Пісок Лиття;sand Цвіль Лиття;sand Цвіль Лиття

In the total production of castings, 60~70 percent of the castings are productioned with sand type, and about 70 percent of them are made of dry sand sand for molding material production of castings. More than 80 percent of clay dry sand and over 73 percent is that sand is and sand is low cost, simple production process and short production cycle comped com from from east methods. So the castings uch as the car cylinder block, циліндр головка, колінчастий вал і so on are вироблений by глина мокрий процес. When the wet type can not meet the requirements of the use of table dry sand type, dry sand type or other sand type. Castings by clay ly wet sand can wegh from a few kilo to dozens of kilo, while dry clay production castings can wewe of tons.
For medium and large castings, resin can be used from hard sand, steel casting can be duced with water glass sand, can get accurate size, surface castings, but the cost is high.
Single small batch of production of heavy castings, is still an important method, manual modeling can adapt to a divers of complex requirements are more flexible, do not require a lot of process equipment. Can use sand type, VRH вода скло sand, organic ester вода скло самотвердий sand, глина dry, смола самотвердий пісок і цемент пісок тип; for single production of heavy casting, low cost and швидке виробництво. маса виробництво або довгострокове виробництво з завершене продукти використання багатокоробкове моделювання, розділення коробка моделювання метод є більше відповідний. хоча цвіль, пісок коробка почався до інвестувати високий, але може бути компенсований від економія моделювання години і покращення продукт якість.
Sand casting production, surface finish, material density, mechanical properties and other aspects are often poor, so when the performance requirements of the casting are higher, other casting methods should be adopted, such as melting mold (віск) casting, low тиск casting and so on.