Knowledge

Rated power deviation Under the condition of sufficient heating, the deviation of the rated power of the components should not exceed the specified range listed below; for components with a rated powe

The pipe wall is too thin, the material grade is too low, and there is a seam pipe;

The leakage current in cold state and the leakage current after water pressure and airtight sealing attempts should not exceed 0.5mA; the leakage current in hot state at office temperature should not

For example, the amplitude of the bonus equipment is unstable, the lifting speed of the guide rod is uneven, and the powder leakage speed is fast or slow. Even if the various parameters are normal, th

The heating time is under the test voltage, and the time for the element to rise from the background temperature to the test temperature should be more than 15 minutes. The power of some companies is

When the powder is added, the exposure of the lead-out rod does not meet the requirements. If it is too short, the heating wire lead-out bar is stretched while adding powder while vibrating while addi

The electric heating tube is convenient and simple to use, as long as the wire is energized and heated, the thermal effect of passing the current through the current can quickly increase the temperatu

Generally, the heating wire in the electric heating tube is designed in a spiral shape, that is, a spring shape. If the ratio of the diameter D of the winding mandrel to the diameter d of the heating

Due to the uneven hardness of the resistance wire material, the uneven helical pitch of the wound heating wire after stretching occurs. This situation generally occurs in the well-returned process of

The manufacturing process of the electric heating tube is relatively simple, but it cannot tolerate a trace of rubbish. Its center lies in the resistance wire inside. The quality of the resistance wir

Copper core wire, the cross-sectional area of each square millimeter can safely pass the rated current of 4--5A; in a 220V single-phase circuit, the current per 1KW of power is about 4.5A, in a 380V t

1. First, clean the surface of the metal pipe to keep it clean and tidy; 2. The second is to degreasing the surface. This process can completely place the metal tube in the degreasing solution. The PH