With the development trend of today’s society, the use of French pipe fittings is becoming more and more common, and the two sealing surfaces of the flange are installed when the sealing rings are sealed
If you cannot control the strength of the bolt fastening, it is possible to cause damage to the seal, so you must constantly increase the fastening force of the bolt, so as to ensure that the seal will not be damaged.
In this case, what is the production and processing process of plate welding flange? Generally speaking, it can be divided into four types of processes, and then we will interpret it in detail.
Flat welding flange processing technology
The first type: Using scrap metal pins to practice embryo, the cost is low, in view of the fact that most furnace is a small workshop material can not be guaranteed, the second process is relatively simple.
The second category: steel plate cutting flange is generally a steel plate manufactured by the company, the material is more standardized, in general, the small eye is easier to produce and process, low cost, and the quality can be guaranteed.
The third type of large diameter flange is generally cut into a drum with steel plate, the material is not good, only the middle of the welding surface, although the reverse side can not see the welding joint, but it is still not recommended for high pressure pipelines.
The fourth type: the forged flange material is good and high density, the production and processing become more complicated, but the cost performance is high, many enterprises only ask the price, do not ask the material, can buy cost-effective products?
Flat welded flange is a kind of pipe fittings, not easy to change, sealing, common use, has the corresponding rigidity and ductibility provisions and effective reverse welding refining transition period, the welding joint distance from the joint surface is large, the joint surface will not be affected by the welding temperature change, the selection of more complicated hob style structure
Flat welded flange can be used for resistance or temperature fluctuations of the pipeline or high temperature, high pressure, low temperature pipelines, generally used for PN higher than 2.5MPa pipe and valve connection, can also be used for the transmission of more expensive, flammable pipelines
The above explanation is the four types of process details of flat welding flange processing, want to know more about the flange, elbow related knowledge, you can consult our customer service staff, we will have specialized personnel to answer your questions
