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High-strength and high-corrosion-resistance cupronickel alloy and manufacturing method thereof

A corrosive, high-strength technology, applied in the field of copper-nickel alloys, can solve problems such as failure to see, and achieve the effects of low processing cost, good workability and wide application

Active Publication Date: 2012-08-15
沈阳有色金属研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to improve the performance and at the same time improve the corrosion resistance of nickel-nickel copper has been a subject of intensive research for a long time, but no relevant reports on breakthroughs have been seen so far.

Method used

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  • High-strength and high-corrosion-resistance cupronickel alloy and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Prepare alloy materials with electrolytic copper, electrolytic nickel, sponge zirconium, and silicon as raw materials. The design masses of each group are electrolytic copper 10.7 kg, electrolytic nickel 8.9 kg, sponge zirconium 0.015 kg, and metal silicon powder 0.1 kg (packed in steps into a 25 kg vacuum induction furnace). The operation procedure is as follows: put nickel + copper + silicon into the magnesia crucible, put zirconium sponge into the feeding tank → vacuumize → power melting (when the vacuum degree reaches 0.9 ~ 1.0Pa, adjust the power to 30-45KW) → refining 30-40 Minutes → power off until condensation and crusting → power on again for melting (power 15-25KW) → refining for 20-30 minutes, fill with argon to a vacuum of 0.08-0.09MPa, then add sponge zirconium and tilt the furnace for 3-5 times → measure temperature (1380-1420°C) → electrified casting, mold forming, cooling for 10-20 minutes to take ingots → sampling.

[0020] (2) After face milling, ...

Embodiment 2

[0030] (1) Prepare alloy materials with electrolytic copper, electrolytic nickel, sponge zirconium, and silicon as raw materials. The design weight of each group is 10.9 kg electrolytic copper, 8.7 kg electrolytic nickel, 0.02 kg sponge zirconium, and 0.13 kg metal silicon powder (step by step) into a 25 kg vacuum induction furnace). The operation procedure is as follows: put nickel + copper + silicon into the magnesia crucible, put zirconium sponge into the feeding tank → vacuumize → power melting (when the vacuum degree reaches 0.9 ~ 1.0Pa, adjust the power to 30-45KW) → refining 30-40 Minutes → power off until condensation and crusting → power on again for melting (power 15-25KW) → refining for 20-30 minutes, fill with argon to a vacuum of 0.08-0.09MPa, then add sponge zirconium and tilt the furnace for 3-5 times → measure temperature (1380-1420°C) → electrified casting, mold forming, cooling for 10-20 minutes to take ingots → sampling.

[0031] (2) After face milling, the...

Embodiment 3

[0033] (1) Prepare alloy materials with electrolytic copper, electrolytic nickel, sponge zirconium, and silicon as raw materials. The design masses of each group are respectively 11 kg of electrolytic copper, 8.6 kg of electrolytic nickel, 0.025 kg of sponge zirconium, and 0.15 kg of metal silicon powder (packed in steps into a 25 kg vacuum induction furnace). The operation procedure is as follows: put nickel + copper + silicon into the magnesia crucible, put zirconium sponge into the feeding tank → vacuumize → power melting (when the vacuum degree reaches 0.9 ~ 1.0Pa, adjust the power to 30-45KW) → refining 30-40 Minutes → power off until condensation and crusting → power on again for melting (power 15-25KW) → refining for 20-30 minutes, fill with argon to a vacuum of 0.08-0.09MPa, then add sponge zirconium and tilt the furnace for 3-5 times → measure temperature (1380-1420°C) → electrified casting, mold forming, cooling for 10-20 minutes to take ingots → sampling.

[0034] ...

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Abstract

The invention relates to a high-strength and high-corrosion-resistance cupronickel alloy and a manufacturing method thereof. The high-strength and high-corrosion-resistance cupronickel alloy is characterized by comprising cathode copper and electrolytic nickel as main components, less zirconium sponge and metallic silicon powder, and less than or equal to 2.0% of impurities. According to the manufacturing method provided by the invention, a soft alloy end-product is formed by performing the steps of electrically smelting, refining, condensing and crusting, casting and molding, in a vacuum induction furnace, and the like. The high-strength and high-corrosion-resistance cupronickel alloy has high strength and high corrosion resistance, 670-770 MPa tensile strength and 38-45% extension property, so that the property is 40% higher than B19 property, the corrosion resistance is increased by 3 times and the machining property is excellent. The high-strength and high-corrosion-resistance cupronickel alloy has the characteristics of wide application, long service life and the like, and can be used for producing plates, belts, pipes, bars, lines and forging pieces. The high-strength and high-corrosion-resistance cupronickel alloy is widely applied to the industries, such as shipbuilding, chemical industry, manufacturing and metallurgy. The manufacturing method provided by the invention also has the advantages of simple steps of the cupronickel alloy processing technology, low processing cost, easiness in production, and meeting the demands of various application fields on the high-strength and high-corrosion-resistance cupronickel alloy.

Description

technical field [0001] The invention relates to the technical field of copper-nickel alloys, in particular to a high-strength and high-corrosion-resistant white copper alloy and a manufacturing method thereof. Background technique [0002] Due to the advantages of high corrosion resistance, high elasticity and high strength (relative to pure copper), white copper is widely used in shipbuilding, chemical, electronic and other industries. Used in the manufacture of military corrosion-resistant components, various springs and plug-ins. [0003] When Cu and Ni melt at high temperature, they are infinite solid solution, face-centered cubic lattice. At present, the B19 cupronickel produced in China has a tensile strength of 400 σb / MPa and an elongation of 35δ / %. Long-term immersion in seawater will cause certain corrosion. How to improve the performance and improve the corrosion resistance of cupronickel has long been a subject of intensive research by scientific and technical p...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C1/02C22F1/08C21D1/26C21D1/773
Inventor 孙海忠郑新文周明郭春江
Owner 沈阳有色金属研究所有限公司
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