1: What are the main forms of metal structures? 
Answer: There are frame structure, container structure, box structure and general component structure.
2: How many parts can the riveting operation be divided into according to the nature of the process?
Answer: Divided into material preparation, lofting, processing and forming, assembling and connecting.
3: What are the connection methods of metal structures?
Answer: There are riveting, welding, riveting and welding mixed connection, and bolt connection.
4: Riveters belong to (thermal processing category) in the machinery manufacturing industry.
5: What is thermal processing?
Answer: The metal materials are all or partly heated and processed into shapes.
6: What is the main structure of the truss structure?
Answer: Take the profile as the main body.
7: What is the main structure of the container structure?
Answer: It is mainly based on sheet metal.
8: The box structure and general structure are made of a mixture of (sheet) and (profile).
9: Material preparation refers to the preparation of (raw materials) and (parts blanks).
10: Steel plates and profiles can cause deformation during the process (transportation, hoisting, storage).
11: The deformation of the steel will affect the normal operation of the parts (lifting, blanking, gas cutting) and other processes.
12: If the deformation of the part produced during the processing process is not corrected, it will affect the structure (correct assembly).
13: The deformation caused by welding will reduce the assembly (precision), causing additional stress in the steel structure, affecting ( The strength of the component).
14: The deformation of flat steel includes (bending, twisting, combined bending and torsion deformation).
15: According to the arrangement of the shaft roller and the position of the adjusting roller, what kinds of multi-roll straightening machines can be divided into?
Answer: It can be divided into parallel straightening machine for upper and lower roller rows and tilt straightening machine for upper and lower rollers.
16: What are the heating methods for flame correction?
Answer: Dotted, linear and triangular heating.
17: What factors determine the effect of flame correction?
Answer: It is determined by the heating position and heating temperature.
18: What are the corrective methods?
Answer: Mechanical correction, manual correction, flame correction, high frequency heat realignment.
19: What is the first process of making metal structures?
Answer: Lofting and numbering is the first process of making metal structures.
20: What are the effects of stakeout and numbering on the product?
Answer: It will directly affect the quality of the product and have a direct impact on the production cycle and cost.