Abstract The quality of a product is the lifeline of an enterprise. It is related to the survival and development of an enterprise. 2010 is an important year for the development of China's machine tool industry. It is the closing year of the 11th Five-Year Plan, but the machine tool industry has repeatedly experienced product quality problems, which has sounded the alarm for us. should...
The quality of the product is the lifeline of the enterprise, which is related to the survival and development of the enterprise. 2010 is an important year for the development of China's machine tool industry. It is the closing year of the 11th Five-Year Plan, but the machine tool industry has repeatedly experienced product quality problems, which has sounded the alarm for us. It should be noticed by machine tool companies, and it is hoped that it will be greatly improved in the 12th Five-Year Plan. Let us share the quality of machine tools.
CNC lathes do not meet the standard
According to the "Product Quality Law of the People's Republic of China" and the "Administrative Measures for State Supervision and Inspection of Product Quality", the General Administration of Quality Supervision, Inspection and Quarantine organized the third batch of national supervision and spot checks on product quality in 2010, and announced the national supervision and spot check on the quality of CNC lathe products. result. This time, a total of 21 CNC lathe products produced by 21 enterprises in Liaoning, Heilongjiang, Shanghai, Jiangsu, Zhejiang, Shandong and other six provinces and municipalities were sampled. According to the National Machine Tool Quality Supervision and Inspection Center, there are 2 kinds of products (CK6136 CNC lathe of Yancheng Nanhua Machine Tool Co., Ltd. and CK6130 CNC lathe of Yuhuan Huanyu Machine Tool Manufacturing Co., Ltd.) do not meet the requirements of relevant standards. The unqualified project involves protection coupling circuit. , electric shock protection, accuracy.
The pass rate of Guangdong forging machinery products was 84.0%.
In the inspection, a total of 152 batches of forging machinery products were produced by 147 companies in 7 cities including Guangzhou, Dongguan and Foshan, and 82 batches were inspected. The qualified rate of product sampling batches was 53.9%. From the inspection results, there are still many problems in the quality of forging machinery products. The unqualified items are mainly: electrical safety (65 batches), control system (51 batches), safety protection devices (28 batches). The related products of six companies including Dongtai Machinery Tools (Dongguan) Co., Ltd. were sampled and qualified, but 22 products were found to be unqualified.
National Supervision and Inspection Report on the Quality of Milling Machines and Drilling Machines in the First Quarter of 2010
This time, a total of 34 milling machines and drilling machine products produced by 34 enterprises in 11 provinces, autonomous regions and municipalities in Beijing, Liaoning, Jilin, Heilongjiang, Shanghai, Jiangsu, Zhejiang, Anhui, Jiangxi, Shandong and Guangxi were sampled.
This spot check is based on the requirements of the National Compulsory Standards and related product standards such as "General Technical Requirements for Safety of Metal Cutting Machine Tools" GB15760-2004 and "Mechanical Safety Mechanical Electrical Equipment Part 1: General Technical Conditions" GB5226.1-2002. Leakage, geometric accuracy, winding and entangling hazard of milling machines, drilling machines, limit devices, mechanical overload protection, anti-loose devices, interlocks, clamping devices, guards, starting, stopping, emergency stop, noise, splash 22 safety and important performance items such as operational reliability, power switch, protective earthing, insulation test, circuit overcurrent protection, motor overload protection, electric shock protection and control transformer were tested. The spot check found that there are 4 kinds of product protection grounding, power switch and other items inspection results do not meet the requirements of relevant standards.
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