CN101704277A - Multi-layer diamond brazing body and manufacture method thereof - Google Patents
Multi-layer diamond brazing body and manufacture method thereof Download PDFInfo
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- CN101704277A CN101704277A CN200910112028A CN200910112028A CN101704277A CN 101704277 A CN101704277 A CN 101704277A CN 200910112028 A CN200910112028 A CN 200910112028A CN 200910112028 A CN200910112028 A CN 200910112028A CN 101704277 A CN101704277 A CN 101704277A
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Abstract
The invention discloses a multi-layer diamond brazing body and a manufacture method thereof. In the manufacture method of the multi-layer diamond brazing body, a multi-layer diamond block blank is prepared by using a slurry injection molding method or a die compression molding method and then the multi-layer diamond block blank is singly brazed and molded or directly brazed on a metal base body by the coverage of temperature resistant nonmetal power or particles and the protection of vacuum, an inert gas or a reducing gas. The manufacture method has the characteristics of low manufacture cost, simple and reliable process and strong repeatability.
Description
Technical field
The present invention relates to a kind of multi-layer diamond brazing body and manufacture method thereof that is widely used in stone material, pottery, glass and concrete cutting technique.
Background technology
The mono-layer diamond soldering tech, this is a kind of under vacuum condition, adopts brazing powder that the diamond of one deck directly is welded on the metal base surface.Because diamond is with the metallurgical binding that is connected to of matrix, so never come off.Diamond is the mountain peak shape, goes out sword and is about 1/3 to 2/3 of diamond particles.And, be convenient to chip removal owing to around diamond, a lot of spaces is arranged, and this has just caused diamond soldering appliance sharp especially, and can do usefulness, and brazing product is used for replacing corresponding diamond electroplating instrument, and its life-span can improve more than 5 times.Diamond soldering appliance belongs to the cutting polissoir, is widely used in the grinding processing is carried out on stone material, pottery, glass, concrete cutting and surface.But the mono-layer diamond soldering tech also has its weak point, and this is that working lining is thinner owing to have only one deck diamond, and the life-span is not as sintered products.
The diamond tool sintering technology, be that the mould of packing into is put into sintering machine after diamond and the metal powder mixing, the technology that sintering forms under the acting in conjunction of certain temperature and pressure, and be widely used in the manufacturing of diamond tools such as diamond saw blade, emery wheel.But because diamond is followed the mechanical bond that is connected to of carcass, rather than metallurgical binding, diamond comes off after having gone out the sword height easily, causes waste and sharp inadequately.Again since the carcass of sintering not fine and close, leave the space, the peripherad heat radiation of heat that is produced when carcass is with workpiece contact or friction during cutting is bad, must use a large amount of water to cool off, in case cool off bad, can cause that the diamond near zone that participates in cutting heats up rapidly, carcass deliquescing, diamond drop-off, cause whole diamond working layers soon because overheated and damage, influence the service life of diamond tool.In addition, the diamond sintering product is subjected to the influence of many unfavorable factors easily in manufacture process, as expect oxidation, sintering machine temperature, the control accuracy of pressure and the weather humidity of environment etc. of powder, can not obtain stay-in-grade diamond sintering instrument, this also is the significant problem that perplexs producer and user for a long time.
The multi-layer diamond brazing instrument is the developing direction of modern diamond tool product with the sharpness of single layer soldering instrument and the anti-wear performance of sintering instrument.But, the manufacture method ubiquity complex steps of existing multi-layer diamond brazing body, industrial operation complicated problems.
Summary of the invention
The object of the invention is to provide a kind of manufacture method of multi-layer diamond brazing body, to solve the above-mentioned problems in the prior art.This manufacture method adopts slip casting or compression molding method to make multi-layer diamond joint piece blank; then under the covering of heatproof non-metal powder or particle; and under the protection of vacuum, inert gas or reducing gas; with multi-layer diamond save the independent lead welding and shaping of piece blank or directly soldering on metallic matrix, have low cost of manufacture, simple and reliable process, repeatable strong characteristics.
