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CN-121988632-A - Preparation method of diamond wire composite bus

CN121988632ACN 121988632 ACN121988632 ACN 121988632ACN-121988632-A

Abstract

The application provides a preparation method of a diamond wire composite bus, which comprises the following steps of S1, drawing a wire rod to a diameter of 3.5-4 mm, quenching, S2, wrapping a nickel-based alloy with a thickness of 0.5-1.5 mm outside the wire rod subjected to the step S1, and then rolling, S3, drawing the wire rod wrapped with the nickel-based alloy to fuse the wire rod and the nickel-based alloy to obtain a semi-finished product of the composite bus, and S4, carrying out multi-pass wet drawing to obtain the diamond wire composite bus with the nickel-based alloy with a surface layer of 2-3 mu m. According to the preparation method of the diamond wire composite bus, the nickel-based alloy is wrapped outside the wire rod, and the steps of rolling, drawing and the like are carried out to obtain the diamond wire composite bus, so that brass plating is not needed, brass stripping and nickel plating are not needed at the production end of the diamond wire, electroplating raw and auxiliary materials and related electric loss are omitted, and the production process is more environment-friendly and healthy.

Inventors

  • WU XIAOLING
  • Cheng Guanbo
  • YIN MIN

Assignees

  • 张家港市苏闽金属制品有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (10)

  1. 1. The preparation method of the diamond wire composite bus is characterized by comprising the following steps of: S1, drawing a wire rod to a diameter of 3.5-4 mm, and quenching; S2, wrapping the nickel-based alloy with the thickness of 0.5-1.5 mm outside the wire rod subjected to the step S1, and then rolling; s3, drawing the wire rod wrapped with the nickel-based alloy, and fusing the wire rod and the nickel-based alloy to obtain a semi-finished product of the composite bus; And S4, carrying out multi-pass wet drawing to finally obtain the diamond wire composite bus with the nickel-based alloy with the thickness of 2-3 mu m on the surface layer.
  2. 2. The method for manufacturing the diamond wire composite bus according to claim 1, wherein in the step S1, the wire rod is fed into a heating furnace after being drawn and heated to 900-990 ℃ for austenitizing, then cooled to 80-90 ℃, and the advancing speed of the wire rod in the heating furnace is 20-30 m/min.
  3. 3. The method for manufacturing the diamond wire composite busbar according to claim 1, wherein the diameter of the semi-finished product of the composite busbar is 0.3-0.65 mm.
  4. 4. The method for manufacturing a composite busbar of diamond wire according to claim 3, wherein the diameter of the composite busbar of diamond wire is 27-42 μm.
  5. 5. The method for manufacturing the diamond wire composite busbar according to claim 1, wherein in the step S3, after the wire rod and the nickel-based alloy are fused to form a semi-finished product of the composite busbar, quenching is performed again, wherein the semi-finished product of the composite busbar is sent into a heating furnace to be heated to 850-960 ℃, then is rapidly cooled to 85-92 ℃, and the advancing speed of the semi-finished product of the composite busbar in the heating furnace is 70-90 m/min.
  6. 6. The method for manufacturing the diamond wire composite busbar according to claim 1, wherein in the step S4, the semi-finished product of the composite busbar is wet-drawn by a wire drawing machine, and the drawing speed is 8-14 m/S.
  7. 7. The method for manufacturing the diamond wire composite busbar according to claim 6, wherein the semi-finished product of the composite busbar is drawn in a soaking solution during wet drawing, wherein the temperature of the soaking solution is 38-42 ℃, and the concentration of the soaking solution is 8-12%.
  8. 8. The method for manufacturing a composite busbar of diamond wire according to claim 1, wherein in step S2, the wire rod wrapped with the nickel-based alloy is rolled by upper and lower semicircular rollers, and the semicircular rollers press the wire rod and the nickel-based alloy to press them together.
  9. 9. The method for preparing the diamond wire composite bus according to any one of claims 1 to 8, wherein the chemical components of the wire rod comprise, by mass, 0.9% -1.15% of C, 0.25% -0.45% of Mn, 0.15% -0.35% of Si, 0.01% -0.04% of Cr, and the balance of Fe and unavoidable impurities.
  10. 10. The preparation method of the diamond wire composite bus bar according to claim 9, wherein the nickel-based alloy comprises, by mass, 65-85% of Ni, 10-20% of Cr, 3-8% of Wo and the balance of unavoidable impurities.

