TW201240756A - Saw wire and manufacturing method thereof - Google Patents

Abstract

To solve the problem in prior arts, the purpose of the present invention is to provide a saw wire and a manufacturing method thereof that are capable of providing increased strength and rigidity and extending lifespan of the saw wire due to the suppression of fatigue breaking and the increase of corrosion resistance, even though the saw wire is thin. The saw wire of the present invention is a particle-fixed type saw wire, which is formed by fixedly attaching particle-like cutting/polishing particles on a surface of the core material of a thin metal wire via a coating material. The saw wire of the present invention is characterized in that the aforementioned core material is composed of austenitic stainless steel wire, which contains: C: 0.05 to 0.15, Si:≤ 2.0, Mn: ≤ 3.0, Ni:6.0 to 9.5, Cr:16.0 to 19.0, and N:0.005 to 0.25 by mass %; 2C+N is adjusted to be 0.17 to 0.40%; and the rest portion is formed of made of Fe and inevitable impurity. Also, the saw wire of the present invention is provided with tensile strength(σ) of 2500 to 3500MPa and characterized with a ratio σ (=(E1/E0)×100) between a strain (E1) of an elastic proportion region and a total strain (E0) before breaking to be greater than 45% in a stress-strain diagram of tensile test.

Description

201240756 VI. Description of the Invention: [Technical Field] The present invention relates to a saw wire and a method of manufacturing the same, which can be used for various materials which are hard and highly brittle (for example, inorganic materials such as tantalum or ceramics, sapphire, etc.) The cutting process of a rare earth metal such as a niobium alloy used as a material for high magnetic materials is excellent in cutting efficiency and long in life. [Prior Art] A cutting operation using a wire saw (also referred to as a wire tool), which has been used for cutting processing such as sapphire in semiconductor wafers or LED applications, for example, Or cutting of hard-to-machine materials such as stone, which are hard and brittle. For example, as shown in Fig. 6, in the mechanism, the ore Tw (which is formed by fixing fine abrasive grains p such as hard diamond on the surface of a metal core wire w such as a piano wire) is interposed at intervals of a specific width. Between and move it at a high speed, thereby physically cutting the cut object G->-4.' 43⁄4 . J Liu Li! • Raw cutting has been carried out to improve the cutting efficiency or durability, the smoothness of the cut surface, etc. Various research or development has been carried out. The surface of the abrasive grain-fixed ore wire with fine abrasive grains for cutting is excellent in cutting property, workability, and workability, and gradually replaces the former free abrasive grain type wireguard. The above-mentioned relatively expensive cut object g such as Shishixi or basket gemstone is targeted, and its shape is also large, & in order to make the saw wire have no broken line during the cutting operation and minimize the cutting width of the sawing wire Instead, a metal wire having a wire diameter of about 11 to about .5 mm and having a strength is used as the core wire. That is, if the I line breaks during the cutting operation, it is necessary to stop the machine 201240756 and hang the complicated line again. Further, when the mine wire is broken, the cutting surface before and after the breakage of the workpiece G is changed in a state such as a step, and the smoothness of the cut surface is hindered, and the repair and polishing require a lot of work. Moreover, in the case where such repair is difficult, the cut object itself is discarded. Therefore, the saw wire is required to have cutting efficiency and to extend the life characteristics. Further, as a new use example of the saw wire, for example, a rare earth alloy such as a r-type-B rare earth sintered magnet (alloy) for cutting a metal alloy which is a metal material for a strong magnet has been proposed. As an example, a rare earth sintered alloy which is mainly used as a strong magnet (commonly referred to as "uranium magnet") having a composition of Nd, iron (Fe) and side (b) as a main component is known. The Nd2Fel4B intermetallic compound constitutes a harder main phase (iron-rich phase) and a grain boundary phase which is viscous with Nd. The titanium magnet is obtained by, for example, "hot-extruding an alloy powder of a specific composition into a block shape" and sintering it, so that the hardness is extremely hard above HRc75 and has high brittleness. Therefore, the neodymium magnet is difficult to perform normal machining, and the cutting process using the above saw wire is often used. The relevant literature is described below. [Patent Document 1] Japanese Unexamined Patent Publication No. Hei No. Hei. No. Hei. No. Hei. No. 138. However, the line tool of the above-mentioned patent document i is composed of a hard steel wire such as a high-c piano wire as a core material, and although the strength characteristics are excellent, the fatigue life is poor, and the corrosion resistance is also low, so that it is difficult to extend the life. That is, the above-mentioned 4 201240756 piano line system enhances the strength by the work of the iron structure generated by the wave generated in the toughening treatment before the cold drawing, and therefore, although, for example, the static strength in the breeding process It is excellent, but it is considered that the fatigue life is not sufficient as a core material of a saw wire which is often loaded with a large tension as in the case of the saw wire and which is continuously moved between the rolls and which is extremely moved at a high speed. In addition, the piano line is relatively sensitive to external influences due to the above metal structure. Therefore, there is also concern about the hydrogen embrittlement caused by, for example, hydrogen generated in the mineral deposit processing after the occlusion, or the effect on the recording resistance caused by the liquid coolant supplied from the paper during cutting. Therefore, it is difficult to consider that such a piano wire has sufficient performance in adhesion to the metal ore layer to which the abrasive grains are fixed, or in the occurrence of peeling and cracking of the bell. Further, the amorphous f alloy wire described in Patent Document 2 or C of Patent Document 3 is used. As a core material, the base alloy wire is also sufficiently popularized to reduce the workability of the wire diameter, or the adhesion to the surface plating state, or the price of the material. In particular, since the strength of the amorphous alloy wire is lower than that of the above-mentioned piano wire, it is not suitable for the saw wire which is excellent in strength and long life as a sub-image in the present invention. Further, in the cutting operation by the above-described mine line, for example, as shown in Fig. 7, 'the workpiece w is placed between two work reports r and r, and the S system has a thickness of about 〇_2_. The thin line, so that the deflection will occur without: the solid pressure is applied to the object to be cut w, and the cutting efficiency is liable to decrease. Therefore, the material has the characteristics of being high-strength, subjected to such extreme use, excellent in field and initial properties, and suppressing fatigue fracture. Further, due to these characteristics, for example, in the early stage of the cutting operation, the 201240756 stage, the above-mentioned Ni-coated metal coating material covering the entire surface (including the fixed abrasive grains) is worn, and the fine abrasive grains inside thereof are advanced. It is also helpful to expose the situation. Therefore, in view of this point of view, it is also sought to omit the pretreatment saw wire by the improvement of the 4-line characteristic and the dressing process. In order to solve such a prior problem, an object of the present invention is to provide a mine which, although it is a thin wire, suppresses fatigue fracture by increasing strength and appropriate elastic properties, thereby prolonging life and improving touch resistance. Production method. The invention of claim 1 is a saw wire which is a particle-fixed saw wire in which a particle-shaped cut abrasive grain is fixed to a surface of a core material composed of a long thin metal wire and is fixed by a coating material. The core material is a stainless steel wire of a Vostian system, in terms of mass%, the steel wire contains: C. 〇_〇5 ～0.15 Si : ^ 2.0 Μ η : ^ 3.0 Ni : 6.0 9.5 Cr : 16.0 〜 19.0 And N: 0.005 to 〇.25%, and 2C+N is 0.15 to 0.40%, and the remainder is composed of F e and unavoidable impurities; and the tensile strength (σ ) of the above core material is 25 〇〇 35〇〇MPa, and the elastic ratio of the strain (E1) in the elastic ratio region of the stress-strain diagram in the tensile test to the total strain (E〇) up to the fracture (= 201240756 { (E1/E0) ) χ1〇〇}) is 45% or more. The invention of claim 2, wherein the core material further comprises any one of the following (丨), (r[) and (melon) Three elements: (^^, ^, ^, 汾 任 ^ ^ ^ ^ ^ ^ 0.30% (Π): ν: 0.1〇 ~ 〇 5% (ΠΙ) : Mo : 0.2~2.0% or Cu : 〇· Further, the invention of claim 3 is the saw wire of claim 1 or 2, wherein the core material has the following formula Μ value of 5 The invention is a saw wire according to any one of claims 1 to 3, wherein the core material has 3 〇 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 A particle-fixed saw wire which is thickened on the surface of an anger material composed of thin metal wires and is characterized by the following stages: a Preparation stage: Prepare the stainless steel wire of the Vostian system, in terms of mass%, the steel wire contains: C: 0.05 ~ 0.15 Si : 彡 2.0 201240756 Μ η : ^3.0 Ni : 6.0~10.0

