CN101195208A - Plating diamond tool with glass hard high-wearing feature and production method thereof - Google Patents
Plating diamond tool with glass hard high-wearing feature and production method thereof Download PDFInfo
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- CN101195208A CN101195208A CNA2006101284082A CN200610128408A CN101195208A CN 101195208 A CN101195208 A CN 101195208A CN A2006101284082 A CNA2006101284082 A CN A2006101284082A CN 200610128408 A CN200610128408 A CN 200610128408A CN 101195208 A CN101195208 A CN 101195208A
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Abstract
Disclosed is an electroplating diamond tool with high hardness and high wear resistance. The invention is formed by covering a coating of nano nickel-cobalt material on a green body of the diamond tool. The method of the tool comprises preparing electroplating liquid, preparing before electroplating of the green body of the diamond tool, and electroplating the green body of the diamond tool after the preparation. When electroplating the green body of the diamond tool after the preparation, the green body of the diamond tool is electroplated with the nano nickel-cobalt material by the utilization of the method of impulse electroplating. The electroplating liquid of the invention is formed by components of nickel sulfate, nickel chloride, cobalt sulfate, grain refiner, dodecyl sodium sulfate, boracic acid and the like. The tool has high hardness and high wear resistance, and thereby the service life is long. Further, the invention has the advantages of short manufacture period.
Description
Technical field
The invention belongs to plating diamond tool, relate in particular to a kind of plating diamond tool with high rigidity and high-wearing feature; The manufacture method that also relates to this instrument simultaneously.
Background technology
Diamond has high hardness, the hard and crisp material of making of diamond of the suitable processing of instrument, and not only to make temperature low and adopt electroplating technology to prepare plating diamond tool, avoided the high-temperature damage diamond, increased the service life of this instrument; Tool processes efficient and crudy have also been improved; At present, plating diamond tool is used widely at industrial circles such as machinery, electronics, building, probing, optical glass processing.The way of direct current electrode position nickel cobalt (alloy) is mainly adopted in the preparation of plating diamond tool at present, nickel cobalt (alloy) has hardness and the toughness and with diamond binding ability better more higher than pure nickel, but the too high levels of its cobalt that requires, only reaching at about 30% o'clock, could guarantee higher hardness and wearability, and the cobalt price is more expensive.In addition, if after cobalt content surpassed 30%, the coating internal stress was very big, be easy to cause that be full of cracks and peeling come off in the coating.Because the nickel-cobalt alloy plating hardness range is narrower, when the instrument of making was used for processing admant material, superhard stone material, glass and strong abrasiveness rock stratum, it is not enough that its wearability often seems.Moreover it is long to adopt dc electrodeposition to prepare the electroplating time of instrument needs at present, therefore elongates manufacturing cycle.
Summary of the invention
The purpose of this invention is to provide a kind of have high rigidity and high-wearing feature, what long service life, manufacturing cycle lacked is the plating diamond tool of carcass material with the nanometer nickel-cobalt alloy; The manufacture method of this instrument is provided simultaneously.
The present invention seeks to be achieved through the following technical solutions: this plating diamond tool with high-hardness, wearable, it is that nanometer nickel-cobalt material coating is arranged on the diamond tool base substrate.
Make this method: comprise the preparation electroplate liquid, electroplate to the plating pre-treatment of diamond tool base substrate with to handling back diamond tool base substrate with plating diamond tool of high-hardness, wearable; When handling back diamond tool base substrate and electroplate, be to adopt pulse plating method on the diamond tool base substrate, to electroplate the nanometer nickel-cobalt material, its electroplate liquid comprises that following component makes:
Nickelous sulfate 200-300 grams per liter, nickel chloride 25-40 grams per liter, cobaltous sulfate 2-12 grams per liter, grain refiner 2-6 grams per liter, lauryl sodium sulfate 0.005 grams per liter, boric acid 30-30 grams per liter.
When electroplating handling back diamond tool base substrate, the Pulse Electric parameter of employing is: peak current density 100～230A/dm
2, electric current leads to ETAD expected time of arrival and departure 1-5ms, electric current turn-off time 5-15ms.
Described refinement additive is asccharin or cumarin.
During plating, the temperature of electroplate liquid is 32-50 ℃.
