Dam bag for spiral steel mesh rubber dam and preparation process thereof

Abstract

The invention relates to a dam bag for a spiral steel mesh rubber dam and a preparation process thereof, and belongs to the technical field of dam bag structures for spiral steel mesh rubber dams. The dam bag comprises a spiral steel mesh, wherein upper coverage glue and lower coverage glue are arranged on the upper and lower surfaces of the spiral steel mesh; a joint is reserved at the periphery of the spiral steel mesh; the spiral steel mesh, the upper coverage glue and the lower coverage glue are combined into an integrated structure by a vulcanizing technology; adjacent dam cloths are connected to form the integral dam bag by the joint; the upper coverage glue and the lower coverage glue cover on upper and lower surfaces of the joint; and the adjacent dam cloths are integrated by the vulcanizing technology. The preparation process comprises the following steps of: 1) coating a film; 2) calendering the spiral steel mesh; 3) calendering the coverage glue; 4) forming; 5) vulcanizing; 6) splicing; and 7) vulcanizing. The dam bag of the rubber dam is resistant to puncture abrasion, long in service life, high in integral strength and safety and low in cost.

Description

Technical field [0001] The invention relates to a spiral steel mesh rubber dam bag and a preparation process thereof, belonging to the technical field of spiral steel mesh rubber dam bag structure. Background technique [0002] The rubber dam is to anchor the dam bag to the bottom plate in a closed shape according to the size required by the design, and inflate it into a bag-type water retaining dam through the filling and discharging system. [0003] At present, the skeleton materials for making rubber dam bags are made of synthetic fiber materials, which are calculated according to the design strength requirements. Generally, 2-3 layers of synthetic fiber cloth are used as the skeleton layer. [0004] The main problems of using synthetic fiber cloth as the dam bag skeleton layer are: [0005] 1. It is easy to pierce and be worn through. If there is a sharp floating object on the river, it is easy to pierce or wear through the dam bag, which will cause the dam bag to tear at the exte...

AI Technical Summary

Problems solved by technology

[0005] 1. It is easy to pierce and wear through. If there are sharp floating objects on the river, it is easy to pierce or wear through the dam bag, which will cause the dam bag to tear at the damaged part, resulting in dam break and dam collapse;

[0006] 2. The force between the multi-layer skeleton layers of the dam bag cannot reach an absolute balance, and a certain layer of the skeleton layer will be subjected to a greater force. When a layer of the skeleton layer with a greater force reaches the limit of the unit strength, it will break first , the overall safety strength of the dam bag is low;

[0007] 3. Dams with higher dam heights need to use synthetic fiber cloth with higher strength, and the cost of the skeleton layer is higher, accounting for more than 2 / 3 of the cost of the dam bag

Moreover, it is difficult to effectively reduce the production cost, which affects the application and promotion of rubber dams;

[0008] 4. The multi-layer skeleton layer of the dam bag will be delaminated during use, which reduces the quality and safety of the dam bag;

[0009] 5. Limited by the strength of synthetic fiber cloth, the height of the rubber dam is limited;

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