Cathode block having a cover layer that contains a hard material

Cathode block having a cover layer that contains a hard material

  • CN 103,443,331 A
  • Filed: 02/06/2012
  • Published: 12/11/2013
  • Est. Priority Date: 02/11/2011
  • Status: Active Application
First Claim
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1. the cathode block for aluminium cell (20,20'"'"', 20'"'"''"'"'), it has basic unit (30,30'"'"', 30'"'"''"'"') and has cap rock (32,32'"'"', 32'"'"''"'"'), wherein said basic unit (30,30'"'"', 30'"'"''"'"') contain graphite, and described cap rock (32,32'"'"', 32'"'"''"'"') contain carbon composite, described carbon composite contain 15 to the fusing point lower than 50 % by weight be the mechanically resistant material of at least 1000 ℃

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