| Prior process is the procedure to clean the oxidation hull,rust.Grease and dust etc. On the |
| surface of workpiece before coating to make the spraying powder dust fasten and accrete to the |
| metal surface to obtain high quality for the product and extend its life. |
The general flow of prior line is :degreasing Wash with water WashSurface |
| adjustment InvolucraWash by water Wash(Adjustable freely according to the characteristic |
| of workpieces) |
 Spraying |
The process of spraying is making use of the principle of spraying & pouring,make the drug |
| liquid constantly act on the surface of workpiece,with strong continuos workingand high efficiency |
| which apply for the operation request of large quantities of workpiece and with good effect inthe |
process of the bigger tube parts,long parts and goods with easy structure,and save the ground |
space by means of overhead structure.
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Auto spraying situation |
Sketch map of spraying slot operation |
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Prior spraying & coating process of microwave oven |
Spraying washing slot of prior process |
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| Steeping & Swimming |
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| Steeping |
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| This mode is to hang the workpiece to dip |
into the liquid or rinsing pool through the |
| travlling crane , complete the process of |
| the workpiece sufarce by means of |
physical and chemical mode. |
 Apply to the workpiece in complex and |
| bad rust surface |
Setting windpipe inside the slot of |
| degreasing and involucra,mix round the |
| liquid to ensure the expected result. |
Setting heating device inside the slot to |
| improve the process efficiency based on |
| the specific cases of workpiece. |
Easy setting and low cost. |
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