ONE-STEP METHODS FOR CREATING FLUID-TIGHT, FULLY DENSE COATINGS

A fluid tight, fully-densified, coating is prepared by a high velocity oxygen fuel (HVOF) process that dilutes oxygen with an inert gas. The inert gas is premixed with oxygen prior to the oxygen entering a combustion chamber. The resultant flame temperature is lowered a controlled amount to eliminate, minimize or reduce the oxidation of power feedstock that is injected into the thermal spray torch. The ability to reduce the flame temperature allows a relatively smaller particle feedstock to be deposited without significant oxidation. The dilution process creates the as-deposited fully-dense, fluid tight coating. 通过用惰性气体稀释氧气的高速氧燃料("HVOF")方法制备不透流体的、完全致密的涂层。在氧气进入燃烧室之前，将惰性气体与氧气预混。将所得的火焰温度降低受控的量，以消除、最小化或减少注入热喷喷枪中的电力原料的氧化。降低火焰温度的能力允许沉积相对较小的颗粒原料而不发生显著的氧化。稀释方法产生沉积态的完全致密的、不透流体的涂层。