KR20110016239A - A diamond endless wire rope saw and method for preparing the same - Google Patents

A diamond endless wire rope saw and method for preparing the same Download PDF

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Publication number
KR20110016239A
KR20110016239A KR1020090073846A KR20090073846A KR20110016239A KR 20110016239 A KR20110016239 A KR 20110016239A KR 1020090073846 A KR1020090073846 A KR 1020090073846A KR 20090073846 A KR20090073846 A KR 20090073846A KR 20110016239 A KR20110016239 A KR 20110016239A
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KR
South Korea
Prior art keywords
wire rope
diamond
powder
beads
saw
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KR1020090073846A
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Korean (ko)
Inventor
김대진
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김대진
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Priority to KR1020090073846A priority Critical patent/KR20110016239A/en
Publication of KR20110016239A publication Critical patent/KR20110016239A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/18—Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
    • B23D61/185—Saw wires; Saw cables; Twisted saw strips

Abstract

PURPOSE: A diamond endless wire rope saw, capable of reducing the loss of raw materials in cutting and a manufacturing method thereof are provided to secure the rapid cutting speed and to facilitate the mount and replace of a wire rope saw. CONSTITUTION: A diamond endless wire rope saw comprises an endless wire rope(100), beads(300), and a synthetic plastic layer(200). A plurality of beads is inserted in the wire rope at regular intervals. Diamond is brazed in a bead. The space between beads is coated with a synthetic plastic layer. The bead adheres to the wire rope with an adhesive(500).

Description

Diamond endless wire rope saw and method for preparing the same

The present invention relates to a diamond endless wire rope saw and a method of manufacturing the same. More specifically, it is very excellent in durability, such as the bonding strength of the beads and the tensile strength of the rope, and the cutting width is usually about 0.2 to 1.5 mm The present invention relates to a method for producing a diamond endless wire rope saw having a low loss and precision cutting.

Diamond wire saws are generally string-shaped saws, which can provide many advantages over traditional cutting tools. For example, circular saws and the like can cut almost any thickness of structure while the wire saw is limited to a cutting depth below the saw blade radius.

These wire saws are classified into diamond electrodeless wire saws that do not bond both ends of the wires and diamond endless wire saws that bind both ends of the wire and bind in an endless form.

Diamond Electrodeposition Wire A structure in which diamond is electrodeposited or attached to a surface of a single strand of wire rather than a wire in the form of a wire. As a related art, Patent Document 1 discloses a super-polishing wire saw having a plurality of each coated diamond attached to a wire with an organic binder and manufactured to a diameter of less than 0.5 mm.

However, this diamond electrodeposition wire saw has an advantage of having a diameter of 0.5 mm or less, but because it is a single wire rather than a rope type, a wire saw having a length of at least 5 km is wound in a reel form to unwind and wind it. Due to its weakness and durability, the wire breaks frequently during use and the service life is very short, and the wires rise due to the roughness of the diamond electrodeposited on the wire surface during repeated winding and unwinding of the reel. The burning phenomenon occurs and it is very difficult to adjust the tension of the wire, so that the wire is frequently broken, and the movable equipment is very expensive.

On the other hand, the diamond endless wire rope saw, as shown in Figure 1, cylindrical with a synthetic resin, such as polyurethane in a state in which the wire rope 10 is seated on the mold through the center of the bead 30 spaced at regular intervals It is manufactured by integrally molding the synthetic resin layer 20 having a cross section, and the beads 30 protrude from the synthetic resin layer 20 on the shank 32 and the outer surface of the shank embedded in the synthetic resin layer 20. It is composed of a polishing layer 34 in which the diamond abrasive grains are integrally incorporated. Prior arts related to such a diamond endless wire rope saw 60 include Patent Document 2, Patent Document 3, and the like.

Typically, such diamond endless wire rope saws have a diameter of at least 2 mm that allows beads to adhere to the wire rope by means of synthetic resin. That is, in the molding method by the synthetic resin, the beads could not be fixed to the wire rope having a diameter of 2 mm or less. By the way, when the diameter of the wire rope is large, the loss of the cutting object (raw material) is large and the cutting precision is inferior. In particular, when cutting an ingot of a silicon wafer, which is an expensive cutting object, not only the production cost increases but also a considerable time for cutting, and in addition, many silicon slurries are generated, which is disadvantageous for the environment. There is this.

