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Professional Tungsten Carbide Roll Rings / TC Roll Rings For High Speed Wire

Categories Tungsten Carbide Rings
Brand Name: VKD
Place of Origin: zhuzhou
MOQ: negotiate
Price: Negotiable
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 20tons per month
Delivery Time: 15-20 working days
Packaging Details: paper, then paper boxes, then exported wooden cartons or paper cases,or packed as customers'requirement.
Place of Origin:: Hunan, China (Mainland)
Brand Name:: LMM tungsten carbide roller
Model Number:: LMM0126 tungsten carbide rings rolls
Application:: high speed wire
Shape: round
Material:: Wc-Co and Wc-Co-Ni-Cr
Dimensions:: 10-100mm
bending strength:: 2200Mpa
Chemical Composition:: desgin
Product name: Dimensions and precision of finished carbide roll rings
impact toughness: (4-6)*106J/m^2
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Professional Tungsten Carbide Roll Rings / TC Roll Rings For High Speed Wire

professional TC roll rings of finishing rolling mill (1.2-2.0)mm tungsten carbide pellet


cemented carbide roll rings (also known as tungsten carbide roll ring) possesses good thermal conduction property.Compared with other materials,it is much better in terms of heat-resistance, wear-resistance and strength.What ’s more,its hardness reduces a little under the condition of high temperature.So ,the cemented carbide roll rings is invented with the ap-pearance of
high speed wire rod mill.With the development and improvement,it is widely applied in the production of high speed wire,bar and deformed steel bar.
As far as the material for our products,there are two series as Wc-Co and Wc-Co-Ni-Cr which possess the good compre-hensive mechanical properties.The bending strength and impact toughness reach 2200 Mpa and(4-6) x106J/ m'respectively.Its hardness and wear resistance come from tungsten carbide (Wc) while the toughness and strength depend on the binding agent
(Co-Ni-Cr).
At present,the finishing mill is generally composed of 8- 10 stands.Because of the big size of fracture surface of rolled part,the collar on the front stands of finishing mill may resist heavy duty and
strong impact.Thus,the high hardness and good thermal fatigue resistance are the primary factors,which are prior to wear-resistance.While there is low load and impact for therear stands,
we shall pay more attention to the wear-resistance and thermal fatigue resistance of roll rings.
At present,the finishing mill is generally composed of 8- 10 stands.Because of the big size of fracture surface of rolled part,the collar on the front stands of finishing mill may resist heavy duty and
strong impact.Thus,the high hardness and good thermal fatigue resistance are the primary factors,which are prior to wear-resistance.While there is low load and impact for therear stands,
we shall pay more attention to the wear-resistance and thermal fatigue resistance of roll rings.
GradeChemical
composition
Mechanical propertiesPhysical properties

Co+Ni
%


WC
%
Hardness
HRA
Transveres rupture
strength
(Sample B)
MPa
Compressive
Strength
MPa

Young's
modulus of
elasticty
KN/mm2
Density
g/cm3
Thermal
conductivity
Cal/cm sec/℃


YGH201090≧86.0≧2500350056014.2-14.50.2
YGH251288≧84.0≧2300340055014.0-14.30.21
YGH301585≧83.5≧2520330054013.8-14.20.2
YGH401882≧83.0≧2570320050013.4-13.90.19
YGH452080≧82.0≧2570310048013.3-13.90.18
YGH552674≧81.0≧2570300045012.6-13.20.17
YGR201090≧85.0≧2400340055014.2-14.80.2
YGR2512.587.5≧83.0≧2270330054014.0-14.30.22
YGR301585≧83.0≧2360320053013.8-14.30.2
YGR401882≧82.0≧2400320043013.5-13.90.2
YGR452080≧80.5≧2250300048013.4-13.90.18
YGR552575≧79.0≧2400280042012.9-13.40.17
YGR603070≧78.5≧2200260030012.6-13.10.16

GradeRecommended applications
YGH20Maximum hardness ,excellent wear resistance in the series.Used in the last 1-2 stands of good high speed line mills for rolling common and hard bars.
YGH25Higher wear resistance,moderate impact resistance in the series.Used in the last 1-3 stands of good high speed line mills for rolling common and hard bars.
YGH30Moderate wear resistance and impact resistance,good for general purposes.Used in the last 1-4 stands of finish rolling mills.
YGH40Best for general purposes.Used in the front stands of good mills and in the rear stands of common mills.
YGH45Used in the first and second stands of finish rolling mills and in the stands of prefinish rolling mills.For every stand of the rolling lines for low speed rolling,low precision and unstable operation.
YGH55Maxmum binder content in YGH series,good toughness and crack resistance.Used in the stands of perfinish rolling mills and for rolling screw thead steel

GradeRecommended application
YGR20High wear resistance and corrosion resistance.Used in the last 1-2 stands of finish rolling mills.
YGR25High wear resistance and corrosion resistance.Used in the last 1-3stands of finish rolling mills.
YGR30Good toughness,wear resistance,corrosion resistance and crack resistance.Used in the middie and rear stands of finish rolling mills.
YGR40Good toughness and thermal crack resistance,dood for general purposes.Used in the most stands of finish rolling mills and in the rear stands of common mills.
YGR45Good toughness and thermal crack resistance,Used in the front stands of finish rolling mills.
YGR55Good impact resistance.Used in the stands of prefinish rolling mills for hot rolling screw thread steel bars and they, can be machined with turning and milling.
YGR60Good impact resistance and toughness. Used for hot rolling screw thread steel bars and in the first and second stands of prefinish rolling mills.

The allowable deviation of carbide roll rings

Radial runoutofgroove ≤ 0.013mm
Radial runout of periphery 0.01 3mm
End face runout 0.02mm
End face planeness 0 .01mm
End face parallelism 0.01mm
Innerholecylindericit 0.01mm


Roughness of carbide rolls

inner hole roughness 0.4 u m
periphery roughness0.8 u m
end face roughness 0.4 u m


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