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The use of stainless steel flange should pay attention to what aspects

The use of stainless steel flange should pay attention to what aspects

Stainless steel flanges are flanges that extend steel pipes, pipe fittings, etc. into the flanges and are connected to equipment or pipelines through fillet welds. The inner hole on one side of the flange is provided with a welding boss, and the welding boss is provided with an inner hole. The inner hole communicates with the inner hole in the center of the flange, and there is elasticity between the flange and the welding boss. The two top surfaces of the elastic ring are respectively combined with the flange and the welding boss. There are many screw holes on the flange. The screw holes are symmetrically distributed around the center of the flange. The stainless steel flange is made of stainless steel, followed by a polyethylene plastic layer, a rubber layer and a PVC layer. Here we take a look at the use of stainless steel flange precautions. 1. In order to prevent corrosion between eyes caused by heating of stainless steel flanges, the welding current should not be too large, about 20% less than carbon steel electrode, the arc should not be too long, the cooling speed is between the number of layers, and the narrow bead effect is better.

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06

German standard flange: What is a flange?

German standard flange: What is a flange?

German standard flange: What is a flange? For those engaged in mechanical or engineering installation, flanges should be very familiar. It is a disc shaped component, usually used in pairs. So, what is a flange in German standard?

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2023

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06

German standard flange: What is the production process for flanges?

German standard flange: What is the production process for flanges?

German standard flange: What is the production process for flanges? As a connecting and sealing component, flanges can leak during the production process if there are quality issues, causing economic losses, environmental damage, and even safety accidents. Therefore, the welding and production of flanges are very important. So, what is the production process of flanges in German standard flanges? German standard flange: What is the production process for flanges?

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2023

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06

German standard flange: How many flange connection methods are there?

German standard flange: How many flange connection methods are there?

German standard flange: How many flange connection methods are there? At present, many people do not know the German standard flange, and many people do not know what it is. In fact, flanges are very common in pipelines. So, what are the flange connection methods for German standard flanges?

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2023

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06

How to anneal butt welded flanges

How to anneal butt welded flanges

The pressure of the protective gas for the welding flange is to avoid slight leakage of the welding flange. The protective gas in the furnace should be connected to a certain positive pressure, assuming it is a hydrogen protective gas, which is generally required to be above 20kBar. Annealing air, welding flanges generally use pure hydrogen gas as the annealing air, with a purity of over 99.99%. If the other part of the air is an inert gas, its purity can be lower, but it cannot contain too much oxygen and water vapor.

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2023

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06

Polishing method for dual phase steel flanges

Polishing method for dual phase steel flanges

1. There are four polishing methods for dual phase steel flanges: manual, mechanical, chemical, and electrochemical. Polishing can improve the corrosion resistance and decoration of flanges. The existing stainless steel electric polishing fluid still uses phosphoric acid and chromic anhydride. During the polishing and cleaning process, some chromium and phosphorus will be discharged into the wastewater, causing pollution to the environment.

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