KR102120320B1 - Manufacturing Method of Rectangular Wire Composed of Brass - Google Patents
Manufacturing Method of Rectangular Wire Composed of Brass Download PDFInfo
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- KR102120320B1 KR102120320B1 KR1020180169215A KR20180169215A KR102120320B1 KR 102120320 B1 KR102120320 B1 KR 102120320B1 KR 1020180169215 A KR1020180169215 A KR 1020180169215A KR 20180169215 A KR20180169215 A KR 20180169215A KR 102120320 B1 KR102120320 B1 KR 102120320B1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
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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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
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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
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/025—Casting heavy metals with high melting point, i.e. 1000 - 1600 degrees C, e.g. Co 1490 degrees C, Ni 1450 degrees C, Mn 1240 degrees C, Cu 1083 degrees C
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/061—Winding flat conductive wires or sheets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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Abstract
Description
이 발명은 황동각선의 제조 방법에 대한 것으로, 더욱 자세하게 설명하자면, 구리(Cu) 61~70.8 중량%, 아연(Zn) 29~38.8 중량%, 칼슘(Ca) 0.1~1.2 중량%, 철(Fe) 0.01~0.05 중량%, 주석(Sn) 0.1~1.5 중량%의 성분으로 이루어지며, 불소 피막이 형성되어있어, 제품의 균열 및 부식을 미연에 방지하면서도 황동 각선의 기계적 강도 및 경도를 향상시킬 수 있는 황동각선의 제조 방법에 대한 것이다.This invention relates to a method of manufacturing a brass wire, and to be described in more detail, copper (Cu) 61 to 70.8 wt%, zinc (Zn) 29 to 38.8 wt%, calcium (Ca) 0.1 to 1.2 wt%, iron (Fe) ) It is composed of 0.01~0.05% by weight and 0.1~1.5% by weight of tin (Sn), and a fluorine film is formed, which can prevent cracking and corrosion of the product in advance and improve the mechanical strength and hardness of each brass wire. It relates to a method of manufacturing a brass wire.
고전압, 고출력, 대용량 모터의 요구가 증대되면서 일반 권선(Magnet wire)인 환선으로는 효율 증대를 위한 점적율 향상에 문제가 존재하여, 환선보다 높은 점적율을 위해 각선(Flat&Rectangular Wire)의 필요성이 커지게 되면서, 기존 대용량 발전기용으로 쓰임새가 제한적이었던 각선이 고효율을 요구하는 자동차용 각종 모터를 포함하여 특히 전기/하이브리드 차량의 구동 모터에 적용되고, 고내열, 고전압이 요구되는 고속철도차량용 구동모터, 풍력발전기, 초대형 발전기 등에도 꾸전히 사용되며 그 적용범위가 점차 확대되어, 다양한 사이즈의 각선 개발이 필요해지고 있다.As the demand for high-voltage, high-power, and large-capacity motors increases, there is a problem in improving the drop ratio for increasing efficiency with a circular wire, which is a general wire, and the necessity of a flat and rectangular wire is high for a higher drop ratio than the circular wire. As it was lost, each line, which has been limited in use for large-capacity generators, is applied to driving motors of electric/hybrid vehicles, including various motors for automobiles that require high efficiency, and driving motors for high-speed rail vehicles that require high heat and high voltage It is steadily used in generators and large-sized generators, etc., and the scope of its application is gradually expanding, so that each line of various sizes needs to be developed.
한편 황동은 구리에 아연을 가하여 만든 금속으로, 아연의 양에 따라 칠삼, 67/33, 65/35 등의 종류가 있으며, 전구의 소켓이나, 총탄의약협(藥莢), 기타 스프링재로서 가정용 전기기구 등에 사용되고, 금색에 가까운 색상이기 때문에 쇠붙이 장식, 놋쇠장식, 단추, 휘장 등의 실내 장식에도 사용되며 α황동의 경우 전연성이 크기 때문에 두들기거나 늘려서 판/봉/선/관 등으로의 가공이 유용하여 산업재로서도 중요한 소재로 다양하게 사용되고 있는 실정이다.On the other hand, brass is a metal made by adding zinc to copper. Depending on the amount of zinc, brass is divided into seven types, 67/33, and 65/35. It is used as a socket for a light bulb, a bullet pharmacy, and other spring materials. Used for electrical appliances, etc., because it is a gold-like color, it is also used for interior decoration such as metal fittings, brass ornaments, buttons, and badges.In the case of α brass, it has high malleability, so it is beaten or stretched to process into plates, rods, wires, tubes, etc. Because it is useful, it is widely used as an important material as an industrial material.
