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            Leak 
              Testing Sector Overview from TQC 
            Leak 
              Testing of Engine Blocks  
            
            TQC have produced a number of leak test systems 
              for a variety of automotive parts, this includes equipment for the 
              testing of engine block castings. 
            The machines supplied to date include manual 
              and automated loading / unloading, multi cavity leak testing functions 
              and system diagnostics. 
            TQC incorporates standard concetps and customises 
              the equipment to suit the components and test parameters. Examples 
              of components tested include the Vauxhall V6 engine, Rover K Series, 
              Jaguar, Scania etc. 
            Features, Tests & 
              Functions 
             
               
                - Ferrous and non ferrous castings
 
                -  Machined and 'As Cast' conditions
 
                -  Main cavity, High Pressure Oil & 
                  Water Cavity leak tests
 
                -  Interstream leak testing
 
                -  Integrated water submersal for leak 
                  area location
 
                -  Integrated flow & blockage testing
 
                -  Automatic core and ball plugging
 
                -  Multi-channel leak test unit allows 
                  up to 5 cavities to be tested simultaneously
 
                -  Manual loading and unloading
 
                -  Conveyor transfer
 
                -  Integrated robot cells
 
                -  Secondary machining operations
 
                -  Data logging of results with serial 
                  number pass marking for traceability 
 
               
            
               
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                Cast 
                  Iron - fully automated V8 cylinder block - automatic linear 
                  transfer   | 
                 
                   Interchangeable tooling 
                     
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                | Cast 
                  Iron - 'As Cast' 3 cylinder engine block. Fully automatic transfer. 
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                Aluminium 
                  fully machined 6 cylinder engine block with water dunk. Manual 
                  load / unload with gripper 'lift assist'  | 
                Aluminium 
                  - 'As Cast'. 4 cylinder enginer block with rotary water dunk. 
                  Manual load / unload. | 
               
             
            Typical 
              Leak Rates and Test Pressures for no-fluid leakage: 
            
               
                | Oil Circuits | 
                50mm3/sec @ 0.3 bar | 
                3cc / min | 
               
               
                | Water Circuits | 
                200mm3/sec @ 1 bar | 
                12cc / min | 
               
               
                | Interstream | 
                140mm3/sec @ 0.7 bar 
                  differential | 
                8.4cc/min | 
               
             
            If you have a current project that you are 
              already looking at, or you are considering improvements to your 
              production in the near future, call us and we will be happy to offer 
              our professional advice & visit you at your site. 
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