I encountered in the construction of 2 short 28# channel welding, processed into beams, how to weld? Do I have to have stiffened panels? How many pieces? What's the thickness of the stiffener? I heard that there is a book called "metal processing manual", which has instructions, but I do not have the book. Please give settlement.
This is called the welding [] [] button, the back button is welded. [] relatively buckle welding should be simple, if there is no external size limit, you can make two channels are reserved in the middle of a certain gap, with one side welding double side molding method, usually without the middle plate. But 28[, at the end of his the flange is not very thick <9mm, so this welding method is relatively simple, if there is a peripheral size limit, which is in the middle gap is 0, then the 9mm plate thickness on the slightly better welders is simply a penetration problem.[] back button welded together relative to the trouble, but it is not used much, unless there is a special purpose, otherwise it is generally not considered.
Manual arc welding and J422 (E4303) welding electrodes can be used.Take the side of the web welded stiffening plate (channel steel, in the inner side of the groove with stiffening plate), the wing plate with open groove back sealing welding, welding before welding groove groove cutting slag and its inclusion must be cleared; after welding inspection. The web stiffener is greater than or equal to the thickness of the web. The dimension of the reinforcing plate is: the length of the steel plate is equal to the height of the section steel, and the width is equal to the height of the section steel, minus 70mm.
If the gap between the two weldment is not conducive to welding, it can be welded with a piece of steel plate. If the assembly gap is reasonable, direct rust removal and welding can be done.
