CN1154285A - Method for polishing fiber optic connector ends - Google Patents
Method for polishing fiber optic connector ends Download PDFInfo
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- CN1154285A CN1154285A CN 96122866 CN96122866A CN1154285A CN 1154285 A CN1154285 A CN 1154285A CN 96122866 CN96122866 CN 96122866 CN 96122866 A CN96122866 A CN 96122866A CN 1154285 A CN1154285 A CN 1154285A
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Abstract
Disclosed is a polishing method for an optical transmission product, in particular for a physical contacting end surface of an optical fiber connector, which comprises the steps: making an abrasive product to contact with the end surface of an optical cable connector by friction, the abrasive product is an erodible abrasive coating, which comprises water-soluble adhesives bonded to a backing, and abrasive particles; and relatively moving the abrasive product of the optical transmission product to abrade the end surface of a substrate, wherein the abrasive coating is contacted with the water solution, and the solution does not contain the abrasive particles before contacting the abrasive coating.
Description
The present invention relates to use the method for abrasive product polishing fiber optic connector ends, be particularly related to the method for using the coated abrasives polishing fiber optic connector ends, in described coated abrasives, use water-soluble binder releasedly suitable fine powder abrasive particle to be bonded on the backing.
Optical cable is a transmission telecommunication signal medium preferably.When installing, repairing or changing the glass optical fiber of carrier band signal in this medium, need independent glass optical fiber is connected with other glass optical fiber.Usually, the joints of optical fibre are meant the element that can connect or be connected two strands of optical fiber, can make it to break away from case of necessity.This Connection Element of one class is a thimble connector.Thimble connector uses a roughly cylindrical collimator assembly, and this assembly has a center pit can accept single glass optical fiber adaptedly.During use, that glass optical fiber is bonding or be bonded in the sleeve pipe.The end face of sleeve pipe/fiber assembly is through grinding and polishing, in then two this sleeve pipes are packed into common coupling sleeve, sleeve pipe or the connector so that the end face of glass optical fiber is physically linked together basically.This class thimble connector is reported in Laser Focus World, and August 1992, pp.123-130.
Along with the performance requirement to fiber optic system improves day by day, the requirement of the connector that is used for this system is also improved thereupon.For the light that improves thimble connector transmits, must the glass optical fiber that be positioned at the connector ends part be carried out mirror polish, make it not have scratch and distortion, and the end face of the corresponding glass optical fiber that must be connected with desire accurately matches.In brief, the suitable polishing of box face is a key of making acceptable connector, when the tie point of signal by described connector transmits, and the not inhibition that can be harmful to.
After the end surface grinding with the joints of optical fibre becomes suitable geometric configuration, it is polished.The finishing method of the joints of optical fibre commonly used is to use a kind of loose abrasive slurry.But be to use the loose abrasive slurry to have many shortcomings.Known shortcoming comprises the inconvenience when handling volume required abrasive material slurry; Need to stir to prevent that the abrasive particle precipitation is to guarantee having uniform wear particle concentration on the grinding interface; Need supplementary equipment therefore to make, to handle and to reclaim and regeneration abrasive particle slurry.In addition, need itself analyze to guarantee the stability of its quality and dispersion degree loose slurry, this needs to take expensive manpower inevitably.In addition, the special and undesirable wearing and tearing of the normal appearance of the contacted device of slurry in the other parts of pump head, valve, feed pipe, grinding tool and slurry feeder apparatus.In addition, the loose abrasive slurry is difficult to operation, and in polishing operation zone and normal produce a large amount of residue and waste material on every side.
Therefore, in joints of optical fibre polishing field, need a kind of abrasive product, this product has the convenience of coated abrasives product, can reach similar in appearance to the polishing effect of loose abrasive slurry again, and not have the known shortcoming that is produced when using loose abrasive slurry polishing fiber connector.
The invention provides the method that the erodible coated abrasives product of a kind of use polishes light transmission goods (the particularly joints of optical fibre).
