Thermit
This is a welding method, in the exothermic reaction between oxide powder and aluminum powder, there are overheating melt metal produced which can joint metal and structure together.
Characteristics
①The current carrying capacity in welding points is equal to lead
②The jointing is permanent, and does not cause high resistivity because of corrosion or loosening
③It is portable and cheap
④Do not require external power source
⑤Do not require specialized technica
⑥The quality can be examined visually