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Novel erosion resistant cupronickel alloy and preparation method thereof

A corrosion-resistant, cupronickel technology, applied in the field of corrosion-resistant cupronickel alloy and its preparation, can solve the problems of high price and restrict the use of B30 alloy, and achieve the effect of reducing production difficulty, improving mechanical properties and corrosion resistance, and simplifying the preparation process

Inactive Publication Date: 2012-10-17
NINGBO XINGYE SHENGTAI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since nickel is a scarce strategic material, the price is relatively expensive, which greatly limits the use of B30 alloy

Method used

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  • Novel erosion resistant cupronickel alloy and preparation method thereof

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Effect test

Embodiment 1

[0025] The alloy of the present invention adopts the following raw materials for smelting: electrolytic copper, pure nickel, copper iron, copper manganese and copper yttrium intermediate alloy, pure tin. The composition of the alloy is shown in Example 1 of Table 1.

[0026] 1. Melting: use non-vacuum induction furnace for melting. The order of adding the alloy is: first add electrolytic copper, pure nickel, copper-iron intermediate alloy, copper-manganese intermediate alloy, raise the temperature to 1250°C, and after the melt is completely melted, cover it with charcoal and keep it warm for 10 minutes, then add pure tin and copper Yttrium master alloy, then covered with burning charcoal. The converter is poured into the holding furnace. After fully stirring and degassing, stand still for 5 minutes and cast out of the furnace. The casting temperature is 1150°C, the outlet temperature of the ingot is 320°C, and the outlet water temperature is 50°C.

[0027] 2. Face milling: ...

Embodiment 2

[0035] The alloy of the present invention adopts the following raw materials for smelting: electrolytic copper, pure nickel, copper iron, copper manganese and copper yttrium intermediate alloy, pure tin. The composition of the alloy is shown in Example 2 of Table 1.

[0036] 1. Melting: use non-vacuum induction furnace for melting. The order of adding the alloys is: electrolytic copper, pure nickel, copper-iron master alloy, copper-manganese master alloy, raise the temperature to 1270°C until the melt is completely melted, cover with charcoal, keep warm for 10min, add pure tin and copper yttrium Alloy, then covered with burning charcoal. The converter is poured into the holding furnace. After fully stirring and degassing, stand still for 5 minutes and cast out of the furnace. The casting temperature is 1170°C, the outlet temperature of the ingot is 340°C, and the outlet water temperature is 52°C.

[0037] 2. Face milling: Milling the alloy, milling 1mm on the upper and lowe...

Embodiment 3

[0045] The alloy of the present invention adopts the following raw materials for smelting: electrolytic copper, pure nickel, copper iron, copper manganese and copper yttrium intermediate alloy, pure tin. The composition of the alloy is shown in Example 3 of Table 1.

[0046] 1. Melting: use non-vacuum induction furnace for melting. The order of adding the alloys is: electrolytic copper, pure nickel, copper-iron master alloy, copper-manganese master alloy, raise the temperature to 1260°C, until the melt is completely melted, cover with charcoal, keep warm for 10min, add pure tin and copper yttrium Alloy, then covered with burning charcoal. The converter is poured into the holding furnace. After fully stirring and degassing, stand still for 5 minutes and cast out of the furnace. The casting temperature is 11-80°C, the outlet temperature of the ingot is 350°C, and the outlet water temperature is 55°C.

[0047] 2. Face milling: Milling the alloy, milling 1mm on the upper and lo...

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Abstract

The invention relates to a novel erosion resistant cupronickel alloy and a preparation method of the novel erosion resistant cupronickel alloy, belonging to the field of nonferrous metal processing. The novel erosion resistant cupronickel alloy comprises the following components in percentage by weight: 11-13% of Ni, 0.5-2.0% of Fe, 0.5-2% of Mn and the balance of Cu, wherein the summation of the weight percentages of the Fe and the Mn is more than or equal to 1.0 and less than or equal to 3. Through the procedures of fusion casting, cold rolling, intermediate annealing, cold rolling, final annealing and final hardening, the tensile strength of the alloy can reach 550-650MPa, and the elongation is 18-30%, so the novel erosion resistant cupronickel alloy can be used for replacing B30 alloy in the market and applied to the fields of instruments, shipbuilding, petrochemical industry, medical apparatus and instruments and the like and has a wide application prospect.

Description

technical field [0001] The invention relates to a novel corrosion-resistant white copper alloy and a preparation method thereof. The product can replace the existing B30 alloy material, and can be applied in the fields of instruments, petrochemical industry, medical devices, shipbuilding, etc., and belongs to the field of nonferrous metal processing. Background technique [0002] White copper for industrial use can be divided into two categories: structural white copper and precision resistance alloy white copper. Among them, the structural cupronickel is mainly B30, which has the advantages of good ductility, high hardness, beautiful color, corrosion resistance, and deep drawability. It is widely used in shipbuilding, petrochemical, electrical appliances, instruments, medical equipment, daily necessities, handicrafts, etc. field. [0003] Because nickel is a scarce strategic material, the price is relatively expensive, which greatly limits the use of B30 alloy. In recent ...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C1/03C22F1/08
Inventor 马万军马吉苗王建立苑和锋史久华汪德强彭丽军黄国杰
Owner NINGBO XINGYE SHENGTAI GROUP
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