technology & solution
LMM is equipped with advanced equipment and enjoys excellent technology for mechanical and electro-plating processing. It has complete testing devices, perfect production management and strict environmental protection measures. With dedicated to research of new technologies, we continuously develop various sizes, materials and special shapes, large and super large size mould tubes. We also developed various types of high efficiency copper mould tube for continuous casting machine. Our products range also features mould assembly and other metallurgical spare parts. Apart from copper mould tubes, we also produce various types of copper mould plates and assembled beam blank moulds.
Smelting/Casting: 2 line Smelting furnace and continuous casting machine
Forging/Extrusion: 9 sets Hydraulic Press
Machining:
23 various units CNC Machines
2 Sets Special CNC Processing Machines
Electro-plating:
1 line Copper Annealing Furnace
2 lines One electro plating Line for tube and plate each
Quality Assurance:
1 set Tensile Strength Machine
5 sets Harness meters
2 sets Thickness meters
1 set Ultrasonic flaw detection machine
Smelting/Casting < Forging/Extrusion < Machining < Electro-plating < Quality Assurance
Material
TP2 is a kind of material is selected by most of the steel plants. It shows excellent heat-proof and anti-fatigue property under high temperature and it has good processing property. CuAg0.1 is adding 0.08%-0.12% silver during copper ingots melting will increase the recrystallization temperature of copper by 100C, which will increase the heat stress and anti -abrasive property of copper mould tube interior surface, showing better heatresistant property than TP2.
Cu-Cr-Zr is a kind of copper allys which can be normalized by time. It has excellent mechanical property under both room temperature and hight temperature.It has hight heat conductivity, melting point,anti-fatigue and anti heat stress properties. Their outstanding features make it different from the previous copper alloys. It combines all good properties together. But compared with other copper alloys, Cu-Cr-Zr is difficult to be formed with higher products costs.
| Material | |||||
| ltem | Temp | Unit | Material | ||
| CuDHP | CuAg0.1 | CuCrZr | |||
| Chemical Composition | |||||
| P0.015~0.040 | Ag0.08~0.12 P0.004~0.012 | Cr0.30~1.20 Zr0.03~0.30 | |||
| Physical properties | |||||
| Electical conductivity | 20 | %IACS | 83 | 95 | 80 |
| Thermal conductivity | 20 | W/(m. K) | 340 | 37 2 | 330 |
| Coefficient of thermal expansion | 20-300 | 10^ -6/K | 17.1 | 17. 1 | 17.2 |
| Recrystallisation temperature | °C | 345 | 360 | 690 | |
| Modulus of elasticity | 20 | 10^ 3MPa | 120 | 123 | 126 |
| Melting point | °C | 1083 | 1083 | 1078 | |
| Specific gravity | g/cm3 | 8.9 | 8.9 | 8.9 | |
| Mechanical properties | |||||
| Ultimate tensile strength | 20 | Mpa | 240-310 | 240-310 | 375-44 5 |
| Ultimate tensile strength | 100 | MPa | 190-270 | 230-270 | 365-425 |
| Ultimate tensile strength | 200 | MPa | 140-190 | 205-240 | 365-410 |
| Ultimate tensile strength | 300 | MPa | 175-210 | 335-375 | |
| Ultimate tensile strength | 400 | MPa | 145-160 | 315-350 | |
| 0.2Yield point strength (Rp0. 2) | 20 | MPa | 190-250 | 200-22 5 | 280-355 |
| 0.2Yield point strength (Rp0. 2) | 100 | MPa | 185-260 | 195-240 | 270-345 |
| 0.2Yield point strength (Rp0.2) | 200 | MPa | 180-225 | 260-330 | |
| 0.2Yield point strength (Rp0. 2) | 300 | MPa | 165-215 | 250-320 | |
| 0.2Yield point strength (Rp0. 2) | 400 | MPa | 130-145 | 240-290 | |
| Elongation (A5) | 20 | % | 25-10 | 16_ 10 | 20-13 |
| Hardness | 20 | HB | 80-95 | 110-125 | 115-130 |
| Mark: TP2 (GB/ T5231-2001 )= SF-Cu/DHP-Cu(DIN1 787) | |||||
Research & Development
Our company has 50 technicians and 15 of them have senior professional titles. We have strong ability to develop products of various materials and sizes (Square, Rectangular, Round, Nonstandard and Beam Blanks, with range from the smallest of 50x50mm to the largest of Dia.1500mm round tubes, 500x500mm Square tubes, 120×650 rectangular tubes). Strong R&D abilities can meet the customers demand to the maximum extent. The perfect combination of experience and theories constantly improves the quality of our products. We are dedicated to shaping steel! We not only provide products, we also provide handicrafts, the mirror finished tubes surface is like a mirror.
Our Pre-sales:
recommend suitable products according to the actual working conditions and needs of customers.It can also bedeveloped and designed according to needs, and customized services can be provided. During the epidemic, provide remote detection technical support
Strict quality control:
From raw materials, to the production process and befor eleaving the factory, all performance indicators arestrictly tested, and the professional QC team controls according to the process.
After-sales service:
Quality assurance and Resolution of any issues that arise
LMM GROUP have been supplied to world’s top steel manufacturer :
Australia: Liberty steel/Bluescope steel
Italy: JSW steel
United Arab Emirates：Emirates Steel
Egypt:Ezz Steel
Luxembourg：RIVA Group，ArcelorMittal
Turkey: Tosyalı Holding，İçdaş，Erdemir Group
Spain: Liberty Steel Group，CELSA Steel Group
India: tata-steel，SAIL, SPL，Erdemir Group etc. We do OEM for Concast and Danieli for a long time
With decades of proven experience, our team is prepared to help you achieve your goals, and beyond.
LMM have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, NLMK, MMK, etc. We do OEM for Concast and Danieli for a long time
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Special product design, please send specific data and drawings to our mailbox or form
