SU709700A1 - Method of thermal treatment of large-size aluminum alloy articles - Google Patents
Method of thermal treatment of large-size aluminum alloy articles Download PDFInfo
- Publication number
- SU709700A1 SU709700A1 SU772549095A SU2549095A SU709700A1 SU 709700 A1 SU709700 A1 SU 709700A1 SU 772549095 A SU772549095 A SU 772549095A SU 2549095 A SU2549095 A SU 2549095A SU 709700 A1 SU709700 A1 SU 709700A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aluminum alloy
- thermal treatment
- alloy articles
- size aluminum
- heating
- Prior art date
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Description
Изобретение относитс к области метал лургии цветных металлов и может быть использовано дл ; искусственно го старени отжига гомогенизации закалки .крупногабаритных изделий: плит панелей профилей труб штамповок и листов иа алюминиевых сплавов. Известен способ нагрева изделий с поперечной циркул цией теплоносител в рабо чем пространстве печи. Недостатком такого способа вл ютс : нестабильность физико-механических . свойств крупногабаритных изделий после термообработки в этих печах: неравномерна микроструктура, больша анизотропи механических свойств по сечению издели иэ-за неравномерности нагрева низкий выход годного из-за необходимости забраковки части изделий, имеющих неудовлетворительные физико-механическне свойства. Целью изобретени вл етс улучшение физико-механических свойств термообрабатываемых изделий. На фиг.1 изображена печь дл нагрева заготовок: на фиг.2 - график нагрева заготовок. Поставленна цель достигаетс тем что направление движени циркулирующего теплоносител измен ют на обратное через каждые-ЗО-60 минут при посто нной тепловой мощноститеплоносител . По предлагаемому способу после нагрева данной садки 1 (фиг.1) через 2Омин торец 2 отстает по нагреву от торца 3 на 8-10 С. После изменени посредством вентил тора 4 и калорифера 5 направлени движени циркулирующего теплоносител на обратное торец 2 начинает нагреватьтс быстрее торца 3 и через 30 мин опер&жает по нагреву торец Б на 8-10° С и т.д. как видно на фиг.2. С течением времени температура выравниваетс , обеспечива равномерный нагрев по всему сечению .стопы, чем ликвидируютс недопустимые по ОСТу разбросы физико-механических свойств термообрабатываемого металла.This invention relates to the field of metallurgy of non-ferrous metals and can be used for; artificial aging of the annealing of the homogenization of quenching of large-sized products: plates of panels of profiles of pipes forgings and sheets of aluminum alloys. A known method of heating products with transverse circulation of a heat carrier in the working space of the furnace. The disadvantage of this method is: the instability of the physicomechanical. properties of large-sized products after heat treatment in these furnaces: uneven microstructure, large anisotropy of mechanical properties over the cross section of the product, due to uneven heating The aim of the invention is to improve the physicomechanical properties of heat treated products. 1 shows a furnace for heating the blanks: FIG. 2 is a graph of the heating of the blanks. This goal is achieved by the fact that the direction of movement of the circulating coolant is reversed every 30 to 30 minutes at a constant heat power carrier. According to the proposed method, after heating this charge 1 (Fig. 1), after 2 Ohms, the end 2 falls behind by the end 3 by 8-10 C. After the fan 4 and the heater 5 are changed, the direction of movement of the circulating coolant to the opposite end 2 begins to heat faster than the end 3 and 30 minutes later the operas & heat on end B by 8-10 ° C, etc. as seen in FIG. Over time, the temperature levels out, providing uniform heating throughout the section of the foot, which eliminates the OST tolerance of the physical-mechanical properties of the heat-treated metal.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772549095A SU709700A1 (en) | 1977-12-08 | 1977-12-08 | Method of thermal treatment of large-size aluminum alloy articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772549095A SU709700A1 (en) | 1977-12-08 | 1977-12-08 | Method of thermal treatment of large-size aluminum alloy articles |
Publications (1)
Publication Number | Publication Date |
---|---|
SU709700A1 true SU709700A1 (en) | 1980-01-15 |
Family
ID=20735471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772549095A SU709700A1 (en) | 1977-12-08 | 1977-12-08 | Method of thermal treatment of large-size aluminum alloy articles |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU709700A1 (en) |
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1977
- 1977-12-08 SU SU772549095A patent/SU709700A1/en active
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