Cold-bending production technology integrated with spraying treatment and cold-bending production line integrated with spraying unit

[0028] Example one

[0029] The on-line cold bending production process with integrated spray processing provided by this embodiment transforms the cold-formed strip into a cold-formed component with a specified shape after being formed, and the spray processing is performed before the cold-formed component is formed.

[0030] Among them, the spraying process can not only remove rust, oxides and dirt, but also achieve the required uniform roughness under the action of the violent impact and friction of the abrasive, expand the physical adsorption of the material surface, and enhance The mechanical adhesion of the anti-corrosion layer to the surface of the component. In this embodiment, the sprayed medium can be steel shot or steel grit.

[0031] In this embodiment, see figure 1 , figure 2 , First send the cold strip into a spiral looper 5 for storage and supply, and then, the material supplied by the spiral looper 5 is first sprayed, then molded, sizing and straightened in sequence A

[0043] Example two

[0044] This embodiment provides an online cold bending production process with integrated spray processing. The difference between the online cold bending production process with integrated spray processing in this embodiment and the first embodiment is that the material is sprayed after the cold-formed component is formed. Moreover, in this embodiment, the cold-formed member can be either an open profile or a closed profile. The closed profile can be one of a square tube, a rectangular tube, a round tube or other heterogeneous tubes.

[0045] Specifically, see image 3 , Figure 4 , The on-line cold bending process of integrated jet processing of this embodiment includes: feeding the cold strip into a spiral looper 5 for storage and feeding, and forming the materials supplied by the spiral looper 5 first After processing and sizing and straightening, spray processing and sizing and cutting are carried out in sequence.

[0046] This embodiment also provides a cont

[0049] Example three

[0050] The difference between the on-line cold bending production process of the integrated spray processing of this embodiment and the second embodiment is that the material needs to be closed welding and cooling treatment before sizing and straightening after the forming process, and the cold-formed component in this embodiment is Closed profiles, not suitable for open profiles.

[0051] Specifically, see Figure 5 , Image 6 , The materials supplied by the spiral looper 5 are first subjected to forming treatment, closed welding, cooling treatment, and sizing and straightening in sequence, and then spraying treatment and sizing and cutting are performed in sequence.

[0052] When the cold-formed component is a closed profile, the surface near the joint section will inevitably be re-oxidized due to high-frequency welding. The on-line cold-formed production process with integrated spray processing in this embodiment not only omits the transition before spray proce