36results about How to "Easy to quench" patented technology

The invention provides a heat treatment method for a roller cone. The heat treatment method includes the following steps that (1) a roller cone pre-fabricated part is put in a furnace for carburizingtreatment, the temperature is controlled to be 925-930 DEG C, and the carburizing treatment includes a reinforcing carburizing period and a diffusion period; and after the diffusion period is over, aroller cone is cooled to 840-860 DEG C, subjected to slow cooling to 430-460 DEG C and then discharged out of the furnace; (2) the roller cone which is already subjected to carburizing treatment and slow cooling and discharged out of the furnace is subjected to high-temperature tempering treatment, the temperature is controlled to be 670-690 DEG C, tempering is performed for 10-14 hours under protection of N2, then the temperature is decreased to 430-460 DEG C, and the roller cone is discharged out of the furnace and subjected to air cooling; (3) the roller cone which is already subjected to high-temperature tempering treatment is subjected to quenching treatment, the temperature is controlled to be 850-870 DEG C, carbon potential is 0.3-0.5%, and after 100-140 minutes, oil cooling is performed till the temperature reaches 100-150 DEG C; and (4) the roller cone which is already subjected to quenching treatment is subjected to low-temperature tempering, the temperature is controlled tobe 220-230 DEG C, and after 10-15 hours, the roller cone is discharged out of the furnace and subjected to air cooling till the temperature reaches the indoor temperature. By means of the heat treatment method, deformation of inner holes of the roller cone is small, the effective carburized layer and hardness are uniform, and the heat treatment quality of the roller cone is greatly improved.

The invention discloses a fluorescent oxygen nano sensor with cellular mitochondrion targeting. The nano sensor has the fluorescent service life sensitive to dissolved oxygen quantity, and can specifically target a mitochondrion in a cell. After the cell phagocytizes the oxygen nano sensor, variations of the dissolved oxygen quantity in a cytoplasm and the mitochondrion can be detected by a variation of the fluorescent service life of the nano sensor. The fluorescent oxygen nano sensor with the cellular mitochondrion targeting has the following characteristics that (1) a PLL (Phase Locked Loop) housing layer allows the sensor to have good organism compatibility; encapsulation allows a probe to have external interference resistance; (2) the mitochondrion targeting is good; (3) the oxygen sensitivity of the fluorescent service life is high; (4) the dissolved oxygen quantity in different positions in the cell can be detected.

The invention discloses a five-axis linkage quenching machine tool carried with a DSP and a digital high-frequency power supply. The five-axis linkage quenching machine tool comprises a machine tool body, a first cavity, a second cavity and a third cavity are formed in the machine tool body, a water collecting box is arranged in the first cavity, a cooling ring is arranged in the second cavity, and a heating ring is arranged above the cooling ring. According to the five-axis linkage quenching machine tool carried with the DSP and the digital high-frequency power supply, when cylindrical parts such as shafts are machined and quenched, the bottom ends of the cylindrical parts can be placed in the containing groove, then the top ends of the cylindrical parts are placed in a fixing ring, then adjusting rods on the two sides of the fixing ring are moved, the parts are clamped and fixed through clamping plates on the corresponding sides of the adjusting rods, and finally, fixing bolts are tightened and fixed, so that the parts are conveniently and stably fixed, the machine tool can conveniently carry out quenching machining on the parts, the quenching stability of the device is improved, and the problem that the parts needing to be quenched are inconvenient to fix is solved.

The invention discloses a casting method of high-matrix-hardness GM241 alloy gray iron. The casting method comprises the following steps that S1, the GM241 alloy gray iron is composed of 3.0%-3.2% of C, 1.6%-1.8% of Si, 0.9%-1.0% of Mn, less than 0.06% of P, less than 0.1% of S, 0.3%-0.5% of Cu, 0.10%-0.15% of Ni, 0.4%-0.5% of Mo and 0.4%-0.5% of Cr. According to the method, graphite is refined by prolonging the heat preservation time of molten iron and adopting a secondary inoculation method, the pearlite content is finally increased, the proportion of A-type graphite is increased, the length of the graphite is refined, the matrix hardness of a casting is improved, the matrix hardness is averagely improved by about 20 HB and is improved to 220-241 HB from original 197-220 HB, the casting is easier to quench, the quenching hardness reaches 52 HRC or above, and the casting is not prone to cracking in the quenching process.

