The chemical milling of aluminum alloy technology of low toxicity aluminum alloy chemical milling DDHX-1 protection coating experimental is studied

and the influences of the pretreatment

protective coating thickness

curing temperature and environmental conditions on the low poison chemical milling protection coating are groped. Results show that choosing the appropriate pretreatment

control the thickness of the protective coating

to adopt heating curing when relative humidity is big

the etching ratio after the chemical milling can completely meet the requirements

and edges tidy

stripping is good. The turning and milling protection coating in relative humidity<70%

curing at room temperature can be taken to save energy. Chosen gas and mixed xylene system as solvents

reduce toxicity and improve the environment.