Described electrochemical degreasing liquid comprises that following component makes:
NaOH 35～45g/l
Na
2CO
3 26～35g/l
Na
3PO
425～29g/l or 31～35g/l
Na
2SiO
3 3～7g/l；
Workpiece behind electrochemical degreasing is used 50% H again
2SO
4Solution is done electrochemical activation, then is equal to or less than 5% H with concentration
2SO
4Solution carries out weak acid and corrodes.
Adopt pulse plating method after plating the bottom of nanometer nickel-cobalt material on the diamond tool base substrate, adopt sand on the dc electrodeposition again, then adopt the pulse current deposition to add thickness coating; The galvanic current density that adopts is 1.1～2.2A/dm during last sand
2The Pulse Electric parameter that adopts the pulse current deposition to add thickness coating is: peak current density is 90～230A/dm
2, electric current leads to ETAD expected time of arrival and departure 1-5ms, electric current turn-off time 5-15ms.
Because nano material crystal grain is tiny, number of grain boundaries significantly increases, intensity, toughness and the superplasticity of material are greatly improved, and the nickelous sulfate in the plating bath of the present invention, nickel chloride, cobaltous sulfate have all been selected appropriate consumption for use, have added grain refiner in the electroplate liquid again, cooperate the pulse current means of utilizing again, can obtain the nanocrystal material of nickel cobalt (alloy), the diamond tool that these nanocrystal materials are made has very high hardness and high-wearing feature, thereby has prolonged the service life of instrument; Again because, therefore Pulse Electric is coated with the current density more much bigger than direct current electrode position, so it is than direct current electrode position efficient height, has shortened the manufacturing cycle of instrument; Manufacture method of the present invention in addition is applicable to the carcass material of hardness range broad, so utilize this method can produce the instrument that can process the different hardness material.
The specific embodiment
Embodiment 1: the plating diamond tool with high-hardness, wearable in the present embodiment, it is that nanometer nickel-cobalt material coating is arranged on the diamond tool base substrate.
The method that this instrument is made is as follows: the plating pre-treatment of (1) diamond tool base substrate:
A, elder generation carry out machine finish to the matsurface of diamond tool base substrate, then soak 1 minute with strong acid, and water is rinsed instrument well again;
B, be: NaOH 35g/l, Na with component
2CO
326g/l, Na
3PO
425g/l, Na
2SiO
3The degreasing fluid that 3g/l is mixed with carries out electrochemical degreasing to the instrument base substrate after above-mentioned processing; Then use 50% H
2SO
4Solution is done electrochemical activation, equals 5% H again with concentration
2SO
4Solution carries out weak acid and corrodes.
(2) preparation of electroplate liquid: electroplate liquid forms by following set of dispense system, nickelous sulfate 200 grams per liters, nickel chloride 25 grams per liters, cobaltous sulfate 2 grams per liters, grain refiner 2 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 30 grams per liters and an amount of distilled water; Grain refiner adopts asccharin.
(3) electroplate: diamond tool is after treatment put into coating bath, and electrode spacing is 50mm, S
Cloudy: S
Sun1: 8, anode adopted the nickel plate; With the electroplate liquid of above-mentioned preparation, adopt pulse current to electroplate, the Pulse Electric parameter of employing is: peak current density is 90A/dm
2, electric current service time is that 1ms, electric current turn-off time are 25ms.
Bath temperature keeps 30-32 ℃ in the electroplating process.
Embodiment 2: the plating diamond tool in the present embodiment also is that nanometer nickel-cobalt material coating is arranged on the diamond tool base substrate.
When this instrument is made, in step (1):
The matsurface of a, diamond tool base substrate carries out soaking 2 minutes with strong acid after the machine finish, and water is rinsed instrument well again;
B, be: NaOH 45g/l, Na with component
2CO
335g/l, Na
3PO
429g/l, Na
2SiO
3The degreasing fluid that 7g/l is mixed with carries out electrochemical degreasing to the instrument base substrate after above-mentioned processing; Then use 50% H
2SO
4Solution is done electrochemical activation, is 4% H again with concentration
2SO
4Solution carries out weak acid and corrodes.
(2) preparation of electroplate liquid: electroplate liquid forms by following set of dispense system, nickelous sulfate 300 grams per liters, nickel chloride 40 grams per liters, cobaltous sulfate 12 grams per liters, grain refiner 6 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 40 grams per liters and an amount of distilled water; Grain refiner adopts cumarin.
In the plating of step (3): electrode spacing is 100mm, S
Cloudy: S
Sun1: 16; With the electroplate liquid of above-mentioned preparation, adopt pulse current to electroplate, the Pulse Electric parameter of employing is: peak current density is 230A/dm
2, electric current service time is that 5ms, electric current turn-off time are 15ms;
Bath temperature keeps 49-50 ℃ in the electroplating process.Other are all identical with embodiment 1.
