39 results about "Titanium ring" patented technology

The present invention relates to a radial vibration sandwich piezoelectric ceramic ultrasonic transducer. A piezoelectric ceramic ring is arranged between a metal inner ring and a metal outer ring, the upper end surfaces of the metal inner ring, the metal outer ring and the piezoelectric ceramic ring are in the same plane, and lower end surfaces are also in the same plane. The metal inner ring and the metal outer ring can adopt steel rings, aluminum rings, brass or purple copper rings, titanium rings, aluminum nickel copper alloy rings and titanium alloy rings. The present invention realizes the high efficiency work of a radial composite transducer through a radial prestress impressed by the inner and outer metal rings, and realizes the parameter optimization of the transducer through reasonably designing the geometry size of the inner and outer metal rings simultaneously, such as resonance frequency, frequency bandwidth as well as electromechanical coupling coefficient. The present invention can be used for the high efficiency omni-directional acoustic source underwater and all kinds of supersonic processing high efficiency supersonic source in liquid.

The invention discloses a production process of a high-strength Ti75 titanium ring. The production process comprises the following steps: materials are fed; inspection is carried out; for the first fire, 4500 T equipment is used, preheating is conducted for 1.8-2.2 hours at the temperature of 750-850 DEG C, then the temperature is increased to 1,110-1,150 DEG C, the heat preservation time is 400-460 min, and the temperature rise rate is kept at 10 DEG C / min in the temperature rise process; for the second fire, 2000T equipment is used, and heat preservation is carried out for 215-245 minutes at the temperature of 970-1,000 DEG C; for the third fire, 2000T equipment is used, and heat preservation is conducted for 215-245 min at the temperature of 930-955 DEG C; for the fourth fire, 2000T equipment is used, and heat preservation is conducted for 215-245 min at the temperature of 900-928 DEG C; for the fifth fire, 2000T equipment is used for the fifth fire, the overall remelting temperature is increased to 890-910 DEG C, and the heating time is 20-40 minutes; for the sixth fire, a 2000 T device is used, and mandrel drawing and mandrel supporter reaming are conducted at the temperature of 860-895 DEG C; for the seventh fire, heat preservation is conducted for 15-25 min at the temperature of 700-740 DEG C, and stress relief annealing is conducted; The tensile strength, the yield strength, the elongation, the shrinkage rate, the impact strength and the hardness of the Ti75 titanium ring obtained through the production process are all superior to those of an existing Ti75 titanium ring, and the Ti75 titanium ring has the advantage of being high in strength.

The invention relates to Al in welding artificial retina 2 o 3 A fixture for ceramic and titanium rings, which includes a graphite base and a graphite compact, the graphite base is provided with a boss, and a boss is provided on the boss for placing Al 2 o 3 The groove of the ceramic disc; the graphite briquetting block is provided with a fastening groove matched with the boss on the graphite base, and the top surface of the fastening groove is provided with a draw-in groove for pressing the titanium ring, Several fine-tuning windows for observation are arranged on the surrounding walls of the fastening groove on the graphite briquetting block. By observing the fine-tuning window, the position of the filling material at the connection interface can be fine-tuned, and the limit situation of the entire test piece can be observed. The invention has reasonable composition and structure, easy operation and use, reliable connection and fixation, and can avoid dislocation and unwelded defects, and is especially suitable for connecting Al in artificial retina. 2 o 3 Clamping of ceramic and titanium ring structures.

The invention provides a manufacturing method for a piece of tantalum composite board equipment; tantalum-titanium-steel or tantalum-copper-steel composite boards are taken as main materials of the tantalum equipment; a connecting pipe adopts steel lining tantalum; a sealing surface is the turned structure of titanium welding tantalum ring; titanium lining outer edge is welded on the inner titanium layer of the connecting pipe; a flange is welded on the steel pipe of the connecting pipe; after being welded, the flange welds the weld joint between the flange and the connecting pipe by silver brazing; turned sides of the titanium ring are welded on the silver brazing so that titanium is directly welded with the steel; the manner of welding vertical and annular weld joint of the tantalum equipment is as follows: when two tantalum composite boards are opposite to each other, tantalum-titanium or tantalum-copper at the welding part of two tantalum-titanium-steel or tantalum-copper-steel composite boards removes a narrow strip; a copper board or tantalum board is welded on the steel board; two steel base boards are welded; and a tantalum sticker wider than the weld joint is welded with two tantalum boards. The manufacturing method ensures that the tantalum in the tantalum composite board equipment is not directly welded with steel, so that the connection problem of tantalum and steel is solved.

The invention discloses a titanium alloy. According to mass percentage, the content of Al is 5.5-6.5%, the content of Mo is 0.5-1.5%, the content of V is 3.5-4.5%, the content of Fe is less than 0.25%, and the content of O is less than 0.15%. , and the remainder is Ti. The process method of manufacturing piston connecting rod group with titanium alloy, the first step is melting and casting ingot; the second step is forging; the third step is heat treatment; the fourth step is machining; the fifth step is ultrasonic flaw detection; the sixth step is finished product. The titanium alloy piston crown is rough machined after finish machining; the titanium alloy piston ring is surface polished; the titanium alloy piston pin is surface polished; the titanium alloy connecting rod is polished; Hair pieces, and then finishing. The invention reduces the weight of the piston system of the diesel locomotive by 35-50%, has higher strength than the steel piston pin, longer service life than the steel piston pin, and far better corrosion resistance than the steel piston pin.

