Small-diameter diamond wire saw

Abstract

The utility model relates to the technical field of diamond wire saw manufacturing, in particular to a small-diameter diamond wire saw. The small-diameter diamond wire saw comprises a steel wire rope and a plurality of sets of beads fixedly arranged on the steel wire rope in a sleeving mode, each set of beads comprises at least one thick ring and at least one thin ring, the outer diameters of the thick rings and the outer diameters of the thin rings are the same, the thickness of the thick rings is 2-5 times that of the thin rings, and the thick rings and the thin rings are arranged on the steel wire rope at intervals. And the thick rings and the thin rings of the plurality of groups of beads are fixedly connected with the steel wire rope through injection molding layers. According to the small-diameter diamond wire saw provided by the utility model, the thick ring and the thin ring are combined, so that the service life of a product can be ensured, and meanwhile, the cutting efficiency is high. The bead string does not contain a base body, so that the production process is simple, and the bead string is produced in a modular manner of combining thickness and thickness, so that the consistency and durability of the product are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to diamond rope saw preparation technical field, specifically to a kind of small diameter diamond rope saw. BACKGROUND

[0002] Diamond rope saw is a kind of flexible superhard material tool, is widely used in mining, stone processing, building bridge demolition, ocean salvage and other industries, and the main role of diamond bead is to consolidate diamond abrasive particles, and realize efficient grinding in sawing.

[0003] The existing diamond rope saw preparation method mainly has sintering method, brazing method, electroplating method. Diamond bead of large diameter 10mm-15mm is usually prepared by sintering method and brazing method, sintering method is to uniformly mix or granulate diamond and selected matrix powder by adopting the principle of powder metallurgy, but sintering method is to be sintered after being combined with matrix, although production efficiency is high, and process is simple, but diamond edge is low, cutting efficiency is low, and size is large due to matrix. The principle of brazing method is to generate mutual action such as melting, infiltration, diffusion and combination at the interface of abrasive, filler metal and matrix during brazing, and the method makes diamond and matrix have high bonding strength, long service life, large diamond bead abrasive particle edge thickness, large chip capacity, low grinding temperature and high cutting efficiency. Small diameter diamond is usually manufactured by electroplating method, but the plating layer for consolidating diamond abrasive particles is too thin by electroplating method, and the holding force of plating layer on diamond abrasive particles is limited, so that diamond abrasive particles are easily detached in advance. At present, the main technical bottleneck encountered in the production process of diamond bead, especially for bead below 5.0mm, has to face problems such as high production cost, poor sharpness and short bead service life, which will greatly restrict the development of small diameter diamond bead. SUMMARY

[0004] The utility model aims at overcoming above technical problem and proposes a kind of small diameter diamond rope saw with high universality, long service life and good sharpness.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of small diameter diamond rope saw, including steel wire rope and the fixed sleeve of multiple groups of beads on steel wire rope, the group of beads includes at least one thick ring and at least one thin ring, the outer diameter of thick ring and thin ring is same, and the thickness of thick ring is 2-5 times of thin ring thickness, thick ring and thin ring are arranged at intervals on steel wire rope, and the thick ring, thin ring of multiple groups of beads and steel wire rope are fixedly connected by injection molding layer.

[0006] Further, the outer diameter of thick ring and thin ring is 2-10mm, and the inner diameter is 1-5mm.

[0007] Further, the thickness of the thick ring is 2-5mm, and the thickness of the thin ring is 0.5-2.0mm.

[0008] Further, the thick ring at the front end is matched with the plurality of thin rings at the rear end to form a group of beads, and the thick ring and the plurality of thin rings are arranged at equal intervals.

[0009] From the above description of the utility model, compared with the prior art, the small-diameter diamond rope saw provided by the utility model has the beneficial effects: the small-diameter diamond rope saw bead adopts the combined form of thick rings and thin rings, the thick rings and the thin rings adopt the ring sheet structure, the structure of the product can be adjusted and changed according to the cutting object of the product and the demand for the performance of the product, and the product can be conveniently mass-produced, thereby greatly reducing the production cost, the thick ring ensures sufficient support of the product during the cutting process, thereby ensuring the durability of the product, the thin ring structure at the rear end improves the sharpness, the thinner the thickness of the thin ring is, the more the number of the thin ring is, and the better the sharpness is; the small-diameter diamond rope saw bead provided by the utility model adopts the matrix-free bead, which can greatly prolong the service life of the product, the production process of the matrix-free bead is simple, and the production cost is low; meanwhile, due to the volume occupation of the matrix, the small-diameter diamond rope saw with a diameter less than 5.0mm is beneficial to preparation, the prepared bead has a multi-layer distribution of diamonds, thereby greatly improving the consistency and durability of the product. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a structural schematic view of the embodiment one.

