Описание

Tungsten Carbide Долото

This type of bit uses tungsten-carbide as the cutting Среды. Tungsten-carbide does not possess the Твёрдость of diamond and as such has a limited range of Применение as a core drilling cutting Среды. T.C bits are however a very cost-effective means of drilling softer unconsolidated formations.

These bits are set with rectangular-shaped or octagonal-shaped or crushed tungsten-carbide elements that are physically embedded into the crown of the bit. The bit crown itself is composed of a tough, wear resistant metal-bond matrix Материал.

The Применение of this bit is primarily in geotechnical soil investigation or for core drilling in overburden layers that are mainly composed of clay, sand, gypsum or soft shale.

Regular T.C Core Долото

These bits are set with rectangular-shaped or Восьмигранный-shaped tungsten carbide elements that are physically embedded into the crown of the bit.The bit crown itself is composed of a tough,wear resistant metal-bond matrix Материал.

The Применение of this bit is primarily in geotechnical soil investigation or for core drilling in overburden layers that are mainly composed of clay,sand,gypsum or soft shale.

Broken Carbide Core Долото

The cutting Среды used in this type of bit is crushed tungsten-carbide that are bonded in a metallic alloy. This type of bit has more cutting edges than the regular T.C bit and as such have a wider range of Применение in some formations.

This bit is similar to imoregnated diamond bits in that the bit crown is composed of several layers of cutting Среды. The bit face regenerates itself with new cutting edges by wearing away the metallic alloy during operation to continually expose new layers of carbide-chips until the bit crown is consumed.