CN105908243A - Diamond wire production method - Google Patents
Diamond wire production method Download PDFInfo
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- CN105908243A CN105908243A CN201610458082.3A CN201610458082A CN105908243A CN 105908243 A CN105908243 A CN 105908243A CN 201610458082 A CN201610458082 A CN 201610458082A CN 105908243 A CN105908243 A CN 105908243A
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- sand cylinder
- wire
- upper sand
- magnetic field
- nickel
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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
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
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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
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
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- C25D5/006—
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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
- C25D7/06—Wires; Strips; Foils
- C25D7/0607—Wires
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Electroplating Methods And Accessories (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention relates to a diamond wire production method. An adopted production device comprises an upper sand cylinder, and a steel wire suitable for passing through a central axis of the upper sand cylinder; the steel wire represents a negative pole; and a rotating magnetic field generation device is arranged at the lower end of the upper sand cylinder. The production method comprises the following steps: (A) the surface of the steel wire is treated; (B) plating liquid is prepared; (C) electroplating liquid is put in an upper sand groove, and is input into the upper sand cylinder from the upper sand groove; and a direct-current anode is connected to a nickel block in the upper sand cylinder; and (D) the steel wire is inserted in from the center of the lower end of the upper sand cylinder, and is inserted out from the center of the upper end of the upper sand cylinder; the steel wire in an inserting state is connected with a direct-current cathode; meanwhile, the rotating magnetic field generation device generates a magnetic field rotating around the central axis of the upper sand cylinder; and the plating liquid in the upper sand cylinder is cut by a magnetic wire, so that radial current is generated in the plating liquid, and diamond particles treated by positive ions and nickel ions are both combined on the steel wire.
Description
Technical field
The present invention relates to the technical field of diamond wire, the production method of a kind of diamond wire.
Background technology
Hard brittle material such as silicon crystal, sapphire, quartz crystal materials etc. have obtained high speed development in recent years, and the technique cutting these materials mainly has inside and outside circle cutting and saw blade cutting etc., due to the advantage of saw blade cutting: efficiently, low cost, narrow joint-cutting, pollute the little cutting method that the most substantially instead of other.And being cut with of diamond wire is significantly better than abrasive wire sawing in saw blade cutting, the cutting efficiency of diamond wire is 3 times of abrasive wire sawing, and joint-cutting is less, and particularly silicon chip cutting, the silicon chip luminous energy conversion ratio of diamond wire saw is higher than the silicon chip of abrasive wire sawing.
The conventional production process of diamond wire is to use knockout method and sand buring method in the market, its manufacture method is to be released metal bare wire by unwrapping wire human relations, thicken through oil removing, paint removal, nickel preplating, upper sand, nickel plating, clean, dry, the operation such as take-up, and the difference line of knockout method and sand buring method knockout method when moving horizontally is to be sprinkling upon by diadust plating solution on the line of movement above line equably, and sand buring method is to be passed in diadust from plating solution by the bare wire of movement.The drawback of both approaches is that speed is slow, and diamond particles receives the impact of resistance in deadweight and moving process, all can not be evenly distributed on wire, thus affect cutting effect.
Summary of the invention
It is simple that the technical problem to be solved in the present invention is to provide a kind of process, easy to operate, diamond particles is rapid precipitation on wire, and deposition uniformity is good, settled density can regulate and control as required, and the process units of the diamond wire that electrodeposited coating is high to the hold of diamond particles produces the method for diamond wire.
In order to solve above-mentioned technical problem, the invention provides the process units of a kind of diamond wire, it includes sand cylinder, the nickel block in positive pole being fixed on this on sand cylinder inwall and be suitable to navigate within the wire of the central shaft of sand cylinder on this, this wire is negative pole, the upper port of neighbouring described upper sand cylinder, or the bottom of upper sand cylinder, or the periphery of described upper sand cylinder is provided with generation device of rotating magnetic field, this generation device of rotating magnetic field is suitable to generate the magnetic field that the central shaft of sand cylinder rotates on this, during this magnetic field rotating, the magnetic line of force is suitable to cut the plating solution in sand cylinder, make plating solution produces radial current and makes the diamond particles through treated cation together be combined on described wire with nickel ion.
