SU908933A1 - Method for treating coatings - Google Patents
Method for treating coatings Download PDFInfo
- Publication number
- SU908933A1 SU908933A1 SU772535416A SU2535416A SU908933A1 SU 908933 A1 SU908933 A1 SU 908933A1 SU 772535416 A SU772535416 A SU 772535416A SU 2535416 A SU2535416 A SU 2535416A SU 908933 A1 SU908933 A1 SU 908933A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coating
- coatings
- steel
- specific pressure
- running
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims description 42
- 238000000034 method Methods 0.000 title claims description 12
- 239000011248 coating agent Substances 0.000 claims description 29
- 230000007547 defect Effects 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 238000002425 crystallisation Methods 0.000 claims description 7
- 230000008025 crystallization Effects 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 239000011701 zinc Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 230000003252 repetitive effect Effects 0.000 claims description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 claims 2
- 239000008397 galvanized steel Substances 0.000 claims 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 210000003298 dental enamel Anatomy 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 229920002313 fluoropolymer Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 239000002966 varnish Substances 0.000 claims 1
- 238000001953 recrystallisation Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
(54) СПОСОБ ОБРАБОТКИ ПОКРЫТИЙ(54) COATING TREATMENT METHOD
1one
Изобретение относитс к нанесению металлических покрытий из расплавов, в частности, к последующей обработке покрытий, нанесенных на стальную подложку дл улучшени The invention relates to the application of metallic coatings from melts, in particular, to the subsequent processing of coatings deposited on a steel substrate to improve
их СВОЙСТВ.their PROPERTIES.
Известен способ обработки металлического, например цинкового покрыти , на стали нанесенного погружением подложки в расплав, путем обкатки роликами, формирующими покрытие соответствующей толщины при регулируемом давлеиии 1.A method of treating a metal, for example, a zinc coating, on a steel applied by immersing a substrate into the melt is known, by rolling with rollers forming a coating of appropriate thickness with adjustable pressure 1.
Однако известный способ предназначен дл устранени блесток, т.е. узора кристаллизации на покрытии, и осуществл етс в интервале температур выще температуры кристаллизации металла.However, the known method is intended to eliminate glitter, i.e. crystallization pattern on the coating, and is carried out in the temperature range above the crystallization temperature of the metal.
Наиболее близким к предлагаемому вл етс способ обработки цинкового покрыти на стали обкатки правильными роликами в интервале температур между температурой кристаллизации и рекристаллизации 200-350° С 2.The closest to the present invention is a method of treating a zinc coating on the rolling of steel with correct rollers in the temperature range between the crystallization and recrystallization temperatures of 200-350 ° C 2.
Однако при осуществлении известного oioсоба в процессе плавки оцинкованной полосы происходит изменение механических СВОЙСТВ подложки, ЧТО нежелательно дл стальной полосы, прощедэшей термообработку, с , целью придани ей необходимых механических СВОЙСТВ, например, в агрегатах непрерывного цинковани .However, when a known oio process is carried out during the smelting of a galvanized strip, the mechanical properties of the substrate change, which is undesirable for a steel strip that has been heat treated, with the aim of giving it the necessary mechanical properties, for example, in continuous zinc units.
Цель изобретени - повыщение равномерности покрытий без изменени Механических СВОЙСТВ подложки.The purpose of the invention is to increase the uniformity of coatings without changing the mechanical properties of the substrate.
10ten
Поставленна цель достигаетсй тем, что способ обработки покрытий, нанесенных на стальную подложку погружением в металлические расплавы, путем обкатки роликами в интервале температур, между температурой The goal is achieved by the fact that the method of treatment of coatings deposited on a steel substrate by immersion in metal melts, by rolling with rollers in the temperature range between the temperature
ts кристаллизации и температурой рекристаллизации , обкатку ведут при удельном давлении 03-09 предела текучести металла покрыти .ts crystallization and recrystallization temperature, run-in is carried out at specific pressure 03-09 of the yield strength of the metal of the coating.
Способ позвол ет уменьпшть высоту поверхностных дефектов покрыти до 5-20, мкм The method allows to reduce the height of the surface defects of the coating to 5-20 µm.
