The quality of continuous casting slab determines the quality of final product, so in a broad sense, the quality of continuous casting slab refers to the severity of slab defects allowed by qualified products. Its meaning includes four aspects: The first is the purity of billet: it refers to the quantity, shape and distribution of…
Properties And Considerations Of Manufacturing By Continuous Casting Continuous casting manufacture is different from other metal casting processes, particularly in the timing of the process. In other casting operations, the different steps to the process such as the ladling of metal, pouring, solidification, and casting removal all take place one at a time in a…
The pressure water film copper mould tube is as follows: four steel plates are fixed at the lower end of the copper mould tube , water is sprayed from the slits processed on each steel plate, and the steel plate is placed in line with the copper mould tube surface, and left between the surface…
The curved copepr mould tube is developed from the perspective of heat transfer, based on the air gap, and is analyzed by thermal deformation of the mold and shrinkage of the billet. The basic features are as follows: The copper mould tube consists of three parts viewed from the axial direction. The upper part has…
Requirements for copper mould tube performance: Good thermal conductivity, condensation of liquid metal in the crystallizer, copper plate, copper tube work, the surface of the inner cavity is heated in the gradual condensation state of the liquid metal, and the back is heat transfer in the circulation of the cooling water. Achieve heat transfer, about 5%-20%…
What are the causes of cracking of nickel alloy coating? The causes of cracks in the coating are: (1) cracks due to internal defects of the base metal of the copper plate expand outward, causing cracks in the plating layer. (2) Due to the metallographic structure of the alloy plating layer, impurities exist in the…
What effect does the internal water jacket have on cooling and heat transfer？The water jacket in the diversion of the high-efficiency crystallizer adopts the integral water-filling inner water sleeve, which overcomes the problem of low processing precision and uneven water seam in the original welding water jacket, ensuring uniformity of the water gap between the…
The difference of composite coating and Cr coating: The base layer of the composite coating has good bonding strength with the base material, and the internal stress of the coating layer is small, but the composite layer is easy to fall off, and the service life is limited by the thickness of the composite layer;…
How to overcome the deformation of the upper part of the copper mould tube during the drawing process? High-efficiency flanging crystallizer: It adopts the upper end of the crystal copper tube to suspend and the lower end free structure, which is beneficial to suppress the deformation direction caused by the thermal expansion and contraction of…
What is the requirement of high efficiency continuous casting for the copper mould tube taper ? At present, the taper values of high-efficiency crystallizer copper tubes used by various steel mills are generally 0.6-0.9. When the low-carbon steel and low-alloy steel are pulled, the taper value is taken as the middle and lower limit, and…