Patent Document 1: Korean Patent Publication No. 2006-0118392

Patent Document 2: Korean Registered Patent No. 0371832

Patent Document 3: Korean Registered Patent No. 0669850

Thus, in the present invention, when the beads are fixed to the wire rope by using an adhesive in the manufacture of the diamond wire rope saw, it has been found that the above problems can be solved, the present invention was completed based on this.

Accordingly, an object of the present invention is to provide a diamond endless wire rope saw having a wire rope having a diameter of less than 1.5 mm, preferably 0.2 to 1.1 mm, and having excellent bead adhesion strength and excellent tensile strength of the wire rope.

Another object of the present invention is to provide a method for manufacturing the diamond endless wire rope saw.

Diamond wire rope saw according to the present invention for achieving the above object:

Endless wire ropes; A diamond-brazed bead in which a plurality of pieces are fitted at equal intervals in the wire rope; And a synthetic resin layer coated between the beads and the beads, wherein the beads are fixed to the wire rope by an adhesive, and the diameter of the wire rope is 0.2 to 1.5 mm.

In the diamond wire rope saw of the present invention, the diameter of the wire rope is 0.2 to 1.1mm.

In the diamond wire rope saw of the present invention, the adhesive is an anaerobic adhesive agent.

In the diamond wire rope saw of the present invention, the adhesive is characterized in that tetraethylene glycol dimethacrylate.

In the diamond wire rope saw of the present invention, the synthetic resin is diamond powder, silicon carbide (SiC) powder, green carboramtam (GC) powder, alumina (Al 2 O 3 ) powder, tungsten powder, tungsten carbide powder, or cemented carbide The powder is further characterized by containing 1 to 15% by weight based on the entire resin.

Method for producing the diamond wire rope saw for achieving another object of the present invention is:

In the manufacturing method of the diamond endless wire saw,

Providing a diamond bead brazing diamond on the outer surface of the shank; Inserting a plurality of said beads into a wire rope having a diameter of 0.2 to 1.5 mm; Binding both ends of the wire rope to endlessize; Applying an adhesive to a wire rope portion to which the beads are to be fixed and positioning the beads to fix the beads to the wire rope; And coating between the fixed beads and the beads with a synthetic resin.

In the production method of the present invention, the wire rope has a diameter of 0.2 to 1.1 mm.

In the production method of the present invention, the adhesive is characterized in that the anaerobic adhesive.

In the production method of the present invention, the synthetic resin is characterized in that the polyurethane resin or UV curable resin.

In the manufacturing method of the present invention, the material of the wire rope is characterized in that the steel alloy, SUS or tungsten.

In the production method of the present invention, the synthetic resin is a diamond powder, silicon carbide (SiC) powder, green carboramtam (GC) powder, alumina (Al 2 O 3 ) powder, tungsten powder, tungsten carbide powder, or cemented carbide powder It is characterized by containing 1-15 weight% further with respect to the whole resin.

As such, the endless wire rope saw according to the present invention is not only excellent in durability such as bond strength of the beads and tensile strength of the rope, but also relatively thin in the cutting width, so that the loss of raw materials is small, and precise cutting is possible. In addition, the endless wire rope saw according to the present invention is not only capable of multi-cutting but also very fast cutting speed, it is very easy to remove, mount and replace the wire rope saw. In addition, the endless wire rope saw according to the present invention can rotate and rotate so that the diamond can work as much as the circumference has a long life effect of the wire rope saw.

Hereinafter, with reference to the accompanying drawings of the present invention will be described in more detail.

2 is a cross-sectional view showing a diamond endless wire rope saw according to an embodiment of the present invention, Figure 3 is a cross-sectional view showing a diamond endless wire rope saw according to another embodiment of the present invention, Figure 4 is This is a process diagram schematically illustrating a process of manufacturing a diamond endless wire rope saw.

2, the diamond endless wire rope saw 600 according to the present invention is an endless wire rope 100; A bead 300 having a diamond brazed in which a plurality of wires are fitted to the outer surface of the wire rope 100; And a synthetic resin 200 coated between the beads and the beads.

