This project is a study of the mechanical properties and the use of agricultural equipment (hoes) of farmers in the province of Ubon Ratchathani and aims to study and improve the mechanical properties of agricultural equipment (hoes) The organizers can collect data with. questionnaires and down To determine the actual usage. And know hoe farmers in the province of Ubon Ratchathani. Most popular And Harrows most popular top 3 sorted by popularity and brand Crocodile Golden lizard and Carl Sehlieper respectively to analyze chemical compounds by (Energy Dispersive Spectrometer) study found that the spade all three brands are. medium carbon steel The poll and analysis of chemical compounds, thereby improving the Crocodile brand by heat treatment for the most popular brand Crocodile. The percentage of carbon when most improved mechanical properties better. The lifetime of a shovel was longer worth the purchase price
, then the study of mechanical properties. By testing the hardness (Hardness Test) testing the hardness of spades and three brands of trial results is a brand brand strength is the Golden lizard Crocodile and Carl Sehlieper respectively after the update process, the heated shovel. Crocodile brand hardness increases. Testing the resistance to shocks of spades and 3 Brands with the resistance to shocks most is brand Carl Sehlieper followed by the crocodile Golden lizard and brand Crocodile restated, respectively, which corresponds to the hardness. all the Check microstructure by light microscope. Microstructure of these three brands have similar structure but make Golden lizard Martensite Martensite fine structure, resulting in the most strength. All the major brands and Carl Sehlieper structure is rough and structured Martensite Austenite mixed with a little. All the Gators improved by heat treating the structure Martensite more detailed. As a result, the hardness was less respectively. Cost restated by heat treatment. Can tell Cost restated by heat treatment. Can tell The cost of a spade a price increase, but compared to prices a shovel before the update process, the heat is not much difference in the price that farmers can use it to buy a shovel.
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