Among the various methods of casting production, the most basic method is

Sand casting is the most basic method among various casting production methods.

First, advantages:

Low production cost, good casting performance, convenient cutting, good shock absorption and wear resistance, low notch sensitivity and good heat treatment performance.

Second, the shortcomings:

When there are many casting production processes and materials and the casting quality is not stable enough, the rejection rate is relatively high and the working conditions and working environment are also poor.

Third, the characteristics of casting production:

1, which has wide application range, is not limited by the size, thickness and shape complexity of castings, and the production mode is flexible.

2. A wide range of materials can be used, and a large number of waste metals and renewable resources can be utilized. Compared with forging, enterprises consume less electricity.

3. The castings have certain dimensional accuracy, and the machining allowance is small, which saves machining time and metal materials.

4. Low cost, good comprehensive economic performance, low energy and material consumption and low cost.

Four, commonly used casting methods are:

1, ordinary sand casting, including wet sand mold, dry sand mold and chemically hardened sand mold.

2. Special casting, according to the molding materials, can be divided into special casting with natural ore as the main molding material (such as investment casting, clay casting, shell casting in casting workshop, negative pressure casting, full mold casting, ceramic mold casting, etc.). ) and special casting with metal as the main mold material (such as metal mold casting, pressure casting, continuous casting, low pressure casting, centrifugal casting, etc. ).