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Preparation process of a high-strength wear-resistant copper alloy pipe

A preparation process, technology of wear-resistant copper, applied in the field of preparation process of high-strength wear-resistant copper alloy pipes, can solve the problems of long process, high complexity, complicated process, etc., and achieve the effect of improving strength and increasing the effect of dispersion strengthening

Active Publication Date: 2021-07-30
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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  • Preparation process of a high-strength wear-resistant copper alloy pipe
  • Preparation process of a high-strength wear-resistant copper alloy pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation process of a high-strength wear-resistant copper alloy pipe in this embodiment is obtained by the following method:

[0033] (1) Ingredients: the raw materials used and their proportioning ratio are shown in Table 1,

[0034] Table 1

[0035] Element Grade standard mass percentage Electrolytic copper Cu99.95 GB / T467-2010 76.30％ Electrolytic nickel Ni99.95 GB / T6515-2010 14.00％ Tin ingots Sn99.95 GB / T 728-2010 9.00％ Niobium bar Nb1 GB / T 14842-2010 0.10％ Electrolytic manganese JMn98 GB / T 2774-2010 0.60％

[0036] (2) Smelting: first add electrolytic copper, then add charcoal to cover, then add electrolytic nickel and tin ingots, then add niobium and electrolytic manganese, stir evenly, wait for the temperature of the molten metal to reach 1250°C, keep it warm for 30 minutes and then pour;

[0037] (3) Casting: Semi-continuous casting process is adopted, and the diameter of the ingot is ...

Embodiment 2

[0048] The preparation process of a high-strength wear-resistant copper alloy pipe in this embodiment is obtained by the following method:

[0049] (1) Ingredients: the raw materials used and their proportioning ratio are shown in Table 2,

[0050] Table 2

[0051] Element Grade standard mass percentage Electrolytic copper Cu99.95 GB / T467-2010 76.60％ Electrolytic nickel Ni99.95 GB / T6515-2010 15.00％ Tin ingots Sn99.95 GB / T 728-2010 8.00％ Niobium bar Nb1 GB / T14842-2007 0.20％ Electrolytic manganese JMn98 GB / T 2774-2008 0.20％

[0052] (2) Smelting: First add electrolytic copper, then add charcoal to cover, then add electrolytic nickel and tin ingots, then add niobium and electrolytic manganese, stir evenly, wait until the temperature of the molten metal reaches 1270 ° C, keep it warm for 20 minutes and then pour;

[0053] (3) Casting: Semi-continuous casting process is adopted, and the diameter of the ingot is ...

Embodiment 3

[0064] The preparation process of a high-strength wear-resistant copper alloy pipe in this embodiment is obtained by the following method:

[0065] (1) Ingredients: the raw materials used and their proportioning ratio are shown in Table 3,

[0066] table 3

[0067] Element Grade standard mass percentage Electrolytic copper Cu99.95 GB / T467-2010 76.45％ Electrolytic nickel Ni99.96 GB / T6515-2010 16％ Tin ingots Sn99.97 GB / T728-2010 7％ Niobium bar Nb1 GB / T14842-2007 0.15％ Electrolytic manganese JMn98 GB / T2774-2008 0.40％

[0068] (2) Smelting: first add electrolytic copper, then add charcoal to cover, then add electrolytic nickel and tin ingots, then add niobium and electrolytic manganese, stir evenly, wait for the temperature of the molten metal to reach 1300°C, keep it warm for 30 minutes and then pour;

[0069] (3) Casting: Semi-continuous casting process is adopted, and the diameter of the ingot is The lengt...

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Abstract

The invention discloses a preparation process of a high-strength wear-resistant copper alloy pipe, which contains 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: high-quality copper-nickel-tin alloy tubing. The advantages are: high-frequency induction heating can quickly heat the ingot to the temperature required by the process, preventing the occurrence of segregation defects caused by too slow heating speed, and cooling the high-temperature tube billet by rapid water cooling after extrusion to prevent the occurrence of segregation caused by too slow cooling speed Microscopic segregation, heating with inert gas protection atmosphere, and coordinating reasonable deformation, temperature and time parameters to obtain optimal performance.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal processing, and in particular relates to a preparation process 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/06C22C1/02B22D11/124C22F1/08C22F1/02
CPCB22D11/004B22D11/124C22C1/02C22C9/06C22F1/002C22F1/02C22F1/08
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