38results about How to "Improve production success rate" patented technology

The invention discloses a novel structure of a high-order mode absorber, which includes barrel-shaped silicon carbide, an oxygen-free copper ring and a stainless steel ring, which are sequentially sleeved and assembled from the inside to the outside; the outer wall of the oxygen-free copper ring and the inner wall of the stainless steel ring are jointly A ring-shaped water channel for cooling is formed, and matching solder grooves and positioning bosses are formed at the joint surfaces of the two ends of the oxygen-free copper ring and the stainless steel ring. The utility model has the advantages of simple structure, small volume, easy manufacture, high strength and good reliability, and is suitable for mass production. A manufacturing method is also disclosed, including: a, feasibility demonstration of oxygen-free copper ring and silicon carbide thermal assembly; b, welding of oxygen-free copper ring and stainless steel ring; c, installation of absorber; d, oxygen-free copper ring and Absorber assembly tightness inspection; e, water pressure inspection. The method is simple, compact in structure, high in production success rate, and short in cycle; at the same time, less chemicals and metal raw materials are used in production, which reduces production risks and is beneficial to environmental protection.

The invention discloses a multilayered circuit board which is connected with an element to improve the utilization rate of circuit boards stacking and to reduce the number of layers of stacked circuitboards, thereby reducing production difficulty and production cost of the circuit board and improving production success rate of the circuit board. The element has rows of signal pins; the circuit board has rows of through-holes; the signal pins of the element are inserted to rows of through-holes of the circuit board; and on the same layer of the circuit board, at least two signal wires connected to the signal pins, which are inserted to two adjacent rows of the through-holes, are arranged between two adjacent rows of the through-holes to which the signal pins are inserted. The signal wirestransport non-paired signals.

The invention discloses a plastics suction mould, comprising press frames, wherein the press frames comprise press frame substrates and plastics suction part fixture; and the plastics suction part fixture is arranged at the upper end of the press frame substrates and is provided with first acute angles. The invention is characterized in that convex plates which extend outwards along the press frame substrates are arranged on the press frame substrates, positioned below the first acute angles and distant from the plastics suction part fixture. The plastics suction mould can reduce the under-cut depth and drawing of the thin films, thereby improving the mould yield.

The invention discloses a production method for a high tensile steel plate used for a high thickness boiler drum. The production method comprises the following steps: (1) smelting: smelting molten steel in an electric furnace, the refining the molten steel in an LF finer, adding 300 to 500 meters of Al thread, and carrying out vacuum treatment in a bale VD furnace when the temperature of the baleis more than or equal to 1600 DEG C; (2) casting: keeping the temperature between 1,545 and 1,555 DEG C after damaging the vacuum; (3) heating: realizing the sending, clearing and filling of a steel ingot at a moderate temperature, cooling down the furnace for over 30 minutes before steel filling, and stewing the steel for one hour; (4) rolling: adopting II type rolling control technology, and setting a first stage as an austenite recrystallization stage and a second stage as an austenite non-recrystallization stage; (5) water cooling: cooling down the rolled steel plate on line, and keeping the red temperature between 700 and 750 DEG C; (6) heat treatment: carrying out the normalizing plus tempering treatment of the steel plate; and (7) shot blasting: carrying out shot blasting before storing the steel plate in a warehouse so as to completely remove the iron sheet produced during heating. The method shortens the steel rolling and heating time, reduces the consumption of production energy, and meets the requirements of a plurality of heat cycles during the boiler manufacturing process. The steel plate has good welding performance.

The invention discloses a method for improving the molecular weight and the yield of a polyphosphazene elastomer, and belongs to the technical field of preparation of polyphosphazene elastomers. The method comprises the following steps: (1) adding a high-boiling-point solvent, reaction raw materials (astarting materialand a hexachlorocyclotriphosphazene monomer), a catalyst, a cocatalyst and an active agent into an anhydrous oxygen-free reaction container, raising the temperature of the system under stirring to 170-250 DEG C, and carrying out a constant-temperature reaction for 0.5-10 hours; then, supplementing an organic solvent or a precipitant into the system, adjusting the reaction temperature to continuously react for 1-30 hours, separating and extracting the reacted PDCP polymer after the reaction is finished, and concentrating the rest of the mixed solution containing a small part of PDCP and a monomer; and (3) adding the PDCP solution obtained in the step (2) into a mixture containing a substitution reagent, an acid-binding agent and a solvent, and performing a reaction, so as to obtain the completely substituted polyphosphazene elastomer. The relative molecular mass of thepolyphosphazene elastomer is improved, and meanwhile, the yield and the solvent utilization rate are increased.