Vacuum continuous casting machine

1、 Equipment Introduction

Vacuum continuous casting machineIt refers to the modern equipment that uses the principle of medium frequency induction heating to melt metal under vacuum or inert atmosphere conditions, and uses a set of ingot casting mechanism to cast the molten metal into bars or plates of the required specifications through a crystallizer.

IIVacuum continuous casting machineMain technical parameters

① Intermediate frequency induction power supply power: 45KW;

② Total power supply voltage: three-phase AC380V, 50/60Hz;

③ Cold state ultimate vacuum of an empty furnace:;

④ Maximum temperature: 1500 ℃;

⑤ Temperature control method: PID automatic temperature control or manual power adjustment;

⑥ Working pressure: ≤ 0.11MPa, micro positive pressure working pressure ≤ 0.05MPa;

⑦ Crucible capacity: ≥ 30kg (based on copper);

⑧ Finished product specifications: 8mm diameter rod, 10x65mm plate;

⑨ Static vacuum after loading:;

⑩ Casting speed: 0~15cm/min (driven by servo motor, continuously adjustable)

IIIMechanical and electrical structures

This equipment mainly consists of a furnace body, induction heating device, crystallizer device, lead out device, ramming device, secondary feeding device, furnace cover lifting and rotating device, winding device, vacuum system, water cooling system, control system, and frame.

1. Furnace body

It consists of a melting chamber, a leakage and observation chamber, a furnace cover, a furnace bottom, and two furnace doors. The two chambers, furnace cover, furnace door, and furnace bottom all adopt a double-layer water-cooled structure. The jacket formed between the two layers can be cooled with water to remove heat, so that the surface temperature does not exceed 40 ℃; The furnace cover is equipped with pressure gauge interface KF16, observation port KF50, tamping device interface, secondary feeding interface KF25, and window blocking device interface; The melting chamber is equipped with a lighting window, an induction power inlet interface, an ISO200 vacuum extraction interface, a KF16 filling and discharging interface, an ISO160 water-cooled copper sleeve inlet and outlet interface, and a vacuum electrode interface (thermocouple lead out).

2. Induction heating device

It consists of a rectangular coil, an inlet device, a water cable, and a 45KW intermediate frequency power supply.

3. Crystallizer device

It is composed of graphite crucible (rod and plate specifications), fused silica jacket, graphite crystallizer (two specifications), fused silica support plate (two specifications), movable water-cooled copper sleeve (two specifications), graphite lead rod and lead plate, two B-type thermocouples, etc.

4. Lead out device

The left two rubber rollers are driven to rotate by a 1.5KW (reduction ratio 125) servo motor through a synchronous pulley, which has the functions of pulling, stopping, and reverse pushing and can be programmed. The well shaped guide device below is used to prevent the rod/plate from moving around during winding.