Technical scheme provided by the invention is as follows:
The manufacture method of multi-layer diamond brazing body may further comprise the steps:
1) batch mixing: with weight ratio is that 100: 1～30 brazing powder and diamond abrasive grain are packed in the airtight container, adopts batch mixer evenly to mix, and obtains the material powder;
2) the above-mentioned material powder employing method of forming is made the joint piece blank that rule or irregular alignment have two-layer at least diamond abrasive grain;
3) get a pottery or graphite pallet, above-mentioned joint piece blank is placed on the pallet, then with pallet together with the joint piece blank soldering mould of packing into, and in the soldering mould, charge into the powder or the particle of nonmetal temperature-resistant material, be used for to joint piece blank cut apart, fixing and apply certain pressure; Above-mentioned soldering mould is put into vacuum brazing furnace, finish whole brazing process in vacuum or under the protection of inert gas or reducing gas; Take out the soldering mould with stove cooling back, pour out the powder or the particle that are filled in the nonmetal temperature-resistant material on the pallet, obtain the soldering joint piece that rule or irregular alignment have two-layer at least diamond abrasive grain;
4) with the block welding of the soldering that obtains joint on metallic matrix or disperse to be embedded in resin or the rubber layer, obtain the multi-layer diamond brazing body semi-finished product;
5) the multi-layer diamond brazing body semi-finished product that obtain in the step 4 are put the first edge on a knife or a pair of scissors on grinding machine, modify, obtain the multi-layer diamond brazing body product.
In above-mentioned manufacture method, by the different diamonds chosen and the proportioning of brazing powder, different diamond grades and granularity and combination, the brazing powder of different hardness, the matrix of difform joint piece and different shape, can make variously cut, grind, brill, miller tool, as saw blade joint piece, saw blade, beading, bowl mill, emery wheel, abrading block, abrasive disc, bistrique, drill bit, cutting milling cutter, engraving milling cutter or the like, to adapt to user's different needs.The shape of diamond block can be Any shape, and its shape can decide according to different needs, is generally circular columns, trapezoidal column, ovallized column, triangular column or regular polygon column etc.Employed metallic matrix can adopt general steel plate, red copper or stainless steel material to make, or adopts continuous thin plate, also can be thin plate or the screen cloth that has mesh.The article shape that the shape of metallic matrix is then made is as required determined, can be revolving body, also can be other shapes such as plane.
The preferred use brazing powder that hardness is lower, fusing point is lower uses the lower brazing powder of hardness to help to reduce the hardness of the joint piece carcass of making among the present invention, makes diamond go out sword easily, improves the adaptivity of instrument; Simultaneously,, make its machined material that can extensively adapt to various hardness, improve the universal performance of product, and put the first edge on a knife or a pair of scissors easily and modify because instrument adopts soft matrix formula; Use the lower brazing powder of fusing point then can reduce pyroprocess to adamantine damage.
Described graphite or ceramic pallet can also replace with metal tray, when using metal tray, need place joint piece blank with ceramic paper, graphite paper or after smearing solder resist at lining on the described metal tray, then with metal tray together with the joint piece blank soldering mould of packing into.
Because in brazing process, brazing powder in the joint piece can melt fully, therefore must use the powder or the particle of the nonmetal temperature-resistant material that can not weld with brazing powder to cut apart and each monomer of fixed knot piece blank, the powder of the nonmetal temperature-resistant material that is adopted or particle are generally quartz sand and aluminium oxide.For the less joint piece of thickness,, also can adopt the way soldering of on joint piece surface, smearing solder resist as the joint piece of thickness below 1mm.And, should adopt the quartz sand of 10～1000# or alumina filled and cover for the joint piece of thickness greater than 1mm, with the warpage in brazing process that prevents to save piece, significant deformation such as flow and cave in, quartz sand and thickness alumina filled and that cover are not limit.The quartz sand or the aluminium oxide that cover on the joint piece can allow the joint piece be subjected to certain pressure, press to matrix, save like this in the heating process of piece in soldering oven, are close to all the time on the matrix, and the welding of envoy's piece and matrix is more firm.
In the manufacture method of aforementioned multi-layer diamond brazing body, the method for forming described in the step 2 is a slip casting, may further comprise the steps: take out the material powder and pour in the another one container, inject the bond that accounts for material powder gross weight 5～30%, fully stir and obtain the pasty state material; The pasty state material is poured in the elastic mould of making in advance, and adopt putty knife or pole to scrape the mode of smearing it to be entered and be full of and arrange each die cavity that is arranged in the elastic mould, and the pasty state material tamped or adopt compaction die, extrude the air in the die cavity, the institute that allows the pasty state material be full of in the die cavity has living space; Then adopt the method for natural air drying or vacuum that the pasty state material in the die cavity is carried out drying; And then in dried each die cavity, replenish a little pasty state material, and floating once more, carry out natural air drying or vacuum drying once more; So after the operation 1～10 time, just be full of the pasty state material in the die cavity of mould, treated the demoulding after the pasty state material dried cake, obtained multi-layer diamond joint piece blank.
