1. Bell-Bell Technology: ESTA is usually used to spray the first metal paint and the second metal paint is sprayed with automatic air spray gun. The purpose of using automatic air spray gun is to improve the flash effect of metal aluminium powder and to The spraying efficiency of air spraying gun is only about 30%, the utilization rate of paint is low, and the paint fog is big in the spraying process. Overspraying fog is easy to cause Paint film defects, which leads to the increase of paint rework rate. The latest trend is to use Metallic-Bell instead of air-jet gun. ABB, Duerr and Sames all have patented technology for this kind of spray cup.
Metallic-Bell’s spray cup has a greater rotational speed and air volume than the ordinary spray cup, and the diameter of the new type of spray cup is larger than that of the ordinary spray cup, and the edge of the spray cup has a sharp edge The characteristics of make the particles of metal paint drier and smaller after atomization, thus achieving the same flash effect as air spray gun.
By using ESTA/ESTA instead of ESTA/Spraymate, the paint utilization rate can be increased from 40%-50% to 70%-80%, the metal paint consumption per car can be reduced by about 0.7 kg, and the rework rate can Be reduced by 2%-4%. At present, the technology has been used in the painting line of Japanese joint ventures (such as Suzuki, Changhe, Jiujiang).
2. Ro-Dip Conveying Technology
Rosing can be translated into full-spin reverse impregnation technology in Chinese, which is a patent technology of Duerr Company. Full rotation means that the body can rotate freely at 360 degrees. Reverse impregnation means that when the body enters the groove, it Rotators 180 degrees upwards at the bottom and backwards at the tail, then rotates 180 degrees out of the groove.
Ro-Dip transport technology solves the problems that can not be solved by suspension chain and double pendulum chain, such as completely eliminated the pollution of dripping water, oil and liquid from conveying system to car body and tank liquid, solving the bubble problem of front And rear cover and roof chamber, and greatly reducing the entrainment of tank liquid due to the rotation of car body out of tank. After pretreatment and electrophoresis using Ro-Dip transport technology, the deposit of electrophoretic paint on the body plane is reduced, the Leveling is good, the film is smooth and meticulous, thus reducing the workload of polishing; the electrophoretic film is more uniform; the quality of the electrophoretic film in the inner chamber is greatly improved.
Ro-Dip transportation technology can save investment costs, shorten the length of the conveyor chain, and reduce operating costs, such as saving chemical consumption, water saving, electricity saving, energy saving, low maintenance costs and so on. Is adopted in Shanghai Volkswagen Polo pretreatment and electrophoretic coating production line.
3. VarioShuttle Transport Technology
VarioShuttle, also known as multi-functional shuttle, is Eisenmann’s patented technology. The conveying system has three driving devices, ie walking driving device, swing driving device and rotating driving device.
VarioShuttle conveying technology is characterized by optimizing different immersion angles, turning modes and forward speeds according to different types of vehicles to meet the best handling mode. In order to get the best quality, through the control of PLC, the body can pass through the groove Flexibly in different positions and directions.
Using VarioShuttle conveying technology, the body can swing in the tank to eliminate the bubbles in the part of the body; the body can be dripped completely above the immersion tank to minimize the entrainment of the tank liquid; the length of the tank body can be Reduced to the shortest due to different speeds, even stop and retreat; and the depth of the tank body can be made as deep as possible by tilting rather than completely turning over. The reduction of groove volume can reduce the space occupied, and save the First feeding, energy consumption and clean maintenance workload. At present, FAW-Volkswagen New Line has adopted VarioShuttle transmission technology.
