Several typical pre-treatment process-Wuxi Delixin Automation Equipment Co., Ltd.


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    Several typical pre-treatment process
      
    Several typical pre-treatment process
    News Source: | Release Time:2021-02-23

    1 Auto Body class

      Such parts are welded cold-rolled plate stamping, the workpiece can not rust, even with a very small amount of rust spots should also be polished off before. Cathodic electrodeposition primer, higher pre-treatment requirements.The typical process:
      (1)Manually pre-rub;
      (2)Pre-degreasing spray,50~70℃,1min
      (3)The degreasing spray - immersion - spray,50~70℃,0.5~2.0~0.5min
      (4)Two water cleaning spray, room temperature,1min
      (5)Surface conditioning spray, room temperature,1min
      (6)The phosphate spray - immersion - spray,50~60℃,1.0~3.0~0.5min
      (7)Water cleaning spray, room temperature,1min
      (8)Circulating deionized water spray, room temperature,1min
      (9)Fresh deionized water spray, room temperature,1min
      6.2 Household appliances
      Is generally cold-rolled plate stamping, a very small amount of rust polished off in advance. Main workpiece refrigerators, washing machines, air conditioners, household appliances, etc.. Before treatment After treatment, powder coating, is also part of the static electricity or air painting. The typical process:
      (1)Pre-degreasing spray,50~70℃,1min;
      (2)Degreasing spray,50~70℃,1.5min;
      (3)Water cleaning spray, room temperature,1min;
      (4)Surface conditioning spray, room temperature,0.5min;
      (5)Phosphate spray,30~45℃,2.5min;
      (6)Two water cleaning spray, room temperature,1min;
      (7)Deionized water spray, room temperature,1min;
      (8)Drying 10~140℃,10min。
      6.3 Auto parts, cars, modified cars,
      Such quantity is not very big, so a long time in the process, the workpiece with rust, scale, oil and other. The commonly used process:
      (1)Soaked in degreasing rust "Combo",15~40℃,10min;
      (2)Water cleaning soak at room temperature,1min ;
      (3)And soak at room temperature,1min;
      (4)The table adjustment soak at room temperature,1min;
      (5)Phosphate soaked,15~40℃,10min;
      (6)Water cleaning two immersion at room temperature,1min;
      (7)Drying 110~140℃,10min。
      6.4 Bicycles, motorcycles, tractors class
      For most of the workpiece, rust, oxide, oil, yields are generally larger and require fast processing speed. The general process is:
      (1)Soaked in degreasing rust "Combo",60~70℃,50~70℃,10min;
      (2)Water cleaning soak at room temperature,1min;
      (3)And soak at room temperature,1min;
      (4)The table adjustment soak at room temperature,1min;
      (5)Phosphate soaked,30~70℃,6min;
      (6)Water cleaning two immersion at room temperature,1min;
      (7)Drying 110~140℃,10min。



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