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On January 18, 2017, Shanxi Province, Quality and Technical Supervision, the official website of hydraulic machinery product quality supervision and inspection results, the sampling involved in Shanxi Province, 35 enterprises produced 60 batches of products, inspection failed 1 batch, unqualified detection rate of 1.7%.
In this paper, the hydraulic pump in the hydraulic jack, hydraulic prop and hydraulic cylinder no-load stroke test, the minimum starting pressure test, sealing performance test and strength test and other four items were tested; hydraulic pump appearance quality, displacement test, Volumetric efficiency test, overload performance test, sealing performance test and other five items were tested; hydraulic valve appearance quality, pressure resistance, slide valve performance test, commutation performance test, pressure loss test, the amount of leakage measurement, sealing performance And other seven projects were tested; hydraulic hose assembly length variation test, pressure test, leakage test, blasting test, the minimum throughput, the appearance of quality and other six projects were tested.
DSG-01-2B3B-A240 “JINGYI” one-way hydraulic electromagnetic valve (2016.2.18) manufactured by Shanxi Jingyi Hydraulic Manufacturer Co., Ltd. was tested and tested. To the performance test, the internal leakage measurement project failed.
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