Problems that need to be paid attention to in the pre-treatment process of cast molded parts

The use of aluminum alloy products is getting more and more. And some products with very high quality are usually made of aluminum products manufacturer Haomei. And today we are going to talk about the problems that need to be paid attention to in the pre-treatment process of cast molded parts and the manufacturer Haomei aluminum.

Problems that need to be paid attention to in the pre-treatment process of cast molded parts

Not all surfaces of cast molded parts are machined, the unmachined surface is left with a thick oxide layer formed during the casting process, and some are also sandwiched with a sand layer, at this time should first use machining or sandblasting method to remove the original oxide film of this part, or after alkali washing and then processing, only in this way can not only remove the original oxide layer of the unprocessed part, but also avoid the change of the tolerance size of the machining part.

The workpiece after heat treatment or welding process needs attention in the pretreatment process: according to the process requirements, the workpiece needs to be cleaned by organic solvents before transferring to the heat treatment or welding process, and the surface oil is removed, but at present, it is generally impossible to do this, so the surface of the workpiece forms a layer of oil sintered coke, this layer of coke is difficult to remove in the organic solvent, if soaked in the lye will cause local corrosion, pockmarks or unevenness, seriously affecting product quality. Soak this layer of coke with concentrated nitric acid soaking, and then wash it in the lye after the coke is soft, and then completely remove it.

If you need to buy aluminum plate, you can contact us, we provide most of the above two fine aluminum plate and five series aluminum plate and seven series aluminum plate for sale. Their quality is very good, and because our factory can make it ourselves, sell it at factory prices, quite cheap. Haomei aluminum is a professional aluminum plate manufacturer. We do hope to offer you whatever the help you need. You can click the box on the right side and enter the item that you wanna ask about then we will reply back very soon and give you help.