TW202037422A - Method for manufacturing metal wire and structure thereof capable of forming a crystal layer having pyroelectricity to improve the efficiency of electrical discharge machining - Google Patents
Method for manufacturing metal wire and structure thereof capable of forming a crystal layer having pyroelectricity to improve the efficiency of electrical discharge machining Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/005—Continuous casting of metals, i.e. casting in indefinite lengths of wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/042—Manufacture of coated wire or bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/045—Manufacture of wire or bars with particular section or properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21C9/00—Cooling, heating or lubricating drawing material
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/04—Wires; Strips; Foils
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0607—Wires
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Abstract
Description
本發明係關於一種金屬線之製造方法及其結構,尤指一種應用於線切割機使用之金屬線。The present invention relates to a manufacturing method and structure of a metal wire, in particular to a metal wire used in a wire cutting machine.
應用於放電加工之線切割機所使用的金屬線,在早期是以黃銅線為主,但由於黃銅線在進行加工時,因氣化所產生的銅微粒會積存在工件的加工面,形成層積,而使工作物表面增厚,影響工作物表面的硬度及粗糙度。另外,當銅微粒堵塞於金屬線與加工件間時,易因短路或無法冷卻,造成金屬線斷裂的問題。The metal wire used in the wire cutting machine used in electrical discharge machining was mainly brass wire in the early days. However, when the brass wire is processed, the copper particles generated by vaporization will accumulate on the processing surface of the workpiece. The formation of stratification increases the thickness of the surface of the work, which affects the hardness and roughness of the work surface. In addition, when copper particles are blocked between the metal wire and the workpiece, it is easy to short-circuit or fail to cool, causing the metal wire to break.
金屬線在放電加工時,若其表面產生崩解或因表面具有裂痕或凹洞,將有助於因放電氣化所產生之微粒為介質液沖出,也可使金屬線與介質液的接觸面積增加,降低金屬線的工作溫度,以降低斷線的可能並增加使用壽命。緣此目前已有於芯線之表面鍍鋅之金屬線揭示;上述鍍鋅之金屬線,藉由鋅的特性,在拉伸的過程中,於外表形成無數的裂痕或凹洞。因此,應用在進行線放電加工時,外層的鋅,部分會被氣化成微粒而崩解,所崩解的氣化微粒可循裂痕或凹洞向外由介質液帶離,改善原黃銅線的缺點,達到降低斷線及增加工作效率的效果。During electrical discharge machining, if the surface of the metal wire is disintegrated or the surface has cracks or cavities, it will help the particles generated by the electrical discharge gasification to be washed out by the dielectric liquid, and the contact area between the metal wire and the dielectric liquid Increase and reduce the working temperature of the metal wire to reduce the possibility of wire breakage and increase the service life. For this reason, the metal wire galvanized on the surface of the core wire has been disclosed; the above-mentioned galvanized metal wire, due to the characteristics of zinc, forms numerous cracks or cavities on the surface during the stretching process. Therefore, when used in wire electrical discharge machining, part of the zinc in the outer layer will be vaporized into particles and disintegrated. The disintegrated vaporized particles can be carried away by the dielectric liquid along the cracks or cavities, improving the original brass wire The shortcomings of, achieve the effect of reducing disconnection and increasing work efficiency.
鍍鋅之金屬線,目前在製造上有兩種,如我國M564493、I391197所示,是以電鍍的方式於一黃銅芯線的表層,附著一層鍍鋅層,再經拉伸、退火,以於該鍍鋅層的表面產生裂痕或凹洞。惟上述以傳統電鍍方式的製造方法,在製造上必須排出電解液、溶劑等帶有強酸或強鹼的廢水,對環境造成重大的污染。There are currently two types of galvanized metal wires in manufacturing. As shown in my country's M564493 and I391197, they are electroplated on the surface of a brass core wire, and a galvanized layer is attached, and then stretched and annealed to Cracks or cavities are generated on the surface of the galvanized layer. However, the above-mentioned manufacturing methods using traditional electroplating methods must discharge electrolytes, solvents, and other waste water with strong acids or alkalis, causing significant pollution to the environment.
