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发明授权
CN101457855B 内衬不锈钢复合无缝管件的生产方法 有权 转让

内衬不锈钢复合无缝管件的生产方法
摘要：
本发明涉及一种内衬不锈钢复合无缝管件的生产方法，其生产步骤为先选取一段碳钢无缝钢管，加工碳钢无缝钢管内表面；再选取一段等长的不锈钢管，加工不锈钢管外表面，且与加工的碳钢无缝钢管为H8/js7的过渡配合或H8/m7的过盈配合；通过油压机将加工好的不锈钢管镶衬到加工好的碳钢无缝钢管中，并形成紧密配合；制得的复合管，再根据所需生产管件进行成形加工，得到所需尺寸和形状的成品管件，加热温度为750～800℃。本发明具有制成的内衬不锈钢复合无缝管件无起包、剥离现象的优点。
摘要（英）：

The invention relates to a method for producing an inside-lining stainless steel composite seamless tube fittings, which has the production step that a carbon steel seamless steel tube is firstly selected, and the inside surface of the carbon steel seamless steel tube is processed; a stainless steel tube with the same length is then selected, the outside surface of the stainless steel tube is processed, and the stainless steel tube forms an H8/js7 transition fit with the carbon steel seamless steel tube or an H8/m7 interference fit with the carbon steel seamless steel tube; the processed stainless steel tube is inlayed into the processed carbon steel seamless steel tube by an oil hydraulic press to form a close fit; a composite tube is obtained and is formed according the required tube fittings, the tube fittings as finished products with the required sizes and shapes are obtained, and the heating temperature is 750 to 800 DEG C. The invention has the advantages of no blister and no peeling of the produced inside-lining stainless steel composite seamless tube fittings.

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