Annular super-hard abrasive wire
Technical field
The utility model relates to precious metal, semiconductor and non-conductor cutting tool, specifically a kind of annular super-hard abrasive wire.
Background technology
The crisp and hard material hardness such as silicon materials, sapphire, pottery are high, and fragility is large, and in cutting process, easily generation is collapsed broken bad, causes the damage of material, reduce yield rate, and therefore these materials are difficult to adopt common processing method cutting.Traditional semi-conducting material, ceramic material cutting adopts diamond inner circle, cylindrical cutting technique, band-saw diamond usually.Along with the development of semicon industry, the diameter of monocrystal silicon is increasing, has now reached 450 millimeters, and polycrystal silicon ingot also has 800 millimeters.Main employing band saw cutting is at present blocked, butt, and cutting efficiency is high, but joint-cutting is wide, cutting surfaces out-of-flatness.
Based on the problems referred to above, diamond fretsaw progressively produces, and this technology diamond is cemented in Steel Wire Surface by modes such as resin, electro-deposition, punching presses and becomes diamond fretsaw.In concrete utilization, the problems such as it is wide that diamond fretsaw exists joint-cutting when cutting operation, and efficiency is low, and cutting surfaces is of poor quality.
The publication number applied for before the applicant is the preparation method that the patent of invention of CN102873401A discloses a kind of annular super-hard abrasive wire and this annular super-hard abrasive wire, described annular super-hard abrasive wire comprises the silk rope of 0.1mm ~ 6mm, with the coat that the superabrasive particles and consolidation superabrasive particles that are cemented in silk rope surface use, described silk rope is the six strand filaments (specification 1 × 7) of twisting on heart yearn, the two ends heart yearn of silk rope connects, two ends strand correspondence braiding is welded together to form annular silk rope, the joint of each strand is all divided into heart yearn contact both sides, or each strand joint is all divided into heart yearn contact side.Its preparation method is: the annular first filament rope being compiled into any girth, then by the method for coating, superabrasive particles is cemented in annular silk rope surface, namely obtains annular super-hard abrasive wire.The described annular super-hard abrasive wire of this invention solves that the joint-cutting existed in prior art is at that time wide, efficiency is low preferably, the ropy problem of cutting surfaces, but, because the described annular super-hard abrasive wire of this invention is that weaving welding multiply strand is formed on heart yearn, this must cause formed silk rope having multiple tie point (having how many strands of strands namely to have how many tie points to produce), but, when an annular super-hard abrasive wire exists more tie points, the fatigue resistance of this annular super-hard abrasive wire is lower.The termination in this annular super-hard abrasive wire service life all can be caused when wherein row are broken in any strand outlet.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of joint-cutting is narrow, efficiency is high, cutting surfaces quality is good and the annular super-hard abrasive wire that fatigue resistance is high.
Annular super-hard abrasive wire described in the utility model, its matrix is silk rope, described silk is restricted end to end formation ring-type, superabrasive particles isotropic consolidation becomes ultrahard abrasive layer in described silk rope surface, described ultrahard abrasive layer is individual particle thick layer, unlike the prior art: described silk rope comprises a heart yearn and is wound in one strand on this heart yearn in a spiral manner, the head and the tail of described heart yearn are connected to form ring-type, the length being wound in the strand on described heart yearn is meet the length that it is wound around 6 circles on described heart yearn, after described strand is wound around 6 circles on described heart yearn, its head and the tail connect, the joint of described strand is positioned at the side of core wire attachment point.
In technical scheme described in the utility model, described strand is wound around 6 circles and refers to heart yearn to be axle on described heart yearn, the head end of strand is wound around in a spiral manner from certain on heart yearn, until count a circle when being again wound to this place on heart yearn, repetition like this, until strand is wound around 6 circles on heart yearn.The utility model adopts a sufficiently long strand with heart yearn, and for the axle matrix be wound around obtained by 6 circles only has 2 tie points, (one of them is the joint of strand, another is the tie point of heart yearn), compared with prior art, ensureing that gained annular super-hard abrasive wire joint-cutting is narrow, efficiency is high, the measured number simultaneously greatly reducing tie point of cutting surfaces matter, effectively improve the fatigue resistance adopting annular super-hard abrasive wire obtained based on this matrix, namely effectively improve the service life of gained annular super-hard abrasive wire.On the other hand, the joint of strand is arranged at the side (namely the joint of strand and the tie point of heart yearn do not coincide) of the tie point of heart yearn, further increasing the fatigue resistance of obtained annular super-hard abrasive wire.
