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Continuous preparation method of foamed nickel chrome alloy

A foamed nickel and chromium alloy technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve the problems of excessive carbon deposition, affecting the performance of nickel-chromium alloy, etc., and achieve short production time and distribution of chromium plating. Uniform, low energy consumption

Active Publication Date: 2018-05-25
CHANGDE LYRUN MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method directly uses polyurethane foam as the substrate, and uses polyvinyl alcohol and carboxymethyl cellulose as the binder and rheology regulator, which will easily cause excessive carbon deposition and affect the performance of the final nickel-chromium alloy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The selected aperture is 20PPI, the thickness is 0.9mm, the length is 150m, the width is 1000mm, and the surface density is 100g / m 2 The foamed nickel plate is used as the base material, and the base material is installed on the magnetron sputtering equipment, the vacuum chamber is turned off to evacuate, and the heating tube is turned on for heating. The maximum temperature of the vacuum chamber is set to 220°C. -3 Fill the vacuum chamber with argon gas at Pa, turn on the ion source for 2 minutes, stop heating, turn off the ion source, turn on the bias power supply, and turn on the sputtering target power supply for sputtering. The speed is 0.6m / min, the working vacuum is 0.2Pa, and the sputtering time is 2h. After the whole sputtering process is over, first turn off the sputtering target power supply, close the bias valve, then stop vacuuming, and finally fill with argon for 300s. , to get the semi-finished product of foamed nickel chromium, wrap the semi-finished pro...

Embodiment 2

[0021] The selected aperture is 50PPI, the thickness is 1.4mm, the length is 100m, the width is 850mm, and the surface density is 200g / m 2 The foamed nickel plate is used as the base material, and the base material is installed on the magnetron sputtering equipment, the vacuum chamber is turned off to evacuate, and the heating tube is turned on for heating. The maximum temperature of the vacuum chamber is set to 250°C. -3 Fill the vacuum chamber with argon gas at Pa, turn on the ion source for 10 minutes, stop heating, turn off the ion source, turn on the bias power supply, turn on the sputtering target power supply for sputtering, the sputtering target is a cylindrical tube-shaped chromium target, and the tape speed 0.6m / min, the working vacuum is 0.2Pa, and the sputtering time is 3.5h. After the entire sputtering process is over, turn off the sputtering target power, close the bias valve, then stop vacuuming, and finally fill with argon for 300s. Get the foamed nickel-chromi...

Embodiment 3

[0023] The selected aperture is 80PPI, the thickness is 1.9mm, the length is 50m, the width is 600mm, and the surface density is 300g / m 2 The foamed nickel plate is used as the base material, and the base material is installed on the magnetron sputtering equipment, the vacuum chamber is turned off to evacuate, and the heating tube is turned on for heating. The maximum temperature of the vacuum chamber is set to 280°C. -3 Fill the vacuum chamber with argon gas at Pa, turn on the ion source for 15 minutes, stop heating, turn off the ion source, turn on the bias power supply, turn on the sputtering target power supply for sputtering, the sputtering target is a flat chromium target, and the tape speed is 0.5m / min, the working vacuum is 0.3Pa, the sputtering time is 4h, the whole sputtering process is over, turn off the sputtering target power, close the bias valve, then stop vacuuming, and finally continue to fill with argon for 300s to obtain foamed nickel Chrome semi-finished p...

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Abstract

The invention discloses a continuous preparation method of a foamed nickel chrome alloy. The continuous preparation method of the foamed nickel chrome alloy comprises two steps of physical vapor deposition and heat treatment, wherein the heat treatment temperature is 550 to 950 DEG C, and the heat treatment time is 2 to 5h; and finally the homogeneous-phase foamed nickel chrome alloy is obtained.According to the continuous preparation method of the foamed nickel chrome alloy provided by the invention, a vacuum magnetron sputtering technology is utilized for preparing the foamed nickel chromealloy; the used device is provided with two chambers and can be used for continuously sputtering so as to obtain a continuous banded chroming semi-finished product, the coating distribution in a thickness direction is uniform, and after short-time heat treatment, the finally obtained alloy has high purity and the impurity content being less than 1 percent; and the foamed nickel chrome alloy adoptsfoamed nickel as a base material, a binding force of chrome deposited through the magnetron sputtering technology and the base material is good, and alloying can be realized through short-time heat treatment, so that the production efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of alloy materials, and in particular relates to a continuous preparation method of foamed nickel-chromium alloy. Background technique [0002] Due to the characteristics of light weight, large specific surface area, high specific strength, uniform structure, and excellent energy absorption, foam alloy or metal has dual properties of function and structure, and is widely used in chemical industry, energy, catalyst carrier, sound absorption, shock absorption, etc. aspect. Among them, foamed nickel-based alloy is a new type of foam alloy with random openings and high porosity with controllable pore size. It is considered to be the most valuable foam structural engineering material after foamed nickel. Adding chromium to nickel foam can improve the strength of the matrix through solid solution strengthening, especially the high-temperature durability. At the same time, a dense chromium oxide film with strong adhesion is...

Claims

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Application Information

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IPC IPC(8): C23C14/35C23C14/16C23C14/58
CPCC23C14/165C23C14/35C23C14/5806
Inventor 钟发平丁胜芳肖进春蒋素斌彭为
Owner CHANGDE LYRUN MATERIAL
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