Workshop Technology
The advantage of Thermit welding is that

Results in a minimum problem with internal residual stresses
Weld cools almost uniformly
All parts of the weld section are molten at the same time
All of these

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Workshop Technology
The diaphragm moulding machine is used to

Produce uniform packing of sand in the mould
Ram the sand harder at the back of the mould and softer on the pattern face
Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
Give uniform sand hardness throughout the mould

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Workshop Technology
In a hot chamber die casting machine

Nonferrous alloys with low melting temperature are casted
Ferrous alloys with low melting temperature are casted
Ferrous alloys with high melting temperature are casted
Nonferrous alloys with high melting temperature are casted

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