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

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 bale is 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 relates to a method for casting a fine structure of a thick-wall nodular iron casting, in particular to a method for casting the thick-wall nodular iron casting of a blower in a power plant, which comprises the steps of core bar manufacturing, core manufacturing, molding, mould assembling, pouring and sand falling and cleaning; the invention provides the method for casting the thick-wall nodular iron casting of the blower in the power plant; and the process method is unique, can improve the success ratio of sand core production, reduce the difficulty of core manufacturing and solve the problem that sand is adhered in pores.

The invention provides a method for preparing flaky nickel powder. The method is characterized in that water, nickel salt, a complexing agent, a nickel plating brightening agent, a dispersing agent, an antioxidant, acid, a flaky acidic compound crystal template and a reducing agent are taken as raw materials, nickel plating is carried out on the surface of the flaky acidic compound crystal template by adopting a chemical plating method until nickel ions react completely, and after the reaction is finished, the flaky nickel powder is directly obtained through a separation and purification treatment and a processing treatment without ball milling. The technical scheme of the method has the advantages that the energy consumption is low, environmental pollution is low, the production process is simple, the process route is short, the investment to the large-scale production equipment is low, the production efficiency is high, the production cost is low, and the dispersion performance and the conductivity of the products are good; and the method is suitable for large-scale production and capable of solving the problems exist in the ball milling process when the ball milling process is used for preparing the flaky nickel powder, and has good industrialization prospect.

The embodiment of the invention discloses a manufacturing method of an oral custom-made sports tooth protection, which is used for solving the problems of uncomfortable wearing, poor protective effectand high manufacturing difficulty of various types of sports tooth protection in the prior art. The embodiment of the invention also provides a sports tooth protection obtained by the manufacturing method. The tooth protection originally creates a three-laminated film structure, improves the technical defects of the original processing links, and improves the protection level of the existing professional oral customized sports tooth protection to level 8-9.

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 relates to a continuous punch forming technology for an airbag gas generator. The technology comprises steps as follows: raw materials are cut and pre-pressed, and a to-be-processed blank material is formed; the blank material is subjected to first-section deep drawing, and a columnar workpiece with height H is produced; the workpiece is subjected to second-section deep drawing, a punch of a second-section deep drawing position is arranged along a center axis of the columnar workpiece, the deep drawing height after the punch is ejected out is larger than H, and the diameter of the punch of the second-section deep drawing position is smaller than that of a punch of a first-section deep drawing position; N sections of deep drawing positions are set, the workpiece is subjected to stepping deep drawing, and the specific number of sections of the deep drawing and height are set according to processing parameters; cavities based on vertical buckled ejection press are adopted, and the workpiece after deep drawing is subjected to shaping press; the workpiece in a shaping position is conveyed to a cutting position by a conveying device; unnecessary waste is removed by cuttingedges and corners of the workpiece. The whole processing technology is highly integrated, so that the processing efficiency is improved, the processing time is shortened, and the success rate of product production is increased.

The invention discloses a multifunctional diagnosis and treatment manipulator for midwifery. The multifunctional diagnosis and treatment manipulator comprises a mechanical arm assembly, and further comprises an operation assembly and an adsorption assembly; the mechanical arm assembly is used for traction operation of a fetus; the mechanical arm assembly comprises a plurality of rotating arms, so that the mechanical arm assembly can adjust the fetus traction angle; the mechanical arm assembly comprises a positioning arm, and the positioning arm is a section of rotating arm at the moving end of a rotating arm of the mechanical arm assembly; the operation assembly is fixed on the positioning arm; the adsorption assembly comprises a disc-shaped piece, a unit suction cup, a guide pipe, a traction pipe, a central negative pressure pipe and a camera; the disc-shaped piece is made of a flexible airtight material and is used for covering the head of the fetus; and a through hole is formed in the center of the disc-shaped piece, the through hole is fixedly communicated with the center negative pressure pipe, and the through hole of the disc-shaped piece is fixedly connected with a telescopic rod at the same time, so that the telescopic rod can drive the disc-shaped piece to penetrate through a positioning ring to move. The manipulator can assist the delivery process of a puerpera.

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 an optimized structure for eliminating the shrinkage porosity of a side cover of a valve body of a steering gear. The optimized structure for eliminating the shrinkage porosityof the side cover of the valve body of the steering gear comprises a side cover casting body and a valve body casting body, wherein a weight reduction groove is formed in the top end of the left sideof the side cover casting body; a casting dead head is fixedly installed at the middle position of the side cover casting body; a station B is arranged at the left side of the casting dead head; a station A is arranged at the right side of the casting dead head; and a die drawing layer is bonded and fixed to the outer side of the weight reduction groove. According to the optimized structure for eliminating the shrinkage porosity of the side cover of the valve body of the steering gear, by increasing the size of the dead head, the dead head is made to effectively feed a casting; by adding a process patch layer, an effective feeding channel is established between the dead head and the casting, so that the effect of eliminating the shrinkage porosity at the position of the station A is achieved; by increasing the inclination angle of die drawing, the wall thickness at the position of the station B can be effectively reduced, so that the position is capable of being rapidly solidified; and moreover, due to the dimension increasing of the weight reduction groove, the casting can be better removed from a die, so that the appearance of the casting is ensured.

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.