Muffles are versatile units capable of incinerating materials and melting metals, through thermal energy. They are used within laboratories, for the calcination of substances, drying of samples, control processes, heat treatments, hardening and cleaning of injection molds.
It is characterized by being a closed chamber made with refractory materials, suitable for supplying high temperatures and meeting the demanding technical requirements within the laboratories. In addition, it has different types for various purposes.
Types of Muffles
- The muffles are used to obtain temperatures higher than 200 ° C, and only refractory laboratory materials can be used, such as a high quality porcelain, quartz or stainless crucible, due to the high temperatures that it can reach (1200 ° C), and the conditions of the atmosphere that it can generate in the process.
- You can point out the different types, which are:
- Academic Muffles: They are used in the academic field, for their low cost without reducing the quality of the equipment, these are formed with a small insulating amount, since their use is contemplated in a smaller number of hours of continuous work, so the loss of heat, is not such a frequent problem.
- Laboratory Muffles: they are units that are used for processes within the laboratories, has thermal insulation, prevents leaks and heat propagation within the work area.
- Muffle for Heat Treatment (Tempering): it is designed for the tempering of metals, with highly efficient temperature registers, allowing to reach the desired temperature and have a minimum temperature overpass.
- Controlled atmosphere muffle: it is made to operate with noble gases or different types of generating environments, creating controlled work situations, for different tempering processes.
- High Temperature Muffle: outlined to bring a process to a hotter point, these devices can reach 1700°C.
- Muffles with ramp control: it is of advanced technology, as is its touch screen and its different programs, which can be programmed for each process.
- GAS Muffle: it is ideal for simple melting process, as it has low temperature pressure.
Characteristics and Functions of the Muffles
They are units made of resistant materials to withstand high temperatures, which, inside have cooking mechanisms, in addition, it has a small observation space suitable for the cooking chamber, and introduce probes to verify and record temperatures. Also, on the roof of the unit, there is a space through which gases are expelled. In addition, its walls are manufactured with thermal and insulating materials.
Within their functions, they are capable of reaching temperatures greater than 350°C, suitable for introducing special materials.
In this sense, the muffles allow to monitor and establish conditions of the samples at high temperatures, safely, it consists of certain characteristics, such as internal chamber, made of aluminum and quartz to resist high temperatures. It also has heating elements and works to distribute the temperature homogeneously. It also has a Thermocouple, which indicates the temperature at which the chamber is located.
In the same way, it has an operation time program of the equipment, timer type. And even, the temperature control is usually of PID type to avoid temperature peaks, the controls are analog and have a wider margin of error and finally, the safety switch, is located in the door that gives access to the unit; it works by cutting off the power supply so that the temperature decreases.
Muflas Kalstein brand
We at Kalstein are able to meet the demands of our users when it comes to the selection of laboratory equipment. We offer you, the Universal High Temperature Box Muffles, YR series, which has attractive characteristics, such as: High purity fibrous alumina insulation for maximum energy savings; double-layer steel structure with air cooling fan to keep the outside of the oven safe to the touch; reaches temperatures of 1200 ° C, 1400°C, 1700°C maximum operation; control power with 30 programmable segments, among others.
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