CN106226386B - A kind of processing method of performance test composite fluorescence magnetic powder - Google Patents
A kind of processing method of performance test composite fluorescence magnetic powder Download PDFInfo
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- 239000006247 magnetic powder Substances 0.000 title claims abstract description 149
- 239000002131 composite material Substances 0.000 title claims abstract description 98
- 238000011056 performance test Methods 0.000 title claims abstract description 26
- 238000003672 processing method Methods 0.000 title claims abstract description 22
- 239000006185 dispersion Substances 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000002270 dispersing agent Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 27
- 238000012360 testing method Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000008399 tap water Substances 0.000 claims description 5
- 235000020679 tap water Nutrition 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- -1 feature It is Substances 0.000 claims 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 11
- 239000000725 suspension Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000001238 wet grinding Methods 0.000 description 4
- 239000013556 antirust agent Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 3
- 230000002335 preservative effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present invention provides a kind of performance test processing methods of composite fluorescence magnetic powder, steps are as follows: (1) disperse solution: composite fluorescence magnetic powder and dispersing agent are pressed (1.5-2.5): 1 (mass volume ratio), which is added to the water, to form first time dispersion liquid, the ratio of composite fluorescence magnetic powder and first time dispersion liquid is 1:(7-15) (mass volume ratio), remove water layer；(2) remove impurity for the first time: again plus water forms second of dispersion liquid, the ratio of composite fluorescence magnetic powder and second of dispersion liquid is 1:(7-15) (mass volume ratio), stirring, add defoaming agent, the volume ratio of dispersing agent and defoaming agent is (1.5-2.5): 1, remove water layer；(3) second of removal impurity: repetitive operation step (2) is primary；(4) magnetic powder is dried, it is cool to room temperature；(5) magnetic powder crushes, is dry；The composite fluorescence magnetic powder for being used directly for performance test is prepared in processing method through the invention, and step is simple and convenient.
Description
Technical field
The present invention relates to a kind of processing methods for detection magnetic powder, and in particular to a kind of performance test composite fluorescence magnetic
The processing method of powder belongs to magnetic powder inspection composite fluorescence magnetic particle capability testing field.
Background technique
The supply of material state of conventional tradition magnetic powder inspection fluorescentmagnetic particle(powder) is pulverulent solids, is needed when user uses magnetic powder
It is dispersed in carrier fluid in proportion and magnetic flaw detection ink use is made.Wherein, when configuring aqua fluorescence magnetic flaw detection ink, need to add suitable dispersion
Agent, defoaming agent, antirust agent and preservative, scene are more troublesome using a variety of auxiliary agents more than needing.In order to which scene is easy to use,
It has developed composite fluorescence magnetic powder both at home and abroad, when composite fluorescence magnetic powder situ configuration aqua fluorescence magnetic flaw detection ink, a small amount of water is first taken, title
Good composite fluorescence magnetic powder is poured into magnetic flaw detection ink bucket after being uniformly dispersed and is stirred evenly, and does not need to add any auxiliary agent, is used
It is very convenient.
Conventionally, before the magnetic powder of purchase is carried out production by user, it is necessary to need to carry out over-all properties index
(project of testing performance index generally has the parameters such as magnetic powder suspension, pollutant (non-fluorescence content of material), fluorescence coefficient for test
Test), only passed through the above testing performance index, just can be carried out the exploitation of subsequent powder product and production.
The composite fluorescence magnetic powder of purchase be common fluorescent magnetic powder according to certain process recipe addition dispersing agent, defoaming agent,
It packs and sells after the chemical substances such as antirust agent and preservative, drying, so carrying out performance indicator survey to composite fluorescence magnetic powder
The standard that examination can not just carry out testing performance index according to common fluorescent magnetic powder carries out, however there is no to compound both at home and abroad at present
The specific method that fluorescentmagnetic particle(powder) is tested for the property, so the composite fluorescence magnetic powder of purchase is just directly used in magnetic in industry at present
The exploitation (for example preparing powder core product) of powder product；Because not carrying out testing performance index, composite fluorescence is not known
The superiority and inferiority of the correlated performance of magnetic powder can thus have the hidden danger of quality of subsequent powder product.