As a kind of embodiment, described generation device of rotating magnetic field includes: the multipair magnetic piece of the same circumference radial symmetric distribution being located on a runing rest, and the center of circle of described circumference is on described on the central shaft of sand cylinder.The magnetic pole of the abutting end of a pair magnetic piece of radial symmetric is identical, and the magnetic pole of the medial extremity of adjacent magnetic piece is contrary.Magnetic piece is permanent magnet or electric magnet.
As a kind of optimal enforcement mode, outer cylinder body that described upper sand cylinder includes non-metallic material, the netted cylinder of bilayer being sheathed in this outer cylinder body, described nickel block is fixed in the barrel of this double-deck netted cylinder, and on this, sand cylinder is vertically arranged.Nickel block is suitable to discharge nickel ion in electroplating process, uses double-deck netted cylinder to place nickel block, can facilitate the replacing of nickel block.As preferred scheme, nickel block include along upper sand cylinder central shaft uniformly, level with the polylith of circle distribution, nickel block can also be the nickel circle being horizontally fixed in outer cylinder body, this nickel circle and the described upper concentricity axle of sand cylinder.The present invention arranges double-deck netted cylinder in outer cylinder body, can facilitate assembling and the periodic replacement of nickel block；As further preferred scheme, the netted cylinder of described bilayer uses wire netting to make, preferably titanium net；During use, only this wire netting need to be connected direct-flow positive pole, can make each nickel block is positive pole, facilitates assembling；Meanwhile, wire netting is difficult to armoured magnetic field, and the nickel ion that ionization can be made to go out is uniformly distributed around wire.
The inner side end of described magnetic piece is the arc surface being suitable to coordinate with the outer wall of described upper sand cylinder, so that the magnetic line of force of magnetic piece end is uniformly distributed along barrel, and the cross section of the medial extremity of this magnetic piece is horn-like, to expand the area of magnetic piece end, improve the area coverage of the magnetic line of force, and then improve electroplating effect.
The lower port of described upper sand cylinder is sealedly connected with base plate, the center of this base plate is provided with the central through hole being suitable to make described wire walk, the upper sand launder being arranged right below for collecting and store electroplate liquid of described upper sand cylinder, on this, the electroplate liquid in sand launder inputs described upper sand cylinder by pump, so that electroplate liquid recycles.
Applying the production method of the diamond wire of described process units, it comprises the steps:
A, the surface of wire process；
B, preparation plating solution；
C, electroplate liquid is put in upper sand launder, and by electroplate liquid by the upper sand cylinder of upper sand launder input, then on upper sand cylinder in nickel block on access direct-flow positive pole；
D, wire is made to penetrate from the lower center of upper sand cylinder, pass from upper end center again, and on the wire be in the state of walking, access direct current negative pole, the most described generation device of rotating magnetic field generates the magnetic field that the central shaft of sand cylinder rotates on this, plating solution in sand cylinder in magnetic force line cutting, makes produce radial current in plating solution and make the diamond particles through treated cation together be combined on described wire with nickel ion；
E, solid sand and take-up: nickel plating before this and make coating be diamond particles particle diameter 1/2 to 1/3, then sequentially pass through cleanings, drying and take-up.
During preparation electroplate liquid, every liter of plating solution includes: diadust 20-60 carat, nickel sulfamic acid 200-600g, Nickel dichloride. 10-40g, boric acid 30-50g.
For preventing the crystallization of electroplate liquid, electroplate liquid is maintained at 40-60 DEG C.
The technique scheme of the present invention has the advantage that compared to existing technology
(1) electroplate liquid of the present invention is by diadust, nickel sulfamic acid, Nickel dichloride., boric acid and water mix together, in suspended state after its diamond particles is agitated, this formula have non-volatile due to nickel sulfamic acid, internal stress is low, electroplating velocity is fast, the characteristics such as dissolubility is big, so the plating solution using nickel sulfamic acid to be electroplating main salt can obtain the coat of metal more excellent than the plating solution mechanical performance that nickel sulfate is electroplating main salt, it is in particular in: a, the current density range of nickel sulfamic acid is more much greater than the scope of nickel sulfate, so the efficiency of plating solution electric current is high, the time of plating can be saved, thus improve production efficiency；B, plating solution with nickel sulfamic acid as electroplating main salt, coating crystallization is careful, uniform smooth, bright in color；C, plating solution with nickel sulfamic acid as electroplating main salt, coating internal stress is low, and deposition velocity is fast, and ductility is good, and coating sulfur content is less than 0.003%；D, nickel sulfamic acid are pollution-free, odorless, little to human toxicity, and nickel sulfate is poisonous to human body, meet water heat release cause the boiling of water and the epidermis of harm people, contact dirt foam and Organic substance, sometimes can cause after burning or blast, aerosolization bigger to the pollution of environment.