In technical scheme described in the utility model, in order to make gained annular super-hard abrasive wire obtain the highest fatigue resistance, preferably the head end of strand is wound around in a spiral manner from the midpoint of heart yearn, until count a circle when being again wound to the mid point of heart yearn.
In technical scheme described in the utility model, when strand is wound on heart yearn in a spiral manner, described strand often rotates a circle around heart yearn and is defined as a joint strand, and in same circle, the periphery wall of adjacent two joint strands contacts, order arrangement, but pressure is not folded mutually; Strand is wound on heart yearn after 6 circles, and the periphery wall of two adjacent rings strand contacts, order arrangement.
In technique scheme, the kind of described superabrasive particles and the selection of particle diameter all same as the prior art.Particularly, the kind of institute's superabrasive particles is with the diamond of washing layer, cubic boron nitride or B
6o.The thickness of described washing layer is same as the prior art, it can be specifically 1 μm ~ 10 μm, metal in coat comprise in gold, silver, nickel, zinc, lead, copper, tin, titanium, tantalum, chromium and zirconium one or more, the alloy of aforementioned every metal can also be comprised.The particle diameter of described superabrasive particles can be 5 μm ~ 500 μm.
In technique scheme, described ultrahard abrasive layer can be pantostrat or interrupted layer.Under normal circumstances, described superabrasive particles is embedded in the degree of depth of ultrahard abrasive layer is 1/3 ~ 2/3 of superabrasive particles particle diameter.
In technique scheme, described strand is same as the prior art, can be specifically wire or nonmetal wire.Described nonmetal wire can be the line that natural fiber or composite fibre materials are made, and more specifically, can be the line adopting existing carbon fiber, nylon, aramid fiber, polyester, cotton synthetic fibre or glass to make.Preferred employing diameter is wire or the nonmetal wire of 0.01mm ~ 1mm.As long as the length of described strand is enclosed for being wound around described heart yearn 6, in general, the length of described strand is generally 6 ~ 6.5 times of heart yearn length, or more than 6.5 of heart yearn length times, after winding 6 is enclosed, as strand also has longer section surplus, then need severing to cut surplus accordingly, the head and the tail two ends of strand are connected.
In technique scheme, the silk rope of described matrix silk rope can be specifically diameter be 0.1mm ~ 6mm.
Compared with prior art, feature of the present utility model is:
1, the matrix that the utility model adopts a sufficiently long strand with heart yearn to be wound around obtained by 6 circles for axle only has 2 tie points (one of them is the tie point of strand, another is the tie point of heart yearn), compared with prior art, ensureing that gained annular super-hard abrasive wire joint-cutting is narrow, efficiency is high, the measured number simultaneously greatly reducing tie point of cutting surfaces matter, effectively improve the fatigue resistance adopting annular super-hard abrasive wire obtained based on this matrix, namely effectively improve the service life of gained annular super-hard abrasive wire.On the other hand, the joint of strand is arranged at the side (namely the joint of strand and the tie point of heart yearn do not coincide) of the tie point of heart yearn, further increasing the fatigue resistance of obtained annular super-hard abrasive wire.
2, use annular super-hard abrasive wire described in the utility model, precious metal, conductor, semiconductor, non-conductive material can be cut in conjunction with annular wire cutting machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of annular super-hard abrasive wire described in the utility model, is shown as continuous print ultrahard abrasive layer;
Fig. 2 is the schematic cross-section of Fig. 1 illustrated embodiment;
Fig. 3 is that described strand is wound in the schematic diagram on heart yearn when making annular super-hard abrasive wire described in the utility model.
Number in the figure is:
1 annular super-hard abrasive wire; 2 heart yearns; 3 strands; 4 superabrasive particles; 5 ultrahard abrasive layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, to understand content of the present utility model better.
