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Dipping solder for carcass drill and preparation method of dipping solder

A solder and drill technology, used in welding equipment, welding/cutting media/materials, welding media, etc., can solve the problems of high cost, holes in the product, and uneven surface, and achieve good wettability and adhesion. Convenient, smooth finish

Inactive Publication Date: 2018-02-27
成都哈顿石油钻采工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3. At present, the sintered matrix drill bit adopts the graphite outer film and the manufacturing method of the ceramic inner mold: the process is difficult, the cost is high, the efficiency is low, and the labor intensity is high.
[0008] Therefore, the matrix drill bit has obvious advantages, but in the production process of the matrix drill bit, the traditional dipping solder has poor wettability and adhesion to various cast tungsten carbide, and the sintered product has holes and the surface is not smooth. , low toughness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An impregnated solder for a matrix drill bit. The impregnated solder is composed of a copper-nickel-manganese-zinc-lithium-silicon alloy. In terms of weight percentage, the composition of the copper-nickel-manganese-zinc-lithium-silicon alloy includes 14% nickel, 23 % manganese, 8.5% zinc, 0.2% silicon, 0.02% lithium, and the balance is copper.

[0024] The above-mentioned preparation method for dipping solder for the matrix drill bit comprises the following steps:

[0025] S1. Weighing: Weigh each alloy raw material according to the above formula ratio, and set aside;

[0026] S2. Smelting: First add copper and nickel into the melting furnace, heat to 1450°C until the nickel is melted, then add manganese, zinc, lithium and silicon into the melting furnace, and fuse for 8 minutes to obtain a melting solution;

[0027] S3. Cooling: Take a crucible with a hole in the bottom, heat it to 850°C, add the melting liquid into the crucible, connect a container with cooling oil ...

Embodiment 2

[0030] An impregnated solder for a matrix drill bit. The impregnated solder is composed of a copper-nickel-manganese-zinc-lithium-silicon alloy. In terms of weight percentage, the composition of the copper-nickel-manganese-zinc-lithium-silicon alloy includes 16% nickel, 26% % manganese, 10% zinc, 1.5% silicon, 0.08% lithium, and the balance is copper.

[0031] The above-mentioned preparation method for dipping solder for the matrix drill bit comprises the following steps:

[0032] S1. Weighing: Weigh each alloy raw material according to the above formula ratio, and set aside;

[0033] S2. Smelting: First add copper and nickel into the melting furnace, heat to 1550°C until the nickel is melted, then add manganese, zinc, lithium and silicon into the melting furnace, and fuse for 15 minutes to obtain a melting solution;

[0034] S3. Cooling: Take a crucible with a hole in the bottom, heat it to 900°C, add the melting liquid into the crucible, connect a container with cooling oil...

Embodiment 3

[0037] An impregnated solder for a matrix drill bit. The impregnated solder is composed of a copper-nickel-manganese-zinc-lithium-silicon alloy. In terms of weight percentage, the composition of the copper-nickel-manganese-zinc-lithium-silicon alloy includes 15% nickel, 24 % manganese, 9% zinc, 0.5% silicon, 0.04% lithium, and the balance is copper.

[0038] The above-mentioned preparation method for dipping solder for the matrix drill bit comprises the following steps:

[0039] S1. Weighing: Weigh each alloy raw material according to the above formula ratio, and set aside;

[0040] S2. Smelting: First add copper and nickel into the melting furnace, heat to 1480°C until the nickel is melted, then add manganese, zinc, lithium and silicon into the melting furnace, and fuse for 10 minutes to obtain a melting solution;

[0041] S3. Cooling: Take a crucible with a hole in the bottom, heat it to 870°C, add the melting liquid into the crucible, connect a container with cooling oil o...

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PUM

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Abstract

The invention discloses a dipping solder for a carcass drill and a preparation method of the dipping solder. The dipping solder consists of copper nickel manganese zinc lithium silicon alloy which comprises the following components by weight percent: 14-16% of nickel, 23-26% of manganese, 8.5-10% of zinc, 0.2-1.5% of silicon, 0.02-0.08% of lithium and the balance of copper. The preparation methodcomprises weighing, smelting, cooling and washing. The dipping solder is used for sintering the carcass drill. Through reasonable compounding, the dipping solder is manufactured by a special preparation process, is extremely low in content of metal oxides, and particularly has very good wettability and cohesiveness to various tungsten carbides, and the sintered drill is pore-free, smooth and cleanin surface and splendid in toughness. The preparation method is simple to operate, convenient in preparation, low in cost and suitable for industrial large-scale production.

Description

technical field [0001] The invention relates to an impregnated solder, in particular to an impregnated solder for a carcass drill bit and a preparation method thereof. Background technique [0002] Solder alloy is an alloy material composed of two or more metal elements with general metal characteristics. At present, the commonly used solder alloys are mostly binary alloys or multi-element alloys formed by adding tin as the main body and adding other metal elements. Because of their excellent corrosion resistance and solderability, they can be used as electronic devices, wires, and printed circuit boards. It is widely used in the electronics industry as a protective layer and solderability coating for integrated circuit boards. [0003] Traditional solder alloys mostly use tin-lead alloys. The cost of lead metal is low and the wettability is good. Moreover, the melting point of tin-lead alloys containing 37% lead is relatively low. It can be melted at 183°C, and the solderi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/05C22C30/02C22C30/06C22C1/02B23K35/30B23K35/40
CPCC22C9/05B23K35/302B23K35/40C22C1/02C22C30/02C22C30/06
Inventor 周桃杰
Owner 成都哈顿石油钻采工具有限公司