CN108588799A - A kind of sand device and preparation method of electroplating abrasion wheel - Google Patents
A kind of sand device and preparation method of electroplating abrasion wheel Download PDFInfo
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- CN108588799A CN108588799A CN201810574452.9A CN201810574452A CN108588799A CN 108588799 A CN108588799 A CN 108588799A CN 201810574452 A CN201810574452 A CN 201810574452A CN 108588799 A CN108588799 A CN 108588799A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
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Abstract
The present invention relates to a kind of sand device of electroplating abrasion wheel and preparation methods.The sand device of the electroplating abrasion wheel, including holder and be fixed on holder can reciprocating screening group in the horizontal direction, the screening group include vertically at least two layers of sieve for setting gradually.The sand device of electroplating abrasion wheel provided by the invention, mainly the abrasive material in sieve is set vertically to be scattered to the surface to be plated of grinding wheel base body using the screening of screening group action, by above-mentioned process of being scattered, the abrasive grain of accumulation can be made on sand to grinding wheel base body in many discrete states, so as to improve the uniformity of abrasive material distribution, it realizes the high and low controllable of abrasive concentration, reduces abrasive grain trim amount after plating and modified after even avoiding grinding wheel from plating, to improve grinding wheel service life.
Description
Technical field
The invention belongs to the preparation fields of electroplating abrasion wheel, and in particular to a kind of sand device of electroplating abrasion wheel and preparation side
Method.
Background technology
Existence form of the extra hard material grinding wheel because of its working lining single layer abrasive material is electroplated, with vitrified bonded grinding wheel, resin knot
Mixture grinding wheel is compared, and has the advantages that cutting is sharp, grinding efficiency is high, it is whole to be excused from a college course in grinding operation, in automobile engine, refrigeration
All conglomeraties such as compressor, LED, photovoltaic, glass are widely used.
In recent years plating extra hard material grinding wheel can the material of workpieces processing changed, the metal kernel of powder metallurgy forming
Base workpiece is more and more, and to the chip removal performance requirement of grinding wheel, more stringent requirements are proposed.Itself with regard to grinding wheel, abrasive material is dense for list
Degree, the abrasive material degree that is evenly distributed play a key effect to the chip removal performance of grinding wheel.And it was being manufactured in plating extra hard material grinding wheel
Cheng Zhong, as controlling technique, be evenly distributed to modify after degree, plating to above-mentioned abrasive concentration, abrasive material (generates upper sand when upper sand
Folded sand, floating sand) etc. technical indicators play the role of main controlling, the performance of grinding wheel will be directly affected.
Abrasive concentration influences the surface roughness of workpieces processing, and abrasive concentration is high, workpieces processing surface roughness Ra numerical value
Low-level state, abrasive dust is kept easily to accumulate；Concentration is low, and workpieces processing surface roughness Ra numerical value keeps high-level state, chip removal
It is convenient.The folded sand that generates during upper sand, floating sand phenomenon mainly influence the dimensional accuracy of grinding wheel, need with idler wheel or other repair
Whole tool reconditioning is to defined dimensional accuracy, to ensure the dimensional accuracy of workpieces processing.Being modified after plating not only needs reconditioning to remove
" high point " that folded sand, floating sand generate, and normal abrasive material can also be removed by reconditioning, and abrasive material height of protrusion reduces, abrasive grain blade
It is smoothed.The service life for being obviously unfavorable for grinding wheel is modified after plating, in addition to this excessive finishing makes abrasive grain top by sharp sword
Become plane, the surface roughness Ra numerical value of workpieces processing can be reduced.
