Quality supervision and random inspection of 8 types of artificial board plywood MDF products in March 2023.
Analysis of Random Inspection Results for Wood-based Panels
30 batches of products produced by 30 enterprises in the production and distribution fields of Linyi, Shandong, Xuzhou, Jiangsu, Shuyang, Suqian, Fusui, Liuzhou, Guangxi, and Liaocheng, Shandong were randomly inspected, and 5 batches of non-conforming products were found, with a non-conforming detection rate of 16.67%. We focused on testing 16 items, including moisture content, water absorption thickness expansion rate, surface bonding (adhesive) strength, internal bonding (adhesive) strength, surface wear resistance, lateral static bending strength, bonding strength, immersion peeling, static bending strength, elastic modulus, surface cracking resistance, light fastness, surface dry heat resistance, surface cold and hot cycling resistance, surface resistance to cigarette burning, and formaldehyde release. Unqualified items include water absorption thickness expansion rate, internal bonding (adhesive) strength, lateral static bending strength, immersion peeling, surface resistance to cigarette burning, and formaldehyde release. According to the analysis of technical institutions, the main reasons for non conformity are that the production enterprise selected low-quality raw materials or the enterprise’s production process was not perfect.
