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Teach you to understand the sand precision casting method
- Categories: Company News
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- Time of issue:2022-06-07
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(Summary description) Sand precision casting is preferred. According to statistics, 60-70% of all castings are produced with sand molds, and about 70% of them are produced with clay sand molds.
Teach you to understand the sand precision casting method
(Summary description) Sand precision casting is preferred. According to statistics, 60-70% of all castings are produced with sand molds, and about 70% of them are produced with clay sand molds.
- Categories: Company News
- Author:
- Origin:
- Time of issue:2022-06-07
- Views: 0
Information
Precision casting is a common processing method for many precision castings, so do you know about the method of precision casting? Let's take a brief look at it:
Sand precision casting is preferred. According to statistics, 60-70% of all castings are produced with sand molds, and about 70% of them are produced with clay sand molds. The main reason is that compared with other casting methods, sand casting has low cost, simple production process and short production cycle. Therefore, castings such as engine cylinder blocks, cylinder heads, crankshafts, etc. of automobiles are produced by the clay green sand process. When the wet type cannot meet the requirements, consider using the clay sand surface dry sand type, dry sand type or other sand type. The weight of castings produced by clay wet sand casting can range from a few kilograms to tens of kilograms, while the castings produced by clay dry casting can weigh dozens of tons.
Generally speaking, for medium and large castings, cast irons can be produced with resin no-bake sand molds, and steel castings can be produced with water glass sand molds. Castings with precise dimensions and smooth surfaces can be obtained, but the cost is high. Of course, the casting accuracy, surface finish, material density, metallographic structure, mechanical properties, etc. produced by sand casting are often poor, so when these performance requirements of the casting are higher, other casting methods should be used, such as investment (loss Wax) casting, die casting, low pressure casting, etc.
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