心态热处理

晨曦_hH9FP

      每个人的经历不同，性格心态呢也有区别。
      有的人从小周围都是和和气气的，干什么事情都顺顺利利的，走的路也是平平坦坦。那么他本人呢大概率是温和，自信。但猛的遇到挫折，不知如何面对，可能承受不了。就像是“退火态”的钢铁，均布球状珠光体，软，粘，有一定的韧性，但强度低些，遇到大的外力容易屈服。可以“正个火”加强下自己。
      有的人呢，遇到的事情多些复杂些，走的是乡间小路，有颠簸，时而上坡时而下坡。这样人的性格呢，好的情况是果断刚强，愈挫愈勇。不好的情况呢可能好胜敏感而自卑。就像是淬火后的马氏体，过饱和固溶体，组织位错拥挤，硬度很高的，就是内应力太大，容易有裂纹。最好是自我疏解调节，给自己做个“回火”，心态会好很多。
      审视自我，拥有好心态，处理好每个小经历，看来也是很有必要的。

engine

面心立方，无磁，不喜扎堆，内外方正

山东土狗

annealing is to heat the metal to 30-50 above the critical temperature and cool it in the furnace slowly. it can strengthen the ducility and  remove the internal stress and gas. Normally coil metals are deliverd in annealed state.
normarlizing is to heat up to 30-50 celsius degree and then coole in air. it can refine the grain structre and remove internal stress. can be used after stamping to refine the microstrucre.
hardening is to heat up tp 30-40 above and quench it very fast in water or oil, this will harden the surface strengthen resist to wear. Grears cutting tools dies need to do this.

山东土狗

tempering is a low temperature heat treatment normally performed after hardening.It decreaces some hardness and strengthen toughness. temperature is bolow A1 .
160 - 300 celsius degree for hardening componnets nad working tool steel, hardness is about HRC 60
300-500 FOR spring steels hardness is about HRC 45
500- used for quemched amd tempered stells, hardness can vary from HB300 to HRC65