Magnetic particle capability is one of the key factor for influencing magnetic powder detection quality, is also always a big technology hardly possible of puzzlement industry
Topic；Therefore, the performance of the composite fluorescence magnetic powder of purchase is detected correctly, in time, effectively, at low cost, is to guarantee product
An important ring for safety.
Summary of the invention
In order to overcome shortcoming and deficiency existing in the prior art, the present invention provides a kind of performance test composite fluorescences
The processing method of magnetic powder, so that composite fluorescence magnetic powder after processing is able to carry out whole testing performance indexes, it is of the invention
Processing method is simple and convenient, accurate, timely, effective, at low cost.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of processing method of performance test composite fluorescence magnetic powder, this method carry out in the environment not less than 0 DEG C, wrap
Include following steps:
(1) disperse solution: by the composite fluorescence magnetic powder of purchase and dispersing agent according to (1.5-2.5): 1 ratio (mass body
Product ratio) it is added to the water, and be sufficiently stirred and to form first time dispersion liquid, wherein composite fluorescence magnetic powder and the first time dispersion liquid
Ratio be 1:(7-15) (mass volume ratio), after standing, remove the water layer on composite fluorescence magnetic powder top；
(2) remove impurity for the first time: the composite fluorescence magnetic powder in step (1) adds water to form second of dispersion liquid again,
The ratio of composite fluorescence magnetic powder and second of dispersion liquid is 1:(7-15) (mass volume ratio), it is sufficiently stirred；It adds and disappears
Infusion simultaneously stirs evenly, and the volume ratio of the dispersing agent and defoaming agent is (1.5-2.5): 1, after standing, remove composite fluorescence magnetic
The water layer on powder top；
(3) second of removal impurity: the composite fluorescence magnetic powder in step (2) adds water to form third time dispersion liquid again,
The ratio of composite fluorescence magnetic powder and the third time dispersion liquid is 1:(7-15) (mass volume ratio), it is sufficiently stirred；After standing,
Remove the water layer on composite fluorescence magnetic powder top；
(4) magnetic powder is dried: the composite fluorescence magnetic powder in step (3) is dried, it is cool to room temperature, and it is standby to take out composite fluorescence magnetic powder
With；
(5) magnetic powder crushes: above-mentioned composite fluorescence magnetic powder being pulverized into powder, kept dry finally obtains performance test
With composite fluorescence magnetic powder, the testing performance index of magnetic powder can be directly used for.
Further, in the step (1), the mass volume ratio of composite fluorescence magnetic powder and dispersing agent is (1.8-2.2): 1；
The mass volume ratio of composite fluorescence magnetic powder and first time dispersion liquid is 1:(8-10).In the step (2), dispersing agent and defoaming agent
Volume ratio be (1.8-2.2): 1.In the step (3), the mass volume ratio of composite fluorescence magnetic powder and third time dispersion liquid is
1:(8-12).In the step (4), the drying temperature of composite fluorescence magnetic powder is 60-100 DEG C.In the step (5), it is prepared into
The partial size and granularity of the performance test arrived composite fluorescence magnetic powder are identical as the partial size of composite fluorescence magnetic powder of purchase.
Further, the defoaming agent is industrial defoaming agent；Dispersing agent is dispersion of industry agent.The time of the standing is
1-2h.The mode that the magnetic powder crushes is mechanical crushing or hand lapping.The water is tap water.
The device have the advantages that as follows:
(1) the composite fluorescence magnetic powder of purchase is directly used in the exploitation of powder product at present, due to not carrying out in industry
Testing performance index can thus generate subsequent powder product so not knowing the superiority and inferiority of the correlated performance of composite fluorescence magnetic powder
Quality problems, there are security risks.