[0011] Figure 2 It is a sectional schematic view of the embodiment one. DETAILED DESCRIPTION

[0012] The technical solutions in the utility model will be described clearly and completely in combination with the drawings of the embodiments of the utility model.

[0013] As shown in Figure 1 , 2 , a small-diameter diamond rope saw comprises a steel wire rope 1, a plurality of groups of beads 2, and an injection molding layer 3.

[0014] A group of beads 2 comprises at least one thick ring 21 and at least one thin ring 22, the outer diameters of the thick ring 21 and the thin ring 22 are the same, the thickness of the thick ring 21 is 2-5 times the thickness of the thin ring 22, the thick ring 21 and the thin ring 22 are arranged at intervals on the steel wire rope 1, and the thick ring 21 and the thin ring 22 of the plurality of groups of beads 2 are fixedly connected with the steel wire rope 1 through the injection molding layer 3.

[0015] The outer diameter of the thick ring 21 and the thin ring 22 is 2-10mm, the inner diameter is 1-5mm, the thickness of the thick ring 21 is 2-5mm, the thickness of the thin ring 22 is 0.5-2.0mm, the inner diameter of the thick ring 21 and the thin ring 22 is 0.1-0.3mm larger than the diameter of the steel wire rope, and one group of beads includes one thick ring 21 matched with multiple thin rings 22, and the thick ring 21 and the multiple thin rings 22 are arranged at equal intervals.

[0016] The thick ring 21 and the thin ring 22 of the beads are prepared from raw materials with the following weight percentages, including: FeCuCoNi alloy powder 70-85%, copper-tin alloy powder 10-20%, Cr powder 1-5%, diamond powder 1-5%, the FeCuCoNi alloy powder is prepared from raw materials with the following weight percentages, including: Ni content 5-15%, Co content 10-25%, Cu content 5-15%, Fe content 60-70% in pre-alloy powder.

[0017] A small-diameter diamond wire saw according to any one of the preceding embodiments is prepared by the following specific steps:

[0018] Step one, mixing, placing FeCuCoNi alloy powder 70-85%, copper-tin alloy powder 10-20%, Cr powder 1-5%, and diamond powder 1-5% in a mixer to mix and obtain a mixture, the FeCuCoNi alloy powder is prepared by first preparing FeCoNi alloy powder by atomization method, then adding Cu powder according to the ratio, the Cu powder is broken by an air jet crusher, the diamond powder is mixed from diamond powder with the following weight percentages, including 20-40% fine-grained diamond powder, 40-60% medium-grained diamond powder, and 20-40% coarse-grained diamond powder, the diamond powder is 30#-100# mesh;

[0019] Step two, granulation, adding the mixture into a granulator, then adding 1-3% granulating agent by mass fraction of the mixture again, adding 3-5% alcohol by mass fraction of the mixture into the granulator for granulation to obtain a cold-pressed material;

[0020] Step three, cold pressing, placing the cold-pressed material into a cold press to press into thick rings and thin rings with different thicknesses;

[0021] Step four, sintering, placing the pressed thick rings and thin rings into a vacuum furnace for sintering, the sintering temperature is 800-1000℃, and the holding time is 50-80min;

[0022] Step five, molding, brushing glue on the steel wire rope, threading the sintered thick rings and thin rings according to the required sequence, and using corresponding molds for injection molding to form a bead rope. Specific embodiment one:

[0024] AsFigure 1 、 2 As shown in FIGS. 1-3, a small-diameter diamond wire saw includes a steel wire rope 1, a plurality of groups of beads 2, and an injection molding layer 3; one group of beads 2 includes one thick ring 21 and three thin rings 22, the inner diameter of the thick ring 21 and the thin ring 22 is 2.2 mm, the outer diameter is 4.5 mm, the thickness of the thick ring 21 is 3.0 mm, the thickness of the thin ring 22 is 1.0 mm, the thickness of the thick ring 21 is 3 times the thickness of the thin ring 22, the thick ring 21 and the thin ring 22 are arranged at intervals on the steel wire rope 1, the thick ring 21 and the thin ring 22 of the plurality of groups of beads 2 are fixedly connected with the steel wire rope 1 through the injection molding layer 3, the diameter of the steel wire rope is 2.0 mm, one group of beads includes one thick ring 21 and a plurality of thin rings 22, and the thick ring 21 and the plurality of thin rings 22 are arranged at equal intervals.

