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Preparation process of copper-tin alloy

A production process, copper-tin alloy technology, applied in the field of copper-tin alloy production process, can solve the problems of complex copper-tin alloys, low efficiency, low purity, etc., and achieve the effects of reasonable formula, dense castings, and high die-casting yield

Inactive Publication Date: 2013-01-23
江苏海菱碳制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alloy copper tin in the prior art is too complex, and the efficiency is low and the purity is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A manufacturing process of a copper-tin alloy, comprising the following steps: preparing raw materials copper, tin, lead and zinc, raw material copper accounts for 86% of the total mass of raw materials, raw material tin accounts for 13.2% of the total mass of raw materials, raw material lead and zinc Accounting for 0.8% of the total mass of raw materials, first put the raw materials into the melting furnace, and melt them while feeding, and then when the raw materials are melted into a molten state, the molten raw materials are crushed by high-pressure water flow to crush the alloy into alloy powder, and the obtained The alloy powder enters the oxidation hood for oxidation, the oxidation time is 30 minutes, the oxidation temperature is 500°C, the oxidized alloy powder is then reduced, the reduction time is 30 minutes, the reduction temperature is 550°C, the reduced alloy powder passes through the mesh , the fineness of the sieve is 30 meshes, and a binder is added to th...

Embodiment 2

[0017] A manufacturing process of a copper-tin alloy, comprising the following steps: preparing raw materials copper, tin, lead and zinc, raw material copper accounts for 90% of the total mass of raw materials, raw material tin accounts for 9% of the total mass of raw materials, raw material lead and zinc Accounting for 1% of the total mass of raw materials, the raw materials are first put into the melting furnace and melted while feeding, and then when the raw materials are melted into a molten state, the molten raw materials are crushed by high-pressure water flow to crush the alloy into alloy powder, and the obtained The alloy powder enters the oxidation hood for oxidation, the oxidation time is 35 minutes, the oxidation temperature is 550°C, the oxidized alloy powder is then reduced, the reduction time is 35 minutes, the reduction temperature is 600°C, the reduced alloy powder passes through the mesh , the fineness of the sieve is 40 mesh, and the obtained alloy powder is a...

Embodiment 3

[0019] A manufacturing process of a copper-tin alloy, comprising the steps of: preparing raw materials copper, tin, lead and zinc, raw material copper accounts for 95% of the total mass of raw materials, raw material tin accounts for 4.4% of the total mass of raw materials, raw material lead and zinc Accounting for 0.6% of the total mass of raw materials, the raw materials are first put into the melting furnace and melted while feeding, and then when the raw materials are melted into a molten state, the molten raw materials are crushed by high-pressure water flow to crush the alloy into alloy powder, and the obtained The alloy powder enters the oxidation hood for oxidation, the oxidation time is 40 minutes, the oxidation temperature is 600°C, the oxidized alloy powder is then reduced, the reduction time is 40 minutes, the reduction temperature is 700°C, the reduced alloy powder passes through the mesh , the fineness of the sieve is 50 meshes, and a binder is added to the obtain...

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PUM

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Abstract

The invention discloses a preparation process of a copper-tin alloy, which is characterized by comprising the following steps of: preparing copper, tin, lead and zinc as raw materials in mass percentage of 86-97 percent of copper, 3-14 percent of tin and 0.5-1 percent of lead and zinc; putting the raw materials into a melting furnace firstly, and melting the raw materials while feeding the raw materials; after melting the raw materials into a molten state, crushing the raw materials in the molten state by utilizing a high-pressure water flow to enable the alloy to be crushed into an alloy powder; and enabling the alloy powder to enter an oxidation hood to carry out oxidation, carrying out reduction on the oxidized alloy powder, sieving the alloy powder after reduction, adding an adhesive into the alloy powder after sieving, spraying a gel on the mixture after drying to enable the mixture to be gelatinized, and finally carrying out pressurizing formation to obtain the copper-tin alloy. The preparation process has the advantages of reasonable formula, convenience, high die-casing yield and compact casting.

Description

technical field [0001] The invention relates to a manufacturing process of a copper-tin alloy. Background technique [0002] Copper is a non-ferrous metal closely related to human beings. It is widely used in electrical, light industry, machinery manufacturing, construction industry, national defense industry and other fields. It is second only to aluminum in the consumption of non-ferrous metal materials in my country. Tin bronze is the non-ferrous metal alloy with the smallest casting shrinkage, and is used to produce castings with complex shapes, clear outlines and low airtightness requirements. Tin bronze is the most widely used and used in the electrical and electronic industries, accounting for more than half of the total consumption. However, the copper-tin alloys in the prior art are too complex, and have low efficiency and low purity. [0003] Therefore, there is an urgent need for an improved technology to solve this problem in the prior art. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/02C22C1/04
Inventor 周小兵
Owner 江苏海菱碳制品有限公司
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