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Automatic melting speed control system of vacuum arc remelting furnace

A vacuum self-consumption arc and automatic control system technology, applied in the field of electric arc furnace metallurgy industry, can solve the problems of low control precision, low first-time yield, high energy consumption, etc., achieve accurate calculation, convenient installation and layout, and low input cost Effect

Inactive Publication Date: 2015-03-25
XIAN KUOLI MACHANICAL & ELECTRICAL TECH
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an automatic control system for melting speed of vacuum consumable electric arc furnace in view of the deficiencies in the above-mentioned prior art, which has simple structure, convenient installation and layout, low investment cost, and can accurately control electrode melting Speed, which solves the problems of low control precision, low one-time yield and high energy consumption of the existing vacuum consumable electric arc furnace control system

Method used

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  • Automatic melting speed control system of vacuum arc remelting furnace

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Embodiment Construction

[0025] Such as figure 1 As shown, the present invention includes a controller 1, a melting speed measurement system, a power detection unit, an electrode lifting control unit, an arc current adjustment unit, an HMI connected to the controller 1 and used for inputting melting speed curves and current and voltage parameters A machine interface 17 and an alarm unit 18 connected with the controller 1; the melting rate measurement system includes a load cell 2 installed on the electrode rod load-bearing mechanism and used for real-time measurement of the current remaining electrode weight, and a load cell 2 corresponding to the load cell 2 Connected to a signal correction circuit 3 for correcting weighing data, a filter circuit 4 connected to the signal correction circuit 3, and a signal conversion circuit 5 for converting the current remaining electrode weight signal into an electrode melting speed signal; The power detection unit includes a voltage detection unit 8 and a current ...

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Abstract

The invention discloses an automatic melting speed control system of a vacuum arc remelting furnace. The automatic melting speed control system comprises a controller, a melting speed measuring system, a power detection unit, an electrode lifting control unit, an arc current regulation unit, an HMI (human machine interface) and an alarm unit connected with the controller, and the HMI is connected with the controller and used for inputting a melting speed curve and current and voltage parameters. The automatic melting speed control system is simple in structure, convenient to install and lay and low in input cost, the melting speed is directly taken as a fixed variable to participate in control of the system, conditions are created for smooth regulation of the system, the electrode melting rate can be controlled accurately in operation, internal segregation of ingots is reduced, first pass yield is increased, and energy consumption is lowered.

Description

technical field [0001] The invention relates to the field of electric arc furnace metallurgy industry, in particular to an automatic control system for melting speed of a vacuum consumable electric arc furnace. Background technique [0002] In the vacuum consumable arc melting control, the combustion control of the arc, that is, the control of the melting speed of the consumable electrode is an important link in the melting process and the key to improving the quality of the ingot. A reasonable melting speed can reduce or even eliminate the internal segregation of the ingot, improve the yield of a finished product, greatly reduce energy consumption and save materials. Therefore, accurate control of the electrode melting rate is of great significance to ensure the quality of the ingot, save energy, safe production and improve the production efficiency of the electric arc furnace. [0003] The consumable electrode melting velocity object has the characteristics of strong coup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D23/10
CPCB22D23/10
Inventor 周晓丽
Owner XIAN KUOLI MACHANICAL & ELECTRICAL TECH
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