另一種製造方式,如中國新型專利CN 1078831C號或美國專利第4,686,153號所示,是採用浸鍍的方式,將黃銅芯線浸入鋅的溶池中,但是此一浸鍍方法,雖然可以降低傳統電鍍排放廢水的污染問題,但必須備有熔爐以對鋅進行熔解。Another manufacturing method, as shown in Chinese New Patent No. CN 1078831C or U.S. Patent No. 4,686,153, is to immerse the brass core wire in the zinc bath by immersion plating. However, this immersion plating method can reduce the traditional There is a pollution problem of electroplating wastewater, but a furnace must be equipped to melt zinc.
不論是以電鍍或浸鍍的方式,於芯線表面所產生的鋅覆著層,其表面是呈現非常光滑平整,在顯微鏡下只能發現極少的裂痕,必須期待在拉伸的過程中,在其表面產生更多的裂痕。然而,實際上,目前所揭示的鍍鋅金屬線,在其鍍鋅層表面上所產生的裂痕與凹洞深度結構並不明顯,因此,放電加工中所生的氣化微粒還是會發生層積,沖刷性雖較單純銅線佳,但仍有改善空間。Whether it is electroplating or immersion plating, the surface of the zinc coating on the surface of the core wire is very smooth and flat, and only a few cracks can be found under the microscope. It must be expected that during the stretching process, More cracks on the surface. However, in fact, the depth structure of cracks and pits on the surface of the galvanized metal wire disclosed so far is not obvious. Therefore, the vaporized particles generated in the electrical discharge machining will still be laminated , Although the scourability is better than pure copper wire, there is still room for improvement.
本案發明人有鑑於此,乃加予研究,揭示出本發明所示金屬線之製造方法及其結構。In view of this, the inventor of the present case conducted research and revealed the manufacturing method and structure of the metal wire of the present invention.
本發明之目的旨在提供一種金屬線之製造方法,是以鋅含量40%以下,直徑1.2mm以上的黃銅線為芯線,並於該芯線的表面,以鋅含量大於75%的金屬為鍍層基材,對芯線施予至少一次的噴鍍,以於該芯線的表面形成由該鍍層基材經霧化後顆粒所堆疊構成的披覆層,完成母線的製作,再將該母線經拉伸成直徑0.15mm~0.35mm的金屬線。The purpose of the present invention is to provide a method for manufacturing a metal wire, which uses a brass wire with a zinc content of less than 40% and a diameter of 1.2mm or more as the core wire, and the surface of the core wire is coated with a metal with a zinc content of more than 75% The substrate is sprayed on the core wire at least once to form a coating layer on the surface of the core wire that is composed of particles of the plated substrate after being atomized, complete the production of the bus bar, and then stretch the bus bar Into a metal wire with a diameter of 0.15mm~0.35mm.
本發明所揭示金屬線之製造方法,於該芯線的表面,是以兩種或兩種以上不同鋅含量的鍍層基材,同時對該芯線進行噴鍍,使所形成的披覆層,是由兩種或兩種以上不同鋅含量的鍍層基材霧化後之顆粒所構成。上述的鍍層基材可為純鋅線或鋅合金線。The manufacturing method of the metal wire disclosed in the present invention uses two or more coating substrates with different zinc content on the surface of the core wire, and the core wire is sprayed at the same time, so that the coating layer formed is made of It is composed of particles after atomization of two or more coating substrates with different zinc content. The aforementioned coating substrate can be a pure zinc wire or a zinc alloy wire.
