Internal heat type resistance heating vacuum sintering furnace

Internal heat type resistance heating vacuum sintering furnace

The vacuum sintering furnace is an internal heat type resistance heating vacuum furnace, which is composed of a furnace body, a heating chamber, a vacuum unit, a cooling water system, a charging and discharging system, and an electric control system.

Features

Double-layer water-cooled structure, made of 304 stainless steel, internally polished according to high vacuum requirements, externally polished and sandblasted;

Detailde


Features :
The vacuum sintering furnace is an internal heat type resistance heating vacuum furnace, which is composed of a furnace body, a heating chamber, a vacuum unit, a cooling water system, a charging and discharging system, and an electric control system.


First, the vacuum sintering furnace body:

a)      Double-layer water-cooled structure, made of 304 stainless steel, internally polished according to high vacuum requirements, externally polished and sandblasted;
b)     Vertical structure, the furnace body is cylindrical, the lower part is the head, and the upper part is the vacuum flange. The furnace door is located above the furnace body, and is flanged to the furnace body, the sealing structure is in the form of a flange, the high temperature resistant fluoro rubber lip ring is sealed, and the hand wheel bolt is locked;
c)      The vacuum port is located at the upper part of the furnace body, and is connected with the vacuum flange of the vacuum unit, and the high temperature resistant fluorine rubber O-ring is sealed;
d)     The electrode introduction device is located at the lower portion of the furnace body in a total of three groups. The material is copper. In-furnace and outside the furnace are insulated with corundum tubes and sealed. Flange connection with the furnace body, O-ring;
e)      The furnace body is provided with a charging and discharging device, the inflating port is located below the furnace body, and the air discharging port is located above the furnace body;
f)       The furnace body is provided with a temperature control port, and the tungsten germanium thermocouple measures the temperature; and an electrode introduction device is provided for the temperature uniformity measurement at 1100 ° C.

Second, the vacuum sintering furnace heating chamber :

a)      Used for vacuum or protective atmosphere.
b)     The heating element is a high-strength graphite heater (using the East China Sea carbon graphite, the graphite has stable resistivity, low ash content and uniform thermal conductivity) , and it is circularly symmetrically distributed outside the uniform temperature zone, and the three-zone heating method ensures the most Excellent temperature uniformity and uniform heating of the workpiece.
c)      Insulation material is imported from the United States. Hard insulation material is an important part of vacuum furnace. The insulation materials of our equipment are made of hard carbon felt imported from the United States. The products have excellent thermal insulation properties, low ash and high carbonization temperature. , low bulk density, small coefficient of thermal expansion, etc., is a high-performance thermal insulation material necessary for high-temperature vacuum furnaces) and mullite insulation felt reflective screen;
d)     The heating element is easy to replace. The entire heating zone can be removed as a structurally complete part for easy maintenance and repair. The loading station is mounted on the base of the furnace and is composed of a material that is resistant to high temperatures.

Third, the vacuum sintering furnace vacuum system :

a)      Adopt KT-250 diffusion pump/ZJP-150 Roots pump/2X-30 rotary vane pump three-stage high vacuum unit, add filter before the unit to extend the service life of vacuum pump;
b)     Vacuum valve, electromagnetic bleed valve, pipeline, bellows, etc.; the leak detection port and vacuum gauge interface are left on the pipeline;

Fourth, the cooling water system :

According to the requirements of the cooling water in each part of the vacuum furnace, the water collecting row is made up of valves, pipelines, etc.; the furnace body, the furnace door, the sealing ring, the vacuum pump and the water-cooled electrode are cooled. The water inlet sensor is installed in the total inlet pipe to ensure the safety of the equipment.

Fifth. Charging and discharging system :

It consists of a solenoid valve, a trim valve and a pipeline. Different inflation pressure ranges can be set, and the pressure switch can automatically inflate and liquefy.

Sixth, electronic control system :

a)      Using OMRON programmable controller PLC , portable notebook computer, self-developed configuration software , automatic control, data acquisition, digital display and storage recordaccording to the process requirements . Changes in parameters such as temperature, vacuum, and pressure can be recorded and displayed . The stored data can be queried, copied, and connected to the printer (user-supplied) to print out the historical history record.
b)     Japan Island Electric Company FP93 digital display temperature control meter, used to intelligently control and display the heating process, so that the heating process is carried out step by step according to the process requirements; the temperature measurement uses tungsten-rhodium thermocouple;
c)      Heating power supply: three-phase, thyristor thyristor power supply;
d)     Composite digital vacuum gauge, thermocouple under low vacuum, ionization gauge under high vacuum;
e)      All instruments and control components are concentrated in a special electrical control cabinet;
f)       Set the necessary alarms and protections, such as over temperature, low water pressure, low air pressure, etc.

Seventh, work platform :

An operating platform is made of steel and connecting parts, and stainless steel plates are laid on the upper part. The vacuum unit and the transformer are placed in the lower part, the water-cooled interface, the electrode is introduced into the copper row, and the vacuum furnace body and the control panel are placed on the upper part.
 

intersting Products:*
Name:*
Company:
Email:*
Tel/Mobile:
Tell us your needs (as specific as possible)