[0025] The thick ring 21 and the thin ring 22 of the bead are prepared from raw materials in the following weight percentages: FeCuCoNi alloy powder 82%, copper-tin alloy powder 15%, Cr powder 1.5%, and diamond powder 1.5%; the FeCuCoNi alloy powder is prepared from raw materials in the following weight percentages: Ni content 10%, Co content 20%, Cu content 10%, and Fe content 60% in a pre-alloy powder.

[0026] The small-diameter diamond wire saw described in any one of the preceding embodiments is prepared by the following specific steps:

[0027] Step 1: mixing, placing 82% FeCuCoNi alloy powder, 15% copper-tin alloy powder, 1.5% Cr powder, and 1.5% diamond powder in a mixer to obtain a mixture, the FeCuCoNi alloy powder is prepared by first preparing FeCoNi alloy powder by atomization, then adding Cu and breaking it by an air jet crusher, the diamond powder includes 30% fine-grained diamond powder, 50% medium-grained diamond powder, and 20% coarse-grained diamond powder, the coarse-grained diamond powder is 30 / 40 mesh, the medium-grained diamond powder is 40 / 50#, and the fine-grained diamond powder is 50 / 60#;

[0028] Step 2: granulation, adding the mixture to a granulator and mixing for 100 min, then adding 2% acrylic resin granulating agent to the mixture and mixing again for 30 min, and then adding 5% alcohol to the granulator at a rotation speed of 1200 rpm to obtain a cold-pressed material;

[0029] Step 3: cold pressing, placing the cold-pressed material into a cold press to press it into thick rings and thin rings, the cold-pressed thick rings have an outer diameter of 4.5 mm and an inner diameter of 2.2 mm, and the thickness of the thick rings is 3.0 mm, and the thickness of the thin rings is 1.0 mm;

[0030] Step four, sintering, the pressed thick ring and thin ring are put into a vacuum furnace for sintering, the sintering temperature of the vacuum furnace is 800-1000 DEG C, and the holding time is 50-80 min;

[0031] Step five, forming, the thick ring and thin ring after sintering are threaded on the steel wire rope according to the required order, corresponding molds are adopted for injection molding to form the bead rope.

[0032] The small-diameter diamond rope saw bead 2 adopts the combination of the thick ring 21 and the thin ring 22, the thick ring 21 and the thin ring 22 adopt the ring sheet structure, the structure of the product can be adjusted and changed according to the cutting object and the performance requirement of the product, and the product can be conveniently mass-produced, thereby greatly reducing the production cost, the thick ring 21 ensures sufficient support of the product in the cutting process, thereby ensuring the durability of the product, the rear thin ring 22 structure improves the sharpness, the thinner the thickness of the thin ring 22, the more the quantity, and the better the sharpness;

[0033] The small-diameter diamond rope saw bead adopts the matrix-free bead, the service life of the product can be greatly prolonged, the production process of the matrix-free bead is simple, the production cost is low, meanwhile, the volume of the matrix is not occupied, the small-diameter diamond rope saw less than 5.0 mm is prepared, the diamonds on the prepared bead 2 are distributed in multiple layers, thereby greatly improving the consistency and durability of the product.

[0034] The above is only a few specific embodiments of the present application, but the design concept of the present application is not limited thereto, any non-essential change of the present application by using the concept should belong to the behavior of infringing the protection range of the present application.

Claims

1. A small-diameter diamond wire saw, comprising a steel wire rope and multiple sets of beads fixedly sleeved on the steel wire rope, characterized in that: The set of beads includes at least one thick ring and at least one thin ring. The thick ring and the thin ring have the same outer diameter, and the thickness of the thick ring is 2-5 times the thickness of the thin ring. The thick ring and the thin ring are arranged at intervals on the wire rope. The thick ring and the thin ring of the multiple sets of beads are fixedly connected to the wire rope through an injection molding layer.

2. The small-diameter diamond wire saw according to claim 1, characterized in that: The outer diameter of the thick ring and the thin ring is 2-10 mm, and the inner diameter is 1-5 mm.

3. A small-diameter diamond wire saw according to claim 1 or 2, characterized in that: The thickness of the thick ring is 2-5 mm, and the thickness of the thin ring is 0.5-2.0 mm.

4. A small-diameter diamond wire saw according to claim 1, characterized in that: The set of beads consists of a thick ring at the front end and multiple thin rings at the rear end, with the thick ring and the multiple thin rings arranged at equal intervals.

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