Refrigerated container plate pretreatment roller coating device and processing technology thereof

Abstract

The invention provides a refrigerated container plate pretreatment roller coating device and a processing technology thereof.The device comprises a roller coating device, a drying device and a guiding assembly, an upper-layer roller coating chamber provided with an upper-layer roller coating machine and a lower-layer roller coating chamber provided with a lower-layer roller coating machine which are communicated with each other are arranged in the roller coating device, and conveying of a steel belt is achieved through the guiding assembly; and the conveying line comprises an upper-layer roller coating chamber, a drying device, a lower-layer roller coating chamber and a drying device. By arranging the upper-layer roller coating chamber and the lower-layer roller coating chamber, double-sided local area roller coating of the steel belt is achieved; and in the roller coating process, the single face is pre-dried through the drying room, and the processing performance in the double-face roller coating construction process is guaranteed. After the refrigerated container plate pretreated by the device is subjected to final assembly, only the welding bead area needs to be subjected to sanding and primer treatment, and overall secondary sanding is not needed, so that the workload is saved, the use of auxiliary materials is reduced, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the field of refrigerated container board pretreatment, in particular to a refrigerated container board pretreatment roller coating device and a processing technology thereof. Background technique [0002] The main structure of the side beam of the reefer container includes the top side beam, the top side beam (located on the side plate part) and the bottom side beam (located on the bottom frame part), mostly made of carbon steel; there is an assembly relationship with the top and bottom side beams The main ones are the outer top plate, the outer plate and the bottom wave plate, which are mostly made of stainless iron. In order to ensure good welding process performance, generally the surface where the top side beam, the bottom side beam and the stainless iron plate are overlapped is not subjected to shop primer. [0003] However, in the process of cold working of the top and bottom side beams to assembly and final assembly, f...

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Problems solved by technology

[0003] However, during the process of cold working of the top and bottom side beams to partial assembly and final assembly, flash rust is likely to occur in a long period before sand blasting and painting, which will affect the actual effect after painting and the carbon steel parts such as the top, bottom, and side beams of the box. At the same time, after the final assembly of the box body, it is necessary to perform secondary sandblasting surface treatment on all carbon steel top, bottom and side beam surfaces, resulting in process waste and waste of man-hours; in order to ensure process performance and corrosion resistance at the same time For this reason, it is necessary to improve the equipment and process methods to meet the pre-coating treatment of shop primer on the local areas on both sides of the top side beam and bottom side beam

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