Annular super-hard abrasive wire 1 described in the utility model, the silk rope of its matrix to be diameter be 0.1mm ~ 6mm, described silk rope comprises a heart yearn 2 and is wound in one strand 3 (i.e. 1 × 1 rope) on this heart yearn 2 in a spiral manner, the head and the tail of described heart yearn 2 are connected to form ring-type, the length being wound in the strand 3 on described heart yearn 2 is meet the length that it is wound around 6 circles on described heart yearn 2, and after described strand 3 is wound around 6 circles on described heart yearn 2, its head and the tail are connected to form annular silk rope (joint of described strand 3 is positioned at the side of heart yearn 2 tie point); Wherein, described strand 3 is wound around 6 circles and refers to heart yearn 2 as axle on described heart yearn 2, by the head end of strand 3, from certain on heart yearn 2, (this is not the tie point of heart yearn 2, preferably be wound around from the midpoint of heart yearn 2) start to be wound around in a spiral manner, until count a circle when being again wound to this place on heart yearn 2, repetition like this, until strand 3 is wound around 6 circles on heart yearn 2; In same circle, the periphery wall of adjacent two joint strands 3 contacts with each other and order arrangement, and pressure is not folded mutually; After strand 3 to be wound on heart yearn 26 circles, the periphery wall of two adjacent rings strand 3 contacts with each other, order arrangement, go up simultaneously one enclose in next adjacent with this circle of strand 3 enclose strand 3 and there is not phenomenon that is interspersed, clamping.Superabrasive particles 4 isotropic consolidation becomes ultrahard abrasive layer 5 in described silk rope surface, and described ultrahard abrasive layer 5 is individual particle thick layer, and described ultrahard abrasive layer 5 is pantostrat (as shown in Figure 1), also can be interrupted layer.
In technique scheme, the kind of described superabrasive particles 4 and the selection of particle diameter all same as the prior art.Particularly, the kind of institute's superabrasive particles 4 can be with the diamond of washing layer, cubic boron nitride or B
6o.The thickness of described washing layer is same as the prior art, it can be specifically 1 μm ~ 10 μm, metal in coat comprise in gold, silver, nickel, zinc, lead, copper, tin, titanium, tantalum, chromium and zirconium one or more, the alloy of aforementioned every metal can also be comprised.The particle diameter of described superabrasive particles 4 can be 5 μm ~ 500 μm.
In technique scheme, the degree of depth that described superabrasive particles 4 is embedded in ultrahard abrasive layer 5 is 1/3 ~ 2/3 of superabrasive particles 4 particle diameter.
In technique scheme, described strand 3 is same as the prior art, can be specifically wire or nonmetal wire.Described nonmetal wire can be the line that natural fiber or composite fibre materials are made, and more specifically, can be the line adopting existing carbon fiber, nylon, aramid fiber, polyester, cotton synthetic fibre or glass to make.Preferred employing diameter is wire or the nonmetal wire of 0.01mm ~ 1mm.
In technique scheme, selected wire or nonmetal wire comprise all specifications of international Steel Cable Standard defined as the silk rope that strand 3 is made.
Fig. 1 is the structural representation of annular super-hard abrasive wire described in the utility model 1 one kinds of embodiments, in the embodiment shown in Fig. 1, described strand 3 is wound around from the midpoint of heart yearn 2, the silk rope of the matrix of annular super-hard abrasive wire 1 to be diameter be 1.5mm, heart yearn 2 diameter forming silk rope is 0.5mm, the nonmetal wire that strand 3 is made for carbon fiber, its diameter is 0.5mm, and the length of strand 3 is 6 times of heart yearn 2 length.The kind of the superabrasive particles 4 adopted is the diamond with nickel coat (nickel coat thickness is 2 μm ~ 5 μm), its particle diameter is 100 μm ~ 200 μm, the degree of depth that described superabrasive particles 4 is embedded in ultrahard abrasive layer 5 is 1/3 ~ 2/3 of superabrasive particles 4 particle diameter, as shown in Figure 2.In Fig. 1, with the three joint strands 3 that 330,320 and 310 representatives are adjacent in same circle, this three joints strand 3 order arranges and pressure is folded mutually, wherein the 320 joint periphery walls of strands 3 and 330 periphery walls saving strand 3 adjacent on the left of it contact with each other, and contact with the periphery wall that 310 on the right side of it saves strand 3.
