57results about How to "Elongation stability" patented technology

The invention discloses a tension control system of an epicyclic gear tension roll leveler, which comprises an inlet pull tension gage and an inlet tension feedback device, an outlet pull tension gage which is provided in the outlet of the leveler for measuring the strip tension in the outlet, an outlet tension feedback device for feedback the strip tension in the outlet which measuring by the outlet pull tension gage, a tension control device for receive the strip tension in the outlet which is feedback from the outlet tension feedback device. The roll-force, the elongation and the speed of the leveler can be definite by the association of strip tension in the inlet and outlet. The three key parameters comprises the roll-force, the elongation and the speed of epicyclic gear tension roll leveler, the coordinate cooperated controlled can be constructed among the three key parameters. According to the addition of tension in outlet with the outlet pull tension gage by the technical scheme of the invention, meanwhile the stable elongation, roll-force and tension control can be realized, and the order of stable strip steel property and shape can be achieved.

This invention relates to a method for thermal treatment of high-efficiency and high-performance low-pressure die casting A356 alloy wheel. The method comprises: performing solid solution treatment at 535-545 deg.C for 5-7 h, quenching, performing low-temperature pre-aging treatment, and then performing aging treatment at 175-185 deg.C for 3-5 h immediately. The method has such advantages as shortened solid solution treatment time, shortened aging treatment time, high strength of low-pressure die casting A356 alloy wheel, shortened thermal treatment period, increased production efficiency, and improved mechanical properties of low-pressure die casting A356 alloy wheel.

The invention discloses a production method of natural cellulose membranes, comprising the following steps: (a) immersion; (b) squeezing; (c) grinding; (d) maturing; (e) etiolation; (f) solution; (g) film formation; (h) desulfuration; (i) bleaching; (j) plastification; and (k) drying. The production method has the advantages of mild reaction condition, short spacings among the prepared natural cellulose membranes, stable expansion rate and tensile strength, proper stiffness and flexibility, better colour and luster, good transparence, high hygiene property, and the like, improves the surface property of paper through the plastification, in particular enhances the smoothness of paper surfaces, improves the printability, reduces the deformability of paper and the moisture absorption, thereby reaching the new requirement of modern printing and packaging.

A stick that is excellent in shock absorption and is also excellent in stability is provided.

A stick body is provided with a telescopic extension pipe formed by fitting an outer tube and an inner tube together in a nesting manner. Inside the extension pipe, a velocity-dependent damper that damps the relative sliding movement between the outer tube and the inner tube, and a compression coil spring that concentrically fits onto the damper and urges the extension pipe so as to be extended are connected in parallel. According to such a stick, the shock transmitted to the hand can be mitigated as the compression coil spring contracts upon landing. Also, since the damper suppresses unwanted vibration of the extension pipe, the length of the stick quickly becomes stable after landing, allowing the user to keep stable balance with the stick.

The invention discloses a preparation method of a high-heat-conductivity type tire vulcanization capsule. The preparation method of the high-heat-conductivity type tire vulcanization capsule belongs to the technical field of tires, and comprises the following steps of (1) compounding the components according to the matching ratio: 95 parts of butyl rubber, 4 to 5 parts of chloroprene rubber, 15 to20 parts of N375 carbon black, 35 to 45 parts of acetylene black, 7 to 15 parts of graphene, 7 to 10 parts of alkane oil, 0.5 to 1.5 parts of stearic acid, 5 to 7 parts of zinc oxide, and 8 to 10 parts of resin; (2) primarily mixing; (3) filtering rubber; (4) secondarily mixing; (5) forming; (6) vulcanizing; (7) polishing; and (8) inspecting a finished product. According to the preparation methodof the high-heat-conductivity type tire vulcanization capsule provided by the invention, on the basis of ensuring the stability of various physical and mechanical properties, a heat conductivity coefficient is further improved, so that the aims of saving energy and reducing cost are achieved.