Embodiment 3: in the present embodiment, the manufacture method with diamond tool of nanometer nickel-cobalt material coating is:
(1) the plating pre-treatment of diamond tool base substrate:
A, elder generation carry out machine finish to the matsurface of diamond tool, then soak 3 minutes with strong acid, and water is rinsed instrument well again;
B, be: NaOH 40g/l, Na with component
2CO
330g/l, Na
3PO
431g/l, Na
2SiO
3The degreasing fluid that 4g/l is mixed with carries out electrochemical degreasing to the instrument base substrate after above-mentioned processing; Then use 50% H
2SO
4Solution is done electrochemical activation, equals 3.5% H again with concentration
2SO
4Solution carries out weak acid and corrodes.
(2) preparation of electroplate liquid: electroplate liquid forms by following set of dispense system, nickelous sulfate 220 grams per liters, nickel chloride 28 grams per liters, cobaltous sulfate 3 grams per liters, cumarin 3 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 32 grams per liters and an amount of distilled water;
(3) electroplate: diamond tool is after treatment put into coating bath, and electrode spacing is 70mm, S
Cloudy: S
Sun1: 9, anode nickel plate with the electroplate liquid of above-mentioned preparation, adopted pulse current to electroplate, and the Pulse Electric parameter of employing is: peak current density is 110A/dm
2, electric current service time is that 2ms, electric current turn-off time are 7ms;
Bath temperature keeps 33-35 ℃ in the electroplating process.
Embodiment 4: the plating diamond tool in the present embodiment also has nanometer nickel-cobalt material coating on the diamond tool base substrate.
When this instrument is made, in step (1):
The degreasing fluid component that is mixed with is: NaOH 43g/l, Na
2CO
328g/l, Na
3PO
435g/l, Na
2SiO
35g/l equals 4.5% H again with concentration behind electrochemical activation
2SO
4Solution carries out weak acid and corrodes.
(2) preparation of electroplate liquid: electroplate liquid forms by following set of dispense system, nickelous sulfate 230 grams per liters, nickel chloride 38 grams per liters, cobaltous sulfate 8 grams per liters, asccharin 5 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 38 grams per liters and an amount of distilled water;
(3) electroplate: diamond tool is after treatment put into coating bath, and electrode spacing is 75mm, S
Cloudy: S
Sun1: 11, with the electroplate liquid of above-mentioned preparation, adopt pulse current to electroplate, peak current density is 120A/dm
2, electric current service time is that 3ms, electric current turn-off time are 10ms;
Bath temperature keeps 36-38 ℃ in the electroplating process.
Other are all identical with embodiment 1.
Embodiment 5: the plating diamond tool in the present embodiment is the nanometer nickel-cobalt material for the coating on the diamond tool base substrate also.
When this instrument is made, in the step (1):
The degreasing fluid component that is mixed with is: NaOH 37g/l, Na
2CO
332g/l, Na
3PO
427g/l, Na
2SiO
36g/l equals 3% H2SO4 solution with concentration again and carries out weak acid and corrode behind electrochemical activation.
(2) preparation of electroplate liquid: electroplate liquid forms by following set of dispense system, nickelous sulfate 250 grams per liters, nickel chloride 30 grams per liters, cobaltous sulfate 10 grams per liters, cumarin 4 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 35 grams per liters and an amount of distilled water;
In step (3): electrode spacing is 78mm, S
Cloudy: S
Sun1: 13; Anode adopts the nickel plate; With the electroplate liquid of above-mentioned preparation, when adopting pulse current to electroplate earlier, the Pulse Electric parameter of employing is: peak current density is 150A/dm
2, electric current service time is that 4ms, electric current turn-off time are 12ms;
After 28 minutes, adopt sand on the dc electrodeposition, the galvanic current density that adopts is 1.1A/dm during last sand
2, the last sand time is 40 minutes; Adopt the pulse current deposition to add thickness coating again, the Pulse Electric parameter is: peak current density 100A/dm
2Electric current service time is that 1ms, electric current turn-off time are 5ms; The thickening time is 150 minutes.
Bath temperature keeps 39-41 ℃ in the electroplating process.
Embodiment 6: the plating diamond tool with high-hardness, wearable in the present embodiment is that nanometer nickel-cobalt material coating is arranged on diamond tool.
