High-quality leveling machines

This is a highly professional technical text involving mechanical engineering and foundry processes. Here is the accurate and industry-standard English translation:
The leveling machine is a common piece of equipment in sheet metal processing. Its model selection primarily depends on the thickness, material, and specific requirements of the strip being leveled. The thicker the material, the higher the structural rigidity required, resulting in fewer rolls, larger roll diameters, and greater power output (assuming a constant width), and vice versa.
Different materials used in leveling machines impose different requirements on machine tool castings. For alloy castings, the structural requirements include the following aspects:
Reasonable wall thickness: The primary requirement is to ensure adequate alloy fluidity, while avoiding excessively thick walls.
Uniform wall thickness: Walls should be as uniform as possible. Hot spots are prone to defects such as shrinkage cavities, porosity, and coarse grains.
Rational wall connections: Structural fillets must be incorporated. Transitions between thick and thin walls should be smooth, and connections should avoid intersections and sharp corners.
Feeding considerations: Thick sections of the casting should be designed to facilitate risering (feeding) to compensate for shrinkage.
Avoidance of large horizontal surfaces: Large flat surfaces should be minimized.
Unobstructed shrinkage: The design must prevent any hindrance to casting shrinkage.
Foundry processes also impose structural requirements on machine tool castings, including:
Simplifying the casting structure and reducing the number of parting lines.
Ensuring parting lines are as flat and straight as possible.
Minimizing or eliminating the use of loose pieces (sweep boards) during molding.
Minimizing or eliminating the use of cores.
Incorporating structural draft on vertical walls.
Considering core fixing, venting, and cleaning.
Leveling machines are primarily used to straighten sheet metal of various specifications, as well as cut-to-length sheets. They are suitable for leveling both cold-rolled and hot-rolled steel sheets. Due to their convenient and simple operation, their applications span multiple industries, including machinery, metallurgy, building materials, chemicals, electronics, electric power, and light industry. They have become indispensable essential products, particularly in shipbuilding, rolling stock, boiler and bridge manufacturing, and metal structure fabrication plants.