Tuesday, July 29, 2014

Stainless steel belt and solar modules

In Japan large solar power plants have been made here and there.
Its safety is evaluated.

It is interesting to know that stainless steel belts are used in many process of solar module manufacturing.

First is band saw. This steel belt is a knife to cut long silicon ingot into several pieces.  Belt is set in the cutter and rotates in high speed to cut silicon.  These silicon pieces are set in wiresaw cutting machines and becomes silicon slices.

These slices are made silicon wafer and wafers are combined together in a stringer.  Here wafers are connected with each other by automatic soldering of inter-connectors.  This stringer process is done on steel belts that are flat and tough in heat environment.

Flow of solar module production and steel belts