Hot Air Drying Oven

Description

Climatest Symor® hot air drying ovens are available in different sizes to accommodate various materials, and they may also include additional features such as timers to alert the operator when the drying process is finished. In some cases, the ovens may also be equipped with additional air filtration systems to prevent contamination of the materials during the drying process.

Specification

Working principle

Hot air drying oven adopts hot air circulation, also called forced air convection system. The oven is designed in a way that ensures the hot air is evenly distributed throughout the chamber.

When the oven is turned on, a heating element, begins to heat up. As the element gets hotter, it heats up the air inside the oven. This hot air then rises and circulates throughout the chamber, drying the samples or specimens placed inside.

The oven also has fans or blowers that help circulate the air more quickly and evenly, which ensures that the samples are dried uniformly. A temperature controller is used to regulate the temperature inside the oven and prevent overheating.

The hot air drying oven has a timer that allows the user to set the drying time required for the particular samples or specimens. Once the set time has elapsed, the oven turns off automatically.

Overall, the hot air drying oven is a simple but effective instrument to dry various materials in laboratories and industries.

Structure

A hot air drying oven, also known as an air forced convection oven, is a type of oven that uses a fan to circulate hot air inside the oven. The structure of a hot air oven typically consists of the following parts:

Exterior oven: The body of a hot air oven is usually made of cold rolled steel plates for durability and easy maintenance.

Interior oven: The inner oven is the space to place samples. It is also made of stainless steel SUS304, and it is designed to evenly distribute the heated air throughout the chamber.

Heating Element: The heating element is responsible for generating heat inside the oven.

Fan: The fan circulates hot air throughout the oven to ensure even hot air distribution.

Control Panel: The control panel contains temperaturec controller that allow you to adjust the temperature, time, and other settings.

Door: The door is made from tempered glass with a handle that provides easy observation.

Overall, the combination above parts work together to create a uniform and efficient heating in the oven.

Feature

• Precise temperature control by PID digtal display controller, available to 200°C

• Inner oven made of stainless steel sus#304, corrosion resistant

• Uniform and even temperature distribution inside the oven

• Energy efficient, cost saving

• Easy to clean, no dead corners

Application

A hot air drying oven is widely applied in research laboratories to dry and cure samples before analysis, to evaporate moisture from samples, or to heat samples prior to conducting tests or experiments.

Morever, drying oven is also used in industrial settings to dry electronic components (Printed Circuits Boards), and cure coatings, adhesives, and other materials, here let’s illustrate how a drying oven is used in SMT industry:

SMD package may get damp due to climate reasons, long-term storage or improper storage, the moisture inside the package will vaporize and expand due to reflow soldering heating, this may cause damages, like wiring disconnection, or reduced reliability, this is called the "popcorn" phenomenon.

In J-STD-033 standard, it suggests SMD packages can be baked at 125 deg C to recover their floor life, the baking time differs as per MSL/package body thickness. The drying oven is the optimal choice, it provides different temperature baking from 50 deg C to 125 deg C, and effectively expel moisture from MSD packages, this greatly helps manufacturers to improve production efficiency, and avoid the huge loss of products recall due to substandard quality.

What causes a hot air drying oven overheat?

There are several reasons why an oven may overheat, including:

•Malfunctioning thermostat: The thermostat is responsible for regulating the oven temperature. If it's faulty, it may not accurately read the temperature, resulting in the oven heating up beyond the set temperature.

•Broken heating element: The heating element provides the heat needed for cooking or baking. If it's broken, it may continue to generate heat even when the oven is turned off, causing it to overheat.

•Blocked air vents: The air vents are necessary for proper air circulation in the oven. If they're blocked, the heat will remain trapped inside, causing the oven to overheat.

•Damaged door gasket: The door gasket seals the oven door tightly and prevents heat from escaping. If it's damaged, heat may leak out, causing the oven to overheat.

Overall, it's important to regularly maintain your oven and address any issues as soon as they arise to prevent overheating and to ensure safe operation.

Frequently asked questions

Q: What is a hot air drying oven used for?

A: A hot air drying oven is used to dry or sterilize items through circulating hot air. They are commonly used in industries such as pharmaceuticals, electronics, and research laboratories.

Q: How does a hot air drying oven work?

A: The hot air drying oven works by circulating heated air to remove moisture from the items placed inside the oven. A fan inside the oven blows air over the heating element, which heats the air. The heated air then circulates around the oven's interior, removing moisture from the items inside.

Q: What is forbidded to be placed in a hot air drying oven?

A: Inflammable, explosive or volatile specimen, corrosive & biological specimen, radioactive and toxic specimen, powder materials can’t be exposed in the oven, due to air circulation.