이러한 황동에 더 바람직한 특성을 부여하기 위해 합금원소로서 납(Pb), 알루미늄(Al), 철(Fe), 니켈(Ni) 등을 소량 첨가하여 강도와 내식성 및 내해수성 등의 요구 특성을 만족시킬 수 있었으나 RoHS(Restriction of Hazardous Substanes, 유해물질 제한지침)가 제정되어 환경규제가 엄격해지고, 인체에 대한 유해성 원소들의 규제가 실시됨에 따라 납(Pb)을 첨가하여 절삭성을 향상시킨 쾌삭성 구리합금의 대체에 대한 연구가 요구되는 실정이다.In order to provide more desirable properties to such brass, a small amount of lead (Pb), aluminum (Al), iron (Fe), nickel (Ni), etc. is added as an alloy element to satisfy the required properties such as strength, corrosion resistance, and seawater resistance. Although it has been enacted, RoHS (Restriction of Hazardous Substanes) has been enacted, and environmental regulations have become strict, and as the regulation of harmful elements for the human body has been enforced, lead-free copper alloys with improved cutting performance by adding lead (Pb) A study on replacement is required.
이에 이 발명은 납(Pb)이 아닌 칼슘(Ca)을 첨가하여, 구리(Cu) 61~70.8 중량%, 아연(Zn) 29~38.8 중량%, 칼슘(Ca) 0.1~1.2 중량%, 철(Fe) 0.01~0.05 중량%, 주석(Sn) 0.1~1.5 중량%의 성분으로 이루어진 쾌삭성 구리합금을 제작하고, 불소 피막이 형성되어있어, 제품의 균열 및 부식을 미연에 방지하면서도 황동 제품의 기계적 강도 및 경도를 향상시킬 수 있는 황동각선의 제조 방법을 제공하는데 그 목적이 있다.Accordingly, in the present invention, calcium (Ca), not lead (Pb), is added, and 61 to 70.8% by weight of copper (Cu), 29 to 38.8% by weight of zinc (Zn), 0.1 to 1.2% by weight of calcium (Ca), and iron ( Fe) 0.01~0.05% by weight, tin (Sn) 0.1~1.5% by weight of a free-form copper alloy made of a component, and a fluorine film is formed, which prevents cracking and corrosion of the product in advance and mechanical strength of the brass product. And it is an object to provide a method of manufacturing a brass wire that can improve the hardness.
상기의 목적을 달성하기 위한 수단으로 이 발명의 방법의 구성은, 구리(Cu)를 용해하고 합금원소를 장입하여 황동빌렛(Billet)을 제조하는 단계, 상기 제조된 황동빌렛(Billet)을 이용하여 황동봉강을 제조하는 단계, 상기 제조된 황동봉강을 이용하여 황동각선을 제조하는 단계, 상기 제조된 황동각선에 표면처리를 하는 단계, 상기 표면처리 된 황동각선을 권취하는 단계를 포함하여 이루어지며, 상기한 황동은 구리(Cu) 61~70.8 중량%, 아연(Zn) 29~38.8 중량%, 칼슘(Ca) 0.1~1.2 중량%, 철(Fe) 0.01~0.05 중량%, 주석(Sn) 0.1~1.5 중량%의 성분으로 이루어지고, 상기한 단계로 완성된 황동각선의 경도는, 140~150Hv 인 것을 특징으로 이루어지는 것이 바람직하다.The configuration of the method of the present invention as a means for achieving the above object is a step of manufacturing a copper billet (Buille) by dissolving copper (Cu) and charging an alloy element, using the manufactured billet (Billet) It comprises the steps of manufacturing a brass bar, manufacturing a brass wire using the manufactured brass bar, surface treating the prepared brass wire, and winding the surface treated brass wire, The above brass is copper (Cu) 61 ~ 70.8 wt%, zinc (Zn) 29 ~ 38.8 wt%, calcium (Ca) 0.1 ~ 1.2 wt%, iron (Fe) 0.01 ~ 0.05 wt%, tin (Sn) 0.1 ~ It is made of a component of 1.5% by weight, and the hardness of the brass wire completed in the above-described step, it is preferable that it is made of a feature characterized in that 140 ~ 150Hv.
또한 이 발명의 방법의 구성으로, 상기한 황동빌렛(Billet)을 제조하는 단계는, 구리 잉곳(Ingot)을 1130~1270℃의 온도로 용해하는 단계, 상기의 용해된 구리 용탕의 드로스(Dross)를 제거하는 단계, 상기의 드로스가 제거된 구리 용탕에 합금 원소를 장입하는 단계, 상기의 합금원소가 장입된 구리 용탕을 금형에 주입하여 금형과 함께 냉각시키는 단계, 상기의 냉각된 황동빌렛(Billet)을 금형에서 분리하여 스크랩을 제거하는 단계를 포함하여 이루어지며, 상기한 합금원소가 장입된 구리 용탕을 금형에 주입하는 단계에서 용탕의 주입 온도는 1080~1170℃의 온도로 이루어지는 것이 바람직하다.In addition, in the configuration of the method of the present invention, the step of manufacturing the above-mentioned brass billet (Billet), the step of melting a copper ingot (Ingot) at a temperature of 1130 ~ 1270 ℃, the dross of the molten copper molten (Dross ) Removing, charging the alloy element into the copper molten metal from which the dross is removed, injecting the copper molten metal from which the alloy element is charged into the mold, and cooling the mold together, and cooling the brass billet ( Billet) is made from the step of removing the scrap by removing from the mold, the injection temperature of the molten metal in the step of injecting the above-described alloy element into the mold molten copper is preferably a temperature of 1080 ~ 1170 ℃ .
