1Welding Practice report: I went to do the factory workersFirst, the practical purpose: 1, familiar with the types of welding methods, familiar with steel, cast iron, aluminum and aluminum alloy, copper and copper alloy welding and other metal materials. 2, familiar with the related welding equipment, welding materials and selection of familiar. 3, the initial grasp of manual arc welding, gas welding, brazing and other welding methods. 4, the initial grasp of welding, manual soldering process design, process design of welded structures. Second, the practical content: warehouse shelf production (Size: 2.00m * 1.65m * 0.50m, number: 10 Third, the training tool: 5m steel tape one, just square, two alligator clamp, welding mask, shin guards, welding gloves. Fourth, practice equipment: 9kVA AC welding machine (including electrode holder, cable line. Fifth, training materials: slate pencil, 2.5 welding. Sixth, practice these steps: 21, see practice drawings (see attached map. Calculation of angle iron 45 2, according to the drawings, the angle with the cutting machine cut the required size. Cutting NOTE: standard length of angle iron 6m, will be an angle iron were then divided into three segments, 1.99m / section, the shelf with angle iron welded into the thickness just after the long-2m, cutting the time if 2m / section, the rest of the first 3 to less than 2m, cause material waste, the product does not match the requirements of 10 shelves, to be 1.99m / 80 section of angle iron segments, a total of 27 angle iron, more than 2m, can be divided into four segments are needed for the shelf width, under 1.65m expected, it will be an angle iron were divided into three segments, 1.65m / section just points the rest of 1m 2, 0.5m / section, the width required for the shelves, 10 shelves, to be 1.65m / Section A total of 40 angle iron, angle iron 14 total, 13 of which more than 1m, can be divided into 2 segments are needed for the shelf width, and the other one of more than 4.35m, can be divided into 8 segments are needed for the shelf width, 10 个 shelves, to be 0.50m / 80 section of angle iron section, integrated , Total 8264 = 38, need to 0.50m / 3Section 42 material, it will take the whole angle iron 4, each of which 3 articles are divided into 12 segments, 0.49m / section, 6 points after another more than 3m, to 0.50m / section and 0.49m / segment angle iron note kept separate, 0.49m / Section for the middle shelf, does not affect the shelf size. 3, 1.65m / section, 1.99m / segment material by drawing size of the 2, swing for the shelf pillar, on the lower rungs, pay attention to the diagonal of equal length. Before welding, the size is correct after the expiry of welding. 4, by drawing on the middle 2 sizes welded crosspiece, so that one side of the shelf is complete. 5, the first one bracket (the shelves on one side as the “template” to complete the other bracket. 6, solder a short horizontal shelf file, pay attention to both sides of the vertical angle. VII, practice experience: the shelf production should be the most simple metal welding - basic only welding, of course, without turning the case of the shelf, you can practice vertical welding, welding Yang. The production process should pay attention to material terms, to avoid wastage. Because arc welding with a strong ultraviolet radiation on the eyes, skin 4burns, so the welding work should be careful: with a mask, wear thick cotton clothing, welding gloves, shin guards, etc., good labor protection.