Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for preparing copper-titanium 50 master alloy using magnetic levitation smelting process

A technology for magnetic levitation smelting and intermediate alloys, which is applied in the field of copper alloy preparation and can solve problems such as difficulty in mixing, volatilization loss of metal elements, deviation of Ti content in alloys, etc.

Active Publication Date: 2021-07-06
SIRUI ADVANCED COPPER ALLOY CO LTD
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electromagnetic stirring force used by electromagnetic levitation stirring is limited, and the problem of difficult mixing is more likely to occur when preparing an intermediate alloy with a large titanium content. It is often necessary to prolong the melting time to achieve the purpose of mixing evenly, but too long melting time will easily lead to metal elements. Volatilization loss, resulting in large deviation of Ti content in the final alloy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for preparing copper-titanium 50 master alloy using magnetic levitation smelting process
  • A method for preparing copper-titanium 50 master alloy using magnetic levitation smelting process
  • A method for preparing copper-titanium 50 master alloy using magnetic levitation smelting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing a copper-titanium 50 master alloy using a magnetic levitation smelting process, comprising the following steps:

[0028] (1) Ingredients: Proportion the copper alloy elements according to the weight percentage of 50.5% Ti and Cu as the balance, select and weigh the corresponding raw materials; Ti adopts 0-grade sponge titanium with a purity≧99.7%, and Cu adopts Electrolytic copper plate with purity ≥99.99%;

[0029](2) Alloy smelting pretreatment: The Ti raw material and the Cu raw material are respectively powdered by an electrode induction melting gas atomization system (EIGA method) to obtain Ti powder and Cu powder with a particle size of 150 μm, and the Ti powder and Cu powder After mixing evenly, put it into the crushing chamber of the jet mill, fill in the inert gas to completely isolate the Ti powder and Cu powder from the air, and increase the flow rate of the inert gas to pressurize the Ti powder and Cu powder from two opposite nozzles. ...

Embodiment 2

[0035] A method for preparing a copper-titanium 50 master alloy using a magnetic levitation smelting process, comprising the following steps:

[0036] (1) Batching: according to Ti being 31%-55%, Cu is the weight percent content of surplus to carry out proportioning to copper alloy element, selects and takes by weighing corresponding raw material;

[0037] (2) Magnetic levitation smelting: put the deposited block into the cold crucible of the vacuum magnetic levitation furnace, power on, and vacuumize for about 22min until the vacuum degree reaches 10 -3 Pa, and then rush into argon protection to make the pressure in the furnace reach 0.03MPa. First, increase the power to 110KW at 12KW / min to make the temperature in the furnace reach 1800°C, and heat for 7 minutes until the metal ingot is completely melted and semi-suspended. Under the action of continuous Loren magnetic force, the melt is completely suspended and electromagnetically stirred. , the formed alloy is kept in the...

Embodiment 3

[0042] This example is basically the same as Example 1, except that in step (2) of this example, the Ti raw material and the Cu raw material are respectively powdered by the EIGA method to obtain Ti powder and Cu powder with a particle size of 150 μm. The two metal powders are filled into the product mold for molding, and then the molded compact is sintered in stages. The staged sintering process is first treated at 1380°C for 1 hour, then heated to 1680°C for 1 hour, and sintered copper is obtained after cooling. titanium alloy. Then, the copper-titanium alloy is smelted by magnetic levitation in step (3), and the conditions of other steps are the same as those in Example 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a copper-titanium 50 master alloy using a magnetic levitation smelting process, which comprises the following steps: firstly, the copper alloy elements are proportioned according to the weight percentage content of Ti being 31%-55% and Cu being the balance Put the above metal raw materials into the cold crucible of the vacuum magnetic levitation furnace, power on, vacuumize and fill with argon protection, increase the power gradually to heat up the furnace body, and the Joule heat released from the furnace body will completely melt the metal ingot and form a semi-suspension shape, under the action of continuous Loren magnetic force, the melt is completely suspended and electromagnetically stirred, and the formed alloy is kept in the molten state for a period of time to make the alloy composition homogeneous; finally pouring, cooling, and turning the outer circle to obtain CuTi50 master alloy bar. The CuTi50 master alloy prepared by the method has the advantages of good uniformity, no inclusions, oxidation defects, low gas content, etc., and can be used for smelting copper-titanium alloys (titanium content 1%-5%).

Description

technical field [0001] The invention belongs to the technical field of copper alloy preparation, and in particular relates to a method for preparing a copper-titanium 50 master alloy by using a magnetic levitation smelting process. Background technique [0002] Copper-titanium alloy (1% to 5% Ti content) was developed by the former Soviet Union in the late 1950s. After proper treatment, it has high ductility, elasticity, heat resistance, fatigue resistance, good processing performance and the lowest bending Radius ratio, as well as pulse-free spark performance and good high temperature stress relaxation resistance. Since the beginning of the last century, my country has started the smelting and production process of titanium-copper alloy. According to the production research of Jiangxi Nonferrous Metals Smelter, it uses first-grade sponge titanium and electrolytic copper plates, and uses non-vacuum melting of low-titanium copper alloys. During the production process, depend...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C14/00C22C1/02C22C1/03
CPCC22C9/00C22C14/00C22C1/02C22C1/03
Inventor 王沛王群郭创立周斌王文斌苟锁孙君鹏山瑛
Owner SIRUI ADVANCED COPPER ALLOY CO LTD