According to another embodiment of the present invention as shown in Figure 3, the endless wire rope 100; A bead 300 having a diamond brazed in which a plurality of wires are fitted to the outer circumferential surface of the wire rope 100; And a synthetic resin 200 coated between the beads and the beads, wherein the synthetic resin 200 further includes an abrasive powder 400.

In addition, the bead 300 is an adhesive 500, preferably a cylindrical shank 320 is fixed to the wire rope by the anaerobic adhesive and the distribution of the brazed diamond protruding from the synthetic resin layer 200 on the outer surface of the shank The polishing layer 340 is formed.

That is, the diamond endless wire rope saw 600 according to the present invention has a structure in which the wire rope 100, the synthetic resin layer 200, the beads 300, the abrasive grains 400, and the adhesive 500 are organically bonded. to be.

In the present invention, the wire rope 100 may be a steel alloy (for example, piano wire), stainless steel (hereinafter referred to as "SUS"), or tungsten alloy. In all cases where the cross section of the wire rope is 1 × 7 (with six sheaths twisted on one central core wire), 3 × 9, 7 × 7, or 7 × 19, the diameter of the wire rope is 1.5 It is less than mm, Preferably it is 0.2-1.5 mm, More preferably, it is 0.5-1.1 mm. As such, since the diameter of the wire rope is very thin, the material of the wire rope is preferably a steel alloy (piano wire) or a tungsten alloy in terms of strength. Table 1 shows the strength of the wire rope having a cross section of 1 × 7 according to each material.

Steel alloy (piano wire) SUS Tungsten alloy thickness 1.0 mm 1.05 mm 1.0 mm Breaking force 1.17 kN 1.04kN 1.14 kN

Meanwhile, referring to FIG. 2 to FIG. 4, the manufacturing process of the present invention will be described in detail. First, the wire rope 100 and the shank 320 are washed and degreased, and then a diamond metal powder is formed on the shank 320. The bead 300 is manufactured by brazing in a conventional manner by using. The metal powder may be nickel (Ni) alloy or silver (Ag) lead. In particular, the nickel is the most used component is excellent in tensile strength, very good bonding force with diamond.

The bead 300 thus manufactured is inserted into the wire rope 100, and then loosened both ends of the wire rope 100 to bind in both directions to endless the wire rope. For example, in the case of a wire rope having a cross section of 7 × 7 or 7 × 19, out of the six covering wires surrounding one core at one end, three strands are loosened, and the three strands interposed therebetween After shortening, at the other end of the three strands corresponding to the short three strands loosen long, the three strands corresponding to the long three strands are made short and twisted in both directions to bind each other, the at least three sites (core The wire rope can be endless by placing a bead and fixing it with an adhesive at one site where it meets, and two sites where the three long sheaths meet the short sheath.

When the adhesive 500 is applied to the endless wire rope 100 at equal intervals, and the bead 300 is placed on the portion to which the adhesive is applied, the wire rope 100 and the bead 300 are formed of an adhesive ( 500).

According to the present invention, the adhesive 500 is preferably an anaerobic adhesive. The anaerobic adhesive is a liquid chemical whose main component is methacrylate, and when placed in an air free place, a chemical reaction starts and solidifies. In the process of solidification, the adhesive force and the sealing force is generated to act as an adhesive. Usually used for the adhesion of metals and metal components, metal ions serve as a catalyst to promote the chemical reaction of anaerobic bonds. The rate of hardening varies depending on the nature of the metal, and when used for metals that play a good role in catalysts such as brass and bronze, the initial rate of curing is less than 10 minutes. Slower than that

In general, in the case of the iron material used a lot, the initial curing time is about 20 to 30 minutes because it serves as a medium catalyst. Since the metal component simply serves as a catalyst, there is no problem of melting or deformation.

As it is an anaerobic product, chemical reactions do not start when in contact with air. When air contact is interrupted, a chemical reaction begins, turning the liquid product into a solid state. In this process, adhesiveness and sealing properties are exhibited. Placing anaerobic products on metal surfaces does not cure until air contact is blocked.

Such anaerobic adhesives can be purchased and used commercially available products, preferably tetraethylene glycol dimethacrylate.

When the beads 300 are fixed to the wire rope 100 by the adhesive 500, the beads 300 and the beads 300 are coated with a synthetic resin such as polyurethane or UV curable resin by using a coating equipment. A diamond endless wire rope saw of the present invention is manufactured by forming a layer of synthetic resin 200.

