How to control the flatness and dimensional accuracy of steel plates during the production process of embedded steel plates?
Publish Time: 2024-12-12
In the production process of embedded steel plates, precise control of the flatness and dimensional accuracy of steel plates plays a key role in ensuring their installation quality and structural performance in construction projects.For the control of the flatness of steel plates, the first thing to do is to check the selection of raw materials. Select steel plate billets with stable quality and uniform internal structure to avoid subsequent processing deformation due to defects in the raw materials themselves. In the rolling process, accurately set various parameters of the rolling mill, including rolling pressure, rolling speed and rolling temperature. For example, reasonable rolling pressure can make the steel plate deform evenly and prevent local excessive pressure from causing wavy fluctuations. At the same time, the use of advanced rolling roller technology, such as high-precision crown control rollers, can effectively compensate for the thickness changes of the steel plate during rolling and reduce the flatness problems caused by uneven thickness.In subsequent processing steps, such as cutting and welding (if any), attention should also be paid to the impact on flatness. When cutting, high-precision cutting equipment, such as laser cutting machine or plasma cutting machine, is used, which can provide fine cutting surface, reduce cutting heat affected zone, and thus reduce deformation of steel plate caused by cutting. For welding process, optimize welding process parameters, adopt appropriate welding sequence and welding method, such as symmetrical welding or segmented back welding, to reduce welding stress concentration and avoid damage to steel plate flatness due to welding deformation. And after welding, leveling treatment is carried out in time, and mechanical leveling machine or flame leveling method can be used to eliminate welding residual stress and deformation.In terms of dimensional accuracy control, high-precision CNC cutting equipment is used from the beginning of steel plate cutting, and accurate cutting is carried out according to the design size. During the cutting process, the cutting path and speed are precisely controlled by the CNC system to ensure the accuracy of the cutting size, and the error can be controlled within a very small range. During the processing process, for key dimensions such as hole position and edge profile, precision measuring tools are used for real-time measurement and monitoring, such as three-coordinate measuring instrument, etc. Once the dimensional deviation is found, the processing technology or equipment parameters are adjusted in time. At the same time, a complete quality inspection system is established to conduct comprehensive dimensional inspection on each finished embedded steel plate, including length, width, thickness, diameter and position of various holes, etc. Only products that meet the dimensional accuracy requirements can enter the next process or be delivered for use. Only through the above multi-link and all-round control measures can the flatness and dimensional accuracy of embedded steel plates be effectively guaranteed to meet the increasingly high quality standards of construction projects.