Use in the above-mentioned slip casting to contain the higher pasty state material of quantity of solvent, and adopt the mode moulding of repeatedly filling, pushing, can guarantee that the joint piece blank that is obtained only has a spot of space as packing material; In addition, the metal and the graphite jig that often use in employed elastic mould and the existing sintering technology in this method of forming are different, have that easy making, cost are low, good springiness, quality is soft and the characteristics that can be repeatedly used; Once more, this method of forming is applicable to the less joint piece of joint piece blank, particularly size of making different shape, applied range.
Described elastic mould can be selected from silica gel mould, other rubber mold or adopt mould of plastics.Described bond refers generally to glue.
In the manufacture method of aforementioned multi-layer diamond brazing body, the method for forming described in the step 2 is a compression molding method, may further comprise the steps: take out the material powder and pour in the container, inject the bond that accounts for material powder gross weight 0.01～10%, fully stir and obtain loose material; Loose material is poured in the die cavity of metal die or graphite jig and carried out compression molding, obtain multi-layer diamond joint piece blank after the demoulding.
Above die pressing both can adopt the normal temperature mold pressing, also can adopt heating and mould pressing.
Adopt slip casting to make the most effective of joint piece, but the joint piece density minimum of making, the soldering after-contraction is big, and the product of generally suitable reduced size joint piece such as abrasive disc, mill, bowl mill etc. also are particularly suitable for making abrasive particle group.The joint piece density that adopts the normal temperature mold pressing to make is big, heating and mould pressing density maximum then.Product such as saw blade for large-size joint piece save piece, can select the normal temperature compression molding method for use, for needing shape and size to require accurate product, should adopt hot molding as products such as special-shaped emery wheels.
In order to be produced on diamond concentration on the axis direction, density difference, the joint piece of diamond concentration, Density Distribution homogeneous on the horizontal direction, can adopt slip casting to make joint piece blank thin slice earlier, the joint piece blank thin slice of getting different diamond distribution concentration then superposes, the die cavity of putting into metal die or graphite jig again carries out normal temperature or heating and mould pressing moulding, obtains multi-layer diamond joint piece blank after the demoulding.This method is particularly suitable for making saw blade joint piece.
For the multi-layer diamond brazing body product of making smallclothes, as make the bowl mill etc. that diameter is 100mm, can in the vacuum brazing process, once finish the soldering of joint piece self, reach the soldering between joint piece and the metallic matrix, therefore, step 3 and step 4 can use following step to replace: get metallic matrix, be the diamond block blank regularly arranged or irregular alignment ground is placed or is bonded to this metal base surface, obtain the product blank; With the product blank soldering mould of packing into, and in the soldering mould, charge into the powder or the particle of nonmetal temperature-resistant material, be used for to joint piece blank cut apart, fixing and apply certain pressure; Then above-mentioned soldering mould is put into vacuum brazing furnace, finish whole brazing process in vacuum or under inert gas or reducing gas protection; Take out the soldering mould with stove cooling back, pour out the powder or the particle that are filled in the nonmetal temperature-resistant material on the product blank, obtain the multi-layer diamond brazing body semi-finished product.
For further improving the industrial operation of this manufacture method, especially for the less product of joint piece size, can also be to the thin bonding agent layer of moulding joint piece surface applied one deck that is positioned at above-mentioned mold cavity, treat the demoulding again after this bonding agent layer drying, the joint piece in blocks of original mold shape that just can be maintained; Get a metallic matrix, then will save piece in flakes and place or be bonded on this metallic matrix, or will save in flakes and place or be bonded on this metallic matrix after piece is cut into definite shape as required, obtain the product blank.Like this, can reduce the fussy degree of operation greatly, and enhance productivity.
In above-mentioned steps, more tight for envoy's piece blank, firm with being connected of metallic matrix, can also smear brazing powder with joint piece blank bonding surfaces at described metallic matrix. for the ease of smearing brazing powder, can earlier brazing powder and bond be modulated into pasty state, adopt hairbrush to smear then.
