JB/T 12467-2015Three-roll cross rolling tube mills (English PDF)

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Contents

• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 4 Model, type and basic parameters
• 4.1 Model
• 4.2 Type
• 4.3 Basic parameters
• 5 Technical requirements
• 5.1 General requirements
• 5.2 Requirements on castings, forgings and welded parts
• 5.3 Assembly requirements
• 5.4 Painting requirements
• 5.5 Requirements on the hydraulic, lubrication and pneumatic systems
• 5.6 Piping requirements
• 5.7 Requirements on the electrical system
• 5.8 Requirements on the inspection and on the supply
• 6 Inspection and tests
• 6.1 General
• 6.2 Inspection of the appearance
• 6.3 Inspection of the type and of the basic parameters
• 6.4 Performance inspection
• 6.5 No-load test on site
• 6.6 Load test on site
• 7 Marking, packaging, transport and storage
• Figure 1 Diagram of the rolling deformation zone of the three roll cross rolling pipe mill
• Figure 2 Diagram of the throat of the three roll cross rolling pipe mill
• Figure 3 Diagram of the rolling angle of the rolls
• Figure 4 Diagram of the feed angle of the rolls
• Figure 5 Diagram of the three roll cross rolling pipe mill unit with single mandrel restrained rolling
• Figure 6 Diagram of the three roll cross rolling pipe mill unit with circulating mandrel floating rolling
• Figure 7 Diagram of the three roll cross rolling pipe mill unit with circulating mandrel restrained rolling
• Figure 8 Elevation diagram of the single mandrel restraining structure
• Figure 9 Elevation diagram of the circulating mandrel floating structure
• Figure 10 Elevation diagram of the circulating mandrel restraining structure
• Figure 11 Diagram of the open housing three roll cross rolling pipe mill
• Figure 12 Diagram of the fixed housing three roll cross rolling pipe mill
• Figure 13 Diagram of the inspection method of the fixed joint surface of the housing
• Figure 14 Diagram of the inspection method of the rolling centre line
• Figure 15 Diagram of the inspection method of the throat of the three roll cross rolling pipe mill
• Figure 16 Diagram of the inspection method of the feed angle of the three roll cross rolling pipe mill
• Table 1 Basic parameters