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Методика расчета 1 страница
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Исходные данные
1. Габариты опоки в свету 
, м.
2. Высота опоки 
, м.
3. Технологически необходимая степень уплотнения смеси 
, т/м3.
4. Начальная плотность смеси 
, т/м3.
5. Давление воздуха в магистральной смеси 
, МПа.
Схема прессового механизма представлена на рис. 4.1.
Задача расчета: определение основных конструктивных параметров машины и расхода воздуха для уплотнения одной полуформы.
1. Определяется полезная нагрузка на машину 
(при нижнем расположении прессующего поршня):
, кН,
где 
– вес опоки (выбирается из ГОСТ в зависимости от материала опоки: сталь, алюминий, чугун, магниевый сплав и размеров опоки).
Значения масс опок приведены в табл. 4.1.
Рис. 4.1.Схема прессового механизма:
1 – прессовый цилиндр; 2 – прессовый поршень; 3 – модель; 4 – опока;
5 – наполнительная рамка; 6 – прессовая колодка; 7 – траверса;
8 – отверстие для впуска воздуха в прессовый цилиндр
Таблица 4.1
Масса опок, кг [5–8]
| Материал опок и способ их изготовления | Длина L 0и ширина B 0 опок в свету, мм | Варианты исполнения | Высота опок, мм | ||||||||||||||
| L 0 | B 0 | ||||||||||||||||
Цельнолитые из сплава
 на основе Mg(МЛ5, МЛ6)
| – | 2,7 | 3,0 | 3,5 | 4,0 | – | – | – | – | – | – | – | – | – | – | ||
| – | 2,7 | 3,1 | 3,5 | 4,0 | – | – | – | – | – | – | – | – | – | – | |||
| 3,5 – | 4,2 – | 4,9 – | 5,6 6,3 | – 7,7 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| 4,0 – | 4,6 5,3 | – 6,0 | – 6,7 | – 8,0 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| 4,0 – | 4,3 5,3 | – 6,0 | – 6,7 | – 8,0 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| 4,0 5,3 | – 5,3 | – 6,0 | – 6,7 | – 8,0 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | 5,7 9,0 | 6,4 10,0 | 7,2 11,3 | 8,5 14,5 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| – | – | 9,0 | 10,5 | 11,7 | 14,0 | – | – | – | – | – | – | – | – | – | |||
| – | – | 9,2 | 10,5 | 11,7 | 14,0 | – | – | – | – | – | – | – | – | – | |||
| – – | – – | 16,8 – | 18,2 – | 20,3 – | – 24,5 | – 27,3 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | 18,2 – | 19,6 – | 21,7 – | – 26,0 | – 28,7 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | 17,5 | 19,6 – | 23,0 – | – 28,0 | – 31,5 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | 17,5 – | 19,6 – | 23,0 – | – 28,0 | – 31,5 | – – | – – | – – | – – | – – | – – | – – |
Продолжение табл. 4.1
| – – | – – | – – | 27,0 – | 32,0 – | – 39,0 | – 43,0 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | – – | 26,0 – | 31,0 – | – 37,0 | – 42,0 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | – – | 27,0 – | 32,0 – | – 39,0 | – 43,0 | – – | – – | – – | – – | – – | – – | – – | ||||
| Цельно литые из сплава на основе Al(АК9,АК7, АК5М7) | – | 3,8 | 4,4 | 5,0 | 5,6 | – | – | – | – | – | – | – | – | – | – | ||
| – | 3,8 | 4,5 | 5,0 | 5,6 | – | – | – | – | – | – | – | – | – | – | |||
| 5,0 – | 6,0 – | 7,0 – | 8,0 9,0 | – 11,0 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| 5,6 – | 6,6 7,6 | – 8,6 | – 9,6 | – 11,6 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| 5,6 – | 6,6 7,6 | – 8,6 | – 9,6 | – 11,6 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| 5,6 – | 6,6 7,6 | – 8,6 | – 9,6 | 11,2 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | 8,2 13,0 | 9,2 14,5 | 10,2 16,2 | 12,2 19,4 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| – | – | 13,5 | 15,0 | 16,7 | 20,0 | – | – | – | – | – | – | – | – | – | |||
| – | – | 13,5 | 15,0 | 16.7 | 20,0 | – | – | – | – | – | – | – | – | – | |||