The invention discloses a device for machining a copper foil hole through a laser. The device for machining the copper foil hole through the laser comprises a control system, a laser device and a motion system. The control system is used for controlling the motion system to work. The motion system is used for driving copper foil to pass through a laser punching point of the laser device. The motion system comprises a copper foil conveying mechanism and a supporting frame. The top of the supporting frame is provided with a punching worktable. The copper foil conveying mechanism is used for making the copper foil sequentially pass through the punching worktable. The device for machining the copper foil hole through the laser further comprises a tension sensor. The tension sensor is used fordetecting the tension on the copper foil in the conveying process of the copper foil, and the data output end of the tension sensor is connected with the signal input end of the control system. The control system controls a working state of the copper foil conveying mechanism according to tension data obtained by the tension sensor. The device for machining the copper foil hole through the laser is used for conducting laser punching machining on the copper foil, and the obtained hole in the copper foil can be made to have higher position precision.

The invention discloses ship plate steel with thickness not greater than 100mm and yield strength of 390MPa and a preparation method. The ship plate steel comprises C, Si, Mn, P, S, Nb, V, Al, Ti, Mo,Cr, Cu, Ni, and the balance Fe and impurities. The preparation method comprises the following steps: heating a continuous casting slab which comprises the same components with the ship plate steel; the continuous casting slab is sequentially processed by cooling through first laminar flow, air cooling and cooling through second laminar flow after being subjected to two-section type rolling; thenthe continuous casting slab is cooled through air until room temperature is reached, thus obtaining the ship plate steel. The ship plate steel has the obvious advantages that the thickness of the shipplate steel is not greater than 100mm; the yield strength is 390MPa; the low-temperature toughness is outstanding; in addition, the component design is simple; the welding performance and the corrosion resistance are outstanding; the comprehensive mechanical property is high.

The invention discloses a production method of a preservative natural cellulose membrane. The method comprises the following steps: a-(1) soaking, a-(2) squeezing, a-(3) crushing, a-(4) maturing, a-(5) yellowing and a-(6) dissolving the cellulose; b-(1) soaking, b-(2) squeezing, b-(3) crushing, b-(4) yellowing and b-(5) dissolving chitin; c-(1) mixing viscose; c-(2) forming a membrane; and c-(3) desulphurizing, c-(4) bleaching, c-(5) plasticizing and c-(6) drying the membrane. The reaction conditions of the method disclosed by the invention are mild; and the prepared preservative natural cellulose membrane has small space, stable elongation rate and tensile strength, proper stiffness and flexibility, relatively good color and luster and transparency, high hygiene property, antibacterial and bacteriostatic characteristics and the like.

The invention relates to an economic type duplex stainless steel with a phase change plastification effect, belonging to the technical field of steel and iron alloy materials. The economical type duplex stainless steel comprises the following components in percentage by weight: not more than 0.03 percent of C, not more than 0.03 percent of S, not more than 0.03 percent of P, 19.0-21.0 percent of Cr, 8-12 percent of Mn, 0.1-0.5 percent of Ni, 0.15-0.35 percent of N, not more than 1.0 percent of Si, 0.001-0.01 percent of B, 0.005-0.20 percent of rare earth Ce or Y and the balance of Fe. A conventional melting process method is adopted and comprehensive ingredients are melted, are poured and formed, and are subjected to solution treatment, thus obtaining the economical type duplex stainless steel with quite good phase change plastification effect and elongation.

The invention relates to coarse spinners, in particular to a coarse spinner with a yarn tension detection function. The coarse spinner with the yarn tension detection function comprises a feeding device, a drafting mechanism, a twisting mechanism and a winding mechanism. The feeding device is formed by a set of guide bar rollers in a connection mode, the drafting mechanism is formed by a set of rollers in a connection mode, the twisting mechanism comprises a flyer, a false twister and an upper keel, the winding mechanism comprises a bobbin, a bobbin gear and a lower keel, the bobbin is connected to the bobbin gear, and the bobbin gear is mounted on the lower keel. The coarse spinner with the yarn tension detection function is characterized in that at least three tension sensors used for detecting yarn tension on line are further arranged between the drafting mechanism and the twisting mechanism. The coarse spinner with the yarn tension detection function can detect the yarn tension on line, and further controls the speed ratio of a main motor and a variable frequency motor, the purpose of adjusting the tension of coarse yarn is achieved, and the coarse spinner with the yarn tension detection function is simple in structural design and easy to achieve.

