ИЗМЕНЕНИЕ МЕХАНИЧЕСКИХ СВОЙСТВ ГОРЯЧЕКАТАНЫХ ТРУБ ИЗ СТАЛИ 12ХЗГНМФБА ПРИ РОТАЦИОННОЙ ВЫТЯЖКЕ

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<ul><li><p> 3 </p><p> 621.983:539.974 .. , - . , ., (4872) 35-14-82, mpf-tula@rambler.ru (, , ), .. , - . , ., 4872) 35-14-82, mpf-tula@rambler.ru (, , ), .. , - . , ., (4872) 35-14-82, mpf-tula@rambler.ru</p><p> - , </p><p> (, , ) </p><p> 12 </p><p> -</p><p> 12 - . </p><p> : , , -, , , . </p><p> -</p><p> ( , ), . - [1, 2]. , - - . </p></li><li><p> . . 2010. . 2. . 2 </p><p> 4 </p><p>, . () [3, 4] - 2,0 , , 5 . </p><p> - - , -, . </p><p> , - 10, 12 [1, 2]. B 1200 . </p><p> 1200 12. </p><p> - - 2,0 , 12. </p><p> , , , - , . </p><p> , - - , 2 : - T 100)/1( 0 = tt %. 0t t . </p></li><li><p> 5 </p><p> ( ) -: 2,0 , 5 - . </p><p> - , -: 1X 6 ; 2X 4 , 24 - (. 1). </p><p> (. 1) . 2 - T , - 12, . (. 1) - . </p><p> 1 </p><p>1x 2x 1x 2x 1 +1,5 -1 13 0 -1 2 +1,5 0 14 0 +0,5 3 +1,5 0,5 15 0 +1 4 +1,5 +1 16 -0,5 -1 5 +1 -1 17 -0,5 0 6 +1 0 18 -0,5 +0,5 7 +1 0,5 19 -0,5 +1 8 +1 1 20 -1 -1 9 +0,5 -1 21 -1 0 10 +0,5 0 22 -1 +0,5 11 +0,5 0,5 23 -1 +1 12 +0,5 +1 24 0 0 -</p><p> , - . </p></li><li><p> . . 2010. . 2. . 2 </p><p> 6 </p><p> - : </p><p>;2/)( minmax0 iii XXX += ;2/)( minmax iii XXX = ;/)( 0 iiii XXXx += ,0iiii XXxX += </p><p> iX , 0iX , iX , - ; ix - . </p><p> -, t - - F - , - 0,05 [5, 6]. </p><p> , - ( ) 12. </p><p> 2 </p><p> 1X 2X </p><p> T , </p><p>0 C </p><p> , % +1,50 700 - +1 650 80 +0,5 600 60 +0 550 40 -0,5 500 - -1 450 0 </p><p> , , </p><p> 130 116450 T =910 ( 1 ) : 450, 500, 550, 600, 650, 700 ( 3 ). </p><p> - -2. 3- - . </p><p> , - 120 D =220 </p></li><li><p> 7 </p><p>, r =3 , b=3 , 151 = p ; </p><p>3032 == pp ; 30= (. . 1). -</p><p> ( ) 56...62 HRC . </p><p> . 1. </p><p> -</p><p>, [7]. %40= , %60= %80= . </p><p> - - : 125=n -1f</p><p>, =1,0 /. </p><p>T = 400 . </p><p> - 14510 ( 14 ) 10006-80. . </p><p> 2,0 , - , 5 -</p></li><li><p> . . 2010. . 2. . 2 </p><p> 8 </p><p> 1497-84. </p><p> - RIEHLE OLSEN - . </p><p> T - 12. </p><p> -: </p><p> () ++= 22</p><p>212121 52,5159,19323,8223,13043,5693,1423 xxxxxx </p><p>++++ 2221</p><p>32</p><p>31</p><p>2212</p><p>21 28,7189,6953,22793,4272,17 xxxxxxxx </p><p>231</p><p>321 66,3038,99 xxxx +</p><p>4108,24 x , (1) </p><p> () ++= 2121212,0 29,38465,24521,12786,60592,969 xxxxx</p><p>++++ 2231</p><p>2212</p><p>21</p><p>22 37,4491,165801,2671,10424,18 xxxxxxx </p><p>412</p><p>31 32,17004,150 xxx + , (2) </p><p> (%) ++= 2212</p><p>21</p><p>22215 76,251,122,180,231,807,12 xxxxxxx </p><p>41</p><p>3212</p><p>31</p><p>32</p><p>31 54,134,408,148,337,3 xxxxxxx +++ . (3) </p><p> . 2 4 -</p><p> B , 2,0 - 5 - T , (1) (3). </p><p> -, . 2 4, , 12 600 ( 1000 ) - 4080 % 5 . </p></li><li><p> 9 </p><p> B 80- - 120180 , .. 0 ,225 ., 3 . </p><p>. 2. </p><p> () T () </p><p>. 3. 2,0 </p><p> () T () </p><p> =T 550 ( 1000 ) B , .. 4,57,5 . </p><p> - 12 </p></li><li><p> . . 2010. . 2. . 2 </p><p> 10 </p><p> - . </p><p>. 4. 5 () T () </p><p> (2009-2010 ) 10-08-97526 10-01-00085-. </p><p>1. .., .., .. - . .: , 1976. 264 . </p><p>2. .. . .: . 1983 192 . </p><p>3 . .. D- - // . : , 1988. . 140-144. </p></li><li><p> 11 </p><p>4. .., .. / . 1997. . 13.04.98, 1084-98. 10 . </p><p>5. .., .. - . 2- ., . . .: , 1980. 152 . </p><p>6. .., .. - . .: ; -: , 1980. 304 . </p><p>7. .A., .. - // : . . 4. -; . .. . .: , 1987. . 234 257. </p><p> S. Yakovlev, V. Tregubov, S. Yakovlev The changing of mechanical properties of hot-rolled pipes from steel 12hzgnmfba in </p><p>the rotary drawing process The results of theoretical investigations of the changing of mechanical properties of </p><p>hot-rolled pipes from steel 12HZGNMFBA according to deformation level and steady tem-perature after piece tempering in the rotary drawing process are presented. </p><p>Keywords: mechanical properties, rotary drawing, pipe, deformation level, steady temperature, planning of experiments. </p><p> 04.07.10 </p><p> 621.983.044.7.001.24 .. , - -. , ., (4872)33-24-88, glob4361@mail.ru (, , ), .. , - . , ., . , (4872)35-18-32, Vladimir.D.Kuchar@tsu.tula.ru (, , ), .. , . . , ., (4872)35-18-32, kirealena@yandex.ru</p><p>( ) </p><p>+=</p><p>=</p><p>tgrad AA 0</p><p>2</p><p>2 ;0</p><p> (, , ) </p><p> -</p><p> . : , , , . </p><p> , - </p><p>. (1) </p></li></ul>

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