Exothermic welding/mud welding/chemical welding
VECEWELD exothermic welding process produces high copper liquid and aluminum oxide residue through chemical reaction (reaction exothermic) of aluminum and copper oxide. temperature generated by the exothermic reaction to realize the modern welding process of high-performance electric welding. Exothermic welding is suitable for electrical connections between copper and copper, steel and copper, and does not require any external power or energy.
The reaction equation of COUWELD exothermic welding process is as follows
3Cu2O+ 2Al = 6Cu +Al2O3 ↑(2800℃)
Mainly used in the welding with grounding, such as: power plants, hydroelectric plants, LNG stations, chemical plants, oil stations, grounding of machine rooms, etc.
The grounding modules may not benot familiar to some friends, but they are used in various fields such as industrial manufacturing, chemical production, building materials and railway transportation. It can be said that they are very useful. and has many uses. This is actually a grounding object, but it is a non-metallic material. Why use non-metallic materials as grounding tools? This is because non-metallic materials have relatively strong stability and good electrical conductivity. This can make the grounding process easier and more convenient. So what exactly is it for?
The grounding module is a grounding body mainly made of non-metallic materials. It is composed of non-metallic minerals and electrolytic substances with good conductivity and stability. It solves the problem that metal grounding bodies have alow affinity in acidic or alkaline soils and are prone to corrosion on the surface of the metal body, causing a change in grounding resistance. When there are too many organic substances in the soil, it's easy. to form a phenomenon where the surface of the metal body is enveloped by ink, resulting in the weakening of the conductivity and effusion ability increases the dispersion area of the grounding body itself, reduces the contact resistance between the grounding body and the ground, and has strong moisture absorption and hydration capabilities, which reduces the resistivity of the surrounding soil. The dielectric constant increases, the interlayer contact resistance decreases, and the corrosion resistance increases, thereby achieving lower ground resistance and longer service life.
Function:
(1)? Reduce contact resistance. The main material ofgrounding module has a physical structure similar to that of the ground and can be embedded in the ground, which makes the effective contact area between the grounding body and the ground several times larger than that of the grounding body metal grounding, thereby increasing effective dispersion. area of the grounding body and significantly reducing the contact resistance between the ground body and the ground can significantly improve the grounding efficiency and reduce the area occupied by the ground network.
(2) Stable ground resistance. The grounding module itself has a strong ability to absorb moisture and keep the ground around it moist, ensuring that the grounding module can effectively perform its conductive function at the same time, the properties conductive conductive objects in the grounding body are not affected; by seasonal changes such as dry humidity,high and low temperatures, etc. Therefore, stable ground resistance can be provided.
(3)? Reduce potential counterattacks on the ground. The non-metallic material of the earth module makes the resistanceA low resistance zone with relatively gentle changes is formed between metals and soils with huge resistance differences. When a large current strikes, the transient potential gradient of the grounding body and ground wire can be reduced, the step voltage and contact voltage can be reduced. reduced, and the likelihood of a potential ground counterattack may be reduced.
After listening to the editor's explanation above about the role of the grounding module. My friends must have a new understanding of grounding modules. In fact, the most important role of grounding modules is in safety installations. Due to the update functionAs a safety ground, they are used in anti-interference installations, lightning protection installations and anti-static installations. various factories and communities. Among safety installations such as installations, it can reduce resistance, thereby achieving perfect completion of grounding work and good safety guarantee. That's all for today's explanation about the role of grounding module, hope to help you.