In addition, can also utilize the multi-layer diamond brazing joint piece of fabrication techniques granularity of the present invention less than 10mm, be used as comprising the abrasive particle group of a plurality of diamond abrasive grains, then described abrasive particle rolled into a ball and disperseed to imbed in resin bed or the rubber layer, make polissoirs such as diamond-impregnated wheel or abrasive disc.
In the manufacture method of aforementioned multi-layer diamond brazing body,, can also comprise the step that in the material powder that step 1 obtains, adds the liquid wetting agent that accounts for material powder gross weight 0.01%～5% in order to strengthen the mixed effect of material powder; Described liquid wetting agent is generally selected atoleine for use.
The present invention has a purpose to provide a kind of multi-layer diamond brazing body that uses above-mentioned manufacture method to obtain in addition.
Multi-layer diamond brazing body, it is characterized in that: comprise a metallic matrix, the surperficial soldering of this metallic matrix has diamond brazings joint piece of several regularly arranged or irregular alignments, and regularly arranged or irregular alignment has two-layer at least diamond abrasive grain in the described diamond brazing joint piece.
The invention provides the manufacture method of a kind of low cost of manufacture, simple and reliable process, multi-layer diamond brazing body that repeatability is strong.The present invention adopts slip casting method or die pressing to make the diamond block blank, and method is simple, and is effective; Joint piece blank that is obtained or product blank adopt quartz sand or aluminium oxide to be fixed in the soldering mould, because quartz sand and aluminium oxide are unsetting, can be fit to make the joint piece of Any shape, and by the gentle cooling of adding of cyclelog control vacuum brazing furnace, finish whole brazing process, stable and controllable for quality.
In addition, even distribution in carcass of the multi-layer diamond brazing body that adopts method provided by the invention to produce, diamond abrasive grain, and interwoven can guarantee in the brazing body cutwork process, when the diamond abrasive grain of last layer wore away, the diamond abrasive grain of following one deck can in time go out sword.Multi-layer diamond brazing body merchandiser layer brazing body provided by the invention is the same, diamond abrasive grain is with the metallurgical binding that is combined into of carcass, therefore diamond abrasive grain goes out the sword height, when work, can take away a large amount of heats by a large amount of chip removals, this multi-layer diamond brazing body has high stock-removing efficiency, its operating efficiency is about 2 times of sintered products of same granularity, and be about 3 times of sintered products life-span of same working lining thickness its service life; Simultaneously, can also increase tank quantity, increase chip space, obtain better chip removal effect and air cooling effect by reducing to save the size of piece; In addition, the carcass material of joint piece has passed through vacuum brazing, reached fully and melted, joint piece good compactness, the good thermal conduction that causes carcass, a part of heat that working angles produces also can be dispelled the heat by tool base, therefore, the multi-layer diamond brazing instrument that adopts present technique to produce can carry out few water or not have water cut; In addition,, for the user, reduced labour intensity, improved operating efficiency, improved safety in utilization because the instrument made of this multi-layer diamond brazing body is sharp, the densification of joint piece, good toughness.
Description of drawings
Fig. 1 is the structural representation of the silica gel mould that is full of the joint piece of embodiment 1;
Fig. 2 is the cutaway view of the silica gel mould that is full of the joint piece of embodiment 1;
Fig. 3 is the structural representation of the joint piece in blocks after the demoulding of embodiment 1;
Fig. 4 is the cutaway view of the multi-layer diamond brazing bowl mill of embodiment 1;
Fig. 5 is the multi-layer diamond brazing saw-blade structure schematic diagram of embodiment 2;
Fig. 6 is the cylinder emery wheel cutaway view with multi-layer diamond brazing abrasive particle group of embodiment 3;
Fig. 7 is that embodiment 4 is multi-layer diamond brazing soft abrasive disk structural representation;
Fig. 8 is that embodiment 4 is multi-layer diamond brazing soft abrasive disk cutaway view.
Fig. 9 is that embodiment 5 is multi-layer diamond brazing abnormity emery wheel cutaway view.
