CN2762134Y - Multifunction investigating device for liquid alloy wire contract-stress-heat crack characteristic - Google Patents
Multifunction investigating device for liquid alloy wire contract-stress-heat crack characteristic Download PDFInfo
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- CN2762134Y CN2762134Y CN 200420063994 CN200420063994U CN2762134Y CN 2762134 Y CN2762134 Y CN 2762134Y CN 200420063994 CN200420063994 CN 200420063994 CN 200420063994 U CN200420063994 U CN 200420063994U CN 2762134 Y CN2762134 Y CN 2762134Y
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Abstract
The utility model relates to a multifunction measuring device used for measuring the characteristics of a liquid alloy wire, such as shrinkage, stress and thermal fragment. At present, a plurality of foundry practice departments and metal material research departments urgently need a novel measuring device which has the advantages of complete function, reasonable structure and convenient operation, and is used for measuring the characteristics of a liquid alloy wire, such as shrinkage, stress and thermal fragment. The product is composed of a U-shaped base frame 5 and a mold mechanism 2 which is connected with the base frame through a positioning pin, wherein a dolly 18 arranged on the base frame 5 is provided with a positioning mechanism 1 and a detecting mechanism 3, and the signal output circuit of the detecting mechanism 3 is connected with a data processor 6. A reversing positioning device 19 is arranged between the dolly 18 and the path of the base frame 5. The product is used for measuring three kinds of parameters of the liquid alloy wire, such as the shrinkage, the stress and the thermal fragment.
Description
Technical field: the utility model relates to a kind of metal material research and casting field, specifically is the Multifucntional pick-up unit that can measure liquid alloy linear shrinkage, stress, three kinds of parameters of hot tearing.
Background technology: existing alloy is in defectives such as plastic yield that the Solid State Contraction process produced, internal stress, deflection crackles, mainly is because liquid alloy solidifies due to the Solid State Contraction in later stage.In the casting Technology Design, must know the linear shrinkage characteristic of alloy, so that adopt necessary remedial measures and guarantee to produce qualified casting; Casting stress is that the foundry goods cooling enters after the Hookean region, hindered the internal stress that forms owing to shrinking, remain in the distortion that easily causes in the foundry goods in the use, for the high part of accuracy requirement (as lathe bed, worktable etc.), eliminate the casting stress particular importance, and the basis of elimination casting stress is the rule of STRESS VARIATION in the research liquid alloy process of setting; The measurement of hot cracking characteristics for the choose reasonable casting technique, reduce or eliminate casting crack and have very important significance.Up to now, though researched and developed out at the pick-up unit of above parameters and in actual production, obtained in various degree application, but because the function problem and the reasonable structure problem of device, its application is greatly affected, and a kind of multiple functional, rational in infrastructure, easy to operate novel determinator of liquid alloy linear shrinkage, stress, hot cracking characteristics is badly in need of in many Foundry Production departments and metal material research department.
Summary of the invention: the purpose of this utility model provides and a kind ofly provides a kind of new equipment that can measure liquid alloy linear shrinkage amount, stress, the multinomial characteristic of hot tearing for foundry industry.
Above-mentioned purpose realizes by following technical scheme:
The multi-functional determinator of liquid alloy linear shrinkage-stress-hot cracking characteristics, its composition comprises: " U " shape pedestal, the modelling mechanism that is connected with described pedestal by register pin, detent mechanism and testing agency are housed in the dolly on the described pedestal, the signal output apparatus and the data processor of described testing agency link, and the commutation steady arm is housed between the track of described dolly and described pedestal.
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics, described detent mechanism comprises the clutch coupling that links with described little box body and coaxial spiral propeller, the axle head of described spiral propeller is equipped with the sensor of described testing agency, on the universal driving shaft of the described sensor other end bayonet socket is housed, the connecting rod that hole on the sandbox mould assembling face with described modelling mechanism cooperates is housed on the described bayonet socket, and the other end correspondence of described pedestal is equipped with bayonet socket.
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics, described sensor comprises tension-compression sensor and displacement transducer, described testing agency also comprises the thermopair that is installed on the described connecting rod.
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics, the center line of described bayonet socket, described sensor, described spiral propeller, described connecting rod all are positioned on the flask joint of sandbox of described modelling mechanism.