本發明所揭示金屬線之製造方法,其中令該芯線於進行表面噴鍍前,預熱至350℃~420℃,使在噴鍍時,霧化後的鍍層基材顆粒可以順利附著或嵌入於該芯線表面,穩定形成該披覆層,也有益於該芯線表面與該披覆層間生成α+β的雙向結晶結構。The manufacturing method of the metal wire disclosed in the present invention, wherein the core wire is preheated to 350°C~420°C before surface spraying, so that the atomized coating substrate particles can be smoothly attached or embedded in the spraying The surface of the core wire stably forms the coating layer, which is also beneficial to the formation of an α+β bidirectional crystal structure between the surface of the core wire and the coating layer.
本發明所揭示金屬線之製造方法,其中令該母線是於100℃~150℃拉伸成直徑0.8mm,再於常溫或200℃~300℃拉伸至直徑0.15mm~0.35mm後,再經250℃~350℃、1~5小時的退火,而得該金屬線。由於鋅在拉伸過程中易於表面產生破碎,因此該母線在拉伸至0.15mm~0.35mm的成型過程中,會於表面產生裂痕或破洞,這些裂痕與破洞在放電加工時會增加與放電介質的接觸面積,增加其散熱性,同時有助於放電加工中對於金屬線的沖洗性,有益於加工廢削的排除,以避免該金屬線在放電加工的過程中發生斷裂。上述的放電加工,特別是指線切割(Wire Electrical Discharge Machining,wire EDM)。The manufacturing method of the metal wire disclosed in the present invention, wherein the bus bar is stretched at 100℃~150℃ to a diameter of 0.8mm, and then stretched at room temperature or 200℃~300℃ to a diameter of 0.15mm~0.35mm, and then passed Anneal at 250℃~350℃ for 1~5 hours to obtain the metal wire. Because zinc is easy to be broken on the surface during the stretching process, the busbar will have cracks or holes on the surface during the forming process of stretching to 0.15mm~0.35mm. These cracks and holes will increase and The contact area of the discharge medium increases its heat dissipation, and at the same time helps the flushing of the metal wire in the electric discharge machining, which is beneficial to the elimination of processing waste and avoids the metal wire from breaking during the electric discharge machining. The above-mentioned electrical discharge machining specifically refers to Wire Electrical Discharge Machining (wire EDM).
本發明所揭示金屬線之製造方法,令該金屬線於退火過程中趨近一感應線圈,令該感應線圈可通以110V~240V的電壓。藉由感應磁場使披覆層上之氧化鋅層結晶方向趨於一致,有利於具熱電性(pyroelectricity)之晶體層生成,以利於放電加工效率。The manufacturing method of the metal wire disclosed in the present invention makes the metal wire approach an induction coil during the annealing process, so that the induction coil can be applied with a voltage of 110V~240V. The crystalline direction of the zinc oxide layer on the cladding layer tends to be consistent by inducing the magnetic field, which is beneficial to the generation of a pyroelectric crystal layer, which is beneficial to the efficiency of electrical discharge machining.
本發明所揭示金屬線之製造方法,其中該芯線係多數滾輪導引,並通過該噴鍍之範圍,即在一次噴鍍的過程中,便完成該披覆層的噴鍍作業。或者令該芯線係由多數滾輪導引,並多次通過該噴鍍之範圍,即在多次噴鍍的過程中,完成該披覆層的噴鍍作業。In the method of manufacturing the metal wire disclosed in the present invention, the core wire is guided by a plurality of rollers and passes through the spraying range, that is, in a spraying process, the spraying operation of the coating layer is completed. Or the core wire is guided by a plurality of rollers and passes through the spraying range for many times, that is, the spraying operation of the coating layer is completed in the process of multiple spraying.
本發明所揭示金屬線之製造方法,其中該母線之披覆層厚度為10μm~100μm。The manufacturing method of the metal wire disclosed in the present invention, wherein the thickness of the coating layer of the bus bar is 10 μm-100 μm.
