35results about How to "Content adjustment" patented technology

The present invention discloses aluminum silicon deformable aluminum alloy and the preparation method thereof. According to the weight percentages, the alloy contains 9.0-12.6 percent of silicon, 1.5-4.0 percent of copper, 0.3-0.6 percent of magnesium, 0.1-3.5 percent of bismuth, less than 0.30 percent of iron, less than 0.20 percent of zinc, less than or equal to 0.15 percent of impurity, and aluminum as the residual. The raw material is molten and fined in a reflecting smelting furnace, after Al-Sr intermediate alloy modification to the alloy liquid, cast rods are obtained through semi continuous casting, and after hot extrusion and deformation to the cast rods, the aluminum silicon deformable aluminum alloy is produced through forging and T6 heat treatment. After adding the element bismuth into the alloy, the present invention greatly enhances the wear-resisting performance of the alloy, leads the alloy to have self lubricating property, prolongs the service life of the product produced with the alloy, reduces the use cost, and leads the alloy to have the tensile strength of above 390 MPa, the elongation rate after breaking of 6 percent, and the hardness degree of 136-141 HB. The present invention is mainly used for producing vehicle components of wheels, pistons, bearings, and two-side swash plates of vehicles and motorcycles which have high demands on the intensity, the toughness and the abrasion resistance.

The invention relates to a nickel-based alloy of a nuclear power steam generator. The invention can maintain or increase the alloy performance while reducing the alloy cost. The specific scheme of the invention is as follows: 1. a defined amount of rare earth elements are added in steel to have purification and metamorphism functions of deoxidizing, desulfurizing, changing the shape of inclusion and the like, have microalloy function in the alloy and finally increase the oxidation resistance, high temperature strength and plasticity, fatigue life, corrosion resistance, crack resistance and the like of the steel; 2. in view of the production cost, the content of the precious element nickel is needed to be as low as the lower limit under the premise of ensuring the processability and ensuring that the alloy can form the desired metallographic structure; 3. the content of chromium element is increased properly so as to increase the high temperature oxidation resistance and corrosion resistance of alloy; 4. the content of silicon element is adjusted so as to increase the tensile strength and corrosion resistance of alloy while the plasticity of alloy is ensured; and 5. the content of carbon is controlled and titanium element is added at the same time so as to further increase the oxidation resistance and corrosion resistance of steel.

The invention relates to a roll ring steel for aluminum casting rolling mill and its heat treatment method. Chemical ingredient weight percentage of roll ring steel for aluminum casting rolling mill are : C 0.30-0.45, Mn 0.60-0.80, Si 0.20-0.40, P <=0.025, S <=0.025, Cr 2.00-3.00, Ni 0.50-1.00, Mo 0.80-1.20, V 0.10-0.20, Al <=0.012, surplus being ferrum and other impurity. The final heat treatment method of roll ring steel adopt second tempering after quenching. Quenching temperature is 850-920 DEG C , and proceeding in engine oil after heat preservation. In first tempering, roll ring is heated to 500-560 DEG C , insulated 10-20 hours, cooled in engine oil. The second tempering parameters are same with that of first tempering. The invention promotes anti heat fatigue crack capability of roll ring, so promotes the life of roll ring.

The invention discloses polycaprolactone with a reactive group on a side chain and a preparation method of the polycaprolactone. The side chain of the reactive polycaprolactone contains -COOH, the hydrophilic-hydrophobic property of the reactive polycaprolactone can be adjusted by adjusting the content of the -COOH, the -COOH on the side chain has a reaction property and can be used for chemically fixing bioactive molecules, the bioactivity of the polycaprolactone is achieved, and the application range of the polycaprolactone can be enlarged.

