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Brass alloy smelting device and brass alloy smelting method

A brass alloy and alloy technology, applied in the field of brass alloy smelting equipment, can solve problems such as uneven distribution, uneven flame phenomenon, and uneven temperature of alloy melt, so as to reduce the degree of macro segregation and the degree of macro segregation The effect of reducing and precisely controlling the pouring temperature

Inactive Publication Date: 2016-05-25
ZHEJIANG HAILIANG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Under normal circumstances, the temperature of the alloy melt in the melting furnace is not uniform, and the fire phenomenon of the alloy melt is not uniform. In addition, in actual production, since the zinc element is artificially added in lumps and manually stirred, the labor intensity is high, so the distribution of the zinc element in the alloy melt is uneven, resulting in the phenomenon of fire Inhomogeneity, the unevenness of the fire phenomenon will make it impossible for technicians to accurately control the degree and number of fire spraying of the alloy melt during the brass alloy smelting process, and thus cannot accurately control the pouring temperature of the alloy melt. In addition, the zinc element is in Uneven distribution in the alloy melt will also produce macro-segregation, reducing the quality of the ingot

Method used

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  • Brass alloy smelting device and brass alloy smelting method

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Effect test

Embodiment 1

[0030] Such as figure 1As shown, the electromagnetic generator includes a first electromagnetic generator 21, the first electromagnetic generator 21 is installed at the bottom of the smelting furnace 1, the first electromagnetic generator 21 will generate an alternating magnetic field when energized, because the alloy melt has a conductive Therefore, the alloy melt will be subjected to the Lorentz force F, and the expression of the Lorentz force F is:

[0031] F = ( 1 / μ m ) ( ▿ × B ) × B Formula 1)

[0032] In the formula: is the Hamiltonian, B is the magnetic induction, μ m is the magnetic permeability.

[0033] Since the alternating magnetic field will produce different magnetic induction intensities, the Lorentz force F generated in the alloy me...

Embodiment 2

[0040] Such as figure 2 As shown, the electromagnetic generator includes a second electromagnetic generator 22, and the second electromagnetic generator 22 is installed on the side of the melting furnace 1. When the second electromagnetic generator 22 is energized, according to the formula (1) to the formula ( 3) It can be seen that the second electromagnetic generator 22 will cause the alloy melt to generate horizontal convection, and the horizontal convection of the alloy melt has the following benefits: 1. The alloy melt with a low temperature in the center of the melting furnace 1 and the two Heat transfer occurs between the alloy melts with high side temperature, thereby reducing the temperature gradient of the alloy melt, and promoting the uniform fire phenomenon; 2. The zinc element can be evenly distributed in the alloy melt, reducing the macro segregation of the ingot degree.

Embodiment 3

[0042] Such as image 3 As shown, the electromagnetic generator includes a first electromagnetic generator 21 and a second electromagnetic generator 22. The first electromagnetic generator 21 is installed at the bottom of the melting furnace 1, and the second electromagnetic generator 22 is installed at the side of the melting furnace 1. The magnetic induction of the electromagnetic generator 21 and the second electromagnetic generator 22 is coupled to each other, so that the flow of the alloy melt can flow in the vertical direction and the horizontal direction. Compared with the first embodiment and the second embodiment, the alloy melt in this embodiment The flow in the vertical direction and the horizontal direction has the following benefits: 1, heat transfer can occur between the low temperature alloy melt and the high temperature alloy melt in the smelting furnace 1, and the low temperature of the central part in the smelting furnace 1 Heat transfer occurs between the al...

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Abstract

The invention discloses a brass alloy smelting device and a brass alloy smelting method. The technical problem of poor quality of brass alloy cast ingots produced by adopting a brass alloy smelting device and a brass alloy smelting method in the prior art is solved. The brass alloy smelting device comprises a smelting furnace and an electromagnetic generator installed on the smelting furnace, wherein the electromagnetic generator is used for exerting electromagnetic disturbance on the smelting furnace, and an alloy melt in the smelting furnace is forced to produce convection under the effect of the electromagnetic disturbance. The brass alloy smelting method comprises the steps of firstly calculating the weights of brass alloy returns, pure copper and pure zinc required during brass alloy smelting, then adding the brass alloy returns, the pure copper and a composite covering agent to the smelting furnace to form the alloy melt, heating the alloy melt to be in a molten state, then adding the pure zinc to the smelting furnace for several times, exerting the electromagnetic disturbance on the alloy melt through the electromagnetic generator and finally starting to perform horizontal continuous casting when the temperature in the smelting furnace reaches discharging temperature.

Description

【Technical field】 [0001] The invention relates to the technical field of preparation of metals and alloy materials thereof, in particular to a brass alloy smelting device and a brass alloy smelting method. 【Background technique】 [0002] Brass alloy is an alloy composed of copper and zinc. According to the different proportion of copper in the alloy, brass alloy is divided into H62, H65, H68, H70, H85, H90 and other brands of brass alloys. Copper alloys have good mechanical properties, process properties and corrosion resistance, and some brass alloys also have high electrical conductivity, cutting performance and wear resistance, so brass alloys are the most widely used materials among copper alloys. [0003] The brass alloy smelting process is a key link that determines the distribution of alloying elements, gas content, slag inclusion volume fraction and even the final mechanical properties. The precise control of the furnace temperature and the uniform temperature field ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C9/00
CPCC22C1/02C22C9/00
Inventor 赵学龙李廷举朱张泉王同敏蒋利荣曹志强王云龙接金川魏连秋
Owner ZHEJIANG HAILIANG
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