CN100494965C - Argon protective dynamically sealed thermomagnetic force coupling material test machine - Google Patents
Argon protective dynamically sealed thermomagnetic force coupling material test machine Download PDFInfo
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- CN100494965C CN100494965C CNB2006100172681A CN200610017268A CN100494965C CN 100494965 C CN100494965 C CN 100494965C CN B2006100172681 A CNB2006100172681 A CN B2006100172681A CN 200610017268 A CN200610017268 A CN 200610017268A CN 100494965 C CN100494965 C CN 100494965C
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Abstract
The argon protected dynamically sealed thermomagnetically coupling material test machine relates to material science and instrument technology. The material test machine consists of an argon purifier, an outer heating temperature controller, a pressure controller, a thermomagnetically coupling device, and a universal electronic material test machine. Argon purified in the argon purifier is heated in the outer heating temperature controller, pressure controlled in the pressure controller and provided to the thermomagnetically coupling device as the heater for the universal electronic material test machine. The present invention has high measurement and control precision, and may be used in various kinds of thermomagnetically coupling material tests.
Description
Technical field:
The present invention relates to material science and technology of instrument and meter field, is a kind of Material Testing Machine.
Background technology:
Existing electronic material universal testing machine as shown in Figure 5, it is by entablature 48, moved cross beam 49, column 50, ball-screw 51, support 52, stepper motor 53, small pulley 54 and 57, flexible conveyer belt 55 and 58, big belt wheel 56 and 60, heating furnace 61, displacement transducer 59, force transducer 62, controlling recording system 63 and computing machine 64 are formed, and wherein heating furnace 61 is heated by the heating wire that twines on it, but, at high temperature test, must take anti-oxidation safeguard measure, if the burner hearth of the heating furnace 61 of universal testing machine is evacuated sample 37, must seal between pull bar dop 38 and the fire door, tension test just can not be carried out; If in burner hearth, constantly charge into inert gas, first will be from the upper and lower opening of stove a large amount of gas that runs off, moreover because gas flow makes the interior temperature of burner hearth be difficult to stablize, and, because resistance wire produces certain magnetic field, can't be with this magnetic field to measured material separating on from excitation field; In addition; research magnetic field, temperature field and stress field are one of modern material FRONTIER IN SCIENCE branches to the coupling of material, therefore at high temperature can carry out protection against oxidation to sample; can under the coupling in temperature and magnetic field, carry out mechanical test again, just become problem demanding prompt solution.
Summary of the invention:
The present invention is in order to solve the problem of above-mentioned existence; the pyromagnetic couple of force condensation material of a kind of gas shield dynamic seal (packing) testing machine is proposed; apply heat, magnetic and dynamic seal (packing) to satisfy to be coupled; inert gas shielding prevents the testing machine of test material oxidation at high temperature, and this just provides new research technique for the research of pyromagnetic coupling.
Above-mentioned purpose of the present invention is achieved in that accompanying drawings is as follows:
The Material Testing Machine that the pyromagnetic couple of force of a kind of argon shield dynamic seal (packing) closes is by purifying argon device (I); stove heats temperature control device (II) outward; pressure controlling device (III); thermomagnetic coupling device (IV) and electronic universal material testing machine (V) are formed; purifying argon device heats the argon gas that the temperature control device input dewaters and purifies outside stove; through heating; after the regulation and control; to the high temperature argon of pressure controlling device input by the design temperature requirement; high temperature argon is again behind pressure controlling; just to the purification of argon of thermomagnetic coupling device input by design temperature and pressure requirement; thermomagnetic coupling device (IV) is the heating furnace that replaces the conventional electrical universal testing machine, and is installed between the moved cross beam and support of electronic universal material testing machine.
