UHMW PE doctor blade Cleaning doctor blade for rollers

Brand : XINXING
UHMW PE doctor blade Cleaning doctor blade for rollers
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UHMW PE doctor blade Cleaning doctor blade for rollers


XINXING UHMWPE suction box covers and blades are made of UHMW-PE material .
UHMW-PE dewatering element is known for its high dry-film lubricant content.This produces an extremely smooth surface, most importantly resulting in a low friction coefficient a low level of adhesion. No adhesion Excellent chemical resistance

For machines with speeds up to 800 m/min
XINXING dewatering elements in ultra high molecular weight polyethylene set themselves apart by the special sinter press procedure over a long period used to produce them, as well as an extremely high molecular weight plus their extra additive that is specifically tailored to paper machines.All these benefits ensure what is an outstanding service life for plastic coupled with a low coefficient of friction.

Advantages:
The measured co-efficient of friction for  material is 0.08 which comp- ares very favouralby with other plastics where the friction is between 0.16 and 0.20,or cross grain wood of 0.3.
Faster machine speeds can be achieved through the low coefficient of friction.˙ Less motive power required to drive machines.
The material has a high impact strength and cannot break or splinter . Temperature resistent to 1000C.


Perforation:

Size:
suction box cover, made to your specification to the max.
Length is 1200mm, width is 1000mm, thickness is 60mm
Other size can be processed.
Color: White, yellow, blue, orange, green etc, other color can be customized.

Application
On paper and pulp industry
At machine speeds of up to approx. 800 m/min 



Assembly
UHMWPE dewatering elements for paper machines have a high level of thermal expansion. They must therefore be installed in such a way that enables the strips or covers to expand without restriction (T-bars, corner strips, dovetail guides, screws in elongated holes). The base frame support must have a grid of approx. 250 mm to ensure flawless functionality for our covers. This support must extend to the underside of the cover to ensure it has a flat installation surface.
Data sheet

Properties Unit Method
Density g/cm3 527 / D 792 0.93-1
Tensile strength at yield MPa 527 / D 638 17
Tensile strength at break MPa 527 / D 638 40
Elongation at break % 527 / D 638 >50
Modulus of elasticity in tension MPa 527 / D 638 650
Modulus of elasticity in flexture MPa 178 / D 790 800
Ball indentation hardness MPa 2039/1 35
Impact Strength kJ/m2 179 / D 256 No br.
Creep rupture strength after 1000 hrs with static load MPa

Time yield limit for 1% elongation after 1000 hrs MPa

Coefficient of friction against hardened and ground steel p=0,05 N/mm2, v = 0,6 m/s -
0.29
Wear conditions as above um/km

Crystalline melting point DIN 53 736 plus 135
Glass transition temperature DIN 53 736
Heat distortion temperature
Method A
Method B


     ℃

     R 75
     R 75

  42~70

Max. service temperature       

short term

long term

     ℃


plus 120
plus 90
Coefficient of thermal conductivity W/(m K)
0.41
Specific Heat J/(g K)
1.84
Coefficient of thermal expansion 10-5/K DIN 53 483 / D 696 20
Dielectric constant at 105 Hz
DIN 53 483 3
Dielectric loss factor at 105 Hz
DIN 53 483
Specific volume resistance Ω cm DIN 60093 1014
Surface resistance DIN 60093 1012
Dielectric Strength 1mm kV/mm ASTM 149 45
Tracking Resistance
53 480 KA 3c, KB>600,KC>600
Moisture absorption: Equilibrium in standard atmosphere (plus 23℃ / 50% relative humidity) % 62 0.01
Water absorption at saturation at plus 23℃ % 62 0.01
Resistance to hot water, washing soda

resistant
Flammability according to UL standard 94

HB
Resistance to weathering

Natural:

not resistant

Black: resistant


UHMWPE water suction box panel