(2) process units of the diamond wire of the present invention is suitable to generate the magnetic field that the central shaft of sand cylinder rotates on this, during this magnetic field rotating, the magnetic line of force is suitable to cut the plating solution in sand cylinder, makes produce radial current in plating solution and make the diamond particles through treated cation together be incorporated evenly among on described wire with nickel ion.
(3) upper sand cylinder is disposed vertically by the present invention, be suitable to the diamond particles making wire surrounding equal on external resistance impact suffered by the stress of diamond wire, it is to be exported by pump from upper sand launder plus electroplate liquid, diamond particles in electroplate liquid is made to be in suspension all the time, so the present invention can make diamond particles be electroplated onto equably on wire.
Accompanying drawing explanation
In order to make present disclosure be more likely to be clearly understood, below according to specific embodiment and combine accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the structure chart of the generation device of rotating magnetic field in embodiment.
Detailed description of the invention
Embodiment 1
See Fig. 1, the process units of the diamond wire of the present embodiment, the nickel block including upper sand cylinder 1, being located in upper sand cylinder 1 and the wire 2 being suitable to navigate within the central shaft of sand cylinder 1 on this, this wire 2 is in negative pole, the bottom of upper sand cylinder 1 is provided with generation device of rotating magnetic field, this generation device of rotating magnetic field is suitable to generate the magnetic field that the central shaft of sand cylinder rotates on this, during this magnetic field rotating, the magnetic line of force is suitable to cut the plating solution in sand cylinder 1, makes produce radial current in plating solution and make the diamond particles through treated cation together be combined on described wire 2 with nickel ion.
Described generation device of rotating magnetic field includes: 2 to 8 pairs of magnetic piece 4 of the same circumference radial symmetric be located on the runing rest 3 that a motor drives it to rotate distribution, and the center of circle of described circumference is on described on the central shaft of sand cylinder 1.Runing rest 3 is made up of non-magnet material, such as materials such as ABS.
The magnetic pole of the abutting end of a pair magnetic piece 4 of radial symmetric is identical, and the magnetic pole of the medial extremity 41 of adjacent magnetic piece 4 is contrary.Magnetic piece 4 is permanent magnet or electric magnet, and magnetic intensity when each magnetic piece 4 works is identical；During work, by adjusting magnetic intensity or the rotating speed of runing rest 3 of electric magnet, the speed of feature plating.
Outer cylinder body that described upper sand cylinder 1 includes non-metallic material, the netted cylinder of the bilayer being made up of titanium net being sheathed in this outer cylinder body, be fixed with nickel block, and on this, sand cylinder be vertically arranged in the barrel of double-deck netted cylinder.As preferred scheme, nickel block include along upper sand cylinder central shaft uniformly, level with the polylith of circle distribution, (if not using double-deck netted cylinder, nickel block can be the nickel circle being horizontally fixed in outer cylinder body, this nickel circle and the described upper concentricity axle of sand cylinder.Described nickel block or nickel circle are directly anchored on the inwall of outer cylinder body by screw).
The inner side end of described magnetic piece is the arc surface being suitable to coordinate with the outer wall of described upper sand cylinder, and the cross section of the medial extremity of this magnetic piece is horn-like.
The lower port of described upper sand cylinder is sealedly connected with base plate, the center of this base plate is provided with the central through hole being suitable to make described wire walk, the upper sand launder being arranged right below for collecting and store electroplate liquid of described upper sand cylinder, on this, the electroplate liquid in sand launder inputs described upper sand cylinder by pump.
Embodiment 2
The production method of the diamond wire of the present embodiment comprises the steps:
The first step: just the surface of silk thread processes
First being the oils and fats to wire surface and oxide layer is carried out, the method for cleaning is first to wash with after caustic dip, then wash with after mild acid wash again.
Second step: select suitable diamond particles
The size of diamond particles is the size according to wire footpath and different and determine, the size of diamond particles is advisable with 10-50um, the diamond particles simultaneously selected should be crossed as appropriate by treated cation, because the quality of diamond particles quality will determine the quality of the quality of diamond wire.
