拉夫内 – 回顾400年的炼钢和铸造传统,公司的发展经历了从使用非合金钢制成简单几何铸件到使用低合金和高合金铸钢制成更高要求、更复杂的产品结构的转变。

Key Products

  • Serial castings at 0,2 – 40 kg (for ex. fittings DN15 to DN100) according to Croning method (hot box procedure)
  • Individual castings and smaller series at 15 – 1000 kg (for ex. fittings DN100 to DN600) according to ester silicate method (usage of different quality of silicate, ceramic, chromite and zircon sand)

Steel Grades

  • Unalloyed and alloyed cast steel
  • Wear – resistant cast steel on the basis of Cr and Mn
  • Stainless and corrosion – resistant cast steel
  • Heat – proof steel castings
  • Austenitic – ferritic steel castings (duplex)
  • Special alloys

Materials

  • DIN Standard: 1.0619, 1.4408, 1.1138, 1.5419, 1.7357, 1.4308, 1.4409, 1.4581, 1.4470
  • ASME Standard: WCB, CG8M, WCC, A217 WC1, A217 WC6, A217 WC9, CF8, CF3M, CF3, A182, A890 4A, 5A, 6A

Production Capacities

  • Production of castings according to the Croning method: 80 – 90 t monthly
  • Production of castings according to the Veloset method (self-hardening sand moulds): 40 – 50 t monthly
  • Melting in induction furnaces with different capacity (2.000 kg, 600 kg, 150 kg)
  • Preparation of new patterns from metal and wood, repairing of old patterns

Our Offer

  • Production of castings and finished sub-assemblies for fittings and pumps,
    for chemical and petrochemical industry, wood-processing industry, machine construction and automotive industry
  • Production of wear-resistant products for sand-blasting machines
  • Production of castings made of refractory material
  • Production of tools (patterns made of steel, wood and plastics)
  • Heat treatment (heating with gas, cooling with air, water, then usage of vacuum furnace and cooling in oil (at subcontractors)
  • Acceptance conditions in conformance with customers’ requirements, for ex. Germanischer Lloyd, Bureau Veritas, Det Norske Veritas, RINA, etc.)

Quality Control

  • Chemical analysis
  • Metallographic inspection
  • Non-destructive testing (RT, PT, UT, MT)
  • Destructive testing (tensile test, notched-bar test)
  • Dimensional testing on modern measuring machines

CUSTOMER SERVICE
Croning Livarna d.‎o.o.
Koroška cesta 14
2390 Ravne na Koroškem
Slovenia

PHONE +386 (0)2 87 70 500
FAX +386 (0)2 87 70 550
E-mail

专业知识

我们提供专业技术知识和建议,因为我们深知专业产品需要个性化的专家支持。

安全

安全是我们的首要任务。当与腐蚀性或磨蚀性介质一起工作时,我们的产品符合很高的安全标准,因此被全球的化工、石化、炼油、石油和天然气、电力和生物制药等行业所接受和使用。

质量

质量始终是我们业务的核心。我们的产品在整个生产过程中都要经过全面的测量和质量检查。每件成品都要经过仔细的检查和最后的测试。通过我们的质量检查和程序,我们可以保证稳定的质量。

Croning ®

如今,公司拥有114名专注生产由高质量铸钢材料制成的复杂几何钢铸件的员工。