Cr : 16.0 to 19.0 and N: 0.005 to 0.25%' and 2C + N is adjusted to 0.15 to 〇.4〇〇/0, and the remainder is composed of F e and unavoidable impurities; b) Processing stage: 8 The steel wire is subjected to cold drawing processing at a processing rate of 5 °/〇 or more to form a long strip of stainless steel; c) heat treatment stage: the stainless steel thin wire is heated at a temperature of 3 〇〇 6 6 〇〇〇 c and the reverse tension is applied simultaneously The low-temperature annealing treatment is performed to obtain the above-mentioned core material having the following characteristics: tensile strength (σ): 25 〇〇 to 35 〇〇 MPa and the strain of the elastic-proportional region of the stress-strain diagram in the tensile test (ei) ) The elastic ratio α ( = {( ei/e〇,) χ 100}) of the total strain (E0) up to the break is 45% or more; and the tamping stage: the step of suspending the above-mentioned abrasive grains Metal ore = The core material is subjected to an electrolytic deposition process to fix the abrasive particles on the surface of the core material at a specific distribution density. The core material, and the β of the one item, is fixed by the abrasive grain, which has a higher tensile strength/Worthfield" stainless steel wire, and the characteristics of the outer dielectric strength and the appropriate elastic ratio α, Therefore, the high-resistance is due to the higher tension in the state of use, and the fatigue resistance of the same speed can be lifted. The outer layer is composed of the above-mentioned Vostian system stainless steel wire composed of the above-mentioned components. 'Therefore, it will not reduce the surface and the system's unspoken line, and even if it is used or stored, it will have sufficient resistance to the life in the environment of 201240756, which can extend the life expectancy. In the inventions of 2 to 5, the characteristics of the core material are improved, and a more stable sawing wire can be provided, which contributes to an improvement in cutting efficiency. Further, according to the invention of claims 6 and 7, the above-mentioned abrasive grains can be provided. The wire is fixed to the core material more firmly, and is prevented from being smashed by the abrasive grains. The saw wire which improves the cutting performance. On the other hand, it is produced according to the inventions of the eighth to eleventh patents related to the manufacturing method. Stronger Further, the core material which is stabilized by the processing strain is released, and the operability and workability in the subsequent plating treatment or use as a saw wire are good, which contributes to an improvement in work efficiency. [Embodiment] Hereinafter, the suicide line of the present invention is applied. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a portion of a suture 1 of the present invention which is peeled off and enlarged, and an additional cross section of Fig. 2 shows a cross section. 5. The core material 2 composed of the long thin metal wires 2A and the abrasive grains 4 for polishing adhered to the surface of the μ material 2 by the use of the metal formed on the surface of the material 2 The deposited coating layer 3 of the mineral deposit is indirectly fixed by electrolytic deposition treatment. The heart material 2 is characterized in that it is composed of a stainless steel wire of a Vostian system having a specific composition in the present invention and having a tensile strength of 2500 to 3500 MPa (1). And as shown in Figure 3; in the stress-strain diagram in the tensile test, ΜΨ* ΓΕη ^ ^ ® ? the ratio of the elastic ratio region to the total strain (Ε0) to the fracture, 201240756 (E1/E0) The elastic ratio of x loo is "45% or more. The size and shape of the above-mentioned core material 2 can be variously set according to the type, size, and working conditions of the object to be cut, for example, the wire diameter is used. · A single line with a circular cross section of about 0.8 mm. If f is thickened to exceed the necessary core material, the cutting width of the expensive cut object will be enlarged to reduce the yield. The softness is impaired and the risk of breakage is increased. In addition, if it is a core material of a small diameter, the load tension in the cutting step cannot be tolerated, and the strength is insufficient to cause disconnection or the like, which makes it difficult to perform efficiency. Homework In other words, the core material 2 preferably uses a thin wire having a wire diameter of about 0.2 to 35.35 mm. In addition, the core material 2 can also be formed by twisting a plurality of thin wires or by a cross-sectional shape. The round shape is, for example, a flat line which is processed by twisting and processing. The anger material 2 is composed of the following high-CJ_N-added type of Vostian system non-mineral steel wire: in mass%, containing

