CN114871632A - Short-process preparation method of copper alloy welding wire for ship - Google Patents
Short-process preparation method of copper alloy welding wire for ship Download PDFInfo
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- CN114871632A CN114871632A CN202210394919.8A CN202210394919A CN114871632A CN 114871632 A CN114871632 A CN 114871632A CN 202210394919 A CN202210394919 A CN 202210394919A CN 114871632 A CN114871632 A CN 114871632A
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- Prior art keywords
- copper alloy
- welding wire
- alloy welding
- marine
- short
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
-
- 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
Abstract
A short-process preparation method of a copper alloy welding wire for ships comprises the following steps: firstly, weighing raw materials according to a copper alloy formula, wherein the mass percent of copper is more than 50%, smelting the raw materials at 1200-1400 ℃, and then carrying out horizontal continuous casting to obtain a marine copper alloy bar with the diameter of 8-12 mm; then carrying out cold drawing on the marine copper alloy bar obtained in the last step for 5-6 times, wherein the deformation of each time is 2-4, and carrying out stress relief annealing after each cold drawing except the last time, wherein the annealing temperature is 700-1000 ℃, and the annealing time is 30-90 minutes, so as to obtain a marine copper alloy welding wire blank; and finally, carrying out size finishing on the marine copper alloy welding wire blank to obtain a marine copper alloy welding wire finished product with the diameter of 1 mm-3 mm and the allowable deviation of the diameter of 4%. The method shortens the process flow of preparing the copper alloy welding wire and realizes the efficient and low-cost preparation of the copper alloy welding wire for the ship.
Description
Technical Field
The invention belongs to the field of processing and preparation of metal material wires, and particularly relates to a short-process preparation method of a copper alloy welding wire for a ship.
Background
The copper alloy for the ship has good cold and hot processing performance, excellent marine organism pollution damage resistance, good seawater corrosion resistance and good welding performance, is widely applied to seawater pipeline systems in the fields of ships, civil ships, offshore platforms and the like, and is matched with circular wires to be largely used in the welding construction of the copper alloy pipeline systems.
The traditional copper alloy welding wire preparation process has more processes, and generally comprises batching, casting, hot rolling, annealing, swaging, wire drawing, peeling and sizing forming, or comprises batching, casting, hot rolling, cold swaging, hot extrusion, cold drawing, solution annealing and the like. The processes have more flows, so that the preparation efficiency of products is low, and the energy consumption and the cost are higher.
Disclosure of Invention
The invention aims to provide a short-process preparation method of a marine copper alloy welding wire, which shortens the process flow of preparing the copper alloy welding wire and realizes efficient and low-cost preparation and processing of the marine copper alloy welding wire.
In order to achieve the purpose, the invention adopts the technical scheme that: a short-process preparation method of a copper alloy welding wire for ships comprises the following steps:
weighing raw materials according to a copper alloy formula, wherein the mass percent of copper is more than 50%, smelting the raw materials at 1200-1400 ℃, and then carrying out horizontal continuous casting to obtain a marine copper alloy bar with the diameter of 8-12 mm;
step two, carrying out cold drawing on the marine copper alloy bar obtained in the step one for 5-6 times, wherein the deformation of each time is 2-4, carrying out stress relief annealing after each time of cold drawing except the last time, wherein the annealing temperature is 700-1000 ℃, and the annealing time is 30-90 minutes, so as to obtain a marine copper alloy welding wire blank;
and step three, carrying out size finishing on the marine copper alloy welding wire blank to obtain a marine copper alloy welding wire finished product with the diameter of 1 mm-3 mm and the allowable deviation of the diameter of 4%.
The 'pass deformation amount is between 2 and 4' means that the ratio of the cross section area of the bar before and after cold drawing is 2 to 4, namely the ratio of the square of the diameter of the bar before drawing to the square of the diameter after drawing is 2 to 4.
In the step one, the raw materials are smelted in an induction smelting furnace.
In the first step, the continuous casting speed is 0.5 m/min-1.5 m/min.
As an example, the copper alloy is BFe30-1-1, wherein the mass percent of nickel is 31%, the mass percent of iron is 0.6%, the mass percent of manganese is 0.8%, the mass percent of titanium is 0.4%, and the balance is copper and impurity elements.
Further, in the first step, the smelting temperature is 1350 ℃, and the continuous casting speed is 1 m/min.