Description

Preparation method of diamond wire composite bus Technical Field The application relates to the technical field of diamond wire buses, in particular to a preparation method of a diamond wire composite bus. Background The existing diamond wire bus is mainly two types, one type is a high-carbon steel bus, the bus is made of a wire rod with high carbon content, brass is plated on the surface of the bus, a copper layer on the surface of the bus needs to be deplated at the production end of the diamond wire, nickel is plated on the surface of the bus, then diamond wires are made through electroplating diamond, brass needs to be plated in the manufacturing process of the high-carbon steel diamond wire bus, the copper layer on the surface of the bus needs to be removed at the downstream manufacturing end of the diamond wire, and the manufacturing process is complex, high in energy consumption and not environment-friendly. The other diamond wire bus is a new product tungsten wire diamond wire bus in recent years, and is manufactured by high-temperature drawing of an alloy tungsten rod, and the cost is 4 times that of a high-carbon steel bus. Disclosure of Invention The application aims to provide a preparation method of a diamond wire composite bus, which adopts a wire rod as a core wire, wraps nickel-based alloy on the surface of the wire rod, performs rolling and drawing to integrate the wire rod and the nickel-based alloy, and then performs wet drawing to form the diamond wire composite bus, thereby solving the problems of complex process and environmental protection caused by the need of brass electroplating, brass stripping and nickel layer electroplating before preparing the diamond wire bus in the prior art. In order to achieve one of the above objects, an embodiment of the present application provides a method for manufacturing a diamond wire composite busbar, including the steps of: S1, drawing a wire rod to a diameter of 3.5-4 mm, and quenching; S2, wrapping the nickel-based alloy with the thickness of 0.5-1.5 mm outside the wire rod subjected to the step S1, and then rolling; s3, drawing the wire rod wrapped with the nickel-based alloy, and fusing the wire rod and the nickel-based alloy to obtain a semi-finished product of the composite bus; And S4, carrying out multi-pass wet drawing to finally obtain the diamond wire composite bus with the nickel-based alloy with the thickness of 2-3 mu m on the surface layer. As a further improvement of one embodiment of the application, in the step S1, the wire rod is fed into a heating furnace to be heated to 900-990 ℃ for austenitizing after being drawn, then the temperature is reduced to 80-90 ℃, and the advancing speed of the wire rod in the heating furnace is 20-30 m/min. As a further improvement of one embodiment of the application, the diameter of the semi-finished product of the composite bus is 0.3-0.65 mm. As a further improvement of one embodiment of the application, the diameter of the diamond wire composite bus bar is 27-42 mu m. As a further improvement of an embodiment of the application, in the step S3, after the wire rod and the nickel-based alloy are fused to form a semi-finished product of the composite bus, quenching is performed again, wherein the semi-finished product of the composite bus is sent into a heating furnace to be heated to 850-960 ℃, then is rapidly cooled to 85-92 ℃, and the advancing speed of the semi-finished product of the composite bus in the heating furnace is 70-90 m/min. As a further improvement of one embodiment of the application, in the step S4, the semi-finished product of the composite bus is subjected to wet drawing by a wire drawing machine, and the drawing speed is 8-14 m/S. As a further improvement of an embodiment of the application, during wet drawing, the semi-finished product of the composite bus is drawn in the impregnating solution, wherein the temperature of the impregnating solution is 38-42 ℃, and the concentration of the impregnating solution is 8-12%. As a further improvement of an embodiment of the present application, in step S2, the wire rod wrapped with the nickel-based alloy is rolled by the upper and lower semicircular rollers, and the semicircular rollers apply pressure to the wire rod and the nickel-based alloy to press the wire rod and the nickel-based alloy together. As a further improvement of an embodiment of the application, the chemical components of the wire rod comprise, by mass, 0.9% -1.15% of C, 0.25% -0.45% of Mn, 0.15% -0.35% of Si, 0.01% -0.04% of Cr, and the balance of Fe and unavoidable impurities. As a further improvement of one embodiment of the application, the nickel-based alloy comprises, by mass, 65-85% of Ni, 10-20% of Cr, 3-8% of Wo and the balance of unavoidable impurities. The one or more technical schemes provided by the application have at least the following technical effects or advantages: According to the preparation method of the diamond wire composite bus, after the