The invention discloses a spark plasma sintering manufacturing technology for a high-rigidity polycrystalline diamond drawing die. A bushing is obtained by carrying out spark plasma sintering on metal powder, the vacuum degree is 2-8 Pa, the initial pressure is 20-30 MPa, after the temperature is increased to 300-350 DEG C with the rate of 80-100 DEG C/min, the pressure is reduced to 10-20 MPa, after the temperature is increased to 420-450 DEG C with the rate of 50-80 DEG C/min, the pressure is reduced to 8-10 MPa, after the temperature is increased to 500-520 DEG C with the rate of 30-50 DEG C/min, the temperature is increased to 550-570 DEG C with the rate of 20 DEG C/min, the temperature and the pressure are kept for 30-50 seconds, and the drawing die is obtained through cooling. In the spark plasma sintering process, shock waves, electrons and ions generated by pulse discharge can purify and activate powder, particles can be subjected to the comprehensive action of ion discharge, electric conduction heating and pressurizing at the same time, the activation energy is reduced, the sintering time is shortened, and the growth of grains is restrained; the nucleation energy can be reduced through pulse current, the nucleation rate is increased, and fine tissue is obtained. According to the spark plasma sintering manufacturing technology, a novel metal powder formula for the bushing and the spark plasma sintering technology are adopted, and therefore the high-strength, high-rigidity and high-density die is obtained.

The invention relates to a micro-channel plate cladding glass, a micro-channel plate, and a preparation method thereof. The micro-channel plate cladding glass comprises the following components in parts by weight: 52 to 57 parts of SiO2, 0 to 2 parts of Al2O3, 1 to 4 parts of B2O3, 15 to 18 parts of Bi2O3, 5 to 7 parts of SnO2, 2 to 4 parts of In2O3, 0.5 to 2 parts of Sb2O3, 8 to 10 parts of Na2O and Cs2O, and 6 to 8 parts of MgO, CaO, and BaO. The micro-channel plate cladding glass and micro-channel plate prepared therefrom have the characteristics of non-toxicity, innocuousness, and environment-friendliness.

The invention discloses a vacuum secondary hot pressing manufacturing technology for a high-strength polycrystalline diamond drawing die. A bushing is obtained by metal powder through vacuum secondary hot pressing, the vacuum degree is 2*10-3-8*10-3 Pa, the pressing pressure is 20-45 MPa, the temperature is increased to 500-550 DEG with the rate of 20-30 DEG C/min, the temperature and the pressure are kept for 10-20min, the temperature is increased to 600-650 DEG C with the rate of 10-15 DEG C/min, the temperature is kept for 10-15 min, the pressure is kept for 15-20 min, and the drawing die is obtained through cooling. The method of vacuum secondary hot pressing is adopted, particles can be scattered and slide through the surface energy and the external pressure, pores in a sintered body are removed, and the compactness of materials is improved; elastic strain in the cold pressing process can be removed, the density of the sintered body can be increased, the elastic failure does not exist, and the adverse influences generated by size increasing after demolding are reduced; the vacuum sintering is neutral sintering of anaerobic and non-reducing gas, combination of interfaces can be improved, and the obtained drawing die bushing is closely attached to a die core and a steel bushing; the gaps of the sintered body can be fully filled with the particles through secondary hot pressing, obtained material cracks are few, and the utilization rate of the die is increased.

The invention discloses a color film substrate for an OLED and a preparation method thereof, and an OLED display device. The color film substrate includes a substrate and multiple color resist blocks,wherein the multiple color resist blocks are located on the substrate, colors of the multiple color resist blocks are not completely the same, the multiple color resist blocks respectively includes afirst color resistance portion and a second color resistance portion, the orthographic projection of the second color resistance portion on the substrate is located at the center of the orthographicprojection of the color resistance block on the substrate, and the transmittance of a material forming the second color resist portion to the light emitted by the OLED is lower than the transmittanceof a material forming the first color resist portion to the light emitted by the OLED. The color film substrate is advantaged in that the structure is simple, the OLED display device is made to be less prone to a pixel edge darkening phenomenon, uniformity of display brightness is strong, and the display effect is good.

