Luting Sand for Thermit Welding
Thermite Welding Supplies: Luting Sand Main material is SiO2(Silicon dioxide). It is used to seal the gap of the sand mold to avoid liquid steel leaking. 1770~2000℃ Refractory temperature, 3kg/weld.
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Luting sand is a mixture of refractory materials used in thermit welding to seal the gap between the rail ends to be joined. The luting sand forms a temporary mold or container around the weld site, preventing the molten metal from escaping and ensuring that the weld solidifies correctly.
Main material is SiO2. It is used to seal the gap of sand mould, to avoid the liquid steel leaking.
Refractory temperature:1770~2000℃
Weight:3kg/weld
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The advantages of using luting sand in thermit welding are:
Provides a proper seal: The luting sand is placed around the rail ends and provides a seal, ensuring that the molten metal does not escape during the welding process. This results in a more precise and uniform weld.
Resistant to high temperatures: Luting sand is made of refractory materials, making it resistant to high temperatures of up to 2000°C, ensuring that it does not melt or burn during the welding process.
Easy to handle: Luting sand is a dry mixture, making it easy to handle and apply to the rail ends, allowing for precise application and reducing the risk of spills.
Economical: Luting sand is a cost-effective option for thermit welding, as it is relatively inexpensive compared to other welding materials.
Non-toxic: Luting sand is non-toxic, making it safe for the environment and the welders.
In summary, luting sand plays a critical role in thermit welding by providing a seal around the rail ends, ensuring that the molten metal does not escape during the welding process. Its advantages include providing a proper seal, resistance to high temperatures, ease of handling, cost-effectiveness, and non-toxicity.
Thermit Welding Video
Steel rail aluminum thermal welding is a filler welding, the technology is aluminum powder, iron oxide, and alloy additives formulated into aluminum thermal flux in a special crucible, and then lit with a high-temperature match to trigger the aluminum thermal chemical reaction, the formation of steel, cast into the sand cavity, and melt the rail together crystallization, cooling, the two sections of steel rail welded into a whole.
The main features of aluminum thermal welding of steel rails
1. simple equipment
2. filler welding, the use of flux reaction generated aluminum hot steel liquid filling the gap between the rails to be welded.
3. high smoothness of the joint
4. short operating time
5. welding occupies little space
6. welding construction occupies little time
7. No need to connect the power source
Our Advantages
1. tensile strength of welded joints is 5%~18% higher than peers
2. Welding quality testing meets railroad requirements.
3. Three-piece die sand type can meet the welding requirements of rail cross-section, weld width, and the use of special processes
4. Price is 8%~25% lower than peers.
5. Free training, humanized service.
6. Free samples
Application areas
Steel rail aluminum heat welding flux is mainly used in railroad line maintenance, line overhaul, and new line construction.
Use scenarios: such as railroads, subways, factories' lifting rails, elevated railroads, city rails, etc.
Main export countries
Philippines, Vietnam, Thailand, Indonesia, Singapore, Malaysia, Myanmar, Laos, Cambodia, Sri Lanka, Korea, Russia, Turkey, Tajikistan, Pakistan, Bangladesh, etc.
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