A device and process method for spheroidizing molten iron by pressing method

Abstract

The invention discloses a device and a process method for press-injection spheroidizing molten iron, wherein the device comprises a dip rod assembly, and the dip rod assembly comprises a core rod, a dip cage fixedly connected to the lower end of the core rod, and a dip cage fixedly connected to the core rod The upper end of the sleeve, the lower end of the immersion cage is open and has a built-in nodularizing agent; the device also includes a dipping rod assembly, a lifting mechanism and a rotating mechanism, and the process method includes the following steps: (1) The lifting mechanism drives the dipping cage of the dipping rod assembly to quickly Press into the molten iron ladle at a spheroidizing station for spheroidizing treatment; (2) After the spheroidizing treatment is completed, the lifting mechanism drives the dip rod assembly to lift the molten iron ladle away from the spheroidizing position; (3) The rotating mechanism drives the dip rod assembly and The lifting mechanism rotates to the next spheroidizing position; this cycle is repeated to realize the spheroidizing treatment of multiple spheroidizing positions; the technical scheme provided by the present invention realizes the automatic operation control of the spheroidizing treatment of multiple spheroidizing positions, and the spheroidizing speed Fast and efficient, high magnesium absorption rate.

Description

technical field [0001] The invention relates to the technical field of spheroidizing molten iron in metallurgy and foundry industries, in particular to a device and a process method for spheroidizing molten iron by pressing. Background technique [0002] Spheroidizing treatment is a process of obtaining nodular graphite by treating cast iron liquid, so as to obtain nodular cast iron with better mechanical properties. At present, there are mainly four methods for the existing spheroidizing process, one is the flushing method, and the magnesium alloy or other rare earth alloy spheroidizing agent is placed at the bottom of the spheroidizing bag, and then the molten iron is used for spheroidizing treatment. It has high consumption and low controllability; the second method is the wire feeding method, which wraps the magnesium alloy nodulizer into a wire shape and adds it into molten iron with wire feeding equipment, which has high consumption, low purity of molten iron, and low ...

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Problems solved by technology

[0003] The purpose of the present invention is to propose a immersion rod assembly, device and process method for spheroidizing molten iron by pressing, aiming to solve the problems of high equipment failure rate, short service life and high production cost of the existing molten iron spheroidizing treatment device and process method. High, complex process operation, low degree of automation, high risk factor, high consumption of nodulizers, and low absorption rate

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