또한 이 발명의 방법의 구성으로, 상기한 황동빌렛(Billet)을 이용하여 황동봉강을 제조하는 단계는, 상기한 제 2항에서 완성된 황동빌렛(Billet)을 가열로에 넣어 650~750℃로 가열하는 단계, 상기의 가열된 황동빌렛을 조압연기에 통과시켜 빌렛을 봉상으로 다듬는 단계, 상기의 황동 봉강을 사상압연기에 통과시켜 목표수치의 황동 봉강으로 압연하는 단계를 포함하여 이루어지는 것이 바람직하다.In addition, as a configuration of the method of the present invention, the step of manufacturing a brass bar using the above-mentioned brass billet (Billet), put the completed billet (Billet) in claim 2 into a heating furnace to 650 ~ 750 ℃ It is preferable to include the step of heating, passing the heated brass billet through a rough mill to trim the billet into a rod, and rolling the brass rod through the finishing mill to roll into a brass rod having a target value.
또한 이 발명의 방법의 구성으로, 상기한 황동봉강을 이용하여 황동각선을 제조하는 단계는, 상기한 제 3항에서 완성된 황동봉강을 150~200℃의 가열로에 넣어 가열하는 단계, 상기의 가열된 황동봉강을 다중인발하는 단계, 상기의 다중 인발된 황동봉강을 압연기로 이동하여 최종 각선 규격보다 0.15~0.2㎜가량 큰 너비와 높이의 각선제로 압연하는 단계, 상기의 압연으로 완성된 황동각선을 430~470℃의 전기소둔로에서 4~5시간동안 소둔(Annealing)하는 단계, 상기의 소둔된 황동각선에 표면처리하는 단계, 상기의 표면처리가 된 황동각선을 각선기에 넣어 권취하는 단계를 포함하여 이루어지며, 상기한 다중 인발 단계에서 1회 인발 후의 지름은 인발 전 지름의 82%~95% 인 것을 특징으로 이루어지는 것이 바람직하다.In addition, as a configuration of the method of the present invention, the step of manufacturing a brass wire using the above-mentioned brass bar, the step of heating the brass bar completed in claim 3 above into a heating furnace of 150 ~ 200 ℃, the above Step of multi-pulling the heated brass bar, moving the multi-drawn brass bar to a rolling mill and rolling it with a square wire of 0.15 to 0.2 mm wider and higher than the final square wire specification, and finished with the above-mentioned rolling The step of annealing for 4-5 hours in an electric annealing furnace at 430~470℃, surface treating the annealed brass wire, and putting the above-treated brass wire into each wire and winding it. It is made to include, it is preferable that the diameter after the first draw in the above multiple drawing step is characterized in that it is 82% to 95% of the diameter before the draw.
또한 이 발명의 방법의 구성으로, 상기한 황동각선에 행하여지는 표면처리의 단계의 코팅액은, 불소수지 67~76 중량%, p,p'-옥스비스벤젠술포닐하이드라지드 10~12 중량%, 메틸메타아크릴레이트 7~10 중량%, 에폭사이디드소이빈오일 1~3 중량%, 폴리메타크릴레이트 3~5 중량%, 프로피오네이트 0.1~2 중량%, 인산염 0.5~3 중량%, 디티오카르밤산아연 2~3중량%, 벤조트리아졸 0.01~3 중량%를 포함하여 구성되며, 상기한 불소수지는 폴리테트라플루오르에틸렌(PTFE), 클로로트리플루오르에틸렌(CTFE), 불화비닐리덴수지(PVDF)를 모두 포함하여 이루어지면 바람직하다.In addition, in the composition of the method of the present invention, the coating solution of the surface treatment step performed on the brass wire is 67 to 76% by weight of fluorine resin and 10 to 12% by weight of p,p'-oxbisbenzenesulfonyl hydrazide. , Methyl methacrylate 7~10 wt%, Epoxysided Soybean Oil 1~3 wt%, Polymethacrylate 3~5 wt%, Propionate 0.1~2 wt%, Phosphate 0.5~3 wt%, Dty It comprises 2 to 3% by weight of zinc carbamate, 0.01 to 3% by weight of benzotriazole, and the above-described fluororesin is polytetrafluoroethylene (PTFE), chlorotrifluoroethylene (CTFE), vinylidene fluoride resin ( PVDF) is preferably included.
구리(Cu) 61~70.8 중량%, 아연(Zn) 29~38.8 중량%, 칼슘(Ca) 0.1~1.2 중량%, 철(Fe) 0.01~0.05 중량%, 주석(Sn) 0.1~1.5 중량%의 성분으로 이루어지며, 불소 피막이 형성되어있어, 제품의 균열 및 부식을 미연에 방지하면서도 황동각선의 기계적 강도 및 경도를 향상시킬 수 있는 효과가 있다.Copper (Cu) 61 to 70.8 wt%, zinc (Zn) 29 to 38.8 wt%, calcium (Ca) 0.1 to 1.2 wt%, iron (Fe) 0.01 to 0.05 wt%, tin (Sn) 0.1 to 1.5 wt% It is made of ingredients and has a fluorine coating, which prevents cracking and corrosion of the product in advance, while improving the mechanical strength and hardness of the brass wire.