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics is equipped with water cooling plant on the described dolly.
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics, described bayonet socket teeth groove is penetrating up and down, and described bayonet socket neck is square, adapts with described dolly tank wall upper aperture.
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics, threaded engagement, first paint before casting are adopted in described connecting rod and foundry goods contact position.
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics has two sliding surfaces on the described same track, the wheel of described dolly is clamped described track with 90 ° of angles.
This technical scheme has following beneficial effect:
1. this product can be finished the mensuration of liquid alloy three specific characters on a machine, the cost performance height of proving installation, and calorimetric splits, when linear shrinkage is tested reversing bar is transferred to 2 stationkeeping dollies.Reversing bar transfers to 1 position release dolly when surveying internal stress.This product function is complete, rational in infrastructure, easy to operate, can carry out liquid alloy linear shrinkage, stress, the novel mensuration of hot cracking characteristics.
2. owing to adopt " U " shape pedestal, alleviated the weight of instrument greatly.
3. bayonet socket teeth groove design is penetrating up and down, can regulate within a certain height and the connecting rod link position, has avoided owing to install or the adverse effect of the right alignment difference that uncertain factor such as practical operation causes, and has been provided with lead channels and transmits thermocouple signal.One end of the similar nut of connecting rod can just pass through by vertical direction in the bayonet socket tooth, and it stressed when real work be level, so not only guaranteed that real work needs but also be convenient to the sample dismounting after shedding main stress.Utilize organic cooperation of detent mechanism, testing agency, propulsive mechanism, can guarantee to unload sample prescription just after test is finished.
3. connecting rod includes thermopair and lead channels can be carried out online temperature survey.
4. bayonet socket neck cross section is square just by wall square groove place, dolly compartment.So bayonet socket can not rotate when shaking the hand the wheel rotational lead screw thereupon.
9. threaded engagement is adopted in described connecting rod and foundry goods contact position, and first paint before casting can be backed out connecting rod so that reuse after work is finished.
Description of drawings:
Fig. 1 is a proving installation general structure vertical view.
Fig. 2 is a proving installation general structure front view.
Fig. 3 detects the hot cracking characteristics shop drawing.
Fig. 4 is a detection line amount of contraction shop drawing.
Fig. 5 detects the internal stress shop drawing.
Fig. 6 is template figure.
Embodiment 1:
The multi-functional determinator of liquid alloy linear shrinkage-stress-hot cracking characteristics, its composition comprises: " U " shape pedestal 5, the modelling mechanism 2 that is connected with described pedestal by register pin, detent mechanism 1 and testing agency 3 are housed in the dolly 18 on the described pedestal 5, the signal output apparatus of described testing agency 3 and data processor 6 link, and commutation steady arm 19 is housed between the track of described dolly 18 and described pedestal 5.
Embodiment 2:
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics, described detent mechanism 1 comprises the clutch coupling 11 that links with described little box body and coaxial spiral propeller 42, this spiral propeller can be a leading screw, the axle head of described spiral propeller 42 is equipped with the sensor 32 of described testing agency 3, with above one group of parallel universal driving shaft 44 on the dolly of the parallel interlock campaign of described spiral propeller other sensors are housed respectively, on the universal driving shaft of described sensor 32 other ends bayonet socket 12 is housed, the other end that is contained in the sensor on the described universal driving shaft 44 is equipped with described bayonet socket 13 respectively, bayonet socket 14, bayonet socket 15, the connecting rod 17 that hole on the sandbox mould assembling face with described modelling mechanism cooperates is housed respectively on the described bayonet socket, and the other end correspondence position IV of described pedestal 5 is equipped with bayonet socket 16.
Being furnished with a nut on each connecting rod can make it clamp corresponding bayonet socket.The drive end of pedestal 5 is equipped with thrust bearing 41, spiral propeller is leading screw 42, handwheel 43, and the tension-compression sensor 32 of testing agency links to each other with thrust bearing 41, connects leading screw 42 again.Leading screw is a threaded engagement with being connected of dolly, and passes clutch coupling 11 in an identical manner, finally links to each other with handwheel 43.Dolly slides it by eight trundles 37 on the track on two faces in space, pedestal II place, referring to Fig. 2.Clutch coupling 11 comprises overcoat, interior cover and reversing bar, and the overcoat of clutch coupling is fixed on the terminal I position of pedestal 5.The interior cover of described clutch coupling 11 and described leading screw be by being threaded, and is used for fixing with the fixing reversing bar 19 of interior cover or discharges dolly 18.
