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Tungsten carbide rods factory,carbide flats,carbide inserts,customized TC products manufacturer–Hengyuan Carbide
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tungsten carbide rolls manufacturers
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  • tungsten carbide rolls
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tungsten carbide rolls

tungsten carbide rolls

 

  • reduce mill downtime, high rolling speed, increase productivity
  • made from virgin raw materials, a wide range of grade applications, HIP sintering
  • good surface finish for rolled product
  • good wear resistance, high strength and toughness, excellent red hardness and heat fatigue resistance
  • Non-destructive ultrasonic flaw detection, without sand hole, pore, cracks and inclusions

 
Tungsten carbide rolls are widely used in the production of wire rods, rebars and seamless steel pipes due to their good properties, which greatly improve the working efficiency of the rolling mill. According to the different working conditions of different stands and rolls, a variety of different grades of cemented carbide rolls have been developed.
 
Dimension of carbide roll rings

D(mm)d(mm)H(mm)
145-38087-26062-130

Tolerance of carbide roller rings

grade of toleranceIIIIIIIV
OD(±)0.020.050.100.15
ID(±)IT5IT6IT7IT8
H(±)0.030.10.200.5
  • radial runout of grooves<=0.013mm
  • radial runout of periphery<=0.013mm
  • end face runout<=0.02mm
  • end face planeness<=0.01mm
  • end face parallelism<=0.01mm
  • inner hole cylindericity<=0.01mm

 
Grade for tungsten carbide hot rolls

Grade

Co+Ni+Cr

%


WC

%


Density

g/cm3


T.R.S

Mpa


Hardness

HRA

Thermal
conductivity
Cal/cm.s.℃

Compressive
Strength

Mpa
Young's
modulus
of elasticity

KN/mm2
YGR20109014.49≥2400≥85.00.23400550
YGR2512.587.514.21≥2270≥83.00.223300540
YGR30158514.03≥2360≥83.00.23200530
YGR40188213.73≥2400≥82.00.23200430
YGR45208013.53≥2250≥80.50.183000480
YGR55257513.2≥2400≥79.00.172800420
YGR60307012.68≥2200≥78.50.162600300
YGH20109014.47≥2500≥86.00.23500560
YGH25128814.25≥2300≥84.00.213400550
YGH30158514.02≥2520≥83.50.23300540
YGH40188213.73≥2570≥83.00.193200500
YGH45208013.53≥2570≥82.00.183100480
YGH55267413.05≥2570≥81.00.173000450
GradeApplication
YGR20High wear resistance and corrosion resistance. Used in the last 1-2 stands of finishing mills.
YGR25High wear resistance and corrosion resistance. Used in the last 1-3 stands of finishing mills.
YGR30Good toughness, wear resistance, corrosion resistance and thermal crack resistance. Used in the middle and rear stands of finishing mills
YGR40Good toughness and thermal crack resistance, good for general purposes. Used in most stands of the finishing mills and in the rear stands of common mills.
YGR45Good toughness and thermal crack resistance. Used in the front stands of finishing mills.
YGR55Good impact resistance. Used in the stands of pre-finishing rolling mills for hot rolling ribbed steel bars and they can be machined with turning and milling.
YGR60Good impact resistance . Used for hot rolling ribbed steel bars and in the first and second stands of prefinishing rolling mills.
YGH20Maximum hardness, best wear resistance in the series. Used in the last 1-2 stands of good high speed rolling mills for rolling common and hard steel bars.
YGH25Higher wear resistance, moderate impact resistance in the series. Used in the last 1-3 stands of good high speed finishing rolling mills for rolling common and hard steel bars.
YGH30Moderate wear resistance and impact resistance, good for general purposes. Used in the last 1-4 stands or all stands of finishing mills.
YGH40Best for general purposes. Used in the front stands of good rolling mills and in the rear stands of common rolling mills.
YGH45Used in the first and second stands of finishing rolling mills and in the stands of pre-finishing rolling mills. For every stand of rolling lines for low speed rolling, low precision and unstable operations.
YGH55Maximum binder content in YGH series, good toughness and thermal crack resistance. Used in the stands of pre-finishing rolling mills and for roll rings for hot rolling of ribbed steel.

the manufacturing process for tungsten carbide roll

powder milling → formula according to grade→ wet grinding → mixing → crushing → drying → sieving → adding forming agent → redrying → sieving to obtain a mixture → granulating → pressing → forming → Sintering →preforms→rough machining by flat grinding→non-destructive ultrasonic flaw detection →finishing machining by flat grinding→internal grinding →external grinding→chamfering→notching machining→laser marking→inspection →packing → Storage



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