도 1은 이 발명 실시예에 따른 황동각선의 제조방법의 전체 흐름도이다.
도 2는 이 발명 실시예에 따른 황동빌렛의 제조방법 흐름도이다.
도 3은 이 발명 실시예에 따른 황동봉강의 제조방법 흐름도이다.
도 4는 이 발명 실시예에 따른 황동각선의 제조방법 흐름도이다.1 is an overall flow chart of a method for manufacturing a brass wire according to an embodiment of the present invention.
2 is a flowchart of a method for manufacturing a brass billet according to an embodiment of the present invention.
3 is a flowchart of a method for manufacturing a brass bar according to an embodiment of the present invention.
4 is a flowchart of a method for manufacturing a brass wire according to an embodiment of the present invention.
이하, 이 발명에 속하는 기술 분야에서 통상의 지식을 가진 자가 이 발명을 용이하게 실시할 수 있을 정도로 상세히 설명하기 위하여, 이 발명의 바람직한 실시예를 첨부된 도면을 참조로 하여 상세히 설명하기로 한다. 이 발명의 목적, 작용, 효과에 대한 이점이 바람직한 실시예의 설명에 의해 보다 명확해질 것이다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to describe in detail that a person skilled in the art to which the present invention pertains can easily implement the present invention. Advantages of the objects, actions, and effects of this invention will become more apparent by the description of preferred embodiments.
참고로, 여기에서 개시되는 실시예는 실시 가능한 예 중에서 당업자의 이해를 돕기 위하여 가장 바람직한 실시예를 선정하여 제시한 것일 뿐, 이 발명의 기술적 사상이 반드시 제시된 실시예에 의해서 한정되거나 제한되는 것이 아니고, 이 발명의 기술적 사상을 벗어나지 않는 범위 내에서 균등물 내지 대체물들을 포함하는 다양한 변화, 부가 및 변경이 가능하다.For reference, the embodiments disclosed herein are only selected and presented as the most preferred embodiments to assist the skilled person in understanding among the possible examples, and the technical spirit of the present invention is not necessarily limited or limited by the presented embodiments , Various changes, additions, and modifications including equivalents or substitutes are possible without departing from the technical spirit of the present invention.
또한, 본원의 명세서 및 청구범위에 사용된 용어나 단어의 표현은, 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위하여 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 정의된 것으로서, 통상적이거나 사전적인 의미로만 한정해서 해석되어서는 아니되며, 이 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.In addition, the expressions of terms or words used in the specification and claims of the present application are defined on the basis of the principle that the inventor can appropriately define the concept of terms in order to best describe his or her invention. However, it should not be interpreted as being limited to only ordinary or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.
도 1은 이 발명 실시예에 따른 황동각선의 제조방법의 전체 흐름도이다.1 is an overall flow chart of a method for manufacturing a brass wire according to an embodiment of the present invention.
도 1에 도시된 것과 같이 황동각선의 제조방법의 전체 흐름도는, 구리(Cu)를 용해하고 합금원소를 장입하여 황동빌렛(Billet)을 제조하는 단계(S100), 상기 제조된 황동빌렛(Billet)을 이용하여 황동봉강을 제조하는 단계(S200), 상기 제조된 황동봉강을 이용하여 황동각선을 제조하는 단계(S300), 상기 제조된 황동각선에 표면처리를 하는 단계(S400), 상기 표면처리 된 황동각선을 권취하는 단계(S500)을 포함하여 이루어진다.As shown in Figure 1, the overall flow chart of the method of manufacturing a brass wire is a step (S100) of dissolving copper (Cu) and charging an alloy element to manufacture a brass billet (S100), the manufactured brass billet (Billet) Manufacturing a brass bar using (S200), manufacturing a brass wire using the manufactured brass bar (S300), surface-treating the manufactured brass wire (S400), and the surface treatment It comprises a step (S500) of winding the brass wire.
이 때, 상기한 황동은 구리(Cu) 61~70.8 중량%, 아연(Zn) 29~38.8 중량%, 칼슘(Ca) 0.1~1.2 중량%, 철(Fe) 0.01~0.05 중량%, 주석(Sn) 0.1~1.5 중량%의 성분으로 이루어지는 것이 바람직하며, 황동각선의 경도는 140~150Hv인 것을 특징으로 한다.At this time, the above-mentioned brass is copper (Cu) 61 ~ 70.8 wt%, zinc (Zn) 29 ~ 38.8 wt%, calcium (Ca) 0.1 ~ 1.2 wt%, iron (Fe) 0.01 ~ 0.05 wt%, tin (Sn ) It is preferably made of 0.1 to 1.5% by weight of components, and the hardness of each brass wire is characterized by being 140 to 150 Hv.
이 때 황동 내에 칼슘(Ca)은 0.1~1.2 중량%로 함유되는 것이 바람직하며, 칼슘(Ca)이 0.1 중량% 미만 첨가될 경우에는 Cu-Ca 화합물의 형성이 부족하여 양백의 쾌삭성이 개선되지 않으며, 1.2 중량%를 초과하여 첨가될 경우 용해 시 산화물의 증가로 주조성이 떨어져 바람직하지 않게 되며, Ca2Cu와 같은 저융점 화합물의 생성으로 열간가공시 크랙을 유발할 수 있어 바람직하지 않다.At this time, it is preferable that the calcium (Ca) is contained in the brass in an amount of 0.1 to 1.2% by weight, and when the calcium (Ca) is added less than 0.1% by weight, the formation of Cu-Ca compound is insufficient, so that the free cutability of nickel silver is not improved. When it is added in excess of 1.2% by weight, the castability becomes unfavorable due to an increase in oxide upon dissolution, and the formation of a low melting point compound such as Ca 2 Cu may cause cracking during hot working, which is not preferable.
또한 황동 내에 철(Fe)은 0.01~0.05 중량%로 함유되는 것이 바람직하며, 0.01 중량% 미만일 경우에는 조직 미세화 효과가 적어 경도가 개선되지 않으며, 0.05 중량%를 초과할 경우 조직미세화의 한계로 오히려 취성이 증가하며, 부식 특성을 저하시킬 수 있어 바람직하지 않다.In addition, iron (Fe) is preferably contained in brass in an amount of 0.01 to 0.05% by weight, and if it is less than 0.01% by weight, it does not improve the hardness due to less tissue refinement effect. Brittleness is increased, and corrosion properties can be reduced, which is not preferable.
또한 황동 내에 주석(Sn)은 0.1~1.5 중량%로 함유되는 것이 바람직하며, 0.1 중량% 미만일 경우 열간가공성 향상에 충분한 효과를 미치지 못하여 경도에 영향을 끼치지 못하며, 1.5 중량%를 초과할 경우 경도 상승의 효과로 인한 취성이 증가되어 바람직하지 않다.In addition, it is preferable that tin (Sn) is contained in brass in an amount of 0.1 to 1.5% by weight, and if it is less than 0.1% by weight, it does not have a sufficient effect on improving hot workability, and thus does not affect hardness, and when it exceeds 1.5% by weight, hardness The brittleness due to the synergistic effect is increased, which is undesirable.
도 2는 이 발명 실시예에 따른 황동빌렛의 제조방법 흐름도이다.2 is a flowchart of a method for manufacturing a brass billet according to an embodiment of the present invention.
도 2에 도시된 것과 같이 황동빌렛은, 구리 잉곳(Ingot)을 1130~1270℃의 온도로 용해하는 단계(S110), 상기의 용해된 구리 용탕의 드로스(Dross)를 제거하는 단계(S120), 상기의 드로스가 제거된 구리 용탕에 합금 원소를 장입하는 단계(S130), 상기의 합금원소가 장입된 구리 용탕을 금형에 주입하여 금형과 함께 냉각시키는 단계(S140), 상기의 냉각된 황동빌렛(Billet)을 금형에서 분리하여 스크랩을 제거하는 단계(S150)를 포함하여 이루어진다.As shown in Figure 2, the brass billet, the step of dissolving the copper ingot (Ingot) to a temperature of 1130 ~ 1270 ℃ (S110), removing the dross (Dross) of the molten copper melt (S120) , The step of charging the alloy element to the copper molten metal dross is removed (S130), by injecting the copper molten metal is loaded with the alloy element in the mold to cool together with the mold (S140), the cooled brass billet (Billet) to remove the scrap by removing from the mold (S150).
이 때, 구리 잉곳을 용해하는 단계(S110)의 온도는 1130~1270℃가 바람직하며, 상기한 온도가 1130℃ 미만일 경우 구리 잉곳을 포함한 합금원소가 충분히 용해되지 않아 바람직하지 않으며, 1270℃를 초과할 경우 합금원소 장입 후 교반 시 수소가 과잉충진 되어 올바른 황동빌렛을 획득할 수 없게 되어 바람직하지 않다.At this time, the temperature of the step of dissolving the copper ingot (S110) is preferably 1130 to 1270°C, and when the above-mentioned temperature is less than 1130°C, the alloying element including the copper ingot is not sufficiently dissolved, which is undesirable, and exceeds 1270°C. If it does, it is not preferable because hydrogen is excessively charged when the alloy element is charged and stirred, so that the correct brass billet cannot be obtained.
또한 상기한 합금원소가 장입된 구리 용탕을 금형에 주입하는 단계(S140)에서 용탕의 주입 온도는 1080~1170℃의 온도로 이루어지는 것을 특징으로 하며, 용탕 주입 온도가 1080℃ 미만일 경우 용탕이 금형에 충분히 주입되기 전에 용탕의 응고가 시작될 수 있어 바람직하지 않으며, 1170℃를 초과할 경우 용탕의 유동으로 유입된 산소가 완성된 황동빌렛에 치명적인 결함을 야기할 수 있어 바람직하지 않다.In addition, in the step (S140) of injecting the above-described alloy element-loaded copper molten metal into the mold, the injection temperature of the molten metal is set to a temperature of 1080 to 1170°C, and when the molten metal injection temperature is less than 1080°C, the molten metal is introduced into the mold. It is not preferable that the solidification of the molten metal may be started before it is sufficiently injected, and when it exceeds 1170°C, oxygen introduced into the flow of the molten metal may cause fatal defects in the finished brass billet.
