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Showing posts from April, 2015

TREE - COUROUPITA GUIANENSIS or CANON BALL or KAILASPATI

COUROUPITA GUIANENSIS or CANON BALL or KAILASPATI  Post 121by Gautam Shah ➔

These trees are as amazing, as their name “Canon ball” is. Its fruits are like large brown balls held on short twigs, and so appear to grow out of the trunk. Fruits take 8-9 months to ripen, fall and burst open with a loud crack. The flowers are large (up to 60 mm) with six petals, brightly coloured from pink to crimson coloured near the base, and yellowish toward the tips. Flowers have sweet smell at night and in the early morning. The ripe and bust fruit balls give a foul stench, which attracts bees and animals.
The tree, bark, leaves and flowers are used to treat hypertension, tumours, pain, inflammation, common cold, stomachache, skin conditions and wounds, malaria, and toothache, etc.

These are tall (35 to 50 mts) and erect deciduous trees. The leaves are long like a mango tree. They grow in clusters at the ends of branches. The leaves ripen to reddish colour, shed three times a year. The trees, however, …

METALWORKING

METALWORKING Post 120by Gautam Shah ➔ .
Metals are very important materials, because these can be easily deformed into useful shapes, and several times over and over again. The shape, function, and appearance of metal objects are largely determined by the type of metal used. Metals as pure material and as alloys or in mixed states offer innumerable variation of properties. Metals show a wide range of unique characteristics when ‘worked’ over. These ‘working over the metal’ are related to temperatures and stress inductions. Metals also show varied behaviour under different use conditions.




Metals begin to change during the conversion processes like casting, forging or rolling. Casting is a melt process but its environment, and cooling-period affect the quality of material. Forging and Rolling, are hot as well as cold processes, which stress the metal and cause alteration in its constituents and their arrangements. In cold working some temperature rise is inevitable. In hot conversion proce…