Tag
#casting
4 topics across all disciplines.
Installing refractory — casting, gunning, ramming and hand packing
The four ways monolithic refractory gets onto a wall, what decides quality in each, why rebound is never reused, why self-levelling castables must not be vibrated, and why plastic refractory may not have water added on site.
Sand casting and gravity die casting
How a mould is actually built — pattern, cores, gating and risers — why every pattern is made oversize, what draft and parting line mean for the part you get, and what tolerance a casting can honestly hold.
Die casting and investment casting
High pressure die casting and the lost wax process compared — what each buys in tolerance, wall thickness and geometry, why die cast parts cannot be heat treated or welded, and how to choose between them.
Casting defects and design for casting
Shrinkage porosity, gas porosity, cold shuts, inclusions and hot tears — what each looks like, what actually causes it, and the design rules that prevent most of them before a mould is ever made.