What is the Material of the High-Speed 30-50mps TMT Pinch Roll in the TMT Bar Mill?Author : hani Time : 2023/01/04
What is the Material of the High-Speed 30-50mps TMT Pinch Roll in the TMT Bar Mill?
Tungsten carbide or cast iron is used in bar mills for TMT pinch rolls.
All the materials listed are good from the point of view of TMT pinch roll wear etc. Personally, I would go for carbide but only if you have sufficient cooling and the ability to machine carbide at your site.
The other thing to consider here is the drive capability and how it will be affected by changing the material. For example, Carbide has a much higher density than tool steel meaning for the same size roll there is a higher mass. If you really wanted to make this change then it is necessary to think about the motor power for when the roll is changing speed, the strength of the coupling to be able to take the extra torque, and many other things. It sounds simple to just change the material but can end up being very expensive for only minor gains.
Technical Requirements for TMT Pinch Roll
(1) High-temperature resistance
The TMT pinch roll bears a temperature of about 550-650°C; the surface of the pinch roller is required to be resistant to high temperatures and alternating cold and heat.
(2) Corrosion resistance
It is required that the pinch roller surface is resistant to repeated erosion and cooling by circulating water with high alkalinity.
(3) Do a dynamic balance test
After the pinch roller is manufactured, a dynamic balance test must be done, the balance accuracy level is required to be G6, and a dynamic balance test report must be submitted.
Application Range of bar
Bars are widely used in the fields of road construction, housing construction, and urbanization construction. The bar rolling mill is based on the different product uses and specification requirements. Under the corresponding rolling process requirements, the raw metal blank is rolled to change its shape. Processing equipment for size, organization, and performance.
Bar rolling basically adopts a short stress line rolling mill. This type of rebar rolling mill is a kind of rolling mill without an archway. And this structure is different from the traditional archway rolling mill. The rolling stress loop is shorter than that of the traditional rolling mill, the area of the stressed parts is larger, and the load is relatively uniform.