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1. 发明专利

SU757193A1 MAGNETIC SEPARATOR 未知
公开(公告)号：SU757193A1
公开(公告)日：1980-08-23
申请号：SU2314345
申请日：1976-01-12
申请人： VULFOVICH LEV B , LITVINTSEV ALEKSANDR , KONONOV IVAN A , KAZMIRUK VLADIMIR
发明人： VULFOVICH LEV B , LITVINTSEV ALEKSANDR , KONONOV IVAN A , KAZMIRUK VLADIMIR
IPC分类号： B03C1/08

2. 发明专利

SU697257A1 METHOD OF TREATING ALUMINIUM POWDER 未知
公开(公告)号：SU697257A1
公开(公告)日：1979-11-15
申请号：SU2514023
申请日：1977-07-25
申请人： ARBUZOVA LARISA A , TYULPAKOVA RAISA V , SHMAKOV YURIJ V , DANILKIN VIKTOR A , LITVINTSEV ALEKSANDR
发明人： ARBUZOVA LARISA A , TYULPAKOVA RAISA V , SHMAKOV YURIJ V , DANILKIN VIKTOR A , LITVINTSEV ALEKSANDR
IPC分类号： B22F1/00

3. 发明专利

RU2200647C1 METHOD FOR MAKING POROUS SEMIFINISHED PRODUCTS OF ALUMINIUM ALLOY POWDERS 未知
公开(公告)号：RU2200647C1
公开(公告)日：2003-03-20
申请号：RU2001119590
申请日：2001-07-17
申请人： LITVINTSEV ALEKSANDR IVANOVICH , LITVINTSEV SERGEJ ALEKSANDROVI , LITVINTSEV BORIS ALEKSANDROVIC
发明人： LITVINTSEV A I , LITVINTSEV S A , LITVINTSEV B A
IPC分类号： B22F3/11 , B22F3/18 , C22C1/08 , C22C32/00
摘要： FIELD: powder metallurgy, possibly manufacture of porous materials having good heat and sound insulation properties, energy absorption property and light weight, inflammability and ecological safety. SUBSTANCE: method comprises steps of mixing powders of aluminium alloys with blowing agents having decomposition temperature more than melting temperature of aluminium alloy powder; pouring prepared mixture to vessel; heating vessel with powder mixture; then performing hot compaction, cooling and further high temperature treatment; secondary cooling; mixing aluminum alloy powder with blowing agents at adding powders of aluminium oxide and hydroxide in quantity 1 - 10 %; or mixing blowing agent and aluminium oxides and broken particles (with fraction size 0.5 -0.45 mm) of secondary selected aluminium alloy in attrition device for preparing mechanically alloyed powder alloy; heating mixture in inert atmosphere (argon, nitrogen, dew point 40 C); pouring powdered mixture into vertically arranged vessel providing simultaneous vibration compaction and keeping temperature of powder mixture; feeding it to rectangular roll grooved pass of powder rolling mill in which depending upon change of stress deformation state continuous hot compaction or pressing is performed in closed grooved pass of horizontally arranged rolls at temperature 430-500 C at salifying mathematical relation: H = hxgammaxd, where H is roll gap, mm; gamma- is coefficient of compaction of powder or metallic particles; alpha- is experimental coefficient, when it is in range alpha>1,0-mixture is undercompacted (density 0.86-0.95%), when it is in range 1,0>=alpha>=2,0, state of hot compacted hard-to-form powders and particles corresponds to density 0.97-0.99%; when it is in range 1,5>=alpha>=4,5, state corresponds to hot pressed continuous strip with width 150-2000 mm; cutting strip by blanks; placing them in temperature controlled multiple-use holders whose lateral surfaces are made of heat insulation material with blackness degree significantly different from that of melt aluminium; heating holder with blank until liquid temperature of powdered alloy (until melting alloy); according to visually observed stripe of liquid aluminium over edge of holder determining height of frothing and interrupting free frothing at predetermined level. EFFECT: enhanced efficiency, loss free production process, lowered cost price of semifinished products. 13 cl, 1 dwg, 4 ex

