03321cas a2200409 a 4500 20260818094903.0 110920s1988 th uu|m rtt 0| a1eng d .b10690165 AIT Thesis no.AE-88-14 Mufti, Azhar Iqbal The effect of coating on floats and mouldboard plough Bangkok : Asian Institute of Technology, 1988 76 p. Thesis ; no. AE-88-14 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1988 In an effort to reduce the energy requirements of the tillage tools in a farming operation, a study was conducted to investigate the effect of enamel coating on floats and the mouldboard plough, under controlled laboratory conditions in Bangkok clay soil at different soil moistures and travel speeds. The Friction characteristics of enamel improved the scouring and reduced the Draft requirements of both the enamel coated floats and mould boardplough. A reduction of 30 to 50 % in drag of floats was recorded in Teflon and Enamel coated floats under dry and wet soils (14 - 31 %, soil m. c.). In puddled saturated soil, a 11 - 30 % decrease in drag was observed for enamel and Teflon coated floats respectively. The overall performance of the enamel coated float was better than other coatings namely; Teflon, Zinc and Mild- steel at all moisture levels. Qualitative observations indicated enamel to be more resistant to abrasion than Teflon and Zinc and Enamel showed better scouring qualities operating in dry soils, ( 16% m.c. db) showed a decrease in draft of 19- 22% for the speed range of 1 - 3 km/hr. In wet unsaturated soils (21 & 31 %), 3 to 28% reduction in plough draft was noticed in the same speed range. Puddled saturated soil (51 & 58% m.c. db) also gave 3 to 28 % reduction in draft in the same speed range (1 - 3 Km/hr.). In saturated soils, low travel speed gave higher reduction (28%) in plough draft. In wet soils the scouring of the enamel was much better than the uncoated one. A cyclic nature of the plough forces was observed. Plows Agricultural machinery Gee-Clough, D., Chairperson Salokhe, Vilas M., Co-Chairperson Singh, Gajendra, Examination Committee Gupta, Chandra P., Examination Committee The Royal Government of Netherland, Scholasrhip Donor Asian Institute of Technology. Thesis ; no. AE-88-14 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18914 .b10690165 mnait s 240402 2 951012 m a s 4 mnait mnarc 22 40 Barcode : 30050120582068 CREATED : 2014-10-02 RECORD # : i12759995 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120300818 CREATED : 2016-05-26 RECORD # : i12996051 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 34206 34206 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.AE-88-14 30050120582068 2026-08-18 09:49:03 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.AE-88-14 30050120300818 2026-08-18 09:49:03 2026-08-18 40