Mm〇, Ni: 6.0~9.5, Cr: 16〇~19〇 and N: _~0.25. /. As a chemical component, 2C+N is adjusted to 〇i7~"state, and the remainder is composed of Fe and unavoidable impurities. That is, the excellent tensile strength brought by the interstitial elements of the above... Further, by increasing the elastic ratio α described above, it is possible to obtain a strain that can withstand the tension at the time of use or the fatigue resistance, and it is possible to achieve a high-efficiency misalignment. The reason for setting the content of each chemical component is explained. [C : 〇.〇5 ～0.15%] The C-series and the Ν--formation form the elements of the Worth field, which will bring the strength and flexibility of the addition of 10 201240756. The improvement of the characteristics. When the human is added with 0.05% or more, it becomes clear that the member is 'added more than 〇j 5〇/〇nw, and leans to form carbides harmful to the crystal grain boundary and k is resistant to corrosion. The sex is degraded. Therefore, i is preferably 0.06 to 0.13%. [S i : 2. 〇% or less]

Sl is added as an oxygen scavenger, and the strength, the elastic limit, and the oxidation resistance are improved by containing si. Iron and its Θ 然而 ^ However, the addition of the right 罝, there is the problem of resilience and decline. Therefore, Si is 2 ft. / w ~ττ

Si is 2.0/〇 or less, more preferably 〇 3 to 丨6%. [Μη : 3.0❶/◦ below; j

The Mn system is used as an oxygen scavenger in refining as well as Si. However, in the Vostian system stainless steel, it also contributes to the phase stability of the Vostian bulk phase (r). In addition, there is a hidden effect of reducing the use of expensive crucibles and increasing the solid solution limit of the n element. However, a large amount of the content causes a decrease in the rigidity of the core material and an increase in the price of the material. Therefore, it is preferable to set Μη to 3.〇% or less, more preferably 〇2 to 18%. [Ni: 6.0~9.5%] 1 is one of the basic elements of the Vostian system stainless steel, which is an indispensable element for realizing the stability of the Worth field and improving the box. Further, 'Ni has an effect of suppressing the formation of a loose matrix of the field accompanying the processing, and increasing the amount of N solid solution to cause non-magnetic properties. From this point of view, it is at least 6.0% or more. (4) Since Ni is very expensive and a large amount of addition causes a decrease in the growth rate, it is set to be 95% or less, preferably 6 to 85%. [Cr: 16_0~19.〇〇/〇]

Like the above Ni, Cr is also a basic element of stainless steel, and must contain 16.0% or more in terms of improving corrosion resistance. On the other hand, since the amount of Cr forms a compound with the above C and N and the toughness is lowered, the enthalpy is 201240756 19.0% or less, preferably 17.0 to 18.5%. [N : 0.005 ～0.25%] Since N is the same as C, it is the opening of Worth's body;; Jay; the main bottle & heart is το素, and also filled (4) 'so the strength is increased by solid solution' especially The rigidity is increased by the lodging stress caused by the grain refinement. However, a large amount of addition will produce nitrogen compounds which will degrade the properties or hinder the processing, shouting, and the processing yield will decrease and the cost will rise. Therefore, the amount of N is set to 又0 and two υ.005~〇 25%, more preferably 0.03 to 0.20%. In addition, in the present day and month, II can also improve its characteristics by adjusting various components or adding a third element in the composition. For example, by setting the relationship between C and N, 2C+N, to 〇17~〇 4〇%, it is possible to appropriately balance rigidity and toughness, improve cutting property, and extend life. In other words, if the amount of 2C+N is less than 〇_17%, sufficient strength improvement or high elasticity cannot be expected. On the other hand, if it exceeds 0.40%, it is feared that a compound is formed and the twist and toughness are lowered, resulting in extreme The fatigue of the wrong line used in high-speed movement is reduced, and the life is reduced. From this point of view, the amount of 2C + Ν is preferably from 0.18 to 0.32%. As a more preferable form of such a composition, for example, a non-commissioned steel which is adjusted as follows is recommended. The following Vostian system stainless steel wire is recommended: in mass %, containing: C: 0_08 to 0.13, si: 0.50 to 1. 〇〇, Μη: 0.20 to 0_80, Ni: 7.5 to 8.5, Cr: 17.0 to 19.0 and N : 0.1 〇.2〇, and the above 2C+N is adjusted to 0.20 to 0.40%. The remainder is composed of Fe and unavoidable impurities. In addition, the present invention is composed of a non-recorded steel wire which further contains the third element of any one or more of (i), (n), and (m) of the following 12 201240756, and is also excellent (8). : [Make Nb, A, Ti, Ta, Zr, i or more, 〇〇1~〇3〇%]

Nb, A, Ti, Ta, and Zr can stably refine the Vostian body phase after heat treatment of the steel wire, thereby improving toughness. The effect of each of the above-mentioned elements is 0.01% or more, or two or more of them are used. On the other hand, if the content exceeds 0.30%, the effect is saturated and the cost increases. In this case, it is preferable that the total amount of the added elements is 〇 or less, and in particular, Nb and octa 1 can further improve hot workability, and the strength of the fine compound particles can be increased and hardened by the inside thereof. One or both are more useful. (Π): [V : 〇.1〇~〇5〇/〇] The V system is similar to the above a丨 or Nb, and forms fine carbon and nitriding to stabilize the grain of the Worth field. The degree of improvement is improved, so it is preferable to add 〇_1% or more. However, if it exceeds 0 5%, its & fruit reaches saturation, so the upper limit is set to 0 5%. (m): [. 0.2~2.0. /. Or Cu : 0.15~0.8°/. Any one or more of them] M〇 will increase the corrosion resistance by 0.2% or more. However, if the rate exceeds 2'G%' (four), the upper limit is set to 2.0%. More preferably, 25~ 〇·70%. In addition, since Cu inhibits work hardening due to the addition and contributes to the improvement of the elastic property > β, the amount is set to 0.15 to 0.8%. 13 201240756 Further, in terms of composition adjustment of each of the above basic elements, it is also preferable to increase the rigidity rate by adjusting the following formula to a value of 5 to 28%.

