Aluminum Threaded Curved Tube

fay@pride-cnc.com
Block D, Dianlian Science Park, Matian St., Guangming District, Shenzhen 518106, China

+8613477665385

 13477665385

The Machining Method Is Used for Bee Slope Processing

1. The surface of the machined bee should be flat, free of burrs and flying edges. The form of the bee mouth is generally V-type, no blunt edge, the angle of the bee mouth 70 to 75 degrees C is appropriate. Different wall-thick butt welds should have a transition segment of 14O.

2. Prepare before welding.

Before welding, the solder wire, weld pipe bee end and its bee surface and its bee surface within the range of 30 to 50 mm of oil and oxidation film removed, the removal order and method is as follows: with acetone or carbon tetrachloride and other organic solvents to remove surface oil, the slope inside and outside the removal range should not be less than 50mm. After the removal of oil, the weld wire is chemically used, the slope is easy to use mechanical method, and the test tube is also chemically removed from the surface oxide film. Mechanical method, is the bee end and its nearby surface can be used to cut, scrape, mill or with about 0.2mm stainless steel brush to remove to reveal the metal, the removal range on both sides from the edge of the bee end should not be less than 30mm, the use of the tool regularly skimming treatment. Chemistry. It is soaked for 30 to 60 seconds with a NaOH solution of about 70 degrees C 5 to 10%, or for 3 minutes with a temperature of 5 to 10% of the NaOH solution. Then soak at about 15% HNO3 (room temperature) for about 2 minutes and wash with warm water. Or rinse with cold water and let it dry completely. For welding wires that have been reliably surfaced, not oxidized or contaminated, the above treatment can no longer be used directly. Clean up the bee and wire, should not be tarnished before welding, if there is no effective protective measures, should be welded within 8 hours. Otherwise, the cleanup should be carried out again. When the pipe group is aligned, the inner wall should be flat, no burrs, grain chips, the amount of its wrong edge should be in line with b .5mm. The inner unlined weld port requires the gap to be equal to zero as much as possible, especially at the welding site, and the inner wall of the tube should be poured 1 to 1.5mm fillets.

3. Precautions for welding machines and others.

The welder must be an AC TIG welder with a steep drop in external characteristics and sufficient electrical capacity. And there are parameters stable, flexible adjustment and safe and reliable use performance, should also have arcing, arc stabilization and elimination of DC component device, welding machine current, voltometer should be certified by the metering department qualified, welding machine before use, first check whether the ground is intact, cooling water and gas channels are smooth, its functions must ensure that it can work properly. Welding sites should be kept clean. In addition to the wind, rain and snow facilities, should also ensure that the relative humidity of welding is 80%, the ambient temperature of 5 degrees C.

Hot Tags: aluminum threaded curved tube, China, manufacturers, suppliers, factory, wholesale, customized, made in China