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- Keywords annealing welding;coarse grain zone microstructure;HT250 cast iron;whited annealing; 退火焊接;粗晶区组织;HT250铸铁;白口化退火;
- Some metals weld better than others. 有些金属容易焊，有的不容易焊。
- annealing welding wave 退火焊波
- Anneal means make harden steel soft and remove brittleness. 退火就是使淬火钢变软并消除其脆性。
- On reaching welding heat, the metal surfaces are pressed together. 当金属表面达到焊接热度时就会压在一起。
- annealing welding 退火焊接
- Some of the students are welding capacitor; the others resistor. 学生中的一些人在焊接电容，另一些人在焊接电阻。
- Some of the students are welding capacitors; the others resistors. 学生中的一些人在焊接电容，另一些人在焊接电阻。
- It takes speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
- The reducing annealing furnace is adopted. 采用无氧化还原退火炉。
- Three. They are hardening, temper and anneal. 三种。它们是淬火、回火和退火。
- Three:they are hardening,temper and anneal. 三个过程：它们是淬火、回火和退火。
- It take speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
- Three . They are hardening, temper and anneal . 三种。 它们是淬火、回火和退火。
- Difficulty can anneal one's best quality. 困难可以磨练出一个人最优秀的品质.
- Difficulty can anneal people's best character. 困难可以磨练出一个人最优秀的品质.
- It takes speed to weld steel at this heat. 在这样的高温下熔接钢铁需要快速。
- Difficulty may anneal a person's excellent quality. 困难可以磨练出一个人最优秀的品质.
- They weld the pieces of a broken axle. 他们焊接断了的车轴。
- Why shall harden steel be anneal? 淬火钢为什么要退火呢?
