| Items |
Parameter |
| Temperature |
1000 ℃ |
| Model |
GWL-1000VSF |
| Furnace size (mm) |
Depth×width×height: 600×600×900 |
| power |
45KW |
| VoltageAC |
380V |
| Maximum power |
The design power is 75KW, and the actual power used is within about 85%. The power can be automatically adjusted according to different heating processes. |
| Temperature control accuracy |
±1 ℃ (Integrated circuit control, no overshoot) |
| The control range is |
50 to 1000 degrees |
| Temperature field uniformity in the furnace |
±5 ℃ |
| Temperature measuring element and temperature measuring range |
Thermocouple K type, temperature measurement range 0-1320 degrees |
| Heating rate |
The heating rate can be adjusted freely, and the adjustment range is: the fastest heating rate is 15 degrees per minute (15 degrees/min), and the slowest heating rate is 1 degree per hour (1 degree/h). |
| Heating element |
Beijing Shougang HRE high temperature alloy resistance wire (containing molybdenum ) is used and wound into a spiral spring shape |
| Heating element installation location |
It is evenly distributed around the inside of the furnace + at the bottom, and uses five-sided heating. The heating body generates heat evenly, and the temperature field in the furnace is uniform and the effect is good. |
| Furnace body |
The furnace body is processed by CNC machine tools, and is made by polishing, grinding, pickling, phosphating, spraying plastic powder, high-temperature baking, etc. It has two-color matching, a novel and beautiful appearance, and has anti-oxidation, acid and alkali resistance, corrosion resistance, and corrosion resistance. High temperature, easy to clean and other advantages |
| Furnace structure |
The electric furnace body adopts the internationally advanced air-cooled double-layer furnace structure. The effective air-cooling guide partition circulates cold air throughout the furnace shell, and finally cools the conductive sheets of the heating element and then discharges the furnace body, avoiding high-temperature oxidation of the conductive sheets of the heating element. ; Ensure a good working environment |
| Observation window |
The furnace door is equipped with an observation window |
| Furnace door opening method |
The furnace door opening method is side door opening. |
| Furnace door locked |
Use pneumatic locking furnace door |
| Furnace shell temperature |
for long-term use , and the outer shell temperature is less than 45 degrees. |
| Hot air stirring |
The function of hot air stirring: There is an air leaf on the top of the furnace. Through the rotation of the air leaf , the temperature of the space inside the furnace is evenly distributed, so as to achieve the purpose of uniform temperature in the furnace. |
| Mixing blade |
310S stainless steel, operating temperature below 1050 degrees |
| Stirring motor and speed |
The mixing motor is water-cooled, and the speed is infinitely adjusted through a frequency converter. Power 3KW |
| Forced cooling system |
The furnace is equipped with a stainless steel cooling coil, which can be filled with circulating cold zone water to accelerate heat dissipation in the furnace, increase the cooling speed, and improve the working efficiency of the equipment. The circulating cold water system adopts a closed circulation system, which is composed of a closed water cooler, control valves and stainless steel pipes, which can effectively improve equipment utilization. The cooling speed can be guaranteed to be ≮ 35 ℃ /h, which can meet the demand of opening the furnace door when the furnace temperature drops to 70 ℃ within 10 hours . |
| Refrigerator |
3P |
| Vacuum pump |
Adopt two-stage rotary vane vacuum pump 70L/s |
| Vacuum degree |
-0.1Mpa. |
| Pressure resistant |
The steel plate of the electric furnace furnace is 6-20mm thick, double-sided welded, and can withstand positive pressure of 0.1Mpa. |
| Air valve |
Imported stainless steel valves |
| Pressure detection |
A positive pressure and negative pressure double indicator pointer pressure gauge
A positive pressure and negative pressure dual indication digital pressure gauge |
| Barometer |
Two float flow meters |
| air intake |
2 |
| exhaust vent |
1 |
| Seals |
The seal is made of high temperature resistant silicone rubber ring (temperature resistant 260 degrees-350 degrees) |
| pressure protection |
In order to prevent the furnace exhaust port from being closed, the exhaust port is blocked, and the furnace pressure is too high, this system is specially designed. The principle is: the electric contact pressure gauge or pressure sensor obtains the signal, drives the control module to close the electromagnetic air inlet valve, and starts the electromagnetic exhaust valve. The air valve and alarm release the pressure from the exhaust port, and the sound and light alarm buzzer sounds the alarm. To protect the normal operation of the electric furnace |
| accessible atmosphere |
Hydrogen, nitrogen, argon, carbon monoxide, oxygen, etc. |
| Refractory materials |
The furnace lining is made of vacuum-formed high-purity alumina poly-light materials. Lightweight hollow spherical alumina plates are used for easy-to-touch material handling and load-bearing locations (furnace mouth and furnace bottom). It has high operating temperature, low heat storage, and is resistant to rapid heat and rapid cooling. , no cracks, no slag, good thermal insulation performance (the energy saving effect is more than 80% of the old electric furnace) |
| Insulation Materials |
It adopts three layers of insulation, namely: aluminum silicate fiber board, alumina fiber board, and alumina (polycrystalline) fiber board. The energy saving effect is more than 80% of that of the old electric furnace. |
| Protect |
Using an integrated modular control unit, the control accuracy is accurate, and dual-loop control and dual-loop protection are designed, with overshoot, overshoot, undershoot, segment coupling, phase loss, overvoltage, overcurrent, overtemperature, and current feedback , soft start and other protection |
| control |
