Main achievements in Quality Management
1. Our company has been involved in the hydraulic oil tank and hydraulic power unit business since 2013.Since the first welding robot was put into operation in January 2015,we have completely abandoned the traditional seam welding process, resulting in a significant improvement in welding quality.After the introduction of KUKA arc welding robots in 2016,welding speed was increased and welding quality was ensured.Thanks to new technologies,the welds have achieved optimal aesthetics.The number of welds for one oil tank is reduced from 9 to only 3.Under the coordination between the welding fixture and the positioner,all 3 welds can be completed in a single pass,minimizing the number of arc strikes and crater cracks.This advanced welding process has become our second largest competitive advantage.
2. Current quality control measures include four parts,namely,self-inspection, mutual inspection,two airtightness tests,and process inspection by dedicated quality inspectors. Mutual inspection and the airtightness tests are highlighted as follows. Mutual inspection means that work completed in the previous process is inspected in the subsequent process on the production line.If a quality issue in the previous process is missed and carried over to the subsequent process,it will be detected there, and operators of the previous process will be promptly notified for correction.For each case identified by the subsequent process,a reward equivalent to 2%of the product value is granted,whereas operators of the previous process are subject to a penalty of 4%of the product value.If the current process fails to inspect the previous process properly and the defect passes to the next process,where it is detected,the current process shall bear the same quality penalty as the previous process.In this case, should the current process neglect inspection of the previous process's work,it will forfeit the reward originally owed to the previous process and assume its quality penalty.This rule applies to all processes on the production line.
The two airtightness tests are: first,testing of all welded joints,and second, post-assembly testing of all components during the weld finishing process.