| – – | – – | 24,0 – | 26,0 – | 29,0 – | – 35,0 | – 39,0 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | 26,0 – | 28,0 – | 31,0 – | – 37,0 | – 41,0 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | 25,0 – | 28,0 – | 33,0 – | – 40,0 | – 45,0 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | 25,0 – | 28,0 – | 33,0 – | – 40,0 | – 45,0 | – – | – – | – – | – – | – – | – – | – – |
Продолжение табл. 4.1
| – – | – – | – – | 39,0 – | 46,0 – | – 56,0 | – 63,0 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | – – | 37,0 – | 44,0 – | – 53,0 | – 60,0 | – – | – – | – – | – – | – – | – – | – – | ||||
| – – | – – | – – | 39,0 – | 46,0 – | – 56,0 | 63,0 | – – | – – | – – | – – | – – | – – | – – | ||||
Цельно-
 литейные стальные
| 8,5 – | 10,6 13,5 | 13,8 15,5 | 15,8 17,5 | 20,3 21,5 | – – | – – | – – | – – | – – | – – | – – | – – | – – | |||
| 9,5 – | 11,8 15,0 | 15,3 17,4 | 17,6 19,8 | 22,0 24,6 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| 10,5 – – | 13,2 17,0 – | 16,5 20,0 – | 19,5 23,0 30,0 | – – 36,0 | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | ||||
| – | – | – | 50,0 | 53,0 | 64,0 | 71,0 | 78,0 | – | – | – | – | – | – | – | |||
| – | – | – | – | 66,0 | 74,0 | 82,0 | 90,0 | 98,0 | 106,0 | – | – | – | – | – | |||
| – | – | – | – | 71,0 | 80,0 | 89,0 | 98,0 | 107,0 | 116,0 | – | – | – | – | – | |||
| – | – | – | – | 76,0 | 85,0 | 94,0 | 103,0 | 112,0 | 121,0 | – | – | – | – | – | |||
| – | – | – | – | 76,0 | 85,0 | 94,0 | 103,0 | 112,0 | 121,0 | – | – | – | – | – | |||
| – | – | – | – | 115,0 | 127,0 | 135,0 | 148,0 | 161,0 | 173,0 | – | – | – | – | – | |||
| – | – | – | – | 120,0 | 135,0 | 149,0 | 162,0 | 176,0 | 190,0 | – | – | – | – | – | |||
| – – | – – | – – | 126,0 – | 140,0 – | 150,0 – | 164,0 – | 178,0 – | 195,0 – | – 230,0 | – 244,0 | – – | – – | – – | ||||
| – | – | – | – | – | 146,0 | 156,0 | 172,0 | 187,0 | 205,0 | – | – | – | – | – | |||
| – – | – – | – – | – – | 154,0 – | 164,0 – | 179,0 – | 196,0 – | 228,0 – | – 250,0 | – 266,0 | – – | – – | – – | ||||
| – – – | – – – | – – – | – – – | 380,0 – – | 412,0 – – | 435,0 – – | 458,0 – – | 480,0 – – | – 510,0 525,0 | – 535,0 552,0 | – – – | – – – | – – – | ||||
| – | – | – | – | – | 392,0 | 413,0 | 435,0 | 465,0 | 487,0 | – | – | – | – | – | |||
Продолжение табл. 4.1
| – – | – – | – – | – – | 409,0 – | 431,0 – | 455,0 – | 478,0 – | 500,0 – | – 572,0 | – 600,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 451,0 – | 480,0 – | 509,0 – | 537,0 – | 566,0 – | – 640,0 | – 680,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 469,0 – | 501,0 – | 534,0 – | 568,0 – | 600,0 – | – 680,0 | – 720,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 474,0 – | 511,0 – | 541,0 – | 575,0 – | 612,0 – | – 686,0 | – 710,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 501,0 – | 535,0 – | 568,0 – | 600,0 – | 634,0 – | –740,0 | – 798,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 502,0 – | 538,0 – | 568,0 – | 600,0 – | 635,0 – | – 760,0 | – 820,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | – – | – – | 950,0 – | 1020,0 – | 1084,0 – | – – | – 1205,0 | – 1300,0 | – – | – – | ||||
| – – | – – | – – | – – | – – | – – | 998,0 – | 1057,0 – | 1120,0 – | – – | – 1265,0 | – 1365,0 | – – | – – | ||||
| – – | – – | – – | – – | – – | – – | 1038,0 – | 1134,0 – | 1173,0 – | – – | – 1325,0 | – 1430,0 | – – | – – | ||||
| – – | – – | – – | – – | – – | – – | 1040,0 – | 1092,0 – | 1169,0 – | – – | – 1285,0 | – 1390,0 | – – | – – | ||||
| – – | – – | – – | – – | – – | – – | 1085,0 – | 1144,0 – | 1208,0 – | – – | – 1780,0 | – 1445,0 | – – | – – | ||||
| – – | – – | – – | – – | – – | – – | 1135,0 – | 1196,0 – | 1257,0 – | – – | – 1870,0 | – 1490,0 | – – | – – | ||||
| – – – | – – – | – – – | – – – | – – – | – – – | 1270,0 – – | 1340,0 – – | 1420,0 – – | – – – | – 1895,0 – | – 1915,0 – | – – 2150,0 | – – 2300,0 | ||||