Described purifying argon device (I) is by argon bottle, argon gas de-watering apparatus and the argon gas filtrator that dewaters is formed, argon bottle 1 is connected with main valve 2, main valve is connected with reduction valve 4 by preceding tensimeter 3, reduction valve 4 is connected with electromagnetic voltage adjusting valve 6 by back tensimeter 5, argon gas enters in the burner hearth of preheating resistance furnace 10 by the electromagnetic voltage adjusting valve, the preheating resistance furnace is heated by resistance wire, resistance furnace 10 connections are contained in spiral fashion condenser pipe 12 in the condenser 11, condenser pipe 12 connects water receiver 15, condenser pipe 12 connects polishing filter 13, polishing filter 13 connects gas piping 14, to constant temperature argon gas container.Argon gas enters in the burner hearth of preheating resistance furnace 10 by electromagnetic voltage adjusting valve 6, the preheating resistance furnace is by resistance wire 8 heating, be controlled at about 130 ℃ by temperature controller 7 and thermopair 9 temperature argon gas in the stove, be vaporized by the water in the resistance furnace 10 output argon gas, and enter and be contained in spiral fashion condenser pipe 12 in the condenser 11, water vapor in the vaporization argon gas is condensed into water in condenser pipe, inflow water collector 15, can discharge by draining valve 16, the anhydrous argon gas of condenser pipe 12 enters polishing filter 13, is provided with molecular sieve in the polishing filter 13 or activated charcoal further purifies argon gas, obtains the effluent purificn argon gas, and, enter constant temperature argon gas container through gas piping 14.
Described stove heats temperature control device (II) outward, by argon gas air inlet adjustment solenoid valve 24, high temperature constant temperature argon gas container 17, heat-resisting alloy rod 18, medium frequency induction power supply 19, inductive coil 20, thermopair 21 and high temperature argon exhaust solenoid valve 23 constitute, the effluent purificn argon gas enters high temperature constant temperature argon gas container 17 by gas piping 14 through low temperature argon gas air inlet adjustment solenoid valve 24, in high temperature constant temperature argon gas container 17, be provided with heat-resisting alloy rod 18, heat-resisting alloy rod 18 is provided in a side of in the inductive coil 20 of medium frequency induction power supply 19, thermopair 21 is located in the high temperature constant temperature argon gas container 17, constant temperature argon gas in 17 is transported in the pressure controlling device through gas piping 22, high temperature argon exhaust solenoid valve 23 and low temperature argon gas air inlet solenoid valve 24 are communicated with constant temperature argon gas container 17, and all are located in the cold water chamber 25.
Described pressure controlling device (III), form by constant voltage argon gas container, electromagnetic voltage adjusting valve and pressure transducer, adopt two groups of pressure regulators that the constant temperature argon gas is carried out pressure controlling, pressure after pressure after the preceding group regulation and control is regulated and control greater than the back group, constant voltage argon gas container 26 before gas piping 22 connects by the pneumoelectric magnetic pressure regulator valve 34 that advances, advance pneumoelectric magnetic pressure regulator valve 34, front exhaust electromagnetic voltage adjusting valve 33 and preceding pressure transducer 32 is communicated with preceding constant voltage argon gas container 26, and preceding constant voltage argon gas container 26 is communicated with preceding gas piping 27; Gas piping 22 is communicated with back constant voltage argon gas container 28 by laggard pneumoelectric magnetic pressure regulator valve 31, back constant voltage argon gas container 28 is communicated with back gas piping 29, back pressure transducer 30 and laggard pneumoelectric magnetic pressure regulator valve 31 are communicated with back constant voltage argon gas container 28, constant temperature argon gas by gas piping 22 inputs enters preceding constant voltage argon gas container 26 by the pneumoelectric magnetic pressure regulator valve 34 that advances, advance pneumoelectric magnetic pressure regulator valve 34, front exhaust electromagnetic voltage adjusting valve 33 and preceding pressure transducer 32 is communicated with preceding constant voltage argon gas container 26, and preceding constant voltage argon gas container 26 is communicated with preceding gas piping 27; Constant temperature argon gas by gas piping 22 inputs, through laggard pneumoelectric magnetic pressure regulator valve 31 with after constant voltage argon gas container 28 be communicated with, back constant voltage argon gas container 28 is communicated with back gas piping 29, back pressure transducer 30 and laggard pneumoelectric magnetic pressure regulator valve 31 are communicated with back constant voltage argon gas container 28, and pressure transducer 30,32 and electromagnetic voltage adjusting valve 31,33,34 are provided in a side of in the water cooling chamber 25.
Described thermomagnetic coupling device, form by ceramic muffle furnace, thermal insulation material, vacuum heat-insulation cover, thermopair, be divided in the annular gas channel 41 that two-way enters laterally zygomorphic ceramic gland 40 by the constant temperature and pressure argon gas of gas piping 27 input, be provided with jet aperture 42 at the inner periphery of annular gas channel 41; Constant temperature and pressure argon gas by gas piping 29 inputs directly enters in the ceramic muffle furnace 35.
