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(一)钢及高温合金的挤压工艺英国在钢及镍基高温合金方面采用挤压技术较早,经验也较多,主要用在以下三方面。1.随着原子能等工业的发展,非标准的异形断面钢材日益增多,有些特殊形状钢材或合金不能用轧机轧出如带翼的管子等,有些形状虽能轧制,但因批量小,轧制就不如挤压经济。2.在热轧钢管生产上,英、日、西德、瑞典、法、奥均有挤压车间。以2000吨卧式挤压机为例,可生产壁厚为
(A) of the extrusion process of steel and high temperature alloys Britain in the steel and nickel-based superalloy extrusion technology earlier, more experience, mainly used in the following three aspects. 1. With the development of industries such as atomic energy, non-standard deformed section steel is increasing day by day. Some special shaped steels or alloys can not be rolled out by rolling mills, such as winged tubes. Although some shapes can be rolled, System is not as economical economy. 2. In the hot-rolled steel production, Britain, Japan, West Germany, Sweden, France, Austria have extrusion workshop. To 2000 tons of horizontal extrusion machine, for example, can produce wall thickness