20 без изменени механических свойств подложки . При осуществлен и способа обкатку ведзгг в интервале температур между температурой кристаллизации и рекристаллизации покрыти , который, например дл шшкового покрыти , составл ет 180 - 380 С. При этом осуществл ют обкатку покрыти , которое уже закристаллизовываетс , но еще обладает высокой пластичностью, т.е. когда в нем не концентрируютс остаточные напр жени деформации. Нижний предел выбранного интервала удельных давлений обкатки позвол ет уменьшить высоту поверхностных дефектов покры ти до 5-20 мкм, а при удельных давлени х больше верхнего предела происходит пластическа деформаци подложки и возможно налипание покрыти на ролики. Выпуклые дефекты металлических покрытий , к которым относ тс гартцинк, алюминиева сторонка, дендритна кристаллизаци , наппви, бугорчатое шероховатое покрытие, называемое выпуклой строчкой и др., предшествуют дальнейшей качественной окраске таких покрытий. Обработка покрытий по указанному режиму позвол ет производить пластическую деформацию участков покрыти , имеющих выпуклые дефекты, без эластической деформа1щи не только подложки, но и покрыти на бездефектных местах. Пример 1. Стальную полосу с дефектом в виде царапин, который вызывает дефект цинкового покрыти в виде выпуклой строчки после гор чей прокатки, пропускают через цинковый расплав, а затем через установку воздушного струйного регулировани толщин цинкового покрыти . Затем полосу с покрытием толщиной 22-24 мк направл ют в зазор между обкатными роликами . Обкатку осуществл ют в интервале температур от 150 до 400° С и при удельном давлении от 0,5 до 15 кг/мм. После обкатки измер ют остаточную высоту раскатанной выпуклой строчки, а также оценивают качест во покрытий по наличию трещин (Тр) и дефекта в виде повтор ющегос отпечатка ролика (Р(). Результаты обработки представле}пы в таблице . Как видно из да1шых таблицы обкатка при температуре ниже 200° ведет по влению20 without changing the mechanical properties of the substrate. When the method was used, the run-in of the temperature range between the temperature of crystallization and recrystallization of the coating, which, for example, for the coniferous coating, is 180-380 ° C, is done. The coating is run-in, which already crystallizes, but still has high plasticity, i.e . when the residual strains are not concentrated in it. The lower limit of the selected interval of the specific rolling pressure reduces the height of the surface defects of the coating to 5–20 µm, and at specific pressures above the upper limit, the substrate undergoes plastic deformation and the coating may adhere to the rollers. The convex defects of metallic coatings, which include hard zinc, aluminum side, dendritic crystallization, napri, curvaceous rough coating, called convex stitching, etc., precede further qualitative coloring of such coatings. The treatment of the coatings according to the indicated regime makes it possible to produce plastic deformation of the areas of the coating that have convex defects, without elastic deformation not only of the substrate, but also of the coating on defect-free areas. Example 1. A steel strip with a defect in the form of scratches, which causes a defect in the zinc coating in the form of a convex stitch after hot rolling, is passed through a zinc melt and then through an air jet adjustment unit for the thickness of the zinc coating. Then, a strip with a coating of 22-24 microns is guided into the gap between the rolling rollers. The run-in is carried out in the temperature range from 150 to 400 ° C and at a specific pressure of from 0.5 to 15 kg / mm. After running in, the residual height of the rolled convex line is measured, and the quality of the coatings is assessed by the presence of cracks (Tp) and a defect in the form of a repetitive roller print (P (). The processing results are shown in the table). temperature below 200 ° leads to
149 Тр 126 Тр 6 Тр 38 Тр 20 Тр 149 Tr 126 Tr 6 Tr 38 Tr 20 Tr
150 3821 19 15 7 200150 3821 19 15 7 200
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772535416A SU908933A1 (en) | 1977-10-20 | 1977-10-20 | Method for treating coatings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772535416A SU908933A1 (en) | 1977-10-20 | 1977-10-20 | Method for treating coatings |
Publications (1)
Publication Number | Publication Date |
---|---|
SU908933A1 true SU908933A1 (en) | 1982-02-28 |
Family
ID=20729568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772535416A SU908933A1 (en) | 1977-10-20 | 1977-10-20 | Method for treating coatings |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU908933A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2465369C2 (en) * | 2008-02-15 | 2012-10-27 | Ниппон Стил Корпорейшн | Steel plate with galvanic coating on zinc basis with good surface electric conductivity, which has primary corrosion-protection thin film layer |
-
1977
- 1977-10-20 SU SU772535416A patent/SU908933A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2465369C2 (en) * | 2008-02-15 | 2012-10-27 | Ниппон Стил Корпорейшн | Steel plate with galvanic coating on zinc basis with good surface electric conductivity, which has primary corrosion-protection thin film layer |
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