| – – – | – – – | – – – | – – – | – – – | – – – | 1345,0 – – | 1415,0 – – | 1495,0 – – | – – – | – 1920,0 – | – 2000,0 – | – – 2270,0 | – –2415,0 |
Продолжение табл. 4.1
| – – – | – – – | – – – | – – – | – – – | – – – | 1380,0 – – | 1460,0 – – | 1530,0 – – | – – – | – 1950,0 – | – 2080,0 – | – – 2380,0 | – – 2538,0 | ||||
| – – – | – – – | – – – | – – – | – – – | – – – | 1350,0 – – | 1420,0 – – | 1500,0 – – | – – – | – 1830,0 – | – 1970,0 – | – – 2260,0 | – –2410,0 | ||||
| – – – | – – – | – – – | – – – | – – – | – – – | 1400,0 – | 1475,0 – | 1550,0 – | – – – | – 1940,0 | – 2070,0 | – – 2370,0 | – –2525,0 | ||||
| – – – | – – – | – – – | – – – | – – – | – – – | 1420,0 – – | 1460,0 – – | 15550,0 – – | – – – | – 1950,0 – | – 2100,0 – | – – 2370,0 | – –2528,0 | ||||
| – – – | – – – | – – – | – – – | – – – | – – – | 1440,0 – – | 1525,0 – – | 1620,0 – – | – – – | – 2030,0 – | – 2180,0 – | – – 2475,0 | – –2635,0 | ||||
| – – – | – – – | – – – | – – – | – – – | – – – | 1560,0 – – | 1650,0 – – | 1745,0 – – | – – – | – 2020,0 – | – 2170,0 – | – – 2450,0 | – – 2605,0 | ||||
| – – – | – – – | – – – | – – – | – – – | – – – | 1550,0 – – | 1634,0 – – | 1728,0 – – | – – – | – 2170,0 – | – 2320,0 – | – – 2655,0 | – –2830,0 | ||||
 Цельно-литые чугунные
| 10,8 – | 13,5 16,5 | 16,8 19,0 | 19,5 21,5 | 25,0 24,0 | – – | – – | – – | – – | – – | – – | – – | – – | – – | |||
| 11,5 – | 14,5 18,0 | 18,5 20,5 | 21,5 23,0 | 25,5 27,5 | – – | – – | – – | – – | – – | – – | – – | – – | – – | ||||
| 12,5 – – | 16,0 21,0 – | 20,5 24,0 – | 24,0 27,5 28,0 | – – 38,0 | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | ||||
| – | – | – | 74,0 | 80,0 | 90,0 | 99,0 | 108,0 | – | – | –– | – | – | – | – | |||
| – | – | – | – | 88,0 | 100,0 | 110,0 | 121,0 | 131,0 | 144,0 | – | – | – | – | – |
Продолжение табл. 4.1
| – | – | – | – | 93,0 | 105,0 | 117,0 | 129,0 | 140,0 | 151,0 | – | – | – | – | – | |||
| – | – | – | – | 98,0 | 111,0 | 123,0 | 136,0 | 148,0 | 161,0 | – | – | – | – | – | |||
| – | – | – | – | 98,0 | 111,0 | 123,0 | 136,0 | 148,0 | 161,0 | – | – | – | – | – | |||
| – | – | – | – | 158,0 | 175,0 | 192,0 | 210,0 | 228,0 | 245,0 | – | – | – | – | – | |||
| – | – | – | – | 168,0 | 189,0 | 209,0 | 233,0 | 253,0 | 274,0 | – | – | – | – | – | |||
| – – | – – | – – | 182,0 – | 202,0 – | 222,0 – | 242,0 – | 262,0 – | 282,0 – | – 328,0 | – 348,0 | – – | – – | – – | ||||
| – | – | – | – | – | 202,0 | 223,0 | 243,0 | 256,0 | 275,0 | – | – | – | – | – | |||
| – – | – – | – – | – – | 227,0 – | 247,0 – | 268,0 – | 289,0 – | 311,0 – | –358,0 | – 380,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 501,0 – | 538,0 – | 560,0 – | 590,0 – | 619,0 – | –640,0 | – 680,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 507,0 – | 536,0 – | 562,0 – | 595,0 – | 623,0 – | – 685,0 | – 729,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 529,0 – | 561,0 – | 592,0 – | 623,0 – | 655,0 – | – 732,0 | – 778,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 570,0 – | 609,0 – | 645,0 – | 683,0 – | 721,0 – | – 826,0 | – 873,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 596,0 – | 640,0 – | 681,0 – | 720,0 – | 760,0 – | – 872,0 | – 917,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 613,0 – | 656,0 – | 695,0 – | 730,0 – | 778,0 – | –768,0 | – 812,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 663,0 – | 716,0 – | 765,0 – | 810,0 – | 860,0 – | – 926,0 | – 965,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | 698,0 – | 750,0 – | 798,0 – | 819,0 – | 897,0 – | – 822,0 | – 871,0 | – – | – – | – – | ||||
| – – | – – | – – | – – | – – | – – | 1425,0 – | 1482,0 – | – | – – | – 1940,0 | – 1105,0 | – – | – – |
Продолжение табл. 4.1
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