Most of the forged components are heat treated by various processes like stress relieving, normalising, annealing, solution annealing, quenching and tempering, case carburising, nitriding, induction hardening, flame hardening to enhance product quality to suit exacting individual requirements. Wherever required, the test bar is subjected to tensile testing, bend testing, impact testing, microstructure checking after heat treatment.
Hard Chrome Plating and Stelliting is done on jobs requiring these applications.
We have successfully carried out large shrink fitting jobs with 100% success rate.
Test pieces (integral or separate) are heat treated alongwith the components and are tested for required physical properties like tensile & impact strength.
Needless to say that we are well conversant with different methods of non-destructive testing for checking product quality viz. Ultrasonic, Magnaflux, Dye Penetrant, Radiography etc.
Break Load Testing is carried out using special fixtures after trial heat treatment of various components within set range. Necessary changes in heat treatment cycles are made to achieve required breaking load strength.
Break load is carried out with three assembled links and tested on universal testing machine.
After the final assembly, conveniently assembled lengths of 12 to 15 feet are tested for proof load to one third of the breaking load. Elongation in length after the test is noted, if any. Proof load testing is carried out on 100% of link chains.