The invention discloses a sleeving device for screw quenching. The sleeving device for screw quenching comprises a mounting block, wherein the cross section of the mounting block is H-shaped; a butt-joint tube is arranged in the middle of the mounting block; one end of the butt-joint tube is connected with a butt-joint rod; a fixing block is arranged at an end of the butt-joint rod; a first butt-joint shaft is arranged between one end of the fixing block and one side of the mounting block; a second butt-joint shaft is arranged between the other end of the fixing block and the other side of themounting block; the second butt-joint shaft and the first butt-joint shaft are arranged in parallel; a mounting plate is arranged at the position of an outward surface of the fixing block; the periphery position of the mounting plate is provided with a sleeving groove and a magnetic attraction seat; the cross section of the magnetic attraction seat is semicircular; the magnetic attraction seat isattracted to the position of an outward surface of the mounting plate; the other end of the butt-joint tube is connected with another butt-joint tube; and the fixing block is connected with the mounting plate through a fixing bolt. The magnetic attraction seat can sleeve the outer peripheral surface of a screw and is attracted to the mounting plate, and therefore, the screw can be mounted firmly.

The invention discloses a quenching device for heat treatment, which comprises a condensation box, a water accumulation chamber is arranged inside the condensation box, a cooling tank is arranged on the top of the condensation box, and a water discharge tank is fixedly connected to the outer side wall of the condensation box. The outlet end of the water tank is provided with a first water pipe, and the end of the first water pipe away from the water tank runs through the condensation tank and extends to the water accumulation chamber. The bottom of the water accumulation chamber is fixedly connected with a support rod, and the support rod rotates A control rod is connected, and one end of the control rod is fixedly connected with a floating ball. In the present invention, through the cooperation of the water inlet mechanism and the second water pipe, the cooling water in the cooling tank is continuously circulated, so as to avoid the waste of water resources. In addition, through the cooperation of the floating ball, the control rod, the sealing plug and the first water pipe, the accumulation of water is ensured. The water chamber always contains condensed water, thereby ensuring the continuous battery life of the condensed water in the cooling tank, so that people can continue to perform quenching treatment.

The invention belongs to the technical field of treatment of high concentration organic waste water, and particularly relates to a method for degrading nitrobenzene waste water by a polyphase electrocatalytic oxidation process. The invention solves the problems of high cost and long time consumption in the traditional nitrobenzene waste water methods, low efficiency and high energy consumption inthe electrolytic process, high oxidant consumption, high cost and the like in the Fenton process in the prior art for treating high concentration nitrobenzene water waste. The invention mainly adoptsthe catalytic oxidation action of transition metal catalysts in the electric field, and combines the Fenton process, thereby effectively degrading the high concentration nitrobenzene waste water. Themethod comprises the following steps that: (1) heterocatalytic reagents (solid catalysts) and particle electrodes, mainly including active carbon, and transition metal oxides and salts, are used for avoiding economic loss and secondary pollution to the environment, which are caused by catalyst loss in heterocatalytic oxidation; (2) under the condition of low pH value of the waste water in cooperation with Fe2+ with strong reducibility, a coupling reactor composed of an electrolysis field and oxidation reaction is used for generating chain reaction for generating an OH hydroxyl free radical, and the OH hydroxyl free radical can carrying out nonselective oxidization on organic substances, thereby finally oxidizing organic pollutants into carbon dioxide and water; (3) by using electric energy as an excitation energy and using cheap air as raw material, nitrobenzene substances in waste water are efficiently degraded under the coupling action of the polyphase electrocatalytic oxidation process and the Fenton process; (4) and the reactor is composed of a direct current regulated power supply, a feed electrode and an electrolytic bath.