M = 16C + 2Mn + 9Ni - 3Cr + 8Mo + 15N The M value is determined based on the result of investigating the influence of each element on the rigidity rate in the manufacturing process, and therefore, although it has at least 5% or more in the stainless steel of the above composition, When the characteristic M exceeds 28%, it is difficult to consider that the rigidity of the core material 2 as the saw wire is sufficient. From this point of view, the above % value is more preferably from 10 to 26%. The core material 2 is composed of stainless steel having a composition adjusted as described above, and the remainder thereof is allowed to contain Fe and some unavoidable impurities such as p, s, bismuth, and H, and it is preferable to set the total amount of the impurities to, for example, 〇8. % or less. Further, the core material is set to have a tensile strength: a preferable characteristic of the strength of 2500 to 350 OMPa' and the above elastic ratio in the tensile test is 45% or more. ' ^ The above tensile strength is measured, for example, according to JIS-Z2241 "Metal material stretching method J. If the tensile strength is less than 25 〇〇Mpa, the saw wire is moved at a high speed and is used to improve The cutting efficiency of the cutting material: the force increases the risk of wire breakage. On the contrary, if it is more than 35 〇嶋:: ί~ material: it is easy to produce fatigue fracture. t It is ideal that the above is better set. It is more than 28 MPa and less than 33 〇〇Mpa. As described above, the core material 2 has the high-strength characteristics as described above, for example, the composition of the component is not recorded, and the processing rate is adjusted to 85% or more. The stainless steel wire of the knife is processed by cold drawing, and further, by the temperature of 300~, 〇υυL, preferably 350~550 14 201240756 °C, especially preferably 380~50 (the temperature condition of rc Performing low-temperature annealing (tempering treatment). This low-temperature annealing treatment can eliminate the processing strain generated in the above-mentioned wire drawing processing and suppress internal stress, and improve tensile strength, endurance, and twisting characteristics, and suppress the occurrence of kinking. The tempering process has improved The effect of the volume of the field and the effect of the magnetization of the abrasive grains. That is, according to the test results verified by the applicant, it is found that if the stainless steel thin wires of the above chemical components are subjected to low-temperature annealing treatment under the above conditions, only the wire drawing process is performed. Compared with the tensile strength and endurance, the strength characteristics are large: the urn is improved, the twisting characteristics are increased by more than 2 times, and the amount of the mass in the field is also increased by several %. In addition, if the low temperature annealing treatment is performed, even in the kink test It does not cause breakage, but also has a useful effect and effect. Here, the above-mentioned bypass characteristic is obtained by, for example, the torsion test method of the stainless steel wire specified in JIS-G43丨4. The distance is set to x200 times the wire diameter of the core material for measurement, and when the tension is not increased, for example, 〇·2〇/. It is more preferable that the core material 2 has a twisting characteristic of about 50 to 80 times. On the other hand, regarding the amount of the above-mentioned Ma Tian bulk, the core is realized. The characteristic is strengthened, and may have high strength and high elastic point, and is set to, for example, 3 〇 to 9 〇 %, preferably 50 to 80%, according to the above processing conditions. For example, in the case where the abrasive grains coated with the following metal are fixed on the surface thereof by electrolytic deposition, the effect of magnetizing the core material 2 to magnetize more abrasive grains is brought about. The measurement is performed, for example, by a method of obtaining a peak intensity by χ ray around 15 201240756: by a DC magnetization measuring device, and by a saturation magnetic flux; θ: 夕士 & It can also be measured by a ferrite meter, and can be measured by various methods. The characteristics are, for example, shown in Fig. 3 showing the relationship between stress and strain stem (stress-strain curve) of the tensile test of the core material 2. , will bring the elastic ratio α of the elastic variable ratio region (Ε1) to its total strain (ε〇). Here, the above-mentioned amount of variables (ΕΙ) starts from straight. The ratio of the linear elastic region (reference, | ly) is separated from the other side, and the total strain (5) is the total strain at which the core material undergoes tensile fracture. Further, the elastic ratio α (%) is obtained according to the calculation formula (ε1/ε〇) χΐ〇〇. In general, it is known that a non-recorded steel wire system of the Vostian system is work hardened by its wire drawing process and rapidly increases its strength' but on the other hand, the elongation at break decreases. This characteristic is, for example, a broken line in FIG. 3 (the comparative example , shows that although the stress exceeds the elastic region which should be changed proportionally, the increase rate of the stress is slightly decreased, and the breaking point E〇 is reached soon. However, until E1, the ratio of E0· is relatively small, and it is impossible to obtain more than 45%. ' Thus, if the above-mentioned elastic ratio of the Wostian system non-mineral steel wire which is strengthened by cold drawing is processed, "Under 45%, the elastic area in the total strain is small", so it is not suitable for the core material 2 of the ore line accompanying high-speed movement or reverse movement, which is liable to cause a decline in life such as fracture or plastic deformation. The core material 2' of the present embodiment is adjusted by the above chemical composition: and further improved by the low temperature annealing treatment under the above conditions, and the elastic region α is enlarged, and the above-mentioned electrode can be provided. : A saw wire using the characteristics of 16 201240756. However, in order to completely increase the elastic ratio α to 100%, a combination of height adjustment techniques is required. Therefore, the elastic ratio α can be preferably set to 5 〇〜8 5 %, further preferably 5 5 〜. Further, the saw wire i composed of the core material 2 having such an increased tensile strength and elastic ratio α is accompanied by an instantaneous load of load even when used. In the case of the case, the elastic recovery can be performed in a wider area, and the range of application can be expanded. Such a characteristic is obtained by using a stainless steel wire of the Vostian system adjusted to the above chemical composition as a raw material. In the cold drawing process and the low temperature annealing process under the above conditions, it is more preferable to set the processing rate of the wire drawing processing to 93 to 97%. Further, in the low temperature annealing process, for example, Ar can be preferably used. In a non-oxidizing environment such as a gas, it is about 〇3 to 3 sec., preferably (heating temperature (.