The method that this instrument is made is as follows: the plating pre-treatment of (1) diamond tool base substrate:
A, elder generation carry out machine finish to the matsurface of diamond tool base substrate, then soak 4 minutes with strong acid, and water is rinsed instrument well again;
B, be: NaOH 39g/l, Na with component
2CO
333g/l, Na
3PO
433g/l, Na
2SiO
3The degreasing fluid that 3g/l is mixed with carries out electrochemical degreasing to the instrument base substrate after above-mentioned processing; Then use 50% H
2SO
4Solution is done electrochemical activation, equals 5% H again with concentration
2SO
4Solution carries out weak acid and corrodes.
(2) preparation of electroplate liquid: electroplate liquid is pressed following set of dispense system: nickelous sulfate 280 grams per liters, nickel chloride 35 grams per liters, cobaltous sulfate 5 grams per liters, asccharin 4 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 39 grams per liters and an amount of distilled water;
(3) electroplate: diamond tool is after treatment put into coating bath, and electrode spacing is 100mm, S the moon: S sun 1: 16; Anode nickel plate; With the electroplate liquid of above-mentioned preparation, adopt pulse current to electroplate, the Pulse Electric parameter of employing is: peak current density is 180A/dm
2, electric current service time is that 3ms, electric current turn-off time are 14ms; Bath temperature keeps 43 ℃ in the electroplating process.
Embodiment 7: have in the present embodiment in the manufacture method of diamond tool of nanometer nickel-cobalt material coating, the electroplate liquid component of employing is: nickelous sulfate 290 grams per liters, nickel chloride 29 grams per liters, cobaltous sulfate 9 grams per liters, asccharin 5 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 37 grams per liters and an amount of distilled water;
During plating, electrode spacing is 85mm, S
Cloudy: S
Sun1: 12; The pulse electrical quantity is when plating the bottom of nanometer nickel-cobalt material on diamond tool: peak current density is 200A/dm
2, electric current service time is that 5ms, electric current turn-off time are 9ms; On the dc electrodeposition during sand the galvanic current density that adopts be 2.2A/dm
2, the last sand time is 58 minutes, when adding thickness coating with the pulse current deposition, and peak current density 230A/dm
2, electric current service time is that 5ms, electric current turn-off time are 15ms; , the thickening time is 110 minutes.Bath temperature keeps 46-47 ℃
Other processing methods are all identical with embodiment 1 with process conditions.
Embodiment 8: have in the present embodiment in the manufacture method of diamond tool of nanometer nickel-cobalt material coating, the electroplate liquid component of employing is: nickelous sulfate 240 grams per liters, nickel chloride 32 grams per liters, cobaltous sulfate 7 grams per liters, cumarin 2 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 33 grams per liters and an amount of distilled water;
When plating the bottom of nanometer nickel-cobalt material on diamond tool, the Pulse Electric parameter is: peak current density is 210A/dm
2, electric current service time is that 5ms, electric current turn-off time are 6ms; Through 18 minutes; On the dc electrodeposition during sand the galvanic current density that adopts be 2A/dm
2, the last sand time is 50 minutes; When adding thickness coating with the pulse current deposition, peak current density 130A/dm
2, electric current service time is that 2.5ms, electric current turn-off time are 11ms; The thickening time is 110 minutes; Bath temperature keeps 44-45 ℃; Other are all identical with embodiment 5.
Embodiment 9: have in the present embodiment in the manufacture method of diamond tool of nanometer nickel-cobalt material coating, the electroplate liquid component of employing is: nickelous sulfate 260 grams per liters, nickel chloride 34 grams per liters, cobaltous sulfate 11 grams per liters, coumarin 6 grams per liter, lauryl sodium sulfate 0.005 grams per liter, boric acid 36 grams per liters and an amount of distilled water;
The pulse electrical quantity is when plating the nanometer nickel-cobalt material on diamond tool: peak current density is 220A/dm
2, electric current service time is that 3.5ms, electric current turn-off time are 13ms; Other are all identical with embodiment 2.
Embodiment 10: the plating diamond tool with high-hardness, wearable in the present embodiment is that nanometer nickel-cobalt material coating is arranged on diamond tool.