Currently, the upper sand method of plating extra hard material grinding wheel mainly has sand buring method, knockout method (stucco method).Sand buring method is main
The matrix complex-shaped suitable for sand face, abrasive size is big；It is small that knockout method is primarily adapted for use in sand face simple shape, abrasive size
Matrix.No matter sand method, abrasive material must be in close contact with preplating bottom (nickel plating) on which kind of, carry out unloading sand after a period of time is electroplated
Operation.The abrasive material of sand and substrate contact preplating bottom is all consolidated in preplating bottom by physical absorption, chemisorption in sand buring method
On layer, other, which are dispersed in be formed on bottom abrasive material not in contact with the abrasive segments of nickel layer, floats sand, and another part abrasive material is dispersed in bottom
Between layer abrasive grain, with the electro-deposition of nickel ion, root is wrapped to form folded sand by nickel layer.Existing sand mode of unloading is to use
Deionized water or plating solution rinse sand face, this to unload sand mode to remove floating sand, folded sand not thorough enough, partly remain on sand face
Floating sand, folded sand form " high point ", need to modify.Knockout method is that abrasive material suction pipe or spoon are sprinkled upon to the part in matrix sand face
Region, plating a period of time unloads sand, then carries out the upper sand of next regional area.Knockout method can be considered that the short time (compares and buries sand
The sand time in method) sand face part sand buring method, it is that grinding wheel base body is rotated in bath trough to next knockout to unload sand mode mostly
Region, extra abrasive material drops down onto bath trough, adjacent sand face region (not upper sand region) in rotation process.Knockout method unloads sand behaviour
The case where work is also not thorough enough, floating sand, folded sand still remains, and still needs to modify " high point ".No matter which kind of goes up sand mode, abrasive material
Always it is covered with grinding wheel abrasive material bottom, the distance between most of abrasive grains is less than its abrasive size numerical value, or even abrasive grain occurs
The phenomenon that " back-to-back ", overall performance are that abrasive concentration is high；A small number of abrasive grain spacing are more than even times over abrasive size number
Value, shows as that abrasive material is sparse, and concentration is low.
In general, the abrasive concentration distribution for the grinding wheel that prepared by the existing above method differs greatly, and abrasive material is distributed equal
Even property is not satisfactory.
Invention content
The purpose of the present invention is to provide a kind of sand devices of electroplating abrasion wheel, to solve existing for existing upper sand method
The poor problem of uniformity of abrasive material distribution.
The present invention also provides a kind of preparation methods of electroplating abrasion wheel.
To achieve the above object, the technical solution adopted in the present invention is：
A kind of sand device of electroplating abrasion wheel, including holder and be fixed on holder can be reciprocating in the horizontal direction
Screening group, the screening group include vertically at least two layers of sieve for setting gradually.
The sand device of electroplating abrasion wheel provided by the invention mainly makes the mill in sieve using the screening of screening group action
Material is vertically scattered to the surface to be plated of grinding wheel base body, and by above-mentioned process of being scattered, it is in one that can make the abrasive grain of accumulation
Discrete state on sand to grinding wheel base body, so as to improve the uniformity of abrasive material distribution, realize that the high and low of abrasive concentration can
Control reduces abrasive grain trim amount after plating and is modified after even avoiding grinding wheel from plating, to improve grinding wheel service life.
In order to preferably delay the falling speed of abrasive material, the quantity that control abrasive grain falls, Abrasive agglomerate when sand in reduction
Chance, it is preferred that the screening group contains 4-6 layers of sieve.Further to optimize the falling speed and whereabouts quantity of abrasive material, carry
Uniformity on height when sand, it is preferred that sieve pore area is provided on the sieve, the sieve pore area of adjacent two layers sieve is in vertical direction
On projection it is misaligned, more preferably project and be not overlapped.It is arranged by the cross structure in above-mentioned sieve pore area, can be extended under abrasive grain
It falls, optimize dispersity between abrasive grain, and then have the function that improve abrasive material distributing homogeneity.
To simplify reciprocator, it is preferred that the holder includes left and right column, the screening group by be located at it is left,
The spring straining of right both sides is arranged between left and right column.
A kind of upper sand method of electroplating abrasion wheel, includes the following steps：Make the abrasive material in sieve using the screening of multilayer screen cloth
It is scattered to the working face to be formed of grinding wheel base body.
The upper sand method of the electroplating abrasion wheel of the present invention realizes the dispersion of abrasive material using the screening action of multilayer screen cloth, slows down
Uniformity when falling, and then being conducive to improve sand reduces the generation for floating sand, folded sand phenomenon so that follow-up finishing tends to letter
List is excused from a college course whole.
For advanced optimize abrasive material uniformly be scattered, it is preferred that it is described screening be control sieve make in the horizontal direction it is past
Multiple movement.
