A new method to the production of developing large pipe used for petrol and chemical and electrical power industries is given.
主要研究了用推制式热扩管工艺开发石化及电力用大口径无缝管的新工艺和试制产品的性能 ,设计了适合多品种、多规格的推制扩管加热温度和推制速度等工艺参数 ,为开发大口径石化及电力用无缝钢管生产开辟了新路。
With the change of a seller’s market to a buyers’ market in the electrical power market, this paper analyzes the internal and external environment of electrical power enterprises so as to change their operating behaviors, to improve their economic benefits, and to improve their healthy and sustainable development.
随着电力市场由卖方市场转向买方市场,为了改变电力企业经营行为,提高电力企业的经济效益,促进电力企业的健康可持续发展,分析了电力企业发展的外部和内部环境。