CN105369328B - A kind of coarse grained abrasive multilayer suspension composite electroplating method and electroplanting device - Google Patents
A kind of coarse grained abrasive multilayer suspension composite electroplating method and electroplanting device Download PDFInfo
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- CN105369328B CN105369328B CN201510929007.6A CN201510929007A CN105369328B CN 105369328 B CN105369328 B CN 105369328B CN 201510929007 A CN201510929007 A CN 201510929007A CN 105369328 B CN105369328 B CN 105369328B
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Abstract
The invention discloses a kind of coarse grained abrasive multilayer suspension composite electroplating method and electroplanting devices, belong to plating grinding tool manufacturing technology field.This method includes：1) grinding wheel base body is coaxially mounted in shaft, turns the tip of the axis and be equipped with to stir the blade of electroplate liquid；2) grinding wheel base body is placed in together with blade in electroplate liquid, adjusts shaft rotating speed and be not more than 300rpm；3) plating is opened, abrasive suspension is added in electroplate liquid, uniformly reducing rotating speed to whole rotating speed at interval of the identical time is not less than 90rpm, you can.The present invention is by the way that grinding wheel base body and stirring blade are coaxially disposed, and uniformly reduce rotating speed in identical interval time, it is allowed to match from different abrasive materials, sand on abrasive material is synchronous with coating (such as nickel layer) thickening process dynamics, it realizes the abrasive concentration uniformity of multilayer abrasive material between layers, solve thes problems, such as that the abrasion of multilayer abrasive grinding wheel is inconsistent.
Description
Technical field
The present invention relates to a kind of coarse grained abrasive multilayer suspension composite electroplating methods, also relate to realize that the plating of this method fills
It puts, belongs to plating grinding tool manufacturing technology field.
Background technology
In grinding tool manufacturing process is electroplated, for the plating grinding tool of coarse granule abrasive material, usually there are two types of composite plating process,
One kind is using " sand buring method ", i.e., directly matrix plating position is embedded in abrasive material, using low current density (0.1-0.5A/
dm2), it carries out sand plating under static state, after the completion of upper sand, gently rocks the extra abrasive material of removal, then thickeied
Plating；Another kind is using " stucco method ", for flat-faced wheel, is directly placed in plating in electroplate liquid up, with sand spoon
Or diamond is spread to carry out upper sand on electroplating surface by pipette, for annulus end face or special-shaped facet wheel, then needs repeatedly to rotate
Certain angle or overturning carry out upper sand stage by stage and electroplate, and after the completion of upper sand, also need gently to rock the extra mill of emery wheel removal
Material, then carries out thickening plating.But the electroplating efficiency of sand buring method or stucco method composite plating process is low, in electroplating process
A large amount of manual operations are needed, abrasive concentration and uniformity can not be controlled accurately, be affected by human factors larger and quiet in emery wheel
Only in electroplating process, the quality of coating such as pin hole, dross are easily led to the problem of.
At present, application of the sand technology below 10 μm of grain size in the manufacture of fine granularity abrasive material electroplating abrasion wheel is more wide in suspension
It is general, though sand technology has many reports in electroplating diamond wire saw product manufacturing on 10 μm or more coarseness abrasive suspensions,
Such product is mostly using sand on individual layer abrasive suspension, and the upper sand time is short (within 10~40min), and abrasive material is effectively dense in electroplate liquid
Degree variation is small, and technology controlling and process is relatively easy.And the upper sand of multilayer abrasive material plating suspension is related to sand in multistep and operates, the upper sand time is up to
A few hours, and with the extension of electroplating time, the effective concentration of abrasive material constantly reduces in plating solution, and abrasive concentration is electroplated in coating
Consumption and the cross influence of self gravitation sedimentation cause abrasive concentration difference increase between coating and coating in emery wheel, finally lead
It causes emery wheel grinding performance in use inconsistent and scraps.
The content of the invention
The object of the present invention is to provide a kind of coarse grained abrasive multilayer suspension composite electroplating methods.
Meanwhile the present invention also provides a kind of electroplanting devices for realizing the above method.