Preferably to delay the whereabouts of abrasive material, the whereabouts quantity of abrasive grain is controlled, further increases the uniformity of abrasive material distribution,
Preferably, it is provided with sieve pore area on the sieve, the projection of the sieve pore area of adjacent two layers sieve in the vertical direction is misaligned.
The screen size of the sieve is more than the granularity of abrasive material.On this in sand method, sieve has with traditional sieving actoion
Difference only plays the role of making abrasive material to scatter whereabouts, the coarseness abrasive material for being such as 80/100 for granularity, may be selected it is corresponding more
Large-sized sieve, such as 60 mesh screens.
The abrasive material is combination grain abrasive material, including the coarseness abrasive grain of targeted particle size abrasive grain formation and granularity less than coarse grain
Spend the fine granularity abrasive grain of abrasive grain.Using the effect of combination grain abrasive grain primarily to adjusting the concentration of abrasive material, fine granularity abrasive grain
It is wrapped up to the 50% of its grain size or 50% by nickel layer by nickel layer package, burial, the abrasive material of coarseness during thickening is electroplated
Below so that be exposed at all coarseness abrasive materials of abrasive material of matrix surface bottom nickel layer.In combination grain abrasive material to grinding wheel base body
When being scattered, fine granularity abrasive grain occupies certain position, and then can control on grinding wheel base body the concentration of (coarseness) abrasive material, for more
Good adjusting abrasive concentration, it is preferred that the grain size of coarseness abrasive grain is the 2 times or more of fine granularity Abrasive Particle Size.
From taking into account abrasive concentration and dispersion effect, it is preferred that the mass ratio of coarseness abrasive material and fine granularity abrasive material is
(3-10)：1.
A kind of preparation method of electroplating abrasion wheel, includes the following steps：
1) sand on：The abrasive material in sieve is set to be scattered to the working face to be formed of grinding wheel base body using the screening of multilayer screen cloth
On；
2) plating thickening is carried out on after sand, removes and floats sand, folded sand.
In step 1), the upper sand is carried out after abrasive material is pre-processed again.The pretreatment of abrasive material is that abrasive material is carried out alkali
It washes, pickling processes.It is the sodium hydroxide solution of 30%-50% that mass concentration, which can be used, in alkali cleaning processing, and alkali cleaning processing is keeping hydrogen
It is carried out in the state of sodium hydroxide solution boiling.Pickling processes use chloroazotic acid, pickling processes keep chloroazotic acid boiling in the state of into
Row.After alkali cleaning, pickling processes, the pH value for being further washed to washing lotion is neutrality, and the pretreatment of abrasive material is completed in drying.
The grinding wheel base body is the grinding wheel base body Jing Guo pre- plating.Pre- plating can form preplating bottom, in the preplating
On bottom when upper sand, the bond strength of working lining can be improved.
In step 1), the screening is that control sieve is reciprocating in the horizontal direction.Sieve is provided on the sieve
Porose area, the projection of the sieve pore area of adjacent two layers sieve in the vertical direction are misaligned.The screen size of the sieve is more than abrasive material
Granularity.The abrasive material is combination grain abrasive material, including the coarseness abrasive material of targeted particle size abrasive grain formation and granularity less than coarse grain
Spend the fine granularity abrasive material of abrasive material.Preferably, the mass ratio of coarseness abrasive material and fine granularity abrasive material is (3-10)：1.
In step 1), upper sand first is carried out to a side end face of grinding wheel base body, after then overturning grinding wheel base body, then to another
Side end face carries out sand.From the consolidation effect for taking into account uniformity and abrasive material that abrasive material is distributed, it is preferred that any side end face
The upper sand time be 3min-10min, current density when upper sand is 0.5A/dm2-0.8A/dm2。
In step 2), current density when plating thickeies is 0.5A/dm2-1.2A/dm2, time 1.5-2.5h.Step 1)
When carrying out sand operation, grinding wheel base body be horizontally arranged (end face is parallel to slot bottom), in order to make plating thicken process it is uniform, effectively into
Row, it is preferred that when plating thickeies, grinding wheel base body places (end face is perpendicular to slot bottom) vertically.