The magnetic field applicator of described thermomagnetic coupling device, form by shell, high magnetic conduction powder, field coil and field power supply, field coil 43 is on vacuum heat-insulation cover 39, and high magnetic conduction powder 44 is to be contained between shell 45 and the field coil 43, and field coil 43 is connected with field power supply 47.
The invention has the beneficial effects as follows: modern design, compact conformation is measured the control accuracy height, not only can be used for anti-oxidation elevated temperature heat couple of force condensation material test, can be used for normal magnetic force coupling material test, also can be used for the material test of elevated temperature heat magnetic force coupling.
1, argon gas dewaters and filtration unit owing to having designed, and the argon gas of output has very high purity, can play the high-temp antioxidizing effect better.
2, because pressure transducer and electromagnetic voltage adjusting valve are arranged on cold water chamber, solved solenoid valve and pressure transducer out of use problem under the condition of high temperature.
3, owing in last lower cover, designed annular gas channel, and be provided with jet aperture, solved the dynamic seal (packing) problem at the inner periphery of gas circuit.
4, owing to designed field coil, field power supply and flux path, make magnetic field energy be applied to sample material.
5, heat regulation device outward owing to having designed stove, just solved to adopt and twined resistance wire heating muffle stove usually, be difficult to eliminate the magnetic field interference problem of the magnetic field of resistance wire generation the field coil generation.
6, because thermomagnetic coupling device and electronic universal material testing machine are combined, just means that provide pyromagnetic couple of force cooperation to use for the experimental study of material.
7, no impact, vibrations and public hazards are convenient to realize control and record automatically.
Description of drawings:
Fig. 1 is the purifying argon device figure (I) that dewaters.
Fig. 2 is that stove heats temperature control device figure (II) outward.
Fig. 3 is pressure controlling installation drawing (III).
Fig. 4 is thermomagnetic coupling device figure (IV).
Fig. 5 is that pyromagnetic couple of force closes testing machine one-piece construction figure.
Among Fig. 1 to Fig. 5: the 1st, argon bottle, the 2nd, main valve, the 3rd, preceding tensimeter, the 4th, reduction valve, the 5th, back tensimeter, the 6th, electromagnetic voltage adjusting valve, the 7th, temperature controller, the 8th, resistance wire, the 9th, thermopair, the 10th, preheating resistance furnace, the 11st, condenser, the 12nd, condenser pipe, the 13rd, polishing filter, 14,22,27 and 29 is gas pipings, the 15th, and water receiver, the 16th, draining valve .17 is a high temperature constant temperature argon gas container, the 18th, heat-resisting alloy rod, the 19th, medium frequency induction power supply, the 20th, Medium frequency induction circle, the 21st, thermopair, the 23rd, solenoid valve, the 24th, low temperature argon gas air inlet adjustment solenoid valve, the 25th, cold water chamber are regulated in the high temperature argon exhaust, the 26th, preceding high temperature constant voltage argon gas container, the 28th, back high temperature constant voltage argon gas container, the 30th, back pressure transducer, the 31st, laggard pneumoelectric magnetic pressure regulator valve, the 32nd, preceding pressure transducer, the 34th, the pneumoelectric magnetic pressure regulator valve that advances, the 33rd, exhaust electromagnetic voltage adjusting valve, the 35th, ceramic muffle furnace, the 36th, thermal insulation material, the 37th, sample, the 38th, pull bar dop, the 39th, vacuum heat-insulation cover, the 40th, ceramic gland, the 41st, annular gas channel, the 42nd, jet aperture, the 43rd, field coil, the 44th, high magnetic conduction powder, the 45th, shell, the 46th, thermopair, the 47th, field power supply, the 48th, fixed cross beam, the 49th, moved cross beam, the 50th, column, the 51st, ball-screw, the 52nd, support, the 53rd, servomotor, 54 and 57 is small pulleys, 55 and 58 is flexible conveyer belts, 56 and 60 is big belt wheels, the 59th, displacement transducer, the 61st, heating furnace, the 62nd, force transducer, the 63rd, testing machine controlling recording system, the 64th, computing machine.