In example of the present invention, with a kind of abrasive product and the end surfaces rubbing contact that is bonded on the light transmission goods of making in long-life, the relative sleeve pipe harder, hollow by glass optical fiber frangible, relative softness, end surfaces to these light transmission goods polishes, described abrasive product comprises abrasive coating (this coating comprises water-soluble jointing material, spreading agent or stabilizing agent and abrasive particle), and wherein abrasive coating is bonded on the backing; By the end surfaces of light transmission goods and relatively moving of abrasive product, and make contact end surfaces to the light transmission goods of abrasive coating and aqueous solution grind (not containing abrasive particle) with described aqueous solution before abrasive coating contacts, obtain can not suppressing nocuously by these light transmission goods signal, through the matrix of polishing.
Of the present invention one preferably example a kind of method of end surfaces of polishing fiber connector is provided, its step comprises:
(a) form a kind of abrasive product that has an exposing surface at least, adhesively be coated with the potpourri of water-soluble binder material, spreading agent or stabilizing agent and abrasive particle on the described surface;
(b) surface through applying with abrasive product contacts with aqueous solution, is not containing abrasive particle with this aqueous solution before abrasive coating contacts;
(c) make the end surfaces and the abrasive product rubbing contact of fibre-optic light guide cable connector;
(d) relatively moving fiber fiberguide cable connector and abrasive product polish the end surfaces of optical connector grinding the end surfaces of optical connector, form the signal that can not suppress nocuously by this connector, through the end surfaces of polishing.
Specifically, abrasive product comprises the erodible abrasive coating on the backing that is attached to one deck flexibility, and described abrasive coating comprises the fine powder abrasive particle is bonded in water-soluble binder on the backing releasedly.The polishing of the end surfaces of the joints of optical fibre is performed such: abrasive coating is contacted with aqueous solution, relatively move the end face of connector and abrasive product to remove the lip-deep scratch of optical fiber end, when with before abrasive coating contacts, the solution that provides from source of solvent does not contain abrasive particle.
With a spot of water or other suitable aqueous solution (solution that does not contain abrasive particle), as pre-wetted solution or in grinding or polishing process, contact with the surface of the abrasive coating of abrasive product of the present invention, be preferably in grind before and all use aqueous solution to contact in the process of lapping with surperficial, make abrasive coating produce slurry in the polishing process original place, thereby make the user can use clean, maneuverable dry grinding tablet (dry sheet) beginning polishing operation.The abrasive sheet that uses in the inventive method comprises one deck coating, and this coating comprises the dry grinding material slurry that is bonded on the backing.In use this coating is formed the loose abrasive slurry that can effectively polish gradually by erosion, and polishing effect is equal to conventional loose slurry at least.Preparation, coating, dry abrasive coating composition make it to produce one deck coating, and this coating will and discharge the abrasive particle of its carrier band by erosion or decomposition with controlled speed under service condition.This abrasive particle that discharges gradually can freely rotate, thereby produces the surface of uniform polish.
The better water solubility bonding agent comprises polyvinyl alcohol (PVA), polyacrylamide or polyethylene oxide, and above-claimed cpd can use separately or at random be used in combination.In an example, the contained abrasive particle of abrasive coating and the weight ratio of water-soluble binder are respectively 7: 1-3: 1.
Further feature of the present invention, advantage and structure can obtain understanding from the description of accompanying drawing and detailed description of the present invention.
Fig. 1 is the cross-sectional view of the joints of optical fibre.
Fig. 2 is the cross-sectional view of the amplification of Fig. 1 end surface of optical fiber connector.
Fig. 3 is the cross-sectional view of the abrasive product that uses in the methods of the invention.
