Pickling and shot blasting of forgings

Core tips: Forgings are widely used in industry, such as: aircraft, cars and so on. Of course, forgings also need to be cleaned, the following mainly to tell you about the pickling and shot blasting cleaning phase of forgings

Forgings are widely used in industry, such as aircraft, cars and so on. Of course, forgings also need to be cleaned. The following mainly tells you about pickling and shot blasting of forgings.

Pickling and cleaning of forgings:

A chemical reaction is used to remove the metal oxide coating. Small and medium-sized forgings are usually packed in batches into the net basket, after oil removal, pickling corrosion, rinses, blow drying and other processes to complete.

Pickling method has the characteristics of high production efficiency, good cleaning effect, no deformation of forgings, shape is not restricted. Gas harmful to human body will inevitably be produced in the process of pickling chemical reaction, therefore, pickling room should have exhaust device. Pickling different metal forgings should be based on the metal properties to choose different acid and composition ratio, the corresponding pickling process (temperature, time and cleaning method) system.

Sandblasting (shot) and shot blasting cleaning of forgings:

Mainly based on the compressed air as the power of sandblasting (shot), the sand or steel shot to produce high-speed movement (sandblasting pressure of 0.2 ~ 0.3MPa, shot peening pressure of 0.5 ~ 0.6MPa), spray to the forging surface to knock off the oxide skin. Shot blasting is based on the centrifugal force of rotating impeller at high speed (2000 ~ 30001r/min) to shoot the steel shot to the surface of the forging and knock off the oxide skin.

Sandblasting cleaning dust, low production efficiency, high cost, mostly used for forging with special technical requirements and special materials (such as stainless steel, titanium alloy), but must use effective dust removal technical measures. Shot peening is relatively clean, but also has the disadvantages of low production efficiency and high cost, but the cleaning quality is high. Shot blasting cleaning has high production efficiency, low consumption, and is widely used.

The above is the forging pickling and shot blasting related cleaning knowledge, I hope to help you.

this is open die forgings produced by tongxin precision forging company: