2results about How to "Good weldability" patented technology

This utility model discloses a composite water-cooled plate for a battery tray and the battery tray itself. The composite water-cooled plate includes: a water-cooled channel plate with a recessed water channel groove on one side; and a water-cooled cover plate, which is a composite plate formed by a first plate layer and a second plate layer. The cover plate covers the water-cooled channel plate, and the first plate layer and the water-cooled channel plate are connected by resist welding. A cooling water flow channel for heat exchange is formed between the water-cooled channel plate and the water-cooled cover plate. This utility model, by using a water-cooled plate composed of stainless steel plate and steel-aluminum composite plate, increases the overall structural strength, solves the problem of poor structural strength in existing all-aluminum liquid cooling plates, improves its load-bearing capacity and the protection level of the battery tray, and ensures the safe operation of the battery pack.

The invention discloses a method for producing H08A semi-killed low-silicon welding rod steel by adopting a small square billet process, and belongs to the technical field of ferrous metallurgy. The method comprises the four procedures of converter smelting, LF refining, continuous casting and rolling, by optimizing the technological parameters of all the procedures, precise control over the silicon content and effective removal of inclusions are achieved, and the product quality stability is improved; the sulfur content and the phosphorus content are both smaller than or equal to 0.030%, the inclusion rating is smaller than or equal to 1.5 grade, and the purity of the welding rod steel is improved; the silicon mass fraction is stabilized at 0.03-0.07%, and the problem that the welding performance is poor due to the fact that the silicon content in a traditional process exceeds the standard is solved.