도 3은 이 발명 실시예에 따른 황동봉강의 제조방법 흐름도이다.3 is a flowchart of a method for manufacturing a brass bar according to an embodiment of the present invention.
도 3에 도시된 것과 같이 황동봉강은, 황동빌렛(Billet)을 가열로에 넣어 650~750℃로 가열하는 단계(S210), 상기의 가열된 황동빌렛을 조압연기에 통과시켜 빌렛을 봉상으로 다듬는 단계(S220), 상기의 황동 봉강을 사상압연기에 통과시켜 목표수치의 황동 봉강으로 압연하는 단계(S230)을 포함하여 이루어진다.As shown in Figure 3, the brass bar, put a brass billet (Billet) into a heating furnace to heat it to 650 to 750°C (S210), and pass the heated brass billet through a roughing mill to trim the billet into rods. Step (S220), passing through the brass bar of the finishing mill comprises a step (S230) of rolling into a brass bar of a target value.
이 때 황동빌렛을 가열로에서 가열하는 단계(S210)에서 황동빌렛의 가열온도는 650~750℃가 바람직하며, 650℃에 도달하지 못할 경우 황동빌렛의 풀림이 충분하지 못하여 압연기 내에서 파손이 야기될 수 있어 바람직하지 않으며, 750℃를 초과할 경우 황동빌렛의 결정립이 조대화되어 완성된 양백각선이 충분한 경도를 가지지 못하므로 바람직하지 않다.At this time, the heating temperature of the brass billet in the step (S210) of heating the brass billet is preferably 650~750℃, and if it does not reach 650℃, the loosening of the brass billet is insufficient, causing damage in the rolling mill. It is not preferable because it can be, and when it exceeds 750°C, the crystal grains of the brass billet are coarsened, so the finished bi-angled line does not have sufficient hardness, which is not preferable.
도 4는 이 발명 실시예에 따른 황동각선의 제조방법 흐름도이다.4 is a flowchart of a method for manufacturing a brass wire according to an embodiment of the present invention.
도 4에 도시된 것과 같이 황동각선은, 황동봉강을 150~200℃의 가열로에 넣어 가열하는 단계(S310), 상기의 가열된 황동봉강을 다중인발하는 단계(S320), 상기의 다중 인발된 황동봉강을 압연기로 이동하여 최종 각선 규격보다 0.15~0.2㎜가량 큰 너비와 높이의 각선제로 압연하는 단계(S330), 상기의 압연으로 완성된 황동각선을 430~470℃의 전기소둔로에서 4~5시간동안 소둔(Annealing)하는 단계(S340), 상기의 소둔된 황동각선에 표면처리하는 단계(S350), 상기의 표면처리가 된 황동각선을 각선기에 넣어 권취하는 단계(S360)를 포함하여 이루어진다.As shown in Figure 4, each of the brass wires is heated by putting the brass bars in a heating furnace of 150 to 200°C (S310), multiple drawing of the heated brass bars (S320), and multiple drawing Moving the brass bar to a rolling mill and rolling with a square wire agent of width and height about 0.15 to 0.2 mm larger than the final square wire specification (S330), and the brass wire completed by the above rolling is 4 to 4 in an electric annealing furnace at 430 to 470°C. Annealing for 5 hours (S340), the surface treatment of the annealed brass wire (S350), and the surface treatment of the brass wire is put in a square wire and is wound (S360). .
이 때 다중 인발 단계(S320)에서 1회 인발 후의 지름은 인발 전 지름의 82~95%인 것을 특징으로 하며, 82% 미만의 지름으로 인발될 경우 재료 내의 파손을 포함한 여러 결함을 유발할 수 있어 바람직하지 않으며 95%를 초과한 지름으로 인발될 경우 황동의 탄성회복으로 인하여 원하는 지름에 도달하지 않을 수 있어 바람직하지 않다.At this time, in the multiple drawing step (S320), the diameter after one draw is characterized in that it is 82 to 95% of the diameter before drawing, and when drawn with a diameter of less than 82%, it may cause various defects including damage in the material, and is preferable. If it is not drawn and is drawn to a diameter exceeding 95%, it is not preferable because the desired diameter may not be reached due to the elastic recovery of brass.
또한 전기소둔로에서 소둔하는 단계(S340)에서 전기소둔로의 온도는 430~470℃가 바람직하며, 430℃에 도달하지 못할 경우 압연 시 야기된 황동각선 내의 전위가 충분히 해소되지 못하여 최종적으로 황동각선의 취성을 유발시킬 수 있어 바람직하지 않으며, 470℃를 초과할 경우 결정립 사이즈의 조대화로 인하여 황동각선이 충분한 경도를 가지지 못하므로 바람직하지 않다.In addition, in the step of annealing in the electric annealing furnace (S340), the temperature of the electric annealing furnace is preferably 430 to 470°C, and if it does not reach 430°C, the potential in the brass wire caused by rolling cannot be sufficiently resolved, and finally the brass wire It is not preferable because it may cause brittleness, and if it exceeds 470°C, it is not preferable because the brass wire does not have sufficient hardness due to the coarsening of the grain size.