〇) x heating time (second)), the value is in the range of 4 〇 to 80, and the stock can be processed in a short time. In the case of the above-mentioned case, the heat treatment is performed in a state in which a back tension of 0.2% or less is added to the core material, and the wire drawing process is eliminated. Line volume It is also preferable to produce a slanting material having a straightness of, for example, about 50/500 mm or less, and it is also possible to improve the complicated straddle operation of the wire saw device. The saw wire 1 of the present invention is configured by fixing the polishing grain 4 for polishing to the core material 2 at a specific distribution density. The abrasive grain 4 can be used, for example, with 10 to 50#. Fine particles of the average particle size of m around the m-shaped diamond, sapphire, ruby, carbon carbide, CBN (B〇r〇nNitride, carbonized rotten) and other hard particles of 201210756 inorganic inorganic materials. Because of these abrasive grains 4 The irregular particle shape or the column shape is not circular, so the average particle size is, for example, averaged by meshing the lower mesh body by a plurality of laminated screen machines which are changed in stages by a specific aperture. In addition, for example, by "measuring by using micro track company (deleted laser diffraction type scattered light can be used to "penetrate any number of particles selected separately:" Two cattle one step two The maximum average diameter and the minimum diameter of the method in addition to its overall average number of measurements to obtain the "means of which obtained. Further, since the above-mentioned diamond particles are very hard and have a shape and an irregular shape of a sharp convex portion, they are used for cutting a wide range of materials, for example, as a stone wafer or a sapphire for LEDs. On the other hand, since the above-mentioned secret abrasive grains are particularly excellent in thermal stability, they can be preferably used, for example, in the production of a hard and high-brittle metal material such as a rare earth alloy such as titanium. The distribution amount or distribution state of the abrasive grains 4 is particularly limited, and can be arbitrarily set depending on the type of the cutting material and the cutting operation conditions. As a fixing method of the abrasive grains 4, for example, it is preferable that the coating material 3 is bonded to the surface of the core material 2 via the coating bonding material 3. The bonding material 3 is, for example, an electrolytic deposition plating treatment using a metal coating such as (4), forging, or copper ore, in addition to a resin-based adhesive. In particular, the above-mentioned wire 4 can be reliably and firmly fixed by the above-mentioned "can be used" and can be firmly adhered to the core material 2. Further, in the case of using a metal-coated material, the film-forming thickness of the film is generally adjusted to 5 to 30 # m, for example, a continuous electrodeposition plating method using a strand method is preferably employed. In this case, since it is not efficient to form a specific thickness by one ore treatment, and the unevenness of the plating state is large, it is difficult to obtain a uniform and good plating state, so it is generally preferable to divide into plural The second layer of mineral deposit method. The form of Fig. 1 is such that the second metal plating layer 3b can be further applied to the base plating layer 3a which has the lubricating action during the wire drawing process of the above-mentioned core material 2 by using the above-mentioned laminated plating method. In this case, the abrasive grains 4 are suspended in the respective plating baths by the filming of the second metal plating layer 3b at the same time as the filming of the second metal plating layer 3b. It is carried out by electrolytic deposition. According to such a laminate plating method, each of the plating layers 3a, 3b can be formed relatively thinly, resulting in a good plating state, and the base plating layer "is due to the mold from the subsequent wire drawing process. The strong pressure action, or the diffusion phenomenon of the processing heat, can realize the integration with the core material 2, and prevent & separation problems. Further, it is preferable to select the base metallization layer h and the second metal plating. The coating layer (for example, the same kind of metal) and the metal having a good blending property of each of the reinforcing layers 3b may have a good plating state which is not easy to cause peeling, cracking, pinholes, etc., although thick plating, as a better laminated plating structure. For example, it may be formed by the following three kinds of plating layers: a base shovel layer 3a, which is a forging layer 1b, 3b2, ... having a thickness of about 5 or less, which is mixed on the base plating layer. The nickel of the upper abrasive grain 4 is formed, and the third money is coated, and the entire surface of the abrasive grains 4 is coated with the same kind of key lock pair 3 (not shown). In addition, the special base is 201210756. The plating layer 3an is made of the above stainless steel wire as the core material 2 It is preferable because it has excellent compatibility and U, so that the peeling of the plating layer can be prevented, and the abrasive grains 4 are thinned by the above-described cold drawing and low-temperature annealing treatment, and are almost uniformly distributed and fixed in characteristics. The entire surface of the core material 2. The distribution density of the abrasive grains 4, for example, the length of the saw wire is set to about 5000 to 1_00. Further, if necessary, the abrasive grains 4 are used in addition to the Ni film or the thin thickness. In addition to the coated abrasive grains obtained by coating the surface of the core material, for example, it is also preferable to change the density locally along the longitudinal direction of the core material 2 as shown in Japanese Laid-Open Patent Publication No. Hei 9-254008. It is distributed in a spiral shape to improve the discharge performance of the coolant liquid for cutting, for example, during the cutting operation. An example of a preferred embodiment of the present invention will be described above, but the present invention is not limited thereto, and may be within the scope of each patent application. [Examples] [Test Example 1] [Characteristics of core material] As an example of the present invention, 11 kinds of stainless steel soft wires having a wire diameter of 8 mm as described in Table 准备 were prepared (Example materials A to K) , Each of the soft wires is coated with Cu having a thickness of 2/zm, and the underlying plating layer is processed as a cold-drawn wire of a full thickness to obtain a hard thin wire having a wire diameter of 18 mm. The wire drawing is performed by utilizing The diamond mold is continuously wet-type drawing machine, and the processing rate is equivalent to 95%. The surface state is the surface roughness (Ra) 〇〇5 20 201240756 ~0·1 0 //m is very shiny and smooth. In addition, no peeling of the underlying plating layer was observed for each of the samples, and both were good. 21 丨*M value 1 16.8 1 24.0 1 26.3 1 13.3 I 16.7 18.1 I14·1 1 | 16.9 I | 19.0 I I15·2 1 (12.3 I 16.8 28.7 65.9 14.26 2C+N 0.27 0.30 0.30 0.23 0.24 0.26 '0.19 0.18 1 0.26 [02Ί 0.29 0.27 0.08 0.10 i 1.66 Other Cu : 0.2 Nb : 0.16 Ti : 0.08 Cu : 0.2 A1 : 0.03 Nb : 0.12 Zr : 0.22 V : 0.21 Cu : 0.16 Cu : 0.2 1 Ο 1 0.35 ! 0.1. 0.55 0.25 rH r—H o 1 0.37 | 1 0.42 J 0.43 2.43 1 0.05 j 1 0.02 j 1 0.18 0.11 0.08 0.06 | 0.09 I | 0.06 | 1 0.06 0.14 | 1 0.15 | 0.05 1 l17·0 1 1 16.8 ] I18·3 1 16.8 | 16.4 18.1 I17·4 1 l17·0 1 l17·1 1 1 16.61 | 1 16.50 j 17.0 18.2 r—H Os V〇(N 00 in cn VO or—H | 6.08 | 1 6.01 j Os 8.42 10.46 1_ C/3 1 0.001 I 0.005 1 0.003 | 1 0.001 I 0.003 0.002 0.001 I | 0.003 1 0.001 I | 0.001 J 0.001 0.001 0.003 0.001 0.005 Ρη 1 0.03 | 1 0.035 1 1 0.03 | 1 0.008 ] 0.01 0.02 1 0.03 I | 0.02 ] | 0.028 | 1 0.025 ] | 0.024 | 0.03 0.021 0.023 0.006 CS 1 1.60 | 1.49 ! 1.91 1.32 2.08 1.11 1 0.60 I 1 1.50 | 0.82 On oo 1.60 1.48 0.49 ίΛ 0.61 | 0.80 1 0.83 | 0.65 cn 0.88 0.85 1.53 1_ 0.72 1.48 0.61 1_ 0.80 i 0.76 1 1 1 0.20 iu F —^ rH o 0.05 0.06 | 0.06 0.08 0.10 0.05 0.06 0.10 0.07 0.07 0.11 0.04 0.05 0.83 Example material A Example material B Example material C Example material D Example material E Example material F Example material G Example material H Example material I Example material J Example material K Jj W Comparative material b (SUS304) Comparative material c (SUS316) Comparative material d (piano line) Example material Comparative material zs I + 0S8 + ύ ε I Ν6+—(N+391 = ^※ 201240756 and then The material A to the κ line of the above-described warp-knit processing was subjected to a low-temperature annealing treatment in a strand-like manner at a temperature adjusted to an Ar environment of 4 〇 (rc = ^:). Each of the treated wires obtained thereby: various characteristics are shown in Table 2. Further, as a comparative example material of the present invention, the material before the low-temperature annealing treatment (Comparative Example 枓a) in the material A of the above-mentioned Example, and the sus3〇4 which was subjected to low-temperature treatment after the wire drawing were used (Comparative Example Material Magic and SUS316 (Comparative Example c) and a commercially available mineral line containing a 8%.8% C piano line (Comparative Example d). 23 201240756

