I-beam is also called steel beam (English name I Beam), which is a long strip of steel with a cross-section of I-shaped. I-beam is divided into ordinary I-beam and light I-beam, and H-shaped steel. I-beam is widely used in various building structures, bridges, vehicles, brackets, machinery, etc.
The flanges of I-beam and I-beam are gradually thinner from the root to the side, and have a certain angle. The models of ordinary I-beam and light I-beam are made of Arabic numerals with a height of several centimeters. It means that the web, the thickness of the flange and the width of the flange are different. The specifications are expressed in millimeters of waist height (h) × leg width (b) × waist thickness (d). For example, “Pugong 160×88×6†means A common I-beam with a waist height of 160 mm, a leg width of 88 mm and a waist thickness of 6 mm. "Light work 160 × 81 × 5", which means light-weight I-beam with a waist height of 160 mm, a leg width of 81 mm and a waist thickness of 5 mm.
The specifications of ordinary I-beams can also be expressed by model. The model number indicates the number of centimeters in waist height, such as Pugong 16#. For I-beams with the same waist height, if there are several different leg widths and waist thicknesses, add abc to the right of the model to distinguish them, such as General 32#a, 32#b, 32#c, etc. The specification of hot rolled ordinary I-beam is 10-63#. The hot-rolled ordinary I-beams supplied by the supplier and the buyer are 12-55#.
According to the action requirements, when clamping drill pipe, can achieve the fixed drill pipe; When the drill pipe is relaxed, it can be lifted or lowered.
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