Zhengzhou Dongfang Ancai Refractory Co., Ltd
About Ancai
Inquiry
Hotline:+86-400-0369-593
Phone:+86-371－69938359
Inquiry: Wu manager
E-mail:zzacrc@163.com
Address: No.1 Dongfang Road, Chaohua Town, Xinmi City
Quality
Quality Certification/Quality Assurance
1. Establish a standardized, independent and efficient quality assurance system in accordance with the requirements of modern enterprises.
2. Each process of manufacturing, each process has the corresponding "standard document", "quality control document", the implementation of the whole process control.
3. Relying on analytical instruments and inspection equipment, the products are tested throughout the process, providing scientific and effective theoretical data for production, and providing users with high-level quality supervision services.
4. In September 2018, Dongfang Ancai refractory company passed the ISO9001 (of) quality management system certification and ISO14001 environmental management system certification, making the production process cleaner and more environmentally friendly.
Production process and quality control
| No. | Process | Control content | Frequency | Control mode | Executor | Relevant Standards | Control Department |
| 1 | Raw material | chemical and physical analysis | Each batch | The technical center shall conduct laboratory analysis on the incoming raw materials, and the raw materials that do not meet the acceptance standards of the enterprise must be returned. At the same time, during the use of raw materials, each package is sampled and retained, and the processing is done after the processing and acceptance of this batch of bricks, so that the raw materials can be traced back. | Raw material workshop staff, raw material technologist | Acceptance standards for raw and auxiliary materials of enterprises | Raw material workshop, quality inspection department |
| Appearance and impurity content of raw materials | Each batch | The appearance and impurity content of each batch of bricks entering the factory must be strictly inspected. If the batching workers find any abnormal raw materials, they must notify the quality inspection department and the production technology department to deal with the unqualified raw materials. | Raw material workshop staff, raw material technologist | Acceptance standards for raw and auxiliary materials of enterprises | Quality Inspection Department, Production Technology Department | ||
| 2 | clinker crushing | chemical composition Particle size |
2 times/shift | Chemical composition control should be strictly in accordance with the requirements of enterprise standards, and chemical analysis should be carried out for each class of crushed clinker. The particle size of clinker should be strictly controlled, and the over-standard material must be re-crushed in Hubei. | Production Technician, Quality Inspector | Enterprise Control Standard | Quality Inspection Department, Production Technology Department |
| 3 | Sand mold | Dimensional accuracy Plate quality |
Each set of models | The quality of the type plate shall conform to the internal control standard of the enterprise, and the size of the model shall be strictly in accordance with the drawings of the production schedule. | Sand mold technician, quality inspector | Enterprise Control Standard | Quality Inspection Department, Production Technology Department |
| 4 | electric furnace process | Electric furnace process operation procedures | 2 times/shift | The quality inspection department and the production technology department respectively assign special quality inspectors and process technicians to supervise the operation process of the electric furnace, and strictly punish those who violate the operation process of the electric furnace; | Production Technician, Quality Inspector | A. Electric furnace operation specification, B. National standard | Quality Inspection Department, Production Technology Department |
| Chemical composition test of burner | One burner is reserved for each furnace, and chemical analysis is carried out every day for each shift. If problems are found, the production technology department must be notified immediately. | Testing personnel | |||||
| 5 | Semi-finished products | Brick weight Dimensions Appearance defect crack Bulk density chemical composition |
Each brick | Each brick must be strictly inspected, including the weight of the brick is consistent with the theoretical weight, the volume density is up to standard, the size is consistent with the drawing, and the non-processed surface should be regular. Cracks must conform to national standards, and must be rejected if they exceed the standards. In addition, considering the customer standards, they must be treated if they exceed the customer standards. The chemical composition should also be sampled once a day to ensure that the chemical composition of bricks is stable and controlled. | Inspector of semi-finished products, inspection monitor, | Contract execution standard | Quality Inspection Department |
| 6 | Processing | Appearance Dimensions |
Each brick | The quality inspector shall follow the inspection. If any problem brick is found, the processing shall be stopped immediately and the brick returning procedures shall be handled. The size must be consistent with the size of the production schedule, and the appearance must meet the acceptance standard. | Quality inspector | Contract implementation standard or national standard | Quality Inspection Department |
| 7 | Finished products | Brick weight Dimensions Appearance defect crack Bulk density chemical composition |
Each brick | The appearance and internal tabulation of each brick must meet the standards provided by the customer, and the inspector shall carefully inspect each brick and write the inspection report. The qualified brick must be clearly marked and transferred to the assembly platform. | Finished product inspector, inspection monitor, head of quality inspection department, head of quality inspection department | Contract implementation standard or national standard | Quality Inspection Department |
| 8 | Brick Assembly | Dimensions | Bricks for each part of each contract | The overall assembly dimensions must be consistent with the contract drawings and meet the customer's acceptance criteria | Quality inspector, engineering technician | Contract implementation standard or national standard | Quality Inspection Department, Production Technology Department |
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