How will NASA's Solar Probe 'touch' the Sun without melting?

Launching this year, NASA's Parker Solar Probe is set to go within 6.4 million kilometres of the Sun's surface. It will feature a shield made of two superheated carbon-carbon composite boards to provide protection from heat. Further, the components of the Solar Probe have high melting points, as temperatures of the shield are expected to go as high as 1,370ºC.