In order to achieve the goal above, the technical solution adopted in the present invention is：
A kind of coarse grained abrasive multilayer suspension composite electroplating method, comprises the following steps：
1) grinding wheel base body is coaxially mounted in shaft, turns the tip of the axis and be equipped with to stir the blade of electroplate liquid；
2) grinding wheel base body is placed in together with blade in electroplate liquid, adjusts shaft rotating speed and be not more than 300rpm；
3) plating is opened, abrasive suspension is added in electroplate liquid, rotating speed is uniformly reduced to end at interval of the identical time
Rotating speed is not less than 90rpm, you can.
The metal materials such as iron, copper, aluminium can be used in step 1) medium plain emery wheel matrix, and shape is as shown in Figure 1, (a) is parallel in figure
Emery wheel, 1,2 represent parallel grinding wheel matrix and parallel grinding wheel coating respectively, and (b) is dish (emery) wheel, and 3,4 represent dish (emery) wheel respectively
Matrix and dish (emery) wheel coating.
Step 1) medium plain emery wheel matrix needs to do conventional pre-treatment before plating.
The formula of electroplate liquid is in step 1)：NiSO4·6H2O 350~400g/L, NiCl2·6H245~60g/L of O,
H3BO340~50g/L, 0.6~1.0g/L of saccharin, low-foam wetting agents (sodium 2-ethylhexyl sulfate) 0.10~0.20g/L；PH value 4
~4.5,45~55 DEG C of temperature.
The preferred diamond shape of the shape of blade in step 1), the setting angle of blade be with electroplate liquid liquid level in 45 degree of angles, with
Increase the agitation strength to electroplate liquid, abrasive material is made to disperse more uniformly.
The plane to be plated of step 2) medium plain emery wheel matrix is located at below the liquid level of electroplate liquid, and parallel with liquid level.
Abrasive suspension is added in electroplate liquid in 1~2min after plating starts in step 3), makes abrasive material in electroplate liquid dense
It spends for 1~10g/L.
Abrasive suspension is the aqueous suspensions of diamond or cubic boron nitride in step 3), and abrasive concentration is 0.5 in suspension
~1.5g/mL.Abrasive material uses the coarse diamond or cubic boron nitride of 10~100 μm of particle size range.
The current density of plating is 2~3A/dm in step 3)2。
Interval time is 40~80min in step 3), reduces by 5~20rpm of rotating speed every time.
The electroplanting device of coarse grained abrasive multilayer suspension composite electroplating method is used to implement, when including electroplating bath body and working
The shaft of electroplating bath body interior is placed in, the shaft is with the mounting portion for the grinding wheel base body that is coaxially loaded, at the end of shaft
End is additionally provided with to stir the blade of electroplate liquid.
The electroplating bath body preferably has the cylindrical glass coating bath of spherical bottom, and glass material can weaken coating bath to abrasive material
Suction-operated.
The preferred diamond shape of shape of the blade, the setting angle of blade is in 45 degree of angles with electroplate liquid liquid level.
Beneficial effects of the present invention：
In actual electroplating process, abrasive concentration in coating bath can when plating consumption and self gravitation are settled when factors by
It gradually reduces, causes to immerse the abrasive material in coating and generate concentration gradient, it is relatively low that abrasive concentration is just present with during emery wheel use
There is the abrasion of step-like or zigzag in the coating premature loss in region.Fig. 2 show stone layer wear-out defect schematic diagram,
Wherein 1 is working lining normal wear, and 2,3 be respectively step-like abrasion and zigzag abrasion.
The present invention allows the two to rotate coaxially, on the one hand can simplify electricity by the way that grinding wheel base body and stirring blade are coaxially disposed
On the other hand plating appts structure can control abrasive material in the rotary state and electroplate liquid of matrix simultaneously by adjusting shaft rotating speed
Dispersity makes abrasive material be uniformly distributed in coating and electroplate liquid and is in a kind of dynamic equilibrium always.Simultaneously between identical
Rotating speed is uniformly reduced every the time, is allowed to match from different abrasive materials, sand on abrasive material and coating (such as nickel layer) thickening process are moved
State is synchronous and continuous, realizes the abrasive concentration uniformity of multilayer abrasive material between layers, efficiently solves multilayer abrasive grinding wheel
It wears the problem of inconsistent, and then realizes composite electroplating processing efficient, quantifies and automatically control.