Adopting closed-loop technology thyristor module trigger control, phase-shift trigger control method, the output voltage, current or power is continuously adjustable, with the characteristics of constant voltage, constant current or constant power; the current loop is the inner loop and the voltage loop is the outer loop. When a load is suddenly added or the load current exceeds the current limit value, the output current of the voltage regulator is limited to the rated current range to ensure the normal operation of the output and voltage regulator; at the same time, the voltage loop also participates in the adjustment, so that the output current of the voltage regulator is It is limited to the rated current range and maintains constant output current and voltage with sufficient adjustment margin; thereby protecting the heating element from the impact of excessive current and voltage, and achieving safe and reliable control effect and control accuracy. |
| Display parameters |
Temperature, temperature segment number, period of time, remaining time, output power percentage, voltage, current, etc. |
| button |
The imported buttons have a service life of more than 100,000 times and are equipped with LED indicators. |
| Temperature curve setting |
Using 7-inch touch screen paperless recorder |
| temperature control |
Adopt intelligent temperature controller |
| Multiple curve input |
30-segment program control function, you can input settings: one curve is 30 segments, two curves are 14 segments/strip, three curves are 9 segments/segment, five curves are 5 segments/strip; multiple curves can be input at the same time, and they can be used at will transfer. |
| Communication Interface |
RS485 RS232 USB |
| Alarm and protection |
Install an audible and visual ultra-high temperature alarm and an automatic power-off device when opening the door |
| Automatic fire extinguishing system |
The equipment is equipped with a flame detection alarm and fire extinguishing system. When a fire occurs in the furnace through the remote sensing sensing system, an alarm signal will be sent out to prompt the operator to confirm the fire and whether to turn on the powder fire extinguishing system. Compressed fire extinguishing dry powder can be charged into the furnace. Perform fire extinguishing treatment on the sintered specimens. |
| Warranty scope and period |
The electric stove has a one-year free warranty, but the heating element is not under warranty (it will be replaced free of charge if it is damaged due to natural damage within three months). |
| Random spare parts |
Two heating elements, two sets of rods , a pair of crucible pliers , and a pair of high-temperature gloves |
| Packing List |
One electric furnace, two heating elements, two sets of rods , one crucible pliers , one pair of high-temperature gloves, one instruction manual, one certificate of conformity, one acceptance report (factory inspection report), and one sales delivery note. |
Vacuum Sintering Furnace / Vacuum Atmosphere Sintering Furnace is a specialized piece of equipment used in the manufacturing and processing of materials, particularly in the field of metallurgy and ceramics. This type of furnace is designed to create an environment with controlled atmospheric conditions, typically involving low pressure and specific gas compositions, in order to achieve precise sintering results.
Application :
The carbon-free atmosphere, metal injection molding (MIM), metallization, sintering, Superhard alloy, graphite products, etc.
Standard features
Sintering is a process of compacting and forming a solid mass of material by heat and/or pressure without melting it to the point of liquefaction. This process is commonly used in the production of powdered metal parts, ceramics, and other materials where high strength and precision are required. Vacuum atmosphere sintering furnaces play a crucial role in achieving the desired material properties and final product quality.
The key components of a vacuum atmosphere sintering furnace include a vacuum chamber, heating elements, gas supply systems, temperature control systems, and insulation materials. The vacuum chamber is a sealed enclosure where the sintering process takes place under low-pressure conditions. This helps to prevent oxidation and contamination of the materials being processed, which is essential for achieving high-quality sintered products.
The heating elements are responsible for providing the necessary heat energy to raise the temperature inside the furnace to the levels required for sintering. These elements are carefully designed to ensure uniform heating throughout the sintering chamber, which is essential for achieving consistent results across the entire batch of materials being processed.
Gas supply systems are used to introduce specific gases into the sintering chamber to create the desired atmosphere for the sintering process. Common gases used in vacuum atmosphere sintering include hydrogen, nitrogen, argon, and forming gas (a mixture of hydrogen and nitrogen). The precise control of gas composition and pressure is critical for achieving the desired material properties and for preventing unwanted reactions during the sintering process.
Temperature control systems are essential for maintaining precise temperature profiles throughout the sintering process. These systems typically include thermocouples, temperature controllers, and heating element power modulation to ensure that the materials being processed are subjected to the exact thermal conditions required for successful sintering.
Insulation materials are used to minimize heat loss from the sintering chamber and to provide thermal protection for the surrounding environment. This helps to improve energy efficiency and maintain stable operating conditions inside the furnace.
The operation of a vacuum atmosphere sintering furnace involves several key steps. First, the materials to be sintered are loaded into the furnace chamber, which is then sealed and evacuated to create a low-pressure environment. Once the desired vacuum level is achieved, the heating elements are activated to raise the temperature inside the chamber to the required sintering temperature. At the same time, specific gases are introduced into the chamber to create the desired atmosphere for the sintering process. The temperature and gas composition are carefully controlled throughout the sintering cycle to ensure that the materials undergo the necessary thermal and chemical transformations to achieve the desired properties.
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