Copper mould tube is placed in the heart position of continuous casting machine(CCM), its function is to solidify the liquid steel pouring through the Submerged entry nozzle, guaranteeing required billet/bloom with enough thicken shell to be obtained. Copper mould tube plays a crucial role in increasing con-casting efficiency as well as improving billet quality.

-Copper mould tube material :
The tough working condition of copper mould tube requires its material with excellent tensile strength, enough hardness, low elongation & good thermal conductivity. After many years experiment in our Lab & steel mills, now we are manufacturing copper mould tube with widely accepted material as : CU-DHP (Phosphorus deoxidized copper), CU-AU0.1(Silver bearing copper) & Copper Chrome Zirconium.

-Copper mould tube Chromium plating
The temperature inside the mould is very high, so in order to prevent inside wall from wearing off & eliminating cracks & defects on the billet surface, a chromium plating with an average thickness of 0.08~0.10mm will be required to coat the inside wall.

By introducing western plating technology, Anssen Metallurgy Group has successfully improved the coalescent strength between copper and plating, as a result, life of copper mould has been elongated by 20~30% compared with traditional ways.

-Copper mould tube taper design:
Properly taper design will make billet shrinking in a proper curve while passing through, also minimizing the air gap between copper mould & billet Shell.(see below chart).
Route of heat transferringinside the copper mould Billet shellâ??(1) Air gapâ??(2) Mouldâ??(3) Cooling waterâ??(4)
Proportion of thermalresistance % 25% 71% 1% 2%

As shown above, minimizing the air gap is the key of improving heat transferring.
Along with the development of con-casting technology, we have accumulated rich experience in designing double taper, triple taper, multiple taper, parabolic taper as well as double parabolic taper to meet customer

Kavin  Moo

ANSSEN Metallurgy Group Co.,Ltd

Tel: 0086-411-84390102

Mobile:13604092099

Fax:0086-411-84390806

Add:603No:100ShengLiRoad,XigangDistrict,Dalian,Liaoning,CHINA

Email: Kavin@anssen.com

Website: www.anssen.com