Example of a marked product

3 150x16x32 25A 40 K  6 V 30 2
1. 2. 3. 4. 5. 6. 7. 8. 9.
1. Circles
1-direct profile
2-ringed
3-conical profile
4 - with double-sided conical profile
5 - with a recess
6-cup cylindrical
7,8,9 - with double-sided recess
10-with double-sided recess and hub
11-conical cups
12-poppet flat plates
14-poppet-shaped
20 - with one-sided conical recess
21 - with double-sided conical recess
23 - with conical and cylindrical grooves on one side
27-with a recessed center
35 - straight profile, working end face
36,37,40 - with pressed fasteners
38-with a single-sided hub, working with the end
face 41-cutting circles
42-cutting circles with a recessed center
Segments

SP-rectangular
1C-convex-concave
2C-concave-convex
3C-convex-flat
4C-flat-convex
5C-trapezoidal
6S-for floor grinding
7C-for flat Grinding
9C -for rail grinding

Bars

BP-rectangular
BKv-square
BT -triangular
BKr-round
BPs-special

2. Circle dimensions

D -outer diameter
T-height
H -hole diameter

3. Sanding material

14A (A) Electrocorundum normal

25A (WA) Electrocorundum White

38A (ZK) Zirconium Electrocorundum

53C, 54C (C) Black Silicon Carbide

63C, 64C (GC) Silicon Carbide Green

4. Grain size (grindable)

F10 (200) - F3 F10(50)
F12(160) - F12(160)
F14 (160) - F14 (40)
F16 (160/125) - F54(32)
F20 (100) - F60(25)
F22 (80) - F70(20)
F24 (80) - F80(20)
F30 (63) - F90(16)

powders

F100 - (12)
F120 - (10)
F150 - (8)

F180 - (6)
F220 - (5)

micro-powders

F230 - (M63)
F240 - (M63/M50)
F280 - (M50)

F320 - (M50/M40)

F360 - (M40)
F400 - (M28)
F500 - (M20)
F600 - (M14)

5. Hardness

F, G - (VM1, VM2)- VERY SOFT


H, I, J - (M1,M2, M3) - SOFT


K, L - (CM1, CM2) - MEDIUM SOFT


M, N - (C1, C2) - AVERAGE VALUES


O, P, Q - (CT1, CT2, CTZ) - MEDIUM-HARD


R, S - (T1,T2) - SOLID


T - (W) - VERY HARD


V - (THU) - EXTREMELY HARD

6. Structure

1-2-3-4 ➡ closed
5-6-7➡medium
8-9-10➡open
11-13➡highly porous

7. Bundle

V (K) - CERAMIC
B (B) - BAKELITE
BF (BU) - BAKELITE WITH STRENGTHENING ELEMENTS

B4 (B4) - BAKELITE WITH GRAPHITE
FILLER

8. WORKING SPEED, M / S

⇢20;

⇢25;

⇢ 32;

⇢ 35;

⇢ 40;

⇢ 50;

⇢ 63;

⇢ 80;

⇢ 100.

9. UNBALANCE CLASS

⇥ 1;

⇥ 2;

RECOMMENDATIONS FOR CHOOSING AND USING ABRASIVE TOOLS

Choice of abrasive material:

BRAND OF ABRASIVE MATERIAL ==== SCOPE OF APPLICATION

 

14A (A) Обработка Processing of materials with high tear resistance, roughing of steel castings, rolled products, high-strength cast irons, processing of carbon and alloy steels, bronze, nickel and aluminum alloys.

25A (WA)  Обработка Processing of hardened parts made of carbon, high-speed and stainless steels. Processing of fine parts and tools (teeth, knives, drills, incisors), sharpening.

38A (ZK)  Сил Power roughing of steel workpieces.

54C; 63C (S; GC)  Обработка Processing of hard materials with low tear resistance (cast iron, bronze, brass, hard alloys, glass, precious stones, marble, granite, porcelain), as well as very viscous materials (heat-resistant steels, alloys, copper, aluminum).

 

Selecting the circle grain size

GRANULARITY ====== TYPE OF PROCESSING

F10-F22 (200-80) Обд  Roughing operations with a large cutting depth, stripping workpieces, castings. Processing of materials that cause salting of the wheel surface (brass, copper, aluminum).Cutting, flat grinding with the end of the circle, sharpening of incisors, straightening of abrasive tools.

 

F22-F36(80-50) Отрез  Segments, flat grinding with the end of the circle, sharpening of cutters, straightening of abrasive tools.

F30-F60(63-25) ⇨  Pre-and combined grinding, sharpening of cutting tools.

F40-F220 (40-5) ⇨ Flat grinding.

F54-F90 (32-16) ⇨ Fine grinding, profile surface treatment, sharpening of small tools, grinding of brittle materials.

F100-F180 (12-6) ⇨ Finishing grinding, finishing of hard alloys, finishing of cutting tools, steel workpieces, sharpening of thin blades, pre-honing.

F180-F280(6-M50) ⇨ Finishing grinding of metals, glass, marble, etc., thread grinding, finishing honing.

F230-F600 (M63-M14) ⇨ Superfinishing, final honing, fine blade finishing, fine pitch thread grinding, polishing.

 

Tool selection by hardness

HARDNESS ====== TYPE OF PROCESSING

W; T (THU; TUE)  Обд Roughing operations, straightening of abrasive tools, grinding of bearing balls.

S; R; Q; P (T2; T1; STZ; ST2) ⇨ Cutting, grooving, manual roughing operations, round external grinding, centerless grinding, intermittent surface grinding.

 

P; O; N (CT2; CT1; C2) ⇨ Preliminary round external and centerless grinding of steels, ductile iron. Profile grinding, intermittent surface treatment, honing and thread grinding of large-pitch parts.

O; N; M (ST1; C2; C1) Пло Flat grinding with segments and annular circles, thread grinding with circles on a bakelite bundle.

 N; M; L; K (C2; C1; CM2; CM1) ⇨ Finishing and combined round, external centerless and internal grinding of steel, flat grinding, thread grinding, sharpening of cutting tools.

L; K; J (CM2; CM1; M3) ⇨ Sharpening and fine-tuning of cutting tools equipped with hard alloys, grinding of hard-to-work special alloys, polishing.

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