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A kind of preparation method of high-strength wear-resistant copper alloy pipe

A wear-resistant copper and copper alloy technology, applied in the direction of manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of high complexity, long process, and complicated conversion process, and achieve the effect of increasing the effect of dispersion strengthening and improving the strength

Active Publication Date: 2021-10-29
江苏隆达超合金股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] None of the above-mentioned patents involves the processing technology of copper-nickel-tin pipes. In pipe processing, the billet must first be made into a pipe billet, so the process is longer, the complexity is greater, and the process is more complicated.

Method used

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  • A kind of preparation method of high-strength wear-resistant copper alloy pipe
  • A kind of preparation method of high-strength wear-resistant copper alloy pipe
  • A kind of preparation method of high-strength wear-resistant copper alloy pipe

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Experimental program
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Effect test

Embodiment 1

[0033] In this embodiment, a method for producing high-strength copper alloy large-scale ingots by vacuum smelting is obtained by the following method:

[0034] (1) Ingredients: The raw materials used and their ingredients are shown in Table 1.

[0035] Table 1

[0036]

[0037] (2) Melting: Use a vacuum induction furnace for smelting. After the alloy is completely melted, refine for 10 minutes, reduce the power, and fill the argon gas to 0.8×10 5 Pa, add manganese alloy in the upper silo, adjust the power to control the temperature of the molten metal;

[0038] (3) Casting: The molten metal casting temperature is 1250°C, using cast iron molds;

[0039] (4) Grinding: turning and grinding the cooled ingot to remove surface scars, cracks and other defects;

[0040] (5) Forging: use high-frequency induction heating to rapidly heat up to 850°C, hold the heat for 20 minutes, forge the ingot into a bar according to the required tube blank size, ensure that the final forging te...

Embodiment 2

[0048] In this embodiment, a method for producing high-strength copper alloy large-scale ingots by vacuum smelting is obtained by the following method:

[0049] (1) Ingredients: The raw materials used and their ingredients are shown in Table 2.

[0050] Table 2

[0051]

[0052] (2) Melting: use a vacuum induction furnace for melting, after the alloy is completely melted, refine for 15 minutes, reduce the power, and fill the argon gas to 0.85×10 after the surface of the alloy liquid is conjunctival 5 Pa, add manganese alloy in the upper silo, adjust the power to control the temperature of the molten metal;

[0053](3) Casting: The molten metal casting temperature is 1270°C, using cast iron molds;

[0054] (4) Grinding: turning and grinding the cooled ingot to remove surface scars, cracks and other defects;

[0055] (5) Forging: High-frequency induction heating is used to rapidly heat up to 900°C and hold for 10 minutes. The ingot is forged into a bar according to the siz...

Embodiment 3

[0063] In this embodiment, a method for producing high-strength copper alloy large-scale ingots by vacuum smelting is obtained by the following method:

[0064] (1) Ingredients: The raw materials used and their ingredients are shown in Table 3.

[0065] table 3

[0066]

[0067] (2) Melting: Use a vacuum induction furnace for melting. After the alloy is completely melted, refine it for 20 minutes, reduce the power, and fill it with argon to 0.95×10 after the surface of the alloy liquid is formed. 5 Pa, add manganese alloy in the upper silo, adjust the power to control the temperature of the molten metal;

[0068] (3) Casting: The molten metal casting temperature is 1280°C, using cast iron molds;

[0069] (4) Grinding: turning and grinding the cooled ingot to remove surface scars, cracks and other defects;

[0070] (5) Forging: Rapidly heat up to 1000°C by high-frequency induction heating, hold for 5 minutes, forge the ingot into a bar according to the required size of th...

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Abstract

The invention discloses a preparation method of a high-strength wear-resistant copper alloy pipe, which comprises the following components and mass percentages: nickel 14-16%, tin 7-9%, niobium 0-0.2%, manganese 0-0.8%, and the balance is copper and unavoidable impurities, the present invention also discloses its preparation method: through steps such as batching, smelting, casting, grinding, forging, solution treatment, machining, cold rolling, sizing detection, strip treatment, etc., high-quality copper-nickel Tin alloy tubing. The advantages are: the high-frequency induction heating can quickly heat the ingot to the temperature required by the process, and prevent the segregation defects caused by the slow heating speed; control the heating speed, final forging temperature and cooling speed, so as to prevent the segregation in the tube billet Defects occur; a complete copper-nickel-tin pipe processing method is provided, and the method is suitable for the production of small batches of copper-nickel-tin pipes with multiple specifications.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal processing, and in particular relates to a preparation method of a high-strength wear-resistant copper alloy pipe. Background technique [0002] Copper-nickel-tin alloys have the characteristics of high strength, elasticity, certain conductivity, excellent corrosion resistance and friction performance, high temperature stress resistance, non-toxicity, and low cost. Among them, Cu-15Ni-8Sn alloys are used After a large deformation heat treatment, due to the decomposition of phases, a periodic amplitude-modulated structure is formed in the alloy, and an ultra-high-strength copper alloy with a tensile strength of 1400 MPa can be obtained, thereby replacing Cu-Be alloys, which has broad application prospects and is therefore very popular. Big attention. [0003] At present, most of the patents on copper-nickel-tin alloys involve the design of components and the production of rods. There is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/06C22C1/03C22F1/08C21D9/08C22F1/02B21C37/06
CPCB21C37/06C21D9/085C22C1/03C22C9/06C22F1/02C22F1/08
Inventor 高鑫浦海涌李淑苹周向东郑晓飞曾秋婷
Owner 江苏隆达超合金股份有限公司
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