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Preparation method of high-infiltration-rate infiltrated copper wire

A copper wire and high-melting technology, applied in the field of metallurgical copper infiltration, can solve the problems of restricting the development of high-end powder metallurgy preparation, poor mechanical properties and anti-wear performance, and difficult to clean residues, so as to avoid fracture, improve oxidation resistance, The effect of low production cost

Active Publication Date: 2021-08-20
SIRUI ADVANCED COPPER ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are problems such as low permeability, large density fluctuations, and difficult to clean residues during copper infiltration and sintering on the market, resulting in poor mechanical properties and wear resistance; in addition, the current penetrating agent is mainly in the powder state, and the powder is in the water atomization preparation process. Medium, easy to oxidize, high production cost, complicated process, which largely limits the development of high-end powder metallurgy preparation

Method used

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  • Preparation method of high-infiltration-rate infiltrated copper wire
  • Preparation method of high-infiltration-rate infiltrated copper wire

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1: a kind of preparation method of high infiltration rate copper infiltrating wire material, comprises the following steps:

[0031] S1. Ingredients

[0032] In terms of weight percentage, weigh Ni 0.05%, Mn 0.1%, Fe 1%, Zn 1%, and the balance is Cu; then Ni, Mn, Fe, Zn and Cu are mechanically mixed for 15 minutes to obtain a mixture;

[0033] S2, vacuum melting

[0034] Put the mixture obtained in step S1 into the crucible of the vacuum melting furnace, and then evacuate the vacuum degree in the vacuum melting furnace to 3×10 3 Pa, control the smelting current to 1200A, and the smelting power to 5KW, then refine at 1250°C for 10 minutes, and keep it warm for 5 minutes to obtain an alloy solution;

[0035] S3, casting, out of the oven

[0036] Clean the surface of the mold without impurities and oil stains, then preheat the sprue embedded with the ceramic filter plate to 1100°C, and finally pour the alloy solution obtained in step S2 into the sprue, and th...

Embodiment 2

[0045] Embodiment 2: a kind of preparation method of high infiltration rate copper infiltrating wire material, comprises the following steps:

[0046] S1. Ingredients

[0047] In terms of weight percentage, take Ni 0.25%, Mn 0.5%, Fe 2%, Zn 3%, and the balance is Cu; then Ni, Mn, Fe, Zn and Cu are mechanically mixed for 20min to obtain a mixture; The mixed material is sent to the hydrogen reduction furnace for diffusion, the diffusion temperature is controlled at 300°C, and the diffusion time is 50 minutes. Through the diffusion treatment of the mixed material, the erosion of the prepared copper infiltrated wire on the infiltrated base material is reduced, and the workpiece is improved. Forming effect and depth of copper infiltration;

[0048] S2, vacuum melting

[0049] Put the mixture obtained in step S1 into the crucible of the vacuum melting furnace, and then evacuate the vacuum degree in the vacuum melting furnace to 5×10 3 Pa, control the smelting current to 1400A, an...

Embodiment 3

[0060] Embodiment 3: a kind of preparation method of high infiltration rate copper infiltrating wire material, comprises the following steps:

[0061] S1. Ingredients

[0062] In terms of percentage by weight, weigh Ni 0.5%, Mn 1%, Fe 3%, Zn 5%, and the balance is Cu; then Ni, Mn, Fe, Zn and Cu are mechanically mixed for 35 minutes to obtain a mixture;

[0063] S2, vacuum melting

[0064] Put the mixture obtained in step S1 into the crucible of the vacuum melting furnace, and then evacuate the vacuum degree in the vacuum melting furnace to 6×10 3 Pa, control the smelting current to 1600A, and the smelting power to 8KW, then refine at 1280°C for 20 minutes, and heat-preserve for 15 minutes to obtain an alloy solution; heat the alloy solution to 850°C, heat-insulate for 15 minutes, and then heat up to 1050°C , heat preservation treatment for 10 minutes, and finally heat the temperature to 300°C at a rate of 8°C / min. By performing the above operations on the alloy solution, the...

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Abstract

The invention discloses a preparation method of a high-infiltration-rate infiltrated copper wire. The preparation method comprises the following steps: S1, respectively weighing Ni, Mn, Fe, Zn and Cu raw materials, and mechanically mixing Ni, Mn, Fe, Zn and Cu to obtain a mixture; S2, putting the mixture into a vacuum smelting furnace for induction smelting to obtain an alloy solution; S3, pouring the alloy solution into a mold, and carrying out cooling and demolding to obtain an alloy ingot; S4, heating, forging and turning the alloy ingot in an electric furnace to obtain an alloy bar; S5, hot-rolling the alloy bar into a coiled material; S6, drawing the coiled material; and S7, cutting and slitting the alloy wire according to the required length. The preparation method is reasonable in process design, and the infiltrated copper wire prepared by the preparation method is high in permeability, low in manufacturing cost and suitable for large-scale popularization.

Description

technical field [0001] The invention relates to the technical field of metallurgical copper infiltration, in particular to a method for preparing a high infiltration rate copper infiltration wire. Background technique [0002] Powder metallurgy iron-based products are widely used because of their high material utilization rate, high dimensional accuracy, and less processing steps. In powder metallurgy iron-based products, the wear resistance of powder metallurgy products can be significantly improved by copper infiltration process. Therefore, high-grade powder metallurgy iron-based products will be copper infiltrated when sintering the green body. [0003] However, there are problems such as low permeability, large density fluctuations, and difficult to clean residues during copper infiltration and sintering on the market, resulting in poor mechanical properties and wear resistance; in addition, the current penetrating agent is mainly in the powder state, and the powder is i...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C9/00C22C9/04C22F1/08B22D7/00C21D9/52B21C37/04
CPCC22C1/02C22C9/00C22C9/04B22D7/005C22F1/08C21D9/525B21C37/047
Inventor 周斌田东松郭创立孙君鹏王群刘向东苟锁刘琦梁相博
Owner SIRUI ADVANCED COPPER ALLOY CO LTD
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