For the above current Industry, the composite fluorescence magnetic powder of purchase is processed into can directly carry out for the first time by the present invention
The magnetic powder of performance test, the processing method belong to the pioneering of industry field, can carry out purchase by the method for the invention
Composite fluorescence magnetic powder containing various auxiliary agents is processed into the magnetic powder for being able to carry out testing performance index, then passage capacity index is surveyed
Examination, magnetic powder just can be carried out subsequent product development and production, and the present invention solves the big technical problem in the industry.
(2) raw material and equipment needed for the present invention are less, and simple process, reaction time is short, easy to operate, and it is raw to be suitable for industry
It produces.
(3) common fluorescent magnetic powder can be tested for the property judge whether it is qualified；Although composite fluorescence magnetic powder makes
It with convenient, but cannot directly be tested for the property, to can not judge its performance state；Through the method for the present invention, that treated is multiple
The test of the indexs such as pollutant, suspension, fluorescence coefficient can be carried out as common fluorescent magnetic powder by closing fluorescentmagnetic particle(powder)；And
And it is processed by the invention after composite fluorescence magnetic powder carry out testing performance index when, can be according to identical with common fluorescent magnetic powder
Method weighs its quality and is tested.
Specific embodiment
The present invention is described further combined with specific embodiments below.
Embodiment 1
The processing method of the performance test of the present embodiment composite fluorescence magnetic powder needs to be not less than 0 DEG C of ring in environment temperature
It carries out in border, and sequentially implements according to the following steps:
(1) prepare material: preparing composite fluorescence magnetic powder, dispersion of industry agent (wetting agent), industrial defoaming agent, blender, day
The correlation utensil such as flat scale, baking oven and beaker；
(2) disperse solution: weighing 200g composite fluorescence magnetic powder with day chessboard, composite fluorescence magnetic powder is poured into the beaker of 2000mL
In, and dispersing agent 100ml is added, tap water is added into beaker, its total volume is made to reach 1000mL, is sufficiently stirred with glass bar
It mixes, so that composite fluorescence magnetic powder is fully dispersed into water；It adds water to 2000mL and forms first time dispersion liquid；Composite fluorescence magnetic powder
The preferred proportion of the total volume of quality and first time dispersion liquid is 1:10 (mass volume ratio), composite fluorescence magnetic powder and dispersing agent
Preferred proportion 2:1 (mass volume ratio) stands 1 hour；Remove the water layer on magnetic powder top in beaker；
(3) impurity is removed for the first time: being rejoined tap water into beaker and is formed second of dispersion liquid, reaches its total volume
To 2000mL, the preferred proportion of the total volume of the quality of composite fluorescence magnetic powder and second of dispersion liquid is 1:10 (quality volume
Than)；It is sufficiently stirred with glass bar, and 50mL defoaming agent (preferred volume ratio of dispersing agent and defoaming agent is 2:1) is added, stirring is equal
It is even, then 1 hour is stood, remove the transparent water layer of beaker middle and upper part；
(4) second of removal impurity: tap water is rejoined into beaker and forms third time dispersion liquid, reaches its total volume
To 2000mL, the preferred proportion of the total volume of the quality and third time dispersion liquid of composite fluorescence magnetic powder is 1:10 (quality volume
Than), it is sufficiently stirred with glass bar；1 hour is stood, removes the transparent water layer of beaker middle and upper part again；By removing twice above
Step, so that the substances such as dispersing agent, defoaming agent, antirust agent, preservative are eliminated as much as；
(5) it dries magnetic powder: beaker being put into 60-100 DEG C of drying box, until magnetic powder is dried；Beaker is taken out, magnetic powder is cool
To room temperature, it is spare to take out magnetic powder；
(6) magnetic powder crushes: above-mentioned magnetic powder being put into blender, magnetic powder is blended into powdered or using hand lapping
Mode crushed；Magnetic powder takes out after crushing, and is put into kept dry in storing containers, finally obtains performance test with compound glimmering
Optomagnetic powder, the composite fluorescence magnetic powder with the purchase in step (1) such as partial size, granularity of performance test composite fluorescence magnetic powder
Do not change.