The invention provides a kind of method of using abrasive product polishing fiber connector. Described abrasive product comprises Abrasive coating, abrasive particle is dispersed in the water-soluble binder in this coating. Abrasive particle is evenly dispersed in In the water-soluble binder in the abrasive coating. Under this form, when under wet condition, using abrasive product The time, water-soluble binder can soften and discharge abrasive particle, still is carried on undissolved adhesive thereby expose On, fresh abrasive particle. Water-soluble binder can very fast erosion. Therefore, although do not wish to be taken office this moment The constraint what is theoretical, but believe that in polishing process only fresh abrasive particle is present in working surface and mill On the interface between the tablet goods. After the short time, the abrasive particle of wearing and tearing will be discharged and be moved from the polishing interface Walk. In addition, the water meeting demineralized water soluble adhesive that uses in the polishing process in theory, and final formation Cream or the gel of loose, smooth abrasive particle and water-soluble binder. This abrasive particle cream polishing fiber surface then. Compare with slurry, the movement of abrasive particle is subjected to more restriction, therefore can carry out cleaner, more uniform polishing.
Use suitable microscopic examination, can check easily the joints of optical fibre through polished surface. About Under 400 power microscopes, the connector through polishing that the inventive method provides does not observe scratch or other is considerable The defective of examining. The connector ends through polishing that reaches this standard can make signal pass through this connector and can not Detrimentally suppress this signal. When the light that uses wavelength to be about 1300-1600nm is analyzed, this connection Device demonstrates antiradar reflectivity (greater than about 50dB), low decay (less than about 0.1dB), and show that have can The stability of accepting.
In addition, can use various known analytical technologies and method to carrying out quantitative analysis through polished surface. For example, can measure the surface smoothness value that represents with Ra (also claiming center line mean value). Ra is mathematicasis Language is used for the measurement of surface smoothness. Ra is that the profile (roughness profile) of coarse part departs from The arithmetic mean of instantaneous value of the absolute value of average line or center line. This center line is separated the profile of coarse part, so that Be equal at this area below line at this area more than line. Ra often represents with micron, dust or nanometer.
Can use Wyko TOPO-3D interferometer with 40 times of object lens (available from Arizona State Tucson's Wyko Corp.) measures the Ra value. Will be appreciated that and also can use in the methods of the invention other to measure the side of Ra Method.
Can use various materials to make sleeve pipe. Can use hard amorphous glass material (such as alkali metal, alkaline earth The molten mixture of metal or heavy metal silicate) makes suitable glass material. Suitable ceramic material can By various hard materials (this material is by with nonmetallic mineral, as clay be shaped and at high temperature calcining and Become) make. This ceramic material comprises ceramal, such as silicon nitride, carborundum, zirconia and aluminium oxide. Other useful material comprises stainless steel or filled polymer.
Fig. 1 has shown that a kind of typical optical fiber connects or physical contact connects. This connection comprises sleeve 10, should First and second sleeve pipes 12 and 14 of physical contact are placed and held to sleeve adaptedly. First sleeve pipe 12 and First and second glass optical fibers 16 and 18 are admitted in two sleeve pipes, 14 all middle vacant lots. For purposes of illustration, at figure Show adhesive or cement thin layer 20 in 1 and wrapped in known covering 22 on each glass optical fiber. Although Fig. 1 is in proportion mapping not, it demonstrates first sleeve pipe 12 and second sleeve pipe 14 all is ground into Gibbosity form is so that the end face of each sleeve pipe can carry out suitable physical contact.
Fig. 2 be Fig. 1 amplification, partial view, show that glass optical fiber 16 is with respect to sleeve pipe 12 depressions approximately The sunk area 24 of the precision of 50-100nm. Because the actual stress of physical contact is by relatively between this moment sleeve pipe Sleeve pipe harder in softer glass optical fiber bears, so should the depression method give suitable connection The several advantages of device. The cracking of glass optical fiber during in addition, inner separation has prevented from using between the joint sleeve, Fragmentation or explosion, simultaneously so that glass optical fiber can not be scratched and be out of shape. Have to a certain degree although require Depression, but the people with general skill understands at an easy rate, if sunk area 24 do not have enough accurately Degree and the degree of accuracy divide the joint that forms will produce harmful attenuated optical signal at connector connection part.
Fig. 3 has shown abrasive product 30 of the present invention. Abrasive product 30 comprises backing 32, abrasive particle 36 and sticking Mixture 38. Adhesive 38 is water-soluble binders. Before using abrasive product of the present invention to carry out polishing operation, Should make abrasive product be subjected to the effect of water source or other suitable aqueous solvent. Through the effect of water, so that water In the water leaking-in soluble adhesive 38, make it suitably to soften to be used for polishing.