On the other hand, the synthetic resin 200 is used for the purpose of preventing the wear of the wire rope, to secure the flexibility of the wire rope saw, the UV curable resin in the resin molecular structure (Vinyl), that is, such as C = C It is a resin having an unsaturated component and receiving a light (ultraviolet ray) to activate the photoinitiator to cause cross-linking and polymerization (Gel) through the initiation reaction of free radicals, thereby curing.

In addition, the synthetic resin 200 may be an abrasive grain such as diamond powder, silicon carbide (SiC) powder, green carboramtam (GC) powder, alumina (Al 2 O 3 ) powder, tungsten powder, tungsten carbide powder, or cemented carbide powder. (400) may further comprise 1 to 15% by weight based on the entire resin. The abrasive powder 400 may be included in the synthetic resin to increase cutting force and wear resistance of the wire rope. That is, there is an effect of having the cutting force itself while minimizing the loss of synthetic resin during cutting by the added abrasive powder. If the added amount of the powder is less than 1% by weight, the effect of addition is insignificant, and if it exceeds 15% by weight, the flexibility of the wire rope is decreased, and the adhesion between the wire rope and the resin, and the resin and the abrasive powder tends to be inferior. In addition, the size of the powder is preferably 100 to 600 mesh, if less than 100 mesh, the particles are too large tends to fall off the resin layer, if it exceeds 600 mesh is not very helpful in improving the wear resistance of the wire rope.

Hereinafter, the present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited to the following examples.

Example 1

Beads were prepared by washing wire rope and shank of steel alloy (piano wire) material having a diameter of 1.0 mm and having a cross section of 7 × 7, and then brazing diamond with nickel (Ni) on the outer surface of the shank. A plurality of the beads were inserted into the wire rope, and both ends of the wire rope were bound to endlessly. The beads were secured by placing them on the paste-coated area, while sufficiently applying anaerobic adhesive (Loctite, USA) at equal intervals to the wire rope area to which the beads were to be fixed. Then, the bead-fixed wire rope was left to stand for about 24 hours to bond the beads to the wire rope. Then, the bead and the beads were coated with polyurethane using a coating equipment to prepare a diamond endless wire rope saw of the present invention.

Example 2

Beads were prepared by washing wire rope and shank of steel alloy (piano wire) material having a diameter of 1.0 mm and having a cross section of 7 × 7, and then brazing diamond with nickel (Ni) on the outer surface of the shank. A plurality of the beads were inserted into the wire rope, and both ends of the wire rope were bound to endlessly. The beads were secured by placing them on the paste-coated area, while sufficiently applying anaerobic adhesive (Loctite, USA) at equal intervals to the wire rope area to which the beads were to be fixed. Then, the bead-fixed wire rope was left to stand for about 24 hours to bond the beads to the wire rope. Then, the diamond endless wire rope saw of the present invention was manufactured by coating the beads between the beads with a polyurethane containing 5% by weight of diamond powder having a particle size of about 325 mesh using a coating equipment.

The bond strength and tensile strength of the wire rope saws according to Examples 1 to 2 thus prepared and after cutting (after use) of the Poly-Si ingot under the following conditions were measured and described in Table 2 below. In addition, the cutting speed and life of the endless wire rope saw according to the present invention was measured and described in Table 3.

-Cutting conditions

1.Material: Poly-Si ingot 5th generation block 830 × 830 × 250㎜

2. Cutting equipment: Multi type dedicated M / C

3. Cutting size: 25 bars / 1 ingot of 156 × 156 × 250㎜

4. Cutting method: X-axis 6 lines, Y-axis 6 lines simultaneous multi-cutting

division Example 1 Example 2 Bead Bonding Strength Before use 50 kgf 50 kgf after use 30 kgf 40 kgf Tensile Strength of Endless Wire Rope Before use 100 kgf 100 kgf after use 60 kgf 80 kgf

division Example 1 Example 2 Cutting speed of endless wire rope 2.5hrs / 1 ingot 2.5hrs / 1 ingot Life of Endless Wire Rope Saw gun
Cutting quantity 5th generation block (830 × 830 × 250mm)  15 20 Bar (156 × 156 × 250mm) 375 500 Life of average wire rope saw Approximately 31.25 bars 41.6 Bar

On the other hand, using a wire rope saw according to Examples 1 and 2 was measured in the cut state of the silicon bar (Bar) is shown in Table 4 below.

wire Square 1) Croper 2) Drive rpm 5100 rpm Roughness (Rmax) 40㎛ ↓ Roughness (Rmax) 40㎛ ↓ Length 4605 mm Squareness ± 0.15 ° Squareness ± 0.15 ° Mesh size 60/80 # flatness ± 0.15 mm flatness ± 0.15 mm Cutting fluid water - - - -

1) is the process of blocking ingots into squares, and 2) is the process of cutting the top and ends of the square blocks.