The specific embodiment
Present embodiment discloses a kind of preparation method of multi-layer diamond brazing bowl mill:
1) is to get the raw materials ready at 100: 5 brazing powder and diamond abrasive grain according to weight ratio, in the container of packing into, adds the atoleine of pan feeding grain weight amount about 1%, adopt batch mixer to mix, obtain the material powder;
2) get a container, pour the material powder at 100: 15 and, fully stir and obtain homodisperse pasty state material as the glue of bond according to weight ratio;
3) the pasty state material that obtains in the step 2 is poured into silica gel mould as shown in Fig. 1 and Fig. 2, and adopt putty knife or pole to scrape the mode of smearing it to be entered and the shape of cross section that is full of in the silica gel mould 1 is each trapezoidal die cavity, then use banister brush that the pasty state material is beaten compacting, extrude the air in the die cavity, natural air drying; In dried each die cavity, replenish a little pasty state material again, and floating once more, natural air drying; After 5 times, just be full of the pasty state material in each die cavity of silica gel mould so repeatedly, formed the joint piece blank 2 that is arranged with at least 5 layers of diamond abrasive grain after the pasty state material drying;
4) as shown in Figure 3,, treat the demoulding again after this glue layer drying, just obtain keeping the ring-type of original silica gel mould shape to save piece in flakes at the thin glue of surface applied one deck of drying joint piece blank 2; Get a slice video disc shape metallic matrix 3, evenly smear brazing powder, ring-type is saved the top that piece directly is placed on metallic matrix 3 in flakes, obtain the product blank at its solder side with the joint piece;
5) the product blank is packed in the mould, and to charge into granularity simultaneously in mould be 10～400
#Quartz sand, make its gap that is full of the joint interblock, cover the outer surface of joint piece, be used for the joint piece is cut apart and fixed; Above-mentioned mould is put into vacuum brazing furnace, and program is heated to brazing powder and melts back welding diamond abrasive grain fully, simultaneously, the joint piece also is welded on the matrix, take out with stove cooling back, pour out the quartz sand that is filled in the product blank, just obtained the semi-finished product of multi-layer diamond brazing body;
6) semi-finished product that obtain in the step 6 put the first edge on a knife or a pair of scissors, obtain behind the reconditioning surface multi-layer diamond brazing bowl mill as shown in Figure 4.
As shown in Figure 4, multi-layer diamond brazing bowl mill, comprise metallic matrix 3, it is trapezoidal diamond brazing joint piece 2 that several regularly arranged cross sectional shapes are fixed in the upper surface soldering of this metallic matrix 3, contains at least 5 layers diamond abrasive grain in the diamond brazing joint piece 2.Be equipped with a tank between every adjacent two diamond blocks 2.
Present embodiment discloses a kind of preparation method of multi-layer diamond brazing saw blade:
What the step 1 of present embodiment～3 were different with step 1～3 of embodiment 1 is that present embodiment adopts the normal temperature compression molding when implementing, obtain being of a size of the joint piece blank that is arranged with at least 3 layers of diamond abrasive grain of 40 * 10 * 3.6mm.
In addition, when present embodiment is being implemented, also can adopt slip casting to make different diamond concentration blank joint pieces earlier, then according to the order of high concentration-low concentration-high concentration, the mould of the stack of 3 blank joint pieces being put into steel carries out the normal temperature compression molding again, obtain being arranged with the joint piece blank of at least 3 layers of diamond abrasive grain, adamantine concentration is different, identical in the horizontal direction on axis direction.
4) above joint piece blank 2 is placed on a lining with in the soldering mould of packing into after on the sheet metal of graphite paper, and to charge into granularity simultaneously in the soldering mould be 16～600
#Quartz sand; Above-mentioned mould is put into vacuum brazing furnace, be heated to brazing powder fusing back welding diamond abrasive grain, take out, pour out the quartz sand that is filled in the product blank, obtain containing the soldering joint piece 2 of at least 3 layers of diamond abrasive grain with stove cooling back;
5) with after the multi-layer diamond brazing joint piece reconditioning that obtains in the step 4, adopt the periphery of laser weld, obtain multi-layer diamond brazing saw blade semi-finished product at the saw blade metallic matrix;
6) the multi-layer diamond brazing saw blade semi-finished product that obtain in the step 5 put the first edge on a knife or a pair of scissors, obtain behind the reconditioning surface multi-layer diamond brazing saw blade product as shown in Figure 5.
As shown in Figure 5, the multi-layer diamond brazing saw blade, comprise diamond block 2 and saw blade metallic matrix 4, several regularly arranged diamond brazing joint pieces 2 are fixed in the periphery welding of this saw blade metallic matrix 4, contain at least 3 layers diamond abrasive grain in the diamond brazing joint piece 2.Be equipped with a tank between every adjacent two diamond blocks 2.