또한 상기한 표면처리 단계(S350)에서 사용되는 코팅액은 불소수지 67~76 중량%, p,p'-옥스비스벤젠술포닐하이드라지드 10~12 중량%, 메틸메타아크릴레이트 7~10 중량%, 에폭사이디드소이빈오일 1~3 중량%, 폴리메타크릴레이트 3~5 중량%, 프로피오네이트 0.1~2 중량%, 인산염 0.5~3 중량%, 디티오카르밤산아연 2~3중량%, 벤조트리아졸 0.01~3 중량%를 포함하여 이루어지는 것이 바람직하다.In addition, the coating solution used in the surface treatment step (S350) is 67 to 76% by weight of fluorine resin, 10 to 12% by weight of p,p'-oxbisbenzenesulfonyl hydrazide, 7 to 10% by weight of methyl methacrylate , 1 to 3% by weight of epoxidide soybean oil, 3 to 5% by weight of polymethacrylate, 0.1 to 2% by weight of propionate, 0.5 to 3% by weight of phosphate, 2 to 3% by weight of zinc dithiocarbamate, It is preferable to include 0.01 to 3% by weight of benzotriazole.
이 때 사용되는 불소수지는 폴리테트라플루오르에틸렌(PTFE), 클로로트리플루오르에틸렌(CTFE), 불화비닐리덴수지(PVDF)를 모두 포함하는 것을 특징으로 이루어지면 바람직하며, 코팅액 내 불소수지의 전체 함유량은 67~76 중량%인 것이 바람직하며, 불소수지의 함유량이 67 중량% 미만일 경우 충분한 표면 경화를 발생시키지 못하므로 바람직하지 않으며, 76 중량%를 초과할 경우 표면 경화가 과다하여 황동각선 표면의 결함을 야기할 수 있어 바람직하지 않다.The fluorine resin used at this time is preferably made of polytetrafluoroethylene (PTFE), chlorotrifluoroethylene (CTFE), and vinylidene fluoride resin (PVDF), and the total content of the fluorine resin in the coating solution is It is preferable that it is 67 to 76% by weight, and if the content of the fluorine resin is less than 67% by weight, it is not preferable because sufficient surface hardening is not generated, and when it exceeds 76% by weight, surface hardening is excessive and defects on the surface of each brass wire are prevented. It is not desirable because it can cause.
또한 이 때 사용되는 폴리메타크릴레이트는 3~5 중량% 인 것이 바람직하며, 폴리메타크릴레이트의 함량이 3 중량% 미만일 경우에는 코팅액의 점도가 묽어 완성된 황동각선의 표면에 충분한 박막을 생성하지 못하며, 5 중량%를 초과할 경우에는 담금액의 점도가 짙어지기 때문에 주조품 표면에 고른 박막의 생성이 힘들다는 문제점이 존재하여 바람직하지 않다.In addition, it is preferable that the polymethacrylate used at this time is 3 to 5% by weight, and when the content of the polymethacrylate is less than 3% by weight, the viscosity of the coating solution is dilute, so that a sufficient thin film is not produced on the surface of the finished brass wire. If it is more than 5% by weight, the viscosity of the immersion solution becomes thicker, so there is a problem in that it is difficult to produce a uniform thin film on the surface of the cast, which is not preferable.
Claims (5)
상기 제조된 황동빌렛(Billet)을 이용하여 황동봉강을 제조하는 단계;
상기 제조된 황동봉강을 이용하여 황동각선을 제조하는 단계;
상기 제조된 황동각선에 표면처리를 하는 단계;
상기 표면처리 된 황동각선을 권취하는 단계;를 포함하여 이루어지며,
상기한 황동빌렛은 구리(Cu) 61~70.8 중량%, 아연(Zn) 29~38.8 중량%, 칼슘(Ca) 0.1~1.2 중량%, 철(Fe) 0.01~0.05 중량%, 주석(Sn) 0.1~1.5 중량%의 성분으로 이루어지며,
상기한 황동각선의 경도는 140~150Hv 이며,
상기한 황동빌렛(Billet)을 제조하는 단계는,
구리 잉곳(Ingot)을 1130~1270℃의 온도로 용해하는 단계;
상기의 용해된 구리 용탕의 드로스(Dross)를 제거하는 단계;
상기의 드로스가 제거된 구리 용탕에 합금 원소를 장입하는 단계;
상기의 합금원소가 장입된 구리 용탕을 금형에 주입하여 금형과 함께 냉각시키는 단계;
상기의 냉각된 황동빌렛(Billet)을 금형에서 분리하여 스크랩을 제거하는 단계;를 포함하여 이루어지며,
상기한 합금원소가 장입된 구리 용탕을 금형에 주입하는 단계에서 용탕의 주입 온도는 1080~1170℃의 온도로 이루어지는 황동각선의 제조 방법.Dissolving copper (Cu) and charging an alloy element to produce a brass billet (Billet);
Manufacturing a brass bar using the manufactured brass billet;
Manufacturing a brass wire using the manufactured brass bar;
Surface-treating the manufactured brass wire;
It is made, including; winding the surface-treated brass wire;
The above-mentioned brass billet is copper (Cu) 61 to 70.8 wt%, zinc (Zn) 29 to 38.8 wt%, calcium (Ca) 0.1 to 1.2 wt%, iron (Fe) 0.01 to 0.05 wt%, tin (Sn) 0.1 It consists of ~1.5% by weight of ingredients,
The hardness of the brass wire is 140 ~ 150Hv,
The step of manufacturing the above-mentioned brass billet (Billet),
Dissolving the copper ingot (Ingot) at a temperature of 1130 ~ 1270 ℃;
Removing the dross of the molten copper melt;
Charging an alloy element into the copper molten metal from which the dross is removed;
Injecting the molten copper loaded with the alloying element into a mold and cooling the mold together;
And removing the scrap by separating the cooled brass billet from the mold.
