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Affinity For Die-casting Alloys And Steel
Feb 24, 2017

Sticking defect on the casting of harm is: when casting skin sticking, the light rough surface, affecting the appearance of roughness; heavy surface peeling, lean, strain, tension, also leads to castings leakage, resulting in stainless steel scrap in bulk. Casting sticking phenomenon has a lot, cause the basic reason for sticking with the following.

Alloy and steel affinity

Die casting alloys with the greater affinity of mould steel, the easier it is fused to each other and bonded together. Die-cast alloy with wall glue will produce a larger release resistance, occurred while casting mold strain. Visual sticking parts of casting surface roughness, peeling or missing parts in die mark (Note: to be distinguished from the carbon), in terms of worst case casting is tear damage. Visual mold cavity surface to glue a pressure casting alloys, colour white.

Die casting alloy liquid spray or flowing after blast-wall or core, make the wall or core temperatures, at high temperature liquid alloy die steel fusion welding with the wall and adhered to each other. Alloys higher fluid temperature, injection speed, mold temperature, mold hardness lower affinity of liquid aluminum alloy and steel will increase, more prone to melting and bonding glue. Adhesive die-cast alloy during die casting mold on the surface, cavity and surface pultrusion tear, cortex torn surface, surface sticking injury occurred.