Embodiment 3
Present embodiment provides a kind of manufacture method with cylinder emery wheel of multi-layer diamond brazing abrasive particle group:
What the step 1 of present embodiment～4 were different with step 1～4 of embodiment 2 is, present embodiment is when implementing, adopting the die cavity cross section is orthohexagonal silica gel mould, and after the joint block brazing, obtaining granularity is the soldering joint piece 2 that is arranged with at least 3 layers of diamond abrasive grain of 3.5mm.
5) be that the soldering joint piece 2 of 3.5mm is as abrasive particle group with granularity, put into mould, adopt epoxy resin 5 cast to infiltrate and coating abrasive particle group, while resin 5 bonding revolving body pedestals 6, resin 5 solidifies the back and obtains semi-finished product, puts the first edge on a knife or a pair of scissors, obtains behind the reconditioning surface cylinder emery wheel with multi-layer diamond brazing abrasive particle group as shown in Figure 6 again.
Embodiment 4
Present embodiment provides a kind of manufacture method of multi-layer diamond brazing soft abrasive disk:
The different of the step 1 of present embodiment～6 and embodiment 1 step 1～6 are that joint piece blank 2 is placed on 16～70
#Stainless steel mesh disk 7 on, get a steel die then, graphite paper on the pad of bottom, allow joint piece blank 2 up, stainless steel mesh disk 7 down, be placed in the mould on the graphite paper, mould is put into vacuum drying oven and is carried out soldering afterwards, so just obtains saving the multi-layer diamond brazing soft abrasive disk semi-finished product of block brazing on stainless steel mesh disk 7;
7) get another metal die, half-finished joint piece is put into corresponding to the corresponding die cavity of mould, on stainless steel mesh disk 7, add the natural rubber material, the heating pressurization makes the natural rubber material softening and flows and be full of the interior space, die cavity everywhere of mould, makes rubber layer 8 cover the outer surface of each joint piece; Rubber solidifies coating joint piece and stainless steel mesh disk 7, and take out from mould the cooling back, just obtains multi-layer diamond brazing soft abrasive disk first product; Then put the first edge on a knife or a pair of scissors in its surface and modify, bonding velcro 9 obtains the rubber-like multi-layer diamond brazing soft abrasive disk as shown in Fig. 7 and Fig. 8 on its back side.
Embodiment 5
Present embodiment discloses a kind of preparation method of multi-layer diamond brazing abnormity emery wheel:
What the step 1 of present embodiment～4 were different with step 1～4 of embodiment 1 is, characteristics according to the strictness of special-shaped emery wheel shape need, adopt the heating and mould pressing moulding, directly the product blank is made in the loose material compacting on profiled metal matrix 10, obtain covering the joint piece blank 2 on profiled metal matrix 10 surfaces, contain at least 2 layers diamond abrasive grain in the joint piece blank 2.
5) adopt hydraulic press to be pressed into one above product blank and be full of 325
#In the mould of aluminium oxide, put into vacuum brazing furnace then, be heated on brazing powder fusing back welding diamond abrasive grain and the profiled metal matrix 10, take out, pour out aluminium oxide, contained the soldering emery wheel semi-finished product of 2 layers of diamond abrasive grain at least with stove cooling back; Because be to adopt hydraulic press to push, the aluminium oxide in the mould is very big to the pressure on emery wheel surface, has so just guaranteed that emery wheel is very little at the brazing process deflection.
6) the multi-layer diamond brazing emery wheel semi-finished product that obtain in the step 4 put the first edge on a knife or a pair of scissors, obtain behind the reconditioning surface multi-layer diamond brazing abnormity emery wheel product as shown in Figure 9.
