6 research outputs found
Method for Supplying Glass-Lubricating Material to Outer Surface of Workpiece Before Pressing
ΠΠ·ΠΎΠ±ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΡΠ½ΠΎΡΠΈΡΡΡ ΠΊ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ² Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΈ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΎ ΠΏΡΠΈ Π½Π°Π½Π΅ΡΠ΅Π½ΠΈΠΈ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π½Π° Π½Π°ΡΡΠΆΠ½ΡΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΡ Π·Π°Π³ΠΎΡΠΎΠ²ΠΊΠΈ ΠΏΠ΅ΡΠ΅Π΄ Π³ΠΎΡΡΡΠΈΠΌ ΠΏΡΠ΅ΡΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΡΡΡΠΊΠΎΠ² ΠΈΠ»ΠΈ ΡΡΡΠ±. Π‘ΠΏΠΎΡΠΎΠ± Π²ΠΊΠ»ΡΡΠ°Π΅Ρ ΠΏΠΎΠ΄Π°ΡΡ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π½Π° Π½Π°ΠΊΠ»ΠΎΠ½Π½ΡΠΉ ΡΡΠΎΠ» ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΊΠΈ, Π½Π°Π³ΡΠ΅Π² Π·Π°Π³ΠΎΡΠΎΠ²ΠΊΠΈ 1 Π΄ΠΎ ΡΡΠ΅Π±ΡΠ΅ΠΌΠΎΠΉ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ, Π²ΡΠ³ΡΡΠ·ΠΊΡ Π·Π°Π³ΠΎΡΠΎΠ²ΠΊΠΈ ΠΈ ΠΏΡΠΎΠΊΠ°ΡΡΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎ Π½Π°ΠΊΠ»ΠΎΠ½Π½ΠΎΠΌΡ ΡΡΠΎΠ»Ρ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΊΠΈ 2 ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ ΡΠΎΠ»ΠΊΠ°ΡΠ΅Π»Ρ ΠΈ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΡΡ Π·Π°Π³ΡΡΠ·ΠΊΡ ΠΎΠ±ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ Π·Π°Π³ΠΎΡΠΎΠ²ΠΊΠΈ Π² ΠΊΠΎΠ½ΡΠ΅ΠΉΠ½Π΅Ρ ΠΏΡΠ΅ΡΡΠ°. Π‘ΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΏΠΎΠ΄Π°ΡΡ Π½Π° ΡΡΠΎΠ» ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΊΠΈ 2 ΡΠ½ΠΈΠ·Ρ ΡΠ΅ΡΠ΅Π· ΡΠ΅ΡΠΊΡ ΠΈΠ»ΠΈ ΠΏΠ΅ΡΡΠΎΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΉ Π»ΠΈΡΡ 4 ΠΏΡΡΠ΅ΠΌ ΠΏΠΎΠ΄ΡΠ΅ΠΌΠ° ΠΏΠ»Π°ΡΡΠΎΡΠΌΡ 6 ΡΠΎ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΡΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠΌ 5, ΡΠ°ΡΠΏΠΎΠ»ΠΎΠΆΠ΅Π½Π½ΠΎΠΉ Π² Π±ΡΠ½ΠΊΠ΅ΡΠ΅ 7. ΠΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΡΡ ΡΠΎΠ»ΡΠΈΠ½Ρ ΡΠ»ΠΎΡ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° 5 ΠΏΡΡΠ΅ΠΌ ΠΊΠΎΠ½ΡΡΠΎΠ»Ρ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΠΏΠΎΠ΄ΡΠ΅ΠΌΠ° ΠΏΠ»Π°ΡΡΠΎΡΠΌΡ 6 ΡΠΎ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΡΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠΌ 5. Π Π°Π²Π½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΡ ΠΏΠΎΠ΄Π°Π²Π°Π΅ΠΌΠΎΠ³ΠΎ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° 5 ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡ Π²ΡΡΠ°Π²Π½ΠΈΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° 5 Π½Π° ΠΏΠ»Π°ΡΡΠΎΡΠΌΠ΅ 6 Π°Π²ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈ Π·Π° ΡΡΠ΅Ρ Π²ΠΈΠ±ΡΠ°ΡΠΈΠΈ, Π²ΡΡΡΡΡ
ΠΈΠ²Π°Π½ΠΈΡ ΠΈΠ»ΠΈ ΠΏΠ΅ΡΠ΅ΠΌΠ΅ΡΠΈΠ²Π°Π½ΠΈΡ. ΠΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅ΡΡΡ ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΠΉ ΡΠ»ΠΎΠΉ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π½Π° Π½Π°ΡΡΠΆΠ½ΠΎΠΉ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ Π·Π°Π³ΠΎΡΠΎΠ²ΠΊΠΈ Π·Π° ΡΡΠ΅Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠΎΠ»ΡΠΈΠ½Ρ ΠΈ ΡΠ°Π²Π½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠΈ Π½Π°Π½ΠΎΡΠΈΠΌΠΎΠ³ΠΎ ΡΠ»ΠΎΡ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΈΡΠΊΠ»ΡΡΠ°Π΅ΡΡΡ ΠΏΠΎΡΠ΅ΡΡ ΡΡΠ΅ΠΊΠ»ΠΎΡΠΌΠ°Π·ΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°, ΡΡΠΎ ΡΠ½ΠΈΠΆΠ°Π΅Ρ Π΅Π³ΠΎ ΡΠ°ΡΡ