Available back lining materials comprises film, foams, paper, flocking (flocks), weaves or non-weaving Cloth. The film backing comprises smooth and (comprising foam-like) porous backing. This film backing can be example Such as polyester, polyester terephthalate, polypropylene, polyethylene, nylon and combination thereof. Cloth can be a kind of spinning Knit or non-textile substrates. The example of non-woven fabric comprises knitting, the substrate of elasticity non-woven fabric and paper shape And can be by staple fiber, spunbond staple fibre, extrude fiber etc. and make. The cloth backing can be, for example cotton, Polyester, artificial silk, aromatic polyamides, silk, nylon and/or its combination. Because in suitable abrasive product The particle diameter less of abrasive particle (namely less than 5 microns) is so the fiber in the non-woven fabric backing preferably Carefully. Preferably make the diameter of fiber less than about 20 microns.
The present invention preferably backing is the closely foam-back of thick about 20mil. It is available from the Massachusetts Chelmsford, Freudenberg Nonwovens Limited Partnership.
The thickness of backing is generally 1-50mil, is preferably 10-30mils. The weight of backing is generally 7-150g/m2, be preferably 17-70g/m2 In the present invention, can use the backing of one deck only or the back of the body that uses multilayer to form Lining. This multilayer can be 1-10 tunic, yarn fabric or non-woven fabric, is preferably the 2-5 layer. Sometimes wish Backing has barrier coat, as the polyester terephthalate film superimposed to backing without that of abrasive material coating Face forms the barrier layer.
Other adjuvant as known in the art such as tough formed material, stabilizing agent, shaping stabilizing agent, filler, dyestuff, pigment, spreading agent, wetting agent, surfactant, coupling agent, antistatic agent, oil, fire retardant, UV light stabilizing agent, internal lubricant, antioxidant and processing auxiliary agent also can have been added in the abrasive coating of the present invention.
Abrasive coating is bonded at least one surface of fibre-bearing porous backing.This abrasive coating is made by the abrasive material slurry, and described abrasive material slurry comprises the many abrasive particles that are dispersed in the whole water-soluble binder precursor.Abrasive particle
The particle diameter of abrasive particle is about the 0.01-10 micron usually, is preferably the 0.05-1 micron.If the particle diameter of abrasive particle is too big, the connector surface that obtains has scratch or rough edge.If the particle diameter of abrasive particle is too little, it is oversize to remove the needed polishing time of scratch.In addition, preferably the size distribution of abrasive particle is carried out strict control.Preferably make particle size distribution range less to reduce the amount of unacceptable scratch.
The Mohs value of abrasive particle should be at least about 6, more preferably greater than 7.The example of this abrasive particle comprises aluminium oxide (comprise the aluminium oxide, ceramic-like aluminium oxide, white fused aluminum oxide of consolidation, through heat treated aluminium oxide, blue alumina and any transition state of alumina, as β, γ, η etc.), silit, corundum, zirconia, adamas, ceria, silicon dioxide, cubic boron nitride, emery, mullite and composition thereof or chemical association.The term abrasive particle comprises also that single abrasive particle is bonded together and the abrasive particle group that forms.Adhesive precursor
Adhesive precursor is a kind of water-soluble polymers, and this adhesive precursor is coated on the fibrous backing, and keeps still after drying that it is water-soluble.The example of this water soluble resin comprises polyvinyl alcohol (PVA), starch, casein, vinyl acetate, polyethylene oxide, polypropyleneoxide, gelatin etc.Number-average molecular weight is about 20, and 000-80,000 polyvinyl alcohol (PVA) are the better water solubility bonding agents.
The weight ratio of adhesive solids content in water-soluble binder precursor coating composition (before dry) is about 1: 1-1: 8 (adhesive solids: water), be preferably 1: 2-1: 5.