The invention discloses a continuous quenching device for a track with a turnover function. The continuous quenching device comprises a base frame, a conveying roller, a flame nozzle, a spray pipe, aservo motor and a blocking plate, wherein the conveying roller and a mounting plate are arranged on the inner wall of the base frame, the flame nozzle and the spray pipe are arranged on the lower endface of the mounting plate, and the servo motor is arranged on the outer wall of the base frame. An inner channel is formed in an adjusting cylinder, and a reset spring is fixed in the adjusting cylinder. An extending plate is fixedly arranged on a control plate. The blocking plate is fixed to a bottom plate, and the bottom plate is fixed to the bottom surface of the base frame. A transferring plate is fixedly arranged on the inner wall of the base frame. By adopting a novel structural design, the continuous quenching device for the track with the turnover function can conveniently and continuously carry out turnover operation for a track shoe of which the single face is quenched. The structure is stable and reliable, manual operation is not needed, the safety of production is improved, and the efficiency of production is also greatly improved.

The invention discloses a quenching auxiliary device for a metal sealing ring of a combined pad, which comprises a sleeve seat, which is in an annular shape, and a plurality of buckle blocks are arranged on the sleeve seat, and buckle grooves are provided on the inwardly facing surface of the buckle blocks; the shaft of the sleeve seat A mounting groove is provided at the position, and a number of limit blocks are provided on the inner wall of the sleeve, and the limit block is arranged at the position of the installation groove. Circular shape, the connecting ring is connected with a number of connecting bars, one end of the connecting bar is provided with a first slot, the connecting ring is snapped in the position of the first slot, the other end of the connecting bar is provided with a second slot, and the limit block is locked Connected to the position of the second card slot, the connecting ring is connected to one end of the connecting bar through a first fixing bolt, and the limit block is connected to the other end of the connecting bar through a second fixing bolt. The invention facilitates the rotating operation of the metal sealing ring of the combined pad on the sleeve, and facilitates the quenching treatment of the metal sealing ring of the combined pad.

The invention provides a heavy metal ion indicator based on Sip-Me / DMPS reversible reaction and its application. Silpiro red and sodium 2,3-dimercaptopropanesulfonate are mixed and reacted at room temperature according to the volume ratio of 1:2, and the reaction Afterwards, the heavy metal ions were detected by using silpirole red as the fluorophore and the dithiol group as the recognition site. At the same time, the water-absorbing bomb absorbed with silpiro red and 2,3-dimercaptopropanesulfonate solution was used as an indicator, and the reaction between silpiro red and 2,3-dimercaptopropanesulfonate made the fluorescence quenched, and then mixed with Heavy metal ions react to form complexes to remove dimercaptosuccinic acid, so that the fluorescence of the system is restored, and the presence of mercury ions, zinc ions, nickel ions, cadmium ions, copper ions and cobalt ions, six heavy metal ions can be detected.

The invention discloses an intelligent clamping and forging equipment, comprising a work table, a forging plate, a clamping device, a first mechanical arm, a rotary drive motor, a quenching box and a positioning plate. The bottom outer end of the work table is fixedly welded and distributed with Support legs, all of which are cylindrical steel pipe structures, the bottom of the support legs are bonded with EVA pads, the positioning plates are arranged at the top ends of the work table, and the outer ends of the positioning plates are fixed with A second screw rod, the outer end of the second screw rod is connected with a second electric push rod device, a forging plate is provided above the work table, and the top of the forging plate is connected with a hydraulic device through a hydraulic rod, the The top of the hydraulic device is fixedly welded with a top plate, and the side end of the forged plate is provided with a clamping device. The intelligent clamping forging equipment relates to the technical field of mechanical manufacturing, forging workpieces with high strength, sliding and clamping the workpieces, high automation performance, lateral sliding adjustment of positions, and quenching processing after forging.