3rd step: preparation diamond electroplating liquid
The quality of diamond electroplating liquid determines diamond particles and the bond strength of wire and the time of combination, so diamond electroplating liquid decides diamond particles can and is plated on steel wire bare wire in the production process of whole diamond wire, and be plated in the effect on steel wire bare wire, so this formula is an important auxiliary link of the present invention.The compound method of electroplate liquid is that every liter of electroplate liquid includes: diadust 20-60 carat, nickel sulfamic acid 200-600g, Nickel dichloride. 10-40g, boric acid 30-50g.
4th step: diamond particles is electroplated onto on steel wire bare wire
This process is an important step of the present invention, its method is first electroplate liquid to be put into upper sand launder to use, again from the bottom centre position of upper sand cylinder, wire is penetrated center from the top of upper sand cylinder again to pass, again electroplate liquid pump is squeezed in upper sand cylinder after putting on wire.
The principle of this process is: owing to wire is unidirectional current negative pole, and upper sand cylinder is unidirectional current positive pole, and wire is in again on the central shaft of sand cylinder, in upper sand cylinder, so it is the formation of an electric field centered by wire, under the effect of electric field, nickel block in upper sand cylinder can decomposite the nickel ion being positive and enter in electroplate liquid, nickel ion in electroplate liquid then can dissociate on wire and be reduced into nickel molecule, with the form of nickel, the diamond particles adsorbed on wire is together wrapped on wire, which forms an electroplating bath.In order to enable diamond particles to adsorb equably on wire, its method is to install an annular electromagnetic field in the lower section of upper sand cylinder, owing to diamond particles has made treated cation before this, concrete method is first at one layer of nickel ion of diamond particle surfaces bag, its magnetic line of force and the diamond particles in the plating solution motion in vertical direction when electromagnetism annular magnet rotates, so magnetic force in plating solution will be converted into electric power so that diamond particles is charged and has positive pole to present, and wire is band cathodal current, so diamond particles is adsorbed onto on wire regularly by the effect of electrostatic, when in the upper sand cylinder moving to top in wire electromagnetic field from below, the diamond particles adsorbed on wire together will be combined on wire with the nickel molecule of the reduction that dissociates on negative pole, this is electroplating principle.
5th step: Gu sand and take-up
This process is to consolidate the hold on diamond particles wire, when diamond wire is after upper sand cylinder passes, is first nickel plating, to add thickness coating, and make coating be diamond particles particle diameter 1/2 to 1/3, then sequentially pass through cleaning, dry and take-up, i.e. can get shaped article.
It should be noted that owing to electroplate liquid is acid when making and producing diamond wire instrument, and need heating, the material therefore selected should be advisable with the material of acid-resistant and heat-resistant.And from upper sand launder, it is input to the plating solution in upper sand cylinder, for keeping diamond particles in plating solution to be always maintained at suspended state, plating solution must input in sand cylinder all the way up, so the outlet of backflow should be provided with in the upper end of upper sand cylinder, so plating solution just can recycle, in sum, present invention process is simple, easy to operate, upper sand speed is fast, and diadust utilization rate is high, the diamond wire produced is under Electronic Speculum, without piling up, wire surrounding even particle distribution, is a kind of method the most quickly producing diamond wire.
Embodiment 3
Select the wire of 0.11mm, line is penetrated in equipment；
Preparation diamond electroplating liquid: weigh nickel sulfamic acid 60000g, Nickel dichloride. 3000g, boric acid 4500g, these chemical raw materials are put in electroplate liquid make-up tank, in the groove of preparation electroplate liquid, add pure water and be stirred continuously, final plating solution reaches 150 liters, extraction electroplate liquid 70 liters joins in electroplating bath, adding the 2100g diadust through treated cation again in electroplating bath, stirring electroplate liquid is also heated to 50 degree, and electroplate liquid preparation terminates.
Start admission machine, speed is adjusted to 3 meters per minute, and wire applies the unidirectional current of 0.5 ampere, at this moment the wire of 0.11mm under the traction of guide wheel from sand cylinder passes, diamond particles is just plated on wire equably, i.e. makes finished product diamond wire after thickening, rinsing and dry.
Embodiment 4
Select the wire of 0.25mm, line is penetrated in equipment；
Preparation diamond electroplating liquid: weigh nickel sulfamic acid 60000g, Nickel dichloride. 3000g, boric acid 4500g, these chemical raw materials are put in electroplate liquid make-up tank, in the groove of preparation electroplate liquid, add pure water and be stirred continuously, final plating solution reaches 150 liters, extraction electroplate liquid 70 liters joins in electroplating bath, adding the treated diadust of 2800g again in electroplating bath, stirring electroplate liquid is also heated to 50 degree, and electroplate liquid preparation terminates.