Embodiment is further described below in conjunction with the concrete structure of accompanying drawing to the pyromagnetic couple of force condensation material of gas shield dynamic seal (packing) testing machine:
Consult Fig. 1 and Fig. 2, argon bottle 1 is by main valve 2, preceding tensimeter 3, electromagnetic relief pressure valve 4, back tensimeter 5 and electromagnetic voltage adjusting valve 6 enter preheating resistance furnace 10, the resistance wire 8 of preheating resistance furnace is connected with the current output terminal of temperature controller 7, that temperature controller 7 is exported is 220V, the alternating current of 50HZ, the measuring head of thermopair 9 is arranged on the temperature that detects in the resistance furnace 10 wherein, the extension line of thermopair 9 is connected with temperature controller 7, and the temperature of preheating resistance furnace 10 is set in about 130 ℃, and the gasification argon gas of being exported by the preheating resistance furnace enters spiral fashion condenser pipe 12, condenser pipe 12 is arranged in the condenser 11, water vapor in the argon gas is condensed into water, and in the inflow water collector 15, is discharged by draining valve 16, the anhydrous argon gas that dewaters through condenser pipe 12 enters in the polishing filter 13, in filtrator, be provided with activated charcoal or molecular sieve, argon gas is filtered, enter through gas piping 14 again and heat temperature control device outside the stove.
Consult Fig. 1, Fig. 2 and Fig. 3, the effluent purificn argon gas is to be input to high temperature constant temperature argon gas container 17 by gas piping 14 through low temperature argon gas air inlet electromagnetic voltage adjusting valve 24, the induction heating circle 20 of medium frequency induction power supply 19 is to place container 17, heat-resisting alloy rod 18 is to place induction heating circle 20, by heating heat-resisting alloy rod, argon gas in the heating container 17, the temperature of argon gas is to be detected by thermopair 21 in the container 17, when the temperature in the container 17 is lower than the temperature of setting, transfer the electric current of load coil 20, simultaneously, turn air inlet solenoid valve 24 down, transfer the high temperature argon exhaust solenoid valve 23 that is communicated with container 17 greatly, when the temperature in the container 17 is higher than design temperature, turn the electric current of induction heating circle 20 down, simultaneously, turn solenoid valve 23 down, transfer big solenoid valve 24, the constant temperature argon gas by design temperature in the container 17 is transported to the pressure controlling device by gas piping 22.
Consult Fig. 2 and Fig. 3, the constant temperature argon gas is divided into two-way by gas piping 22, one tunnel air pressure of organizing before air inlet electromagnetic voltage adjusting valve 34 is input in the high temperature constant voltage argon gas container 26,26 is detected by the pressure transducer 32 that is communicated with it, when the air pressure in 26 is higher than set pressure, turn air inlet electromagnetic voltage adjusting valve 34 down, transfer the exhaust electromagnetic voltage adjusting valve 33 that is communicated with 26 greatly, when the air pressure in 26 is lower than set pressure, transfer big by 34, the constant voltage argon gas of turning down in 33,26 is communicated with gas piping 27; The air pressure that another road is input to back group high temperature constant voltage argon gas container 28,28 is detected by the pressure transducer 30 that is communicated with it, and by regulating the air pressure that the air inlet electromagnetic voltage adjusting valve 31 that is communicated with 28 is controlled in 28, the constant voltage argon gas in 28 is communicated with gas piping 29.
Consult Fig. 3 and Fig. 4, the constant temperature and pressure argon gas of being exported by gas piping 29 directly enters ceramic muffle furnace 35, and heats the sample 37 that is located at wherein, flows to the last lower nozzle of muffle furnace 35 simultaneously again; Divide two-way to transport to annular gas channel 41 in the laterally zygomorphic ceramic gland 40 by the constant temperature and pressure argon gas of gas piping 27 output, and by jet aperture 42 ejections that are located at the gas circuit inner periphery, jet aperture 42 tilts in pipe about 2 degree, the gas part of ejection is flowed out by the mouth of pipe, another part and the interior gas equilibrium of pipe make the gas in the pipe stop to flow, and help the stability of temperature, can make pull bar dop 38 and the pulling of mouth of pipe friction free again, this has just realized the purpose of dynamic seal (packing); Filling heat insulator 36 between muffle furnace 35 and vacuum heat-insulation cover 39 makes the muffle furnace 35 that is in the condition of high temperature earlier once heat insulation by thermal insulation material 36, and it is heat insulation that the vacuum heat-insulation of being made by heat-resistance stainless steel overlaps 39 secondaries again, just can reach good insulation effect.
