Preparation method of high-temperature alloy bar billet for thermal power generating unit valve
The invention discloses a preparation method of a high-temperature alloy bar billet for a thermal power generating unit valve, which is characterized by comprising the following steps: S1, selecting a bar billet of which the specification is phi 90mm, the carbide rating is less than or equal to grad...
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Format | Patent |
Language | Chinese English |
Published |
14.11.2023
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Abstract | The invention discloses a preparation method of a high-temperature alloy bar billet for a thermal power generating unit valve, which is characterized by comprising the following steps: S1, selecting a bar billet of which the specification is phi 90mm, the carbide rating is less than or equal to grade 2 and the grain size is more than or equal to grade 3, and carrying out double-vacuum smelting of vacuum induction smelting and vacuum consumable remelting to obtain a cast ingot with the diameter of 490mm; s2, carrying out high-temperature homogenization heat treatment on the cast ingot in a natural gas furnace; s3, the cast ingot subjected to homogenizing heat treatment is subjected to three-heating-number blooming forging in an 80MN fast forging machine, blooming is continuous remelting, and the deformation amount of each heating number ranges from 30% to 50%; s4, the cogged blank is subjected to two-heating-number continuous remelting low-temperature drawing in an 80MN fast forging machine, and the deformatio |
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AbstractList | The invention discloses a preparation method of a high-temperature alloy bar billet for a thermal power generating unit valve, which is characterized by comprising the following steps: S1, selecting a bar billet of which the specification is phi 90mm, the carbide rating is less than or equal to grade 2 and the grain size is more than or equal to grade 3, and carrying out double-vacuum smelting of vacuum induction smelting and vacuum consumable remelting to obtain a cast ingot with the diameter of 490mm; s2, carrying out high-temperature homogenization heat treatment on the cast ingot in a natural gas furnace; s3, the cast ingot subjected to homogenizing heat treatment is subjected to three-heating-number blooming forging in an 80MN fast forging machine, blooming is continuous remelting, and the deformation amount of each heating number ranges from 30% to 50%; s4, the cogged blank is subjected to two-heating-number continuous remelting low-temperature drawing in an 80MN fast forging machine, and the deformatio |
Author | CAO GUOXIN DANG YINGYING YAN JINGBO ZHANG LIXIANG HE YONGSHENG FU BAOQUAN YUAN YONG WANG DONGWEI SUN MINGYU SHI XINBO |
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DocumentTitleAlternate | 一种火电机组阀门用高温合金棒坯的制备方法 |
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RelatedCompanies | XI'AN JUNENG HIGH TEMPERATURE ALLOY MATERIAL TECHNOLOGY CO., LTD XI'AN THERMAL POWER RESEARCH INSTITUTE CO., LTD HUANENG POWER INTERNATIONAL INC |
RelatedCompanies_xml | – name: HUANENG POWER INTERNATIONAL INC – name: XI'AN JUNENG HIGH TEMPERATURE ALLOY MATERIAL TECHNOLOGY CO., LTD – name: XI'AN THERMAL POWER RESEARCH INSTITUTE CO., LTD |
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Snippet | The invention discloses a preparation method of a high-temperature alloy bar billet for a thermal power generating unit valve, which is characterized by... |
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SubjectTerms | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
Title | Preparation method of high-temperature alloy bar billet for thermal power generating unit valve |
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