n.铝热剂(铝粉焊接剂；铅热剂焊接法；铝热剂焊接法)

Microporosity in thermite weld joint consiste of blow hole and shrinkage cavities. 氧或硅含量过高形成氧化物或硅酸盐;

Thermite is aluminum powder and a metal oxide which produces an aluminothermic reaction known as a thermite reaction. 铝热是铝粉，一种金属氧化剂，能产生我们所谓的铝热反应。

In an iron thermite reaction, iron oxide reacts with aluminum and comes out as liquid iron. 在铁的铝热剂还原反应中，铁的氧化物与铝反应，从而生成液态铁。

The practice shows that smelting high grade ferrotitanium with rutile by thermite method is feasible. 实践证明，采用金红石铝热法生产高钛铁在技术上是完全可行的。

A thermite reaction is initiated with some type of detonator and it can burn at temperatures of thousands of degrees. 铝热反应可由一些起爆剂引发，在数千度的高温下燃烧。

In the clip above we see an attempt to “cool” the thermite reaction by dumping it in a vat of liquid nitrogen. 在上面的视频中我们看到，为了让铝热反应“降温”而浇入大量液氮。