The present invention has broken the composite electroplating method that traditional coarse granule abrasive grinding wheel generally uses sand buring method or stucco method,
Or individual layer suspension composite electroplating method, a kind of coarse granule abrasive material multilayer, uniform, suspension composite electroplating method are proposed, by adopting
The composite electroplating technique stirred with stairway degression realizes coarse grained abrasive multilayer, sand on even suspension, effectively prevents different abrasive materials
Concentration offset issue between layer ensures that emery wheel in use can uniform wear.
Present invention preferably employs the cylindrical glass coating bath of spherical bottom and diamond shape blade, blade is in electroplate liquid liquid level
45 degree of angles, grinding wheel base body is in high speed rotation state simultaneously with electroplate liquid during making composite electroplating, and upper sand electric current can improve 1
~3 times, production efficiency is substantially improved.
Description of the drawings
Fig. 1 is the sectional view of different shape grinding wheel base body；
Fig. 2 is stone layer wear-out defect schematic diagram；
Fig. 3 is the structure diagram of electroplanting device in embodiment.
Specific embodiment
Following embodiments are only described in further detail the present invention, but do not form any limitation of the invention.
Embodiment 1
Electroplanting device, as shown in figure 3, the electroplating bath body 10 including being used to contain electroplate liquid 9, electroplating bath body 10 is ball
The cylindrical glass coating bath of shape bottom surface is linked with anode 6 on side wall；Electroplanting device further includes is placed in electroplating bath sheet at work
Shaft 7 inside body 10, with the mounting portion for the grinding wheel base body 8 that is coaxially loaded, end is additionally provided with one group (4 width) shaft 7
For stirring the blade 5 of electroplate liquid 9, blade 5 is diamond shape, and setting angle is in 45 degree of angles with the liquid level of electrolyte 9.
Coarse grained abrasive multilayer suspension composite electroplating method, comprises the following steps：
1) the good parallel grinding wheel iron-based body 8 of pre-treatment is coaxially mounted in shaft 7, then it is placed in electricity together with blade 5
In plating solution 9 (charged enter slot), the plane to be plated of parallel grinding wheel matrix 8 is made to be located at below the liquid level of electroplate liquid 9, and is put down with liquid level
Row；It is 180rpm to adjust shaft rotating speed；
The formula of electroplate liquid 9 is：NiSO4·6H2O 350g/L, NiCl2·6H2O 45g/L, H3BO340g/L, saccharin
0.8g/L, low-foam wetting agents (sodium 2-ethylhexyl sulfate) 0.10g/L；PH value 4, temperature 50 C；
2) plating is opened, adjusting current density is 2.0A/dm2, by abrasive suspension (Buddha's warrior attendant in 1min after plating starts
Stone concentration 0.5g/mL, 30 μm of granularity) it adds in electroplate liquid 9, it is 2g/L to make abrasive concentration in electroplate liquid, is carried out in suspension plating
Sand；
Rotating speed 5rpm is uniformly reduced at interval of 40min, until whole rotating speed is 160rpm, electroplating abrasion wheel is taken out, measures plating thickness
It spends for 0.10mm；Its even wearing of experience wear experimental test.
Embodiment 2
Coarse grained abrasive multilayer suspension composite electroplating method, comprises the following steps：
1) the good dish (emery) wheel Copper substrate of pre-treatment is coaxially mounted in shaft (electroplanting device is with embodiment 1), then will
It is placed in electroplate liquid together with blade (charged enter slot), make dish (emery) wheel matrix plane to be plated be located at the liquid level of electroplate liquid with
Under, and it is parallel with liquid level；It is 210rpm to adjust shaft rotating speed；
The formula of electroplate liquid is：NiSO4·6H2O 370g/L, NiCl2·6H2O 50g/L, H3BO350g/L, saccharin
0.6g/L, low-foam wetting agents (sodium 2-ethylhexyl sulfate) 0.15g/L；PH value 4.5, temperature 45 C；
2) plating is opened, adjusting current density is 2.5A/dm2, by abrasive suspension (gold in 1.5min after plating starts
Hard rock concentration 1g/mL, 50 μm of granularity) it adds in electroplate liquid, it is 5g/L to make abrasive concentration in electroplate liquid, is carried out in suspension plating
Sand；
Rotating speed 10rpm is uniformly reduced at interval of 50min, until whole rotating speed is 130rpm, electroplating abrasion wheel is taken out, measures plating thickness
It spends for 0.30mm；Its even wearing of experience wear experimental test.
