Considering the characteristic of thermite and the concrete structure of the welding rod, the design scheme of special-purpose flame igniter is adopted, and the igniter is designed in detail.

• 针对焊接药剂的特点,并结合焊条的具体结构,采用专用火焰点火器点燃焊条的设计方案,并对点火器进行了详细设计。