Follow the demonstration to understand the basic bonding method of the membrane

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Source:上海示一膜结构有限公司 Time:2021-12-13 Click:

We also know the basic bonding method of the membrane structure, but the specific ones may not be comprehensive for a while. Don't worry, follow Shiyi to the factory site today to see what the basic bonding of the membrane structure is.

The first type, sewing and bonding:

This is the strongest bonding method, but the sewing thread is easily damaged. Sewing bonding is usually applied to PVC-coated polyester filament fabric at the same time as heat bonding, in order to obtain greater strength. If used outdoors, the sewing bonding should be protected with a PVC covering. Sewing bonding is not suitable for PTFE-coated glass fiber fabrics, and all other brittle fabric-based materials.

The second type, heat bonding:

Thermal welding is to heat the bonding seam and melt the coating on the fabric, then apply pressure and cool the bonding seam. You can blow hot air to the film material, or let the film material contact the heating object, or use high-frequency electromagnetic waves to make the film material get the corresponding heat. Heat and bonding are used for PVC coated polyester filament fabric and PTFE coated glass fiber fabric. For PTFE-coated glass fiber fabrics, since PTFE cannot be melted by itself, a different material is required for the inner layer.

The third type, mechanical bonding:

Although sewing and heat sealing have been widely used in membrane processing workshops, mechanical bonding is sometimes used. There are generally three forms of mechanical bonding:

1. Embed the rope on the edge of the two diaphragms, and clamp the splint at the overlapping position of the two diaphragms. This splint requires discontinuity and can be moved.

2. Embed the rope on the edge of the two diaphragms, and embed the two embedded ropes in the aluminum splint with two openings (like dumbbells lying horizontally). The aluminum plywood is also discontinuous. The waterproof performance of this bonding method is worse than the first one.

3. The simplest method is to arrange many diaphragms in a row and fix them. This is the easiest and fastest way to install, but it cannot be waterproof.

The original text is compiled from Shanghai Shows A Membrane Structure Co., Ltd.

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