Embodiment 2
Other steps are same as Example 1, and different places is:
The dispersion solution of step (2): the preferred proportion of the total volume of the quality and first time dispersion liquid of composite fluorescence magnetic powder
It is 1:8, the preferred proportion 1.8:1 (mass volume ratio) of composite fluorescence magnetic powder and dispersing agent；
First time of step (3) removes impurity: the total volume of the quality of composite fluorescence magnetic powder and second of dispersion liquid it is excellent
Selecting ratio is 1:7；The volume ratio of dispersing agent and defoaming agent is 1.8:1；
Second of step (4) removal impurity: the total volume of the quality and third time dispersion liquid of composite fluorescence magnetic powder it is excellent
Selecting ratio is 1:8.
Embodiment 3
Other steps are same as Example 1, and different places is:
The dispersion solution of step (2): the preferred proportion of the total volume of the quality and first time dispersion liquid of composite fluorescence magnetic powder
It is 1:7, the preferred proportion 2.2:1 (mass volume ratio) of composite fluorescence magnetic powder and dispersing agent；
First time of step (3) removes impurity: the total volume of the quality of composite fluorescence magnetic powder and second of dispersion liquid it is excellent
Selecting ratio is 1:15；The volume ratio of dispersing agent and defoaming agent is 2.2:1；
Second of step (4) removal impurity: the total volume of the quality and third time dispersion liquid of composite fluorescence magnetic powder it is excellent
Selecting ratio is 1:12.
Embodiment 4
Other steps are same as Example 1, and different places is:
The dispersion solution of step (2): the preferred proportion of the total volume of the quality and first time dispersion liquid of composite fluorescence magnetic powder
It is 1:15, the preferred proportion 1.5:1 (mass volume ratio) of composite fluorescence magnetic powder and dispersing agent；
First time of step (3) removes impurity: the total volume of the quality of composite fluorescence magnetic powder and second of dispersion liquid it is excellent
Selecting ratio is 1:7；The volume ratio of dispersing agent and defoaming agent is 1.5:1；
Second of step (4) removal impurity: the total volume of the quality and third time dispersion liquid of composite fluorescence magnetic powder it is excellent
Selecting ratio is 1:7.
Embodiment 5
Other steps are same as Example 1, and different places is:
The dispersion solution of step (2): the preferred proportion of the total volume of the quality and first time dispersion liquid of composite fluorescence magnetic powder
It is 1:15, the preferred proportion 2.5:1 (mass volume ratio) of composite fluorescence magnetic powder and dispersing agent；
First time of step (3) removes impurity: the total volume of the quality of composite fluorescence magnetic powder and second of dispersion liquid it is excellent
Selecting ratio is 1:15；The volume ratio of dispersing agent and defoaming agent is 2.5:1；
Second of step (4) removal impurity: the total volume of the quality and third time dispersion liquid of composite fluorescence magnetic powder it is excellent
Selecting ratio is 1:15.
The performance test that above-described embodiment is handled can directly carry out testing performance index with composite fluorescence magnetic powder, tool
Body processing method is as follows:
(1) pollutant monitoring:
A) the dry processing magnetic powder of 20g is weighed, is equably sprinkled upon on clean blank sheet of paper of the area not less than 200mm × 300mm；
B) magnetic suck instrument power supply is opened, magnetic suck instrument electromagnetic wand is vertically placed on to the top of magnetic powder, enables the magnetic powder on upper layer
Gentle is adsorbed on electromagnetic wand, carefully removes the electromagnetic wand for being adsorbed with magnetic powder, then cuts off the power, and allows the magnetic of absorption
Powder is fallen on one side；
C) step b) is repeated, until all magnetic powders that can be adsorbed are sucked, weighs remaining nonmagnetic powder on blank sheet of paper,
Calculate mass percent；
D) step a)~c is repeated), new magnetic powder is needed to change every time, takes 3 average values.
