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Flange basic use of common sense summary

To assemble a flat-welded flange, insert the pipe end into 2/3 of the inner diameter of the flange and spot weld the flange to the pipe. If it is a degree tube, spot weld from above, then check the position of the calibration flange from different directions using a 90° square and convert the sea... Read More

Flange connection quality requirements

Flange selection must meet the design requirements. When the design does not require, should be in accordance with the system of high working pressure, high working temperature, working medium, flange material grade and other factors comprehensive selection of appropriate form and specifications ... Read More

How to avoid oxidation problems of forging parts

Due to the forging parts is produced by forging process, so the forging can be divided into hot forging and cold forging, hot forging is above the metal recrystallization temperature forging, raise the temperature can improve the plasticity of metal, improve the immanent quality of workpiece, mak... Read More

Free forgings production forgings several points for attention

The tools and equipment used for free forging are simple, universal and low cost. Compared with casting blank, free forging eliminates shrinkage cavity, shrinkage porosity, porosity and other defects, so that the blank has higher mechanical properties. Forgings are simple in shape and flexible in... Read More

What are the forging equipment?

With the development of heavy industry, forging equipment is also diverse. Forging equipment refers to the mechanical equipment used for forming and separating in forging process. Forging equipment: 1. Forging hammer for forming 2. Mechanical press 3. Hydraulic press 4. Screw press and forging ma... Read More

Various forging processes of large diameter flange

There are many types of large diameter flange forging process, and the flange price difference is not small. Large diameter flange forging process is as follows: 1. This process is mainly used for large diameter flanges with the required interface in the center. Although soldered, the basic finis... Read More

Flange connection

Flange connection is to fix two pipes, pipe fittings or equipment respectively on a flange plate, and the flange pad is added between the two flanges, which is fastened together with bolts to complete the connection. Some pipe fittings and equipment have their own flanges, which are also flange c... Read More

What should be improved in the production process of forging parts

In today's use of forging parts, if the temperature control is bad or the careless will cause a series of defects in the process of production, this will reduce the quality of the forging parts, in order to eliminate forging pieces of this defect, must be the first to improve the metal parts, in ... Read More

Factors influencing flange use degree

In the case of common coarseness of flanges, different steel grades and different winding methods have different fatigue limit reduction degrees, such as the decrease degree of hot coil flanges is smaller than hot coil flanges. Practice shows that cadmium plating can greatly increase the fatigue ... Read More

Cooling and heating methods for stainless steel forgings

According to the different cooling speed, there are three cooling methods of stainless steel forgings: cooling in the air, cooling speed is faster; The cooling rate is slow in lime sand. In the furnace cooling, cooling speed is slowest. 1. Cooling in the air, stainless steel forgings after forgin... Read More

Inspection of appearance quality of forgings

Appearance quality inspection is generally a non-destructive inspection, usually with the naked eye or low magnifying glass inspection, if necessary, also use non-destructive inspection method. The inspection methods of internal quality of heavy forgings can be summarized as: macroscopic organiza... Read More

What should we pay attention to in terms of safety during forging processing?

During the forging process, in terms of safety, we should pay attention to: 1. forging production is carried out in the state of metal burning (for example, 1250~750℃ range of low carbon steel forging temperature), because of a lot of manual labor, accidentally burning may occur. 2. The heating f... Read More
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