Copper Metal End Cap And Fuse Link Contact

The Copper Metal End Cap and Fuse Link Contact contains less impurities that reduce electrical conductivity and thermal conductivity. A small amount of oxygen has little effect on electrical conductivity, thermal conductivity and processing properties, but it is easy to cause "hydrogen disease". 

Welding performance of Copper  End Cap and Fuse Link Contact

The thermal expansion and cold contraction are large, and the coefficient of linear expansion of Copper End Cap and Contact Welding Components is large, and the phenomenon of thermal expansion and cold contraction during the welding process is particularly obvious, so the deformation after welding is large.

Oxidation, copper of Design Welded Joints is easily oxidized in liquid state to form cuprous oxide, which is dissolved in copper liquid. During crystallization, a eutectic with a lower melting point is formed, which exists on the grain boundary of copper End Cap and Terminal, which reduces the plasticity and easily causes cracks.

Test method for welding quality effect of Fuse Contact Cap
Non-destructive testing of internal defects in welds Copper Outer Cap

(1)Penetration inspection Penetration inspection is a non-destructive inspection method that uses the penetration of penetrants with fluorescent dyes or red dyes to display traces of defects. Commonly used are fluorescent inspections and coloring inspections.

(2)Magnetic particle inspection Magnetic particle inspection is to magnetize the weldment Copper Slip Cap in a strong magnetic field, so that the magnetic line of force passes through the weld, and when it encounters a defect on the surface of the weld or close to the surface, magnetic flux leakage is generated to attract the magnetic iron oxide powder scattered on the surface of the weld Copper Slip Cap Fitting.

(3)X-ray inspection There are two types of X-ray inspection and Y-ray inspection. When the ray passes through the inspected weld Copper Outer Cap, if there is a defect, the attenuation of the ray passing through the defect is small, so the photosensitive film on the back of the weld is stronger. or stripes.

(4)Ultrasonic inspection Ultrasonic inspection uses the principle that ultrasonic energy propagates inside the metal, and the principle of reflection and refraction occurs when encountering the interface of the two media to inspect the internal defects of the weld Copper End Plate.

Bolt Connection Fuse End Blade Ferrules packaged as delivered can be stored for one year from the date indicated on the packing label under the following conditions:

1）Temperature:-15 °C- +30°C (no condensation) 

2）Humidity :85% RH or less

3）Not exposed to corrosive gas or sea breeze 

4）No visible dust 

5)Not exposed to direct sunlight 

6)Load:No application of load that may cause deformation or degradation of the product.

Priljubljena oznake: Kovinski končni pokrov in kontakt z varovalko, Kitajska, proizvajalci, dobavitelji, tovarna