Method for making ferrite stainless steel seamless pipes and cold working process thereof

Method for making ferrite stainless steel seamless pipes and cold working process thereof

This invention is a facture of a ferritic stainless steel seamless pipe, including the steel ingot with well-proportioned grain sine and proper technical condition; the forging compress ratio is 8-12; the starting temperature of the forging processing is 1050 deg. C -1120 deg. C, the ending temperat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: QINGLIAN YU
Format: Patent
Sprache:eng
Schlagworte:
ALLOYS
BLASTING
CHEMISTRY
ENGINEERING ELEMENTS AND UNITS
FERROUS OR NON-FERROUS ALLOYS
FORGE FURNACES
FORGING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HAMMERING
HEATING
JOINTS OR FITTINGS FOR PIPES
LIGHTING
MEANS FOR THERMAL INSULATION IN GENERAL
MECHANICAL ENGINEERING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METALLURGY
PERFORMING OPERATIONS
PIPES
PRESSING METAL
PUNCHING METAL
RIVETING
ROLLING OF METAL
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THERMAL INSULATION IN GENERAL
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WEAPONS
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Beschreibung
Zusammenfassung:This invention is a facture of a ferritic stainless steel seamless pipe, including the steel ingot with well-proportioned grain sine and proper technical condition; the forging compress ratio is 8-12; the starting temperature of the forging processing is 1050 deg. C -1120 deg. C, the ending temperature is 800 deg. C-850 deg. C; process the forging stick to pipe blank and then heat; the perforation and hot-rolling; orderly cold-roll, draw and anneal the former relating molded pipelines and make the seamless pipe. This invention greatly improves the finished products ratio of the ferritic stainless steel seamless pipe, reduces the cost, improves the present technology and has economic significance. It is suitable for the industrial popularization and application.