Industry Applications

Shot blasting is the use of high-speed rotation of the impeller to throw the abrasive out of high-speed impact on the workpiece, the surface to clean; or through high-speed impact to distort the surface of the workpiece lattice deformation, so that the surface hardness increased, the surface to strengthen the treatment of a process.

Before the shot blasting process, a comprehensive check of the overall state of the shot blasting machine, according to the different models of shot blasting machine, choose a reasonable current, blast angle, shot blasting speed, etc.. The quality of the abrasive has a great impact on the quality of the surface treatment of the workpiece, such as the hardness of the abrasive, particle size, metallurgical organization will affect the shot blasting effect.

Steel plate pretreatment

Construction Machinery

Stainless steel plate cleaning

Steel Structure

Pipeline anti-corrosion

Casting cleaning

The surface of the steel is shot peened and then there are many fine crests and troughs, the surface roughness. The coating penetrates to the bottom of the troughs, and the peaks are like teeth that hold the coating tightly in place. Therefore, the surface roughness is described as "anchor" or "mechanical tooth" in the coating industry. If these dirt are covered by the coating, the mechanical and chemical adhesion of the coating will be affected and the coating will fail.

Therefore, sandblasting is needed to provide surface roughness for the coating and chemically to bring the coating molecules into close contact with the steel substrate surface. According to British Imperial Chemical, the coating life is governed by 3 factors: pre-treatment accounts for 60%; coating construction accounts for 25%; and the quality of the coating itself accounts for 15%.

Hull segments

Container

Wind power equipment

Structural steel parts

Port Machinery

Rolling stock

All metal parts that operate under alternating loads and are subjected to cyclic stresses need to rely on a blasting/shot peening process to improve the fatigue life of the part.

It is well known that cracks are difficult to form or extend in a region of compressive stress. Since almost all fatigue and stress corrosion failures occur at or near the surface of a part, the introduction of compressive stresses through shot peening can significantly extend part life. The residual compressive stress strength generated by peening must be half the tensile strength of the part material. Gears are shot peened after heat treatment, and for some critical parts, peening is the final process in production, using a shot peening process to improve the service life of transmission parts.

The use of metal abrasives and the kinetic energy of the water jet to cut granite and other stone, cutting process without chemical changes, with no impact on the physical and chemical properties of the cut material, no thermal deformation, narrow slit, high precision, clean cut surface, no pollution and other advantages.