In step 2), control grinding wheel rotation is removed using steel brush contact with abrasive material layer surface and floats sand, folded sand.It removes floating
After sand, folded sand, continue that thickening processing is electroplated, sand concentration as above reaches desired value, controls the embedment rate qualification of abrasive material.Subsequently
The current density that plating thickeies processing is 0.5A/dm2-1.2A/dm2, time 10min-30min.
It in step 2), removes after floating sand, folded sand, if abrasive concentration is less than desired value, is then located at coarseness using granularity and grinds
Abrasive material between grain and fine granularity abrasive grain carries out stop-off by step 1).When stop-off, stop-off abrasive material increases between coarse grained abrasive
The concentration of abrasive material, since embedding location of the stop-off abrasive material in coating is shallow, the abrasive material that coarseness abrasive material is less than using grain size is carried out
Stop-off is removed after floating the techniques such as sand, folded sand, the height of protrusion and ruler of abrasive grain on grinding wheel base body by thickening processing is subsequently electroplated
It is very little almost the same, and then the continuous controllable adjustment of abrasive size not only may be implemented, but also the consistent of abrasive grain blade can be improved
Property.
It removes after floating sand, folded sand, if abrasive concentration is higher than desired value, then proves that upper sand amount is excessive, it can be by hand by abrasive material
It wipes off, the ratio of fine granularity abrasive material, then recycles above-mentioned side in the amount of abrasive or increase combination grain abrasive material in reduction when sand
Method makes abrasive concentration reach desired value.
Using the present invention preparation method can high degree improve abrasive material distribution uniformity, reach with single abrasive material be circle
The heart, the abrasive grain number on same radius (numerical value within the scope of 2 times of average grit diameters) circle are not less than 4；It is super that plating can be controlled
The abrasive concentration of hard material grinding wheel realizes that abrasive grain spacing is continuously adjustable in 0.2 times to 2 times of average grit diameter；Also may be used
It is reduced with high degree and floats sand, folded sand phenomenon so that follow-up finishing tends to be simple or is excused from a college course whole.
Description of the drawings
Fig. 1 is the structural schematic diagram of the sand device of the electroplating abrasion wheel of the present invention；
Fig. 2 is the sieve pore distributing position schematic diagram of adjacent two layers sieve, and wherein 2a is bottom screen, and 2b is upper screen；
Fig. 3 is the operating diagram of the upper sand method of the present invention；
Fig. 4 is the structural schematic diagram of medium plain emery wheel substrate clamp of the embodiment of the present invention；
Fig. 5 is the schematic diagram removed in the embodiment of the present invention when floating sand, folded sand operation.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The embodiment 1 of the preparation method of the electroplating abrasion wheel of the present invention, withCompressor with slot milling grinding wheel be implement pair
As abrasive material is the diamond abrasive of granularity 80/100, and coating embedment rate is 50%, specifically uses following steps：
1) pretreatment of abrasive material：The Buddha's warrior attendant stone mill that granularity by gross mass 3000ct is 80/100 and granularity is 170/200
Material in mass ratio 10:1 mixing, is placed in the beaker for filling 40wt% sodium hydroxide solutions, is heated to fluidized state and keeps
20min, cooled to room temperature state.After outwelling sodium hydroxide solution, abrasive material is cleaned using deionized water, until clear
The pH value of washing lotion is neutrality, completes alkali cleaning.Abrasive material after alkali cleaning is placed in the beaker for filling chloroazotic acid, heat and is stirred to boiling
State is kept 20min, isolates abrasive material later, cleaned using deionized water, until the pH value of cleaning solution is neutrality, it is complete
At pickling.Abrasive material after pickling is moved in stainless steel pallet, blade is used in combination uniformly to spread out, which is placed in drying box,
Drying temperature is set as 100 DEG C, dry 4h, the abrasive material after drying is collected into plastic cup, and upper sand is spare.
The pretreatment of grinding wheel base body：Grinding wheel base body is after ultrasonic oil removing, washing, polishing, using nylon clamping plate to grinding wheel
The non-surfacing of matrix carries out clamping protection, with grinding wheel base body component is made after electrode assembling in case plating.Grinding wheel base body is carried out
After electrolytic etching (removing oxide layer), deionization washing, preplating, sand operation is carried out.
