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114results about How to "Expand the range of material selection" patented technology

Near-isothermal forging method of TC17 biphase titanium alloy disc forge piece

ActiveCN101804441ASmall and uniform tissueMake up for the phase transition point errorWheelsAviationAir compressor
The invention discloses a near-isothermal forging method of a TC17 biphase titanium alloy disc forge piece, comprising the steps of: heating a TC17 titanium alloy disposable bar ingot to 30-75 DEG C below a phase change point, upsetting the disposable bar ingot into a disposable circular cake; heating the disposable circular cake to 20-60 DEG C over the phase change point, and drawing out the disposable circular cake till the length thereof returns the length of the disposable bar ingot to obtain a secondary bar ingot; heating the secondary bar ingot to 30-75 DEG C below the phase change point, upsetting the secondary bar ingot to form a secondary circular cake, then punching to form an annular blank; and heating the annular blank to 20-60 DEG C over the phase change point, heating an upper forging mold and a lower forging mold to 10-20 DEG C below the phase change point, and forging and stamping the annular blank by the upper forging mold and the lower forging mold under the pressure of 30-60mN to make the deformation degree of the annular blank reach 30-50% in the forging molds at a strain rate of 0.001s-1 to 0.01s-1, and then forming a disc forge piece on fire, wherein the heat treatment after forging is the combination of solution treatment and ageing treatment. The disc forge piece forged by using the method has ideal electrical plating basket structure and high performance and is suitable for manufacturing forge pieces of an air compressor chassis, a turbine disc and the like of an aero-engine.
Owner:GUIZHOU ANDA AVIATION FORGING

Approximate isothermal forging method of BT25 two-phase titanium alloy disk forge piece

ActiveCN101829749ASmall and uniform tissueMake up for the phase transition point errorMetal-working apparatusFurnace typesIngotTurbine
The invention discloses an approximate isothermal forging method of a BT25 two-phase titanium alloy disk forge piece. The process comprises the following steps of: heating a primary BT25 titanium alloy rod ingot to be below a phase transformation point by 30-75 DEG C and upsetting into a primary cake; heating the primary cake to be above the phase transformation point by 20-60 DEG C and drawing to return to the length of the primary rod ingot to obtain a secondary rod ingot; heating the secondary rod ingot to be below the phase transformation point by 30-75 DEG C, upsetting into a secondary cake and then punching into a ring blank; heating the ring blank to be above the phase transformation point by 20-60 DEG C, heating an upper forging die and a lower forging die to be below the phase transformation point by 10-20 DEG C, wherein the upper forging die and the lower forging die forge the ring blank by using the pressure of 30-60MN to ensure that the deformation of the ring blank in the forging dies reaches 30-50 percent by a strain rate of 0.001s<-1>-0.01s<-1> to form a disk forging piece by once heating, and heat treatment after forging adopts twice annealing treatment. The disk forging piece forged by using the method has better ideal network texture and high property, thus the method is suitable for manufacturing forging pieces such as compressor disks, turbine disks, and the like of aircraft engines.
Owner:GUIZHOU ANDA AVIATION FORGING

Corrosion protection method of fluoride molten salt and/or chloride molten salt and application of chrome

The invention discloses a corrosion protection method of fluoride molten salt and / or chloride molten salt and the application of chrome. The corrosion protection method comprises the step that chrome is added into a fluoride molten salt and / or chloride molten salt system served by stainless steel or corrosion-resistant alloy. The use amount of the chrome meets the requirement that the chrome exists all the time in the protection process. The corrosion protection method is simple, feasible, safe, environmentally friendly, easy to operate and control, and remarkable in effect; by means of the corrosion protection method, the corrosion speed of the high-temperature fluoride molten salt and the chloride molten salt can be decreased remarkably, especially intergranular corrosion of stainless steel can be effectively restrained and relieved, and the service life of the stainless steel in the high-temperature fluoride molten salt and the chloride molten salt is prolonged; in addition, by means of the corrosion protection method of the fluoride molten salt and / or the chloride molten salt and the application of the chrome, the material selection range of alloy structure materials used for fluoride molten salt and chloride molten salt media can be broadened; meanwhile, the unique advantages of the molten slat can be utilized, and the molten salt can serve as novel high-temperature heat transfer and storage media to be applied and popularized in the field of high-temperature energy.
Owner:上海联和日环能源科技有限公司

