laboratory dental porcelain furnace dental zirconia sintering furnace
Our Zirconia Sintering Furnace are the most cost effective high temperature muffle furnace. The furnace consists of high quality alumina fiber brick and MoSi2 heating elements with special design, and furnace temperature is controlled by high precision SCR (Silicon Controlled Rectifier) digital controller with accuracy ±1℃ and 30 segments programmable. It is an ideal tool for materials annealing and sintering in your research laboratory.
1.Muffle Furnace Specification
Product series | QSH-BLF-1700T | QSH-1700M-1515T |
Max temperature | 1700℃ | 1700℃ |
Working temperature | ≤1650℃ | ≤1650℃ |
Heating rate | 0-40℃/min |
Temperature accuracy | ± 1℃ |
Temperature control | 51segments programmable and PID auto control |
Furnace chamber | Alumina Ceramic fiber board |
Furnace structure | Double shell with fan cooling |
Thermocouple | B type | B type |
Heating elements | MoSi2 heater | MoSi2 heater |
Voltage | 110V - 220V 50 / 60Hz |
2. Product’s structure and advantage
1) Chamber:
The fireproof layer consists of lightweight ceramic fiber, the inside heat resistant steel infixed
shape, the outer aluminum silicate fiber insulation layer; fireproof layer and insulating layer of
200 mm, total thickness for electric furnace provides excellent heating preservation effect.
The chamber structure can be resistant to thermal shock; it is suitable for the electric furnace
need high temperature to open the door. Under high temperate condition frequently open the
door, the chamber does not deformation and cracking, the furnace is durable, and there is no
danger of collapse. All fiber chamber greatly reduces the weight of the furnace. Due to the
smaller fiber lining heat storage coefficient of thermal conductivity is only 0.8. Compared with
the traditional refractory furnace, its heating rate faster, energy-saving effect is remarkable
2) Three surface heating, thermal radiation, to form a uniform temperature field in the chamber,
the temperature uniformity of ±5 C. To avoid uneven temperature field caused by annealing
workpiece defects crack, annealing inconsistent
3) Furnace structure:
double shell with fan cooling, built-in fan and air duct, to ensure the furnace structure surface
temperature is lower than 60 degrees.
3. Temperature’s profile for your reference as below.( for example: 6 segments)
4.Heating elements
5. Trouble shooting for typical Problems
Problems | Reason | Solution |
Open Power Lock, no power indication | Fuse (4A) in control panel is broken | Check control panel, and replace fuse |
Green Power indictor is off, but Red open circuit indicator is On | Fuse ( 50A) in main power circuit is broken | Open the cover of front panel and replace the fuse |
No current shows in meter , but has Max. Voltage | Heating element broken | Find broken heating rod, and replace it |
Controller display panel SV shows“ OraL” | Thermal Couples broken | Replace Thermal couples ( B type ) |
Controller display panel SV shows“ HI AL” | Furnace temperature > 1700C, Protection from Alarm | Cool furnace down, and find reason why temperature is so high ( program setting may be wrong) |
Power and heating element are OK, but furnace can’t be controlled by program. | Controller or related circuit may be damaged | Heck controller. |
Program running, but furnace can not be heated, or real temperature is far behind the setting value | oPL or oPH value is too low due to local voltage lower or frenquency different | Incraese “oPL” and “oPH” value till current meter shows “ 120 A – 140A”, and program runs smoothly |
During heating below 300C, the temperature value ( PV) is not stable, and doesn’t match with setting program (SV) | It is normal because the furnace comes with a high temperature thermocouple, which is not sensitive at temperature below 300C | Don’t worry. Let the furnace heat to 300C, then thermocouple will functionstably with program. If the PV valueat 300C is still less than that of SV, youmay need to increase OPL value a little. |
6 .Payment Terms:
We accept Payment: L/C.T T
Price terms: FOB China
7.Transpot way:
By sea, we have good forwarders, super service and price ! Especially, it is free to ship by sea sometimes!
8. Other services:
We can make and design furnaces according to your drawings or requirements.
Our engineers will provide you with the most top quality high temperature laboratory furnaces.
9.Standard or stock size :
chamber size |
150x150x150mm (6"x6"x6") 150x150x200mm (6"x6"x8") 200x200x200mm (8"x8"x8") 200x200x300mm (8"x8"x12") |
Note :
Special furnace size is customizable
Better quality, Better service!
FAQ:
Q1. Are you a manufacturer?
Yes, we are the manufacturer specialize in high temperature furnaces and heating elements.
Q 2.Can do customized?
Yes, we have own R&D department. Our engineer have worked in this field around ten years. We can design the equipment according the customer request.
Q3. How to get a quotation?
You can contact us online or send email directly.
Generally,we need to know the furnace type,the temperature and the working room size you need.If you have no specific idea,let us know your test request.We would try our best to recommend a suitable one to you.
Q4. Do you inspect the finished products?
Yes,each step of production and finished products will be carried out inspection by QC department before shipping.
Q5. what's the minimum order quantity?
We provide the customizing service.In consideration of the limited need of end use,the MOQ is just 1set.