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Steel pipe inner wall shot blasting cleaning machine working principle: using compressed air shot injection to the inner wall of the steel pipe and the metal surface to produce plastic deformation, and the formation of strengthened layer. The fatigue strength of bending and stress corrosion was significantly increased. The surface layer effect of shot peening is better than that of metal tube with smooth surface.

Our company developed the inner wall of the steel tube shotblasting cleaning machine, suitable for cleaning pipe diameter lower 200 - Phi 2500, all specifications of steel in a device that can complete the wall cleaning. The machine can be used in wiring, mature technology, high production efficiency.

Steel pipe inner wall shot blasting machine utility model relates to a spray gun for steel tube inner wall reinforced peening, especially strengthening austenitic heat-resistant stainless steel tube inner wall to improve the high-temperature steam oxidation corrosion resistance performance of the inner wall of the steel tube shot peening with a spray gun. It has a nozzle and a spray rod and the nozzle assembly on the front end of the spray rod and the nozzle has an outer tube and a flow guide core, and the front end of the guide flow core has a large head, in the nozzle guide core and the outer tube front opening is formed between a pill and gas mixed flow ejected by the annular gap, shot, and source energy and steel shot gather in narrow annular gap is ejected, along the circumference of the pipe wall to generate distribution uniform corrosion resistance to high temperature oxidation hardening layer. The spray rod is a linear austenitic stainless steel tube, the length direction is not plasticity can ensure that shot peening velocity remained unchanged in the whole steel tube and on the inner wall of steel pipe to generate uniform hardening layer; in addition the shape of the spray rod with length to diameter than the flexible design have help to the inner wall of the nozzle and the pipe automatically in.

Characteristics of shot blasting machine for steel pipe inner wall:

1, the structure is compact, the use is mature, the area is small.

2, the operation is simple, the production efficiency is high.

3, the workpiece tilt down pills, saving height, good rigidity, easy to flow out of the projectile.

4, using the spray gun movement form, the spray gun is positioned correctly, without dislocation.

5, sand valve using CLEMCN technology, a large amount of shot, pellet delivery stability.

6, working way: the diameter of more than 100mm of the steel pipe using the workpiece rotation shot blasting method; diameter less than 100 of the steel tube for special spray gun, using the workpiece does not rotate shot blasting the way.