Marking of abrasive tools and materials
DESCRIPTION OF THE CHARACTERISTICS OF THE ABRASIVE TOOL
Tool type
|
1 |
direct profile (PP) |
|
2 |
ring (K) |
|
3 |
conical (3P) |
|
4 |
double-sided conical (2P) |
|
5 |
with one-sided recess (PV) |
|
6 |
cylindrical cup (hh) |
|
7 |
with two recesses (LDPE) |
|
10 |
with double-sided recess and hub (PVDS) |
|
11 |
cup conical (CC) |
|
12 |
poppet (T) |
|
14 |
poppet (1T) |
|
20 |
with one-sided conical recess |
|
21 |
with double-sided conical recess |
|
22 |
with a conical recess on one side and cylindrical with another |
|
23 |
with conical and cylindrical recesses on one side (PVC) |
|
24 |
with conical and cylindrical recess on one side and cylindrical on the other |
|
25 |
with conical and cylindrical recesses on one side and conical on the other |
|
26 |
with conical and cylindrical recesses on both sides (PVDC) |
|
27 |
with a recessed center and reinforcing elements |
|
28 |
with a recessed center |
|
35 |
straight profile, working end |
|
36 |
with pressed fasteners (MON) |
|
37 |
annular with pressed fasteners elements |
|
38 |
with one-way hub |
|
39 |
with double-sided hub |
|
41 |
cut-off |
Grain size
|
|
FEPA |
GOST R 52381-2005 |
GOST 3647-80 |
|
large
|
F10 |
- |
200 |
|
F12 |
P12 |
160 |
|
|
F16 |
P16 |
125 |
|
|
F20 |
P20 |
100 |
|
|
F24 |
P24 |
80 |
|
|
F30 |
P30 |
63 |
|
|
medium
|
F36 |
P36 |
50 |
|
F46 |
- |
40 |
|
|
F54 |
P50 |
32 |
|
|
F60 |
P60 |
25 |
|
|
F70 |
- |
20 |
|
|
F80 |
P80 |
16 |
|
|
shallow
|
F90 |
- |
- |
|
F100 |
P120 |
12 |
|
|
F120 |
P120 |
10 |
|
|
F150 |
P180 |
8 |
|
|
F180 |
P220 |
6 |
|
|
thin
|
F220 |
- |
5 |
|
- |
- |
4 |
|
|
- |
- |
3 |
Brand of sanding material
|
13A, 14A |
normal electrocorundum |
|
25A |
white electrocorundum |
|
95A |
chrome titanium electrocorundum |
|
53C, 54C |
silicon carbide black |
|
63C, 64C |
silicon carbide green |
Bundle type
|
V |
Ceramic |
|
B |
Bakelite |
|
BF |
Bakelite with hardening (BU) |
Hardness
|
GOST R 52587-2006 |
GOST 18118 GOST 19202 GOST 21323 |
|
|
F |
VM1 |
very soft
|
|
G |
VM2 |
|
|
H |
M1 |
soft
|
|
I |
M2 |
|
|
J |
M3 |
|
|
K |
CM1 |
medium soft |
|
L |
CM2 |
|
|
M |
C1 |
medium
|
|
N |
C2 |
|
|
O |
CT1 |
medium hard
|
|
P |
CT2 |
|
|
Q |
CT3 |
|
|
R |
T1 |
solid |
|
S |
T2 |
|
|
T, U |
w |
very solid |
|
V, W, X, Y, Z |
thu |
extremely hard |
Structure
|
1, 2, 3, 4 |
dense |
|
5, 6, 7 |
medium |
|
8, 9, 10 |
open |
|
11, 12, 13, 14, 16 |
highly porous |
Characteristics of the main raw material
Electrocorundum normal (13A, 14A): high-strength material with a wide range of applications. It contains from 94.5 to 96.7% aluminum oxide (Al2O3). It is produced by melting bauxite.
Electrocorundum white (25A): material with a high content of Al2O3 - 99.4-99.7% with a slight presence of other oxides. It is used mainly for circles on a ceramic bundle.
Chromium titanium electrocorundum (95A): produced by melting alumina with the addition of alloying components, titanium and chromium oxides. Alloying with two different components makes it possible to improve the abrasive properties of the material. It is used for the manufacture of tools on bakelite and ceramic bundles.
Silicon carbide black (53C, 54C): contains SiC - 96-99%. It is produced by reducing silicon in resistance furnaces.
Silicon carbide green (63C, 64C): similar to black silicon carbide, but with higher purity (SiC more than 99%). They are used to a greater extent for the production of circles of medium and small grains.
Ceramic binder (V): has high moisture and chemical resistance, rigidity and tensile strength. It is widely distributed and used for the manufacture of all standard sizes of circles. The tool on a ceramic bundle is used for all types of grinding except roughing, cutting and slotting narrow grooves, flat grinding with segment circles, grinding of ball bearing grooves. It keeps the profile well, has a high. porosity, removes heat well.
Bakelite bundle (B): produced on the basis of phenol-formaldehyde resins. It has high specific strength and elasticity. It is widely used for thin circles and circles working with variable load. The tool on a bakelite bundle is used for rough stripping, for flat grinding with the end of a circle, cutting and cutting grooves, sharpening, when processing thin products where cauterization is dangerous. In addition, the bakelite bundle has a polishing effect. The limitation of the bakelite bundle is its low resistance to alkaline coolant.
Source: Volga Abrasive Plant