As can be seen from Tables 2 to 4, the endless wire rope saw according to the present invention has excellent durability, such as bonding strength and tensile strength, both before and after use, and can be cut very thinly, resulting in loss of raw materials during cutting. In addition, the cutting conditions such as roughness, squareness, and flatness of the cut bar are excellent, so that precise cutting is possible. In addition, the endless wire rope saw according to the present invention is not only multi-cutting is possible, the cutting speed is very efficient, the life of the wire rope saw is long, there is an effect that the removal and installation is very easy.

1 is a cross-sectional view showing a diamond wire saw according to the prior art,

2 is a cross-sectional view showing an embodiment of a diamond wire rope saw according to the present invention,

3 is a cross-sectional view showing another embodiment of a diamond wire rope saw according to the present invention,

4 is a process diagram schematically showing a process of manufacturing a diamond wire rope saw according to the present invention.

-Explanation of symbols for the main parts of the drawing-

10, 100: wire rope 20, 200: synthetic resin

30, 300: Bead 32, 320: Shank

34, 340: abrasive layer 400: abrasive grains

500: adhesive 60, 600: diamond wire rope saw

Claims (11)

Endless wire ropes; A diamond-brazed bead in which a plurality of pieces are fitted at equal intervals in the wire rope; And a synthetic resin layer coated between the beads and the beads, wherein the beads are fixed to the wire rope by an adhesive, and the diameter of the wire rope is 0.2 to 1.5 mm. . The method according to claim 1, Diamond endless wire rope saw, characterized in that the diameter of the wire rope is 0.2 ~ 1.1mm. The method according to claim 1, Diamond endless wire rope saw, characterized in that the adhesive is anaerobic adhesive. The method according to claim 1 or 3, Diamond adhesive endless wire rope saw, characterized in that the adhesive is tetraethylene glycol dimethacrylate. The method according to claim 1, The synthetic resin is a diamond powder, silicon carbide (SiC) powder, green carboramtam (GC) powder, alumina (Al 2 O 3 ) powder, tungsten powder, tungsten carbide powder, or cemented carbide powder 1 to 15% by weight of the whole resin A diamond endless wire rope saw further comprising%. In the manufacturing method of the diamond endless wire saw, Providing a diamond bead brazing diamond on the outer surface of the shank; Inserting a plurality of said beads into a wire rope having a diameter of 0.2 to 1.5 mm; Binding both ends of the wire rope to endlessize; Applying an adhesive to a wire rope portion to which the beads are to be fixed and positioning the beads to fix the beads to the wire rope; And Coating between the fixed beads and the beads with a synthetic resin; Method of producing a diamond endless wire rope saw comprising a. The method according to claim 6, A method for producing a diamond endless wire rope saw, wherein the wire rope has a diameter of 0.2 to 1.1 mm. The method according to claim 6, The adhesive is an anaerobic adhesive, characterized in that for producing a diamond endless wire rope saw. The method according to claim 6, The synthetic resin is a method of producing a diamond endless wire rope saw, characterized in that the polyurethane resin or UV curable resin. The method according to claim 6, The material of the wire rope is a method of manufacturing a diamond endless wire rope saw, characterized in that the steel alloy, SUS or tungsten alloy. The method according to claim 6, The synthetic resin is a diamond powder, silicon carbide (SiC) powder, green carboramtam (GC) powder, alumina (Al 2 O 3 ) powder, tungsten powder, tungsten carbide powder, or cemented carbide powder 1 to 15% by weight of the whole resin Method for producing a diamond endless wire rope saw, characterized in that it further comprises%.
KR1020090073846A 2009-08-11 2009-08-11 A diamond endless wire rope saw and method for preparing the same KR20110016239A (en)

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