Further, in the second step, 5-pass cold drawing is carried out, the pass deformation is 3, the stress relief annealing is carried out after the previous 4 passes are finished each time, the annealing temperature is 720 +/-10 ℃, and the annealing time is 45 minutes.
As another example, the copper alloy is given a designation BAl 7-7-2-2, wherein the mass percent of nickel is 7%, the mass percent of aluminum is 7%, the mass percent of iron is 2%, the mass percent of manganese is 2%, and the balance is copper and impurity elements.
Further, in the first step, the smelting temperature is 1280 ℃, and the continuous casting speed is 0.5 m/min.
Further, in the second step, 6-pass cold drawing is carried out, the pass deformation is 2.5, the stress relief annealing is carried out after the previous 5 passes are finished each time, the annealing temperature is 850 +/-10 ℃, and the annealing time is 30 minutes.
The invention has the beneficial effects that: according to the invention, the small-diameter copper alloy bar is obtained through horizontal continuous casting, the welding wire blank is prepared through multi-pass cold drawing, and the welding wire finished product within the error allowable range is obtained through size finishing. The copper alloy welding wire prepared by the invention has good product performance and stability through the application of seawater pipeline systems in the fields of ships, ocean engineering and the like.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention in any way.
A short-process preparation method of a copper alloy welding wire for ships is characterized by comprising the following steps:
weighing raw materials according to a copper alloy formula, putting the raw materials into an induction smelting furnace, smelting the raw materials at 1200-1400 ℃, and then carrying out horizontal continuous casting at a continuous casting speed of 0.5-1.5 m/min to obtain a marine copper alloy bar with the diameter of 8-12 mm;
step two, carrying out cold drawing on the marine copper alloy bar obtained in the step one for 5-6 times, wherein the deformation of each time is 2-4, carrying out stress relief annealing after each time of cold drawing except the last time, wherein the annealing temperature is 700-1000 ℃, and the annealing time is 30-90 minutes, so as to obtain a marine copper alloy welding wire blank;
and step three, after size finishing is carried out on the marine copper alloy welding wire blank, a marine copper alloy welding wire finished product with the diameter of 1 mm-3 mm and the allowable deviation of the diameter of 4% is obtained, the surface is smooth, clean and free of defects, and a welding wire fracture is compact and has no tail shrinkage, air holes, layering and inclusion.
Example 1: the embodiment provides a preparation method of a marine copper alloy BFe30-1-1 welding wire with the diameter of 1.5mm, which comprises the following specific steps:
1) weighing raw materials such as copper, nickel, iron, manganese, nickel-titanium intermediate alloy and the like according to chemical components of copper alloy BFe30-1-1, putting the raw materials into an induction smelting furnace, carrying out horizontal continuous casting after the raw materials are completely melted at 1350 ℃, wherein the continuous casting speed is 1 m/min, and obtaining a marine copper alloy BFe30-1-1 bar with the diameter of 8mm, wherein the mass percent of nickel is 31%, the mass percent of iron is 0.6%, the mass percent of manganese is 0.8%, the mass percent of titanium is 0.4%, and the balance is copper and impurity elements;
2) then carrying out cold drawing on the marine copper alloy BFe30-1-1 bar material for 5 times, wherein the deformation of each time is 3, except for the last time, carrying out stress relief annealing after finishing the previous 4 times each time, wherein the annealing temperature is between 720 +/-10 ℃, and the annealing time is 45 minutes, thus obtaining a marine copper alloy BFe30-1-1 welding wire blank;
3) after the marine copper alloy BFe30-1-1 welding wire blank is subjected to size finishing, a marine copper alloy BFe30-1-1 welding wire finished product with the diameter of 1.5mm and the allowable deviation of the diameter of 4% is obtained, the surface of the marine copper alloy BFe30-1-1 welding wire finished product is smooth, clean and free of defects, and a welding wire fracture is compact and free of tail shrinkage, air holes, delamination and inclusion.
