting different voltages values, the varieties of the cells of the battery pack can be reduced, the structure is unified, sub materials needed by the battery pack can be shared to the utmost extent, and the production operation difficulty is lowered.

The invention relates to a 500MPa-grade niobium-containing screw-thread reinforcing steel bar and a manufacturing method thereof, and belongs to the field of screw-thread reinforcing steel bar production. The reinforcing steel bar comprises 0.20 to 0.25 percent of C, 0.5 to 0.8 percent of Si, 1.2 to 1.6 percent of Mn, 0.01 to 0.04 percent of P, 0.01 to 0.04 percent of S, 0.005 to 0.02 percent of Ti, 0.001 to 0.01 percent of RE, 0.015 to 0.035 percent of Nb, 0.003 to 0.01 percent of O, 0.003 to 0.01 percent of N, and the balance Fe and inevitable impurities. In the reinforcing steel bar, the quantity of Nb-compound-containing precipitates with the equivalent diameter being 0.003 to 0.03mum is 50 to 500pcs/mum<2>; and the total quantity of RE-compound-containing and/or Tti-compound-containing occluded foreign substances with the equivalent diameter being 0.03 to 3mum is 2000 to 4000pcs/mm<2>. The preparation method of the 500MPa-grade niobium-containing screw-thread reinforcing steel barcomprises the steps of smelting, controlling the occluded foreign substances, continuously casting, heating a continuous casting blank, and rolling the reinforcing steel bar. The method can realize the low-cost high-quality production of the 500MPa-grade screw-thread reinforcing steel bars.

The invention discloses a high-thermal-conductivity corrosion-resistant electrical steel self-bonding coating and a preparation method thereof. The self-adhesive coating comprises the following components in percentage by mass: 25%-35% of bisphenol A type epoxy resin, 4%-8% of novolac epoxy resin, 0.2%-0.5% of isooctyl phosphate, 5%-10% of propylene glycol monomethyl ether, 5%-8% of an emulsifier, 1%-3% of dimethylaminoethoxy trioxaborooctacycle, 0.5%-2% of ammonium blocked Lewis acid salt, 3%-12% of boron nitride fiber, 0.4%-1.0% of alumina fiber, 0.2%-0.3% of a grinding aid and the balance of pure water. An activated self-adhesive coating formed after the self-adhesive coating is subjected to primary curing remarkably improves the corrosion resistance to an electrical steel substrate, the self-adhesive coating has high heat conductivity, and the operation difficulty of primary curing and secondary hot-pressing curing process conditions is remarkably reduced. The preparation method of the self-adhesive coating is easy to operate and high in implementation feasibility.

The invention relates to a three-dimensional LED (light emitting diode) luminous body and a processing method of the three-dimensional LED luminous body. The three-dimensional LED luminous body comprises a strip-shaped transparent base plate and a plurality of LED wafers in tandem connection, wherein the LED wafers are positioned on the transparent base plate through transparent silica gel, and two ends of the LED wafers are provided with leads, wherein two ends of the transparent base plate are respectively provided with metal connecting elements, the metal connecting elements are provided with U-shaped clamp openings and are clamped and buckled at two ends of the transparent base plate, adhesives are adopted between the metal connecting elements and the transparent base plate for fixation, and the leads are electrically connected with the metal connecting elements. The invention aims at providing the three-dimensional LED luminous body with simple structure and stable connection, and the processing method of the three-dimensional LED luminous body.

The invention discloses a oscillating unloading device, comprising: a driving structure, a transmission rod, a rotating shaft, a rocker arm, a base, an upper mold and a lower mold, and the driving structure drives the second end of the transmission rod to move relative to the first end of the transmission rod, That is, the first end of the transmission rod can be rotated, so that the rotating shaft and the rocker arm can be driven to rotate together, so that the second end of the rocker arm supports the workpiece from the bottom of the workpiece. Since the rocker arm rotates with the rotating shaft, the movement track of the rocker arm is arc shape, the workpiece can be pushed out at a certain angle close to the operator, and the operator can simply and conveniently complete the material removal; and because the driving structure is placed outside the lower mold, it is not limited by the inner space of the lower mold; therefore, the present invention It can reduce the difficulty of production operation and greatly improve production efficiency.