本發明之目的旨在提供一種金屬線之結構,係含有:一芯線,係取自鋅含量小於40%之黃銅線;一披覆層,附於該芯線表層,該披覆層是由鋅含量大於75%的多數顆粒附著於該芯線,並拉伸成型,於各該批覆層上是形成有裂痕或凹洞;以及一具熱電性(pyroelectricity)之晶體層,生成於該披覆層外表。The purpose of the present invention is to provide a metal wire structure, which contains: a core wire, which is taken from a brass wire with a zinc content of less than 40%; a coating layer attached to the surface layer of the core wire, the coating layer is made of zinc Most particles with a content greater than 75% are attached to the core wire and stretched to form. Cracks or cavities are formed on each batch of coating layers; and a pyroelectricity crystal layer is formed on the surface of the coating layer .
本發明所揭示金屬線之結構,其中該披覆層,是以兩種或兩種以上不同鋅含量的鍍層基材,同時對該芯線進行噴鍍,並拉伸成型。使兩種不同鋅含量的鍍層基材所霧化後的顆粒,可以重疊或混雜地附著在該芯線表面。In the structure of the metal wire disclosed in the present invention, the cladding layer is made of two or more coating substrates with different zinc content, and the core wire is sprayed and stretched at the same time. The particles atomized by two coating substrates with different zinc content can be overlapped or mixed on the surface of the core wire.
本發明所揭示金屬線之製造方法及其結構,可由以下之說明及所附各圖式得以明晰。The manufacturing method and structure of the metal wire disclosed in the present invention can be clarified by the following description and accompanying drawings.
請參閱圖1、4所示,本發明係有關於一種金屬線之製造方法,是以鋅含量40%以下,直徑1.2mm以上的黃銅線為芯線(10),並於該芯線(10)的表面,以鋅含量大於75%的金屬為鍍層基材,對芯線(10)施予至少一次的噴鍍,以於該芯線(10)的表面形成由該鍍層基材經霧化後顆粒(21)所堆疊構成的披覆層(20),完成母線的製作,再將該母線(L’)拉伸成直徑0.15~0.35mm的金屬線(L),完成本發明所揭示之金屬線(L)成品。Please refer to Figures 1 and 4, the present invention relates to a method for manufacturing a metal wire, which uses a brass wire with a zinc content of less than 40% and a diameter of 1.2mm or more as the core wire (10), and the core wire (10) The surface of the core wire (10) is sprayed at least once with a metal with a zinc content of more than 75% as the coating substrate, so as to form particles on the surface of the core wire (10) that are atomized by the coating substrate ( 21) The stacked cladding layer (20) completes the production of the bus bar, and then stretches the bus bar (L') into a metal wire (L) with a diameter of 0.15 to 0.35 mm to complete the metal wire disclosed in the present invention ( L) Finished product.
如圖1、4、5所示,由於本發明所揭示金屬線之製造方法,其中該披覆層(20)是由該鍍層基材經霧化後顆粒(21)所堆疊而成,因此在顆粒(21)與顆粒(21)間是會產生結合的交界面或空隙,當母線(L’)在拉伸(或抽線)的過程中,有益於該披覆層(20)產生裂痕或凹洞(C)的產生。如圖5所示,本發明成型的金屬線,該鍍層基材經霧化後顆粒(21)呈現堆疊狀,在顆粒與顆粒間產生有裂痕或凹洞(C)。As shown in Figures 1, 4, and 5, since the method for manufacturing the metal wire disclosed in the present invention, the coating layer (20) is formed by stacking particles (21) after the coating substrate is atomized, so Between the particles (21) and the particles (21) is a combined interface or gap. When the bus bar (L') is stretched (or drawn), it is beneficial for the coating layer (20) to produce cracks or The generation of cavities (C). As shown in Fig. 5, in the metal wire formed by the present invention, the particles (21) of the coated substrate after atomization are stacked, and cracks or cavities (C) are formed between the particles.