Consult Fig. 4, periphery at vacuum heat-insulation cover 39 is wound with field coil 43, between field coil 43 and shell 45, be filled with high magnetic conduction powder 44, field coil 43 is connected with field power supply 47, open field power supply, the field coil energising produces magnetic field, and the magnetic line of force just enters upper connecting rod dop 38 through high magnetic conduction powder 44, and get back to high magnetic conduction powder 44 by sample 37 and lower link dop and form closed magnetic circuits, this just is applied to magnetic field sample 37.
Consult Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, replace with thermomagnetic coupling device IV in the position of electronic universal tester heating furnace 61, field power supply 47 is connected with the field coil 43 of thermomagnetic coupling device IV, and sample 37 is applied magnetic field; The constant temperature and pressure argon gas of pressure controlling device III is heating sample 37 in gas piping 29 enters ceramic muffle furnace 35; The constant temperature and pressure argon gas of pressure controlling device III enters in the annular gas channel 41 of last lower cover 40 of muffle furnace 35 through gas piping 27, and by the argon gas balance in jet aperture 42 ejection argon gas and the muffle furnace, realization dynamic sealing action; The constant temperature argon gas of pressure controlling device III is supplied with by input pipe 22 by temperature control device II, and the effluent purificn argon gas of temperature control device is to be supplied with by input pipe 14 by purifying argon device I; Pulling force, deformation velocity and the strain rate of material in the tension test process is by testing machine controlling recording system 63 and computing machine 64 control and records.
The design concept of the pyromagnetic couple of force condensation material of gas shield dynamic seal (packing) of the present invention testing machine is:
Heating and excitation branch are arranged, and take stove to heat outward, and this just the field coil in common heating resistor wire coil and magnetic field has separately solved the resistance wire annular and twined magnetic field that heating the produces interference problem to field coil generation magnetic field; Take the muffle furnace mouth of pipe jet balance gas stream in the stove in stove, solved anti-oxidation heating of argon shield and dynamic seal (packing) problem simultaneously.
By the argon gas of argon bottle 1 output through main valve, reduction valve and pressure regulator valve are transported in the preheating heating furnace 10, and be heated to about 130 ℃, transporting to condenser pipe 12 then dewaters, obtain anhydrous argon gas, purify through clarifier 13 again, obtain the effluent purificn argon gas, the effluent purificn argon gas is transported to high temperature constant temperature argon gas container 17 through gas piping 14, in 17, heat-resisting alloy rod 18,18 heating argon gas is wherein therein put in 20 heating by the Medium frequency induction circle, temperature in 17 is by test temperature decision in the muffle furnace 35, and directly detect by thermopair 46, by thermopair 21 auxiliary detection, regulate temperature by solenoid valve 23 and 24, when thermopair 46 temperature displayed are lower than the testing requirements temperature, transfer the electric current of big medium frequency induction power supply 19, turn solenoid valve 24 simultaneously down, transfer big solenoid valve 23; When 46 temperature displayed are higher than test temperature, turn 19 electric current down, transfer greatly by 24 simultaneously, turn 23 down; High temperature constant temperature argon gas by gas piping 22 outputs is divided into two-way: the one tunnel transports to back high temperature constant voltage argon gas container 28, transports in the ceramic muffle furnace 35 through gas piping 29 again, flows to 35 fire door up and down, and heating sample 37; One the tunnel transports to preceding high temperature pressure vessel 26,26 air pressure is detected by pressure transducer 32, by electromagnetic voltage adjusting valve 33 and 34 regulation and control, high temperature constant voltage argon gas in 26 is transported in the annular gas channel 41 of laterally zygomorphic ceramic gland 40 through gas piping 27 again, and by jet aperture 42 ejections that are located at week in the gas circuit, the gas that the argon gas of ejection and ceramic muffle furnace 35 flow to fire door reaches balance, realizes the effect of dynamic seal (packing).The magnetic field that is produced by field coil 43 is applied to sample 37 through high magnetic conduction powder 44 and upper connecting rod dop 38, get back to lower link dop and high magnetic conduction powder again through sample 37, form closed magnetic circuit, just sample has been applied magnetic field, the electric current of field coil 43 and frequency are by field power supply 47 regulation and control.
