What are the selection tips for crawler heaters?
 
 　　Crawler heater is a multi-shaped heater that can be heated by bending, folding, etc. It is suitable for heating various metal components. Today, the editor will introduce its heating principle.
1. Use the Joule effect of current to convert electrical energy into thermal energy to heat objects. It is usually divided into direct resistance heating and direct resistance heating.
2. The power supply voltage is directly applied to the object to be heated. When current flows, the object itself generates heat.
3. Resistance heating requires heating elements made of special alloy or non-metallic materials. The heating elements generate thermal energy, which is transferred to the object to be heated through radiation, convection, and conduction.
4. The materials used for heating elements in direct resistance heating usually require high resistivity, low temperature coefficient of resistance, small deformation at high temperatures, and not easy to embrittle.
The crawler ceramic electric heater, whose width can be flexibly changed, should be selected according to the geometric shape, wall thickness, and heat treatment process requirements of the workpiece. The following table lists only some specifications. In addition, the crawler heater can also be equipped with insulation materials and a shell to make a self-insulating heater, whose shape can be flat, right-angle, etc., for convenient use.
Selection tips for crawler heaters
1. Check the product label. The product specifications, model, and trademark should be consistent with the manual. There should be a national compulsory certification mark (i.e., CCC mark), manufacturer name, product出厂 inspection certificate, and implementation standard code.
2. Check the appearance and assembly quality. Switches and knobs should be flexible and reliable. It is best to test the product's effect by powering it on site during purchase.
3. Choose a product with power suitable for the room area. Generally, choose an indoor heater with power below 2000W. Although high power heats quickly, it may cause tripping and power outage when used simultaneously with other household appliances due to excessive power.
4. If directional heating of a local space is needed, choose a radiant heater; if the entire indoor space needs to be heated, choose a convection heater. Generally, choose a bathroom heater or fan heater for the bathroom, which takes up little indoor space and heats quickly; for the living room and bedroom, consider a radiant heater or oil-filled radiator.
5. The power supply of the indoor electric heater must use a qualified three-hole socket with a ground wire, otherwise there is a risk of electric leakage.
6. Do not simply pursue low prices. Generally, products that deviate too much from normal prices cannot objectively guarantee product quality.