NUBERT & CO SRL

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Cubic boron nitride pastes

Cubic Boron Nitride Pastes is produced for semi-finishing and finishing operations. It is used for finishing and polishing operations of carbon and alloy steel, chilled iron.

Past composition is next: cubic boron nitride powder, filler with organic oils, fatty acids,  carbons of paraffin series and its derivate, polymer material. Cubic Boron Nitride Paste affects on processed surface with chemical and mechanical influence. The past composition consists of surface active materials, they help with washing workpieces, and output the slags from the processing surface.

It increases productivity and the roughness of the surface.

The paste divides:

“N” – normal consistency

“H” – higher consistency

“E” – extra-high consistency

CBN Grit Size and Abrasive Properties

Grit Size of CBN Powder Color of Paste and Label Abrasive Capacity (N) Abrasive Capacity (H) Abrasive Capacity (E) Surface Roughness (Ra) Before Processing (µm) Surface Roughness (Ra) After Processing (µm)
B213; B151
B126 – B91
60/40 µm Red 67 127 175 0.4 0.195
40/28 µm Red 62 123 163 0.2 0.155
28/20 µm Red 57 112 157 0.16 0.12
20/14 µm Blue 52 102 153 0.125 0.095
14/10 µm Blue 47 97 148 0.1 0.075
10/7 µm Green 42 93 143 0.08 0.06
7/5 µm Green 37 82 137 0.063 0.045
5/3 µm Green 32 65 108 0.05 0.038
3/2 µm Yellow 0.04 0.03
2/1 µm Yellow 0.32 0.23
1/0 µm Yellow 0.25 0.02