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Research · technical library

The detail,
explained.

Technical articles from CIME's engineering office on coreless induction melting, automatic press-pouring, IGBT converters and retrofits.

Technical articles

11 articles
PouringThe CIME CAP automatic press-pouring furnace installed and running in a foundry.

Press-pouring, explained

How the world's first coreless automatic press-pouring furnace keeps the bath and siphons hot and pours a slagless stream onto any moulding line.

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PouringA CAP furnace seen from above in a foundry: in the background a ladle charges it with a white-hot stream of iron while in the foreground the furnace keeps pouring

Press pouring vs ladle pouring

A ladle lets metal cool, fade and pick up slag on the way to the mould. Why steady, automatic lines switch to a heated, sealed press-pouring buffer, and when a ladle still fits.

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PouringCAP automatic pouring system dosing molten iron into moulds on a moving line

Automatic pouring systems

How to choose an automatic pouring system for your foundry: the two families, what to specify by metal and line, and how a modern system keeps every casting on weight.

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Melting furnacesAI-generated illustration: drawing of a CIME coreless induction pouring furnace. The entire area, siphons included, is heated.

Coreless vs. channel induction

Both melt by induction, but heat the metal in completely different ways. Why coreless heats the whole bath, pours ductile iron and empties 100%.

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Melting furnacesTwo CIME coreless induction furnaces melting in a foundry.

UHE vs. UHP coil design

Two ways to build the magnetic structure around the coils: laminations for efficiency, water-cooled plates for power. Plus the modular, repairable coil.

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ConvertersA blue 8 MW CIME converter installed in a foundry electrical room

IGBT vs SCR converters

Why IGBT means faster melts, higher efficiency than SCR, power factor above 0.95 and no harmonics on the grid, and when to choose it or retrofit an SCR.

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ConvertersCIME IGBT and SCR converter cabinets

SCR to IGBT retrofit

Why modern IGBT converters beat SCR on efficiency, power factor and harmonics, and how to retrofit installed equipment at lower capex.

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SustainabilityDetail of a CIME melting furnace during melting: the raised lid reveals the glowing bath and the sparks, with the Crescenzi badge on the frame

Induction furnace energy consumption

What a coreless furnace uses in kWh per tonne, how close that is to the theoretical minimum, and the five factors that decide your number.

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PouringA CAP furnace producing ductile iron with a powder inoculation hopper

Ductile iron yield optimization

Where ductile iron yield leaks to magnesium fade, inoculation fade, dross and pour variation, and the process levers on the melt and pour side that recover it.

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Melting furnacesA CIME induction melting furnace melting in a foundry, with the orange glow of liquid metal at the furnace mouth and the Crescenzi and CIME marks on the furnace body

How an induction furnace works

An induction furnace melts metal with a magnetic field, not a flame. The electromagnetic principle, the converter and coil that do the work, and why foundries melt this way.

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Melting furnacesMolten metal bath in a melting furnace during melting

Temperature uniformity in induction melting

Why a coreless bath sits at one temperature top to bottom: whole-bath heating and electromagnetic stirring, what degrades the mix, and how to check it.

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02
Why we publish this

Seventy years of know-how.

CIME has engineered coreless induction furnaces in Turin since 1952. These articles share the reasoning behind the machines, so foundry engineers can specify with confidence. More are on the way.

Have a harder question?

Our engineers in Turin answer the ones the articles do not. Tell us your metal, your line and your target.