Embodiment 3
Coarse grained abrasive multilayer suspension composite electroplating method, comprises the following steps：
1) the good parallel grinding wheel alloy matrix aluminum of pre-treatment is coaxially mounted in shaft (electroplanting device is with embodiment 1),
It is placed in electroplate liquid together with blade to (charged enter slot) again, the plane to be plated of parallel grinding wheel matrix is made to be located at the liquid level of electroplate liquid
Hereinafter, it is and parallel with liquid level；It is 260rpm to adjust shaft rotating speed；
The formula of electroplate liquid is：NiSO4·6H2O 400g/L, NiCl2·6H2O 60g/L, H3BO345g/L, saccharin
1.0g/L, low-foam wetting agents (sodium 2-ethylhexyl sulfate) 0.20g/L；PH value 4.5,55 DEG C of temperature；
2) plating is opened, adjusting current density is 3.0A/dm2, by abrasive suspension (Buddha's warrior attendant in 2min after plating starts
Stone concentration 1.5g/mL, 100 μm of granularity) it adds in electroplate liquid, it is 10g/L to make abrasive concentration in electroplate liquid, is carried out in suspension plating
Sand；
Rotating speed 20rpm is uniformly reduced at interval of 80min, until whole rotating speed is 100rpm, electroplating abrasion wheel is taken out, measures plating thickness
It spends for 0.50mm；Its even wearing of experience wear experimental test.
In other embodiments of the invention, blade can be set multigroup such as 3 groups or 5 groups, and iron, copper etc. can be used in grinding wheel base body
Material, any value in 40~80min can also be used in interval time, unrestricted in claims.
Claims (6)
- A kind of 1. coarse grained abrasive multilayer suspension composite electroplating method, it is characterised in that：Comprise the following steps：1）Grinding wheel base body is coaxially mounted in shaft, turns the tip of the axis and is equipped with to stir the blade of electroplate liquid；2）Grinding wheel base body is placed in together with blade in electroplate liquid, shaft rotating speed is adjusted and is not more than 300rpm；3）Plating is opened, abrasive suspension is added in electroplate liquid, rotating speed is uniformly reduced to whole rotating speed at interval of the identical time Not less than 90rpm, you can.
- 2. according to the method described in claim 1, it is characterized in that：Step 1）The shape of middle blade be rectangle, the peace of blade It is vertical with electroplate liquid liquid level to fill angle.
- 3. according to the method described in claim 1, it is characterized in that：Step 3）By abrasive suspension in 1 ~ 2min after middle plating starts Liquid is added in electroplate liquid, and it is 1 ~ 10g/L to make abrasive concentration in electroplate liquid.
- 4. according to the method described in claim 3, it is characterized in that：The abrasive material for 10 ~ 100 μm of grain size diamond or cube Boron nitride.
- 5. according to the method described in claim 1, it is characterized in that：Step 3）The current density of middle plating is 1 ~ 3A/dm2。
- 6. according to the method described in claim 1, it is characterized in that：Step 3）Middle interval time is 40 ~ 80min, is reduced every time 5 ~ 20rpm of rotating speed.
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| CN105904351B (en) * | 2016-04-25 | 2018-02-23 | 珠海大象磨料磨具有限公司 | A kind of diamond napping piece and preparation method thereof |
| CN109267140B (en) * | 2018-10-30 | 2019-07-16 | 郑州磨料磨具磨削研究所有限公司 | A method of it rotating sand device and spiral grinding wheel base body is electroplated using its |
| CN110528055A (en) * | 2019-09-12 | 2019-12-03 | 昆山品钰康机电设备有限公司 | A kind of agitating device of the grinding wheel plating processing for chip cutting |
| CN115874246A (en) * | 2022-12-30 | 2023-03-31 | 长沙岱勒新材料科技股份有限公司 | Sand feeding method for preparing annular diamond wire saw and annular diamond wire saw |
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| CN103567909B (en) * | 2012-07-24 | 2016-03-09 | 沈阳中科超硬磨具磨削研究所 | Sand fixture on a kind of mill leading screw electroplating abrasion wheel |
| CN103388169B (en) * | 2013-07-23 | 2016-06-15 | 苏州赛尔科技有限公司 | A kind of upper sand method of electroplating abrasion wheel |
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