发明名称 |
METHOD OF MOULDING TWO-LAYER POWDER MULTIFUNCTIONAL PRODUCTS WITH VERTICAL ARRANGEMENT OF LAYERS |
摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to powder metallurgy. Batch mixes of layers are prepared separately to fill outer layer blend in cavity between female die and core. Sand frame is placed atop female die. Note here that sand frame surface and core top end are located in one plane. Outer layer is compacted by tubular male die by amount ?h = ?h+ ?t', where ?his amount of outer layer compaction (height of sand frame); ?h'is female die down travel onto lower outer male die. Sand frame and tubular upper female die are removed to extract the core. Inner layer blends are filled in cavity formed by extracted core to compact outer layer and outer and inner layer in floating female die are additionally compacted. Produced billet is heated and additionally compacted.EFFECT: differentiated compaction, billet equal height, identical relative hardness of inner and outer layers.3 dwg |
申请公布号 |
RU2475335(C1) |
申请公布日期 |
2013.02.20 |
申请号 |
RU20110147063 |
申请日期 |
2011.11.18 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE BJUDZHETNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "JUZHNO-ROSSIJSKIJ GOSUDARSTVENNYJ TEKHNICHESKIJ UNIVERSITET (NOVOCHERKASSKIJ POLITEKHNICHESKIJ INSTITUT)" |
发明人 |
DOROFEEV JURIJ GRIGOR'EVICH;BESSARABOV EVGENIJ NIKOLAEVICH |
分类号 |
B22F7/02;B22F3/02 |
主分类号 |
B22F7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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