FIELD: machine building.
SUBSTANCE: invention refers to chemical treatment of metals and can be used at chemical processing metal items for removal of oxides and hydroxides of iron of various origin, and also for preparing surface of items before following process application of varnish-and-paint coating. The agent contains 25-35 wt % of phosphoric acid, 1-5 wt % 1,3,5,8-tetra-methyl-2-vinyl-4-ethyl-6, γ-cyclopenthenon-10 -methyl-propionyl-7-phytyl-propionyl-chlorine, 8-14 wt % starch, water - the rest.
EFFECT: fast and efficient removal of metal oxides and hydroxides of various origin at room temperature, protection of cleaned surface from over pickling; and additionally, surface of treated items is phosphated, which increases service life of applied varnish-and-paint coating.
1 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| MEANS FOR CLEANING OF MANUFACTURED ARTICLES FROM CORROSION PRODUCTS | 2007 |
|
RU2365682C2 |
| METHOD OF REMOVING IRON OXIDES AND HYDROXIDES FROM SURFACE OF STEEL OBJECTS | 1997 |
|
RU2119553C1 |
| AGENT FOR CHEMICAL REMOVAL OF CORROSION DEPOSITS FROM METAL SURFACES | 2012 |
|
RU2500795C1 |
| COMPOSITION FOR REMOVING ATMOSPHERE CORROSION PRODUCTS FROM SURFACE OF STAINLESS STEEL | 1994 |
|
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| COMPOSITION FOR REMOVING ATMOSPHERIC CORROSION PRODUCTS FROM SURFACE OF CORROSION-RESISTANT STEEL | 2014 |
|
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| LASER SCALE REMOVAL METHOD | 2005 |
|
RU2405863C2 |
| DEVELOPMENT METHOD OF HIGH-STRENGTH HARDWARES FOR MOUNTING OF HEAVY STRUCTURES AND INHIBITORY COMPOSITION FOR ITS TREATMENT | 2007 |
|
RU2354748C2 |
| COMPOSITION FOR PHOSPHATATION OF METALLIC SURFACES | 2003 |
|
RU2241069C2 |
| METHOD OF TRANSFERRING METALS FROM HYDROCARBON PHASE INTO AQUEOUS PHASE, COMPOSITION FOR IMPLEMENTING THIS METHOD, PROCESSED HYDROCARBON EMULSION | 2003 |
|
RU2346024C2 |
| PHOSPHORIC ACID-BASED COMPOSITION FOR METAL SURFACE PHOSPHATING | 2023 |
|
RU2817628C1 |