201240756 Table 2 shows the tensile strength and elongation of the obtained core material and the elastic ratio in the tensile test (2, various properties of the amount of the lost field and the twist value caused by the processing. The above tensile strength and elongation characteristics are It is carried out according to the tensile test according to JIS-Z2241, and the above elastic ratio α is based on the stress-strain diagram in the tensile test, and is derived from the substantial proportion region (E1) of the deviation reference line y and the total until the fracture. The above calculation formula of the relationship of the dependent variable (e〇) is calculated. Since the larger the ratio, the wider the elastic range, the higher the tension and the higher the rigidity, which contributes to the high-efficiency cutting operation. The saturation magnetic flux density obtained by the measuring device for the processing characteristics was determined. The winding value was "mounted on each of the torsion testing machines with a gauge length of 36 mm, and the one end side of the screw was twisted until the torsional fracture occurred. The number of twists was evaluated, and the larger the number of twists, the more excellent the toughness. As shown in the results of Table 2, the above-mentioned materials of the examples of the present invention are each of the above-mentioned steel wires. (4) The degree is 2_~32, which is high intensity and has magnetic I·sheng and has excellent return value of 50~65 times/m. In addition, regarding the elastic ratio α, the embodiment material is also available. The above characteristics: The characteristics of the stainless steel wire far exceeding the comparative materials a to c have characteristics similar to the comparative example d of the piano wire using the prior material. The material of the example material A and the comparative material a can be used by The same characteristic stress-strain diagram of the same 'no-induction low-temperature annealing treatment is: in order to find that the effect of adding Alvru No. 70 is added, and in the thin wire material of the example material F Tensile test 25 201240756 Stress-strain relationship. As a result of the above results, in the above-mentioned low-temperature annealing material of the present invention, although the overall elongation property is slightly reduced, the tensile strength is further increased, and the elastic ratio is also It is further improved by about 20%. Further, it is understood that the material of the example material F to which the third element is added is more excellent. Further, the thinner dotted line in the figure is the comparative material a which is characterized by the wire drawing. The solid line was subjected to the characteristics of the example material A subjected to the low temperature annealing treatment, and the dotted line was attached with the characteristics of the material f of the example material of the third element, and the improved characteristics were found as compared with the comparative material. Therefore, if the saw wire having the core material having the elastic ratio α increased is used, the sling can be carried out with a higher tensile load in a wider elastic region, so that the workpiece can be prevented from being slacked and the like. The cutting operation of the load can improve the cutting efficiency. In particular, the advantage of the material F of the embodiment in which the third element is added is found. Further, according to the test, the following result can be obtained: the above-mentioned elastic ratio α is increased, and the processing is caused by the field. The amount of the bulk is about 3〇~58%, and the processing strain in the wire drawing process is eliminated to stabilize the structure. Therefore, the toughness characteristic is obtained with a toughness characteristic of 50 to 66 times, which contributes to the life of the repeated fatigue. . Further, the linearity of the thin wire material can be improved, for example, to about 5 to 50 mm/L to about 500 mm. The usability and workability are excellent. [Test Example 2] [Corrosion resistance of core material] Next, in order to evaluate the corrosion resistance of the materials of the above respective examples and comparative materials, the core material for which the surface film was once removed was subjected to the following conditions. 26 201240756 = Jis-G () 573 of the rot # test. The measurement result is described in the above test method. The test method is compared with the test method. The test solution is used to compare the corrosion rate of the 65% nitric acid solution in the boiling test solution for 48 hours. The corrosion reduction is less than 1 g/m2.h) △ slightly good (the amount of subtraction is not reached g/m2.h) The degree of X is not good (corrosion reduction is l〇Ag/m2.h or more) According to the test of the rot, the materials of the examples have relative A good resistance button has a particular advantage over the piano line of the comparative material d. Therefore, even if the plating layer is electrolytically deposited on the surface to contact the external environment, the plating layer can be prevented from peeling off or rusting due to the corrosion resistance of the core material itself. 9 [Test Example 3] [Twist test of saw wire] The materials of the above-mentioned examples A, F, and the comparative examples a and b, the piano of the comparative example (4) d, and (4) were the core materials of the respective materials. Electrodeposition was carried out on the surface of the diamond abrasive grains suspended with an average particle diameter of 30" m. Further, the base layer "layer" of the CU metal is applied to the surface of each of the core materials of the above-mentioned residual steel to record the brass wire. Then, each core material was pre-rinsed with an organic acid solvent and cleaned, and the second layer of nickel plating was further applied by electrolytic plating using nickel sulfamate. By the plating, the diamond abrasive grains are fixed to the surface of the material 2 in a distribution state of a specific density, and the distribution density thereof is adjusted to be almost 28'-32, and the surface is /m. Further, the film thickness of the above-mentioned layer is 15 27 201240756 to 25 v m. With respect to the saw wire thus subjected to the plating treatment, the plating state was confirmed by the peeling test of the kink test for the adhesion of the plating layer. The kink test was conducted by observing the state of the plated surface when the wire was wound around the wire of the wire diameter with a magnifying microscope. As a result of the test, no peeling or cracking of the layer which was particularly carried out was found. Further, it was confirmed that in the case of a good plating state, peeling of the anchoring abrasive grains or the like was hardly observed, and the abrasive grains were firmly fixed by the nickel plating layer. [Test Example 4] [Cutting performance of saw wire] Next, in order to evaluate the cutting performance of each of the saw wires obtained above, as shown in the figure, ((4) cutting pitch (1) 3 mm interval was hanged in a commercially available wire cutting device 'A sapphire ingot to be cut (a rod having a diameter of 6 inches X and a length of 100 mm) was supplied with a water-soluble coolant, and a cutting test was carried out under the following conditions. Load tension 20~40N (target 3 5N), moving speed of mine line 800m/min. Feeding speed of broken cutting material 10mm/h In this test, compare the characteristics of core material, set negative force 2〇~ Under the condition of 5〇N, it takes time and break to cut the pingke with the cutting of the cut object & 丨μ φ. It can be confirmed that the material of the material of the embodiment of the present invention is completed by cutting the cut object, and there is no disconnection or the like, and has sufficient characteristics. In the comparative example material, the use of the piano line in the previous type, although using the 28 201240756 steel wire, was accompanied by a broken wire due to the repeated fatigue in the comparative material a, and the strength was insufficient in the comparative example b. With the increase in the cutting time, no more than the characteristics of the materials of the above examples were obtained. Further, for the saw wire after the cutting operation, the surface was observed after the humidity of 30% was maintained for one week, and as a result, defects such as money and money were not particularly found in the material sawing wire of this example. On the other hand, rust having an area ratio of about 1% is found in the piano wire saw wire, and the significance of the present invention can be confirmed in this respect. [Test Example 5] [Saw wire for titanium alloy] For each of the stainless steel soft wires (wire diameter 〇.6 mm) of the example materials B, H and κ used in the above test example i, a plating of 2#m was applied as a plating The base plating was performed by wet cold drawing to make the wire diameter as thin as 0.16 mm to obtain a hard thin wire. The processing ratio was 93% and had an average surface roughness of 0.08 to 0.13 βιπ. The hard thin wires of the wire processing state were subjected to a low temperature annealing treatment at a heat treatment temperature of 35 〇 to 55 〇〇 c by a strand heating device of an Ar environment. The change in the tensile strength of each of the obtained treated fine wires and the change in the elastic ratio α of the example material 相对 which is relatively low in the above m value are shown in Fig. 5 . Then, the treated fine line was obtained by electrolytic deposition treatment in which the CBN abrasive grains having an average particle diameter of 30 // m were suspended in the electrolytic deposition plating solution in the same manner as in Test Example 3 described above. A saw wire with an average distribution density of 27,000 to 29,000 / m uniformly fixed. In order to evaluate the cutting performance of the thus obtained saw wire, a powder compacted agglomerate (formed size 10Wxl8Tx60L: unit mm) was prepared as a cut object, and a strand of the cut object was arranged side by side (total cut) Width: 100 mm) and installed in a commercially available wire saw device. On the other hand, as shown in Fig. 6, the wire was wired at a cutting pitch of T = 4 mm to perform a cutting test. The test conditions are as follows. Further, the saw wire of the comparative materials a and b used in the above Test Example 4 was used as the comparative material in the cutting test.

