Single Chamber Industrial Sintering Furnace Temperature Control
Mode 3 Zone
Description:
The high vacuum furnace is single-chamber, horizontal and periodic
heating. It adopt low voltage and large current graphite heating
element to heating, and it has multiple heating units, each unit
controls the temperature separately. The whole process is
automatically controlled, monitored, tracked and displayed and
recorded by the computer.
It including control system, heating system, vacuum system, cooling
water system, rapid cooling system, auxiliary system and safety
system.
It adopt the structure of built-in graphite liner in insulation
tube. In general, it meets the strict requirements of temperature
uniformity and atmosphere uniformity in the sintering process of
high-performance materials. The furnace structure design is
advanced and reasonable, and it is easy to use and maintain.
Technical parameters:
Specifications | RDE-GWL-5518 |
Effective space(w* h * l)mm | 500*500*1800 |
Max.Temperature | 1800℃ |
| Maximum load | 1500Kg |
Vacuum leakage rate:(Average in cold,empty,dry chamber in 3 hours) | 3Pa/h |
| Extreme vacuum | 3×10-3Pa |
MAX working pressure | 100KPa |
Cooling period(Sintering temperature—100℃) | 480min |
Temperature control mode | 3-zone |
Functions: | vacuum heating,heating flowing gas,Rapid cooling. |
Applications: For Non-metal ceramic, Precision Ceramic, Life ceramics,
Industrial ceramics, Sic carbide
Vacuum pump: backing pump, Roots-type pump(slide valve pump, rotary vane pump,
screw pump and so on can be selected for the backing pump, allowing
customers to choose world-class brand products)
Power supply: General standard is three phase five wire system AC380V±10% 50HZ.
Control power supply:Single-phase AC210V-250V 50HZ design(Different
countries and regions can be designed according to local grid
standards)
Temperature measurement mode: WRe5-26 thermocouple
Silicon carbide ceramics sintering process
Silicon carbide ceramic is a new and with good performance of the
friction material.It has the quality of light weight,high heat
intensity and strong resistance to radiation; and has property of
high self-lubricating low friction coefficient, high hardness, wear
resistance,good pair performance,high chemical stability, corrosion
resistance,good thermal conductivity,high heat resistance Impact
and so on.Since 1980s, the major domestic and foreign mechanical
sealing companies use the silicon carbide as a new generation of
high pv friction pairs of materials and mechanical sealing
material.
According to the different manufacturing process, the performance
of silicon carbide products are also different.Based on the
manufacturing method , it is mainly named reaction sintering SiC,
atmospheric sintering SiC,
hot pressing sintering SiC and so on.
The
reaction sintered SiC is composed of α-SiC powder, graphite powder, flux and binder.
After mixing them and forming,then it is placed in a crucible
filled with silica fume. Put the crucible in the vacuum and heat it
to 1600-1800 ℃.The silicon reacts with the carbon in the crucible
to form β-SiC, forming a dense sintered body consisting of α-SiC,
β-SiC and free silicon (10 to 20%). Due to the presence of free
free silicon, the corrosion resistance of the reactive sintered SiC
is reduced and got corrosion in the strong and strong oxidizing
media.
The advantage of reaction sintered SiC is that the end product is
with small shrinkage and good thermal shock resistance, which is
suitable for mass production with low investment. For the end
product , it has better effect that used in the mortar pump and
slurry pump.