如圖1、6、7所示,本發明所揭示金屬線之製造方法,其中於該芯線(10)的表面,是以兩種或兩種以上不同鋅含量的鍍層基材,同時對該芯線(10)進行噴鍍,使所形成的披覆層(20),是由兩種或兩種以上不同鋅含量(皆大於75%)的鍍層基材霧化後之顆粒(21a、21b)所構成。如圖6、7所示,當本發明以兩種不同鋅含量的鍍層基材,同時對該芯線(10)進行噴鍍,使所形成的披覆層(20)是由兩種不同鋅含量的顆粒(21a、21b)混雜地堆疊附著於該芯線上,由於鋅含量不同,物理特性便不相同,在拉伸過程中,所產生的延展性也不相同,而有助於該披覆層(20)產生裂痕或凹洞(C)。As shown in Figures 1, 6, and 7, the manufacturing method of the metal wire disclosed in the present invention, wherein the surface of the core wire (10) is coated with two or more different zinc content coating substrates, and the core wire (10) Perform spraying, so that the formed coating layer (20) is composed of particles (21a, 21b) atomized from two or more different zinc content (all greater than 75%) of the coating substrate constitute. As shown in Figures 6 and 7, when the present invention uses two coating substrates with different zinc content, the core wire (10) is spray-plated at the same time, so that the formed coating (20) is composed of two different zinc content The particles (21a, 21b) are mixedly stacked and attached to the core wire. Due to the different zinc content, the physical properties are different. During the stretching process, the ductility produced is also different, which helps the coating layer (20) Cracks or pits are generated (C).
本發明所揭示述金屬線之製造方法,其中令該芯線(10)於進行表面噴鍍前,預熱至350℃~420℃,使該母線(L’)之表面接近鍍層基材之溶點,在噴鍍時,可獲得較好的附著效果。The manufacturing method of the metal wire disclosed in the present invention, wherein the core wire (10) is preheated to 350°C~420°C before surface spraying, so that the surface of the bus bar (L') is close to the melting point of the plating substrate , During spraying, better adhesion effect can be obtained.
本發明所揭示金屬線之製造方法,其中令該母線(L’)是於100℃~150℃拉伸成直徑0.8mm,再於常溫200℃~300℃拉伸至直徑0.15mm~0.35mm,並經250℃~350℃、1~5小時的退火,而得該金屬線(L)。The manufacturing method of the metal wire disclosed in the present invention, wherein the bus bar (L') is stretched to a diameter of 0.8mm at 100°C to 150°C, and then stretched to a diameter of 0.15mm to 0.35mm at a normal temperature of 200°C to 300°C, And after annealing at 250℃~350℃, 1~5 hours, the metal wire (L) is obtained.
上述母線(L’)於100℃~150℃條件下進行第一段拉伸,其主要目的是要使披覆層(20)可以獲得較佳的延展性,使線材之表面得以平整。而後段拉伸至0.15mm~0.35mm的過程,可以在常溫或200℃~300℃之溫度下進行,使該披覆層的表面產生裂痕或凹洞(C)。本發明依通常線切割機的需求,金屬線的線徑通常為0.15mm、0.2mm、0.25mm、0.3mm、0.35mm,惟本發明並不自限該金屬線之線徑。The above-mentioned bus bar (L') is stretched at 100°C to 150°C for the first stage, the main purpose of which is to make the cladding layer (20) obtain better ductility and make the surface of the wire smooth. The subsequent stretching process to 0.15mm~0.35mm can be carried out at room temperature or 200℃~300℃ to cause cracks or cavities on the surface of the coating (C). According to the requirements of the conventional wire cutting machine, the wire diameter of the metal wire is usually 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, but the present invention does not limit the wire diameter of the metal wire.
