centrifugal cast hot bridle roller

　　




Horizontal furnace annealing furnace roller,Vertical annealing furnace furnace roller:
Used for continuous annealing line and galvanizing line horizontal annealing furnace, under the hydrogen nitrogen protective environment, the furnace temperature is about 700℃--1000℃，to complete heat treatment process by transporting lenient plate with even rapid，the diameter is 100--500mm,centrifugal casting for roll body, precision casting for journal and end bell, forging for shaft head.
Common used steel number is: shaft head (SUS304, 1Cr18Ni9Ti etc ),roll body and bell end ( ZG30Cr26Ni12、ZG40Cr25Ni20Si2 ).
 
 
The production process of each section in the continuous annealing furnace is different, and the types of furnace rolls required are also different. The most representative ones are the heating section, slow cooling section, and fast cooling section with temperature changes. 1) Furnace rolls in the heating section: Hesitation The temperature of the strip steel in the heating section is very high, so furnace rolls with strong anti-deviation ability must be used. At this stage, the furnace rolls should have good centering ability for both wide and narrow materials , but also effectively prevent the generation of heat scoop. Double-step tapered rolls can meet these requirements. This kind of furnace roller can not only prevent deviation and ensure the requirements of centering, but also can prevent thermal bending by adjusting the taper and length of the furnace roller. 2) Furnace rolls in the slow cooling section: After the strip steel enters the slow cooling section, the temperature decreases, and the strip steel deviation can be prevented by optimizing the taper, so the single-step taper furnace rolls can be selected. 3) Furnace rolls in the fast cooling section: After the steel strip enters the fast cooling section, it has been cooled to about 500°C. It has high strength and can be controlled by tension to prevent deviation. Therefore, crown rolls or flat rolls can be selected. When the strip steel is in the annealing furnace, the temperature in each section of the furnace is different, so the taper of the selected furnace rolls is different. At the same time, the self-weight of the strip steel also has a certain influence on the selection of the furnace rolls, so the above factors should also be considered.
 
With the development of my country's metallurgical industry for many years, the demand for furnace rollers is also increasing. The furnace roll industry has come a long way, with great improvements in performance and safe use. When choosing, we must pay attention to choosing the right equipment.