我国不锈钢管生产技术的进展及其与国外的差距

Development of Domestic Manufacturing Technologies for Stainless Steel Tubes and Gap with Similar Technologies developed Overseas

详细介绍了我国不锈钢管生产技术——热轧穿孔及冷加工生产技术自 50年代以来的进展。从管坯生产工艺、热轧钢管生产工艺、冷拔冷轧工艺、脱脂工艺、热处理工艺、工艺润滑、表面抛光、无损检测及钢管深加工等九个方面指出了我国与国外的差距。提出了“发展挤压工艺，开发热挤压管产品”，“热处理工艺推广光亮化”，“组织专业化生产专用管”，“发展钢管深加工，提高企业经济效益”的建议。

Detailed in the article are the development of domestic manufacturing technologies for stainless steel tubes, including hot－ piercing and cold－ processing techniques developed since the '50s. Also addressed here is the gap between the domestic sector and its counterpart overseas on the said technologies involving nine aspects, namely, bloom－ making process, tube hot－ rolling process, tube cold－ rolling/drawing processes, degreasing process, heat treatment process, process lubrication, surface polishing, NDT and tube deep－ processing. Proposals are put forward, covering such issues as“ developing extrusion process and hot－ extruded tubulars ',“ spreading out bright heat treatment process ',“ organizing specialized production of specialty tubing ' and“ developing steel tube deep－ processing to enhance economic benefits for businesses ', etc.