The invention relates to a side-form hoisting type road wrecker. The road wrecker comprises a lifting type slewing bearing, a track arm, a cargo fork frame regulation controller, a cargo fork frame and at least two cargo forks, wherein the lifting type slewing bearing is mounted on a big arm at the front end of a second-class automobile chassis; the track arm is horizontally assembled above the lifting type slewing bearing and is of a linear type, and a track cavity is formed in the lower end of the track arm; the cargo fork frame regulation controller is assembled into the track cavity and isin transmission connection with a first telescopic mechanism; the cargo fork frame is arranged below the cargo fork frame regulation controller and is connected with the cargo fork frame regulation controller, the cargo fork frame comprises two telescopic arms which are vertically arranged at intervals, and cargo fork beams are respectively fixed at the lower ends of the two telescopic arms; andthe cargo forks are uniformly distributed below the two cargo fork beams and are respectively connected with rotation systems on the corresponding cargo fork beams. The side-form hoisting type road wrecker has the advantages that the structural design is reasonable, the operation and the use are convenient, vehicles or barriers can be hoisted, transferred and loaded at any angles, the diversifiedfunctions are realized, and the wrecker has multiple functions and is high in working efficiency and relatively strong in practicability.

The invention discloses a continuous casting and rolling production technique for copper rods. The production technique comprises the following steps: A) a plurality of pieces of waste red copper are added in an open hearth for refining; B) qualified copper liquid after refining is discharged out, and flows in a casting ladle through a flowing groove; in the casting process, the temperature of copper water in the casting ladle is 1,110-1,130 DEG C, and the oxygen content is 140-160 PPM; C) the copper liquid in the casting ladle passes through a gate; a stainless steel casting nozzle is continuously and evenly introduced in a crystallization recess of a casting wheel, and is strongly cooled by cooling water for crystallizing; crystals are increased continuously along with the rotation of the casting wheel; D) casting blanks are separated from the casting wheel; E) the unqualified casting blanks are cut off by flying scissors; two acute angles at the upper parts of the casting blanks are removed; F) the casting blocks enter a rolling machine to be rolled into the copper rods; G) oxidization layers on the surfaces of the rolled copper rods are removed through a cleaning and cooling pipe; the temperature is reduced below 80 DEG C; H) the cleaning and cooling pipe is dried through a compressed air spray nozzle, and is conveyed to a rod winder by a clamping roller for rod winding . The production technique can produce the copper rods by using the plurality of pieces of waste copper; the produced copper rods have good quality.

The invention discloses a production method of colorful natural cellulose membranes. The production method comprises the steps of cellulose dipping, alkali cellulose squeezing, alkali cellulose smashing, alkali cellulose aging, alkali cellulose yellowing, cellulose sulphonate dissolving, color paste type selecting and matching, coloring viscose preparing, viscose film forming after coloring, sulfur removing, bleaching, softness improving and drying. According to the method, the reaction condition is mild, viscose with different properties can be colored, the difference between widths of the colorful natural cellulose membranes is small, elongation and the tensile strength are stable, and the membranes have the advantages of having suitable stiffness and softness and good color and transparency, being high in hygiene level, and resisting and inhibiting the bacteria.

The invention discloses an anti-rust processing device after hardware workpiece ultrasonic cleaning. The anti-rust processing device comprises an oil immersing groove, and a ball screw, a sliding railand a material cage which are hung above the oil immersing groove. A nut of the ball screw is fixedly connected with an upper base block. The bottom of the upper base block is fixedly connected witha first hinging supporting seat and a second hinging supporting seat. A first connecting rod and a second connecting rod are respectively hinged to the first hinging supporting seat and the second hinging supporting seat. The first connecting rod and the second connecting rod are hinged to a third hinging supporting seat. The third hinging supporting seat is fixedly connected with a fastening piece. The fastening piece is connected with a sleeve in a threaded mode. The sleeve is internally provided with an elastic element. The elastic element abuts against a sleeving rod. The sleeving rod penetrates through the sleeve, and is hinged to a fourth hinging supporting seat. The fourth hinging supporting seat is fixedly connected with a lower base block. The anti-rust processing device moves inthe direction of the sliding rail by the lower base block, and immersing and taking out operation is well conducted. The material cage is driven to rotate by driving a stepping motor, and spin-dryingis well achieved. Traditional manual oil immersing and spin-drying procedures are replaced, and mechanical and automatic operation is achieved.

