address:No.10, Lane 669, Min Ta Road, Songjiang District, Shanghai, China
phone:189-1713-2726
email:qianghaibin@sh-yhcd.com
Carbon fiber (CF) is a new type of fiber material with high strength and high modulus fiber containing more than 95% carbon. It is a microcrystalline graphite material obtained by stacking organic fibers such as flake graphite microcrystals along the axial direction of the fiber and undergoing carbonization and graphitization treatments. Carbon fiber is lighter than metal aluminum, but its strength is higher than steel. It has corrosion resistance and high modulus properties. It is an important material in national defense industry and civilian applications. It is resistant to ultra-high temperatures in a non-oxidizing environment. It has good fatigue resistance. Its specific heat capacity and conductivity are between non-metals and metals. It has a small thermal expansion coefficient and is anisotropic. It has good corrosion resistance, good X-ray transmittance, good electrical and thermal conductivity, and good electromagnetic shielding, etc.
The sintering and graphitization of carbon materials by furnace at temperatures of 2500°C or even 3000°C are necessary processes for the production of high-performance carbon fibers. So the water-cooled heating transformer supporting the heating power supply is a key component. Our company's high-current water-cooled transformer dedicated to ultra-high temperature graphitization furnace can meet the process requirements of carbon fiber products from T300 to T1000. The maximum full load parameter of a single machine is 2*30KA/65VAC. In order to ensure the temperature regulation requirements of high-temperature furnaces, the water-cooled transformer must have a large-range voltage regulation function on the primary side, which makes the development and manufacturing of water-cooled transformers very difficult. Be guaranteed the excellent electrical performance, after accurate electrical parameter design calculations and scientific structural design, the high-voltage coil adopts a fully water-cooled cake structure, and the low-voltage coil adopts a water-cooled copper plate structure. The overall coil is a staggered distributed axial press-fit, which not only reduces the coil height but also ensures efficient heat dissipation.
1. The outer insulation of the copper pipe is made of imported DuPont Company N0mex-T410 insulation material, which is half-stacked and multi-layered to ensure high reliability of product insulation and temperature resistance. The high-voltage coil adopts a water-cooled multi-cake structure, and the low-voltage coil adopts a water-cooled copper plate structure. The overall coil is a staggered distributed axial press-fit, which not only reduces the height of the coil but also ensures efficient heat dissipation. The voltage regulating tap on the high-voltage side is led out with copper
2. The iron core has a built-in water-cooled heat exchanger to enhance the heat dissipation capacity of the iron core. It adopts 30Q120 high magnetic permeability silicon steel sheet and advanced multi-stage stepping multi-stage lamination method to effectively reduce no-load loss, no-load current and noise. During design and manufacturing, local heating problems caused by large current leakage magnetic eddy currents in the transformer have been eliminated, and the product has extremely high reliability
3. The main pipe of the water system uses copper pipes to meet anti-corrosion requirements, and the water outlet adopts international standard sealing threads to effectively prevent leakage. The branch connecting pipes are made of high-temperature resistant nylon fiber and rubber-compatible pipes or polytetrafluoroethylene pipes to ensure reliable temperature and pressure resistance and durability. The design temperature difference between inlet and outlet water is less than 5℃, the design value of water flow speed is less than 1.5m/s, and the design value of working pressure is less than 3Bar, ensuring the stability and reliability of the water cooling system
4. The lead-out end of the copper tube winding adopts the horizontal lead-out method, and the insulation is locally reinforced. The transformer is treated with "three-proof paint" according to customer requirements (anti-salt spray, anti-humidity and heat, and anti-mold). It has good decorative properties, strong corrosion resistance, good gloss retention, good color retention, good leveling and hiding power, simplified structure and beautiful appearance.
5. The whole machine meets the protection requirements of IP56 level
