Alumina ceramic lined equipments, buy Alumina ceramic Wear Solution for dive pulley lagging for rollers,good quality and competative price on China Suppliers Mobile

Product Details

Dive pulleys are the key components for power transmission. And belt dive pulleys with rubber coating are usually used for transporting the mixture of coal and ore and usually under continuous operation for long time. This requires dive pulley to be highly abrasion resistant,highly stretching resistant and highly tear resistant . Dive pulleys can also be affected by weather if they are working outdoor(like rusting,sludge). And traditional Dive pulleys with rubber coating are easy to be worn down,slipping and damaging the belt which will decrease the conveyor belt load and the equipments need to be changed frequently .

ⅠProduct Structure

Under the driving of roller, the frictional force between the mechanical driving belt and the surface of dive pulley needs increasing to reduce wear between the surface of pulley and conveyor belt when they are slipping past one another, which will provide stable tractive force and prolong service life time of belt and dive pulley. KINGCERA has developed the dive pulley with ceramic –rubber coating on which the corundum ceramic with false compartment is as abrasion resistant layer to increase frictional force on its surface and abrasion resistant rubber polyurethane as vulcanization layer, both of which are bonded together with imported adhesives of high strength.

Patent NO: ZL2005200521039

Small dots on the surface increasing frictional force Grooves on the bottom increasing bond forces of vulcanizing

ⅡProduct Features:

l Excellent wear resistant property

l great friction resistance ,no belt misalignment no slipping

l automatic drain contamination,mud removing

l service life 6 times that of normal rubber coating dive pulley

Ⅲperformance index of products

1 Major technical specifications of Al2O3:

Item	Index
Content of alumina	≥95%
Density	≥3.62 g/cm3
Rockwell C hardness	≥85 HRA
Impact strength	≥850 Mpa
Breaking temper	≥4.8Mpa·m1/2
Bending Strength	≥290Mpa
cold compressive strength	≥850Mpa
abrasion resistance	(p=76N n=800 round/min t=30min)≤0.0002g
Thickness of ceramic	8mm

2 Major Specifications for the Rubber

Item	index
Tensile strength(Mpa)	≥7.5
Elongation at Break(%)	≥300
Tear Strength (%)	≤16
Bond strength between rubber and ceramic (Mpa)	≥9.0
Aging time of rubber	≥15 years
peel strength between ceramic and rubber	4.5Mpa
peel strength between rubber and equipment	4.5Mpa
Thickness of rubber	8mm

3 Technical Specifications for glue

Item	Index
format	twin-pack
Appearance	Thick liquid in silver gray
Density	2.0
weight(twin-pack)(KG)	5KG
hardness(Shore-D)	80
shear strength (Mpa)	12
Temperature range (℃)	-40~150
coefficient of heat conductivity(W/M.K, 25℃)	0.6

4. compare of wear resistant ability

Based on the test of Powder Smelting Research Academy of Central-South Industry University, the compare test result on wear resistant ability in Jingcheng abrasion-resistant ceramic,manganese steel and high-chrome cast iron is shown in the table below

abradedmass

Condition of

test

Test

object

Jingcheng abrasion-resistant ceramic

Manganese steel

High-chromium cast iron

p=76N

n=800 round/min

t=30 min

0.0002

(g)

0.0532

(g)

0.0343

(g)

In the condition of p=76N, n=80round/min, t=30, calculating in abraded mass, the abrasion-resistant ability of abrasion-resistant ceramic produced by our company is 266 times that of manganese steel, and 171.5 times that of high-chrome cast iron.

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