ΠΎΠ΄. 3 ΠΈΠ»., 1 ΡΠ°Π±Π».FIELD: metalworking. SUBSTANCE: invention relates to the field of metalworking by pressure; it can be used when applying glass-lubricating material to the outer surface of a workpiece before hot pressing rods or pipes. The method includes supplying glass-lubricating material to an inclined glass-lubricating table, heating workpiece 1 to the required temperature, unloading the workpiece and rolling along inclined glass-lubricating table 2 using a pusher, and then, loading the processed workpiece into a press container. Glass-lubricating material is supplied to glass-lubricating table 2 from below through a grid or perforated sheet 4 by lifting platform 6 with glass-lubricating material 5 located in hopper 7. The thickness of a layer of glass-lubricating material 5 is controlled by controlling the amount of lifting of platform 6 with glass-lubricating material 5. The uniformity of supplied glass-lubricating material 5 is provided by leveling glass-lubricating material 5 on platform 6 automatically due to vibration, shaking or mixing. EFFECT: high-quality layer of glass-lubricating material is provided on the outer surface of the workpiece due to the possibility of regulating the thickness and uniformity of the applied layer of glass-lubricating material, and also the loss of glass-lubricating material is eliminated, which reduces its consumption. 1 cl, 3 dwg, 1 tbl
Method for Manufacturing Cold-Worked Weldless Pipes from Titanium Alloys
ΠΠ·ΠΎΠ±ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΡΠ½ΠΎΡΠΈΡΡΡ ΠΊ ΠΌΠ΅ΡΠ°Π»Π»ΡΡΠ³ΠΈΠΈ, Π° ΠΈΠΌΠ΅Π½Π½ΠΎ ΠΊ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ Π±Π΅ΡΡΠΎΠ²Π½ΡΡ
Ρ
ΠΎΠ»ΠΎΠ΄Π½ΠΎΠ΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΡΡΠ± ΠΈΠ· ΡΠΈΡΠ°Π½ΠΎΠ²ΡΡ
ΡΠΏΠ»Π°Π²ΠΎΠ², ΠΈ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΎ Π΄Π»Ρ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ ΠΈΠ·Π΄Π΅Π»ΠΈΠΉ ΠΎΡΠ²Π΅ΡΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π°Π·Π½Π°ΡΠ΅Π½ΠΈΡ. Π‘ΠΏΠΎΡΠΎΠ± ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ Ρ
ΠΎΠ»ΠΎΠ΄Π½ΠΎΠ΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
Π±Π΅ΡΡΠΎΠ²Π½ΡΡ
ΡΡΡΠ± ΠΈΠ· ΡΠΈΡΠ°Π½ΠΎΠ²ΡΡ
ΡΠΏΠ»Π°Π²ΠΎΠ² Π²ΠΊΠ»ΡΡΠ°Π΅Ρ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΡΡ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΡ Π³ΠΎΡΡΡΠ΅Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΠΈΠ»ΠΈΠ½Π΄ΡΠΈΡΠ΅ΡΠΊΠΈΡ
Π·Π°Π³ΠΎΡΠΎΠ²ΠΎΠΊ, ΠΏΡΠ΅ΡΡΠΎΠ²Π°Π½ΠΈΠ΅, ΠΏΡΠ°Π²ΠΊΡ ΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΡΡ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΡ ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π³ΠΎΡΡΡΠ΅ΠΏΡΠ΅ΡΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΡΡΠ±, ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΡΡ ΠΌΠ½ΠΎΠ³ΠΎΠΏΡΠΎΡ
ΠΎΠ΄Π½ΡΡ Ρ