Light type rapid splicing warm box

The invention relates to a light type rapid splicing warm box. The light type rapid splicing warm box comprises six face heat preservation plates, four box cover wrapping corners, four box opening wrapping corners, four box bottom wrapping corners, four box cover side strips, four box opening side strips, four vertical side strips and four box bottom side strips; the four box cover side strips, the four box cover wrapping corners and the top face heat preservation plate form a box cover; the four box bottom side strips and the four box bottom wrapping corners form a box bottom ring frame, the four side face heat preservation plates are inserted in four box bottom inserting grooves of the box bottom ring frame correspondingly, the bottom face heat preservation plate is flatly placed on the protruding portion of the top face of the box bottom ring frame, and the four vertical side strips wrap four external corners formed by the four side face heat preservation plates correspondingly; the four box opening side strips and the four box opening wrapping corners form a box opening ring frame, the tops of the four side face heat preservation plates are located in the four box opening inserting grooves in the box opening ring frame correspondingly, and a vertical seal inserting groove used for filing of a seal strip is formed in the top face of the box opening ring frame; the warm box is small in weight, and the needed heat preservation plates do not need to be slotted.
Owner:SOLEE WUHAN SCI & TECH +1

Bamboo blinds and method for making

This invention discloses one kind of bamboo louver and its manufacture method; The bamboo louver piece rotary cutting veneer also at least has two including the bamboo to turn on lathe cuts the bamboo veneer, or has the multilayer to turn on lathe cuts the bamboo clappers in the thickness direction superimposition, the thermo-compression agglutination; The length direction opens has relates to the tenon docking agglutination to become; Its manufacture method including turns on lathe cuts, opens dryly, the agglutination, operates the tenon, the joint, the rough grinding, correct grinding and so on craft step; This invention uses the bamboo veneer after the bamboo which turns on lathe cuts obtains, has overcome the bamboo curving because of the difficult problem which but cannot use, simultaneously also changed the bamboo partial performance, causes the bamboo louver piece not to be easy to distort, opens relates to the tenon to refer carried forward theoretically may enable the bamboo agglutination plank the length to achieve wants the length, causes the person and the surface street window all can use the bamboo louver; Turns on lathe through the control cuts the bamboo veneer the superimposition layer, enable the louver piece also to have the certain flexibility in in the maintenance intensity situation, but uses this method production the bamboo louver piece, first expanded the bamboo raw material selection scope, second has solved the raw material, basic did not waste, third was the craft simple production cost is low.
Owner:傅玉双

Novel axial plunger pump

The invention discloses a novel axial plunger pump. According to the technical scheme, the novel axial plunger pump is characterized by comprising an end cover, a front shell, a pump shaft arranged inside the front shell, a rear shell, a swash plate and a cylinder, wherein the swash plate and the cylinder are installed inside the rear shell; the end cover, the front shell, the rear shell and the cylinder are sequentially and fixedly connected, and the swash plate is connected to the end, back on to the shell, of the pump shaft; a cross-shaped swinging plate and a plunger assembly are further arranged inside a plunger pump; a plunger hole, a valve hole, a pressing-out valve set and a pressing-in valve set are arranged inside the cylinder, the pressing-out valve set and the pressing-in valve set are located in the valve hole, one end of the plunger assembly is embedded in the plunger hole, and the other end of the plunger assembly is connected with the cross-shaped swinging plate; the cross-shaped swinging plate abuts against the swash plate in a contact manner; and due to the fact that in the prior art a retainer plate and a piston shoe are embedded into a whole through a piston shoe plate, and the piston shoe and the a plunger bulb are embedded into a whole through the piston shoe plate, lateral force of the cylinder and a plunger base is decreased, meanwhile, the tilt angle of the swash plate is increased, the return distance of the plunger base is enlarged, displacement of the plunger pump is improved, the efficiency of the plunger pump is improved, and the design of the cylinder is further simplified.
Owner:HANGZHOU LVJU TECH +1

Plate type ballastless track bed with reverse pressure device

The invention relates to a plate type ballastless track bed with a reverse pressure device and belongs to the technical field of rail transportation. The problems that for an existing ballastless track, a track plate and an under-plate filling layer are more likely to strip and bulge are solved. The plate type ballastless track bed includes a base, a track plate is arranged above the base, an under-plate filling layer is arranged between the track plate and the base, and a limiting structure is also arranged between the track plate and the base. The plate type ballastless track bed further includes the reverse pressure device, and the reverse pressure device includes a reverse pressure elastic component, a connecting piece and an anchoring piece; the anchoring piece is fixedly arranged on the base, the reverse pressure elastic component is arranged between the connecting piece and the anchoring piece, or one end of the reverse pressure elastic component acts on the track plate, the other end of the reverse pressure elastic component acts on the connecting piece, and the connecting piece is connected with the base through the anchoring piece. According to the plate type ballastless track bed with the reverse pressure device, the problem that the track plate is stripped off from the under-plate filling layer can be effectively avoided, the vibration reduction and noise reduction performance is good, the service life is long, and the plate type ballastless track bed with the reverse pressure device can be widely used in various high-speed railway ballastless track lines.
Owner:QINGDAO CREATE ENVIRONMENT CONTROL TECH +1

