Explain the arc casting process in detail
1. Preprocessing
1.) Raw material preprocessing: Steel liquid is ensured of internal quality through pressure blowing filtration, and impurity removal.
2. )Melting and static precipitation treatment: By adding scrap steel, iron liquid, and other materials into the steel liquid, a qualified ratio components is achieved.
2. Continuous casting mold
1. )Casting billet structure: Different types of materials, cross-sections, and structures are adopted meet the needs of different finished products.
2.) Material of continuous casting mold: High-quality stainless steel is used, which is beneficial to improve the surface smoothness and quality the continuous casting billet.
3. )Continuous casting billet nose cooling device: A multi-level pipe-type device is used to set a cooling water level directly the casting billet, ensuring the surface temperature and cleanliness of the continuous casting billet.
3. Continuous casting process
1. )Steel liquid entering the: Steel liquid enters the mold through the sharp nozzle and the liquid guide plate, forming a zero billet.
2. )Anti-boiling: While the steel liquid the mold, coal gas is blown downward, forming uniform bubbles on the surface of the steel liquid, preventing contact bubbles from appearing inside the casting billet and improving the surface quality.
3. )Function of the sizing device: Through the filtering effect of the sizing device, particles in the continuous casting billet are filtered, which helps to improve the quality of the casting billet.
4. )Mechanical cutting: The continuous casting billet is cut from the edge of the pouring nozzle, and the adjustment of the casting billet is at the junction of the casting billet.
4. Solidification
1. )Plate billet falling under the mechanical hand: The plate billet falls under the hand of the arc-shaped continuous casting machine, enters the water box, and uses water cooling to quickly cool, achieving a compact and dense grain boundary and martensite structure.
2. )Cooling water pool and billet cooling method: A cooling water pool and high-pressure cooling are used to ensure uniform cooling of the casting billet, leaving no such as inclusions.
5. Cutting
1. )Rotary cutting: After the continuous casting billet is cooled, it is cut and shaped by aary cutting machine passing through the arc-shaped continuous casting machine.
2. )Punching cutting: The casting billet passes through a small angle on the side of the cutting, and the cut part reaches a relative displacement through two squeezing actions up and down. This cutting method is cumbersome, but the cutting effect is better.
The above is detailed introduction to the process flow of the arc-shaped continuous casting machine, which generally includes preprocessing, continuous casting process, solidification, and cutting. Arc-shaped continuous casting is widely used for its efficient, economical, and safe characteristics, and has become one of the most important processes in modern steel industry.