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81 results about "Ball size" patented technology

Technology for preparing pressure resisting titanium alloy half ball for bathyscaph manned ball

ActiveCN104923603AAdvantages of dimensional accuracy controlAdvantage under pressureShaping toolsPunchingThick plate
The invention discloses a technology for preparing a pressure resisting titanium alloy half ball for a bathyscaph manned ball. The technology comprises the steps that firstly, a TC4 ELI titanium alloy thick plate for punching is cropped to be round according to the size of a target ball to serve as a plate blank to be punched; secondly, a forming die is designed according to the size of the target ball and a TC4 ELI titanium alloy material expansion coefficient; thirdly, the plate blank to be punched and the surface of the forming die are coated with an anti-oxidation lubrication coating; fourthly, the plate blank to be punched is heated to 850 DEG C to 930 DEG C, and insulating is carried out for 2-4 hours; fifthly, the heated plate blank to be punched is punched on a lower die of the forming die, the temperature drop is strictly controlled in the punching process, and when the temperature of the plate blank to be punched is reduced to be below 700 DEG C, punching is stopped, the plate blank to be punched is returned to a furnace again, secondary punching is carried out, and the process is executed circularly till the plate blank to be punched is punched into the half ball. Compared with multi-scalloped-segment installing and welding, a large number of weld lines can be reduced, and obvious advantages on the ball size precision control, ball pressure bearing and safety performance are achieved.
Owner:BAOJI TITANIUM IND CO LTD +2

Automatic steel ball sorting machine

The invention discloses an automatic steel ball sorting machine which comprises a machine frame, a ball storage groove, an extensible ball door device, an oblique sorting groove, a knife foot module and a qualified ball receiving device. The extensible ball door device comprises a ball door and a lifting air cylinder. The sorting knife foot module comprises a screw supporting sleeve, a knife foot and a turning handle. The automatic steel ball sorting machine utilizes the air cylinder to drive the ball door to lift so as to achieve discharging and rolling ball interruption, accordingly the number of the steel ball discharged each time is equal, and the problem that the excessive steel balls roll out of the ball storage groove under the gravity effect and accordingly the balls are clamped by the knife foot portion can be avoided. When the steel balls pass through the knife foot, the distance between the knife foot and the bottom of the sorting groove is adjusted to be equal to the standard ball size, accordingly large balls are intercepted by the knife foot when passing through the knife foot, and standard balls roll into the receiving device through the knife foot. By means of the automatic steel ball sorting machine, all unqualified large balls can be sorted out, and the large balls can be prevented from damaging a refining mill.
Owner:TSUBAKI HOOVER (CHONGQING) CORP LTD

Method for determining rod diameter of rod mill

InactiveCN102172555AEasy way to determineAssays are lengthy and complexGrain treatmentsCompressive strengthBall diameter
The invention relates to a method for determining the rod diameter of a rod mill, belonging to the field of ore grinding and levigating technology. The method provided by the invention comprises the following concrete steps: (1) measuring the uniaxial compressive strength alpha of the ore to be milled, as a mechanical basis for determining the accurate rod diameter; (2) performing screen analysis of particle size for the feeding material of the rod mill, and determining the fraction d'f and average particle size for ensuring the screening rate of 95%; (3) converting the practical working conditions of the rod mill into the working conditions of a ball mill in the same conditions, and calculating the ball diameter in the conditions by using a half-theory formula of ball size (C.G.S system); (4) correcting the calculated ball diameter according to the breaking experience and ore milling characteristics of the steel rod, and calculating the required rod diameter through the formula D(R-opt)=(0.48-0.5)D'b; and (5) performing ore milling contrast test with the rod diameter greater than and less than D(R-opt), and determining the accurate rod diameter of the rod mill according to the ore milling result. Compared with the prior art, the method is simple and convenient, is accurate in calculation result, has low labor intensity of workers and shortens the test period.
Owner:YUNNAN UNIV

Resistive Support Mechanism

A motion support mechanism, for example for a chair, joined to a mounting surface and to a base for providing resistive support to the mounting surface as the mounting surface undergoes one or both of rotational and tilt movement relative to the base. The motion support mechanism includes a support bearing connected to the mounting surface and to the base which permits one or both of tilting and rotational motion of the mounting surface relative to the base, a pivot ball sized fixedly attached to a portion of the base, and, a resistance cartridge fixedly connected to the mounting surface such that the resistance cartridge undergoes movement relative to the base and applies a resistive force on the base as the mounting surface undergoes one or both of rotational and tilt movement. The resistance cartridge includes a cartridge housing and a resilient member in contact relation with the pivot ball and with a wall of the housing such that the resilient member is compressed by the relative movement between the resistance cartridge and the pivot ball to thereby provide the resistive support to the mounting surface. Preferably, the resistive support also provides a dampening feature, for example by way of the resilient member being formed from a viscoelastic material. A means for varying the resistance applied is provided that permits the distance between the bearing surface and the pivot ball to be varied.
Owner:CORECHAIR

Method of producing magnesium-silicon-calcium fertilizer from submerged arc furnace molten asbestos tailings

The invention discloses a method of producing a magnesium-silicon-calcium fertilizer from submerged arc furnace molten asbestos tailings. The method includes: firstly adding asbestos tailings with graphite to a ball mill for ball-milling; controlling the carbon dosage at a mass percent of 2.4%; selecting graphite with a carbon content of 85% for carbon blending; conducting ball-milling on the materials to 100 meshes by the ball mill and then performing discharging; employing a dry ball press machine for ball pressing on the materials to a ball size of 30-100mm; adding the balls into a submerged arc furnace for smelting by a charging system, maintaining a molten state for 30min, and pouring the slag liquid out of the furnace; slowly cooling the slag liquid and then letting the cooled slag liquid enter the ball mill for levigating to 150 meshes, in the discharging process, firstly separating iron, cobalt and nickel by a 0.4T magnetic separator, then subjecting the material to powder sifting by a 150mesh drum screen, and adopting the oversize product as the special tailing for selection of metal chromium; and taking the undersize product as the raw material of medium and trace elementfertilizers, applying the undersize product as powder directly to farmland, or granulating the undersize product and then using the obtained granules as medium and trace element fertilizers.
Owner:北京璞域环保科技有限公司

Resistive support mechanism

A motion support mechanism, for example for a chair, joined to a mounting surface and to a base for providing resistive support to the mounting surface as the mounting surface undergoes one or both of rotational and tilt movement relative to the base. The motion support mechanism includes a support bearing connected to the mounting surface and to the base which permits one or both of tilting and rotational motion of the mounting surface relative to the base, a pivot ball sized fixedly attached to a portion of the base, and, a resistance cartridge fixedly connected to the mounting surface such that the resistance cartridge undergoes movement relative to the base and applies a resistive force on the base as the mounting surface undergoes one or both of rotational and tilt movement. The resistance cartridge includes a cartridge housing and a resilient member in contact relation with the pivot ball and with a wall of the housing such that the resilient member is compressed by the relative movement between the resistance cartridge and the pivot ball to thereby provide the resistive support to the mounting surface. Preferably, the resistive support also provides a dampening feature, for example by way of the resilient member being formed from a viscoelastic material. A means for varying the resistance applied is provided that permits the distance between the bearing surface and the pivot ball to be varied.
Owner:CORECHAIR
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