ADVANCED CERMANICS FOR DEFENCE,AEROSPACE AND NUCLEAR APPLICATIONS

Carbolap


It is the most inexpensive lapping medium available for the finishing of hard materials and hardened steels, principally because of the extreme hardness of the Vajrabor Boron Carbide from which the Carbolap paste is made using petroleum products based proprietary composition.

Characteristics Of Carbolap Paste

  • It is the most inexpensive lapping medium available for the finishing of hard materials and hardened steels, principally because of the extreme hardness of the Vajrabor Boron Carbide from which the Carbolap paste is made using petroleum products based proprietary composition.
  • Coarser meshes remove material faster, but give rise to greater surface roughness. Thus the quality of the surface achieved depends on the mesh size utilised. During the lapping operation, a mixture of different grain sizes is produced due to particle attrition, which actually leads to a more uniform working surface layer. Nevertheless, fresh applications of Carbolap Paste at regular intervals are advantageous, as they make available new sharper edges and corners resulting in greater cutting capacity as compared to Carbolappaste, which has already been in use for some time.
  • It is necessary to use only little pressure with Carbolap paste. As a result, there is practically no temperature increase and therefore no hairline cracks or grain boundary fissures are formed. Carbolap paste is thus, an absolutely safe and preferred lapping medium.

Applications

Wire drawing Industry: Polishing of...

  • Drawing dies.
  • Wire guides.

Sugar Industry: Re-lapping of...

  • Mechanical seals of pumps.
  • Compressor valve plates.
  • Steam stop valves for Boilers and Super heaters.

Thermal Power Stations: Re-lapping of...

  • Main steam stop valves for Boilers.
  • Main steam stop valves for Super heaters.
  • Safety valves for Boilers.
  • Control valves (Globe valves) for Boilers.
  • High pressure control valves for Turbines.
  • Mechanical seals.
  • Seal runners of mechanical seals.

Automobile Industry: Lapping and super finishing of...

  • Tappet valves.
  • Transmission gears.
  • Fuel Injection nozzles.
  • Cylinder head liners.
  • Transmission cage body, gearbox body etc.

Lapping and Finishing of...

  • Carbide tipped tools, wire drawing dies, file cutting chisels, punching tools, cutters and reamers.
  • Castings, hardened metal surfaces, optical lenses, natural and synthetic gemstones, ceramics, eyeglasses etc.
  • Valves, valve seats, piston rings, cylinder heads, liners and bores, ball bearings, hardened facings, press moulds, dies and punches etc.
  • Boron Carbide powders manufactured under License from Bhabha Atomic Research Centre, Mumbai.