The self limiting heat tracing cable is the only new generation ribbon constant temperature electric heater. The resistivity of its heating element has a high positive temperature coefficient (PTC) and is connected in parallel with each other. The characteristic is that it can automatically limit the temperature during heating and automatically adjust the output power with the temperature of the heated body without any additional equipment; It can be arbitrarily shortened or extended within a certain length range, and allows multiple cross overlaps without concerns of high temperature, overheating, or burning. These characteristics make electric heat tracing have the advantages of preventing overheating, simple use and maintenance, and saving electricity. Suitable for temperature control, tracing, insulation, and heating of pipelines, equipment, and containers, especially when materials are prone to decomposition, deterioration, crystallization, condensation, and freezing. It has a wide range of applications in the production, processing, and other sectors of petroleum, chemical, power, metallurgy, light industry, food, refrigeration, construction, gas, agricultural and sideline products. The electric heating strip is composed of nano conductive carbon particles and two parallel busbars with external insulation layers. Due to this parallel structure, all self limiting electric heating strips can be cut into any length on site and connected using a two way or three way junction box. In each heating wire, the number of circuits between the busbars varies with the influence of temperature. When the temperature around the heating wire cools down, conductive plastic shrinks and causes carbon particles to connect to form circuits. Current flows through these circuits, causing the heating wire to heat up. When the temperature rises, conductive plastic expands into micro molecules, causing carbon particles to gradually separate, causing circuit interruptions and an increase in resistance. The heating band will automatically reduce power output. When the temperature cools down, the plastic returns to the state of micro molecule contraction, and the carbon particles are correspondingly connected to form a circuit, and the heating power of the heating band automatically increases. The self limiting heat tracing belt has advantages that other heat tracing equipment does not have. It controls temperatures that are neither too high nor too low, as the temperature is automatically adjusted
Function 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