9.7　Furnace Cover，Electrode Rotating Mechanism and Furnace Cover Lifting Mechanism

Ⅰ　Dominant Items

9.7.1　The tightening force to connect bolts of rotary portal frame shall comply with the requirement of the design technical document.

Quantity to be checked:100%.

Inspection method:Observe，check with a torque wrench，and check the record of tightening force.

Ⅱ　General Items

9.7.2　The allowable deviation for installation of furnace cover，electrode rotating mechanism and furnace cover lifting mechanism shall comply with the requirements in Table 9.7.2.

Quantity to be checked:100%.

Inspection method:See Table 9.7.2.