This water-soluble binder precursor also can contain non-soluble polymer or non-soluble polymer precursor.But the chemical property of these materials and quantity should be to the erosion generation harmful effects of abrasive coating.
Adhesive precursor often is in liquid state, its uncured state or non-polymeric state.After the abrasive material slurry is applied on the backing, be dried to this adhesive precursor solid-state or near solid-state.In case the adhesive precursor drying, it will change into bonding agent, and the abrasive material slurry will change into abrasive coating.
Abrasive particle in abrasive coating: the weight ratio of bonding agent is preferably 7: 1-3: 1, be preferably 6: 1-4: 1.Adjuvant
Also can contain optional adjuvant in the abrasive coating, as filler (comprising grinding aid), fiber, lubricant, spreading agent, wetting agent, stabilizing agent, thixotropic materials, surfactant, pigment, dyestuff, antistatic agent, coupling agent, crosslinking chemical, plastifier and suspending agent, the consumption of selecting these materials is to obtain required performance.Use these materials can change the erosion of abrasive coating.
Coupling agent works to connect bridge between adhesive precursor and filler particles or abrasive particle.The example of coupling agent comprises silane, titanate and zircoaluminate.An example of silane coupling agent is the commodity available from Union Carbide A-174 by name.The weight of coupling agent preferably accounts for about 0.01-15% of abrasive particle general assembly (TW) in the abrasive material slurry (bonding agent, adjuvant add abrasive particle).Abrasive particle can carry out pre-service with coupling agent earlier, and promptly coupling agent is applied directly to the surface of abrasive particle.Also coupling agent can be sneaked in the abrasive material slurry.The method for preparing abrasive product
Available following method prepares the abrasive product of the present invention through applying: abrasive particle, adhesive precursor and optional adjuvant are mixed together, form the abrasive material slurry.Mixed method is to use the muller with glass or ceramic dielectric preferably.Grinding helps to disperse abrasive particle group.Coating process (as roller coat, scraper coating, mouthful pattern coating, spraying or curtain flow coat cloth) with any routine is applied to the abrasive material slurry at least one surface of backing.During coating, some abrasive material slurry can infiltrate in the backing, and still, this abrasive material slurry can not seal backing fully.Then, make adhesive precursor dry and form abrasive coating.Drying condition depends on the chemical property of adhesive precursor, but drying condition commonly used was included in about 80-150 ℃ heat drying about 2-10 minute.
Coating process is to use this coating process to form even, the continuous or basic continuous coating of thickness on the surface of backing preferably, for example uses knurling roller coating, roller coat cloth, spraying, mouthful pattern coating, curtain flow coat cloth, extrudes scraper coating etc.Coating weight is about 22-30g/m preferably
2The abrasive material slurry is coated on discrete form on the surface of backing and is also included within the scope of the present invention, as the abrasive material slurry is coated on the backing with strip or point-like.
The abrasive product of Shi Yonging can also be used for other (not being the polishing fiber connector) grinding or polishing occasion in the methods of the invention.This abrasive product is to replace the loose abrasive slurry of use or the good substitute of fine powder level fixed-abrasive (as polished film) in any use occasion in theory.
