191 results about "Phosphor bronze" patented technology

A phosphor bronze alloy which contains 0.4 to 3.0 weight % Ni, 0.1 to 1.0 weight % Si, 0.01 to 0.35 weight % P, 1.0 to 11.0 weight % Sn with remainder being substantially Cu.

A solar cell fabrication apparatus includes a lower belt carrying a solar cell main body and tab lead to convey the same, and an upper belt pressing the same. A phosphor bronze plate is provided to apply an urging force against upper belts towards the lower belt. A plurality of lower heater blocks and upper heater blocks to heat a solar cell main body and tab lead from below and above, respectively, and a plurality of lower cooling blocks and upper cooling blocks to cool the same are provided. Lower heater blocks and upper heater blocks are surrounded by a heat insulator along the transportation direction.

A ring-shaped flare stopper is made of a phosphor bronze plate having a thickness of 0.03 mm by sheet metal stamping. An inner periphery for defining a circular opening is formed in the flare stopper. The inner periphery has the form of the side face of a circular truncated cone. The flare stopper is so installed in a lens barrel that the inner periphery is inclined with respect to an optical axis of a taking lens unit. Since incident light is not reflected by the inner periphery of the flare stopper, the occurrence of ghost and flare is prevented. To prevent the deformation and misalignment of the flare stopper, the flare stopper installed in the lens barrel is attached to a spacer.

The present invention relates to a preparation process of phosphorus bronze-steel bimetallic bearing material in which the phosphorus content is greater than 0.1%. its preparation process includes the following steps: on the steel back of previously-prepared carbon constructional steel with required grade and thickness setting a metal or alloy transition layer with proper thickness, then uniformly spreading phosphorus bronze alloy powder with a certain phosphorus content on the steel back and making it have a certain thickness, then adopting first sintering step, first rolling step, secondary sintering step and secondary rolling step so as to obtain the invented product.

In an embodiment, a capacity control valve includes: a pressure-sensitive body 50 positioned in a third valve chamber 38; an adapter 53 provided on the free end of the pressure-sensitive body 50 having a circular seating surface; a third valve part 43 that moves integrally with a valve element 40 in the third valve chamber 38 and has a circular engagement surface that opens/closes intake-side passages 34 by engaging with and separating from the seating surface of the adapter 53; and a solenoid 60 that applies an electromagnetic drive force to the valve element 40 in the direction of closing a first valve part 41, wherein the pressure-sensitive body 50 is formed by a formed bellows made of material having greater yield stress than phosphor bronze, and the formed bellows has its diameter set smaller and its stroke longer than the diameter and stroke of a phosphor bronze bellows.

The invention relates to a high-intensity brass alloy, which is characterized in that the compositions of the weight percentage are that Zn is 15-30 percent, Al is 3.0-5.0 percent, Ni is 0.2-2.0 percent, Cr is 0-0.50 percent, Zr is 0-0.50 percent, the other content is Cu and inevitable impurity. The performance of the invention is higher or equivalent to phosphor bronze, the cost is low, and the invention is capable of replacing the phosphor bronze and partial beryllium bronze to prepare various elements. The invention guarantees the reliability, stability and long life of computers, aerospace and household appliance elements.

The invention discloses a high-performance tin-phosphor bronze strip and a production method thereof. The high-performance tin-phosphor bronze strip comprises, by weight percent, 9% to 11% of Sn, 0.03% to 0.35% of P, not larger than 0.2% of Zn, not larger than 0.1% of Fe, not larger than 0.2% of Pb and the balance copper. Through the strict control over a casting technology, a rolling technology and an annealing technology of a tin-phosphor bronze alloy, a high-performance tin-phosphor bronze strip alloy product with the tin content ranging from 9% to 11% can be produced, and the application requirement of an IT industry and an electrommunication industry for a high-elasticity, high-strength and high-hardness copper alloy can be met.

A method of treating a metallic surface comprising a copper alloy, such as phosphor bronze, whereby the metallic surface is ablated by directing a laser beam with a diameter of 200-400 μm produced by a CO₂ laser with a pulse frequency of 1200-1800 HZ onto the metallic surface, and a N₂ assist gas is concurrently applied with a pressure of 550-650 KPa co-axially with the laser beam to form an ablated metallic surface comprising microgrooves with Cu₃N present on a surface of the microgrooves, wherein the ablated metallic surface has a higher surface hydrophobicity than the metallic surface prior to the ablating.