The load tension is set to 3 5N. The moving speed is 80 〇m/min· every 20 seconds, and the reverse reciprocating movement is performed (in which the 'new line delivery amount is 10 m/min.) The working feed rate is 25 mm/h. The graph shown in Fig. 4β in the figure 'horizontal axis cutting operation time (minutes)' vertical axis represents the amount of cut per unit time (deep hunger). It was confirmed that the materials of the respective embodiments of the present invention were almost stable from the beginning of the cutting test and had relatively excellent cutting performance. On the other hand, the right side of the saw wires of the comparative examples a and b did not provide the same sufficient cutting performance as in the above-described Example 4. In addition, since the materials of the present embodiment are all subjected to the above-described low-temperature annealing treatment, the linearity of the saw wire when it is drooping in a natural state is very excellent, and it is 20 to 40 mm/lm, so the surface state of the cut surface is also smooth. Good, for example, the surface roughness is about 0 4 m. [Industrial Applicability] The ore line of the present invention and the method for producing the same are characterized in that a high-strength fine wire is used as a core material. The high-strength fine wire is a Vostian 30 201240756 stainless steel wire having a high c and n added thereto. The strength is excellent, the amount of the loose body in the field is suppressed, and the stress-strain property is improved, so that the cutting which imparts rigidity to the cut object can be obtained, and the life can be extended. As for the range of application, in addition to diamond or CBN abrasive grains, it is also effective as a rare earth alloy such as the above-mentioned tantalum or sapphire, or even a hard alloy which is also a hard and highly brittle material. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front elevational view showing, in an enlarged manner, one form of a saw wire of the present invention. Figure 2 is an enlarged cross-sectional view thereof. Fig. 3 is an example of a graph of stress-strain characteristics of the core material of the present invention. Fig. 4 is a view showing an example of a graph comparing experimental results of cutting performance. Fig. 5 is a line diagram showing changes in tensile characteristics with respect to the low temperature annealing temperature of the core material. The figure shows a schematic view of the cutting state by the saw wire. Fig. 7 is a state diagram for explaining a state of deflection of a saw wire that is hung between work rolls. [Main component symbol description] ![:' 1 ' 5 5, TW saw wire 2 core material 2 Α metal thin wire 3 covering material 3a base forging layer 3b second metal plating layer 4 abrasive grain 31 201240756 R work roll W, G Cut object h deflection T cutting pitch P fine abrasive grain W metal core wire El elastic strain amount E0 fracture total strain y baseline 32

