FIELD: process engineering.
SUBSTANCE: invention relates to foundry. Proposed method allows producing lengthy thin-wall pipes from various steels with diametre of 0.06-0.35 m, wall thickness of 0.006-0.020 m and length of up to 6.0 m. Proposed method comprises applying antistick paint with 0.0007 to 0.0015 m-layer thickness, onto steel mold inner surface heated with increasing temperature over its length at 200°C nearing casing end to 300°C at not casting end. Metal is poured at mass flow rate of 20 to 40 kg/s and temperature exceeding its Tpeak by 120 to 210 °C. Mould is rotated at the rate corresponding to gravity factor of 120-220 on ingot inner surface.
EFFECT: dense structure one pipe length and cross section with no defects and high physical and mechanical properties of metal.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CENTRIFUGAL STEEL THICK-WALL BILLET CASTING | 2009 |
|
RU2391181C1 |
| METHOD OF PRODUCING CENTRIFUGALLY CAST THIN-WALLED PIPES-BILLETS WITH SIZE OF 288X12X5,500 mm FROM STEEL WITH BORON CONTENT FROM 2.01 TO 3.5% FOR MAKING HEXAGONAL PIPES-BILLETS WITH "TURNKEY" SIZE 257+1.5/-1.0X6±1.0X4300+80/-20 mm AND RACKS FOR COMPACTED STORAGE IN COOLING POOLS OF NUCLEAR POWER PLANTS AND TRANSPORTATION OF SPENT NUCLEAR FUEL | 2024 |
|
RU2831245C1 |
| METHOD FOR PRODUCTION OF CENTRIFUGALLY CAST THIN-WALL PIPES-BILLETS WITH SIZE OF 288X12X5,500 mm FROM STEEL WITH BORON CONTENT FROM 1.3 TO 1.8% FOR PRODUCTION OF HEXAGONAL PIPES-BILLETS WITH "TURNKEY" SIZE 257+1.5/-1.0X6±1.0X4300+80/-20 mm AND RACKS FOR COMPACTED STORAGE IN COOLING POOLS OF NUCLEAR POWER PLANTS AND TRANSPORTATION OF SPENT NUCLEAR FUEL | 2024 |
|
RU2831234C1 |
| METHOD OF CENTRIFUGAL CASTING OF THIN-WALL TUBES OF HEAT-RESISTANT ALLOYS | 2015 |
|
RU2606824C2 |
| METHOD OF CENTRIFUGAL CASTING OF THIN-WALLED ELONGATED BILLETS | 0 |
|
SU1316747A1 |
| METHOD FOR PRODUCTION OF SEAMLESS PIPES OF LARGE DIAMETER FROM STRUCTURAL STEELS | 2019 |
|
RU2714355C1 |
| METHOD FOR UNIDIRECTIONAL AND ACCELERATED HARDENING OF LARGE-SIZE THICK-WALLED CENTRIFUGAL CAST STEEL WORKPIECES | 2019 |
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| METHOD OF CENTRIFUGAL CAST OF MASSIVE BIMETALLIC ROLLERS WITH SOLID CROSS-SECTION | 2007 |
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RU2806681C1 |
