| 摘要 |
A spray applicator for spraying polyurethane in a spray forming process is provided with a jacket that partially encloses a portion of the spray applicator and retains a heated gas that is supplied from a source of heated gas. The spray tool receives polyurethane forming components at one end that are dispensed into a nozzle at the opposite end. The gas heats the polyurethane mixture within the spray tool and is then emitted from the jacket to heat and shape the polyurethane spray. A method of spray forming an article with a reactant mixture is also disclosed. The method comprises heating a reactant mixture in a spray applicator as it sprays the mixture. The spray pattern is shaped by impingement of the heated gas on the reactant mixture as the heated gas is released from the jacket.
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