40results about How to "Control penetration" patented technology

The invention relates to a welding method, a product and an application of a dissimilar metal. The welding method of the dissimilar metal comprises a high-melting-point material to be welded and a low-melting-point material to be welded, the high-melting-point material and the low-melting-point material are mutually overlapped or connected in a sleeving manner to form a welding seam, the welding seam is welded by the aid of electric arc welding, electron beam welding, laser welding or high-frequency welding, the welding temperature is lower than the melting temperature of the high-melting-point material and higher than the melting temperature of the low-melting-point material, the low-melting-point material is melted to serve as a welding material to seal the welding beam and cooled to form a welding channel, and the width L of the welding channel is larger than or equal to 1.5mm. The melted low-melting-point material directly serves as the welding material to seal the welding beam to form the welding channel with a certain width, so that the melted low-melting-point material and the high-melting-point material are mutually permeated in a certain area range to form solid solution, the permeation quantity of high-melting-point metal to low-melting-point metal is controlled, overall strength sufficiently meets use requirements, more importantly, frangibility of the welding channel is reduced, mechanical properties are improved, the requirements for a welding process are low when welding is performed, and the welding method is easier to control.

The invention discloses a multi-wire (solid or flux-cored) bead welding system adopting an inert gas protection or submerged arc method, and a process of the multi-wire bead welding system. The multi-wire bead welding system and the process of the multi-wire bead welding system are used for replacing surfacing with band-electrode to obtainer higher production efficiency. The multi-wire bead welding system comprises a welding gun swing mechanism (11), a multi-wire welding gun (6), a wire-feeding pipe (4) and at least two wire-feeding machines (5). Compared with traditional bead welding, the multi-wire bead welding is higher in deposition rate. Due to the fact that a lap joint area of multi-wire bead welding is soother than that of traditional bead welding, the machining time needed to obtain a smooth surface is largely shortened. A machine head of the multi-wire bead welding system can swing in the welding process, the fusion ratio between bead welding materials and wood is improved while a wider weld joint is obtained, and the unique swing function can guarantee a bead welding layer to be more uniform.