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###1、 Material selection

The main materials for the shell of the trolley furnace are steel plates and section steels. The selection of these materials is based on their high strength, good high-temperature resistance, and welding performance. Specifically:

*Steel plate: High quality cold-rolled steel plate is usually used, which has good flatness and low thermal deformation coefficient, and can maintain stable shape and structure in high temperature environments.

** * Section steel * *: Section steel such as channel steel, angle steel, etc. are used as the main supporting components of the frame. They are welded to steel plates to form a sturdy outer shell frame.

###2、 Welding process

The production of the shell is mainly achieved through welding technology, and the specific steps are as follows:

1. Frame Welding: Firstly, according to the design drawings, cut, bend, and assemble the steel sections according to the predetermined size and shape, and then use welding equipment to firmly weld the various components together to form the frame of the shell. During the welding process, it is necessary to ensure the quality of the weld seam and avoid defects such as cracks and slag inclusions.

2. Steel plate welding: After the frame welding is completed, cut the steel plate into the appropriate shape and size according to the design requirements, and then weld it to the frame. Attention should be paid to the gap and positional accuracy between the steel plate and the frame during welding to ensure the sealing and stability of the shell.

3. * * Surface Treatment * *: After welding is completed, the outer shell needs to be surface treated, such as removing welding slag, polishing the weld seam, spraying anti rust paint, etc., to improve the appearance and corrosion resistance of the outer shell.

###3、 Characteristics and advantages

The trolley furnace shell made of welded steel plates and section steel has the following characteristics and advantages:

** * Sturdy Structure * *: Steel plates and sections are firmly connected together through welding processes to form a sturdy shell structure that can withstand high temperatures and mechanical stresses.

*Good high temperature resistance: The selected steel plates and sections have good high temperature resistance and can maintain stable shape and structure in high temperature environments.

*Good sealing: Through precise welding processes and surface treatment, the sealing of the shell can be ensured, reducing heat loss and oxygen ingress.

*Convenient maintenance: The structural design of the shell is reasonable, making it easy to disassemble and repair, reducing maintenance costs and downtime.

In summary, the production method of the trolley furnace shell mainly adopts the welding of steel plates and section steels. This production method has the advantages of strong structure, good high temperature resistance, good sealing, and easy maintenance.