CN105177395A

CN105177395A - Manufacturing technique of nickel-copper alloy

Info

Publication number: CN105177395A
Application number: CN201510754745.1A
Authority: CN
Inventors: 蒋波
Original assignee: JIANGSU LEAP MACHINERY Co Ltd
Current assignee: JIANGSU LEAP MACHINERY Co Ltd
Priority date: 2015-11-09
Filing date: 2015-11-09
Publication date: 2015-12-23

Abstract

The invention discloses a manufacturing technique of a nickel-copper alloy. The invention is characterized in that the nickel-copper alloy mainly comprises the following components in percentage by weight: 35-50% of copper, 8-15% of iron, 10-15% of chromium, 0.5-2% of rhenium, 1.25-2.25% of manganese, 0.15-0.2% of silicon, 0.05-0.1% of magnesium, 0.1-0.15% of titanium, at most 0.5% of other components and the balance of nickel. The manganese can improve the metallurgical structure of the material, improve the as-cast structure of the alloy, enhance the compactness of the material and promote the combination of the base, thereby effectively enhancing the high-temperature oxidation resistance and corrosion resistance, enhancing the strength, prolonging the service life of the material product and lowering the cost. The magnesium, which is used as a fluxing agent, can absorb abundant oxygen, hydrogen, nitrogen and other gases in the heating process, and thus, is an ideal degasser. The titanium has favorable corrosion resistance, and can further enhance the corrosion resistance of the material. The silicon is beneficial to enhancing and refining the grains by solid solution, thereby enhancing the metallic properties.

Description

A kind of manufacturing process of corronel

Technical field

The present invention relates to the Application Areas of steel alloy, is a kind of corronel and manufacturing process thereof specifically.

Background technology

Corronel has that erosion resistance is high, elasticity is large, intensity advantages of higher, is widely used in the industries such as shipbuilding, chemical industry, electronics, space flight and aviation.

But the corronel effect of domestic production at present is not still very desirable, original anticorrosion effect cannot be reached, long sea water immersion still can produce certain corrosion, therefore how to improve the performance of corronel and corrosion resistance nature and is still the problem that those skilled in the art need to concentrate on studies.

Summary of the invention

The object of this invention is to provide a kind of manufacturing process of corronel with high strength, erosion resistance.

For achieving the above object, the technical solution adopted in the present invention is: a kind of manufacturing process of corronel, mainly comprises following component, represent with weight percent composition: copper is for 35-50%, iron is 8-15%, and chromium is 10-15%, and rhenium is 0.5-2%, manganese is 1.25-2.25%, silicon is 0.15-0.2%, and magnesium is 0.05-0.1%, and titanium is 0.1-0.15%, surplus is nickel, other composition≤0.5%.

Manufacturing technology steps comprises following operation successively:

(1) feeding: choose nickel in described ratio, copper, iron, chromium, rhenium, manganese, silicon, magnesium, titanium be that preparation of raw material alloy material is for subsequent use;

(2) melting: nickel, copper, iron, chromium, rhenium, manganese, silicon, magnesium, titanium are loaded in smelting furnace successively by step, its concrete operation step: first add nickel, copper, iron, chromium melts, then add rhenium, manganese, silicon, by induction stirring, finally add titanium, magnesium, sampling casting;

(3) anneal: ingot annealing temperature 1150 DEG C--1100 DEG C, annealing time 2.5h;

(4) pickling: alloy surface zone of oxidation is removed, available concentrated nitric acid and hydrofluoric acid, be configured to acid solution, B alloy wire dropped into acid tank internal corrosion, after oxide skin comes off completely, pulls flushing out;

(5) clean annealing: annealing temperature 800 DEG C-850 DEG C;

(6) check.

Beneficial effect of the present invention: manganese can improve the structure of material, improve the as-cast structure of alloy, the compactness of strongthener and facilitate matrix to combine, thus effectively raise high-temperature oxidation resistance and erosion resistance, improve intensity, extend the work-ing life of material product, again reduce cost; Magnesium is fusing assistant, and can absorb the gases such as oxygen, hydrogen, nitrogen in a large number when heating, be desirable getter simultaneously; Titanium has good erosion resistance, can improve the corrosion resistance nature of material further; Silicon is conducive to admittedly melting strengthening crystal grain thinning, improves metallicity.

Compared with existing corronel, there is better intensity and corrosion resistance nature.

Embodiment

Below in conjunction with embodiment, the present invention is described in further detail:

Embodiment 1

A manufacturing process for corronel, mainly comprises following component, represents: copper is for 35%, and iron is 15%, and chromium is 15%, and rhenium is 2%, and manganese is 2.25%, and silicon is 0.2%, and magnesium is 0.1%, and titanium is 0.15%, and nickel is 30%, remaining as other compositions with weight percent composition.

Concrete manufacturing process is as follows:

(5) clean annealing: annealing temperature 800 DEG C-850 DEG C;

(6) check.

Embodiment 2

A manufacturing process for corronel, mainly comprises following component, represents: copper is for 50%, and iron is 8%, and chromium is 10%, and rhenium is 0.5%, and manganese is 2%, and silicon is 0.15%, and magnesium is 0.05%, and titanium is 0.1%, and nickel is 29%, remaining as other compositions with weight percent composition.

Manufacturing technology steps comprises following operation successively:

(5) clean annealing: annealing temperature 800 DEG C-850 DEG C;

(6) check.

Embodiment 3

A manufacturing process for corronel, mainly comprises following component, represents: copper is for 40%, and iron is 10%, and chromium is 12%, and rhenium is 1.5%, and manganese is 2%, and silicon is 0.17%, and magnesium is 0.06%, and titanium is 0.12%, and nickel is 34%, remaining as other compositions with weight percent composition.

Manufacturing technology steps comprises following operation successively:

(5) clean annealing: annealing temperature 800 DEG C-850 DEG C;

(6) check.

Manganese can improve the structure of material, improves the as-cast structure of alloy, the compactness of strongthener and facilitate matrix to combine, thus effectively raise high-temperature oxidation resistance and erosion resistance, improve intensity, extend the work-ing life of material product, again reduce cost; Magnesium is fusing assistant, and can absorb the gases such as oxygen, hydrogen, nitrogen in a large number when heating, be desirable getter simultaneously; Titanium has good erosion resistance, can improve the corrosion resistance nature of material further; Silicon is conducive to admittedly melting strengthening crystal grain thinning, improves metallicity.

Following form is the form of performance comparison between each embodiment and existing corronel.

Claims

1. the manufacturing process of a corronel, it is characterized in that: mainly comprise following component, represent with weight percent composition: copper is for 35-50%, and iron is 8-15%, chromium is 10-15%, rhenium is 0.5-2%, and manganese is 1.25-2.25%, and silicon is 0.15-0.2%, magnesium is 0.05-0.1%, titanium is 0.1-0.15%, and surplus is nickel, other composition≤0.5%.

2. the manufacturing process of corronel according to claim 1, is characterized in that: comprise following operation successively:

(5) clean annealing: annealing temperature 800 DEG C-850 DEG C;

(6) check.