Preparation method and application of high-purity chloride molten salt

InactiveCN109207128AMitigates corrosive effectsEasy to prepareHeat-exchange elementsPotassiumImpurity
The invention relates to a preparation method of a high-purity chloride molten salt. The method is: providing an untreated chloride molten salt having a purity of 95% or more; heating the untreated chloride molten salt to a liquid state to obtain a molten chloride molten salt; adding an active metal into the molten chloride molten salt, standing to allow the active metal and water and oxidizing impurities in the untreated chloride molten salt to respectively perform redox reaction to generate precipitates, wherein the active metal comprise at least one of lithium, potassium, calcium, sodium, magnesium, aluminum, zinc and iron; the oxidizing impurities comprise OH<->, SO4 < 2->, SO4 < 2->, NO3 < 3-> and NO2 < 2->; filtering and removing residual solid-state active metals and precipitates inthe molten chloride molten salt so as to obtain the high-purity chloride molten salt, wherein the high-purity chloride molten salt contains the dissolved active metals. The invention also relates toapplication of the high-purity chloride molten salt. The preparation method of the high-purity chloride molten salt provided by the invention is simple, is safe and solves the problem that a structural material is easy to corrode in the molten salt and restricts the industrial large-scale application of the chloride molten salt.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI

Integrated sealing elastic keyboard pad

The invention discloses an integrated sealing elastic keyboard pad which comprises a plurality of key pads and a plurality of light guide pillars. A plurality of key pads and a plurality of light guide pillars are combined into an integrated structure; each key pad is positioned on a corresponding key on a keyboard; each light guide pillar is positioned on a corresponding indicating lamp on the keyboard; the light guide pillars are of a hollow structure; the ends of the light guide pillars, which are connected with the indicating lamps, are open ends; and the other ends of the light guide pillars are closed ends. According to the integrated sealing elastic keyboard pad, a plurality of parts are combined into the integrated structure and a protection sheet is saved, so that the materials are saved, the possibility of generating gaps when the parts are matched is also avoided and the integrated sealing elastic keyboard pad has a better sealing effect; in the manufacturing process, the integrated sealing elastic keyboard pad can be formed in one step by adopting a conventional compression molding or injection molding process, so that the manufacturing process of the integrated sealing elastic keyboard pad is simplified and the manufacturing cost is reduced; in the using process, the integrated sealing elastic keyboard pad is used as one part, so that the defects of large number of the parts of a conventional keyboard pad and fussiness for installation are overcome and the integrated sealing elastic keyboard pad is convenient to use; and the light guide pillars are of a hollow structure, so that the light guide rate of the integrated sealing elastic keyboard pad is improved, the material selection range can also be enlarged and the hollow structure of the light guide pillars is beneficial for reducing the production cost.
Owner:GSK CNC EQUIP

Method for manufacturing deep-groove U-shaped iron for loudhailer

The invention relates to a method for manufacturing a deep-groove U-shaped iron for a loudhailer, which is characterized by comprising the following steps: 1, calculating the weight of a finished product according to the size of the product and intercepting bar steel materials with equal weight; 2, performing forging for the first time, i.e. forging and pressing the intercepted bar steels to proper size; 3, performing the forging for the second time, i.e. providing two sections of different diameters in a die cavity of an adopted die and forging one end of a processed member into a straight cylinder part with a smaller diameter; 4, performing the forging for the third time, i.e. forging the other end of the processed member into a chassis with a larger size by using a special die, and arranging a groove on the chassis; and 5, stretching and shaping the processed member by using a stretching die and stretching the processed member into a setting size of the U-shaped iron with the deep groove to obtain the finished product. By the process, the invention can effectively solve the problems of waste excess materials, material management expenses, and the like, and greatly reduce the cost. Because of the short manufacture time, the invention can realize mass production with beautiful finished product and easy control for the precision, and improve the quality and the competitiveness of the product.
Owner:葛锦明

Atomization unit and atomization device

PendingCN112493558AGood for thinning settingsFully contactedTobacco devicesEngineeringMechanical engineering
The invention discloses an atomization unit and an atomization device. The atomization unit comprises a net-shaped U-shaped heating piece, a supporting and fixing base with a central through hole, liquid guide cotton and a side sealing piece. The supporting and fixing base comprises a base and a supporting column body arranged on the base, and a center through hole penetrates through the supporting column body and the base. A U-shaped notch is formed in the side face of the supporting column body. The U-shaped heating sheet is arranged in the notch and abuts against the base; the liquid guidecotton wraps the outer side surface, far away from the central through hole, of the U-shaped heating sheet; the side sealing piece is matched in the notch to fix the liquid guide cotton between the side sealing piece and the U-shaped heating piece; and at least one liquid guide hole communicated with the liquid guide cotton is formed in the side sealing piece. According to the invention, the heating body is supported and fixed on the supporting and fixing base in a lateral assembly manner, and the liquid guide cotton and the heating body are fixed on the supporting and fixing base through thelateral sealing piece, so that the liquid guide cotton is in full contact with the heating body and is prevented from being extruded and deformed; thinning arrangement of the heating body is facilitated, and the material selection range is expanded.
Owner:SHENZHEN HUACHENGDA PRECISION IND CO LTD
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