本發明所揭示金屬線之製造方法,令該金屬線於退火過程中趨近一感應線圈,並令該感應線圈通以110V~240V的電壓。由於在退火過程中,披覆層(20)的結晶將重新排列,藉由感應線圈磁場的趨近,使披覆層(20)上之氧化鋅層結晶方向趨於一致,以生成具熱電性(pyroelectricity)之晶體層,以利於放電加工效率。The manufacturing method of the metal wire disclosed in the present invention makes the metal wire approach an induction coil during the annealing process, and the induction coil is supplied with a voltage of 110V~240V. In the annealing process, the crystals of the cladding layer (20) will be rearranged. By the approach of the magnetic field of the induction coil, the crystal directions of the zinc oxide layer on the cladding layer (20) tend to be consistent, so as to generate thermoelectricity (pyroelectricity) crystal layer to facilitate the efficiency of electrical discharge machining.
本發明所揭示金屬線之製造方法,如圖2所示,是可令該芯線(10)由多數滾輪(30)導引,並一次性通過該噴鍍範圍(S),完成噴鍍製程。或者如圖3所示,令該芯線(10)由多數滾輪(30)導引,並多次通過該噴鍍範圍(S)後完成噴鍍製程。藉由一次或多次噴鍍以決定噴鍍的厚度與均勻度。The manufacturing method of the metal wire disclosed in the present invention, as shown in FIG. 2, can make the core wire (10) guided by a plurality of rollers (30) and pass the spraying range (S) at one time to complete the spraying process. Or, as shown in Figure 3, the core wire (10) is guided by a plurality of rollers (30), and the spraying process is completed after passing through the spraying range (S) many times. One or more sprays are used to determine the thickness and uniformity of spraying.
本發明所揭示金屬線之製造方法,其中經噴鍍後於該母線(L’)之披覆層(20)厚度為10μm~100μm。最佳為10μm~30μm。The manufacturing method of the metal wire disclosed in the present invention, wherein the thickness of the coating layer (20) on the bus bar (L') after spraying is 10 μm-100 μm. The best is 10μm~30μm.
如圖4~7所示,本發明所揭示之金屬線之結構,係含有:一芯線(10),係取自鋅含量小於40%之黃銅線;一披覆層(20),附於該芯線(10)表層,該披覆層(20)是由鋅含量大於75%的鍍層基材霧化後之顆粒堆疊構成,並經與該芯線(10)拉伸成型,以於各該批覆層(20)上是形成有裂痕或凹洞(C)。As shown in Figures 4-7, the structure of the metal wire disclosed in the present invention contains: a core wire (10), which is taken from a brass wire with a zinc content of less than 40%; and a coating layer (20) attached to The surface layer of the core wire (10), the coating layer (20) is composed of particles stacked after atomization of the plating base material with a zinc content of more than 75%, and is stretched and formed with the core wire (10) to cover each batch Cracks or cavities (C) are formed on the layer (20).
本發明所揭示金屬線之結構,令該披覆層(20)於一退火環境中趨近一感應磁場,以生成具熱電性(pyroelectricity)之晶體層。The structure of the metal wire disclosed in the present invention makes the cladding layer (20) approach an induced magnetic field in an annealing environment to generate a pyroelectricity crystal layer.
如圖6、7所示,本發明所揭示金屬線之結構,其中該披覆層(20),是以兩種或兩種以上不同鋅含量的鍍層基材,同時對該芯線(10)進行噴鍍,使所形成的披覆層(20)是由兩種或兩種以上不同鋅含量的鍍層基材霧化後之顆粒(21a、21b)所構成。As shown in Figures 6 and 7, the structure of the metal wire disclosed in the present invention, wherein the cladding layer (20) is based on two or more coating substrates with different zinc content, and the core wire (10) Spraying, so that the formed coating layer (20) is composed of particles (21a, 21b) after atomization of two or more coating substrates with different zinc content.
