HVOF Tungsten Carbide coatings are deposited by thermal spray. During this process, fuel gas & oxygen are pre-mixed, & provided at high-pressure into a discharge enclosure, where they burn to have a burning, high-pressure gas stream. Tungsten carbide powder bits are infiltrated directly into this combustion area of gun underneath automatic control. As high-velocity gas stream (containing semi-molten powder ) is supervised toward substrate, impact also deposition of the particles on surface assembles a wide, uniform coating, typically with< 1% porosity, an oxide content of < 1%, & a bond strength in excess of 80 MPa (10 ksi). HVOF coating process is maintained release in a spray booth, with a robotic apparatus.
A bunch of smallish elements & thin-wall castings, ceramics, delicate iron & aluminum alloy castings, & various job piece surface cleaning applications utilize belt type shot blasting machines. Carefully arranging multiple smallish jobpieces subsequently to severally other on a wire mesh belt can improve machine output.