(2) suspension detects:
With the suspension of alcohol precipitation measurement magnetic powder, to reflect the granularity of magnetic powder, alcohol and magnetic powder should have significantly
Line of demarcation, and the height of the magnetic powder column of boundary is no less than 200mm；This method is that use scale with millimeter be indexing, long
400mm, internal diameter are (10 ± 0.5) mm, bottom is tested far from the suspension pipe that top range scale is 300mm, and steps are as follows:
A) weigh (3 ± 0.1) g it is dry, without magnetized magnetic powder, pour into suspension pipe, inject a small amount of dehydrated alcohol extremely
150mm pillar height is firmly rocked to uniform, is reinjected dehydrated alcohol to 300mm pillar height, is inverted and is uniformly mixed repeatedly；
B) after mixing, which should be upright rapidly, is fixed on buret clamping, while timing, stands 3min,
Read the magnetic powder pillar height degree of obvious boundary；
C) step a) and b) is repeated, new magnetic powder is needed to change every time, takes 3 average values.
(3) dry powder brightness, wet-milling brightness detection
Dry powder brightness, wet-milling brightness are tested using fluorescent brightness tester.
(1) test procedure of dry powder luminance test is as follows:
A) fluorescent brightness tester booting preheating 15min~20min, instrument " correction " knob are closed；Adjust " zero-bit " rotation
Button adjusting to display reading is " zero "；
B) fluorescence standard plate is put into the window of instrument dark space, closes window cover；Instrument " correction " knob is adjusted again to photometer
110 reading of display；At this point, referred to as reading of standard, is indicated with " X "；
C) tested magnetic powder is loosely packed into normal glass ware, is struck off and (cannot be flattened) with ruler, is wiped outside glass dish
Residual powder；
D) on-gauge plate in the window of instrument dark space is taken out, carefully the glass dish for filling magnetic powder is put into the window of instrument dark space and is surveyed
Examination, after instrument shows stable reading, take reading X1, calculates fluorescentmagnetic particle(powder) with respect to dry powder brightness, it may be assumed that
E) step b)~d is repeated), new magnetic powder is needed to change every time, takes the average value of 3 measurement results.
(2) test procedure of wet-milling luminance test is as follows:
A) 1L hydromagnetic suspension is prepared as required, and after mixing evenly by regulation, stands at least 12h；
B) it is put into normal glass ware with magnetic suck instrument from the magnetic powder after impregnating is drawn in above-mentioned hydromagnetic suspension, absorption
Magnetic blow out coating controls about 1mm~2mm until glass dish is opaque；
C) it allows magnetic powder to stand 30s in glass dish, removes surface water layer, wipe the water mark outside glass dish；
D) fluorescence standard plate is put into the window of instrument dark space, closes window cover；Instrument " correction " knob is adjusted again to photometer
110 reading of display；At this point, referred to as reading of standard, is indicated with " X "；Carefully glass dish is put into the window of instrument dark space and is measured, to
After showing stable reading, magnetic powder brightness readings X2 is write down, calculates fluorescentmagnetic particle(powder) with respect to wet-milling brightness, it may be assumed that
E) it is operated 3 times by above-mentioned steps, needs to change new magnetic powder every time, take the average value of 3 measurement results.
The foregoing is merely preference embodiments of the invention, are not intended to limit the scope of the present invention..Appoint
How within the spirit and principles in the present invention made any modifications, equivalent replacements, and improvements etc., should be included in of the invention
Within claims.