本發明所揭示金屬線之結構, 其中該披覆層(20)厚度,在未拉伸前的厚度為10μm~100μm。最佳為10μm~30μm。In the structure of the metal wire disclosed in the present invention, the thickness of the coating layer (20) before being stretched is 10 μm-100 μm. The best is 10μm~30μm.
依本發明所揭示金屬線之製造方法,本發明進行下列實施: [實施例一]: 取鋅含量37%直徑1.2mm之黃銅線為芯線(10),並於該芯線(10)的表面,以鋅含量95%的金屬為鍍層基材,對芯線(10)施予一次的噴鍍,噴鍍平均厚度為25μm,並在120℃拉伸至直徑0.8mm後,於250℃環境下拉伸至0.25mm,並於250℃進行2.5小時的退火,所得之金屬線(L),經檢測其抗拉強度為1015N/mm2 ,該成品符合線切割線的需求。 [實施例二]: 取鋅含量37%直徑1.2mm之黃銅線為芯線(10),並於該芯線(10)的表面,以鋅含量95%的金屬為鍍層基材,對芯線(10)施予兩次的噴鍍,噴鍍平均厚度為50μm,並在120℃拉伸至直徑0.8mm後,於250℃環境下拉伸至0.25mm,並於250℃進行1.5小時的退火,所得之金屬線,經檢測其抗拉強度為1010N/mm2 ,該成品符合線切割線的需求。 [實施例三]: 取鋅含量32%直徑1.2mm之黃銅線為芯線(10),並於該芯線(10)的表面,以鋅含量95%的金屬為鍍層基材,對芯線(10)施予一次的噴鍍,噴鍍平均厚度為10μm,並在120℃拉伸至直徑0.8mm後,於250℃環境下拉伸至0.15mm,並於250℃進行2.5小時的退火,所得之金屬線,經檢測其抗拉強度為950N/mm2 ,該成品符合線切割線的需求。 [實施例四]: 取鋅含量37%直徑1.2mm之黃銅線為芯線(10),並於該芯線(10)的表面,以鋅含量95%的金屬為鍍層基材,對芯線(10)施予一次的噴鍍,噴鍍平均厚度為30μm,並在120℃拉伸至直徑0.8mm後,於250℃環境下拉伸至0.35mm,並於250℃進行1.5小時的退火,所得之金屬線,經檢測其抗拉強度為1050N/mm2 ,該成品符合線切割線的需求。According to the manufacturing method of the metal wire disclosed in the present invention, the present invention is implemented as follows: [Example 1]: A brass wire with a zinc content of 37% and a diameter of 1.2 mm is taken as the core wire (10) and placed on the surface of the core wire (10) , Using metal with 95% zinc content as the plating base material, apply one spray plating to the core wire (10), the average thickness of the spray plating is 25μm, and after being stretched at 120°C to 0.8mm in diameter, it is pulled down at 250°C. Stretched to 0.25mm, and annealed at 250°C for 2.5 hours, the resulting metal wire (L) has a tensile strength of 1015N/mm 2 after testing. The finished product meets the requirements of wire cutting wire. [Example 2]: A brass wire with a zinc content of 37% and a diameter of 1.2 mm is taken as the core wire (10), and on the surface of the core wire (10), a metal with a zinc content of 95% is used as the plating base material. ) After spraying twice, the average thickness of the spraying is 50μm, and after being stretched to 0.8mm in diameter at 120°C, it is stretched to 0.25mm at 250°C and annealed at 250°C for 1.5 hours. After testing, the tensile strength of the metal wire is 1010N/mm 2 , and the finished product meets the requirements of wire cutting wire. [Example 3]: A brass wire with a zinc content of 32% and a diameter of 1.2mm is taken as the core wire (10), and on the surface of the core wire (10), a metal with a zinc content of 95% is used as the plating base material. ) Apply one spraying, the average thickness of the spraying is 10μm, and after stretching to 0.8mm in diameter at 120℃, stretching to 0.15mm at 250℃, and annealing at 250℃ for 2.5 hours, the result is The metal wire has a tensile strength of 950N/mm 2 after testing, and the finished product meets the requirements of wire cutting wires. [Example 4]: A brass wire with a zinc content of 37% and a diameter of 1.2 mm is taken as the core wire (10), and on the surface of the core wire (10), a metal with a zinc content of 95% is used as the plating substrate. ) Apply one spraying, the average thickness of spraying is 30μm, and after stretching to 0.8mm in diameter at 120℃, stretching to 0.35mm at 250℃, and annealing at 250℃ for 1.5 hours. The metal wire has a tensile strength of 1050N/mm 2 after testing, and the finished product meets the requirements of wire cutting wires.
