149 a:4:{s:8:"template";a:1:{s:27:"Work Instruction-print.html";b:1;}s:9:"timestamp";i:1368071189;s:7:"expires";i:1368074789;s:13:"cache_serials";a:0:{}}WI 2012 - Molding a Sleeve to Length


Created Modified Rev. Changed by Change
08/09/05 08/16/07 3 Mathias Retyped equation



When Molding with the tall molds (over 12”) the powder weight in the routing is used as a reference for the first sleeve.  Once the first sleeve is molded measure the sleeve and compare it to the sleeve length.  If the sleeve length is within 1/16 above or below the required length, the powder weight is correct.  If the length is not correct, the following formula can be used to find the correct weight.

 

 

P = Powder weight from routing

S = Sleeve length from first sleeve

L  = Length of sleeve needed per routing

N = New powder weight needed for proper sleeve length

 

 P / S x L = N

 

Take the powder weight from the routing and divide that by the sleeve length from the first sleeve sample, multiply that number by the length of sleeve needed and that will be the new powder weight to use for the optimal sleeve length.