SU295479A1 - Method for protecting steel and cast iron products against atomospheric corrosion - Google Patents
Method for protecting steel and cast iron products against atomospheric corrosion Download PDFInfo
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- SU295479A1 SU295479A1 SU671177399A SU1177399A SU295479A1 SU 295479 A1 SU295479 A1 SU 295479A1 SU 671177399 A SU671177399 A SU 671177399A SU 1177399 A SU1177399 A SU 1177399A SU 295479 A1 SU295479 A1 SU 295479A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- cast iron
- iron products
- protecting steel
- products against
- atomospheric corrosion
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
СПОСОБ ЗАЩИТЫ СТАЛЬНЫХ И ' ЧУГУННЫХ ИЗДЕЛИЙ ОТ АТМОСФЕРНОЙ КОРРОЗИИ путем нанесени пассива- торов, отличающийс тем, что, с целью повышени эффективности защиты и исключени предварительного обезжиривани , пассив атор примен ют в смеси с поверхностно-активными веществами.A METHOD FOR PROTECTING STEEL AND IRON PRODUCTS FROM ATMOSPHERIC CORROSION by applying passivators, characterized in that, in order to increase the effectiveness of protection and to avoid preliminary degreasing, passive ator is used in a mixture with surface-active substances.
Description
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4; со Изобретение относитс к области защиты стальнь-х и чугунных изделий от атмосферной коррозии. Известен способ защиты стальных и чугунных изделий от ал-мосферной коррозии путем нанесени пассиваторов . Однако известный способ требует предварительного обезжиривани поверхности и имеет низкую эффективность защиты. С целью исключени указанных недостатков предложено пассиватор примен ть в смеси с поверхностноактивными веществами ОП-7/ ОП-10, ДБ, сульфирол-8 и др. Примерами в зких растворов пасс ваторов, которые используютс в пр лагаемом способе,могут быть растворы состава,, %: 1) NaNOj 20, глицерина 30-70, ЯаСО, 0,5-0,6, ПАВ 0,2-0,4/ 2) NaH02 20, ксилита 30-50, NajCOj 0,5-0,6, ПАВ 0,2-0,4,3 , NaNOg 20, ксилитана 30-50, NagCOj 0,5-0,6, ПАВ 0,2-0,4. В случа х, когда толщина жирово пленки на поверхности металла не превьшает 30 мк, издели могут консервироватьс без предвар т&л - ного обезжиривани . Если толщина жировой пленки превышает 30 мк, то ее можно легко удалить органическим растворителем (бензин, ацетон и Др.). Высока смачивающа способность пассивирующего раствора позвол ет наносить предохранительную пленку пассивирующего раствора не на специальную упаковочную бумагу или бумагудл пропитки (ОДП 28, а непосредственно на внутреннюю (по отношению к металлу;/ сторону парафинированной бумаги, котора служит внешней упаковкой законсервированного издели .. На образцах из стали 3, обезжиренных щелочным раствором с ПАВ и даже законсервированных в зким раствс ом лассиватора без ПАВ, коррози по вл етс значительно быстрее, чем на образцах, которое были законсервированы пассивирующим раствором, содержащим ПАВ, без предварительного ИХобезжиривани (через 30-75 суток соотйетственно при испытании в атмосфере с 100%-ной относительной влажностью .four; This invention relates to the field of protection of steel and cast iron products against atmospheric corrosion. There is a known method of protecting steel and cast iron products from almospheric corrosion by applying passivators. However, the known method requires prior degreasing of the surface and has low protection efficiency. In order to eliminate the above drawbacks, a passivator has been proposed to be used in a mixture with the surface active substances OP-7 / OP-10, DB, sulfirrole-8, etc. Examples of viscous solutions of the vaporizers that are used in the proposed method include %: 1) NaNOj 20, glycerol 30-70, JaCO, 0.5-0.6, surfactant 0.2-0.4 / 2) NaH02 20, xylitol 30-50, NajCOj 0.5-0.6, Surfactant 0.2-0.4.3, NaNOg 20, xylitane 30-50, NagCOj 0.5-0.6, surfactant 0.2-0.4. In cases where the thickness of the fatty film on the metal surface does not exceed 30 microns, the products can be preserved without prior degreasing. If the thickness of the fat film exceeds 30 microns, it can be easily removed with an organic solvent (gasoline, acetone, etc.). The high wetting ability of the passivating solution allows the protective film of the passivating solution to be applied not on special wrapping paper or impregnation paper (ODP 28, but directly on the inner one (with respect to metal; / side of waxed paper, which serves as the outer packaging of the canned product. steel 3, degreased with an alkaline solution with surfactants, and even conserved in viscous solutions of a lasivator without surfactants, corrosion appears much faster than on samples that nd it was conserved passivating solution containing a surfactant without IHobezzhirivani (after 30-75 days sootyetstvenno when tested in an atmosphere with 100% relative humidity.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU671177399A SU295479A1 (en) | 1967-08-28 | 1967-08-28 | Method for protecting steel and cast iron products against atomospheric corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU671177399A SU295479A1 (en) | 1967-08-28 | 1967-08-28 | Method for protecting steel and cast iron products against atomospheric corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU295479A1 true SU295479A1 (en) | 1983-06-23 |
Family
ID=20441014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU671177399A SU295479A1 (en) | 1967-08-28 | 1967-08-28 | Method for protecting steel and cast iron products against atomospheric corrosion |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU295479A1 (en) |
-
1967
- 1967-08-28 SU SU671177399A patent/SU295479A1/en active
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