2) the upper sand of the sieve that shakes：Keep multilayer screen cloth reciprocating in the horizontal direction, it is pretreated to weigh 10mL steps 1)
Compound abrasive is sprinkling upon on sieve, and compound abrasive waits for surfacing by being fallen after sieve in the grinding wheel base body below multilayer screen cloth
On, current density is 0.5A/dm during upper sand2, the upper sand time is 5min, altogether upper sand 20mL.It, will after the upper sand of upper surface
Grinding wheel base body component overturns 180 °, and the upper sand of lower face is completed with reference to the upper sand operation of the step upper surface, is unloaded after the completion of upper sand
Sand.
3) thickening is handled：The grinding wheel base body component for completing upper sand is subjected to thickening processing, when thickening processing, will be horizontally arranged
Grinding wheel base body component overturn 90 ° hang up, control thicken current density be 0.5A/dm2, the thickening time is 2.5h.
4) it removes and floats sand, folded sand：The grinding wheel that step 3) obtains is set to be rotated with the speed of 100r/min, one steel brush of setting is in mill
Bed of material surface continues 1min by the collision of steel wire and abrasive material, friction to remove floating sand, folded sand.
5) thickening is handled：In current density it is 0.5A/dm by step 4) treated grinding wheel2Under, processing 10min is thickeied,
Grinding wheel is placed vertically when thickening processing, is reached the horizontal positioned and close plating solution liquid level of grinding wheel after thickening the time, is observed abrasive material
Upper sand concentration.
At this point, if upper sand concentration is less than desired value, the diamond abrasive (warp for the use of granularity being 120/140 or 140/170
Cross the identical pretreatment with step 1)) carry out stop-off, when stop-off, with reference to the operation of step 2)-step 5), by 120/140 or
140/170 diamond abrasive is filled between upper grain of sand for the first time, and abrasive concentration is made to increase and reach desired value.
If upper sand concentration is more than desired value, grinding wheel is horizontally arranged (end face parallel slot bottom), human hand blade is by abrasive material
It wipes off, is allowed to be detached from grinding wheel base body, re-starts sand.Inventory halves when upper sand again, keeps abrasive material dense using the above method
Degree reaches desired value.
Grinding wheel is taken out after above-mentioned steps, is removed fixture, is air-dried in case subsequent detection, finishing after hot water cleaning.
In the preparation process of above-mentioned electroplating abrasion wheel, the concentration of abrasive material is substantially the concentration of coarseness abrasive material, fine granularity mill
Material is wrapped up by nickel layer to its grain size during thickening is handled by coating (nickel layer) package, burial, the abrasive material of coarseness
50% or 50% or less so that be exposed at all coarseness abrasive materials of abrasive material of matrix surface bottom nickel layer, pass through compound abrasive
In thick, fine granularity abrasive material ratio adjust the occupy-place ratio that grinding wheel waits for different grain size abrasive material in surfacing, and then realize that abrasive material is dense
The preliminary control of degree.
During stop-off, the granularity of stop-off abrasive material is located between the granularity of the compound abrasive of upper sand for the first time, such as the embodiment
In, the granularity of coarseness abrasive material is 80/100 in compound abrasive, and the granularity of stop-off abrasive material is 120/140 or 140/170, due to mending
Be sanded material buried in coating it is shallow, in height of protrusion, size and compound abrasive that stop-off abrasive grain can be realized by this kind of mode
Coarseness abrasive material is almost the same.
In step 2), being shaken using sieve sand device realization of shaking, above sand operates sieve.
The specific embodiment of the sand device of the electroplating abrasion wheel of the present invention, as shown in Figure 1, including being arranged in the vertical direction
Multilayer screen cloth 4, multilayer screen cloth, which is fixedly connected between the mounting rod that two vertically extend, forms screening group, two peaces
Screening group tension is arranged between the two root posts of holder 2 by multigroup horizontally disposed spring 3 for dress bar.
