Corrosion-resistant abrasion-resistant multi-component nickel brass alloy and preparation method thereof

A technology of nickel brass and alloy, which is applied in the field of corrosion-resistant and wear-resistant multi-component nickel brass alloy and its preparation and processing, can solve the problem of weak resistance to dezincification corrosion and stress corrosion, and alloy properties that can only meet the needs of shallow sea areas and are difficult to meet Use requirements and other issues to achieve the effect of unique metallic luster, good cold and hot processing characteristics, and high strength

Active Publication Date: 2016-03-02
NINGBO XINGYE SHENGTAI GROUP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] As a corrosion-resistant copper-based alloy, HNi65-5 alloy is often used to make copper-based parts such as ship parts, steam and water pipes, while the "zinc" equivalent coefficient in HNi65-5 alloy is 25.7%, and its zinc content is still high, resulting in Its resistance to dezincification corrosion and stress corrosion is still weak, so the alloy properties can only meet the shallow sea area; in addition, its wear resistance is low, it is difficult to meet the further use requirements, but as the ocean development moves towards the deep sea, the resistance to Corrosion and wear resistance put forward more stringent requirements, so it is necessary to develop new corrosion-resistant and wear-resistant copper-based alloy materials to meet the development needs of marine engineering equipment

Method used

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  • Corrosion-resistant abrasion-resistant multi-component nickel brass alloy and preparation method thereof
  • Corrosion-resistant abrasion-resistant multi-component nickel brass alloy and preparation method thereof

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preparation example Construction

[0027] The preparation and processing technology of the copper alloy described in the present invention are: a. batching, feeding, smelting and casting according to weight percentage; b face milling; c. one cold rolling; d. trimming; e. one intermediate annealing; .pickling; g. secondary cold rolling; h. secondary intermediate annealing; i. pickling; j. finish rolling; k. low temperature annealing; l. pickling; library.

[0028] The alloy of the present invention is smelted using the following raw materials: electrolytic copper, industrial pure nickel, copper-manganese alloy, pure aluminum, pure indium, copper-boron alloy, copper-cobalt alloy, and phosphorus-copper alloy.

Embodiment 1

[0030] The composition of the alloy is shown in Example 1 of Table 1.

[0031] 1. Melting: use non-vacuum induction furnace for melting. The order of adding the alloy is: first add copper (Cu), after melting, then add pure aluminum (Al), nickel (Ni), copper-manganese alloy (Cu-Mn), then add zinc (Zn), and then add Copper-boron alloy (Cu-B), pure indium (In), copper-cobalt alloy (Cu-Co), add 0.5‰ phosphorus copper (Cu-P) alloy to deoxidize after passing the component test, and cover with calcined charcoal; the smelted The temperature is 1230°C, and the casting temperature is controlled at 1150°C.

[0032] 2. Face milling: face milling of the alloy (0.6mm milling on the upper and lower surfaces).

[0033] 3. Primary cold rolling: 80% deformation treatment is performed on the alloy strip after face milling.

[0034] 4. Primary annealing: put the cold-rolled strip into a bell-type heat treatment furnace for annealing, the annealing temperature is 500°C, and the holding time is ...

Embodiment 2

[0041] The composition of the alloy is shown in Example 2 of Table 1.

[0042]1. Melting: use non-vacuum induction furnace for melting. The order of adding the alloy is: first add copper (Cu), after melting, then add pure aluminum (Al), nickel (Ni), copper-manganese alloy (Cu-Mn), then add zinc (Zn), and then add Copper-boron alloy (Cu-B), pure indium (In), copper-cobalt alloy (Cu-Co), add 0.5‰ phosphorus copper (Cu-P) alloy to deoxidize after passing the component test, and cover with calcined charcoal; the smelted The temperature is 1200°C, and the casting temperature is controlled at 1140°C.

[0043] 2. Face milling: face milling of the alloy (0.6mm milling on the upper and lower surfaces).

[0044] 3. Primary cold rolling: the alloy strip after face milling is subjected to 85% deformation treatment.

[0045] 4. Primary annealing: put the cold-rolled strip into a bell-type heat treatment furnace for annealing, the annealing temperature is 500°C, and the holding time is 5...

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Abstract

The invention relates to a corrosion-resistant abrasion-resistant multi-component nickel brass alloy and a preparation and processing method thereof, and belongs to the field of processing of nonferrous metals. The alloy comprises the following components by weight percent: 74.0-76.0% of Cu, 4.75-5.25% of Ni, 0.2-0.4% of Al, 0.6-0.9% of Mn, and the balance of Zn, and the alloy further comprises three elements namely Co, B and In. The material is obtained through processing treatments steps such as melting, casting, primary rolling, primary intermediate annealing, acid pickling, intermediate rolling, secondary intermediate annealing, acid pickling, finish rolling and low-temperature annealing treatment. According to the copper alloy, the tensile strength sigma b is 500-700 MPa, the Vickers hardness is HV 150-185, the corrosion rate in a simulated sea water test is 0.012-0.015 mm/a, the mass wearing quality is 0.65-0.8 mg, and the alloy can be widely applied to parts of ships and cooper-based parts of steam and water pipes.

Description

technical field [0001] The invention relates to a corrosion-resistant and wear-resistant multi-component nickel brass alloy and a preparation and processing method thereof, belonging to the field of nonferrous metal processing. Background technique [0002] Copper alloys have been widely used as functional materials because of their good electrical conductivity, thermal conductivity and heat dissipation properties. However, with the continuous development of the market field, the application fields of copper-based alloy materials are gradually expanding, such as corrosion resistance and wear resistance. Or anti-counterfeiting alloy materials, especially as the application field of corrosion-resistant and wear-resistant alloy materials, is gradually becoming prominent, and it has become a new market field for copper-based materials. [0003] In recent years, my country has made great progress in marine transportation, utilization of marine resources, and coastal and offshore ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22C1/03C22F1/08
CPCC22C1/03C22C9/04C22F1/08
Inventor 马吉苗刘峰王建立郑芸汪东亚宋小文胡望意钟林福徐央军施建英徐春利马爱萍苑和锋
Owner NINGBO XINGYE SHENGTAI GROUP
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