Constant fluid level control device of fused mass box for casting

A control device and constant liquid level technology, applied in foundry equipment, manufacturing tools, equipment for supplying molten metal, etc., can solve the problems of melt oxidation and low quality of cast products, and achieve melt backflow inhibition, casting quality improvement, Avoiding the effect of melt oxidation

Inactive Publication Date: 2008-09-03
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a constant liquid level control device for the melt tank for casting, so as to overcome the defects of melt oxidation and low-quality casting products in the prior art caused by melt reflux

Method used

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  • Constant fluid level control device of fused mass box for casting
  • Constant fluid level control device of fused mass box for casting

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] like figure 1 and figure 2 As shown, for a lead-calcium alloy automatic casting system, a floating ball mechanism is set in the melt tank 1, and the pull-wire displacement sensor 3 installed above the cover plate of the melt tank (the rated displacement stroke of the pull-wire displacement sensor selected here is : 40mm) of the stay wire is connected to one end of the float pull rod 4, thereby detecting the change of the upper and lower positions of the float 5 (ie, the change of the liquid level), and the displacement signal detected by the pull wire displacement sensor 3 is transmitted to the frequency conversion control with PID adjustment device, namely figure 2 In the PID frequency conversion controller, the signal of the pull-wire displacement sensor 3 is the feedback signal (0~10V voltage signal, which essentially reflects the...

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PUM

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Abstract

The invention discloses a melt box constant liquid level control device for casting, which comprises a melt box, a liquid replenishing pipe, and a melt pump motor. The melt box constant liquid level control device is characterized in that the device also includes a liquid level detection mechanism and an inverter controller arranged on the melt box; the liquid level detection mechanism is connected with the inverter controller; the inverter controller is used for controlling the melt pump motor; and the melt pump motor communicats with the melt box through the liquid replenishing pipe. The liquid level detection mechanism comprises a floating ball, a draw bar of the floating ball, and a displacement sensor with pulling thread arranged on the melt box. The melt box constant liquid level control device overcomes the disadvantage of melt reflow in the casting process in prior art, thus suppressing oxidization of melt, achieving dynamic constant of the liquid level of melt, improving the casting quality, improving yield, and achieving good energy conservation effect.

Description

technical field [0001] The invention belongs to the field of electromechanical integration and relates to a constant liquid level control device for a melt tank for casting. Background technique [0002] At present, the working process of the casting system supporting the metal continuous casting machine is: the melt pump continuously extracts the metal melt from the furnace (or pot) into the melt tank of the casting system, and the casting system regularly pours the melt into the continuous In the running mold, because there is no input flow control, the melt pumped into the melt tank is always more than the melt poured out. Therefore, it is necessary to open a hole on the upper side of the melt tank and connect a return pipe. Reflowing excess melt into the furnace (or melting pot) has the following defects in the method of uncontrolled input melt flow and adopting melt reflow: a. Melt reflow leads to intensified oxidation of the metal, which often causes damage to the allo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D39/02
Inventor 严宏志廖平张华顾俊
Owner CENT SOUTH UNIV
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