Graphite Carbon Sleeves and Hot Rolling Bottom Rolls in The Hot Rolling Process

• Customization: Available
• Material: Graphite
• Refractoriness (℃): 1100-1200
• Shape: Sleeves
• Usage: Steel Industry
• Chemical Compesition: 99.93%
• Tonnage of Mold: 1mt-15mt
• Stand: GB3323-87
• Material Type: Graphite
• Type: Sleeves,Plate
• Transport Package: Seaworthy Packing
• Specification: As drawing
• Trademark: Seawoo
• Origin: China
• HS Code: 6815190090
• Production Capacity: 2000PCS

Product Description

The cooperation between graphite carbon sleeves and hot rolling bottom rolls in the hot rolling process is mainly reflected in the following aspects:

1. **Complementary Material Properties**: Graphite carbon sleeves, due to their excellent thermal and electrical conductivity, as well as corrosion resistance, serve as bottom roll materials in the hot rolling process. They effectively conduct heat, reduce heat accumulation, and improve thermal efficiency. At the same time, the layered structure of graphite gives it extremely high thermal conductivity in the plane direction, which helps optimize thermal management during hot rolling.

2. **Protective Role in Hot Rolling**: The application of graphite carbon sleeves on hot rolling bottom rolls can protect the rolls from the effects of high temperatures and complex atmospheres, extending the service life of the bottom rolls. Through chemical treatment and impregnation processes, the performance of graphite carbon sleeves can be further improved, reducing oxidation loss at high temperatures.

3. **Improving Hot Rolling Efficiency**: The combined use of graphite carbon sleeves and hot rolling bottom rolls can improve hot rolling efficiency. The high thermal conductivity of graphite helps to quickly transfer heat, reducing heat loss during hot rolling, thereby improving hot rolling efficiency.

4. **Reducing Wear and Maintenance Costs**: The self-lubricating properties of graphite carbon sleeves can reduce wear during hot rolling, lowering maintenance costs. This characteristic of graphite helps reduce friction and extends the service life of the bottom rolls.

5. **Application of Composite Materials**: By combining graphite with metals such as copper, composite materials with excellent comprehensive properties can be prepared, such as high strength, good ductility, and electrical conductivity. These composite materials can be used to manufacture hot rolling bottom rolls to enhance their performance.

6. **Process Optimization**: By optimizing the hot rolling process, such as controlling the orientation of graphite and the reduction process of aluminum, graphite/aluminum composite materials with high thermal conductivity can be prepared, which is very beneficial for thermal management applications.


 

Technical specifications:

 

Grade	UOM	Value
Max Grain Size	MM	≥0.8
Apparent Density	MIN	≥1.73
Flexural Strength	Mpa	16-25
Electrical Resistivity	Micro Ohm-m	7-7.5
Compressive Strengt	Mpa	32-35
Modulus of Elasticity	Gpa	/
CTE (XY)(25-525°C)	10-6/C	2.0-2.4
CTE (Z) (25-525°C)	10-6/C	/
Hardness	"R"	30"S"
Porosity	%	14
Thermal conductivity	K.Cal/h.m°c	140-190
Tensile strength	Mpa	20
Ash Content	%	<0.1