China Zhongqi Bridge Box Co., Ltd. focuses on improving process control capabilities, improving the quality management system, and actively carrying out quality improvement projects in its “second ventureâ€. Currently, some projects have switched to the field and achieved remarkable results.
Based on the statistics of after-sales faults of the axle assembly and the determination of 14 quality improvement projects, the company established 20 quality improvement projects through the work of benchmarking according to the work arrangement of China National Heavy Duty Truck Group's “Second Ventureâ€; Four quality improvement plans have been established based on the quality of the monthly sales feedback of each sales department. Up to now, China Heavy-Air Bridge Case Company has organized and implemented 38 quality improvement projects involving seven major series of AC16 rear axle and AC26 Zhongqiao, a total of 71 products.
In the implementation process of each quality improvement project, special teams are set up. According to the statistics of the number of after-sales faults, failure mode analysis, failure mileage range, vehicle models, and regional characteristics, the special team identified improvement measures to tackle specific issues, and at the same time announced the monthly quality improvement meeting hosted by the general manager. Implementation progress.
There have been a number of switching operations, and significant improvements have been achieved. Among them, the AC16 bridge cross-shaft failure rate decreased by more than 50% year-on-year; the rear hub, hollow shaft, casting axle housing, Steyr wheel assembly, wheel flange The failure rate of the oil seal leakage dropped by more than 30% year-on-year; the failure rate of the HC16 differential assembly and brake drum decreased by more than 20% year-on-year.
China National Heavy Duty Truck and Bridge Box Co., Ltd. took the task of improving product quality as a top priority. Based on the implementation of the full-scale quality responsibility system, the company focused on the quality of supplier management and supporting products, and strived to achieve product quality in both steps and double upgrades.
In order to effectively guarantee the quality of product supporting products, Bridge Box has established a supplier-level management system to provide strategic monitoring and management of strategic suppliers. At the same time, in response to the post-sales key quality issue of the axle assembly, Bridge Box signed a "Quality Improvement Responsibility Letter" with relevant suppliers to specify specific requirements and assessment measures.
In particular, through the implementation of the “Requirements on the Quality Control of ancillary productsâ€, a series of procedures such as quality requirements for product delivery, product cleanliness requirements, on-line product scans, product benchmarking, quality improvement, quality penalties and other measures have been adopted. The implementation of quality responsibility.
If the supporting products strictly comply with the requirements of product drawings and technical standards, cancel concessions and technical deviations; the cleanliness of ancillary products as an important indicator of the bridge box company's incoming inspection, and must take strict control and other measures for bridge assembly cleaning Degree of compliance to create conditions; supporting product packaging and station equipment as part of the product quality, each supplier of product packaging and station equipment must comply with bridge box company station equipment standardization requirements, minimize secondary loading and unloading The two-dimensional code of the accessory product is regarded as a key feature of the product to be controlled, and any product that does not meet the requirements of the two-dimensional code shall be processed in accordance with the return. Products that are put on the production site and cannot be scanned are considered waste products.
In the early period of MAN product development, Bridge Box Company attached great importance to the simultaneous development of external resources, guided and guided suppliers to do a good job of planning and development of MAN products at the same time, and ensured that product development progress and quality levels were in line with project requirements.
First, the specificity of the identified 65 kinds of products was passed on to the suppliers, and the suppliers were required to carefully digest and absorb drawings, and re-plan on the basis of the original ones, and the quality functions should be included in the planning.
Secondly, the organization organized a special review of the APQP planning of more than 10 suppliers of key products, and put forward rectification requirements for risk points to help suppliers improve their planning and quality control.
Thirdly, a preparation meeting for release of MAN bridge accessory products was convened, requiring suppliers to “five specialties†in the manufacturing process of MAN bridge accessory products, and conscientiously study and understand the relevant standards of the group companies regarding supplier access and product release. Requirements, in-depth self-inspection and benchmarking work to identify gaps, refinement measures, improve and perfect, to ensure that the quality of MAN bridge supporting products to MAN quality standards.
Fourth, in order to ensure the quality of outsourced products, while returning non-conforming outsourced products, recoveries should be made based on 30% of the total value of nonconforming products.
The implementation of a series of measures is creating a bigger and better strategic development space for China Heavy Truck Bridge Box. When the company's expert team visited the bridge box company to inspect and communicate the entire process of production, assembly, and quality control of new products, the company's work was fully affirmed and the product was approved.
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