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A flanges is a mechanical part used to connect a pipe

Edit: Jingjiang Jinlun Machine Manufacturing Co.,Ltd    Date: Aug 03, 2017

A Flanges is a mechanical part used to connect a pipe
 Flanges (Flanges), also known as Flanges Flanges or Flanges. The Flangess are the interconnected parts between the pipe and the pipe, for the connection between the pipe ends; also used in the equipment on the import and export of the Flanges, for the connection between the two devices, such as reducer Flanges. Flanges connection or Flanges joint, refers to the Flanges, gasket and bolts connected to each other as a combination of a group of sealed structure of the detachable connection. Pipeline Flanges refers to the pipe fittings in the pipeline with the Flanges, used in equipment refers to the equipment import and export Flanges. There are holes on the Flanges, the bolts make the two Flangess tight. The Flanges is sealed with a gasket. Flanges thread connection (thread connection) Flanges, welding Flanges and clip Flanges. Flangess are used in pairs, low-pressure pipes can use the wire Flanges, four kilograms above the pressure of the use of welding Flanges. Add a gasket between the two Flangess and fasten it with bolts. Different pressure Flanges thickness is different, they use different bolts. Pumps and valves, in connection with the pipeline, these equipment and equipment of the local, also made the corresponding Flanges shape, also known as the Flanges connection. The use of bolted connections at the same time in both surfaces is usually referred to as "Flangess", but this connection is only part of a device, such as a connection of a Flanges and a water pump, Blue parts ". Relatively small, such as valves, etc., can be called "Flanges parts". Reducer Flanges, for motor and reducer connection, and reducer and other equipment between the connection.
  Casting out of the Flanges, rough shape size, processing capacity is small, low cost, but there are casting defects (pores. Cracks. Inclusions); casting internal organization streamlined poor (if the cutting parts, streamlined)
Forging Flanges is generally less than the casting Flanges carbon is not easy to rust, forging streamlined, the organization is more compact, mechanical performance is better than casting Flanges;
Forging process improper also appear grain large or uneven, hardening crack phenomenon, forging costs higher than the casting Flanges.
Forging is able to withstand higher shear and tensile forces than castings.
The advantage of casting is that it can create a more complex shape, the cost is relatively low;
Forging the advantages of internal organization is uniform, there is no castings in the pores, inclusions and other harmful defects;
From the production process to distinguish between casting Flanges and forging Flanges different, such as centrifugal Flanges is a kind of casting Flanges.
Centrifugal Flanges is a precision casting method to produce Flanges, the kind of casting more common sand casting organization is much thinner, improve the quality of many, less prone to tissue loose, stomata, trachoma and other issues.
First of all, we need to understand how the production of centrifugal Flanges, centrifugal casting system to do flat welding Flanges technology and products, which is characterized by the following process steps from the processing:
① the selected raw materials into the IF furnace smelting furnace, the molten steel temperature reached 1600-1700 ℃;
② preheat the metal mold to 800-900 ℃ to maintain constant temperature;
(3) Start the centrifuge and inject the molten steel in step (1) into the preheated metal mold in step (2)
④ casting naturally cooled to 800-900 ℃ for 1-10 minutes;
⑤ water cooling to close to room temperature, stripping out casting.
We come to understand the forging Flanges production process:
Forging process is generally composed of the following processes, namely the selection of high quality billet cutting, heating, forming, forging after cooling. Forging process methods are free forging, forging and fetal membrane forging. Production, according to the size of the size of forging, the number of production batch selection of different forging method.
Free forging productivity is low, the processing margin is large, but the tool is simple, versatile, it is widely used for forging shape simple single piece, small batch production forging. Free forging equipment with air hammer, steam - air hammer and hydraulic press, respectively, suitable for small, medium and large forging production. Die forging high productivity, simple operation, easy to achieve mechanization and automation. Die forging size accuracy, mechanical processing margin is small, forging the fiber structure distribution is more reasonable, can further improve the service life of parts.
Free forging the basic process: free forging, the shape of the forging is through some basic deformation process will gradually forging the blank. The basic processes of free forging are upsetting, drawing, punching, bending and cutting.
1. Upsetting upsetting is the original blank along the axial forging, so that the height reduced, cross-section increased operation. This process is commonly used for forged gear blanks and other disc-shaped forgings. Upsetting is divided into all upsetting and partial forging rough.
2. Pulling and pulling is the length of the blank to increase the cross-section of the forging process, usually used to produce shaft parts rough, such as lathe spindle, connecting rod and so on.

Jingjiang Jinlun Machine Manufacturing Co.,Ltd