Woodworker's Journal 2001-25-1, страница 59
How Spray Guns Work A spray gun works like a carburetor. It forms liquid into tiny droplets and mixes them with moving air to create an airborne mist. Pulling the trigger releases a controlled pattern of air and finish toward the wood. Most guns have controls to change the size and makeup of that mist pattern. The primary controller is the trigger. The further back you pull it. the more fluid is released into the airstream. The large knob at the back of the fluid pin is a governor. By turning it clockwise, you create a stop that limits how far the trigger retracts, which in turn limits the amount of finish flowing through the nozzle. Either above the fluid knob or to the side of the Up there's usually a smaller knob. This one adjusts the size and shape of the mist pattern. Turn il clockwise to get a smaller, rounder pattern, and turn it counterclockwise for a larger, oval one. Some HVLP guns change from round to oval pattern by rotating the air cap 45 degrees. continues on page 60 ... On almost all spray guns, rotating the air cap 90 degrees will change the fan pattern from a horizontal oval to a vertical oval. Woodworker's Journal February 2001 59 s this for a tool? Click. Get answers to your woodworking questions. Click. Discover links to rare plans or sources for all types of gadgets. Click. Find great bargains in new and used tools. Stays sharp! You'll always find the most up-to-date information at woodworking.com — including access to the latest posts on the rec.woodworking newsgroup. It's the best place to share advice and swap ideas. The best angle: By woodworkers. For woodworkers. |