ΠΎΠ»ΠΎΠ΄Π½ΡΡ ΠΏΡΠΎΠΊΠ°ΡΠΊΡ ΠΏΡΠΈ ΠΎΡΡΡΠ΅ΡΡΠ²Π»Π΅Π½ΠΈΠΈ ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΡ
ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΠ±ΡΠ°Π±ΠΎΡΠΎΠΊ Π² Π²Π°ΠΊΡΡΠΌΠ΅ Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΠΏΠ»Π°Π²Π° ΠΈ ΠΊΠΎΠ½Π΅ΡΠ½ΡΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΡΡ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΡ ΡΡΡΠ± Π³ΠΎΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ°Π·ΠΌΠ΅ΡΠ° Π² Π²Π°ΠΊΡΡΠΌΠ΅. Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΡΠΈΡΠ°Π½ΠΎΠ²ΡΡ
ΡΠΏΠ»Π°Π²ΠΎΠ² Π΄Π»Ρ ΡΡΡΠ± ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡ ΡΠΏΠ»Π°Π² ΠΠ’-1Π ΠΈΠ»ΠΈ ΠΠ’-7Π, ΠΏΠ΅ΡΠ΅Π΄ Π½Π°Π³ΡΠ΅Π²ΠΎΠΌ ΠΏΠΎΠ΄ ΠΏΡΠ΅ΡΡΠΎΠ²Π°Π½ΠΈΠ΅ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΡ Π·Π°Π³ΠΎΡΠΎΠ²ΠΎΠΊ Π½Π°Π½ΠΎΡΡΡ Π·Π°ΡΠΈΡΠ½ΠΎΠ΅ ΠΏΠΎΠΊΡΡΡΠΈΠ΅, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡΠ΅Π΅ ΡΠΎΠ±ΠΎΠΉ ΡΠ»ΠΈΠΊΠ΅ΡΠ½ΡΡ ΠΎΠ±ΠΌΠ°Π·ΠΊΡ, ΡΠΎΡΡΠΎΡΡΡΡ ΠΈΠ· ΡΠΌΠ΅ΡΠΈ ΠΏΠΎΡΠΎΡΠΊΠ° ΡΠΌΠ°Π»ΠΈ ΠΠΠ’-24, ΠΌΠΎΠ»ΠΎΡΠΎΠΉ Π±Π΅Π½ΡΠΎΠ½ΠΈΡΠΎΠ²ΠΎΠΉ Π³Π»ΠΈΠ½Ρ ΠΈ ΠΆΠΈΠ΄ΠΊΠΎΠ³ΠΎ ΡΡΠ΅ΠΊΠ»Π°. ΠΠ°Π»Π΅Π΅ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΡΡ ΠΏΡΠ΅ΡΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ Π’Π, ΠΊΠΎΡΠΎΡΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡΡ ΠΏΠΎ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ: Π’Π = Π’ΠΠ β kβ
Ξ΅β
Ο
ΠΠ , Π³Π΄Π΅ Π’ΠΠ β ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΠΏΠΎΠ»ΠΈΠΌΠΎΡΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ, Β°Π‘; k β ΡΠΌΠΏΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ, ΡΡΠΈΡΡΠ²Π°ΡΡΠΈΠΉ Π²Π»ΠΈΡΠ½ΠΈΠ΅ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΠ°Π·ΠΎΠ³ΡΠ΅Π²Π°, Β°Π‘Β·Ρ/ΠΌΠΌ; Π΄Π»Ρ ΡΠΏΠ»Π°Π²Π° ΠΠ’-1Π ΡΠΌΠΏΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ k ΠΎΡ 0,035 Π΄ΠΎ 0,12, Π° Π΄Π»Ρ ΡΠΏΠ»Π°Π²Π° ΠΠ’-7Π ΡΠΌΠΏΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ k ΠΎΡ 0,02 Π΄ΠΎ ΠΌΠ΅Π½Π΅Π΅ 0,15, Ξ΅ β Π»ΠΎΠ³Π°ΡΠΈΡΠΌΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΡΠ΅ΠΏΠ΅Π½Ρ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈ; Ο
ΠΠ β ΡΠΊΠΎΡΠΎΡΡΡ ΠΏΠ΅ΡΠ΅ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π΅ΡΠΎΡΠΌΠΈΡΡΡΡΠ΅Π³ΠΎ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΠ° ΠΏΡΠΈ ΠΏΡΠ΅ΡΡΠΎΠ²Π°Π½ΠΈΠΈ, ΠΌΠΌ/Ρ. Π₯ΠΎΠ»ΠΎΠ΄Π½ΡΡ ΠΏΡΠΎΠΊΠ°ΡΠΊΡ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΡΡ ΡΠΎ ΡΡΠ΅ΠΏΠ΅Π½ΡΡ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΠΎΡ 40 Π΄ΠΎ 44% Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΆΠΈΠ΄ΠΊΠΈΡ
ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΌΠ°Π·ΠΎΠΊ, Π° ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΠ΅ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΏΡΠΎΠ²ΠΎΠ΄ΡΡ Π² Π²Π°ΠΊΡΡΠΌΠ΅ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ 670-690Β°Π‘ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 120 ΠΌΠΈΠ½ Π΄Π»Ρ ΡΠΏΠ»Π°Π²Π° ΠΠ’-1Π ΠΈΠ»ΠΈ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ 730-790Β°Π‘ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 120 ΠΌΠΈΠ½ Π΄Π»Ρ ΠΠ’-7Π. ΠΠΎΠ½Π΅ΡΠ½ΡΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΡΡ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΡ ΡΡΡΠ± Π³ΠΎΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ°Π·ΠΌΠ΅ΡΠ° ΠΏΡΠΎΠ²ΠΎΠ΄ΡΡ Π² Π²Π°ΠΊΡΡΠΌΠ΅ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ 670-690Β°Π‘ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 120 ΠΌΠΈΠ½ Π΄Π»Ρ ΡΠΏΠ»Π°Π²Π° ΠΠ’-1Π ΠΈΠ»ΠΈ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ 730-790Β°Π‘ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 120 ΠΌΠΈΠ½ Π΄Π»Ρ ΠΠ’-7Π. ΠΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅ΡΡΡ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΠ΅ ΡΡΠ΅Π±ΡΠ΅ΠΌΡΡ
ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ² ΡΡΡΠ±, ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° Π²ΡΡ
ΠΎΠ΄Π° Π³ΠΎΠ΄Π½ΠΎΠ³ΠΎ Π·Π° ΡΡΠ΅Ρ ΠΎΡΡΡΡΡΡΠ²ΠΈΡ Π΄Π΅ΡΠ΅ΠΊΡΠΎΠ² Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ Ρ
ΠΎΠ»ΠΎΠ΄Π½ΠΎΠ΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΡΡΠ±. 1 Π·.ΠΏ. Ρ-Π»Ρ, 5 ΠΈΠ».FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy, namely, to the manufacture of weldless cold-worked pipes from titanium alloys, and can be used for manufacturing heavy-duty articles. Method for manufacturing cold-worked weldless pipes from titanium alloys includes machining hot-worked cylindrical workpieces, pressing, levelling, and machining the resulting hot-pressed pipes, followed by multi-pass cold rolling while performing intermediate heat treatments in vacuum, depending on the alloy, and finishing heat treatment of pipes of the finished size in vacuum. The PT-1M or PT-7M alloy is used as titanium alloys for the pipes; prior to heating for pressing, a protective coating is applied to the surface of the workpieces, constituting a slip coat consisting of a mixture of powdered EVT-24 enamel, ground bentonite clay, and liquid glass. Pressing is then performed at a temperature TH determined by the dependence: TH = TPP β k·Ρ·Ο
PR, wherein TPP is the polymorphic transition temperature, Β°C; k is an empirical coefficient accounting for the influence of deformation heat-up, Β°CΒ·s/mm; for the PT-1M alloy, the empirical coefficient k is from 0.035 to 0.12, and for the PT-7M alloy, the empirical coefficient k is from 0.02 to less than 0.15, Ξ΅ is the logarithmic degree of deformation; Ο
PR is the rate of movement of the deforming tool during pressing, mm/s. Cold rolling is performed with a 40 to 44% degree of deformation, using liquid process lubricants; and intermediate heat treatments are performed in vacuum at a temperature of 670 to 690Β°C for 120 minutes for the PT-1M alloy or at 730 to 790Β°C for 120 minutes for the PT-7M alloy. The finishing heat treatment of pipes of the finished size is performed in vacuum at a temperature of 670 to 690Β°C for 120 minutes for the PT-1M alloy or at 730 to 790Β°C for 120 minutes for the PT-7M alloy. EFFECT: required mechanical properties of the pipes are obtained, and yield coefficient is increased due to the absence of defects on the surface of cold-worked pipes. 2 cl, 5 dwg