Electric heaters refer to electrical appliances that use electrical energy to achieve heating effects. It has a small size, high heating power, and is widely used. It adopts an intelligent control mode with high temperature control accuracy and can be connected to computers. Wide application range, long service life, and high reliability. The core of the heater principle is energy conversion, and the most widely used is the conversion of electrical energy into thermal energy. Main Classification
Classification of Electric Heaters
Electric heaters refer to electrical appliances that use electrical energy to achieve heating effects. According to the type of heating method, they can be divided into three categories:
1. Electromagnetic heating
Electromagnetic heating is the process of generating alternating magnetic fields through electronic circuit board components, and when placed in iron containing containers, The surface of the container is equipped with alternating magnetic field lines, which generate alternating current (eddy current) in the metal part at the bottom of the container. The eddy current causes the iron atoms at the bottom of the container to move at high speed and irregularly, causing them to collide and friction with each other, generating heat energy. This has the effect of heating the item. Because the iron container generates its own heat, the heat conversion rate is particularly high, reaching up to 95%. Induction cookers and stoves all use electromagnetic heating technology
2. Infrared heating
The heat transfer form of infrared is radiation heat transfer, which transfers energy through electromagnetic waves.
. When far-infrared light shines on a heated object, some of the rays are reflected back and some are penetrated through. When the wavelength of the emitted far-infrared light is the same as the absorption wavelength of the heated object, the heated object absorbs far-infrared light. At this time, molecules and atoms inside the object undergo "resonance" - generating strong vibrations and rotations, which increase the temperature of the object and achieve the purpose of heatingFunction of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China