Make the method for annular super-hard abrasive wire 1 described in the utility model, comprise the following steps
1) get the heart yearn 2 of Len req, connected at the head and the tail two ends of heart yearn 2, polishing joint is to original diameter, then get a length and meet the strand 3 (its length can be 6 ~ 6.5 times of described heart yearn 2 length) that it is wound around 6 circles on described heart yearn 2, with heart yearn 2 for axle, described strand 3 is wound on described heart yearn 2 (winding process as shown in Figure 3), specifically the head end of described strand 3 is wound around in a spiral manner from certain of heart yearn 2, until count a circle when being again wound to this place on heart yearn 2 (when strand 3 is wound on heart yearn 2 in a spiral manner, the periphery wall of adjacent two joint strands 3 contacts with each other, order arrangement, and the phenomenon that pressure is not folded mutually.With the three joint strands 3 that 330,320 and 310 representatives are adjacent in difference circle in Fig. 3, wherein the periphery wall that saves of strand 3320 and the periphery wall that saves of strand 3330 adjacent on the left of it contact with each other, and contact with the periphery wall that the strand 3310 on the right side of it saves), repetition like this, until strand 3 be wound around on heart yearn 26 circle after, the head and the tail two ends of strand 3 are connected, the joint at described strand 3 head and the tail two ends is positioned at the side (not overlapping with the tie point of heart yearn 2) of heart yearn 2 tie point, forms ring-type silk rope;
2) surface that annular silk is restricted is processed, comprise and carry out conventional oil removing, rust cleaning, activation and impact the process such as nickel;
3) superabrasive particles 4 is consolidated in annular silk rope surface to form ultrahard abrasive layer 5, obtains described annular super-hard abrasive wire 1.
The step 1 of above-mentioned preparation method) in, the silk rope of described matrix silk rope can be specifically diameter be 0.1mm ~ 6mm.Described strand 3 is same as the prior art, can be specifically wire or nonmetal wire.Described nonmetal wire can be the line that natural fiber or composite fibre materials are made, and more specifically, can be the line adopting existing carbon fiber, nylon, aramid fiber, polyester, cotton synthetic fibre or glass to make.Preferred employing diameter is wire or the nonmetal wire of 0.001mm ~ 1mm.
The step 3 of above-mentioned preparation method) in, the kind of described superabrasive particles 4 and the selection of particle diameter all same as the prior art.Particularly, the kind of institute's superabrasive particles 4 can be with the diamond of washing layer, cubic boron nitride or B
6o.The thickness of described washing layer is same as the prior art, it can be specifically 1 μm ~ 10 μm, metal in coat comprise in gold, silver, nickel, zinc, lead, copper, tin, titanium, tantalum, chromium and zirconium one or more, the alloy of aforementioned every metal can also be comprised.The particle diameter of described superabrasive particles 4 can be 5 μm ~ 500 μm.
The step 3 of above-mentioned preparation method) in, described consolidation style is soldering, electro-deposition, coating or sintering.When the strand 3 in silk rope structure is nonmetal wire, and when selecting to adopt the mode of electro-deposition superabrasive particles 4 to be consolidated on silk rope, before electro-deposition, preferably first conventional chemical plating process is carried out to silk rope.
When the annular super-hard abrasive wire 1 of structure shown in construction drawing 1, strand 3 is wound around from the midpoint of heart yearn 2, until be again wound around until midpoint on heart yearn 2 time count a circle.Select diameter be the heart yearn 2 of 0.5mm as matrix, adopt the nonmetal wire be made up of carbon fiber as strand 3, the diameter of strand 3 be 0.5mm and, the length of strand 3 is 6 times of heart yearn 2 length.The kind of the superabrasive particles 4 adopted is the diamond with nickel coat (nickel coat thickness is 2 μm ~ 5 μm), its particle diameter is 100 μm ~ 200 μm, and the degree of depth that control superabrasive particles 4 is embedded in ultrahard abrasive layer 5 is 1/3 ~ 2/3 of superabrasive particles 4 particle diameter.