The invention discloses a continuous casting and continuous rolling production process for a low-oxygen copper rod. The continuous casting and continuous rolling production process for the low-oxygencopper rod comprises the following steps: smelting: putting an electrolytic copper raw material into a reflecting melting furnace and melting into a copper liquid; performing heat-preserving treatment: conveying the copper liquid into a heat-preserving furnace and heating the heat-preserving furnace; performing continuous casting treatment: conveying the copper liquid into a continuous casting machine and casting the copper liquid into a copper ingot; coating the surface of the copper ingot with one layer of anti-oxidation lubricating oil rapidly and uniformly; rolling the copper ingot into acopper rod by a continuous rolling machine; enabling the rolled copper rod through a cleaning cooling pipeline and reducing the temperature to be below 80 DEG C; scrubbing the anti-oxidation lubricating oil on the surface of the copper rod and waxing the surface; conveying the copper rod to a rod winding machine and winding; and packaging and inspecting, delivering by a travelling crane, weighingand putting into storage. The extension rate of the produced low-oxygen copper rod is increased, the resistivity is reduced, the extension rate and the resistivity are stable, and the quality and theproduction efficiency of products are improved.

The invention belongs to the technical field of printing equipment, and particularly relates to a high-speed wide full-color water-based ink-jet printing mechanism for a reel base material. The high-speed wide full-color water-based ink-jet printing mechanism comprises a rack, a jet printing cylinder and a compression roller are rotationally mounted on the rack, a jet printing assembly is arranged on the rack and located above the jet printing cylinder, and a drying device is arranged on the rack. According to the high-speed wide full-color water-based ink-jet printing mechanism for the reel base material, the jet printing cylinder is adopted for conveying the base material, stability is improved, the width of the base material can exceed 1 m, the conveying speed of the base material is high and exceeds 100 m/min, a cooling structure is arranged in the jet printing cylinder and is used in cooperation with the drying device, the temperature of the surface of the jet printing cylinder and the temperature of the base material of the jet printing cylinder are kept constant, the elongation of the base material is stable, and four-color or multi-color unbiased registration based on the water-based ink is achieved.

The invention belongs to the technical field of printing, and particularly relates to a composite printing machine. The machine comprises an unwinding unit, a base material receiving unit, a unit printing mechanism, a digital printing mechanism, a unit gloss oil applying mechanism and a winding unit which are sequentially arranged. The digital printing mechanism comprises a jet printing rack, a jet printing roller and a pressing roller are rotatably mounted on the jet printing rack, and a jet printing assembly is arranged at the position, located above the jet printing roller, of the jet printing rack. According to the composite printing machine, spot color printing is conducted on a printing base material through the unit printing mechanism, digital printing is conducted on the printing base material through the digital printing mechanism, the printing base material is wound around the jet printing roller for ink jet printing in the digital printing process, and the printing base material is good in conveying stability and high in printing precision and is matched with the unit printing mechanism to achieve complementary advantages; and wide-width high-speed full-color printing of the printing base material is achieved, the width of the base material can exceed 1 m, and the conveying speed of the base material is high and exceeds 100 m/min.

The invention relates to the technical field of non-ferrous metal processing, in particular to a preparation method of a high-strength super-long cupronickel alloy capillary tube, which comprises a material preparation stage, a joint pulling and scalping stage, a stretching stage, a cleaning stage and a finished product annealing stage, and solves the problems of low efficiency, long period and easiness in environmental pollution during production of the existing cupronickel alloy capillary tube. By utilizing the new production method, the production efficiency of the cupronickel alloy tube is improved, the productivity is improved, meanwhile, the steps of intermediate annealing and acid pickling in the capillary tube production process are not needed, and the environmental pollution is reduced while the energy consumption is reduced.