![]() Built-in cast iron heating element, durable. This process is called butt fusion.A single heating plate with 1000W power has 5 temperature settings, which means that food can be heated in a few minutes. The plate is removed and the two pipes are pressed together and bonded. The two pipes to be fused are pressed against the plate till the edges are soft. Many of these pipes are over 90-centimeter diameter. Hot plates with two heating surfaces are used to fuse plastic pipes. Hot plates are widely used in the electronics industry as a method of soldering and desoldering components onto circuit boards. Such hot plates are usually referred to as corrosion-resistant hot plates. Hot plates using special material and protective coatings are used in mining and related industries to heat samples of toxic chemicals. These plates are widely used in the process of manufacturing semiconductors. These plates are used to heat thin sheets evenly by drawing the sheets firmly on the plate with a vacuum. Industrial hot plates which incorporate a porous heated plate are referred to as heated chucks. Most industrial hot plates will withstand loads more than 150 pounds. Typical operating temperatures vary from 100 to 750 ☌ and power requirements are usually in the 120 to 480 volt range. These hot plates vary in size from 2 to over 300 square centimetres. Hot plates are widely used for many industrial applications. ( September 2013) ( Learn how and when to remove this template message) Statements consisting only of original research should be removed. Please improve it by verifying the claims made and adding inline citations. This section possibly contains original research. Both these methods are useful in a student laboratory as they are cheaper, effective, safe, and the user does not have to wait for a bath to cool down after use. This method is for glassware to be heated at higher temperatures because the flask is warmed indirectly by the hot air collecting under the skirt and unlike simply suspending the glassware, this method is better protected from drafts. The skirt should start at the neck of the flask and drape down to the surface of the plate, not touching the sides of the flask, but covering the majority of the plates surface. Another method, called a teepee setup because it looks a little like a tipi, is to suspend glassware above a plate and surround the flask by a skirt of tinfoil. This works well for low boiling point operations or when a heat source's minimum temperature is high. This not only reduces the temperature of the glass, but it slows down the rate of heat exchange and encourages even heating. One method is to suspend glassware slightly above the surface of the plate with no direct contact. Two alternative methods for heating glassware using a hotplate are available. In a student laboratory, hot plates are used because baths can be hazards if they spill, overheat or ignite because they have high thermal inertia (meaning they take a long time to cool down) and mantles can be very expensive and are designed for specific flask volumes. Some hot plates also contain an integrated magnetic stirrer, allowing the heated liquid to be stirred automatically. ![]() In laboratory settings, hot plates are generally used to heat glassware or its contents. In scientific research This laboratory hot plate with magnetic stirrer is used for preparing chemicals used in scientific research. This type of cooking equipment is typically powered by electricity however, gas fired hot plates were not uncommon in the 19th and 20th century and are still available in various markets around the world. Hot plates can be used for traveling or in areas without electricity. ![]() ![]() A hot plate can have a flat surface or round surface. They can also be used as a heat source in laboratories. Hot plates are often used for food preparation, generally in locations where a full kitchen stove would not be convenient or practical. A hot plate can be used as a stand-alone appliance, but is often used as a substitute for one of the burners from an oven range or a kitchen stove. JSTOR ( October 2010) ( Learn how and when to remove this template message)Ī hot plate is a portable self-contained tabletop small appliance cooktop that features one or more electric heating elements or gas burners.Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification. ![]()
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