In multilayer screen cloth, the sieve pore of adjacent two layers sieve is staggered, as shown in Fig. 2, the sieve pore of bottom screen 2a is located at
The sieve pore at middle part, upper screen 2b adjacent thereto is located at middle part side, under the horizontal reciprocating movement of screening group, under abrasive material
Terminal-velocity degree is slow, and the quantity of whereabouts is controlled, and reduces the agglomeration during sand.The aperture of the sieve pore of sieve is more than
The average grain diameter of coarseness abrasive material, sieve not play traditional sieving actoion, but playing makes abrasive material scatter whereabouts
Effect, corresponding larger sized sieve, such as 60 mesh screens may be selected in the coarseness abrasive material for being such as 80/100 for granularity.
The sand device of above-mentioned electroplating abrasion wheel is substantially the upper sand realized using following methods in electroplating abrasion wheel preparation process：
The abrasive material in sieve is set to be scattered to the working face to be formed of grinding wheel base body using the screening of multilayer screen cloth.In above example,
It is to realize that screening acts using the reciprocating motion of multilayer screen cloth in the horizontal direction, further utilizes the sieve pore of adjacent two layers sieve
It is staggered, tends under many discrete states be scattered to realize abrasive material under lower falling speed, both improved mill in this way
Expect the uniformity of distribution, and prevented floating sand, folded sand so that follow-up finishing tends to be simple or is excused from a college course whole.
Step 2) shake the sieve upper sand stage schematic diagram as shown in figure 3, electrolytic cell 1 is located between the two root posts of holder 2,
Setting nickel plate 5 and PVC holders 7 in electrolytic cell, PVC holders are used for fixed placement grinding wheel base body component 6, and abrasive material passes through horizontal reciprocating
It after the multilayer screen cloth of movement, orderly, is evenly scattered on grinding wheel base body, is during which incited somebody to action by physical absorption, chemisorption
Abrasive material is fixedly arranged on coating.
The structural schematic diagram of grinding wheel base body component 6 is as shown in figure 4, including horizontal positioned grinding wheel base body 8 and pass vertically through
The electrode of grinding wheel base body centre bore, electrode include conductive shaft 90 and the copper wire being conductively connected with conductive shaft group 91, conducting wire 92, conduction
The upper and lower ends of axis are provided with the axle cap 93 to shield accordingly, are provided with to non-electrical on the upper and lower end face of grinding wheel base body
The nylon clamping plate 10 that surfacing is protected is additionally provided with the PVC gaskets for being used to support axle cap in the respective side of nylon clamping plate
11。
In step 4), the schematic diagram for floating sand, folded sand is removed as shown in figure 5, by previous step treated grinding wheel base body group
Part 6 is mounted on the turntable 13 in abrasive material collecting tank 12, and steel brush frame 14 is installed in abrasive material collecting tank, is being removed floating sand, is being folded
When sand operation, the steel wire bristle 15 on steel brush frame is contacted with the abrasive material layer surface of grinding wheel, in grinding wheel rotation process, by steel wire
Collision, friction with abrasive material can facilitate removing to float sand, folded sand.
In the other embodiment of the electric wheel sand device of the present invention, realize screening group in water using other modes
It moves reciprocatingly on square face, such as uses motor drive mode.The sieve pore of adjacent two layers sieve is not limited to be staggered, and uses
Although conventional screen is not so good as the multilayer screen cloth being staggered, mill in falling speed, the control effect of abrasive grain whereabouts quantitative aspects
Expect that the uniformity of control, the abrasive material distribution of concentration is still significantly better than existing conventional sand buring method and knockout method.
In the embodiment 2 of the preparation method of the electric wheel of the present invention, the method that can refer to embodiment 1 prepares abrasive material
Intergranular is away from the slot milling grinding wheel for being 50% for 1 times of average grit diameter, embedment rate, when specifically preparing, in step 1), can be by granularity
80/100 with granularity be 170/200 diamond abrasive with mass ratio 5:1 mixing.In step 2), control type of abrasive grain coating is 0.8A/
dm2, the upper sand period is 5min.
In the other embodiment of the preparation method of the electric wheel of the present invention, the ratio of compound abrasive can be according to target
Abrasive concentration is adjusted, and when target abrasive concentration is high, reduces the ratio of fine granularity abrasive material；When target abrasive concentration is low,
Increase the ratio of fine granularity abrasive material；Realize that abrasive concentration is controllable by subsequent stop-off process again, i.e. abrasive grain spacing is opposite
It is continuously adjusted between 0.2 times to 2 times of average grit diameter.Treatment conditions when upper sand current density, thickening processing
It is adaptively adjusted according to existing regulative mode.
