Spun Cast Rolls for Plate Heating Furnace

• Condition: New
• Certification: CE, RoHS, GS, ISO9001
• Standard: DIN, ASTM, GB, ANSI
• Customized: Customized
• Material: Alloy
• Application: Cgl (Continuous Hot DIP Galvanizing Line),Plating
• Model NO.: Spun cast rolls for plate heating furnace
• Surface Roughness: Ra6.3
• Machining Tolerance: +/-0.01mm
• Transport Package: Wooden Case
• Specification: Outer diameter: 55mm-2000mm or customized
• Trademark: HEXIN
• Origin: China
• HS Code: 85149090
• Production Capacity: 5000pieces/Year

Product Description

Qingdao Hexin Machinery Co., Ltd. are professional Centrifugal Casting Sink Roll for Continue Galvanizing Line, Centrifugal Casting Sink Rolls, Centrifugal Casting Rolls, Stabilizer rolls, Furnace rolls for plate heating furnace,  Rolls for CAL, Water cooled rolls, Coated rolls manufacturer from China.

rolls for roller hearth slab reheat furnaces:
Hearth rollers are indispensable processing equipment in the steel plate smelting and production process to ensure the requirements of steel plate production. The bottom roll is a typical centrifugal casting pipe fitting, and it is one of the important parts for supporting and transporting plates in metallurgical equipment. It is widely used in steel plate continuous casting and rolling production lines.
During the rolling process, the steel billet needs to be continuously and stably heated to the rolling temperature of 1050-1150 ºC in the furnace first, and the steel billet is stably supported by hearth rollers to ensure smooth and uniform conveying. Since the middle section of the bottom roll is directly installed in the billet calciner, the temperature of the furnace gas during the production process is as high as 1150 °C, and high-temperature alloy materials such as ZG45Cr28Ni48W5Si2 are generally used. At the same time, since the material support part in the middle of the bottom roll is directly installed in the furnace, and the cone section and the bearing support part are respectively installed in the furnace wall and outside the tempering furnace, the temperature gradient of different parts of the bottom roll is very large, therefore, Hearth rolls are generally made by welding cylinders. In order to reduce the combustion loss on the inner surface of the cone, an insulation board is designed inside the cone. In order to ensure the smooth transportation of high-temperature slabs, it is required that the roller shaft is not deformed, and the outer roller ring is heat-resistant and wear-resistant.
The main features of furnace roller products are high temperature resistance, corrosion resistance, wear resistance, impact resistance, easy cutting, welding and so on. Compared with similar heat-resistant steel products, the service life is 1-3 times that of similar products, and the cost is 5%-15% lower than similar materials. It can be used continuously at high temperature and has good heat resistance and high temperature resistance. Good temperature resistance, repeated use is not easy to produce thermal cracks, and the maximum operating temperature can reach above 1400 °C.
Furnace rolls are mainly used for heat treatment of plates. Its manufacturing requirements are high, and the requirements for safety, reliability and high temperature resistance are high. The material and performance of the furnace roller directly affect the operating efficiency. The quality of the furnace roller directly affects the surface quality of the product. If traditional graphite carbon sleeves and ceramic coated rollers are used, phenomena such as roller surface oxidation, furnace roller knots, and pineapple loosening are prone to occur, which will affect normal production activities. Quartz ceramic hollow roll has the characteristics of high strength, high temperature resistance, small thermal expansion, good chemical stability, stable high temperature performance, no deformation, smooth and delicate surface, and good wear resistance. Replacement operations can be avoided, efficiency can be increased, and product surface quality can be improved. And long service life, long-term use is not easy to wear and tear.


      Rolls for roller hearth slab reheat furnaces usually uses normalizing furnace, glowing furnace. Under hydrogen nitrogen protective atmosphere, furnace bottom roll temperature is about 900 degrees in heat treatment furnace, its role is to evenly and rapidly transport wide and thick plate in order to complete the heat treatment process.
 

Item	Spun cast rolls for plate heating furnace
Process	Centrifugal/spun casting method for roll body, precision casting of assembly shaft head.
Material	316L,316,HK,HT,HU,HP,HH,ZG40Cr25Ni20Si2,ZG14Ni32Cr20Nb,ZG45Ni48Cr28W5Si2.
Application	The heat treatment furnace roll are usually used for normalizing furnace and hardening furnace, under the hydrogen nitrogen protective environment, Furnace temperature is about 900 ºC. CGL (Continuous hot dip galvanizing line),Plating aluminizing line, Plating silicon line.
Specifications	Outer diameter: 55mm-2000mm Length: as per your request
Test	Chemical analysis by spectrometer for each heat,eddy current test,pressure test ,thickness test , PT 100%(liquid penetrant test),VI(visual inspect)100%,dimensional check.
Products	Sink rolls Stabilizer rolls Furnace rolls for plate heating furnace Rolls for CAL Water cooled rolls Coated rolls

About us

Qingdao Hexin Machinery Co., Ltd. is professional for manufacturing, sale and research of high temperature alloy centrifugal cast tube, Heat resistant steel precision castings and sand mold casting.
The main products are: Ethylene cracking furnace furnace tube, reformer furnace tube, all kinds of casting alloy elbow, casting tube sheet, hook, hanger, bracket and other heat resistant casting products. Furnace rollers, radiant tubes, sink roll, stabilizing roll, support arm and sleeve and other heat resistant alloy used for continuous galvanizing line(continuous annealing line), all kinds of heat treatment fixtures used for heating processing equipment, like tray, basket, fan and so on. Widely used for famous brand heat treatment equipment, such as IPSEN, AICHELIN, FONTON, etc.
We committed to the strict quality control and strictly implement ISO9000 series quality management system, Ensure the castings in each process of each station "zero defect" production, Quality has won the acceptance of customers at home and abroad.
Welcome to view our website: hexinmachineryqd.en.made-in-china.com