First, the cutting method blue, directly cut out the flange of the inner diameter and the thickness of the disk, and then the anchor bolt hole and water line processing. The flange thus produced is called the cutting method blue, and the maximum diameter of the flange is limited to the width of the medium plate.

Third, the volume production method blue, the process of cutting the strips with medium and thick plates and then making them into a circle is called extrusion molding, and is mostly used for the production of some large flanges. After the extrusion molding is successful, the electric welding is performed, and then the flattening is performed, and then the process of the water line and the anchor bolt hole is processed.

Second, the basic process of free forging: When freely forging, the shape of the steel casting is gradually forged by some basic deformation process. The basic process of free forging is upsetting, lengthening, punching, bending and breaking. 1 Rough is the operation process of quenching the original billet in the radial direction to reduce its height and increase the section. This process is often used to forge drive gear blanks and other disk-shaped steel castings. The ups and downs are divided into two types: all upsetting and partial forging. 2 Pulling length: Pulling length is a forging process that increases the length of the billet and reduces the cross section. It is usually used to produce shaft type blanks, such as lathe spindles and crankshafts. 3 punching machine: the forging process of punching the buried hole or not burying the hole on the blank with a punch. 4 Bending: A forging process that bends the billet into a certain angle or shape. 5 Distortion: A forging process that rotates a portion of the blank relative to another portion at an angle. 6 cutting: the forging process of cutting the blank or removing the material.

4. Die forging, die forging is called solid model forging, and the heated blank is placed in a forging die fixed on the die forging equipment to form a shape. 1 The basic process of die forging The die forging process: cutting, heating, pre-forging, final forging, punching, pouring, aging, shot blasting. Commonly used processes are upsetting, lengthening, sheet metal bending, punching, and forming. 2 Common die forging equipment Common die forging equipment includes die forging hammer, hot die forging press, flat forging machine and friction press. Popularly speaking, forged flanges are of better quality, generally produced by die forging, with fine crystal structure and high compressive strength, of course, the price is also more expensive. Both forged flanges and forged flanges are common methods of manufacturing flanges. See the compressive strength requirements of the components to be used. If the requirements are not high, you can also use the milling method.
Carbon steel flanges are produced and produced in different ways and processes in actual production and R&D. According to the process and principle, they have important value and effect on different aspects, adding certain elements to the actual production. The characteristics and value of carbon steel flanges, showing good use characteristics and value. Carbon steel mainly refers to the steel whose physical properties are in the carbon content of the steel, and generally does not add a large amount of aluminum alloy elements, sometimes referred to as ordinary carbon steel or alloy steel. Carbon steel is also called alloy steel, and refers to iron-carbon aluminum alloy containing less than 2% carbon content WC. In addition to carbon content, carbon steel generally has a small amount of silicon, manganese, sulfur, and phosphorus. The process safety protection of carbon steel flange in actual production and production, the matters and methods to be paid attention to during production, firstly welding a polygonal ring shell with irregular section or double-sided closed fan type with two sides After the shell is filled with pressure material, the gas pressure is applied. Under the external pressure, the section gradually changes from an irregular pattern to a circle, and finally becomes an annular ring shell. According to the need, an annular ring shell can be made of different carbon steel flanges, which can present important features in actual use. The process is suitable for manufacturing any specifications of the punching elbow and the nominal diameter ratio of the punching elbow exceeding 1.5. Large curved pipes are the ideal method for manufacturing large carbon steel galvanized pipe fittings.

Nowadays, carbon steel flanges have been used more and more. Have we ever thought about the methods used in the use of carbon steel flanges?

1 expansion method: one is to put vulcanized rubber on the outside of the tube, the upper side is shrunk with a punch to make the water pipe convex shape; the other method is that the hydraulic machine is inflated and formed, the liquid is filled in the south of the water pipe, and the liquid is pressed against the liquid. The water pipes are drummed into the desired design.

2 Forging method: The forging machine is used to give the water beam end or a department to the electric butterfly valve to eliminate the diameter. The common type forging machine has a twist type, a link type and a roller type.

3Rolling method: The outer peripheral core of the tube is pressed by the roller on the outer periphery of the check valve for round edge machining.

4 rolling method: the same as usual without the core rod, moderate to the side edge of the thick-walled tube.