本發明依所揭示金屬線之製造方法所取得的金屬線,在製程由於不是採用傳統電鍍,因此無電解液排及廢水排放的問題,大大降低對環境的污染,所得金屬線皆符合線切割機的使用需求,本發明採用噴鍍方式,可大大降低製造時間,而顯本發明之新穎性及經濟價值。The metal wire obtained according to the disclosed metal wire manufacturing method of the present invention does not use traditional electroplating in the manufacturing process, so there is no problem of electrolyte discharge and waste water discharge, which greatly reduces environmental pollution. The obtained metal wires are all compatible with wire cutting machines. According to the application requirements of the present invention, the spraying method is adopted in the present invention, which can greatly reduce the manufacturing time and show the novelty and economic value of the present invention.
本發明所揭示之方法及其結構,可於不違本發明之精神與範疇下予以修飾應用,本發明並不自限於上述的實施方式。The method and structure disclosed in the present invention can be modified and applied without departing from the spirit and scope of the present invention, and the present invention is not limited to the above-mentioned embodiments.
(10):芯線 (20):披覆層 (21):顆粒 (21a)(21b):顆粒 (C):裂痕或凹洞 (L’):母線 (L):金屬線 (S):噴鍍範圍 (10): core wire (20): Coating layer (21): Particles (21a)(21b): particles (C): Cracks or pits (L’): Bus (L): Metal wire (S): Spraying range
圖1:為本發明之製造流程方塊圖。 圖2:為本發明以滾輪導引母線通過噴鍍之示意圖。 圖3:為本發明以滾輪導引母線多次通過噴鍍之示意圖。 圖4:為本發明以單一鍍層基材進行噴鍍所製成金屬線的結構示意圖。 圖5:為本發明以單一鍍層基材進行噴鍍所製成金屬線的顯微鏡放大圖。 圖6:為本發明以兩種鍍層基材進行噴鍍所製成金屬線的結構示意圖。 圖7:為本發明以兩種鍍層基材進行噴鍍所製成金屬線的顯微鏡放大圖。Figure 1: Block diagram of the manufacturing process of the present invention. Figure 2 is a schematic diagram of the invention using rollers to guide the bus bar through spraying. Fig. 3 is a schematic diagram of the present invention using rollers to guide the bus bar through spraying multiple times. Fig. 4 is a schematic diagram of the structure of a metal wire made by spraying a single plating substrate according to the present invention. Figure 5: is a microscope enlarged view of a metal wire made by spraying a single-plated substrate according to the present invention. Fig. 6 is a schematic diagram of the structure of a metal wire made by spraying two kinds of coating substrates according to the present invention. Fig. 7 is a microscope enlarged view of a metal wire made by spraying two kinds of coating substrates according to the present invention.
Claims (10)
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TW108111963A TWI681827B (en) | 2019-04-03 | 2019-04-03 | Manufacturing method and structure of metal wire |
US16/401,859 US20200316679A1 (en) | 2019-04-03 | 2019-05-02 | Method for Making Metal Wire for Wire Electrical Discharge Machining and the Metal Wire Product Thereof |
JP2019001740U JP3222358U (en) | 2019-04-03 | 2019-05-16 | Metal wire structure |
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