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How to grind high-quality carbon steel plate
Carbon steel sheets are widely used in many professional machinery equipment and large structural parts in the manufacturing industry, for example, in the engineering, energy and mining machinery industries, many products use steel sheets with a thickness of 6-20 mm. Some of these sheets are flat sheets without hollows, while most are sheets with 30% porosity. Their specifications and dimensions vary by product and use. After these carbon steel sheets are cut by plasma or oxygen, different degrees of flash, slag and burrs will be left on the cut surface. These must be removed, otherwise it will affect the aesthetics and usability of the finished product.
Carbon steel plate
Some enterprises perform artificial surface treatment on carbon steel sheets after thermal cutting, mainly using hand tools such as hand grinding wheels, scrapers, and steel hammers for knocking and sweeping. The disadvantages of this sanding method are:
(1) Quality cannot be guaranteed. Manual grinding cannot guarantee the uniformity and thoroughness of grinding, and will affect subsequent bending, spraying and other processes, and affect the overall appearance and internal quality of the product.
(2) The efficiency of manual grinding is difficult to master and count. It all depends on the work status and proficiency of the employee and cannot be guaranteed.
(3) Environmental protection issues. The knocking brings dust and slag splashing, which seriously pollutes the air quality and environment inside and outside the work area.
(4) There are certain security risks. In addition, the flying slag produced by grinding the workpiece and the handling of heavy objects are the main hidden dangers of personal injury accidents.
In recent years, some companies have also tried to solve the slag and burr problems by mechanical means. In the current market, there are roughly two solutions.
Carbon steel plate
The first is the traditional dry single-sided grinding scheme. The workpiece is continuously ground by setting up multiple grinding heads on the top of the table. The grinding media used basically belong to the cloth-based abrasive belt and its modified grinding head. In this way, not only the cost of consumables is high, but also the time and frequency of replacing consumables will cause a huge waste of time. Also, generally speaking, the workpiece needs to be machined on both sides. With this single-sided grinding scheme, after single-sided grinding, the workpiece needs to be turned over to complete the final processing requirements, which greatly reduces the processing efficiency.
The second is dry double-sided processing technology. Production line processing, the workpiece is clamped and ground by several sets of opposite clamping rollers. The advantages of this processing method can be described as:
(1) The processing effect is good. No residual slag and burrs. The surface treatment effect of a single piece is the same as that of the whole batch of workpieces, which is unmatched by manual processing.
(2) High processing efficiency. Using advanced double-sided simultaneous processing technology, the efficiency is increased by at least 60% compared with traditional processing methods.
(3) Save a lot of human resources. For continuous processing on the production line, only two employees are needed for loading and unloading.
(4) Energy saving and environmental protection. The production line is equipped with a high-efficiency dust removal system. The grinding dust is strictly controlled in the body, completely collected by the dust collector, and can be directly discharged after filtering. However, the high price of such a production line is undoubtedly a considerable expense for the majority of small and medium-sized enterprises.