Kekurangan daripada Hechuan radiasi tiub

Kekurangan daripada Hechuan radiasi tiub

The specifications of Hechuan radiation tubes and nickel chromium alloy wires have become widely used resistors today. So, what advantages do they have in use to make them well-known to the public? Compared with ordinary thermistors, nickel chromium alloy wires for electric heaters have the following advantages: ① small volume, no air gap inside, small measurement lag in thermal inertia; ② Good mechanical properties, vibration resistance, and impact resistance; ③ Capable of bending, easy to assemble ④ Long service life Hechuan radiation tube specifications. The end face thermal resistance temperature sensing element is wound by a specially treated resistance wire and is tightly attached to the end face of the thermometer. Compared with general axial thermal resistance, it can accurately and quickly reflect the actual temperature of the measured end face, and is used to measure the end face temperature of bearings and other components.

Alloy strip bending corrugated components and vertical spiral strips are both formed with specialized equipment, which has the characteristics of forming standards, flatness without bending, and surface protection without damage. The welding of electric heating alloy components can be carried out on both iron chromium aluminium and nickel chromium alloys. Walau bagaimanapun, if the welding texture is not good, it will not only shorten the thermal stability of the welding area, but juga reduce the service life of the electric heating alloy components. Berkenaan elektrik pemanasan aloi komponen dibuat daripada besi kromium aluminium, due to the single-phase ferrite nature of the alloy, after high-temperature welding, the grain size near the welding joint increases due to high temperature, the plasticity decreases, and it is easy to brittle fracture, Be very careful when installing the Hechuan radiation tube in this situation.

Shortcomings: Mainly due to low high-temperature strength, its plasticity increases with the increase of usage temperature, and the components are prone to deformation and are not easily bent. The main advantages and disadvantages of nickel chromium electric heating wires for electric heaters include: higher high-temperature strength than iron, chromium, and aluminum, less likely to deform under high-temperature use, less likely to transform its structure, better plasticity, and ease of use. Electric heaters have high radiation rate, no magnetism, strong corrosion resistance, and long service life. Decline: Due to the use of scarce nickel metal materials, the price of this series of products is several times higher than that of iron chromium aluminum, and the usage temperature is lower than that of iron chromium aluminum for Hechuan radiation tubes. When using high-temperature resistance tapes, be careful: when designing resistance tapes, choose the correct specifications according to the appropriate surface load; Before assembling the resistance tape, conduct a comprehensive inspection of the furnace to eliminate ferrite and carbon deposition, in order to avoid short circuits or furnace wire breakdown; When installing resistance tape devices, they should be connected correctly according to the designed wiring mode; Before using the resistance tape, check the sensitivity of the temperature control system to prevent ineffective temperature control and damage to the electric furnace wire.

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