Roll Forming Machine Price in India

Roll Forming Machine Export to India with good price.

Below introducing how roll forming machine technology training.
Roll forming machine, as rule for thin material cold bending forming Process.

Basic knowledge course catalog 

1. Introduction to rolling process 

Rolling definition Rolling is defined as cold forming in material forming. Cold Roll Forming (Cold Roll Forming) is a new material-saving, energy-saving and efficient metal forming process and new technology. Cold bending is the continuous horizontal bending of coils, strips and other metal sheets through multiple forming rolls arranged in sequence to form profiles with specific sections. There is only bending deformation in the roll forming process. Except for the slight local thinning of the bending angle of the blank, the thickness of the deformed material remains unchanged during the forming process. This processing method is particularly suitable for the processing of high-precision products with a longitudinal shape and a large batch. 

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2. Advantages of the cold-formed forming process 

Introduction to the rolling process Roll-type continuous cold-formed forming process. When forming, the tail of the previous roll of strip and the head of the next roll of strip are aligned and butt welded to make the blank strip continuous Continuously enter the molding machine for molding. This molding process is efficient, productive and versatile. The main advantages of this forming process are: (1) The cost of the coil is low, and the cut loss is small, thus reducing the total cost of materials. (2) It can process profiles with complex shapes. (3) The distortion and opening of the profile head and tail are reduced. (4) Since the operation is almost continuous, the productivity is improved. 

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3. Cold-formed forming equipment structure 1. Brief introduction of rolling process The cold-formed forming machine is generally composed of multiple horizontal roll frames and straightening roll frames. Different auxiliary deformation rollers and vertical rollers are configured according to the requirements of profile forming. The horizontal roller is the transmission frame and undertakes the main task of deformation. Auxiliary rollers are passive, set up between two horizontal rollers or set up in groups. The main function is to deform the blind corners that cannot be compacted by the flat rollers and reduce the number of horizontal rollers. The vertical rolls are set in the same plane of the horizontal roll pass, and are used for the last few passes of edge forming. For the closed street surface of the bite, components such as core, tie rod, bite indentation and so on are also provided. The reduction mode of the rolling mill can be divided into spiral mechanical reduction and hydraulic reduction. The cost of mechanical pressing is low, and the operation of hydraulic pressing is convenient. The transmission method is cardan shaft type, and the upper and lower horizontal rollers can have a larger adjustment range to adapt to the production of various types of profiles. In order to facilitate the replacement of the rolls, the outer frame and the bottom plate are mostly hinged connection that can be turned. The transmission between roller groups mostly adopts chain transmission to ensure the synchronization of transmission. * 2. Process flow 1. Brief introduction of rolling process Uncoiling Slitting Flat plate Rewinding Feeding Forming rolling Straightening Welding Cutting off Grinding Bundling * 1. Forming blanks 2. Process points The selection of raw materials is the decisive factor for profile products. Material—The base material of thin-walled cold-formed steel can be selected according to the specific product strength requirements. For our products and rolling equipment, the material is Q235, and the yield strength should meet or be close to 235Mpa (SS400/DC01). Blank size-the profile blank size is the basis for determining the slitting blank, and it is also a key factor affecting product quality. Generally, the width of the blank can be calculated according to the graphic analysis method, and the complicated section should be accurately calculated by the computer program. The material width is usually determined by the length of the neutral layer of the section. It is generally believed that the neutral layer does not undergo bending or transverse stretching deformation. The calculated result is corrected by considering the thinning of the metal at the bend and the lateral stretching. The general profile, no matter how complicated its shape is, always consists of straight and circular units. To determine the required bandwidth of a given profile, divide it into straight and circular segments, and then sum the lengths of each segment along the neutral line. * 2. Process points The width of the blank corresponding to each bending section is determined by the size of the bending angle and the bending radius corresponding to the neutral line (called the nominal bending radius, namely: W=rmα W——bending section length, mm ; rm——nominal bending radius, mm; α——bending angle angle, rad. Nominal bending radius rm is: rm =r+kt where r——bending angle inner diameter, mm; k——coefficient (bending factor); t——belt thickness, mm. * 2. Feeding 2. Process points a. Before feeding, check whether the material is consistent with the specified material to avoid waste of raw materials and equipment wear due to incorrect materials; b. Check whether the material width Consistent with the specified material width; c. The coil material should be aligned with the axis of the unit, and the pressing device should be pressed; d. Before starting the machine, the rollers and linkage devices of the rolling machine unit must be inspected to confirm that there is no waste, debris, and then start the machine. , Idling for 1 minute, make sure that the unit is operating normally and feeding. 

4. Sawing and polishing. After the standby group is discharged, the material end should not be brought into normal The product can be used as a material for sawing experiments; b. Adjust the sawing position to determine the length tolerance range of the product; c. Perform the first article inspection requirements and check the product diagonal, flatness and other technical parameters; d. At the polishing station, attention must be paid to the polishing strength, and the surface of the product should not be damaged while removing the burrs.