http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111394770-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23G1-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-026 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-12 |
| filingDate | 2020-05-08^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-22^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-10-22^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111394770-B |
| titleOfInvention | Magnesium-aluminum alloy surface coating process |
| abstract | The invention discloses a magnesium-aluminum alloy surface coating process, which comprises the following steps: s1: pretreatment: putting the magnesium-aluminum alloy workpiece into pretreatment liquid, carrying out ultrasonic treatment for 4-6 min, washing, vacuum drying and polishing; s2: micro-arc oxidation treatment: placing a workpiece into a micro-arc oxidation electrolyte, using a stainless steel plate as a cathode, performing micro-arc oxidation for 5-8 min, adding zirconium oxide-silicon oxide sol with the volume of 7.5-10% into the electrolyte, uniformly mixing, and continuing micro-arc oxidation treatment; the micro-arc oxidation electrolyte is composed of a hydrosolvent and the following concentration components: 10-15 g/L of sodium fluoride, 6-10 g/L of sodium silicate, 3-5 g/L of polyepoxy sodium succinate and 3-5 g/L of sodium hydroxide; s3: surface hydrophobic treatment: coating the poly (trifluoropropylmethyl siloxane) on the surface of the workpiece, and curing and heat treating. According to the invention, the zirconia-silica sol is doped into the micro-arc oxidation electrolyte, and the micro-arc oxidation treatment and hole sealing treatment are realized by a one-step method, so that the structural stability of the ceramic membrane is greatly improved, and the porosity of the ceramic membrane is also reduced. |
| priorityDate | 2020-05-08^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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