论文部分内容阅读
近年来,楼房配线多用硬质塑料管。塑料管煨弯现场电工习惯用火烧煨,管子里外由于受热不均,不是裂就是扁,遇上大风天,难度更大,这样做,既保不住质量,又浪费工时,还影响工程进度。怎样煨制硬质塑料管呢?可采用以下的做法:一、用一只铁桶,底部用砖支撑好,以点火加温方便为宜,桶内
In recent years, hard plastic pipes have been used for building wiring. Plastic pipe bending site electrician used to burn the fire, the inside and outside the pipe due to uneven heat, not cracked or flat, met with windy days, more difficult to do so, not only can not guarantee quality, but also a waste of man-hours, but also affect the progress of the project. How to make a rigid plastic tube? The following methods can be used: First, use an iron bucket, the bottom with a brick support, to facilitate the ignition and heating is appropriate, inside the barrel