Polyamide - 6 block shock-resistant (Merkanit  "Ó" ). The modified type of polyamide - 6 with increased durability. New catalytic system provides
increased durability and stability under low temperatures.
- Merkanit  "Ó" - is a constructional material from group of
Polyamides. It Is produced as rectangular plates, cartridges,
cylinders and other products by methods of free and centrifugal
moulding. Products from preparations are received by machining.
- Merkanit  "Ó" is intended for manufacturing bearings ,
cartridges , valves , pistons , groondbooks, gear wheels (low loaded),
Details of sealing bush of pumps and pipeline armature and others
Products.
- Merkanit  "Ó" is applied instead of bronze , fluoroplast and textolite.
Shockproof Merkanit-B filled with silicone is necessary at manufacturing: bearings and support of sliding, sliding directing, compacting.
Area of application of shockproof Merkanit-B filled with silicone: machine tools and motor-technical equipment, aircraft, engines of internal combustion, hydroarmature, hydraulic engineering constructions, submerge pumps.
Merkanit-B "Ó" filled with silicone operates in environments where there is no greasing or its supply is complicated. Perfectly operates in the air environment, water (including sea), oils, gasoline.
Merkanit-B with molybdenum oxide - one of the latest achievements of technological progress. This material operates three times better, than Merkanit-B filled with graphite.
Merkanit-B "Ó" filled with silicone is perfectly processed by any mechanical tool.
Operational modes:
Operative speed, m/s |
Loading, ÌÐà |
Less than 10,0
Less than 1,0
Less than 0,3
Less than 0,05 |
0,1
3,0
15,0
60,0 |
Working temperature: from -50°Ñ to +100°Ñ.
Characteristics of a material:
| The name |
Parameters |
Test methods |
| Merkanit marks MK |
Merkanit marks ÌÊ-9 |
Merkanit marks GK-6 |
Merkanit marks MLD |
| Appearance |
Merkanit is made in the form of disks, blocks, plates, a core, pipes, etc. in the any size |
According to item 9.2 of technical specifications |
| Without having chopped off and bowls, from light yellow up to cream |
Without having chopped off and bowls, from light grey up to black |
|
Number of interstice in the size no more than 1,5 mm on 1000 ìì2 of a surface no more, pieces
|
2-3 |
- |
5 |
- |
According to 9.5 items of technical specifications |
|
Bending pressure at the size of a deflection equal of 1,5 thickness of a sample, MPa, not less
|
82 |
87 |
95 |
97 |
GOST 4648 |
|
Density, kg / m3
|
1120-1160 |
1140-1180 |
1160-1200 |
1160-1200 |
GOST 15139 |
|
Temperature of fusion, °C
|
200-210 |
210-213 |
220-225 |
220-230 |
GOST 21553 |
|
Durability at break, MPa
|
70 |
75 |
85-95 |
85-95 |
GOST 11262 |
|
Impact strength on Sharpi, KJ/m |
- |
- |
50-70 |
- |
GOST 4647 |
|
Pressureat compression at relative deformation of 25 %, MPa
|
120 |
125 |
120-140 |
140 |
GOST 4651 |
|
Hardness on Brinell, MPa
|
80 |
85 |
140-150 |
160-170 |
GOST 4670 (ÈÑÎ 2039-1) |
|
Temperature of a softening at a bend at a pressure1,8MPa, °C
|
100 |
100 |
100-120 |
120-130 |
GOST 12021 |
|
The maximal water absorption for 24 hours, %
|
1,0-1,5
6,5-7,0 |
0,15 |
1,0-1,5
6,5-7,0 |
1,0-1,5
6,5-7,0 |
GOST 4650 |
|
Ñoefficient of heat conductivities at room temperature,Watt/m °C
|
0,29 |
0,28 |
0,37-0,42 |
0,3 |
GOST 23630.2 |
|
Average factor of linear thermal expansion on 1 °C in an interval of temperatures:
from - 40 °C up to +20 °C
From +20 °C up to + 60 °C
From +60 °C up to + 90 °C |
8,0•10-5
9,0•10-5 |
8,0•10-5
9,0•10-5 |
7,0•10-5
12,0•10-5 |
8,0•10-5
9,5•10-5 |
GOST 15173 |
|
Tangent of a corner dielectric loss at frequency of 105 Hz
|
0,02 |
0,03 |
0,02-0,03 |
0,02-0,03 |
GOST 22372 |
|
Dielectric permittivity at frequency
105 Hz
|
3,5-3,6 |
3,5 |
3,5-4,0 |
3,6 |
GOST 22372 |
|
Factor of friction on steel
|
0,15-0,2 |
0,08-0,1 |
0,04-0,08 |
0,01-0,03 |
GOST 11629 |
|
Abrasive deterioration, mg / m3
|
7-9 |
3-5 |
1,1-1,4 |
0,4-0,6 |
GOST 11012 |
| The note 1. As agreed with the customer on the basis of the contract the sizes can be established. Thus the deviation of the sizes of finished articles from coordinated should not exceed ±1%.
The note 2. It is supposed manufacturing blocks for several details by their subsequent scission by the customer.
The note 3. As agreed with the customer a product can be delivered raw or with preliminary machining. |
Material is made as blocks in the sizes 1000 õ 500 mm and thickness from 5 up to 500 mm, and also as cores, the cartridge in diameter from 20 up to 600 mm.