The application example of the pyromagnetic couple of force condensation material of gas shield dynamic seal (packing) of the present invention testing machine:
Before work, as long as can export the effluent purificn argon gas by gas piping 14 just purifying argon device I has been set in the argon gas input; The field power supply 47 of thermomagnetic coupling device IV is set in the state of the magnetic field intensity and the frequency of testing requirements; Stove heats temperature control device II outward, and to be set in the heating-up temperature that requires than test high by about 10%, detected by thermopair 21, can be by gas piping 22 output high temperature constant temperature argon gas; The constant voltage argon gas container 28 of pressure controlling device III is set in higher by about 30% than atmospheric pressure, is directly entered in the ceramic muffle furnace 35 by gas piping 29 exportable high temperature constant voltage constant temperature argon gas; The electromagnetic voltage adjusting valve 34 of constant voltage argon gas container 26 draft tube is in closed condition; Sample 37 is installed between the last lower link dop 38 among the thermomagnetic coupling device IV.
1, opens the main valve 2 of argon bottle 1, observe tensimeter 3 and regulate main valve 2,, observe tensimeter 5 and regulate reduction valve 4, again according to the air pressure adjustment electromagnetic voltage adjusting valve of setting 6 simultaneously by the pressure of setting about 150%; Open the switch of temperature controller 7 and medium frequency induction power supply 19, regulate high temperature argon exhaust regulating valve 23 and low temperature argon gas air inlet adjustment valve 24, make thermopair 21 maintain about 120% of testing requirements temperature, the high temperature constant temperature argon gas just enters in the ceramic muffle furnace 35 through gas piping 22, treat in 35 after the whole emptyings of air, open air inlet solenoid valve 34, high temperature constant temperature constant voltage argon gas is just entered in the annular gas channel 41 of lower cover 40 by draft tube 27, by jet aperture 42 ejections, regulate air inlet electromagnetic voltage adjusting valve 31 again and make furnace gas be in best sealing state simultaneously.
2, the temperature that is detected in the stove by thermopair 46, fine tuning and the solenoid valve 23 and 24 that high temperature constant temperature argon gas container 17 is communicated with make the test temperature that remains on setting in the stove.
3, utilize testing machine controlling recording system 62 and computing machine 63, electronic universal tester is set in required trystate.
4, field power supply 47 is to be set in required magnetic field intensity and frequency, opens field power supply, starts universal testing machine, just can test.
Excellent technique effect of the present invention is:
It is to heat temperature control device, pressure controlling device and argon gas outward by electronic universal material testing machine, thermomagnetic coupling device, stove to remove water purification installation that heat of the present invention, magnetic, couple of force close testing machine, and magnetic field applicator is formed, stove heats regulation device outward, can separate common resistance heating coil and magnetic field field coil, solve the interference of resistance heating coil magnetic field; The argon gas that the pressure controlling device is carried can both solve the dynamic friction of the dop pull bar and the muffle furnace mouth of pipe to the dynamic seal (packing) of muffle furnace fire door, can make the interior argon gas of stove be in steady weighing apparatus state again; Argon gas removes the argon gas that water purification installation can obtain effluent purificn, and sample is produced effective protection against oxidation.
1, consult Fig. 1, argon bottle 1 is through main valve 2, preceding tensimeter 3, reduction valve 4, back tensimeter 5, pressure regulator valve 6 is transported to argon gas in the preheating furnace 10, be wrapped in the resistance wire 8 of preheating furnace, argon gas in the heating furnace, resistance wire 8 is connected with the power supply of temperature controller 7, the temperature of argon gas is set in about 130 ℃ in the stove, place stove by gauge head, and thermopair 9 prosecutions that are connected with temperature controller 7, input places the spiral cold-finger 12 of condensation chamber 11 behind the argon gas heating and gasifying in preheating furnace, condensation of moisture inflow water collector 15 in the argon gas, can be discharged by draining valve 16, the argon gas after dewatering flows into polishing filter 13, by the activated charcoal or the molecular sieve filtration that are located at wherein, obtain the effluent purificn argon gas, and enter gas piping 14.
