500KG aluminum alloy crucible holding furnace melting furnace electric furnace metal mixer furnace

This equipment It is mainly used for melting or smelting nonferrous metals and alloys with low melting point, such as aluminum, zinc, tin, cadmium and babbitt alloy. It can also As mineral metallurgy sintering and small batch Chemical and physical analysis in laboratory Use.

Manufacturers who have requirements for product quality can also use together with aluminum refining degasser to remove impurities and hydrogen in aluminum liquid, so that the product quality is better.

It can be composed of shoe mold casting platform, gypsum sintering furnace and ceramic mold sintering furnace Complete set of shoe mold casting equipment 。

1、 Equipment name: crucible type aluminum alloy melting and holding furnace

1. Type: crucible type

2. Shape (customizable): square, round, oval.

3. Energy: electric energy

2、 Equipment Introduction

1. Structure: The electric furnace is composed of five parts: furnace shell, furnace lining, electric control system, crucible and resistance wire.

2. Principle: Crucible aluminum alloy melting and holding furnace is a kind of aluminum alloy melting equipment that heats by resistance, heats the crucible evenly by radiation, and then places aluminum ingots or aluminum alloy materials in the crucible for heating, dissolution and heat preservation.

3、 Design requirements

1. Capacity: 500kg (can be customized according to customer needs)

2. Melting rate: 200kg/h

3. Process temperature: 730 ℃ - 780 ℃

4. Used with 550-800T die-casting machine

4、 Structure of crucible type electric melting holding furnace

1. Furnace structure

1) The outer shell of the first furnace shell is made of 4mm steel plate, and the bottom plate is made of 8mm steel plate.

2) The second layer is 200mm thick, ceramic fiber insulation cotton resistant to 1450 ℃ high temperature.

3) The third layer of furnace bottom is bottomed with light insulating bricks ， The furnace wall is built into a round furnace with light high alumina bricks, and the furnace mouth is shrunk with hard high alumina bricks 。

4) The fourth layer of heating elements: temperature resistant high resistance wire, resistance tape (resistance wire replacement is more convenient).

5) The fifth layer is the crucible base, which is padded with straw paper, newspaper, cardboard boxes, etc.

Supplement: press the ceramic fiber felt cover on the edge of the crucible and press the crucible cover plate tightly (the crucible cover plate is 14mm steel plate, cut in the middle to form an "O" shape). Cover the holding furnace during work

Cover (the furnace cover is formed by stamping at one time, and can be raised and lowered by hand 360 ° rotation): the outer layer of the furnace is filled with 6mm steel plate, and the inner layer is filled with 60mm insulating ceramic fiber felt.

2. Temperature measurement:

Temperature measurement of heating element (stainless steel thermocouple, precision ± 1 ℃): furnace temperature thermocouple (outside the crucible), aluminum alloy liquid temperature thermocouple (inside the crucible).

3. Wearing parts:

1） Silicon carbide graphite protective sleeve (sleeve outside the temperature thermocouple to prevent aluminum alloy melting and adding corrosion).

2） Silicon carbide graphite crucible (container for aluminum alloy smelting: standard Vesuvius brand).

5、 Electrical control cabinet

1) Control panel:

A ammeter B current controller (knob manual type)

C Temperature control instrument D button switch

2) Air switch

3) Thyristor module

4) Fuse

5) Intermediate relay (Chint)

6) Three phase metering watt hour meter

7) Composition of circuit breaker and other electrical components

8) Transformer

9) Cooling fan

10) Heat dissipation module

11) Thyristor trigger

6、 Technical Requirements

1. Isostatic pressing graphite crucible is used, with a service life of 6 months and a normal service life of 8-13 months. The crucible has a single tank structure, and the coating agent can be coated on the inner wall of the crucible when it is used for the first time (it plays the role of non sticking aluminum liquid).

2. If the whole machine has problems, it will be repaired free of charge within one year (the crucible is not included, and the crucible is guaranteed for 6 months);

3. The electric furnace can be directly used after it is directly connected to electricity. When the new furnace is used for the first time, it needs to power on the oven first, Bake the crucible after the completion of the oven (the role of baking the crucible at a specific high temperature: the first stage of low-temperature baking is to dry the moisture of the crucible, and the second stage of high-temperature baking is to change the physical properties of the glaze on the surface of the crucible under high temperature, which can better protect the crucible and improve its life). If the furnace is shut down for too long in holidays (especially wet in rainy season), it is also necessary to restart the oven.

4. The electric control system of aluminum alloy melting furnace is equipped with alarm system, over-voltage and over-current protection, leakage protection and liquid leakage protection. When the furnace is abnormal, the alarm system will automatically alarm, and automatically start the safety mode. The furnace will automatically cut off power and stop heating to ensure production safety;

7、 Specification of aluminum melting furnace

Our production specifications are from All 100-1500KG aluminum melting furnaces are available!