Method for manufacturing a brass wire made of a temperature of 1080 ~ 1170 ℃ the injection temperature of the molten metal in the step of injecting the above-described alloy element charged copper molten metal into the mold.
상기한 황동빌렛(Billet)을 이용하여 황동봉강을 제조하는 단계는,
상기한 황동빌렛(Billet)을 가열로에 넣어 650~750℃로 가열하는 단계;
상기의 가열된 황동빌렛을 조압연기에 통과시켜 빌렛을 봉상으로 다듬는 단계;
상기의 황동 봉강을 사상압연기에 통과시켜 목표수치의 황동 봉강으로 압연하는 단계;를 포함하여 이루어지는 황동각선의 제조 방법.According to claim 1,
The step of manufacturing a brass bar using the above-mentioned brass billet (Billet),
Putting the above-mentioned brass billet (Billet) into a heating furnace to heat to 650 ~ 750 ℃;
Passing the heated brass billet through a rough mill to trim the billet into rods;
Method of manufacturing a brass wire comprising;; passing through the brass rod of the finishing mill to roll into a brass rod of the target value.
상기한 황동봉강을 이용하여 황동각선을 제조하는 단계는,
상기한 황동봉강을 150~200℃의 가열로에 넣어 가열하는 단계;
상기의 가열된 황동봉강을 다중인발하는 단계;
상기의 다중 인발된 황동봉강을 압연기로 이동하여 최종 각선 규격보다 0.15~0.2㎜가량 큰 너비와 높이의 각선제로 압연하는 단계;
상기의 압연으로 완성된 황동각선을 430~470℃의 전기소둔로에서 4~5시간동안 소둔(Annealing)하는 단계;
상기의 소둔된 황동각선에 표면처리하는 단계;
상기의 표면처리가 된 황동각선을 각선기에 넣어 권취하는 단계;를 포함하여 이루어지며,
상기한 다중 인발 단계에서 1회 인발 후의 지름은 인발 전 지름의 82%~95% 인 것을 특징으로 하는 황동각선의 제조 방법.According to claim 3,
The step of manufacturing the brass wire using the above-mentioned brass bar,
Heating the above-mentioned brass bar steel in a heating furnace of 150 to 200°C;
Multidrawing the heated brass bar;
Moving the multi-drawn brass bar to a rolling mill and rolling with a square wire agent having a width and height of about 0.15 to 0.2 mm greater than the final square wire specification;
Annealing the brass wire completed by the rolling in an electric annealing furnace at 430 to 470°C for 4 to 5 hours;
Surface-treating the annealed brass wire;
It is made, including; the step of winding the brass wire with the surface treatment of each of the box;
In the above multiple drawing step, the diameter after the one-time drawing is 82% to 95% of the diameter before drawing.
상기한 황동각선에 행하여지는 표면처리의 단계의 코팅액은,
불소수지 67~76 중량%, p,p'-옥스비스벤젠술포닐하이드라지드 10~12 중량%, 메틸메타아크릴레이트 7~10 중량%, 에폭사이디드소이빈오일 1~3 중량%, 폴리메타크릴레이트 3~5 중량%, 프로피오네이트 0.1~2 중량%, 인산염 0.5~3 중량%, 디티오카르밤산아연 2~3중량%, 벤조트리아졸 0.01~3 중량%를 포함하여 구성되며,
상기한 불소수지는 폴리테트라플루오르에틸렌(PTFE), 클로로트리플루오르에틸렌(CTFE), 불화비닐리덴수지(PVDF)를 모두 포함하는 것을 특징으로 하는 황동각선의 제조 방법.According to claim 1,
The coating solution in the step of surface treatment performed on the brass wires described above is
Fluorine resin 67~76% by weight, p,p'-oxbisbenzenesulfonylhydrazide 10~12% by weight, methyl methacrylate 7~10% by weight, epoxidide soybean oil 1~3% by weight, poly Methacrylate 3~5 wt%, Propionate 0.1~2 wt%, Phosphate 0.5~3 wt%, Dithiocarbamate Zinc 2~3 wt%, Benzotriazole 0.01~3 wt%
The fluorine resin is polytetrafluoroethylene (PTFE), chlorotrifluoroethylene (CTFE), a method for producing a brass wire, characterized in that it comprises all of vinylidene fluoride resin (PVDF).
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