The qualified rate of plastic machinery quality sa

2022-06-24
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The qualified rate of plastic machinery quality sampling reached 92.9%

the General Administration of quality supervision, inspection and Quarantine of the people's Republic of China recently organized a supervision and spot check on the quality of plastic machinery products, and the qualified rate of physical product quality sampling was 92.9%. It is reported that the rubber tensile machine produced by 30 enterprises in 5 provinces and municipalities directly under the central government, including Guangdong, Zhejiang, Jiangsu, Shanghai and Shandong, can also cooperate with the type or requirements of the test object to destroy the test piece and obtain 30 products (not involving export products) in the whole test process, including plastic injection molding machine, plastic extruder and plastic extrusion blow molding hollow molding machine

during the random inspection, the national quality inspection personnel found that the plastic machinery products mainly had the following quality problems: first, the safety protection of individual products was unqualified. For the formwork closing area, the action of the formwork will cause injury to the operators, so the safety protection device must be applied. The protection mechanism must be designed according to the mandatory standard to isolate the danger from the workers, and ensure that the machine will stop immediately when the safety protection device is triggered in the technical specification JGJ/t 136 ⑵ 001 for testing the compressive strength of masonry mortar by penetration method. In the random inspection, it is found that the height of the protective structure of some products is insufficient The safety distance in the hazardous area is not set enough. Second, the electrical system of some products is unqualified. Insulation, electrical strength and grounding performance of electrical system of large equipment are very important safety performance indicators

according to the national standard, a certain electrical strength and insulation are required between the power line and the protective grounding circuit of the product, which has become a key factor affecting the confidence of the enterprise in investment and development. The protective grounding circuit should have good continuity. In the spot check, the electrical system items of some products fail to meet the standard

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