spheroidal annealing

Lastly, effects of annealing under high magnetic field on the structure of spheroidal graphite cast iron, gray cast iron and 45# steel were investigated. The solidification of Al-12% Si under high magnetic field was also carried out.

最后本文还分别进行了灰铁、球铁、45钢强磁场下退火处理，以及Al&12%Si合金强磁场下凝固实验，并对实验结果进行了分析。

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The results show that the spheroidal annealing structure in which the size and spacing of carbide particles are bigger can he gained through suitably rising the spheroidal annealing temperature.

结果表明：适当提高球化退火温度，可获得碳化物粒子尺寸及间距均较大的球化退火组织。

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For big diameter wire, the tradition spheroidal annealing technology is not satisfactory, and effects the production.

对粗直径线材，用传统工艺尚不能获得满意的球化效果，影响了大直径冷镦用钢材料的生产。

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Production of spheroidal annealing of cold rolled 25 steel strip

25钢冷轧球化退火钢带的生产

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By means of the heat treatment process such as mist cooling after forged+ normalizing mist cooling+ spheroidal annealing, in this case, the qualification rate of carbon network of the bearing steel forging shall be improved from 66% to ( 93.4%).

通过采用锻后雾冷+正火雾冷+球化退火的热处理工艺，将轴承钢锻件网状碳化物的合格率从66%提高至93.4%。

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Take the isothermal spheroidal annealing of 45 steel parts for example, the utility of the temperature control system is introduced by this paper.

本文以45钢零件进行等温球化退火热处理工艺为例，介绍炉温控制系统的具体应用。

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A New Spheroidal Annealing Technology for a Cold-Forging Steel of Low Carbon

一种新的低碳冷镦钢的球化工艺

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