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What are the reasons for flange rusting and failure of rust prevention? What should be noted for flange rust prevention?

The grease and dirt on the surface and gaps of the flange connection are difficult to remove, and the quality of rust removal is hard to meet the requirements for anti-rust coating. Therefore, when applying anti-rust oil to the flange connections, it is easy to result in poor anti-rust effectiveness.

2024-06-19

Comparison of Stainless Steel and Carbon Steel Flanges

Comparison of Stainless Steel and Carbon Steel Flanges

When using welding rods, they should be kept dry. Titanium-calcium type rods should be dried at 150°C for 1 hour, while low-hydrogen type rods should be dried at 200-250°C for 1 hour (repeated drying should be avoided, as it can cause the coating to crack and peel off). This prevents the welding rod coating from sticking to oil and other contaminants, which could increase the carbon content in the weld seam and affect the quality of the welded parts. During the welding of flange pipe fittings, repeated heating can lead to the separation of carbides, reducing corrosion resistance and mechanical properties. The hardenability of chromium flange pipe fittings after welding is significant, making them prone to cracking. If using the same type of chromium stainless steel welding rod (GG207) for welding.

2024-06-19

What are the common materials and properties of shaft-type forgings?

What are the common materials and properties of shaft-type forgings?

Gear shaft manufacturers remind: The material of gear shaft forgings must first meet the requirements of working conditions. The requirements of working conditions are the factors that should be considered first when selecting materials for gear forgings. Alloy steel is commonly used for making gear forgings that operate under high speed, heavy load, and impact loads, such as gears used in aircraft, which must meet the requirements of low weight, high power transmission, and high reliability. Therefore, high-performance alloy steel must be selected. If the gear size needs to be as small as possible, high-strength alloy steel with surface hardening treatment should be used. In mining machinery, gear transmissions generally have high power, low working speed, and high dust content in the surrounding environment, so materials like cast steel or cast iron are often chosen. For household and office machinery, the power is very low, but it requires smooth transmission, low noise or no noise, and the ability to operate normally under low lubrication or no lubrication conditions. Therefore, engineering plastics are often selected as gear materials.

2024-06-19

What qualifications are required for a flange manufacturer?

What qualifications are required for a flange manufacturer?

Flanges are important connecting components in the industrial field, widely used for connecting various pipelines, containers, and other equipment. Therefore, as a flange manufacturer, it is essential to possess a series of qualifications to ensure product quality and compliance in the production process.

2024-06-19

How to distinguish between flanges and forgings?

How to distinguish between flanges and forgings?

Flanges and forgings are two common components in mechanical engineering, and they differ in function, shape, and application areas. Here are the main distinguishing points between flanges and forgings:

2024-06-19

How to choose the material for stainless steel flanges?

How to choose the material for stainless steel flanges?

The choice of stainless steel flange material is crucial for ensuring the normal operation of the piping system. The correct material selection not only guarantees the safety and stability of the system but also extends the service life of the flange.

2024-06-19

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