Casting Of Crusher Hammer Casting

Hammer crusher is an crucial element parts, in the crushing approach to endure good impact load, so the top quality in the casting of extremely strict needs, however the production of crusher hammer casting difficulty quite high.

The procedure difficulty of hammer crusher

  • 1. the crusher front end casting as case castings, thin wall casting is simple to create cold shut, poured is insufficient, the surface good quality is not good handle.
  • 2. crusher hammer casting from the hot spot is much more, the heat joints are simple to create the shrinkage defect.
  • 3. the casting must immediately after ultrasonic and magnetic particle inspection, high-quality specifications are higher, the liquid steel inner top quality is greater, the manufacturing procedure to be scientific and reasonable.
  • 4. the crusher cavity four elliptical hole in the front end on the hot section is large, easy to generate the phenomenon of sand.

Casting process design of crusher hammer

1. the pouring position and kind of identification

Using flat pouring scheme, two out from the box shape. Decide the face location in six circular shaft center, parting surface above the upper box part, the lower portion is under the box aspect.

2. to establish the procedure parameters

The scale. Taking into account the crusher for front end casting box, vulnerable throughout solidification casting mechanical obstruction, so opt for model scale 1.8%.

3. The finishing allowance.

Because with the substantial size of casting, to enhance the machining precision of surface machining allowance, set around the surface of 18mm, the machining allowance under and lateral for the 15mm.The sub kind of negative numbers. Kind damaging for 3mm, is under the symmetric distribution box.

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