CN201945538U - Device for pressing powder test sample for average particle size tester - Google Patents
Device for pressing powder test sample for average particle size tester Download PDFInfo
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- CN201945538U CN201945538U CN2011200095639U CN201120009563U CN201945538U CN 201945538 U CN201945538 U CN 201945538U CN 2011200095639 U CN2011200095639 U CN 2011200095639U CN 201120009563 U CN201120009563 U CN 201120009563U CN 201945538 U CN201945538 U CN 201945538U
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- pressure gauge
- knob
- test specimens
- powder
- torque spanner
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Abstract
The utility model discloses a device for pressing a powder test sample for an average particle size tester, which comprises a pressure gage knob and is characterized in that the pressure gage knob is provided with an idling torque spanner and is clamped with the idling torque spanner. By utilizing the device, the phenomenon of uneven porosity caused by uneven pressure which is generated by utilizing a manual rotating pressure gage knob to press the powder test sample can be avoided, so that the stability and uniformity of particle size test results are confirmed.
Description
Technical field
The utility model relates to a kind of pressure setting of powder test specimens of particle mean size tester, particularly, relates to a kind of pressure setting of powder test specimens of the Fei Shi method particle mean size tester that is used for refractory metal and compound powder thereof.
Background technology
In recent years, generally adopt Fei Shi method particle mean size tester to test for particle size range in the test of micron-sized refractory metal and compound powder particle mean size thereof, measuring method is generally following step:
The first step, calibration: the measurement result of using the standard pipe calibration tester;
Second the step, produce test specimens: take by weighing the test specimens powder of constant weight, in the coupon of packing into, the coupon two ends are pressed with quick filter paper and porous copper plug;
The 3rd step, compacting test specimens, adjust the position of reading plate: the coupon that will install test specimens is placed on the position of compacting test specimens, be rotated counterclockwise the pressure gauge knob, make continuous pressure gauge depression bar suppress test specimens downwards, after press power reaches predetermined value, the pressure gauge knob that stops the rotation, translation granularity reading plate, make the specimen height line on the pressure gauge pointer alignment granularity reading plate, fixedly the position of granularity reading plate;
The 4th step, measurement granularity: the coupon that will finish compacting is placed on the position that the granularity coupon is measured on the testing base right side, rotatably compresses knob and compresses sample, guarantees that the coupon two ends are air tight.With water level in the pressure gauge pointer alignment U type glass tube, the granularity on the pressure gauge pointer indication granularity reading plate is the particle mean size of tested powder.
During actual the test, in the process of working pressure meter knob compacting test specimens, often because the dynamics of user of service's difference and each same user of service's rotation pressure meter knob is inconsistent, the factor of porosity of gained test specimens is inconsistent after causing suppressing, and has caused the test specimens powder mean particle sizes that records at last also inaccurate.
Summary of the invention
The purpose of this utility model provides a kind of pressure setting of powder test specimens of particle mean size tester, and the consistance that it can improve pressing pressure when the compacting test specimens makes the particle mean size test result of test specimens powder more accurate, has better consistance.
For this reason, the utility model provides a kind of particle mean size tester powder test specimens pressure setting, comprises the pressure gauge knob, it is characterized in that, described pressure gauge knob is provided with an idle rotation type torque spanner, tightens between described pressure gauge knob and the described idle rotation type torque spanner.
Preferably, be provided with the chucking screw between described pressure gauge knob and the described idle rotation type torque spanner.
In the utility model, by an idle rotation type torque spanner is installed on the pressure gauge knob of particle mean size tester, improve the consistance of pressing pressure when the compacting test specimens, made test specimens powder mean particle sizes test result more accurate, had better consistance.
Description of drawings
Fig. 1 is the structural representation according to the Fei Shi method particle mean size tester of prior art;
Fig. 2 is the structural representation according to particle mean size tester of the present utility model;
Fig. 3 is the partial enlarged drawing that the pressure gauge knob according to particle mean size tester of the present utility model is connected with the idle rotation type torque spanner.
Embodiment
Below in conjunction with accompanying drawing 1-3 embodiment of the present utility model is described.
In Fig. 1, Fig. 2 and Fig. 3,1 expression U-tube manometer glass tube, 2 expression measurement range knobs, 3 expression granularity reading plates, 5 expression high value pointer valves, 6 expression pressure gauge regulating water level knobs, 7 expression power switches, 8 expression pressure gauge bases, 9 expression measurement granularity coupon positions, 10 expression compacting test specimens positions, 13 expressions compress knob, 14 expression pressure device knobs, 15 are represented pressure gauge depression bars, 16 expression pressure gauge pointers, 18 expression idle rotation type torque spanneres.
According to the particle mean size that the Fei Shi method particle mean size tester of prior art is tested refractory metal and compound powder thereof, as shown in Figure 1, its measuring method comprises following step:
The first step, calibration: the measurement result of using the standard pipe calibration tester;
Second the step, produce test specimens: take by weighing the test specimens powder of constant weight, in the coupon of packing into, the coupon two ends are pressed with quick filter paper and porous copper plug;
The 3rd step, compacting test specimens, adjust the reading plate position: the coupon that will install test specimens is placed on compacting test specimens position 10, be rotated counterclockwise pressure gauge knob 14, make continuous pressure gauge depression bar 15 compacting test specimens downwards, after press power reaches predetermined value, the pressure gauge knob 14 that stops the rotation, translation granularity reading plate 3, make specimen height line, the fixedly position of granularity reading plate 3 on the pressure gauge pointer 16 alignment granularity reading plates 3;
The 4th step, measurement granularity: the coupon that will finish compacting is placed on the measurement granularity coupon position 9 on pressure gauge base 8 right sides, rotatably compresses knob 13 and compresses sample, guarantees that the coupon two ends are air tight.With water level in the pressure gauge pointer 16 alignment U type glass tubes 1, granularity is the particle mean size of tested powder on the pressure gauge pointer 16 indication granularity reading plates 3.
