COOPER MOULD TUBE (CMT)

Category COOPER MOULD TUBE (CMT)


COOPER MOULD TUBE (CMT)


Detail

Description:

Copper mould tube is placed in the hearth position of continuous casting machines (CCM), its function is to receive the molten steel and allow rapid heat transfer from the steel to the cooling water to enable quick solidification, therefore, the copper mould must have below features:

  1. excellent thermal conductivity
  2. Resistant to Thermal Erosion
  3. Resistant to Distortion from Thermal stress
  4. Resistance to Abrasion
  5. Cost Effective

 

Size table:

Type

Size/mm

Camber Radius

Wall thickness/mm

Length/mm

Remark:

Square copper tube

50x50~650x650

3000~17000 & Straight

6~50

602~1100

Design with single taper,
double tapers, triple tapers,
quadruple tapers, parabolic
taper, double parabolic
tapers

Rectangular copper tube

70~550x110~720

3000~17000 & Straight

6~50

602~1100

Round copper tube

100~1200

5000~17000 & Straight

10~50

602~900

Design with double tapers,
triple tapers, multi-taper,
continuous tapers

Beam blank copper tube

535~150x120~70

6000~14000

12~50

700~1016

triple tapers, multi-taper,
continuous tapers

 

Materials grade:

TP2 (GB/T5231-2001)=SF-Cu/DHP-Cu (DIN1787)

Phosphorus de-oxidized copper

It shows excellent heat-proof and antifatigue property under high temperature and has good processing property, thus is chosen by most of steel plants. The alloy has been proven to be excellent for the manufacture of moulds in the continuous casting of billets.

 

CuAg0.1 (GB/T5231-2001)=Tg0.1=DPS-Cu ((DIN1787)

Adding 0.08%-0.12% silver during copper ingots melting will increase the recrystallization temperature by 100°C, which will increase the heat stress and anti-abrasive property of copper mould tube interior surface, showing better heat-resistant property than TP2.

This alloy is normally used in moulds for the continuous casting of blooms and slabs. In this case, the mould’s are much thicker than in the billet moulds, and the mould’s temperature can be higher.

 

Cu-Cr-Zr

Copper alloys can be normalized by time. It has excellent mechanical property under both room temperature and high temperature, also high heat conductivity, melting point, antifatigue and anti-heat stress properties. It combines all good properties together, however, compared with other copper alloys, Cu-Cr-Zr is difficult to be formed and also cost higher.