The following example will further specify the present invention.Except as otherwise noted, all umbers, percentage and ratio etc. are all calculated by weight.Embodiment 1
The 500g abrasive media is added in the grinding container of pottery, the 49g deionized water is housed in this container, 133.3g 30%Elvanol 51-05 solution is (available from the E.I.Dupont andCompany of Delaware State Wilmington, number-average molecular weight is about 25,000), the monodisperse silica inorganics (available from the Geltech of Florida State Alachua) of 20g BYK-182 (available from the BYK-Chemie of Connecticut State Wallingford) and 100g 50nm diameter.Obtain inorganics and resin than the dispersion that is 5 43% solid.Wetting agent account for inorganics and BYK-182 solid weight 10%.With this dispersion ball milling 16 hours and be applied on the semirigid foam type backing.This dispersion is to use the scraper in 3mil gap to be coated on the backing, and 250 dryings 5 minutes.Application rate is a 5-7 feet per minute clock.With SeikoGiken SFP-70D buffing machine the product that obtains is used as the final brilliant polish of single mode, porcelain bushing, ST connector then.At first the PSA backing is applied on coated product, then this product is made suitable size and dimension.Before final polishing step, connector is made end surface shape and polishing with standard by the several diamond lap.Deionized water is applied to final polishing material also to be sprayed in its surface.This is the necessary before use dissolving of water-soluble binder.Abrasive sheet to 4 inch diameters need drip with about 12.Use 30,60,120 seconds polishing times.In the time of 120 seconds less than the return loss (returnloss) of the depression of 100nm up to 56dB.In the time of 60 seconds less than the return loss under the 40nm depression up to 50dB, in the time of 30 seconds less than the return loss under the depression of 12nm up to 38dB.Embodiment 2
The 700g abrasive media is added in the grinding container of pottery, the 164.2g deionized water is housed in this container, 133.3g 30%Elvanol 51-05 solution (available from Dupont), the gamma-alumina inorganics that 40g BYK-156 (available from BYK-Chemie) and 100g are 0.05 micron (available from the Baikowski of North Carolina state Charlotte).Obtain inorganics and resin than the dispersion that is 5 32% solid.Wetting agent account for inorganics and BYK-156 solid weight 20%.With this dispersion ball milling 16 hours and be applied on the semirigid foam type backing.This dispersion is to use the scraper in 3mil gap to be coated on the backing, and 250 dryings 5 minutes.Application rate is a 5-7 feet per minute clock.With Seiko GikenSFP-70D buffing machine the product that obtains is used as the final brilliant polish of single mode, porcelain bushing, ST connector then.At first the PSA backing is applied on coated product, then this product is made suitable size and dimension.Before final polishing step, connector is made end surface shape and polishing with standard by the several diamond lap.Deionized water is applied to final polishing material also to be sprayed in its surface.This is that water-soluble binder is dissolved before use is necessary.Abrasive sheet to 4 inch diameters need drip with about 12.Use 30,60,120 seconds polishing times.In the time of 120 seconds less than the return loss under the depression of 30nm up to 45dB.In the time of 60 seconds less than the return loss under the 20nm depression up to 45dB, in the time of 30 seconds less than the return loss under the depression of 10nm up to 42dB.Embodiment 3
The 500g abrasive media is added in the grinding container of pottery, the 47.4g deionized water is housed in this container, 133.3g 30%Elvanol 51-05 solution (available from Dupont), the cerium oxide inorganics of 10g BYK-182 (available from BYK-Chemie) and 0.5 micron 99% purity of 100g (available from the Rhone Poulenc of New Jersey Dayton).Obtain inorganics and resin than the dispersion that is 5 43% solid.Wetting agent account for inorganics and BYK-182 solid weight 5%.With this dispersion ball milling 16 hours and be applied on the semirigid foam type backing.This dispersion is to use the scraper in 3mil gap to be coated on the backing, and 250 dryings 5 minutes.Application rate is a 5-7 feet per minute clock.With Seiko GikenSFP-70D buffing machine the product that obtains is used as the final brilliant polish of single mode, porcelain bushing, ST connector then.At first the PSA backing is applied on coated product, then this product is made suitable size and dimension.Before final polishing step, connector is made end surface shape and polishing with standard by the several diamond lap.Deionized water is applied to final polishing material also to be sprayed in its surface.This is the necessary before use dissolving of water-soluble binder.Abrasive sheet to 4 inch diameters need drip with about 12.Use 10 and 30 seconds polishing times.In the time of 30 seconds less than the return loss under the depression of 70nm up to 53dB.In the time of 10 seconds less than the return loss under the 10nm depression up to 42dB.Embodiment 4 is added to the 500g abrasive media in the grinding container of pottery, the 47.4g deionized water is housed in this container, 133.3g 30%Elvanol 51-05 solution (available from Dupont), and the cerium oxide (available from Buddhist Rhone Poulenc) of 0.5 micron 99% purity of 100g 25/75 mixing and the monodisperse silica inorganics (available from Geltech) of 50nm diameter.Obtain inorganics and resin than the dispersion that is 5 43% solid.Use potassium hydroxide with pH regulator to 10.5 so that this dispersion stable.With this dispersion ball milling 16 hours and be applied on the adhesive-bonded fabric backing.This dispersion is to use the scraper in 3mil gap to be coated on the backing, and 250 dryings 5 minutes.Application rate is a 5-7 feet per minute clock.Polish the final brilliant polish that the product that will obtain is used as single mode, porcelain bushing, ST connector then by hand.At first the PSA backing is applied on coated product, then this product is made suitable size and dimension.Before final polishing step, connector is made end surface shape and polishing with standard by the several diamond lap.Deionized water is applied to final polishing material also to be sprayed in its surface.This is that water-soluble binder is dissolved before use is necessary.Abrasive sheet to 4 inch diameters need drip with about 12.Polishing by hand finishing method is made up of 8 operations of 10 kinds of figures (10 figure eight strokes).Less than the return loss under the depression of 80nm is 50dB.
