In the fields of life sciences and medicine, biological safety cabinets play a vital role in providing a safe and protective environment for experimental operations. The quality and performance of biological safety cabinets largely depend on sheet metal processing technology, especially splicing technology. Below, we will explore the splicing technology in sheet metal processing of biological safety cabinets in depth.

Special requirements for splicing technology of biological safety cabinets

As protective equipment, biological safety cabinets must ensure that the internal environment is strictly isolated from the outside world to prevent the leakage of harmful biological factors. This requires that the splicing parts of its sheet metal processing have extremely high sealing and stability. In the sheet metal processing of biological safety cabinets, any tiny gaps or loose splicing may lead to biosafety risks. Therefore, the selection and implementation of splicing technology is crucial.

Application of common splicing processes in biological safety cabinets

Welding process

Welding is a commonly used splicing method in sheet metal processing of biological safety cabinets. Argon arc welding is widely used in this field. It can form a firm connection between the splicing parts of metal sheets without adding filler metal. In the custom processing of biological safety cabinets, for the splicing of the cabinet side panels and back panels, argon arc welding can ensure that the weld is flat and smooth, effectively reduce the generation of gaps, and greatly improve the sealing. However, the welding process also has certain disadvantages. The high temperature generated during the welding process may cause the plate to deform, affecting the overall accuracy of the biological safety cabinet, and the weld after welding needs to be polished and polished, which increases the processing cost and time.

Riveting process

Riveting is also a feasible splicing method. In the sheet metal processing of biological safety cabinets, the connection between the plates can be achieved by passing the rivets through the plates to be connected and fastening them with riveting equipment. This process operation is relatively simple and will not cause the plate to deform due to high temperature. For example, in some parts that have slightly lower requirements for sealing but certain requirements for structural strength, such as the splicing of some frames of biological safety cabinets, riveting can play a better role. However, riveting may leave rivet heads on the surface of the plate, affecting the appearance, and the sealing of the rivet joint is slightly inferior to welding.

Bonding process

With the development of material technology, bonding process has gradually been applied in the sheet metal processing of biological safety cabinets. Select high-performance sealant, apply it to the splicing of the plate, and form a connection after curing. This process has unique advantages in ensuring sealing, can fill tiny gaps and form a good sealing layer. In some internal structure splicing of biological safety cabinets, the bonding process can avoid other problems caused by welding or riveting. However, the bonding process has high requirements on the quality of glue and the use environment, and the durability and anti-aging properties of glue will affect the long-term stability of splicing.

Process selection and optimization

In the actual sheet metal processing of biological safety cabinets, it is often necessary to comprehensively select the appropriate splicing process based on specific design requirements, cost budget, production efficiency and other factors. Sometimes, multiple processes are used in combination to achieve the best effect. For example, for the key sealing parts of the biological safety cabinet, welding is first used to ensure the structural strength, and then bonding is used for secondary sealing to further improve the sealing.

The splicing process of sheet metal processing of biological safety cabinets is directly related to the performance and safety of biological safety cabinets. By continuously exploring and optimizing the splicing process, we can provide more reliable technical support for the production of biological safety cabinets and meet the strict requirements for biosafety protection in various fields.