The present invention relates to Al in an artificial retina 2 O 3 In the brazing and sealing method of ceramic and titanium ring, the brazing filler metal is composed of Ti powder and Ni powder, and the mass fractions of Ti powder and Ni powder in the brazing filler metal are 6-85% and 15-94% respectively. The particle size of Ti powder and Ni powder is 20~400nm. The solder obtained by ball milling is made into paste and coated on titanium ring and Al 2 O 3 On the surface to be connected of the ceramics, the parts to be welded are placed in a vacuum heating furnace, heated and kept warm, and the welding is completed. The present invention realizes the titanium ring and Al 2 O 3 The brazing connection of ceramics is obtained and a reliable connection joint is obtained. Especially suitable for Al in artificial retina 2 O 3 The connection between the ceramic and the titanium ring.

The invention relates to a soft conductive structure inside a cathode roll of a crude foil engine and a manufacturing method thereof. The structure comprises a conductive belt (4), a conductive sleeve (3), a titanium ring (6), a conductive copper ring (2), a sleeve flange (7) and connector sleeves (10). The conductive belt (4) is intertwined with pure copper threads and has connector sleeves at both ends. Through the connector sleeves, both ends of the conductive belt are respectively and fixedly connected with the titanium ring (6) and the sleeve flange (7). The surfaces of both the conductive belt (4) and the connector sleeves (10) are plated with silver or stannum. In this invention, the conductive belt is intertwined with pure copper threads, thereby the soft connection between the conductive sleeve and the surface of the cathode roll is realized, the conductivity of the conductive belt is strengthened and the conductivity uniformity of the surface of the cathode roll is improved. The soft conductive structure also overcomes the deficiency of distortions caused by vibration and thermal inflation of the conductive belt and the movability of the connecting parts, and improves the conductive efficiency and current carrying capacity. The soft conductive structure is characterized by the stable connection, convenient maintenance and processing, simple operation and high production efficiency.

The invention relates to a method for preparing a wafer locking ring. In the preparation method, a cylindrical titanium ingot is first subjected to forging treatment, first heat treatment, hot rolling treatment and second heat treatment to obtain a titanium hot-rolled piece, and then undergoes rough Turning hollows out the central part of the titanium hot-rolled piece, then performs a third heat treatment to obtain a titanium ring, and finally performs finish turning on the titanium ring according to the target size to obtain a wafer locking ring. The preparation method of the present invention adds a third heat treatment between rough turning and finishing turning, which effectively prevents the problem of large deformation in the process of transforming cylindrical hot-rolled titanium parts into titanium ring parts, and then prepares flatness ≤ The 0.1mm wafer locking ring greatly improves the yield.

The invention discloses a production process of a high-strength Ti80 titanium ring. The production process comprises the following steps: 1, cogging and forging are conducted, 4500T equipment is used, preheating is conducted at 750-845 DEG C for 1.5-2.5 hours, heating to 985-1125 DEG C, and heat preservation is conducted for 385-405 minutes; 2, 2000T equipment is used, and heat preservation is carried out at the temperature of 1000-1065 DEG C for 185-235 minutes; 3, the 2000T equipment is used, and heat preservation is conducted at the temperature of 945-995 DEG C for 185-240 min; 4, the 2000T equipment is used, and heat preservation is conducted at the temperature of 935-985 DEG C for 105-155 min; 5, the 2000T equipment is used to obtain a finished product at the temperature of 925-975 DEG C; and 6, annealing is conducted at the temperature of 755-805 DEG C. Through the production process of the Ti80 titanium ring, the tensile strength, the yield strength, the ductility, the shrinkage rate, the impact strength and the hardness of the Ti80 titanium ring in experimental data are all superior to those of standard requirements after detection and comparison, so that the requirements of various practical applications are met.

The invention discloses a high-tubular thin-walled pure titanium ring stable rolling process. The process steps are as follows: free forging performing, roughing and ring rolling. The above-mentionedhigh-tubular thin-walled pure titanium ring stable rolling process adopts free forging performing. On the one hand, the potential defects such as shrinkage cavities, shrinkage, and pores ect. in the titanium billet are eliminated, so that the titanium billet has higher mechanical properties. On the other hand, the preforming of the titanium billet makes the rolling amount of the ring rolling smaller, thereby providing conditions for one heat complete ring rolling process in a rolling temperature range of the pure titanium material while improving the rolling stability, so that the grain size of the ring can be increased; the roughing before the ring rolling can remove the surface defects to reduce the incidence of roll creeping, skull patch and ellipse when rolling the ring; in the ring rolling, a support of the ring by a carrier roller can greatly reduce the friction force, thereby improving the stability of the ring during rolling, in addition, the setting of each parameter in the ring rolling can improve the stability of the rolling, thereby reducing the incidence of roll creeping, skull patch and ellipse.

The invention relates to a preparation method of an ozone heterogeneous oxidation solid catalyst and belongs to the technical field of environment protection and chemical engineering catalysts. The preparation method includes using erionite, garnet, light shale ceramisite, pyrophyllite, expanded vermiculite and gehlenite as carriers; subjecting the carriers to pore expanding through lithium hypochlorite and bis(acetylacetone)beryllium, and adding a surfactant chlorinated dodecyl trimethyl ammonium, activating under ultrasonic action; enabling the activated carriers to be in hydrothermal reaction with composite mineralizing agent borax and potassium sulfate, catalytic active auxiliary precursor isoproscandia (III), tri(hexafluoroacetylacetone)yttrium (III) dihydrate, 1, 1, 1-trifluoroacetylacetone neodymium and lutenium chloride hydrate and catalytic activity central precursor dicyclopentadienyl titanium ring substituted salicylate complex, pyruvate iso-nicotinazone vanadium, L-molybdenum aspartate and potassium tetrachloroaurate in a hydrothermal reaction kettle under action of an emulsifier octadecyl dimethyl ethoxyammonium perchlorate; drying for removing water; firing in a muffle furnace to obtain the ozone heterogeneous oxidation solid catalyst.