The invention relates to a high-elasticity and high-conductivity copper alloy which comprises the following components in percentage by mass: 0.1-1% of Fe, 0.05-0.3% of P, 0.1-1.0% of Sn, 0.1-1.0% of Ni, 13-20% of Zn, 0.005-0.05% of B and the balance of Cu and inevitable impurity. The production process flow comprises the following steps: smelting, performing pull casting, performing hot rolling, performing face milling, performing rough rolling, annealing, washing with acid, performing intermediate rolling, performing solution treatment, performing precision rolling, performing aging treatment, performing shear dividing, and packaging finished products. Temperature tests, weight hanging tests, 5000-time plugging/unplugging tests and plug unplugging required maximum force tests show that the high-elasticity copper alloy prepared through the production process flow has fine stress relaxation resistance. The copper alloy produced from the components through the method has high elasticity and high conductivity, is low in cost and can be used as an elastic electric connector material instead of a tin-phosphor bronze alloy.

The invention discloses a high-elasticity low-cost tin-phosphor bronze alloy belt and a preparation method thereof. The high-elasticity low-cost tin-phosphor bronze alloy belt comprises, by weight, 0.5%-2.5% of tin, 0-1.0% of nickel, 0-1.0% of zinc, 0.05%-0.5% of iron, 0.05%-0.5% of phosphorus, 95%-99% of copper and 0-0.10% of inevitable impurities. The high-elasticity low-cost tin-phosphor bronze alloy belt meets the following grain orientation relation of I{420}/I0{420}>2, wherein I{420} is the diffracted intensity of an X ray of a {420} crystallization face on the surface of the bronze alloy belt, and I0{420} is the diffracted intensity of an X ray of a {420} crystallization face on the surface of pure copper powder. According to the high-elasticity low-cost tin-phosphor bronze alloy belt and the preparation method thereof, the component and rate of the alloy material are optimized, the content of the tin is decreased to be 0.5%-2.5% on the basis of keeping the alloy performance, scarce resources are effectively protected, and meanwhile the alloy elements such as the Sn, the P and the Zr are added; the large rolling machining rate larger than or equal to 70% is adopted during preparing, rolling passes can be decreased, and the production cost is reduced; the prepared tin-phosphor bronze alloy belt is good in elasticity and machining performance and stable in high-temperature stress-relaxation-resistance performance; and the elasticity modulus of the tin-phosphor bronze alloy belt is almost the same as that of an existing C5191 product.

The invention relates to elastic tin brass alloy material and a preparation processing method for the same and belongs to the nonferrous metal processing field. The elastic tin brass alloy material is composed of 86-89% of Cu, 0.9-1.1% of Sn, 0.5-1% of Ni, 0.05-0.5% of Co, 0.005-0.01% of Mg and rest of Zn by weight. The preparation processing method includes that a, preparing materials according to the mass percent, adding materials, smelting and casting; b, hot rolling; c, performing primary cold rolling; d, performing intermediate annealing; e, milling; f, performing secondary cold rolling; g, performing low temperature annealing. The tensile strength sigma b of the copper alloy is 400 to 900 MPa, the plastic elongation delta is 5-45%, the conductivity is 25-32% IACS, and the elasticity modulus is 120 to 125 GPa. The elastic tin brass alloy material is capable of substituting the existing tin-phosphor bronze to be broadly used for different fields, such as spring contact pieces, electric contacts, spot welding poles, relays, electrical contact components and plug-in components.

An improved musical instrument string combines the attributes of superior corrosion resistance, low stiffness, and long life during storage and end use. Superior corrosion resistance is achieved through surface treatment of wound strings with an organosilane compound, where the preferred winding is a copper alloy such as phosphor bronze, and the preferred organosilane surface treatment comprises an aminotrialkoxysilane such as N-2-aminoethyl-3-aminopropyltrimethoxysilane.

The invention relates to a high-performance complex multi-element phosphor bronze alloy material and a preparation method thereof, and belongs to the field of processing of nonferrous metal. The alloy material comprises the following components in percentage by weight: 3.9-4.4% of Sn, 0.05-0.1% of Ni, 0.05-0.2% of Zn, 0.05-0.2% of Fe, 0.02-0.08% of P, and the balance of Cu. In addition, the alloy further comprises two or more elements of Co, B and Zr. The material is obtained through such processes as smelting and casting, rough rolling, primary intermediate annealing, acid washing, intermediate rolling, secondary intermediate annealing, acid washing, finish rolling and low-temperature annealing. The method can omit a high-temperature and long-time uniform annealing process, the alloy production efficiency is improved, and the alloy production cost is greatly reduced. The alloy can replace a classic tin-phosphor bronze QSn8-0.3 alloy, and is applied to the manufacturing of such elements as contact pieces and connectors for electronic electric appliances and vehicles.