4. 发明专利

SU1362970A1 DEVICE FOR MEASURING CONTACT PRESSURES 未知
公开(公告)号：SU1362970A1
公开(公告)日：1987-12-30
申请号：SU4018581
申请日：1986-02-04
申请人： BERKOVICH IZIDOR , GUZMAN MIKHAIL , LITVINTSEV ALEKSANDR
发明人： BERKOVICH IZIDOR I , GUZMAN MIKHAIL I , LITVINTSEV ALEKSANDR I
IPC分类号： G01L7/00

5. 发明专利

SU1052342A1 INSTALLATION FOR PRODUCING METAL PELLETS 未知
公开(公告)号：SU1052342A1
公开(公告)日：1983-11-07
申请号：SU3462177
申请日：1982-07-05
申请人： LITVINTSEV ALEKSANDR , ORLOV VLADIMIR K , RODIONOV VLADIMIR F , BONDAREV BORIS , MITIN VYACHESLAV P , KAZAROVA OLGA N
发明人： LITVINTSEV ALEKSANDR I , ORLOV VLADIMIR K , RODIONOV VLADIMIR F , BONDAREV BORIS I , MITIN VYACHESLAV P , KAZAROVA OLGA N
IPC分类号： B22F9/08

6. 发明专利

SU813118A1 DEVICE FOR DETERMINATION OF ACTUAL CONTACT AREA 未知
公开(公告)号：SU813118A1
公开(公告)日：1981-03-15
申请号：SU2712305
申请日：1979-01-08
申请人： BERKOVICH IZIDOR , DEMKIN NIKOLAJ B , ZVEREVA LYUDMILA , LITVINTSEV ALEKSANDR , MAZE DMITRIJ M
发明人： BERKOVICH IZIDOR , DEMKIN NIKOLAJ B , ZVEREVA LYUDMILA , LITVINTSEV ALEKSANDR , MAZE DMITRIJ M
IPC分类号： G01B5/00 , G01B5/26

7. 发明专利

RU2457068C1 ЛИНИЯ НЕПРЕРЫВНОЙ ПРЯМОЙ ПРОКАТКИ ПОРОШКОВЫХ МАТЕРИАЛОВ 未知
公开(公告)号：RU2457068C1
公开(公告)日：2012-07-27
申请号：RU2011106160
申请日：2011-02-18
申请人： LITVINTSEV ALEKSANDR IVANOVICH
发明人： LITVINTSEV ALEKSANDR IVANOVICH , LISICHKIN VLADIMIR ALEKSANDROVICH , LITVINTSEV BORIS ALEKSANDROVICH , LITVINTSEV SERGEJ ALEKSANDROVICH
IPC分类号： B01J2/22 , B22F3/18
摘要： Изобретениеотноситсяк порошковойметаллургии, вчастностик устройствамдлянепрерывнойпрямойпрокаткипорошковыхматериалов. Линиянепрерывнойпрямойпрокаткипорошковыхматериаловсодержитвертикальныйпрямоугольныйжелобс системойвиброуплотнения, обеспечивающийдозированнуюподачупорошковогоматериалав прокатныйстан, ипрокатныйстан, содержащийдвагоризонтальнорасположенныхвалка. Левыйвалокпрокатногостанаснабженребордамии установленнанеподвижнойстанине. Правыйгладкийвалоквыполненс ширинойбочки, равнойзазорумеждуребордамилевоговалка, иразмещеннаскользящейопорес возможностьюперемещенияв горизонтальнойплоскости. Ввертикальномжелобеустановленыдвефальшстенкис возможностьюизмененияшириныжелобадляобеспеченияеёравенствас расстояниеммеждувалкамипрокатногостанаподугезахватавалков. Линияобеспечиваетповышениепроизводительностии эффективностипроцессапрокатки. 3 з.п. ф-лы, 2 ил.

8. 发明专利

SU593936A1 STRUCTURAL SHEET MATERIAL 未知
公开(公告)号：SU593936A1
公开(公告)日：1978-02-25
申请号：SU1999135
申请日：1974-02-25
申请人： KURAKIN ARKADIJ K , IVANOV SERGEJ N , LITVINTSEV ALEKSANDR , TIMOKHOVA KIRA A
发明人： KURAKIN ARKADIJ K , IVANOV SERGEJ N , LITVINTSEV ALEKSANDR , TIMOKHOVA KIRA A
IPC分类号： B32B15/00

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