2results about How to "Strong coating adhesion" patented technology

The present application belongs to the technical field of mechanical cutting tool manufacturing, and particularly relates to a micro-textured tool based on laser micro-cladding in-situ forming, a preparation method and application thereof. Specifically, the present application successfully prepares a multi-layer coated tool with a micro-textured morphology. The tool has the advantages of micro-texture, laser cladding layer and multi-layer coating structure, and has high hardness, good self-lubricating performance, good toughness, strong coating adhesion and small internal stress of the coating, and will not produce defects such as deformation or micro-cracks of the tool substrate material. In the cutting process, the tool can effectively reduce the cutting force and cutting temperature, reduce tool wear and improve tool life, and can be widely applied to dry cutting and cutting of difficult-to-machine materials, and therefore has good practical application value.

The present application belongs to the technical field of oriented silicon steel production, and particularly relates to an oriented silicon steel pickling coil, a preparation method thereof and an oriented silicon steel finished product. The preparation method comprises the following steps: heating a continuous casting slab, and performing dephosphorization treatment on the heated continuous casting slab; performing hot continuous rolling on the dephosphorized continuous casting slab to obtain a hot-rolled coil; cooling the hot-rolled coil in a protective atmosphere to obtain a strip, and performing shot blasting treatment on the strip; and performing pickling on the shot-blasted strip in an acid solution added with a pickling promoter. During the pickling process, the pickling time of the head of the strip is 90-100s, and the pickling time of the tail of the strip is 110-120s. The pickling promoter comprises a complexing agent composed of a sulfite and a furan dione derivative containing a carbon-carbon double bond. The oriented silicon steel pickling coil prepared by the method has clean pickling of the surface scale, and the surface of the strip after decarburization annealing is metallic luster. The silicon steel finished product prepared from the pickling coil has excellent magnetic properties and coating adhesion.