According to the utility model, as shown in Figure 2, the particle mean size that Shi Yongfeishi method particle mean size tester is tested refractory metal and compound powder thereof, its measuring process is as follows:
The first step, calibration:
Open pressure gauge power switch 7, preheater pressure gauge is adjusted U-tube manometer glass tube 1 water level, regulates pressure gauge knob 14 pressure gauge pointer 16 is alignd with the baseline of granularity reading plate 3; Regulate pressure gauge regulating water level knob 6, make the water level in the U-tube manometer glass tube 1 parallel with the table top of pressure gauge pointer 16.
The granulometry result of calibration " second gear " uses the same method.
Second goes on foot, produces test specimens:
Take by weighing the test specimens powder with the real density numerical value equal weight of test specimens, the powder end of packing into has been pressed in the coupon of quick filter paper and porous copper plug, the other end is compressed into quick filter paper and porous copper plug again.
The 3rd step, compacting test specimens:
The coupon that installs test specimens is placed on compacting test specimens position 10, slowly rotates idle rotation type torque spanner 18 counterclockwise, coupled pressure gauge knob 14 is rotated synchronously, drive pressure gauge depression bar 15 and move down, the compacting test specimens.Idle rotation type torque spanner 18 has been set the press power value in advance, and (sample of GB regulation is exerted pressure and is 22.7kg, the torque value of setting spanner is 2.22N*m, coupon build-in test sample is stressed reach the press power value of setting after, the folder mouth of idle rotation type torque spanner 18 unclamps and 18 idle running of idle rotation type torque spanner automatically, send " click is rattled away " voice signal during idle running, remind user of service's idle rotation type torque spanner 18 that stops the rotation.Translation granularity reading plate 3 makes the specimen height line on the pressure gauge pointer 16 alignment granularity reading plates 3.
The 4th step, measurement granularity:
Select " one grade " or " second gear " according to the granularity of mensuration powder, the coupon of finishing compacting is placed on the measurement granularity coupon position 9 on pressure gauge base 8 right sides, rotatably compress knob 13 and compress sample, guarantee that the coupon two ends are air tight.With the water level in the pressure gauge pointer 16 alignment U type glass tubes 1, granularity is the particle mean size of tested powder on the pressure gauge pointer 16 indication granularity reading plates 3.
Implication about term " the density values equal weight of test specimens " is exemplified below: the real density of Nd Fe B alloys micro mist is 7.5g/cm
3So the weight that takes by weighing test specimens is 7.5g; As test the powder of other refractory metals and compound, determine to take by weighing weight according to the real density value of measuring powder.As Nb
2O
5The real density of powder is 4.47g/cm3, take by weighing measure sample weight just be 4.47g.
Conventional torque spanner just can realize that when described press power value reaches particular set value the folder mouth of described idle rotation type torque spanner unclamps and the idle running of described idle rotation type torque spanner automatically, dallies the signal of can sounding during idle running when reaching limit value.
Claims (2)
1. the pressure setting of the powder test specimens of a particle mean size tester comprises the pressure gauge knob, it is characterized in that, described pressure gauge knob is provided with an idle rotation type torque spanner, tightens between described pressure gauge knob and the described idle rotation type torque spanner.
2. particle mean size tester powder test specimens pressure setting according to claim 1 is characterized in that: be provided with the chucking screw between described pressure gauge knob and the described idle rotation type torque spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200095639U CN201945538U (en) | 2011-01-13 | 2011-01-13 | Device for pressing powder test sample for average particle size tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200095639U CN201945538U (en) | 2011-01-13 | 2011-01-13 | Device for pressing powder test sample for average particle size tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945538U true CN201945538U (en) | 2011-08-24 |
Family
ID=44472877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200095639U Expired - Lifetime CN201945538U (en) | 2011-01-13 | 2011-01-13 | Device for pressing powder test sample for average particle size tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612887A (en) * | 2018-11-26 | 2019-04-12 | 东北大学 | A kind of gas impact couples the device of porous top plate punching press |
| CN111766184A (en) * | 2020-06-30 | 2020-10-13 | 吉林大学 | Method for measuring particle size distribution of titanium hydride powder compact |
-
2011
- 2011-01-13 CN CN2011200095639U patent/CN201945538U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612887A (en) * | 2018-11-26 | 2019-04-12 | 东北大学 | A kind of gas impact couples the device of porous top plate punching press |
| CN111766184A (en) * | 2020-06-30 | 2020-10-13 | 吉林大学 | Method for measuring particle size distribution of titanium hydride powder compact |
| CN111766184B (en) * | 2020-06-30 | 2023-07-25 | 吉林大学 | Method for measuring particle size distribution of titanium hydride powder compact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
|
| CX01 | Expiry of patent term |