The invention relates to a hydrogen-doped natural gas technology, and aims to provide a device and a method for testing gas component distribution in hydrogen-doped natural gas. The device comprises: a stirring kettle internally provided with a stirring paddle, wherein the inlet of the stirring kettle is respectively connected with a natural gas cylinder group and a hydrogen cylinder group through pipelines; a vertical gas cylinder, wherein at least three layers of partition plates are arranged in the vertical gas cylinder, and can be controlled by valves to be opened and closed so as to form mutually independent internal partitions; a pneumatic booster pump respectively connected with the stirring kettle and the vertical gas cylinder; a plurality of gas outlets formed in the wall of the vertical gas cylinder and connected with a chromatographic analyzer through pipelines, wherein each gas outlet corresponds to one internal partition; and a control system connected to the chromatographic analyzer, the stirring paddle and the driving motor of the pneumatic booster pump through signal lines. According to the testing device and the testing method provided by the invention, the gas component distribution of hydrogen-doped natural gas in a high-pressure gas cylinder in a station yard after long-term standing layering can be conveniently and accurately measured.

The invention discloses a 026Cr18Ni12Mo2N stainless steel forging for a nuclear power station. The 026Cr18Ni12Mo2N stainless steel forging for nuclear power station comprises the following chemical components: 0.015-0.035% of C, not greater than 1%of Si, not greater than 2% of Mn, not greater than 0.03% of P, not greater than 0.015% of S, 2-18.2% of Cr, 11.6-12.5% of Ni, 2.25-2.75% of Mo, 0.05-0.08% of N, not greater than 1% of Cu, and the balance pig iron. The invention also discloses method of manufacture. The method comprises the steps of refining raw materials; forging: forging the obtained stainless steel ingot into a stainless steel forging, wherein the stainless steel forging is subjected to main deformation at the temperature of 1000 +/-20 DEG C; and heat treatment, namely, heatingthe forged stainless steel forging to 1050-1120 DEG C, preserving heat, and then cooling with water; and detecting. According to the method adopting the abovementioned mode, the content of C and N isincreased in chemical components, the content of Cr and Ni is adjusted, and the strength of the forging is increased in material components. In the aspect of the manufacturing method, the internal stress generated in the finish forging process can also generate static recrystallization in the heat treatment process, so that the material grains are effectively refined, and the refined grains can increase the material strength.

The invention discloses a personalized mandible substitute compounded with an autologous bone. Two ends of a substitute are respectively provided with a fixing wing plate to realize connection with anatural mandible, and the upper part of the substitute is provided with a fixing groove for fixing an autologous bone; bone fusion areas are arranged in contact areas of two ends of substitute and natural mandible, the contact area of the fixing wing plate and natural mandible and the contact area between the substitute and autogenous bone and a soft tissue fusion area is arranged in the area, making contact with the surrounding soft tissue, of the substitute so as to promote fusion of the substitute and the surrounding tissue, improve the biocompatibility of the substitute and enhance the biomechanical strength of the substitute; and the rest is a mandible body supporting area. According to the invention, a problems of autogenous bone shortage, difficult shaping, poor fusion of a thermoplastic material as a mandible implant with natural bone tissues and surrounding soft tissues and the like can be solved, so that the fusion of the mandible substitute and the surrounding tissues is promoted, the healing of a wound after the substitute is implanted is accelerated, and the living quality of a patient is further improved.

The invention discloses a life element mineralization apparatus used for drinking water. The life element mineralization apparatus comprises a purified water processing apparatus, and comprises a first life element mineralization apparatus and a second life element mineralization apparatus, the first life element mineralization apparatus and the purified water processing apparatus are connected inseries, the second life element mineralization apparatus and the purified water processing apparatus are connected in series, and is connected with the first life element mineralization apparatus inseries, and the second life element mineralization apparatus is filled with a mixture of water-soluble life element crystal particles and coconut shell active carbon particles. The apparatus can simultaneously mineralize a soluble silicon element and other life necessary elements, the concentration control effect of the added element is good, and the apparatus is convenient for drinking for people.

The invention provides a Mo-contained stainless steel welding strip, a sintered flux and a single-layer electrode electroslag surfacing method, and belongs to the technical field of welding. By meansof the Mo-contained stainless steel welding strip, chemical ingredients are reasonable, the ferrite content in a single-layer electrode electroslag surfacing layer can be reduced, and the problems oflateral bending and cracking of welded parts can be reduced.