Under the situation that does not depart from scope and spirit of the present invention, various improvement of the present invention and to change the people who has general skill in this area be conspicuous, and will be appreciated that and the invention is not restricted to the example that is used to illustrate that this instructions exemplifies.
Claims (10)
1. method of polishing the end surfaces of optical connector, its step comprises:
(a) with the end surfaces rubbing contact of a kind of abrasive product and optical connector, described abrasive product comprises the abrasive coating that contains water-soluble binder material and abrasive particle, and described abrasive coating is bonded on the backing;
(b) relatively move the end surfaces of optical connector and abrasive product to grind described end surfaces, described abrasive coating contacts with aqueous solution, do not containing abrasive particle with this liquid solution before abrasive coating contacts, formation is through the optical connector of polishing, and this connector can not suppress the transmission signals by these joints of optical fibre nocuously.
2. the method described in claim 1 is characterized in that backing is selected from the cloth of film, foams, paper, flocking, non-weaving and weaving.
3. the method described in claim 1 is characterized in that backing comprises foam-back closely.
4. the method described in claim 1 is characterized in that the water-soluble binder material is selected from polyvinyl alcohol (PVA), polyacrylamide and polyethylene oxide.
5. the method described in claim 1 is characterized in that abrasive coating comprises that weight ratio is 7: 1-3: 1 abrasive particle and water-soluble binder.
6. the method described in claim 1 is characterized in that the mean grain size of abrasive particle is about the 0.01-10 micron.
7. the method described in claim 1 is characterized in that described abrasive particle comprises aluminium oxide, cerium oxide and silicon dioxide.
8. the method described in claim 1 is characterized in that grinding steps also comprises to be roughly round figure vibration abrasive product.
9. the method described in claim 1 is characterized in that abrasive coating also comprises optional adjuvant.
10. method of polishing the end surfaces of optical connector, its step comprises:
(a) form a kind of abrasive product that has an exposing surface at least, adhesively be coated with the potpourri of water-soluble binder material and abrasive particle on the described surface;
(b) surface through applying with abrasive product contacts with aqueous solution, is not containing abrasive particle with this aqueous solution before abrasive coating contacts;
(c) make the end surfaces and the abrasive product rubbing contact of optical connector;
(d) relatively mobile optical connector and abrasive product to be grinding the end surfaces of optical connector, and the end surfaces of optical connector is polished, form the signal that can not suppress nocuously by this connector, through the end surfaces of polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96122866 CN1154285A (en) | 1995-11-07 | 1996-10-17 | Method for polishing fiber optic connector ends |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US551775 | 1983-11-14 | ||
| CN 96122866 CN1154285A (en) | 1995-11-07 | 1996-10-17 | Method for polishing fiber optic connector ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1154285A true CN1154285A (en) | 1997-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96122866 Pending CN1154285A (en) | 1995-11-07 | 1996-10-17 | Method for polishing fiber optic connector ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1154285A (en) |
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1996
- 1996-10-17 CN CN 96122866 patent/CN1154285A/en active Pending
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