Copper Tube Mould

Function of the Copper Mould in Continuous Casting

Due to its exceptionally high thermal conductivity, the copper tube rapidly transfers heat from the molten steel, enabling the formation of the initial solid shell of the billet. This process prevents surface cracking and ensures the final product meets quality requirements.

Types of Copper Moulds in Casting

Copper moulds are categorized based on the type of product being cast:

• Billet Copper Mould — used for producing steel billets (Manufactured in common standard sizes: 150×150, 130×130, 125×125, and 100×100 mm.)
• Bloom Copper Mould — suitable for larger cross‑sections
• Slab Copper Mould — designed for steel slab production

The differences among these moulds lie in their dimensions, cross‑section geometry, and industrial application.

Characteristics of a High‑Quality Copper Mould

A standard copper mould must have the following specifications:

• Manufactured from high‑purity copper
• Tapered design (Taper)
• Internal coating of chromium or nickel
• Precise and uniform cooling system

Copper Mould vs. Copper Tube Mould

In the steel industry, the terms copper mould and copper tube mould refer to the same component and have no technical difference. The term Copper Tube Mould is simply derived from international casting terminology.

Material Composition of Copper Moulds

Copper moulds are typically produced from pure copper or specialized copper alloys. To increase resistance against wear and corrosion, a chromium or nickel coating is applied to the inner surface.

Service Life of a Copper Mould

The lifespan of a copper mould depends on several factors, including material quality, coating type, operating conditions, and the accuracy of the taper design. When standard moulds are used, continuous production over several thousand steel heats can be achieved while maintaining billet surface quality.

Importance of Taper Design in Copper Moulds

The tapered design compensates for billet shrinkage during solidification, preventing surface cracks and structural defects.

Problems Caused by Low‑Quality Copper Moulds

Using non‑standard moulds may lead to:

• Increased surface cracks
• Reduced final product quality
• Higher production waste
• Increased maintenance costs and production stoppages

Role of Copper Moulds in Export‑Grade Billet Production

In the production of export‑grade billets, surface quality and structural uniformity are critical. High‑quality copper moulds play a direct role in ensuring the product meets international market standards.

Summary and Price Inquiry for Copper Moulds

The copper mould (Copper Tube Mould) is one of the most important components of the continuous casting line, determining the final quality of the steel billet. Understanding the types of moulds, their technical characteristics, and the factors affecting their lifespan helps in selecting the right equipment.

For up‑to‑date pricing of copper moulds and specialized casting consultation, you may contact our technical experts.