Weld Neck Flanges RF

Weld Neck Flanges RF

Flanges play a vital role in industrial applications, and their production should not be overlooked. By following the production steps outlined above, manufacturers can deliver high-quality flanges that meet industry standards. Therefore, it is essential to prioritize the quality of the manufacturing process above all else. With proper execution, high-quality flanges can successfully support a safe and efficient fluid transportation system.

Tianjin Wanlei can provide the following types of flanges

Welding neck flanges, Slip on flanges, Blinds, Thread flanges, Lap joint flanges, Socket welding flanges.

Standard: ASME B16.5/ASME B16.47/EN1092-1/DIN2633/BS4504

Material: ASTM A105/ASTM A350/ASTM A182

The production process of weld neck flanges RF
The production of flanges involves several stages that all play a crucial role in delivering high-quality and durable flanges：

1. Selection of raw materials
The first step in the production process of flanges is the selection of the raw materials. The manufacturer must select materials that are strong, corrosion-resistant, and durable. Common materials used include carbon steel, stainless steel.

2. Cutting and forging
After selecting the appropriate raw materials, the next step is cutting the bars to the appropriate length. Once the bars are cut, they are heated to a high temperature of about 1250 degrees Celsius and then subjected to forging. The forging process involves shaping the bars into the required flange shape.

3. Machining
After the forging process, the flanges undergo machining, where the outer and inner diameters are formed, and the bolt holes are drilled. This stage aims to achieve a high degree of precision, ensuring the flanges conform to industry standards.

4. Surface treatment
The next stage in the production process is surface treatment. The purpose of surface treatment is to improve the corrosion resistance of the flange, protect it from rust, and enhance its appearance. The most common types of surface treatments include hot-dipping and spraying.

5. Quality control

Finally, before exporting the flanges, comprehensive quality controls are conducted. Visual inspections are conducted to ensure the flanges are free from surface defects or cracks. Additionally, the flanges undergo NDE to ensure that the flange can withstand the intended pressure.

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