In 2012, NIKO Metaliks & NIKO Refractories based in India co-operated with OSIM Co. Ltd. based in China the largest non-ferrous metal manufacturer in China, and successively established the mould production base in Tianjin & Dalian.
We are one of the world's largest manufacturer and supplier of Copper Mould Tubes and Copper Mould Plates for Continuous Casting Machine who is facilitated with the most excellent technology and sophisticated equipment to produce and sell various sizes and types of copper mould for CCM, mould assembly and other continuous casting equipment in China.
OSIM Co. Ltd. is completely integrated plant with capacity of manufacturing 60,000 pcs per year. We are a regular vendor to almost all large, small and medium steel producers of India and our products are well approved by them. We supply Copper Moulds of Highest Quality that withstands maximum number of heats and ensures smooth casting of Steel billets. Our Copper Moulds are most reliable in the critical area of its application, assuring high performance and operational efficiency. We have a very strong technical team in China of experienced people having huge exposure in Steel manufacturing. We supply the Highest Quality Copper Moulds at very economical prices and in a reasonable delivery time. We supply all Sizes and specifications of Copper Moulds. Standardisation, Quality Control and extensive Research & Development is our policy to which we strongly adhere to achieve always better. We are very strict on Material Quality, the inner Coating, mechanisation, Taper and accurate dimensions of Copper Moulds. Thus, we assure all our customers of superior output through our Copper Moulds. Quality, Prices and Services has been the tripod of our success all along. We are religiously bound by perennial business ethics which is the best Trust for all our customers.
Our mould tubes and plates are made from the highest-grade raw materials using pure metal. Moulds are produced through advanced high-speed CNC machining centres, that can efficiently machine copper mould tubes and plates of virtually any size to precise specifications. The precision high-speed machining technology allows us to accurately and quickly machine the complex contours and profiles required by many designs while holding extremely tight tolerances.
Continuous product development, improved production processes in modern factories and extensive experiences in product design and manufacturing have combined to make us an international success.Every phase of the mould tube producing system is highly monitored and closely controlled. We supply all kinds of Copper Mould Tubes of all sizes and dimensions, produced exactly as per the required drawing.
| Radius | 2500mm to 16000mm |
| Square Tubes | 80mm X 80mm - 400mm X 400mm |
| Rectangular Tubes | 120mm X 240mm - 400mm X 430mm |
| Round Tubes | 120mm - 450mm |
| Length | 700mm to 1000mm |
| High Phosphorus Deoxidized Copper Cu-DHP (Cu-0.03P) |
Normal deoxidized copper. |
| Silver-Bearing Copper Cu-Ag (Cu-0.1Ag) |
Through the addition of about 0.1% silver , strength is significantly enhanced with no loss in thermal conductivity. Compared to deoxidized copper, the softening temperature is also about 100 degrees Centigrade higher than deoxidized Copper. |
| Cu-Cr-Zr Cu-Cr-Zr (Cu-0.6Cr-0.15Zr) |
Cr and Zr precipitation hardening provides this alloy with high strength, high resistance to heat, and thermal conductivity as high as high-phosphorus deoxidized copper |
| Material | Cu-DHP | Cu-Ag | Cu-Cr-Zr |
| Melting point | 1083°C | 1083°C | 1078°C |
| Coefficient of thermal expansion at 20°C | 1.68 X 10-5 | 1.68 X 10-5 | 1.70 X 10-5 |
| Thermal | 340 W/(m.K) | 377 W/(m.K) | 325 W/(m.K) |
| Recrystallization | 330°C | 370°C | 700°C |
| Hardness at 20°C | Min. 85HB | Min. 90HB | Min. 120HB |
During steel solidifying, there might be an air gap between the steel strand and the mould inside wall, which will reduce the thermal conduction of steel. In order to minimize the formation of such air gap, the taper of mould should be properly designed to follow the shrinkage curve to the maximum extent. Thus, different taper designs have been provided, such as single, double, triple or multi-taper or parabolic taper depending on factors such as steel grade, casting speed, cooling condition etc.
The Taper of Copper Moulds is of vital importance to the performance and life. We supply Copper Moulds of best suitable tapers and stronger anti-wearing plating for copper mould tubes and mould plates. Ranging from Single Taper, Double Taper, Triple Taper to Multiple Taper we supply all variants. Each mould taper is tested by the computer-operated taper monitor and the taper graph for each mould tube is delivered along with mould tubes.
Chrome plating with Nickel & Cobalt is furnished to the inside wall of copper mould tube so as to increase the wear resistance and improve the service life of the tube.
| Material | Unit | Cu-DHP (Sf-Cu) | Cu-Ag | Cu-Cr-Zr |
| Chemical Analysis | % | Cu 99.90 P 0.015~0.040 |
Cu 99.90 Ag 0.08~0.12 P 0.004~0.012 |
Cr 0.30~1.20 Zr 0.03~0.30 |
Physical Properties |
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| Electric Conductivity | %IACS | 83 | 93 | 80 |
| Thermal Conductivity | w/mk | 340 | 377 | 330 |
| Coefficient of Thermal Expansion at 20-300C | 10-6/k | 17.7 | 17.7 | 18 |
| Temparature for Recrystallization | °C | 350 | 370 | 700 |
| Soften Temparature | °C | - | - | 500 |
| Flexible Modulus | 103N/mm2 | 120 | 125 | 128 |
| Melting Point | °C | 1083 | 1083 | 1083 |
Mechanical Properties |
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| RP 0.2 | N/mm2 | |||
| AT 20°C | 285 | 275 | 350 | |
| 200°C | 250 | 245 | 335 | |
| 350°C | 195 | 190 | 295 | |
| 500°C | 30 | 30 | 185 | |
| Tensile Strength | N/mm2 | |||
| AT 20°C | 295 | 285 | 425 | |
| 200°C | 255 | 245 | 420 | |
| 350°C | 200 | 195 | 340 | |
| 500°C | 90 | 90 | 210 | |
| Prolongation Rate A5 | % | |||
| AT 20°C | 20 | 17 | 20 | |
| 200°C | 9 | 13 | 18 | |
| 350°C | 10 | 10 | 19 | |
| 500°C | 40 | 40 | 20 | |
| Hardness | HB 20°C | 90-105 | 85-100 | 130 |
Coating Material for Copper Mould Tube |
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| Material | Thickness | |||
| Chrome Coating | 0.08-0.1mm | As per Drawing | ||
| Alloy Coating (Nickel + Cobalt) | 0.03-0.08mm | As per Production Engineers Decision | ||