Search
TECHNOLOGIES - FOUNDRY
Raba has founded its own Foundry in 1918. Due to development in the automotive markets, in 1973 the company established a new, up-to-date steel foundry in the so called airfield plant converted to the production of nodular iron castings in 1988.
The Foundry formerly part of the axle business unit has been operating as a Joint Venture (Busch-Rába Foundry Ltd.) since 1st January 2008. The aim of this restructuring is also a significant expansion of the capacity and the technological development of the Foundry plant.
Main dataYear of estabilishment: 1973
Area installed: 25 000 m2
Annual total capacity: 11 000 t/year
Casting material categories: 450-10, 500-7, 600-3, 700-2 (based on ISO 1083)
Castings of medium weight are produced in Künkel-Wagner high-pressure forming machine with automatic sand feeding.
|
Production lines
|
Casting parameters
|
Main parts
|
Capacity Thous. Tons/year
|
| KÜNKEL-WAGNER medium casting line
|
Medium size castings (800X500X400,
15-17 kg) |
Wheel hub, Differential housing, Carrier housing, Planetary carrier
|
9
|
The sand required to the mould patterns of large-size castings gets final strength by chemical bond (resin). Boxes are moved by a computer controlled roller line.
|
Production lines
|
Casting parameters
|
Main parts
|
Capacity Thous. Tons/year
|
| Large casting line
|
Large size castings (1600X1000X600,
50-500 kg) |
Axle housing, Air spring bracket, Differential housing, Planetary carrier
|
2
|
Main products
The Foundry produces mainly castings for truck, trailer and tractor axles. Medium size castings (wheel hubs, planetary carriers, differential carriers, diff. case halves, etc.) are produced on Künkel-Wagner line, and the line equipped with larger boxes produces axle housings, centre sections and air suspension beams.
Engineering activitiesEfficient production is provided by advanced background of information technology: the Foundry simulates the pouring process (mould filling and solidification of casting) by means of PRO/E and MAGNASOFT software.
QualityAdvanced measuring equipment provides continuous quality control of the products in the Foundry. Process control is based on an SPC.
Core makingThe Foundry applies procedures both with cold and hot core boxes in RÖPER, KMAG, and SALCO machines. Cores of the large-size castings are mainly produced manually. Core making procedures applied are Croning (Shell), Betaset, resin-CO2, Furan sand.
MeltingOur Foundry uses two medium-frequency inductionmelting furnaces with a capacity of 8 tons/hour. The melt iron gets into a 60-ton ASEA-produced furnace for storing and homogenization. Fluid metal is nodularised in IMCONOD. The 2-ton heats are poured into the boxes by means of DEMAG pouring crane.
Other pages
