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A kind of high-nickel-zinc nickel-nickel alloy matrix alloy welding wire and preparation method thereof

An alloy welding wire, high-nickel-zinc technology, applied in welding equipment, metal processing equipment, welding medium, etc., can solve the problems of limited application, achieve high wear resistance, high bonding strength, and good fluidity

Active Publication Date: 2016-04-06
厦门火炬特种金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, many new products have emerged in foreign markets in recent years. The carcass alloy has a tested strength of 600-800MPa, a hardness of HB200-300, good surfacing weldability, high interface bonding strength, and a longer service life of the surfacing layer. But the price is 4 to 5 times that of domestic materials, which greatly limits the application in the domestic market

Method used

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  • A kind of high-nickel-zinc nickel-nickel alloy matrix alloy welding wire and preparation method thereof
  • A kind of high-nickel-zinc nickel-nickel alloy matrix alloy welding wire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Raw materials copper, nickel and zinc are mixed in the form of pure metal, chromium, boron, aluminum, silicon, and iron are mixed in the form of copper-chromium, copper-boron, aluminum-silicon, and iron-nickel master alloy, and the rare earth metal is cerium.

[0038] 2. Put the metal and intermediate alloy into the heating furnace in the following order to melt into molten metal, and do the pre-furnace analysis;

[0039] The order of feeding is: copper → nickel → iron nickel → copper chromium → copper boron → aluminum silicon → zinc → rare earth.

[0040] The percentage by weight that charge obtains after analyzing is as follows:

[0041] Zinc 27.05%, Nickel 30.50%, Chromium 3.30%,

[0042] Iron 1.45%, boron 0.89%, silicon 0.45%,

[0043] 0.45% aluminum, 0.05% cerium, and copper as the balance.

[0044] 3. After completing the pre-furnace analysis and confirming that the molten metal meets the product requirements, the temperature of the molten metal is raised to...

Embodiment 2 5

[0051] The basic principles and processes of Examples 2-5 are the same as those of Example 1, the difference being that the proportions of each component in the alloy are different. Refer to Table 2 for the product components and performance parameters of each example.

[0052]

[0053] Cemented carbide surfacing electrodes are sintered from cemented carbide particles and carcass alloys. Studies at home and abroad have shown that the sintering effect of matrix alloys in powder and block shapes is poor, and the sintering effect of wire materials is the best. Since the alloy structure provided by the present invention is a eutectic or near-eutectic matrix structure, the alloy processing and forming performance of this type of structure is extremely poor, and cannot be prepared into wire. Therefore, the present invention uses computer-controlled horizontal continuous casting technology to prepare wire billets with a diameter of 3.2 mm, which can be directly used for sintering ...

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Abstract

The invention discloses a nickelic packfong matrix alloy solder wire and a preparation method thereof, wherein the matrix alloy comprises the following components in percentage by weight: 20-35% of zinc, 20-35% of nickel, 1.0-4.0% of chromium, 0.5-2.0% of iron, 0.5-2.0% of boron, 0.2-1.0% of silicon, 0.2-1.0% of aluminum, 0.02-0.1% of rare earth and the balance of copper. Compared with the traditional matrix alloy H62 brass and Cu10Ni40Zn, the nickelic packfong matrix alloy solder wire has the following characteristics: (1), the strength is higher; (2) the wear-resisting property is better; (3) the interface bonding force with rolled steel and hard alloy is greater.

Description

technical field [0001] The invention relates to a high-nickel-zinc white copper carcass alloy welding wire for preparing hard alloy surfacing electrodes and a preparation method thereof, belonging to the technical field of new materials. Background technique [0002] Cemented carbide surfacing electrode is prepared by sintering tungsten carbide particles and carcass alloy welding wire. This electrode is used for surfacing and welding the easy-wear working face of downhole operation tools in the petroleum drilling industry. [0003] In the 1970s and 1980s, H62 brass was generally used as the matrix alloy welding wire in the domestic market. Later studies have shown that copper-nickel-zinc alloy (zinc-nickel copper) has good wettability with cemented carbide and steel, and is suitable for use as a matrix alloy for the preparation of cemented carbide surfacing electrodes. Therefore, some domestic manufacturers increase the strength and wear resistance of the surfacing layer by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/04C22C9/06C22C1/03C22F1/08B23K35/28
Inventor 李祥郭初蕾冯凌集郭文龙刘永红卢晓军
Owner 厦门火炬特种金属材料有限公司