When this instrument was made, electroplate liquid was by following set of dispense system, nickelous sulfate 270 grams per liters, nickel chloride 31 grams per liters, cobaltous sulfate 6 grams per liters, cumarin 4 grams per liters, lauryl sodium sulfate 0.005 grams per liter, boric acid 34 grams per liters and an amount of distilled water;
In the plating of step (3): electrode spacing is 100mm, S
Cloudy: S
Sun1: 16; Anode nickel plate with the electroplate liquid of above-mentioned preparation, adopts pulse current to electroplate earlier, and the Pulse Electric parameter of employing is: peak current density is 160A/dm
2, electric current service time is that 4.5ms, electric current turn-off time are 8ms; After 21 minutes, with sand on the dc electrodeposition, the galvanic current density that adopts is 1.5A/dm during last sand the diamond tool base substrate that plates nanometer nickel-cobalt material bottom
2, the last sand time is 48 minutes; Adopt the pulse current deposition to add thickness coating again, the Pulse Electric parameter is: peak current density 90A/dm
2Electric current service time is that 3ms, electric current turn-off time are 11ms; The thickening time is 110 minutes.
Bath temperature keeps 32-34 ℃ in the electroplating process.Other are all identical with embodiment 3.
Claims (7)
1. plating diamond tool with high-hardness, wearable, it is characterized in that: it is that nanometer nickel-cobalt material coating is arranged on the diamond tool base substrate.
2. make the method with plating diamond tool of high-hardness, wearable as claimed in claim 1: comprise the preparation electroplate liquid, electroplate to the plating pre-treatment of diamond tool base substrate with to handling back diamond tool base substrate; It is characterized in that: when handling back diamond tool base substrate and electroplate, be to adopt pulse plating method to electroplate the nanometer nickel-cobalt material on the diamond tool base substrate, its electroplate liquid comprises that following component makes:
Nickelous sulfate 200-300 grams per liter, nickel chloride 25-40 grams per liter, cobaltous sulfate 2-12 grams per liter, grain refiner 2-6 grams per liter, lauryl sodium sulfate 0.005 grams per liter, boric acid 30-30 grams per liter.
3. method according to claim 2 is characterized in that: when electroplating handling back diamond tool base substrate, the Pulse Electric parameter of employing is: peak current density 100～230A/dm
2
Electric current leads to ETAD expected time of arrival and departure 1-5ms,
Electric current turn-off time 5-15ms.
4. according to claim 2 or 3 described methods, it is characterized in that: described refinement additive is asccharin or cumarin.
5. method according to claim 4 is characterized in that: during plating, the temperature of electroplate liquid is 32-50 ℃.
6. method according to claim 5 is characterized in that: described electrochemical degreasing liquid comprises that following component makes: NaOH 35～45g/l
Na
2CO
3 26～35g/l
Na
3PO
425～29g/l or 31～35g/l
Na
2SiO
3 3～7g/l
Workpiece behind electrochemical degreasing is used 50% H again
2SO
4Solution is done electrochemical activation, then is equal to or less than 5% H with concentration
2SO
4Solution carries out weak acid and corrodes.
7. method according to claim 5 is characterized in that: adopt pulse plating method after plating the bottom of nanometer nickel-cobalt material on the diamond tool base substrate, adopt sand on the dc electrodeposition again, then adopt the pulse current deposition to add thickness coating; The galvanic current density that adopts is 1.1～2.2A/dm during last sand
2The Pulse Electric parameter that adopts the pulse current deposition to add thickness coating is: peak current density 90～230A/dm
2
Electric current leads to ETAD expected time of arrival and departure 1-5ms,
Electric current turn-off time 5-15ms.
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| CN2006101284082A CN101195208B (en) | 2006-12-18 | 2006-12-18 | Production method of plating diamond tool with glass hard high-wearing feature |
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|---|---|---|---|
| CN2006101284082A CN101195208B (en) | 2006-12-18 | 2006-12-18 | Production method of plating diamond tool with glass hard high-wearing feature |
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| CN101195208B CN101195208B (en) | 2010-08-18 |
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| CN101333675B (en) * | 2008-08-06 | 2011-08-31 | 湖北地大金石地质工具有限公司 | Nanometer composite electroplating diamond tools |
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| CN105063688A (en) * | 2015-09-22 | 2015-11-18 | 太仓市金鹿电镀有限公司 | Nickel-cobalt alloy electroplating technique |
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| CN106947961A (en) * | 2017-03-23 | 2017-07-14 | 南京三超新材料股份有限公司 | The processing method of nickel plating diamond surface electrocorrosion-resisting |
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| CN101195208B (en) | 2010-08-18 |
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