Workshop Technology
Linde welding uses

Neutral flame and rightward technique
Neutral flame and leftward technique
Carburising flame and rightward technique
Oxidizing flame and leftward technique

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Workshop Technology
During hot working of metals

Porosity of the metal is largely eliminated
Mechanical properties are improved due to refinement of grains
All of the listed here
Grain structure of the metal is refined

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Workshop Technology
A jolt machine is used to

Produce uniform sand hardness throughout 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
Produce uniform packing of sand in the mould

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