As shown in Figure 9, multi-layer diamond brazing abnormity emery wheel, comprise a profiled metal matrix 10, the outer surface soldering of this profiled metal matrix 10 has several regularly arranged diamond brazing joint pieces 2, contains at least 2 layers diamond abrasive grain in this diamond brazing joint piece 2.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the manufacture method of multi-layer diamond brazing body may further comprise the steps:
1) batch mixing: with weight ratio is that 100: 1～30 brazing powder and diamond abrasive grain are packed in the airtight container, adopts batch mixer evenly to mix, and obtains the material powder;
2) the above-mentioned material powder employing method of forming is made the multi-layer diamond joint piece blank that rule or irregular alignment have two-layer at least diamond abrasive grain;
3) get a pottery or graphite pallet, above-mentioned joint piece blank is placed on the pallet, then with pallet together with the joint piece blank soldering mould of packing into, and in the soldering mould, charge into the powder or the particle of nonmetal temperature-resistant material, be used for to joint piece blank cut apart, fixing and apply certain pressure; Above-mentioned soldering mould is put into vacuum brazing furnace, finish whole brazing process in vacuum or under the protection of inert gas or reducing gas; Take out the soldering mould with stove cooling back, pour out the powder or the particle that are filled in the nonmetal temperature-resistant material on the pallet, obtain the soldering joint piece that rule or irregular alignment have two-layer at least diamond abrasive grain;
4) with the block welding of the soldering that obtains joint on metallic matrix or disperse to be embedded in resin or the rubber layer, obtain the multi-layer diamond brazing body semi-finished product;
5) the multi-layer diamond brazing body semi-finished product that obtain in the step 4 are put the first edge on a knife or a pair of scissors on grinding machine, modify, obtain the multi-layer diamond brazing body product.
2. according to the manufacture method of the multi-layer diamond brazing body described in the claim 1, it is characterized in that: the nonmetal temperature-resistant material that adopts in the step 3 is quartz sand or aluminium oxide, granularity 10～1000
#
3. according to the manufacture method of the multi-layer diamond brazing body described in the claim 1, it is characterized in that: the method for forming described in the step 2 is a slip casting, may further comprise the steps: take out the material powder and pour in the another one container, the bond that injection accounts for material powder gross weight 5～30% fully stirs and obtains the pasty state material; The pasty state material is poured in the elastic mould of making in advance, and adopt putty knife or pole to scrape the mode of smearing it to be entered and be full of and arrange each die cavity that is arranged in the elastic mould, and the pasty state material tamped or adopt compaction die, extrude the air in the die cavity, the institute that allows the pasty state material be full of in the die cavity has living space, and then adopts the method for natural air drying or vacuum that the pasty state material in the die cavity is carried out drying; And then in dried each die cavity, replenish a little pasty state material, and floating once more, carry out natural air drying or vacuum drying once more; So after the operation 1～10 time, just be full of the pasty state material in the die cavity of mould, treated the demoulding after the pasty state material dried cake, obtained multi-layer diamond joint piece blank.
4. according to the manufacture method of the multi-layer diamond brazing body described in the claim 1, it is characterized in that, the method of forming described in the step 2 is a compression molding method, may further comprise the steps: take out the material powder and pour in the container, the bond that injection accounts for material powder gross weight 0.01～10% fully stirs and obtains loose material; Loose material is poured in the die cavity of metal die or graphite jig and carried out normal temperature or heating and mould pressing moulding, obtain multi-layer diamond joint piece blank after the demoulding.
5. according to the manufacture method of the multi-layer diamond brazing body described in the claim 1, it is characterized in that, pottery described in the step 3 or graphite pallet adopt metal tray to replace: place joint piece blank with ceramic paper, graphite paper or after smearing solder resist at lining on the described metal tray, then with metal tray together with the joint piece blank soldering mould of packing into.
6. according to the manufacture method of the multi-layer diamond brazing body described in the claim 1, it is characterized in that: to be scattered in the concrete steps of resin bed or rubber layer as follows: the abrasive particle group that is used as comprising a plurality of diamond abrasive grains with granularity less than the multi-layer diamond brazing joint piece of 10mm for the piece that multi-layer diamond brazing is saved described in the step 4, then described abrasive particle is rolled into a ball and disperseed to imbed in resin bed or the rubber layer, make diamond-impregnated wheel or abrasive disc.
7. according to the manufacture method of the multi-layer diamond brazing body described in claim 1 or 3 or 4, it is characterized in that: step 3 and step 4 can use following step to replace: get metallic matrix, be the diamond block blank regularly arranged or irregular alignment ground is placed or is bonded to this metal base surface, obtain the product blank; With the product blank soldering mould of packing into, and in the soldering mould, charge into the powder or the particle of nonmetal temperature-resistant material, be used for to joint piece blank cut apart, fixing and apply certain pressure; Then above-mentioned soldering mould is put into vacuum brazing furnace, finish whole brazing process in vacuum or under inert gas or reducing gas protection; Take out the soldering mould with stove cooling back, pour out the powder or the particle that are filled in the nonmetal temperature-resistant material on the product blank, obtain the multi-layer diamond brazing body semi-finished product.