Start admission machine, speed is adjusted to 3 meters per minute, and wire applies the unidirectional current of 0.75 ampere, at this moment the wire of 0.25mm under the traction of guide wheel from sand cylinder passes, diamond particles is just plated on wire equably, i.e. makes finished product diamond wire after thickening, rinsing and dry.
Obviously, above-described embodiment is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And these spirit belonging to the present invention are extended out obvious change or variation still in protection scope of the present invention among.
Claims (1)
1. the method that the process units applying diamond wire produces diamond wire, described process units includes: goes up sand cylinder, the nickel block in positive pole being fixed on this on sand cylinder inwall and is suitable to navigate within the wire of the central shaft of sand cylinder on this, this wire is negative pole, it is characterised in that:
The bottom of neighbouring described upper sand cylinder is provided with generation device of rotating magnetic field, this generation device of rotating magnetic field is suitable to generate the magnetic field that the central shaft of sand cylinder rotates on this, during this magnetic field rotating, the magnetic line of force is suitable to cut the plating solution in sand cylinder, makes produce radial current in plating solution and make the diamond particles through treated cation together be combined on described wire with nickel ion；
Described generation device of rotating magnetic field includes: the multipair magnetic piece of the same circumference radial symmetric be located on runing rest distribution, and the center of circle of described circumference is on described on the central shaft of sand cylinder；
The magnetic pole of the abutting end of a pair magnetic piece of radial symmetric is identical, and the magnetic pole of the medial extremity of adjacent magnetic piece is contrary；
Magnetic piece is electric magnet；
The described method producing diamond wire, comprises the steps:
A, the surface of wire process；
B, preparation plating solution；
C, electroplate liquid is put in upper sand launder, and by electroplate liquid by the upper sand cylinder of upper sand launder input, then on the nickel block in upper sand cylinder, access direct-flow positive pole；
D, wire is made to penetrate from the lower center of upper sand cylinder, pass from upper end center again, and on the wire be in the state of walking, access direct current negative pole, the most described generation device of rotating magnetic field generates the magnetic field that the central shaft of sand cylinder rotates on this, plating solution in sand cylinder in magnetic force line cutting, makes produce radial current in plating solution and make the diamond particles through treated cation together be combined on described wire with nickel ion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610458082.3A CN105908243B (en) | 2013-05-09 | 2013-05-09 | A kind of method for producing diamond wire |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610458082.3A CN105908243B (en) | 2013-05-09 | 2013-05-09 | A kind of method for producing diamond wire |
| CN201310167734.4A CN104088000B (en) | 2013-05-09 | 2013-05-09 | The production method of diamond wire |
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| CN201310167734.4A Division CN104088000B (en) | 2013-05-09 | 2013-05-09 | The production method of diamond wire |
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| CN105908243A true CN105908243A (en) | 2016-08-31 |
| CN105908243B CN105908243B (en) | 2017-12-12 |
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| CN201610458083.8A Pending CN106087005A (en) | 2013-05-09 | 2013-05-09 | The method of work of diamond wire process units |
| CN201610458082.3A Active CN105908243B (en) | 2013-05-09 | 2013-05-09 | A kind of method for producing diamond wire |
| CN201310167734.4A Active CN104088000B (en) | 2013-05-09 | 2013-05-09 | The production method of diamond wire |
| CN201610458081.9A Pending CN106087004A (en) | 2013-05-09 | 2013-05-09 | Diamond wire process units produces the method for diamond wire |
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| CN201610458083.8A Pending CN106087005A (en) | 2013-05-09 | 2013-05-09 | The method of work of diamond wire process units |
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| CN201310167734.4A Active CN104088000B (en) | 2013-05-09 | 2013-05-09 | The production method of diamond wire |
| CN201610458081.9A Pending CN106087004A (en) | 2013-05-09 | 2013-05-09 | Diamond wire process units produces the method for diamond wire |
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- 2013-05-09 CN CN201610458083.8A patent/CN106087005A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104088000A (en) | 2014-10-08 |
| CN106087004A (en) | 2016-11-09 |
| CN104088000B (en) | 2016-08-17 |
| CN105908243B (en) | 2017-12-12 |
| CN106087005A (en) | 2016-11-09 |
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