Embodiment 3:
The multi-functional determinator of described liquid alloy linear shrinkage-stress-hot cracking characteristics, described sensor comprises BK-2Y type tension-compression sensor 31, tension-compression sensor 32, tension-compression sensor 33 and WDL25 type displacement transducer 34, and described testing agency also comprises the thermopair 35 that is installed on the described connecting rod.As Fig. 1 tension-compression sensor 31, tension-compression sensor 32, tension-compression sensor 33 be placed on respectively dolly 18 1., 2., 3. position.Displacement transducer 34 is placed on the 4. position of dolly, and tension-compression sensor 31,33, displacement transducer 34 ends are fixed on the dolly, and tension-compression sensor 32 links to each other with thrust bearing 41.The output terminal of described tension-compression sensor 31, tension-compression sensor 32, tension-compression sensor 33, thermopair 35, displacement transducer 34 all links to each other with data acquisition module 61, data pass to the RS-485/232 communication interface modules in the mode of RS-485 serial communication bus, give PC then and handle.
The center line of described bayonet socket, described sensor, described spiral propeller, described connecting rod all is positioned on the flask joint of sandbox of described modelling mechanism.
Embodiment 4:
The multi-functional determinator of above-mentioned liquid alloy linear shrinkage-stress-hot cracking characteristics is equipped with water cooling plant 38 on the described dolly.
The teeth groove of described bayonet socket is penetrating up and down, and described bayonet socket neck is square, adapts with described dolly tank wall upper aperture.
Concrete structure also comprises:
Data processor comprises: data acquisition module 61, communication interface modules 62, PC 63.
Register pin 24 is arranged referring to Fig. 6 on the template 22, when doing different experiments, put corresponding removable die change type 23 and can make sand mold.There is outer hole at sandbox 21 mould assembling face places, can put into connecting rod 17, and sandbox is placed on the III position of pedestal, referring to Fig. 2.Sensor links to each other successively with water cooling plant 38, bayonet socket 12～15.Bayonet socket matches with connecting rod.Being furnished with a nut on each connecting rod can make it clamp bayonet socket.Bayonet socket neck cross section is square just by wall square groove place, dolly 18 compartment.
And connecting rod and foundry goods contact position adopt specific threaded engagement, brushes specific coating before casting earlier, can back out connecting rod so that reuse after the experiment.Bayonet socket 4 and connecting rod 5 loose fits.Being furnished with a nut on each connecting rod can make it clamp bayonet socket.
Concrete experimental procedure:
1. different experiments is made sand mold after selecting the corresponding register pin place of corresponding mould placement template to fix.
2. sand mold is carried out the back earlier cooperating on the nowel placement worktable and with register pin.
3. calorimetric splits, when linear shrinkage is tested reversing bar is transferred to 2 stationkeeping dolly such as Fig. 6.Reversing bar transfers to 1 position release dolly when surveying internal stress.
4. load onto connecting rod between hole and bayonet socket outside sandbox, the nut of tightening on the connecting rod closely cooperates as Fig. 3 itself and bayonet socket.
5. case closes.
6. turn on the power switch and check whether operate as normal of sensor and other element.
7. begin to measure.Data acquisition is the signal value that read an all the sensors in 0.1 second by per, the data point of drawing under two-dimensional coordinate.Up to the stress value anticlimax be zero previous moment point or temperature value when dropping to 300K data acquisition stop, total data is put line, final value deposits database in.
Claims (8)
1. the multi-functional determinator of liquid alloy linear shrinkage-stress-hot cracking characteristics, its composition comprises: " U " shape pedestal, the modelling mechanism that is connected with described pedestal by register pin, it is characterized in that: detent mechanism and testing agency are housed in the dolly on the described pedestal, the signal output apparatus and the data processor of described testing agency link, and the commutation steady arm is housed between the track of described dolly and described pedestal.