Claims (10)
1. a kind of performance test processing method of composite fluorescence magnetic powder, which is characterized in that the method is being not less than 0 DEG C of ring
It is carried out in border, described method includes following steps:
(1) disperse solution: by the composite fluorescence magnetic powder of purchase and dispersing agent according to (1.5-2.5): water is added in 1 mass volume ratio
In, and be sufficiently stirred and to form first time dispersion liquid, wherein the mass volume ratio of composite fluorescence magnetic powder and the first time dispersion liquid
For 1:(7-15), after standing, the water layer on composite fluorescence magnetic powder top is removed；
(2) remove impurity for the first time: the composite fluorescence magnetic powder in step (1) adds water to form second of dispersion liquid again, compound
The mass volume ratio of fluorescentmagnetic particle(powder) and second of dispersion liquid is 1:(7-15), it is sufficiently stirred；It adds defoaming agent and stirs
Uniformly, the volume ratio of the dispersing agent and defoaming agent is (1.5-2.5): 1, after standing, remove the water on composite fluorescence magnetic powder top
Layer；
(3) second of removal impurity: the composite fluorescence magnetic powder in step (2) adds water to form third time dispersion liquid again, compound
The mass volume ratio of fluorescentmagnetic particle(powder) and the third time dispersion liquid is 1:(7-15), it is sufficiently stirred；After standing, composite fluorescence is removed
The water layer on magnetic powder top；
(4) magnetic powder is dried: the composite fluorescence magnetic powder in step (3) is dried, it is cool to room temperature, and it is spare to take out composite fluorescence magnetic powder；
(5) magnetic powder crushes: above-mentioned composite fluorescence magnetic powder being pulverized into powder, kept dry, finally obtains performance test with again
Fluorescentmagnetic particle(powder) is closed, can be directly used for the testing performance index of magnetic powder.
2. a kind of processing method of performance test composite fluorescence magnetic powder as described in claim 1, which is characterized in that the step
Suddenly in (1), the mass volume ratio of composite fluorescence magnetic powder and dispersing agent is (1.8-2.2): 1；Composite fluorescence magnetic powder and first time point
The mass volume ratio of dispersion liquid is 1:(8-10).
3. a kind of processing method of performance test composite fluorescence magnetic powder as described in claim 1, which is characterized in that the step
Suddenly in (2), the volume ratio of dispersing agent and defoaming agent is (1.8-2.2): 1.
4. a kind of processing method of performance test composite fluorescence magnetic powder as described in claim 1, which is characterized in that the step
Suddenly in (3), the mass volume ratio of composite fluorescence magnetic powder and third time dispersion liquid is 1:(8-12).
5. a kind of processing method of the performance test as described in claim 1-4 is one of any with composite fluorescence magnetic powder, feature
It is, in the step (4), the drying temperature of composite fluorescence magnetic powder is 60-100 DEG C.
6. a kind of processing method of the performance test as described in claim 1-4 is one of any with composite fluorescence magnetic powder, feature
Be, in the step (5), the partial size and granularity of the performance test composite fluorescence magnetic powder being prepared and purchase it is compound
The partial size of fluorescentmagnetic particle(powder) is identical.
7. a kind of processing method of the performance test as described in claim 1-4 is one of any with composite fluorescence magnetic powder, feature
It is, the defoaming agent is industrial defoaming agent；Dispersing agent is dispersion of industry agent.
8. a kind of processing method of the performance test as described in claim 1-4 is one of any with composite fluorescence magnetic powder, feature
It is, the time of the standing is 1-2h.
9. a kind of processing method of the performance test as described in claim 1-4 is one of any with composite fluorescence magnetic powder, feature
It is, the mode that the magnetic powder crushes is mechanical crushing or hand lapping.
10. a kind of processing method of the performance test as described in claim 1-4 is one of any with composite fluorescence magnetic powder, feature
It is, the water is tap water.
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