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Nickel-molybdenum-copper alloy and preparation method thereof

A nickel-copper alloy and copper alloy technology, applied in the field of alloys, can solve the problems of nickel-molybdenum alloys with high melting point, difficulty in dissolving, and low yield of alloying elements, and achieve the effect of uniform alloy composition, low melting point, and reasonable composition ratio

Inactive Publication Date: 2010-07-14
LIAONING JIUTONG FRICTION MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of alloy to solve the problem that the melting point of nickel-molybdenum alloy used in the smelting of special steel such as pipeline steel and stainless steel is too high, it is difficult to dissolve, and the yield of alloy elements is low

Method used

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Examples

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Effect test

Embodiment 1

[0023] Embodiment one, taking the production of 1 ton of the nickel-molybdenum-copper alloy described in the present invention as an example, the alloy composition is: by weight percentage, nickel 30%, molybdenum 6%, copper 45%, carbon 0.4%, sulfur 0.04%, Phosphorus 0.03%, silicon 1.5%; balance iron.

[0024] Ingredients: 115kg of cooked molybdenum ore is used, which contains 48-50% molybdenum, sulfur ≤ 0.065%, phosphorus ≤ 0.025%, silicon dioxide 8-12%; appropriate amount of waste nickel, waste copper and waste nickel-copper alloy as raw materials, each According to the target value of nickel and copper elements, the amount of scrap nickel, scrap copper and scrap nickel-copper symbiotic materials shall be determined for tons of alloy; the balance shall be scrap steel.

[0025] Calculated by ton of raw materials, it is necessary to add 47kg of calcium oxide and 9kg of calcium fluoride as slagging agents; reducing agent: 26kg of coke and 3kg of aluminum powder; de-impurity agen...

Embodiment 2

[0032] Embodiment 2, the nickel-molybdenum-copper alloy obtained by the above-mentioned method of the present invention contains 25% nickel, 5% molybdenum, 50% copper, 0.44% carbon, 0.045% sulfur, 0.04% phosphorus, and 1.0% silicon according to weight percentage. The balance is iron.

Embodiment 3

[0033] Embodiment 3, the nickel-molybdenum-copper alloy obtained by the above-mentioned method of the present invention contains 35% nickel, 7% molybdenum, 40% copper, 0.3% carbon, 0.035% sulfur, 0.04% phosphorus, and 1.8% silicon by weight percentage , and the balance is iron.

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PUM

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Abstract

The invention discloses a nickel-molybdenum-copper alloy, which is an alloying agent used for smelting pipe line steel, stainless steel and special steel. The alloy comprises: 20 to 45 percent of nickel, 1 to 8 percent of molybdenum, 18 to 50 percent of copper, less than 0.5 percent of carbon, less than 0.05 percent of sulfur, less than 0.05 percent of phosphorus, less than 2.0 percent of silicon and the balance of ferrum. The alloy can be put at one time during the smelting of the pipe line steel and the like and reduce the labor intensity of smelters.

Description

technical field [0001] The invention relates to an alloy, in particular to a nickel-molybdenum-copper alloy, which is an alloying agent for smelting pipeline steel, stainless steel and special steel. Background technique [0002] The smelting of special steel such as pipeline steel and stainless steel mainly uses metallic nickel and ferromolybdenum as alloying agents, and pure nickel as alloy additives, and the production cost is relatively high. Some also use nickel ore as raw material. Because nickel ore contains low nickel grade, complex composition, and many associated gangues, the production process for extracting nickel is very complicated and the production cost is also high. [0003] CN1540021A invention patent discloses a nickel-molybdenum alloy, its main components are: by weight percentage, nickel 9-50%, molybdenum 9-40%, and the balance is Fe and impurities. The method solves the problem of separate alloying by multiple additions of metallic nickel and ferromoly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/02C22C38/16C22C1/02C22B5/02
Inventor 王宏林曹红岗
Owner LIAONING JIUTONG FRICTION MATERIALS
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