The abrasive material distribution of electroplating abrasion wheel obtained by above-described embodiment has good uniformity, using single abrasive material as the center of circle, together
Abrasive grain number on radius (numerical value within the scope of 2 times of average grit diameters) circle is not less than 4.
In terms of grinding wheel service life, for the grinding wheel of same specification, since the abrasive material of the grinding wheel of the present invention is evenly distributed, goes out
Sword is highly consistent, blade integrity degree is good, and grinding wheel prepared by the more conventional method of service life greatly promotes.
Claims (9)
1. a kind of sand device of electroplating abrasion wheel, which is characterized in that including holder and be fixed on holder and can make in the horizontal direction
The screening group of reciprocating motion, the screening group include vertically at least two layers of sieve for setting gradually.
2. the sand device of electroplating abrasion wheel as described in claim 1, which is characterized in that the screening group contains 4-6 layers of sieve.
3. the sand device of electroplating abrasion wheel as claimed in claim 1 or 2, which is characterized in that be provided with sieve pore on the sieve
Area, the projection of the sieve pore area of adjacent two layers sieve in the vertical direction are misaligned.
4. a kind of preparation method of electroplating abrasion wheel, which is characterized in that include the following steps：
1) sand on：The abrasive material in sieve is set to be scattered to the working face to be formed of grinding wheel base body using the screening of multilayer screen cloth；
2) plating thickening is carried out on after sand, removes and floats sand, folded sand.
5. the preparation method of electroplating abrasion wheel as claimed in claim 4, which is characterized in that in step 1), be arranged on the sieve
There is a sieve pore area, the projection of the sieve pore area of adjacent two layers sieve in the vertical direction is misaligned.
6. the preparation method of electroplating abrasion wheel as claimed in claim 4, which is characterized in that in step 1), the screening is control
Sieve is reciprocating in the horizontal direction.
7. the preparation method of electroplating abrasion wheel as claimed in claim 4, which is characterized in that in step 1), the abrasive material is mixing
Granularity abrasive material, including the coarseness abrasive material of targeted particle size abrasive grain formation and granularity are less than the fine granularity abrasive material of coarseness abrasive material.
8. the preparation method of electroplating abrasion wheel as claimed in claim 7, which is characterized in that in step 1), coarseness abrasive material and thin
The mass ratio of granularity abrasive material is (3-10)：1.
9. the preparation method of electroplating abrasion wheel as claimed in claim 4, which is characterized in that in step 2), remove and float sand, folded sand
Afterwards, as abrasive concentration is less than desired value, then use abrasive material of the granularity positioned at coarseness abrasive grain and fine granularity abrasive grain between by step
1) stop-off is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574452.9A CN108588799B (en) | 2018-06-06 | 2018-06-06 | Sand feeding device of electroplated grinding wheel and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574452.9A CN108588799B (en) | 2018-06-06 | 2018-06-06 | Sand feeding device of electroplated grinding wheel and preparation method |
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| Publication Number | Publication Date |
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| CN108588799A true CN108588799A (en) | 2018-09-28 |
| CN108588799B CN108588799B (en) | 2020-04-14 |
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| CN201810574452.9A Expired - Fee Related CN108588799B (en) | 2018-06-06 | 2018-06-06 | Sand feeding device of electroplated grinding wheel and preparation method |
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| CN (1) | CN108588799B (en) |
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| CN112536737A (en) * | 2020-12-10 | 2021-03-23 | 郑州磨料磨具磨削研究所有限公司 | Device and method for rearranging, uniformly distributing and feeding abrasive materials of superhard material electroplating grinding wheel |
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| CN109571305A (en) * | 2018-12-24 | 2019-04-05 | 重庆新腾源环保科技有限公司 | A kind of Carborundum wheel plant sand nickel plating apparatus |
| CN112536737A (en) * | 2020-12-10 | 2021-03-23 | 郑州磨料磨具磨削研究所有限公司 | Device and method for rearranging, uniformly distributing and feeding abrasive materials of superhard material electroplating grinding wheel |
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