Basic knowledge that Changzhou mechanical processing should have
1: What are the main forms of metal structures?
Answer: There are frame structures, container structures, box structures, and general component structures.
2: How many parts can riveting operations be divided according to the nature of the process?
Answer: It is divided into material preparation, layout, processing and forming, and assembly and connection.
3: What are the connection methods for metal structures?
Answer: There are riveting, welding, hybrid riveting and welding connections, and bolt connections.
4: In the mechanical manufacturing industry, riveters belong to the category of (hot working).
5: What is hot working?
Answer: Metal materials are fully or partially heated and processed into shape.
6: What is the main structure used to manufacture a honing frame structure?
Answer: It is mainly based on profiles.
7: What is the main structure used to manufacture container structures?
Answer: It is mainly based on the board.
8: The box structure and general structure are structures 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 transportation, lifting, and storage.
11: The deformation of steel can affect the normal operation of processes such as lifting, cutting, and gas cutting of parts.
12: If the deformation generated during the machining process of the parts is not corrected, it will affect the correct assembly of the structure
13: The deformation caused by welding can reduce the accuracy of assembly, causing additional stress inside the steel structure and affecting the strength of the components.
14: The deformation of flat steel includes bending, twisting, and bending torsion composite deformation.
15: What are the types of multi roll straightening machines that can be classified based on the arrangement of the shaft rollers and the position of the adjustment rollers?
Answer: It can be divided into upper and lower roller parallel straightening machines and upper and lower roller tilting straightening machines.
16: What are the heating methods for flame correction?
Answer: There are points, lines, and triangles for heating.
17: What factors determine the effectiveness of flame correction?
Answer: It is determined by the heating position and temperature.
18: What are the methods of correction?
Answer: Mechanical correction, manual correction, flame correction, high-frequency heat correction.
19: What is the process of making metal structures?
Answer: Layout and marking are the first steps in making metal structures.
20: What are the impacts of layout and marking on products?
Answer: It will directly affect product quality, production cycle, and cost.