For removal of internal tension and in avoidance bursting it is recommended complex processing of large products to divide on simple operations, in intervals between which a material to stack for 48 hours in water.
Merkanit  "Ó" possesses by good dielectric and damping properties.
Factor of friction on steel and bronze with greasing
(water, oil) 0,04 - 0,08. Deterioration for 1000 hours makes works 0,10 mm.
Bearings from Merkanit  "Ó" at presence of greasing can operate at
rounded speeds up to 15 m/s and specific pressure up to 50
kg*ñ/ñm 2
Merkanit  "Ó" is self-lubricating and operates in environments
where there is no lubricant or its supply is complicated. Perfectly operates in water including sea, oils, gasoline
Merkanit  "Ó" is steady against influence of
Hydrocarbons, oils , gasoline , spirits , ketone, ethers , alkalis and
weak acids .Operates in tropic, is nontoxical, corrosion-resistant.
It is unstable in cresol, the phenols, concentrated mineral
acids, ant and acetic acid.
Merkanit  "Ó" is exposed to all basic kinds of
machining processing on metal-cutting machine tools - to cutting, to turning,
to drilling, milling and grinding. Recommendations on processing
are resulted in the table.
Modes of processing of Merkanit-B "Ó"
| the Kind of processing |
the Cutting tool |
the Mode of cutting |
the corner of sharpening of a drill |
| submission mm / about. |
speed, mm / mines |
| Drilling |
Drills cylindrical and spiral |
0,4 - 0,8 |
30 - 70 |
80 - 120 |
| Cutting |
the Tape saw, a disk saw |
Distance between teeth 3 - 6 mm, 3-8 mm |
1200 - 1500,1400 - 1800 |
Thickness õ width of a saw, mm:1,5 õ 2,0; 2,0 |
| Grinding |
Circles cotton and cloth |
1,0 - 1,5 m / min |
20 - 30 |
- |
| Milling |
Mills for processing nonferrous metals |
0,2 - 0,4 |
200 - 400 |
the face-to-face corner of a working surface 25 - 28 |
| Turning processing |
Cutters cutting, through passage, boring |
0,1 - 0,3 |
180 - 250 |
the face-to-face corner of a working surface 15-
20 |
In a cold season before
processing it is recommended to sustain a day in a heated room.
Merkanit in the chemical industry
Merkanit it is widely used in spheres on processing raw material, oil-extracting
The industries, combines on manufacturing and processing of cellulose (paper):
- pumps (blades , impeller , cogwheels , bearings of sliding and rolling, cuffs of omentums, cases of rotors);
- filters (wheels and. Naves);
- mesh tables;
- batcher , separators (loose leaves of units of friction, the case).
Merkanit in handling
In this industrial branch Merkanit it is used: - in automobile lifts (leaders gear wheel, cartridges and loose leaves, nuts);
- in cranes and cranes - beams (wheels, rollers, holders, loose leaves of basic and directing wheels);
- tape conveyors (bearings of drums and rollers);
- in conveyors (sliding bearings for regulating valves, pillows of system of a suspension bracket);
- in motor transport (loose leaves of spherical support, cartridges of levers and arms, persistent
Elements of a suspension bracket).
In particular in loader LOGLIFT from Merkanit sliding pillows are made and
the central bearing rolling.
Merkanit in metal manufacture
In an iron and steel industry Merkanit is used in such equipment as:
- the rolling mill;
- manipulators blooming;
- machines for moulding;
- sheeting machines;
- cranes - beams;
- cranes;
- trolleys;
- conveyors;
- mud pumps.
In this equipment from Merkanit such elements are made:
- Elements of coupling of a support of beds;
- Diving and clamping belts;
- The cartridges directing, bibbs, disks, half coupling;
- Loose leaves of a spindle, worm gear wheel, reducers;
- Bearings, wheels of cranes - beams, rollers;
- Fingers, crackers, a sled, rings, washers, crackers;
- Loose leaves of persistent and directing wheels of traction cables;
- Wheels with ball-bearings, holders;
- Loose leaves and hoops brake, cylinders;
- Spherical cartridges, branch pipes;
- Directing drilling and boring capping;
- Details of condensation.
Use of Merkanit in shipbuilding
In shipbuilding and ship repair Merkanit from approval of the Register, it is applied from above 30 years to manufacturing:
- the bearings directing, the loose leaves of units of friction working at loading up to 25 ÌPa, pulleys, blocks and rollers of load-lifting mechanisms with traction effort up to 30 tons;
- cases, arms, naves of wheels and other details of constructional purpose{assignment} to which increased requirements on shock stability are showed, including at temperature up to a minus 40 hailstones With;
- gear wheel, gear and worm wheels, asterisks with the purpose of sharp decrease{reduction} in noise level and vibration (up to 15 dB);
- details of condensation and cuffs for systems of a high pressure (up to 500 tam.) and many others.
Use of Merkanit in agricultural machinery
- In combines and drives of reducers in quality gear wheel and asterisks;
- screw of food delivering;
- impeller pumps for watering; in separators and armature of a detail of condensation in exchange fluoroplast;
- wheels and naves of carriages, blocks of load-lifting mechanisms, conveyors, cranes, conveyors;
- bearings of sliding in seeders, harvesters, cultivators, mowers.
|