Claims (1)

201240756 VII. Patent application scope: 1. The seeding line ' is attached to the surface of the core material composed of long thin metal wires, and the particle-fixed type misalignment of the particle-shaped cutting abrasive grains is fixed via the coating material; A stainless steel wire of a Vostian system, in terms of mass%, the steel wire contains: C: 0.05 to 0.15 Si: ^ 2.0 Μη: ^ 3.0 Ni: 6.0 to 9.5 Cr: 16.0 to 19.0 and N: 0.005 to 0.25%, and 2C + N is 0.1 5 to 0.40%, and the remainder is composed of Fe and unavoidable impurities; and the tensile strength (σ ) of the core material is 2500 to 3500 MPa, and the stress-strain diagram in the tensile test is The elastic ratio α ( { ( Ε 1 / Ε 0) xlOO}) of the strain amount (E1 ) of the elastic proportional region and the total strain (E0) until the break is 45% or more. 2. The saw wire of claim 1, wherein the core material further comprises any one or more of the following three elements (I), (Π), and (dish): (I): Λ1, Nb , Ti, Ta, Zr! The above are respectively 〇〇1 -^# 0.30% (Π) : V : 0_1〇~0.5% (m ) : Mo : 0_2 ～2.0% or Cu : 0.15 〇 〇·8% of any one or more 0 33 201240756 3. The saw wire according to claim 1 or 2, wherein the core material has the following formula 55 to 28 0/〇, 16C + 2Mn + 9Ni - 3Cr + 8Μο + 15Ν. The sawing wire according to any one of claims 1 to 3, wherein the core material has a volume of 30 to 90% of the mass of the field. 5. The ore of any one of claims 1 to 4, wherein the elastic ratio α is 55 to 80%. The sawing wire according to any one of claims 1 to 5, wherein the covering material is formed by electrolytic deposition of any of Cu or Ni. 7. The saw wire of claim 6, wherein the cut abrasive grain is a diamond particle or a CBN particle which is previously coated with a film material of any one of Ni, SiC or TiC. 8. A method of producing a saw wire for producing a particle-solid type ore having a particle-shaped cut abrasive grain adhered to a surface of a core material composed of a fine metal wire via a coating material, which has the following stages: a) Preparation stage: Prepare the stainless steel wire of the Vostian system, in terms of mass%, the steel wire contains: C. 〇.〇5 ～0.15 Si: each 2.0 Μη: ^3.0 Ni : 6.0~1〇_〇Cr· 16.0~19.0 And >^'0.〇〇5~〇.25. /. And 2(: + 1^ is adjusted to 〇15~〇4〇%, 34 201240756 The remainder is composed of Fe and unavoidable impurities; b) Processing stage: the steel wire is processed at a rate of 85% or more Performing cold drawing processing to make a long strip of stainless steel; c) heat treatment stage: the stainless steel thin wire is subjected to low temperature annealing at a temperature of 3 〇〇 to 6 Torr and additional reverse tension, thereby obtaining the core material having the following characteristics. : Tensile strength (σ): 25〇〇~35〇〇MPa and the strain amount (E丨) of the elastic proportional region of the stress-strain diagram in the tensile test and the total strain (E0) until the fracture The elastic ratio α (= "(E1/E〇) χ1〇〇}) is 45% or more; and d) the fixation phase. Further electrolytically depositing the core material in the metal plating solution in which the abrasive particles are suspended The abrasive particles are fixed to the surface of the core material at a specific distribution density. 9. The method of manufacturing the i-line of claim 8 wherein the core material further comprises the third element of the following (I), (Π), and ( melon), (I): Any one or more of Ab Nb, Ti, lower 11 Ta, and Zr are respectively 〇.〇1 to 0.30% (Π). V· 〇·ΐ〇~〇5〇/. ()〇 〇.2~2.〇〇/. Or 011: 〇15~()8% of any one of the above 0. 10. In the eighth section of the patent application, the core material is previously coated on the surface of the substrate. Or a method of manufacturing a saw wire of the present invention, which has a different kind of gold from the metal plating layer. 11. The method of manufacturing a saw wire according to any one of claims 8 to 1 wherein the heat treatment is performed. In the low-temperature annealing treatment of the stage, the value of (heating temperature (°C) X heating time (second)) is in the range of 40 to 80. 36