- •Материаловедение
- •1. Цель, содержание и общие указания по выполнению курсовой работы
- •2. Задания и методические указания по выполнению курсовой работы
- •3. Выбор материала
- •4. Выбор метода получения заготовки
- •5. Проектирование технологического процесса изготовления заготовки
- •Анализ конструкции отливки
- •Разработка чертежа элементов литейной формы
- •Определение величины полного припуска на механическую обработку
- •Высота нижних вертикальных знаков стержней для сырых, сухих и твердеющих в контакте с оснасткой форм
- •Зазоры между знаковыми поверхностями формы и стержня (см. Рис. 2)
- •Определение суммарного сечения питателей
- •Размеры шлакоуловителей
- •Размеры трапецеидальных питателей
- •Основные размеры опок, мм (гост 2133–75)
- •Высота опок (гост 2133–75)
- •Зависимость толщины слоя формовочной смеси на различных участках формы от массы отливки
- •Коэффициент к1 для определения ориентировочной расчетной массы поковки
- •Припуски на сторону на механическую обработку поковок
- •Величина штамповочных уклонов
- •Минимальные радиусы закруглений наружных углов
- •Сортамент круглой, квадратной и шестигранной стали
- •6. Обеспечение заданных механических и эксплуатационных свойств детали
- •7. Маршрутная карта технологического процесса изготовления детали
- •8. Специальный вопрос
- •Литература
Основные размеры опок, мм (гост 2133–75)
Средний размер опоки в свету |
Длина или диаметр опоки в свету |
Ширина опоки в свету | |||||||||||||||||||||||||||||||
250 |
300 |
360 (350) |
400 |
450 |
500 |
560 (550) |
600 |
630 (650) |
710 (700) |
750 |
800 |
900 |
1000 |
1100 |
1200 |
1400 |
(1500) |
1600 |
1800 |
2000 |
2200 |
2500 (2400) |
2600 |
2800 |
3000 |
3200 (3250) |
3600 (3500) |
3800 (3750) |
4000 |
4200 (4250) |
4500 | ||
До 500 |
300 |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
360 (350) |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
400 |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
450 |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
500 |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
560 (550) |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
600 |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
630 (650) |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
710 (700) |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
750 |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
500–755 |
800 |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
900 |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
1000 |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
1100 |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
1200 |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
756–1050 |
1400 |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
(1500) |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
1600 |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
1051–1500 |
1800 |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
2000 |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
2200 |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– | |
1501–2500 |
2500 (2400) |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– |
– |
2600 |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– |
– | |
2800 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– | |
3000 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– | |
3200 (3250) |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– | |
3600 (3500) |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– | |
3800 (3750) |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– | |
4000 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– | |
2501–3500 |
4200 (4250) |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
4500 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ | |
4800 (4750) |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ | |
5000 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ | |
5600 (5500) |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ | |
3501–5000 |
6000 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
6300 (6500) |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– | |
7100 (7000) |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
– |
– |
– |
– |
– |
– |
– | |
Примечание. Размеры опок, указанные в скобках при проектировании не применять. |
Таблица 11