At present, the manufacturing process of most effective steel containers in China is as follows:

钢材开卷、轧平→剪切→抛丸→喷车间底漆→烘干→冷加工、成型→部件组装、焊接→总装配、焊接→整箱焊喷砂→预徐底读→喷底漆平、烘干→中层漆、内面漆预涂→中层漆、外面漆喷涂→流平、烘干→外面漆预涂。外面漆喷徐→流平，烘干→完工线装配→铭牌、密封胶、标贴→箱底沥青漆及水密试验一成品箱出线。

Steel uncoiling and flattening → shearing → shot blasting → shop primer spraying → drying → cold processing and forming → component assembly and welding → general assembly and welding → whole box welding and sand blasting → pre Xu bottom reading → first-class leveling and drying of primer spraying → precoating of middle paint and inner finishing coat → spraying of middle paint and outer paint → leveling and drying → precoating of outer paint. External paint spraying → leveling and drying → assembly of finished line → nameplate, sealant and label → asphalt paint at the bottom of the box and water tightness test - outgoing line of finished box.

从上述工艺流程可以看出，集装箱除装要与整个集装箱制造工艺过程相适应。在流水线的涂装工位上，如在焊缝喷砂及中层漆、面漆喷涂中超时工作或出了纰漏,就会造成生产节拍放慢或全线瘫痪。以喷漆为例，无论是自动喷漆,还是手工喷漆,必须达到要求,符合生产节拍,7一8 分钟内完成喷漆及供干。如果外面漆、漆膜末烘千，无法进行工线的装配和商标黏贴等;一次喷漆的厚度必须达到规定膜厚的要求,且膜厚均匀;涂层外观质量无针孔、气袍、流挂等现象。

From the above process flow, it can be seen that the container unloading should adapt to the whole container manufacturing process. In the painting station of the assembly line, if overtime work or mistakes are made in weld sand blasting, middle paint and finish paint spraying, the production pace will slow down or the whole line will be paralyzed. Take painting as an example. Whether it is automatic painting or manual painting, it must meet the requirements, meet the production beat, and complete painting and drying within 7-8 minutes. If the exterior paint and paint film are baked for thousands, the assembly of the work line and trademark pasting cannot be carried out; The thickness of one-time painting must meet the requirements of the specified film thickness, and the film thickness must be uniform; The appearance quality of the coating is excellent, without pinholes, gas robes, sagging and other phenomena.