8. according to the manufacture method of the multi-layer diamond brazing body described in claim 3 or 4, it is characterized in that: be positioned at the thin bonding agent layer of moulding joint piece surface applied one deck of mold cavity, treat the demoulding again after this bonding agent layer drying, the joint piece in blocks of original mold shape that just can be maintained; Get a metallic matrix, then will save piece in flakes and place or be bonded on this metallic matrix, or will save in flakes and place or be bonded on this metallic matrix after piece is cut into definite shape as required, obtain the product blank.
9. according to the manufacture method of the multi-layer diamond brazing body described in the claim 1, it is characterized in that, also comprise the step that in the material powder that step 1 obtains, adds the liquid wetting agent that accounts for material powder gross weight 0.01%～5%; Described liquid wetting agent is generally selected atoleine for use.
10. multi-layer diamond brazing body, it is characterized in that: comprise a metallic matrix, the surperficial soldering of this metallic matrix has diamond brazings joint piece of several regularly arranged or irregular alignments, and regularly arranged or irregular alignment has two-layer at least diamond abrasive grain in the described diamond brazing joint piece.
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| CN200910112028A CN101704277B (en) | 2009-06-12 | 2009-06-12 | Manufacture method of multi-layer diamond brazing body |
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| CN200910112028A CN101704277B (en) | 2009-06-12 | 2009-06-12 | Manufacture method of multi-layer diamond brazing body |
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| CN101704277B CN101704277B (en) | 2012-10-03 |
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| CN101862834A (en) * | 2010-05-18 | 2010-10-20 | 卜长根 | One-step molded multilayer brazed diamond drill bit |
| CN102323214A (en) * | 2011-07-22 | 2012-01-18 | 福建万龙金刚石工具有限公司 | A kind of production technology of diamond cutter |
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| CN104875132A (en) * | 2015-04-29 | 2015-09-02 | 上海科弗新材料科技有限公司 | Brazed superhard grinding tool and production method thereof |
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| US6039641A (en) * | 1997-04-04 | 2000-03-21 | Sung; Chien-Min | Brazed diamond tools by infiltration |
| CN201151217Y (en) * | 2007-12-07 | 2008-11-19 | 徐州华谐科技发展有限公司 | Brazed and sintered multilayer diamond tools for optimizing arrangement of abradant |
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| CN101862834A (en) * | 2010-05-18 | 2010-10-20 | 卜长根 | One-step molded multilayer brazed diamond drill bit |
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| CN104875132B (en) * | 2015-04-29 | 2018-05-15 | 上海科弗新材料科技有限公司 | The preparation method and Study on Brazed Superabrasive Tools of Study on Brazed Superabrasive Tools |
| CN104875132A (en) * | 2015-04-29 | 2015-09-02 | 上海科弗新材料科技有限公司 | Brazed superhard grinding tool and production method thereof |
| CN105014554A (en) * | 2015-05-25 | 2015-11-04 | 江苏锋泰工具有限公司 | Manufacturing method for light and efficient diamond grinding wheel |
| CN105880770A (en) * | 2016-04-01 | 2016-08-24 | 中国电子科技集团公司第三十八研究所 | Protection process of antenna welding surface |
| CN106881671A (en) * | 2017-02-24 | 2017-06-23 | 蓝思科技（长沙）有限公司 | A kind of multi-layered brazing diamond tool and preparation method thereof |
| CN106881671B (en) * | 2017-02-24 | 2020-01-17 | 蓝思科技（长沙）有限公司 | Multilayer brazing diamond tool and preparation method thereof |
| CN108789189A (en) * | 2018-07-12 | 2018-11-13 | 华侨大学 | A kind of preparation process of brazed multilayer diamond tool |
| CN111230247A (en) * | 2020-01-16 | 2020-06-05 | 襄阳航泰动力机器厂 | Wide-gap brazing weld joint shape control method |
| CN114571025A (en) * | 2022-04-01 | 2022-06-03 | 嘉兴沃尔德金刚石工具有限公司 | Method for drilling diamond brazing grinding wheel |
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| CN101704277B (en) | 2012-10-03 |
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Address after: 361012 1-18F building, 261 Jiahe Road, Xiamen, Fujian, Wuhan Patentee after: Xiamen Dongnan new tool manufacturing Co., Ltd. Address before: 361012 1-18F building, 261 Jiahe Road, Xiamen, Fujian, Wuhan Patentee before: Xiamen Dongnan Stone Tools Co., Ltd. |
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