颚式破碎机的原材料构成？ What is the jaw crusher made of ?

颚式破碎机的原材料构成？ 

What is the jaw crusher made of ?

Jaw crushers are heavy duty machines and hence need to be robustly constructed. The outer frame is generally made of cast iron or steel. The jaws themselves are usually constructed from cast steel. They are fitted with replaceable liners which are made of manganese steel, or Ni-hard (a Ni-Cr alloyed cast iron).

颚式破碎机是一种重型机器，因此需要坚固构造。 颚式破碎机的壳体通常由铸钢或钢板制成。 动鄂头本身通常是由铸钢制成的。 它们配有由锰钢或ni-hard（Ni-Cr合金铸铁）制成的可更换衬板。