When users choose better heating wires, they often choose some imported heating wires to meet the requirements of the equipment. However, the imported heating wires on the market are of many quality. The more famous ones are Kanthal heating wires from Sweden, Isabellenhuette from Germany (currently the most advanced manufacturer of precision micro-resistance resistors in the world) and Sedes from the United States. Electric heating alloy (Sedes is a brand, is the world's leading developer and manufacturer of industrial heating, and its products are made of advanced stainless steel and special alloys in the most demanding environment). Numerous brands neutralize the professional manufacturing level, and have many years of production experience and technology accumulation in their fields. The product environment is more demanding and has its advantages compared with domestic products.
German Isabellenhuette (abbreviation: ISA, Isabel) is currently the world's leading manufacturer of thermoelectric alloys, resistance alloys, and low-resistance precision and power resistors.
The performance characteristics of Isabellenhuette resistors: 1. Small size, long-term high power; 2. Absolutely low temperature coefficient value; 3. Excellent long-term stability; 4. Very low resistance range starting from 0.005 milliohms; 5. High Pulse load; 6. Very small standard error; 7. There is almost no temperature difference voltage relative to copper. Whether it is a conventional resistance or a high-load power resistance, the product performance meets the highest-end requirements.
The American Sedes electric heating alloy, nickel-chromium alloy, is used in an environment with a temperature as high as 1200°C (2190°F). The alloy is characterized by high electrical resistivity, good oxidation resistance and very good shape stability. It can also provide good ductility after welding, and also has a very long service life.
The United States' Sedes electric heating alloy, Fe-Cr alloy is smelted by an advanced powder metallurgy technology, which can be used in harsh environments with temperatures as high as 1450°C. And the characteristics of the alloy are very good morphological stability and oxidation resistance. Product performance meets high-end requirements.
The superiority of Kanthal Kanthal of Sweden is mainly mentioned in the following six aspects:
1. The energy conversion efficiency of KANTHAL heating wire is higher than that of domestic heating wire. The maximum temperature is 1425℃2600 F, which is higher than the nickel-chromium alloy 1250℃2280 F.
2. KANTHAL heating wire and domestic heating wire are used under the same specifications, and the service life of imported heating wire is 4-8 times that of domestic heating wire.
3. KANTHAL heating wire has a high surface load.
4. KANTHAL heating wire has high resistivity.
5. Kanthal KANTHAL heating wire has a lower density and saves material costs.
6. No oxide debris will be produced. Oxides can contaminate goods and electric furnaces, and may cause short circuits or failures of electric heating elements and gas burners. For the use of electric furnaces, the result of using Kanthal iron-chromium-aluminum alloy is lower operating cost, less material consumption, and longer life.
So to sum up, compared with other brands of imported electric heating wire (Kang Tai Er Si), Kang Tai Er Si is more suitable for our domestic ordinary users, and it is more suitable and suitable for domestic users. The price/performance advantage is also obvious.
Imported heating wire products and domestic heating wire products have slightly higher operating costs, low replacement frequency, less material consumption, and relatively long life. These advantages have been widely used in medium and large enterprises and sophisticated equipment. At present, small and medium-sized enterprises are also beginning to replace the Swedish Kantell wire, which is gradually accepted. The price is slightly higher than that of domestic heating wires, but in the long run, it is still a good choice.
So how should we use or operate the heating wire element to last longer, some suggestions are as follows:
1. Avoid temperature changes:
The operating life of the heating element (Kangtels) will be reduced with a few sentences of temperature changes, so a temperature-stable power control device should be selected.
2. Choose thicker components (Kangtaiers) materials:
The thickness of the material has a direct impact on the life of the component. As the line increases directly, there will be more alloy components per unit on the surface that can form new oxides. Therefore, at a certain temperature, the life of the thicker wire-shaped element (Kantair) is longer, and similarly, the life of the thicker ribbon is also longer than that of the thinner.
3. Adjust the temperature of the components (Kangtaiers) according to the atmosphere of the electric furnace:
The atmosphere of some common electric furnaces has an influence on the maximum operating temperature of heating elements. Due to the danger of "green corrosion" at 800~950℃ and 1470~1740℃, Ni-Cr Kangtal wire should not be used in electric furnaces containing carbon monoxide protective atmosphere. In these cases, it is recommended to use Kangtaier alloy wire, but the heating element must be pre-oxidized at 1050℃ to 1920℃ for 7-10 hours, and the heating element should be re-oxidized regularly.
4. Avoid the corrosion of solid, fluid and gas electric furnace:
Atmospheric impurities, such as oil, dust, volatile substances, or carbon deposits, can damage heating elements. Sulfur is harmful to all nickel alloys. Chlorine in different states will damage Kanthal wire and nickel-chromium Kanthal wire alloy. Metal solution or salt may also harm heating elements (Kangthal wire).
We recommend that customers choose the heating wire according to the best debugging of the product equipment.