2. the multi-functional determinator of liquid alloy linear shrinkage-stress according to claim 1-hot cracking characteristics, it is characterized in that: described detent mechanism comprises the clutch coupling that links with described little box body and coaxial spiral propeller, the axle head of described spiral propeller is equipped with the sensor of described testing agency, on the universal driving shaft of the described sensor other end bayonet socket is housed, the connecting rod that hole on the sandbox mould assembling face with described modelling mechanism cooperates is housed on the described bayonet socket, and the other end correspondence of described pedestal is equipped with bayonet socket.
3. the multi-functional determinator of liquid alloy linear shrinkage-stress according to claim 2-hot cracking characteristics, it is characterized in that: described sensor comprises tension-compression sensor and displacement transducer, and described testing agency also comprises the thermopair that is installed on the described connecting rod.
4. according to the multi-functional determinator of claim 1 or 2 or 3 described liquid alloy linear shrinkage-stress-hot cracking characteristics, it is characterized in that: the center line of described bayonet socket, described sensor, described spiral propeller, described connecting rod all is positioned on the flask joint of sandbox of described modelling mechanism.
5. according to the multi-functional determinator of claim 1 or 2 or 3 described liquid alloy linear shrinkage-stress-hot cracking characteristics, it is characterized in that: on the described dolly water cooling plant is housed.
6. the multi-functional determinator of liquid alloy linear shrinkage-stress according to claim 2-hot cracking characteristics is characterized in that: described bayonet socket teeth groove is penetrating up and down, and described bayonet socket neck is square, adapts with described dolly tank wall upper aperture.
7. according to the multi-functional determinator of claim 2 or 3 or 6 described liquid alloy linear shrinkage-stress-hot cracking characteristics, it is characterized in that: threaded engagement, first paint before casting are adopted in described connecting rod and foundry goods contact position.
8. according to the multi-functional determinator of claim 1 or 2 or 3 described liquid alloy linear shrinkage-stress-hot cracking characteristics, it is characterized in that: have two sliding surfaces on the described same track, the wheel of described dolly is clamped described track with 90 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063994 CN2762134Y (en) | 2004-12-16 | 2004-12-16 | Multifunction investigating device for liquid alloy wire contract-stress-heat crack characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063994 CN2762134Y (en) | 2004-12-16 | 2004-12-16 | Multifunction investigating device for liquid alloy wire contract-stress-heat crack characteristic |
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| Publication Number | Publication Date |
|---|---|
| CN2762134Y true CN2762134Y (en) | 2006-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063994 Expired - Fee Related CN2762134Y (en) | 2004-12-16 | 2004-12-16 | Multifunction investigating device for liquid alloy wire contract-stress-heat crack characteristic |
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| CN (1) | CN2762134Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ302886B6 (en) * | 2010-06-07 | 2012-01-04 | Technická univerzita v Liberci, fakulta strojní, katedra strojírenské technologie | Apparatus for measuring braked shrinkage of casting alloys |
| CN105806876A (en) * | 2016-05-18 | 2016-07-27 | 沈阳工业大学 | Experimental device for testing hot cracking tendency of alloy |
| CN108375602A (en) * | 2018-03-02 | 2018-08-07 | 上海大学 | A kind of steel coagulating property high throughput test device and method |
| CN108931421A (en) * | 2018-08-23 | 2018-12-04 | 上海大学 | A kind of fire check test device of In Situ Heating |
-
2004
- 2004-12-16 CN CN 200420063994 patent/CN2762134Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ302886B6 (en) * | 2010-06-07 | 2012-01-04 | Technická univerzita v Liberci, fakulta strojní, katedra strojírenské technologie | Apparatus for measuring braked shrinkage of casting alloys |
| CN105806876A (en) * | 2016-05-18 | 2016-07-27 | 沈阳工业大学 | Experimental device for testing hot cracking tendency of alloy |
| CN105806876B (en) * | 2016-05-18 | 2018-05-01 | 沈阳工业大学 | The experimental provision of beta alloy hot cracking tendency |
| CN108375602A (en) * | 2018-03-02 | 2018-08-07 | 上海大学 | A kind of steel coagulating property high throughput test device and method |
| CN108931421A (en) * | 2018-08-23 | 2018-12-04 | 上海大学 | A kind of fire check test device of In Situ Heating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20100118 |