2, consult Fig. 1 and Fig. 2, argon gas by gas piping 14 conveyings, enter high temperature constant temperature argon gas container 17 through solenoid valve 24, heat-resisting alloy rod 18 is the inductive coils 20 that place intermediate frequency power supply 19, by the argon gas in heating heat-resisting alloy rod 18 heating containers 17, the temperature of argon gas is by the requirement decision of heating sample, detect by thermopair 46, by thermopair 21 auxiliary detection, when temperature is higher than design temperature, turn the electric current of medium frequency induction power supply 19 down, transfer big solenoid valve 24, turn solenoid valve 23 down, when the temperature of argon gas is lower than design temperature, transfer big 19 electric current, turn solenoid valve 24 down, transfer big solenoid valve 23, just by gas piping 22 outputs, solenoid valve 23 and 24 is to place cold water chamber 25 to the high temperature constant temperature argon gas.
3, consult Fig. 2 and Fig. 3, high temperature constant temperature argon gas by gas piping 22 output is divided into two-way: the one tunnel before electromagnetic voltage adjusting valve 34 enters pressure vessel 26, the pressure of pressure vessel 26 is detected by pressure transducer 32, when pressure is higher than the pressure of setting, turn electromagnetic voltage adjusting valve 34 down, transfer big electromagnetic voltage adjusting valve 33, when pressure is lower than the pressure of setting, transfer greatly by 34, turn 33 down, the constant voltage argon gas in the pressure vessel is by gas piping 27 outputs; Another road after electromagnetic voltage adjusting valve 31 enters in the pressure vessel 28,28 pressure of argon gas detect by solenoid valve 31 controls by pressure transducer 30, the constant voltage argon gas in 28 is through gas piping 29 outputs; Electromagnetic voltage adjusting valve 22,33,31 and pressure transducer 30,32 are provided in a side of in the cold water chamber, and the pressure that the pressure of argon gas will be higher than argon gas in atmospheric about 30%, 28 in 26 will be higher than about 20% in 26.
4, consult Fig. 3 and Fig. 4, by the effluent purificn high temperature constant temperature constant voltage argon gas of 29 inputs in the ceramic muffle furnace 35, heating material sample 37, and flow to the last lower nozzle of muffle furnace; By the effluent purificn high temperature constant temperature constant voltage argon gas of 27 inputs, in the annular gas channel 41 about flowing in the symmetrical ceramic gland, and the jet aperture 42 in week sprays in being located at annular gas channel, has realized the dynamic seal (packing) effect between muffle furnace mouth and the pull bar dop 38.
5, consult Fig. 4, field coil 43 is connected with field power supply 47, field coil is the outer rim around vacuum heat-insulation cover 39, high magnetic conduction powder 44 is housed between field coil and shell, the magnetic field that field coil 43 is produced is by high magnetic conduction powder 44, upper connecting rod dop 38, sample 37 and lower link dop, form closed magnetic circuit through high magnetic conduction powder again, magnetic field is put on the sample 37; Between ceramic muffle furnace 35 and vacuum heat-insulation cover 39 thermal insulation material 36 is housed, it is heat insulation that thermal insulation material carries out the first time, and it is heat insulation that the vacuum heat-insulation cover carries out the second time, realizes better insulation effect.
6, consult Fig. 5, thermomagnetic coupling device is to be contained between the moved cross beam 49 and base 52 of universal testing machine, mechanical test is implemented by electronic universal tester, control by computing machine 64 and control system 63 according to the parameter of setting, be added in sensor 62 detections of the load of sample 37 by power, the distortion of sample is detected by displacement transducer 59.
Claims (4)
1. argon protective dynamically sealled thermomagnetic force coupling material test machine; it is characterized in that: it comprises purifying argon device; stove heats temperature control device outward; the pressure controlling device; thermomagnetic coupling device and electronic universal material testing machine; thermomagnetic coupling device is installed between the moved cross beam and support of electronic universal material testing machine; purifying argon device connects stove and heats temperature control device outward; stove heats temperature control device outward and connects the pressure controlling device; the pressure controlling device is divided into two groups of front and back; be connected with thermomagnetic coupling device respectively; wherein; thermomagnetic coupling device is by muffle furnace; thermal insulation material; the vacuum heat-insulation cover; magnetic field applicator and gland constitute; the pull bar dop of electronic universal material testing machine is in muffle furnace; gland is two ends about muffle furnace; annular gas channel is arranged in the gland; the inner periphery of annular gas channel is provided with jet aperture; thermal insulation material is contained in muffle furnace outer wall place; there is the vacuum heat-insulation cover in the thermal insulation material outside; group connects annular gas channel before the pressure controlling device; the back group is connected with the muffle furnace inner chamber; magnetic field applicator is by shell; high magnetic conduction powder; field coil and field power supply are formed; field coil puts around vacuum heat-insulation; high magnetic conduction powder is to be contained between shell and the field coil, and field coil is connected with field power supply.