Example 2: the embodiment provides a preparation method of a marine copper alloy BAl 7-7-2-2 welding wire with the diameter of 2.0mm, which comprises the following specific steps:
1) weighing raw materials such as copper, nickel, iron, manganese, nickel-titanium intermediate alloy and the like according to the components of copper alloy BAl 7-7-2-2, putting the raw materials into an induction melting furnace, performing horizontal continuous casting after the raw materials are completely melted at 1280 ℃, wherein the continuous casting speed is 0.5 m/min, and obtaining a marine copper alloy BAl 7-7-2-2 bar with the diameter of 12mm, wherein the mass percent of nickel is 7%, the mass percent of aluminum is 7%, the mass percent of iron is 2%, the mass percent of manganese is 2%, and the balance is copper and impurity elements;
2) then carrying out 6-pass cold drawing on the marine copper alloy BAl 7-7-2-2 bar, wherein the pass deformation is 2.5, except for the last time, carrying out stress relief annealing after finishing the previous 5 passes each time, wherein the annealing temperature is 850 +/-10 ℃, and the annealing time is 30 minutes, so as to obtain a marine copper alloy BAl 7-7-2-2 welding wire blank;
3) after the marine copper alloy BAl 7-7-2-2 welding wire blank is subjected to size finishing, a marine copper alloy BAl 7-7-2-2 welding wire finished product with the diameter of 2.0mm and the allowable deviation of the diameter within 4 percent is obtained, the surface of the welding wire finished product is smooth, clean and free of defects, and a welding wire fracture is compact and free of tail shrinkage, air holes, delamination and inclusion.
The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those skilled in the art that the modifications and equivalents of the embodiments of the present invention can be made with reference to the above embodiments, and any modifications and equivalents without departing from the spirit and scope of the present invention are within the scope of the claims of the appended patent application.
Claims (9)
1. A short-process preparation method of a copper alloy welding wire for ships is characterized by comprising the following steps:
weighing raw materials according to a copper alloy formula, wherein the mass percent of copper is more than 50%, smelting the raw materials at 1200-1400 ℃, and then carrying out horizontal continuous casting to obtain a marine copper alloy bar with the diameter of 8-12 mm;
step two, carrying out cold drawing on the marine copper alloy bar obtained in the step one for 5-6 times, wherein the deformation of each time is 2-4, carrying out stress relief annealing after each time of cold drawing except the last time, wherein the annealing temperature is 700-1000 ℃, and the annealing time is 30-90 minutes, so as to obtain a marine copper alloy welding wire blank;
and step three, carrying out size finishing on the marine copper alloy welding wire blank to obtain a marine copper alloy welding wire finished product with the diameter of 1 mm-3 mm and the allowable deviation of the diameter of 4%.
2. The short-process preparation method of the marine copper alloy welding wire according to claim 1, wherein the raw materials are smelted in an induction smelting furnace in the first step.
3. The short-process preparation method of the copper alloy welding wire for the ship according to claim 1, wherein the continuous casting speed in the first step is 0.5 m/min to 1.5 m/min.
4. The short-process preparation method of the copper alloy welding wire for the ship according to claim 1, wherein the copper alloy is BFe30-1-1, wherein the mass percent of nickel is 31%, the mass percent of iron is 0.6%, the mass percent of manganese is 0.8%, the mass percent of titanium is 0.4%, and the balance is copper and impurity elements.
5. The short-process preparation method of the copper alloy welding wire for the ship according to claim 4, wherein in the first step, the melting temperature is 1350 ℃ and the continuous casting speed is 1 m/min.
6. The short-process preparation method of the copper alloy welding wire for the ship according to claim 4, characterized in that in the second step, 5-pass cold drawing is carried out, the pass deformation is 3, the stress relief annealing is carried out after the completion of each of the previous 4 passes, the annealing temperature is 720 ℃ plus or minus 10 ℃, and the annealing time is 45 minutes.
7. The short-process preparation method of the copper alloy welding wire for the ship according to claim 1, characterized in that the copper alloy is BAl 7-7-2-2, wherein the mass percent of nickel is 7%, the mass percent of aluminum is 7%, the mass percent of iron is 2%, the mass percent of manganese is 2%, and the balance is copper and impurity elements.
8. The short-process preparation method of the copper alloy welding wire for the ship as claimed in claim 4, wherein in the first step, the melting temperature is 1280 ℃ and the continuous casting speed is 0.5 m/min.
