Small induction melting furnace

The operating frequency of the small induction melting furnace (4 ~ 8KHz) is higher than the operating frequency of the general induction melting furnace, and has higher thermal efficiency than the ordinary melting furnace.

use:

Suitable for the smelting of precious metals such as gold, platinum, silver and other metals. It is an ideal equipment for university laboratories, research institutes, handicraft processing and precision casting.

First, the application characteristics of small induction melting furnace :

Suitable for small parts, precision castings.

1 , installation and operation is very convenient, that is, learning will be;

2 , ultra-small size, light weight, movable, covering less than 2 square meters;

3 , 24 hours uninterrupted smelting capacity;

4 , high thermal efficiency, energy saving;

5. It is convenient to replace the furnace body with different weight, different materials and different furnace methods to meet various melting requirements.

Small induction melting furnace ,

Second, the characteristics of small high-frequency melting structure :

1. The electric furnace is small in size, light in weight, high in efficiency and low in power consumption;

2 , the temperature around the furnace is low, the smoke is less, and the working environment is good;

3 , the operation process is simple, and the smelting operation is reliable;

4 , uniform heating temperature, less burning, and uniform metal composition;

5 , the casting quality is good, the melting temperature is fast, the furnace temperature is easy to control, and the production efficiency is high;

6. The furnace has high utilization rate and convenient replacement.

7 , according to its characteristics in the industry can be called industrial furnace, electric furnace, high frequency electric furnace

Third, the small induction melting furnace heating method:

There are two types of indirect heating methods.

1, the resistance element powered or combustion products not directly feed the furnace, but the first heating of the radiation heat transfer and other mediators, then again to the heat radiation and convection pass charge;

2 , the coil is connected to the alternating current to generate an alternating magnetic field, and the induction current is used to heat the charge in the magnetic field, and the heating element such as the induction coil is separated from the charge by the lining material. The advantage of the indirect heating method is that the combustion products or the electric heating elements are separated from the charge, and no harmful influence is generated between them, which is advantageous for maintaining and improving the quality of the charge and reducing the burning of the metal. The induction heating method also has a stirring effect on the metal melt, which can accelerate the metal melting process, shorten the melting time, and reduce the metal burning loss. The disadvantage is that the heat cannot be directly transferred to the charge, and the heat efficiency is low compared with the direct heating method, and the furnace structure is complicated.

Fourth, small induction melting furnace selection summary table

Five, small induction melting furnace instructions

1 , precautions before opening the furnace

Small induction melting furnaces must be inspected for electrical equipment, water cooling systems, inductor copper tubes, etc. before opening. Only when these equipments are in good condition can the furnace be opened to ensure the safety of heat treatment, otherwise it is forbidden to open the furnace. ;determining the responsible personnel power transmission and open furnaces, and is responsible for personnel are not allowed to leave their posts, it is necessary for the external situation inductor and crucible supervision during work to prevent people from touching the sensors and cables in the power transmission, affecting IF The normal operation of the electric furnace or a safety accident.

, 2 , precautions after opening the furnace

After the small induction melting furnace is opened, during the charging, the inside of the furnace should be inspected to avoid mixing with flammable and explosive materials. In order to prevent the phenomenon of junction cover is prohibited directly added to molten steel in cold and moist feed material, and after melting was not added to the upper portion is filled bulky blocks; ** To avoid accidents, it is necessary to ensure that the casting space and There is no water in the pit in front of the furnace, and there is no obstacle . In the pouring, two people need to cooperate, and the remaining molten steel can only be dumped at the place where it is made, and it cannot be dumped anywhere.

3 , precautions during maintenance

When maintaining the small induction melting furnace , the internal frequency generator room should be kept clean, and flammable and explosive materials should not be stacked. Repair the furnace with excessive melt loss in time, and avoid the incorporation of iron filings and iron oxide in the furnace to ensure the compaction of the crucible.