2. Material Testing Machine according to claim 1, it is characterized in that: the pressure controlling device is made up of constant voltage argon gas container, electromagnetic voltage adjusting valve and pressure transducer, two groups of pressure regulators are arranged, constant voltage argon gas container before gas piping connects by the pneumoelectric magnetic pressure regulator valve that advances, advance pneumoelectric magnetic pressure regulator valve, front exhaust electromagnetic voltage adjusting valve and preceding pressure transducer is communicated with preceding constant voltage argon gas container, and preceding constant voltage argon gas container is communicated with preceding gas piping; Gas piping is communicated with back constant voltage argon gas container by laggard pneumoelectric magnetic pressure regulator valve, back constant voltage argon gas container is communicated with the back gas piping, back pressure transducer and laggard pneumoelectric magnetic pressure regulator valve are communicated with back constant voltage argon gas container, and electromagnetic voltage adjusting valve and pressure transducer all are located in the cold water chamber.
3. Material Testing Machine according to claim 1, it is characterized in that: stove heats temperature control device outward by low temperature argon gas air inlet adjustment solenoid valve, high temperature constant temperature argon gas container, the heat-resisting alloy rod, medium frequency induction power supply, inductive coil, thermopair and high temperature argon exhaust solenoid valve constitute, low temperature argon gas air inlet adjustment solenoid valve connects high temperature constant temperature argon gas container, be provided with the heat-resisting alloy rod in the high temperature constant temperature argon gas container, the heat-resisting alloy rod is in the inductive coil of medium frequency induction power supply, thermopair is located in the high temperature constant temperature argon gas container, the constant temperature argon gas is transported in the pressure controlling device through gas piping, high temperature argon exhaust solenoid valve and low temperature argon gas air inlet solenoid valve are communicated with high temperature constant temperature argon gas container, and high temperature argon exhaust solenoid valve, low temperature argon gas air inlet solenoid valve and high temperature constant temperature argon gas container all are located in the cold water chamber.
4. Material Testing Machine according to claim 1, it is characterized in that: purifying argon device is by argon bottle, argon gas de-watering apparatus and purification for argon filtrator are formed, argon bottle is connected with main valve, main valve is connected with reduction valve by preceding tensimeter, reduction valve is connected with the electromagnetic voltage adjusting valve by the back tensimeter, argon gas enters in the burner hearth of preheating resistance furnace by the electromagnetic voltage adjusting valve, the preheating resistance furnace has resistance wire, the preheating resistance furnace is connected with spiral fashion condenser pipe in the condenser, condenser pipe connects water receiver, condenser pipe connects the purification for argon filtrator, and the purification for argon filtrator connects gas piping, to constant temperature argon gas container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100172681A CN100494965C (en) | 2006-10-25 | 2006-10-25 | Argon protective dynamically sealed thermomagnetic force coupling material test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100172681A CN100494965C (en) | 2006-10-25 | 2006-10-25 | Argon protective dynamically sealed thermomagnetic force coupling material test machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1945263A CN1945263A (en) | 2007-04-11 |
| CN100494965C true CN100494965C (en) | 2009-06-03 |
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| CN101893531B (en) * | 2010-07-20 | 2015-04-01 | 中国工程物理研究院总体工程研究所 | High-temperature Hopkinson pressure bar experimental system with atmosphere protection device |
| CN103776697B (en) * | 2013-11-01 | 2016-03-02 | 武汉科技大学 | Novel magnetic controlled marmem multi-scenarios method mechanical property test platform |
| CN105301199B (en) * | 2015-11-11 | 2017-03-29 | 北京大学 | A kind of many chargers of probe system |
| CN107972216A (en) * | 2017-12-01 | 2018-05-01 | 湘潭大学 | Magnetic rheology elastic body Integral molding device for insoles based on multi- scenarios method effect |
| CN112964544B (en) * | 2021-03-11 | 2023-02-28 | 天津大学 | In-situ double-shaft mechanical test device used in lead-bismuth environment |
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