9. The short-process preparation method of the marine copper alloy welding wire according to claim 4, characterized in that in the second step, 6-pass cold drawing is performed, the pass deformation is 2.5, stress relief annealing is performed after the completion of each of the first 5 passes, the annealing temperature is 850 ℃ plus or minus 10 ℃, and the annealing time is 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210394919.8A CN114871632A (en) | 2022-04-15 | 2022-04-15 | Short-process preparation method of copper alloy welding wire for ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210394919.8A CN114871632A (en) | 2022-04-15 | 2022-04-15 | Short-process preparation method of copper alloy welding wire for ship |
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| CN114871632A true CN114871632A (en) | 2022-08-09 |
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| JPS59191591A (en) * | 1983-04-15 | 1984-10-30 | Nippon Steel Weld Prod & Eng Co Ltd | Production of flux-cored wire for welding |
| CN1334352A (en) * | 2001-07-31 | 2002-02-06 | 上海第一铜棒厂 | Anticorrosion white Cu-Mn alloy and method for making its wire material |
| JP2008264823A (en) * | 2007-04-19 | 2008-11-06 | Hitachi Cable Ltd | Method for manufacturing copper rough-drawing wire and copper wire |
| CN101787463A (en) * | 2010-04-09 | 2010-07-28 | 宁波博威合金材料股份有限公司 | Environmentally-friendly lead-free free-machining zinc white copper and preparation method thereof |
| CN103627925A (en) * | 2013-12-02 | 2014-03-12 | 厦门火炬特种金属材料有限公司 | Nickelic packfong matrix alloy solder wire and preparation method thereof |
| CN106868336A (en) * | 2017-03-17 | 2017-06-20 | 齐鲁工业大学 | A kind of method for preparing white copper alloy without nickel wire rod |
| CN113042934A (en) * | 2021-03-12 | 2021-06-29 | 北京北冶功能材料有限公司 | Preparation method of cobalt-based wear-resistant welding wire with high purity and high density |
| CN113579566A (en) * | 2021-08-12 | 2021-11-02 | 内蒙金属材料研究所 | Preparation method of titanium alloy welding wire and titanium alloy welding wire |
| CN113774250A (en) * | 2021-09-24 | 2021-12-10 | 佛山市顺德区精艺万希铜业有限公司 | High-strength high-heat-conductivity high-corrosion-resistance copper alloy and preparation method thereof |
| CN114147387A (en) * | 2021-12-13 | 2022-03-08 | 郑州大学 | Consumable electrode gas shielded welding aluminum bronze welding wire for build-up welding of inner wall of hydraulic cylinder |
-
2022
- 2022-04-15 CN CN202210394919.8A patent/CN114871632A/en active Pending
Patent Citations (10)
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| JPS59191591A (en) * | 1983-04-15 | 1984-10-30 | Nippon Steel Weld Prod & Eng Co Ltd | Production of flux-cored wire for welding |
| CN1334352A (en) * | 2001-07-31 | 2002-02-06 | 上海第一铜棒厂 | Anticorrosion white Cu-Mn alloy and method for making its wire material |
| JP2008264823A (en) * | 2007-04-19 | 2008-11-06 | Hitachi Cable Ltd | Method for manufacturing copper rough-drawing wire and copper wire |
| CN101787463A (en) * | 2010-04-09 | 2010-07-28 | 宁波博威合金材料股份有限公司 | Environmentally-friendly lead-free free-machining zinc white copper and preparation method thereof |
| CN103627925A (en) * | 2013-12-02 | 2014-03-12 | 厦门火炬特种金属材料有限公司 | Nickelic packfong matrix alloy solder wire and preparation method thereof |
| CN106868336A (en) * | 2017-03-17 | 2017-06-20 | 齐鲁工业大学 | A kind of method for preparing white copper alloy without nickel wire rod |
| CN113042934A (en) * | 2021-03-12 | 2021-06-29 | 北京北冶功能材料有限公司 | Preparation method of cobalt-based wear-resistant welding wire with high purity and high density |
| CN113579566A (en) * | 2021-08-12 | 2021-11-02 | 内蒙金属材料研究所 | Preparation method of titanium alloy welding wire and titanium alloy welding wire |
| CN113774250A (en) * | 2021-09-24 | 2021-12-10 | 佛山市顺德区精艺万希铜业有限公司 | High-strength high-heat-conductivity high-corrosion-resistance copper alloy and preparation method thereof |
| CN114147387A (en) * | 2021-12-13 | 2022-03-08 | 郑州大学 | Consumable electrode gas shielded welding aluminum bronze welding wire for build-up welding of inner wall of hydraulic cylinder |
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| 温景林: "《普通高等教育规划教材 金属挤压与拉拔及周期冷轧成型工程学》", 北京：冶金工业出版社, pages: 221 - 222 * |
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