Product introduce:
In the machining process, the common methods of sheet cutting are manual cutting, semi-automatic cutting machine cutting and CNC cutting machine cutting. Manual cutting is flexible and convenient, but the quality of manual cutting is poor, the size error is large, the material waste is large, the subsequent processing workload is large, and the labor conditions are harsh and the production efficiency is low. Among the semi-automatic cutting machines, the profiling cutting machine has better quality of cutting workpieces. Because it uses a cutting die, it is not suitable for single piece, small batch and large workpiece cutting. Although other types of semi-automatic cutting machines reduce the labor intensity of workers, they have simple functions and are only suitable for cutting parts with relatively regular shapes. Compared with manual and semi-automatic cutting methods, CNC cutting can effectively improve the efficiency and quality of plate cutting, and reduce the labor intensity of operators. With the development of the modern machinery industry, the requirements for the work efficiency and product quality of plate cutting processing have also increased at the same time, so the market potential of CNC cutting machines is still very large, and the market prospects are relatively optimistic.
Working principle: CNC cutting machine, flame cutting machine, oxygen cutting machine, gas cutting machine, plasma cutting machine Wuxi Zhouxiang Complete Set of Welding Equipment Co., Ltd. , https://www.beamweldingmachine.com
These "substances of great concern" include 46 substances such as phthalates and arsenic pentaoxide. According to the new regulations of REACH, if goods exported to the European Union contain more than 0.1% of substances of very high concern, and the substances enter every year. The EU market totals more than one ton, and manufacturers or importers need to inform the European Chemicals Agency. Of the 46 substances, 38 have to be notified before June 1 this year, and 8 more must be notified before June 15.
In this way, it means that all downstream companies that use these substances of high concern must immediately “self-check†the products and find out if their contents exceed the standards, otherwise the products will be recalled and the whole industry will be affected.
Liu Hongbin, director of the REACH Service Center of the Jiangsu Entry-Exit Inspection and Quarantine Association, said that as the major export products of Jiangsu Province, garments and textiles, footwear, toys, plastic products and other industries must pay special attention to the apparel dyes, shoe adhesives, and plastic products. Chemicals are added internally, and companies must test their products as soon as possible.
In recent years, the EU has always been Jiangsu's largest trading partner and the largest export market. During the interview, the reporter found that many large export companies had some understanding of the new REACH regulations and adopted corresponding countermeasures. A staff member responsible for the export of toys and garments from Jiangsu Dongheng Group Import & Export Co., Ltd. said that they have been paying close attention to the latest developments of REACH regulations and carried out relevant training. “We export EU products within the scope of regulations. He told reporters that in recent years, international trade has experienced frequent technical barriers, and some companies have imported testing equipment from abroad and set up a testing center. They strictly check before production to avoid unnecessary losses.
In contrast, SMEs rarely take the initiative to conduct tests. “We mainly deal with processing exports. The profits were only a few thin points. The fabrics, accessories used, and even the buttons and zippers were all bought. If these were to be tested one by one, it would be worthwhile to export a batch of clothing. The fee is a few tens of thousands, and as many as several hundred thousand, a list of money earned is not enough to do the test." Relevant person in charge of a small garment foreign trade company in Nanjing said that they are considering giving up the EU market and developing some other countries customer of.
In response to this situation, Liu Hongbin’s tactics said that downstream companies should select standardized suppliers and require them to provide test reports on their chemical composition. Upstream and downstream companies can also form alliances within the industry to share test costs.
Explanation of Terms REACH Regulations REACH Regulations are EU regulations for the preventive management of all chemicals that enter the market, and were formally implemented on June 1, 2007. This regulation requires the preventive management of all chemicals that enter its market. Chemicals must be registered, evaluated and other procedures before they can be admitted. It is called the biggest technical barrier that China has encountered in international trade.
It is reported that at present, nearly 100 relevant enterprises in Jiangsu Province have entrusted the REACH Service Center of the Jiangsu Entry-Exit Inspection and Quarantine Association with pre-registration, and four companies have officially registered. For the chemical raw materials registered in the catalog, if the annual export volume reaches a certain scale, if the registration is not completed within the limited time, the related companies can no longer export even 1 gram of products to the EU. Therefore, the "destructive power" of this provision should not be underestimated. 
Usually, the CNC cutting system automatically processes the processed parts according to the pre-programmed processing program (the commonly used drawing software AUTOCAD). We put the machining process route of the part, process parameters, tool motion trajectory, displacement, cutting parameters (spindle revolutions, feed, back-feeding amount, etc.) and auxiliary functions (tool change, spindle forward rotation, reverse rotation, The cutting fluid is turned on and off, etc.), according to the instruction code and program format specified by the CNC cutting system, write a processing program list, and then record the content of the program list on the control medium (such as perforated paper tape, magnetic tape, disk, magnetic bubble, etc.). memory), and then input into the numerical control device of the numerical control machine tool, thereby directing the machine tool to process the parts.
This whole process from the analysis of the part drawing to the production of the control medium is called the compilation of the numerical control program. The difference between CNC cutting equipment and ordinary manual and semi-automatic cutting equipment in processing parts is that CNC cutting equipment automatically processes parts according to the program, while ordinary manual and semi-automatic cutting equipment needs to be operated by humans, we only need to change the control machine action. The program can achieve the purpose of machining different parts. Therefore, CNC cutting equipment is especially suitable for processing parts with small batches and complex shapes that require high precision!
Since the CNC cutting equipment needs to process parts according to the program, after the programmer has compiled the program, it is input into the CNC system to direct the machine tool work. Program input comes through the control medium. In this way, the CNC system is used to control the finished processing parts, and the graphics can be modified in time by the drawing staff, which can be used more freely, and the accuracy of the workpiece parts is also greatly improved compared with that of semi-automatic cutting equipment!
SMEs complain: The money earned is not enough for testing
Recently, the European Union issued the new regulations for the "Registration, Evaluation, Licensing and Restriction of Chemicals" (REACH), and any substances that have been included in the SVHC exceed the standard must be before June 1st and June 15th, 2011. , Informed to the European Chemicals Agency in batches that the products not notified will not enter the EU market.