The invention discloses a high-performance tin-phosphor bronze wire and a production method thereof. The high-performance tin-phosphor bronze wire comprises the following elements in percentage by weight: 4.3-5.0 percent of Sn, 0.06-0.12 percent of P, 0-0.03 percent of Zn, 0-0.005 percent of Fe, less than 0.0.3 percent of Si, 0-0.05 percent of Ni, 0-0.005 percent of Cd, 0-0.02 percent of total impurities, and Cu in balancing amount. The materials are smelted and drawn to cast a rod blank with the diameter of 12 mm, and then the rod blank is subjected to five-pass processing. The required optimal grain size is achieved by controlling the contents of minor elements like Fe in the tin-phosphor bronze wire and adjusting the annealing temperature, heat preservation time and processing rate in the processing process, therefore, that the material performance is uniform is ensured, and the produced tin-phosphor bronze wire has uniform performance and a smooth surface, and can meet the use requirements of customers in the high-end electronic connector assembly industry.

The invention provides elastic alloy brass with high strength, relating to the field of copper alloys. The elastic alloy brass with the high strength is characterized in that the strength and elasticity of the alloy are improved through adding elements of tin and phosphorus on the basis of a copper-zinc binary alloy; the alloy brass comprises the following components in percentage by weight: 59.0-65.0 % of copper, 0.2-1.5 % of tin and 0.015-0.15 % of phosphorus as well as the balance of zinc and not more than 0.05 % of inevitable impurities; and the alloy is prepared by smelting and rolling. The elastic alloy brass with the high strength, provided by the invention, has the advantages of reasonable mixing ratio design and higher performance cost; compared with the copper content of 93.0 % in the tin-phosphorus brass, the copper content in the alloy brass is reduced by 28.0 % and domestic scarce resource copper metal is saved. The elastic alloy brass with the high strength, provided by the invention, is mainly used for manufacturing electronic appliance connectors, springs, connectors, switches, contacts and the like as well as various copper alloy parts used under the marine environment; hardness and elastic modulus which are equivalent to those of the tin-phosphorus brass are obtained; and good dezincification corrosion resistance is also obtained; and the tin-phosphorus brass can be partially replaced with the elastic alloy brass.

The invention relates to a high-performance phosphor bronze belt. The high-performance phosphor bronze belt comprises following chemical components including, by weight percent, 10.0%-13.0% of Sn, 0.1%-0.65% of Zn, 0.05%-0.5% of Ni, 0.1%-0.5% of Fe, 0.01%-0.5% of P, 0.001%-0.02% of RE, 0.005%-0.05% of B and the balance Cu. A technology method for preparing the high-performance phosphor bronze beltcomprises the following steps that a, burdening, charging, smelting and casting are conducted according to the mass percent; b, pre-blooming is conducted; c, homogenizing annealing is conducted; d, face milling is conducted; e, rough milling is conducted; f, intermediate annealing is conducted; g, acid pickling is conducted; h, intermediate rolling is conducted; i, continuous annealing is conducted; j, fine rolling is conducted; k, acid pickling is conducted; m, stretch bending straightening is conducted; n, low-temperature annealing is conducted; o, shearing is conducted; and p, packaging and warehousing are conducted.

The invention discloses a low-cost elastic brass alloy. The alloy is characterized by comprising the following components by weight percent: 69-72% of copper, 23-26% of zinc, 3.3-3.6% of aluminum, 0.1-1.0% of nickel, 0.12-0.53% of manganese and the balance inevitable impurities. The low-cost elastic brass has the same hardness, elastic modulus and elongation rate as phosphor bronze; and the strength is higher than that of phosphor bronze in the Y2 state. The product is used to prepare connectors and conduct tests such as insert and extract and monopole lifting, and the obtained parameters all conform to the national standards. Meanwhile, the preparation process of the alloy is easy, the processing method is simple and the alloy is suitable for industrialized production. The elastic brass has the similar performances to phosphor bronze and the raw material cost is only 75%-80% of that of phosphor bronze, thus the elastic brass alloy can be used in the connector field to replace the phosphor bronze alloy.

