Some small-scale industries based on timbers of the Himalayan region and suitable for establishment in the hill areas have been described. These are manufacture of compressed wood shuttle blocks, cotton mill pirn blocks, pencil slats, tool handles and tent mallet heads, semi-finished frames of tennis and badminton rackets, mathematical instruments etc. Approximate investments involved, machinery and inputs required and manufacturing proceses have also been briefly indicated.
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Trials on some Andaman Light Hardwooos for Pencil Making
Results of trials on the suitability of bakota (Endospermum malaccenae), lambapatti (Planchonella longepetiolata), red dhup (Parishia insignis) and white dhup (Canarium euphyllum) for pencillnaking have been described. Bakota and lalmbapatti after suitable dyeing and waxing treatment have been reported by pencil factories as comparable to kuthan (Hymenodiclyon excelsum) and banati(Lophopetalum wightianum) presently used. Results of a trial with PEG-1500 as softening agent in place of paraffin wax are also described.
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Influence of some Upset Butt Welding Parameters on the Weld Properties of HSLA Steel
The effect of variation in seme upset butt welding parameters such as, current way(10-12mm) and welding way(14-20mm) on the microstructure and hardness of different region of HAZ and the toughness of the weld in high strength low alloy steel weldnu it have been studied.
