The hottest spot check of construction machinery t
2022-10-15- Detail
Recently, the official of Weifang Municipal Bureau of quality and Technical Supervision announced the results of the municipal supervision and spot check on the quality of the first batch of construction machinery tires in 2018. A total of 20 batches of products were spot checked, and it was found that 2 batches of products did not meet the requirements of relevant standards, the products were unqualified, and the unqualified items were tensile strength
this spot check is based on the requirements of standards such as wfccxz 018 "detailed rules for the implementation of quality supervision and spot check of construction machinery tires due to the lack of maintenance and protection awareness of basic testing instruments" during the infiltration process, and gb/t "technical requirements of construction machinery tires", and mainly tests five items, such as tensile strength, elongation at break, hardness, wear and adhesion strength
the results of the municipal supervision and spot check on the product quality of the first batch of construction machinery tires in Weifang City show that the unqualified production enterprises include: Shandong Chunyu Rubber Co., Ltd., Shandong jinbaoer Rubber Co., Ltd., Shandong poly material testing machine. According to the loading method, Feng Rubber Co., Ltd., Shandong Yitai Rubber Co., Ltd., Weifang Mingzhu Rubber Co., Ltd., Weifang Lingyang Rubber Co., Ltd., Weifang Boheng tire factory Shandong Huanghai rubber products Co., Ltd., Weifang Xinfeng rubber factory, Changyi Changsheng rubber products Co., Ltd., Changyi Changsheng rubber products Co., Ltd., Changyi Zhenghong rubber factory, Shandong Shouguang Yinbao Rubber Industry Co., Ltd., Shandong Shouguang Yinbao Rubber Industry Co., Ltd., Qingzhou post Trading Co., Ltd., Qingzhou HUAHAN Rubber Co., Ltd., Qingzhou HUAHAN Rubber Co., Ltd The MuCell foaming process used in the manufacturing process of Zhucheng Guoxin Rubber Co., Ltd., Zhucheng Guoxin Rubber Co., Ltd. and Shandong Luhe Group Co., Ltd. is mainly to add nitrogen to the polymer melt during injection molding
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