An electronic device includes printed circuit board having an electronic component and a heat dissipation module mounted the printed circuit board. The heat dissipation module includes a base with a heat absorbing plate and two elastic pieces extending from the heat absorbing plate. The heat absorbing plate thermally engages on the electronic component. The elastic pieces are fixed on the printed circuit board. The base is made of one of copper-nickel-silicon alloy, beryllium copper, a titanium copper or phosphor bronze.

An accumulator of an enclosed compressor comprises a case having a predetermined space; a suction pipe welded to the upper part of the case, to suck a refrigerant into the case; and a discharge pipe welded to the lower part of the case and connected to a compressor casing. At least one of a weld portion of the suction pipe and the upper part of the case and a weld portion of the discharge pipe and the lower part of the case is welded with phosphor bronze.

The invention discloses a production technology of a phosphor bronze belt material, comprising the following steps: a) horizontally continuous casting; b) evenly annealing; c) double-sided milling; d) cogging and rolling; e) middle annealing; f) rolling manufactured materials; g) cutting edges; h) secondary middle annealing; i) cleaning the manufactured materials; j) rolling leftover; k) annealing the leftover; l) rolling a finished product; m) annealing the finished product; n) cleaning the finished product; and o) straightening the strip shape, wherein, in the step I) of rolling a finished product, the press force of a hydraulic press cylinder of a finishing mill is 100-120 ton; and in the step m) of annealing the finished product, the temperature in the furnace is 180-200 DEG C, and the annealing time in the furnace is 3-5 hours. Because of adopting the above structure, the invention has the advantage of improving the yield strength of bronze so as to improve the material fatigue durability. The yield strength of the original annealing technology is 534, and the yield ratio is 0.85; and after the technology is improved, the yield strength is 594, and the yield ratio is 0.95 which is improved by 12%.

The invention belongs to the technical field of bronze strip manufacturing, and particularly relates to a high-uniformity tin-phosphor bronze strip preparation process. The high-uniformity tin-phosphor bronze strip preparation process comprises the following steps of S1, smelting, S2, casting, S3, milling, S4, homogenizing heat treatment, S5, cold rough rolling, S6, intermediate annealing, S7, cold intermediate rolling, S8, cold finish rolling, and S9, finished product annealing. According to the technical scheme, the smelting process can improve the component and structure uniformity of a casting blank, the gas content in melt can be effectively reduced, meanwhile, the components in a smelting furnace are uniformly distributed, and the burnout rate of alloy elements is low; and in the subsequent processing process, microsegregation forms such as intragranular segregation and grain boundary segregation can be eliminated by promoting the high-temperature diffusion process, a recrystallization structure is controlled and residual stress is reduced through a combined deformation heat treatment process, the microsegregation and stress distribution uniformity of the alloy is further improved, so that a tin-phosphor bronze strip with good structure and performance uniformity is obtained.

The invention discloses a crawling actuator based on piezoelectric drive and a working method thereof, and relates to the fields of ultrasound, MEMS and piezoelectric technology, and enables the actuator to meet the requirements of small size, fast response speed, turning motion, and load great features. The present invention comprises: a first phosphor bronze substrate, a first piezoelectric ceramic sheet, a second phosphor bronze substrate, a second piezoelectric ceramic sheet, and a connecting rod. The effect and the 60-degree angle between the two sides of the two feet of the substrate and the ground contact cause the two sides of the two feet to produce different vibration displacements under the drive of the piezoelectric ceramics, so that the two feet of the substrate produce a motion pattern in the same direction. By controlling and adjusting the input sinusoidal voltage value of the two feet, different turning radii of the actuator can be realized, and the preset travel path can be completed.

A method for increasing the resonance of an instrument such as a woodwind instrument having a cap holder inside and a pad coupled to the cap holder comprises: an agitation step for agitating a mixture of a conductive medium that contains at least one of platinum, gold, silver, copper, nickel, bronze, brass, phosphor bronze with solid silicon; a mixture heating step for heating the agitated mixture; a coagulation step for naturally cooling the heated mixture and coagulating into a solid; a mixture pulverization step for pulverizing the mixture; a mixture application step for applying the mixture to the inside of the cap holder; and a pad attaching step for attaching a pad to the interior of the cap holder after the mixture application step.