1 The process is different
To a certain extent: foreign valve products are indeed slightly better than domestic ones.
The management philosophy of the foreign valve industry is also very different from ours. They pursue quality rather than quantity. After some relevant leaders and experts in our industry visited foreign countries, they found that the quality and management of foreign valve products are indeed incompetent. You can be picky, their processing equipment is first-class, their research and development level is first-class, and the products made with good materials and good equipment must also be first-class. This creates the excellent quality of foreign valve products.
It is understood that the main advantage of foreign valves is that their processing technology is different from ours, which forms the excellent quality of their own products. For example, in order to meet the radiation resistance requirements of nuclear-grade valve sealing materials, in terms of welding process, German KSB Company has widely used special solder powder for cobalt-free welding. The method is to sinter the solder powder and perform post-weld heat treatment. Valve products are designed according to the requirements of operating conditions. High temperature and high pressure gate valves mostly adopt parallel double gate structures.
Case analysis
The French Welland Valve Company completes pre-welding preheating, automatic welding, and post-welding treatment on the same equipment or the same processing production line, regardless of whether before or during welding , post-welding treatment, and temperature can all be automatically controlled to ensure welding quality, simplify welding processes, and improve welding efficiency. Especially for relatively complex welds (such as straight and curved connections for automatic welding), automatic welding is realized.
2 Complete control means
The first-class quality of foreign valves is closely related to their strengthening of quality management and equipment management. It is understood that the quality of foreign valve products can generally reach API, The requirements of JIS, BS and other standards, and the inherent quality and precision of the casting blanks are high. Their blanks can be processed by special machines without repairing. They have beautiful appearance, clear casting trademarks, good sealing performance, and various types of fillers and gaskets. There are many specifications to meet the requirements of different working conditions.
The performance parameters of the automatic control valve are stable, fully ensuring no leakage during use and accurate adjustment accuracy. The service life of general-purpose valves can reach 1 to 2 maintenance periods, or even longer.
Because foreign valve companies have complete and advanced quality control methods, complete hot and cold test equipment, and use advanced coordinate measuring instruments and strict inspections of various flaw detection equipment to ensure that the quality of every link is in place. , each part is clearly visible in any process, the records are very detailed, responsibilities are clear, and the surface quality is good, including forging quality, surface grinding, and weld quality, almost eliminating bumps and scratches, thus ensuring the excellent performance of foreign valve products.
Interpretation of Examples
For example, France's Bernard Electric Device Company had sales of 300 million yuan in 2005, with exports accounting for 70% of sales. It has established a global sales network, and my country's metallurgical industry and oil and gas pipelines use a large number of the company's electrical products. In the field of nuclear power, their supply ranks second in the world.
It is said that my country's Qinshan Phase II, Daya Bay, and Tianwan Nuclear Power Plants also supply 80% of the nuclear assembly. Their management is very good. The company's parts processing records are circulated along with the parts, and the production sites Neat and tidy, the two assembly lines are working in an orderly manner. Their screw rod processing adopts the rolling method, which is highly efficient. The surface finish of the parts is high. The processed parts are cleaned and processed in a timely manner. The workstation equipment is properly used, such as putting a plastic bag on each shaft. It is very simple, but very practical. Collision and scratches between parts are avoided. The painting method of parts is similar to that in China, but because the blank itself is smooth and flat and the quality of the paint is excellent, the appearance and quality of the products after painting are quite good.
3 Advanced process
Almost all product parts are completed on CNC equipment, and the processing accuracy and processing efficiency are also very high. Employees can access part processing drawings and part processing procedures on the console of the CNC processing equipment. They only need to clamp the workpiece to the CNC equipment according to the processing technology requirements and start the processing program to automatically complete turning, drilling, milling, and boring. and other processing procedures. After the processing program of one piece of equipment is started, another piece of equipment can be clamped. At the same time, the processing status of other pieces of equipment can be monitored on the equipment operation screen until the entire part is processed and sent to the assembly workshop after passing the inspection.
After each part is processed, employees will swipe the part tracking card on a card reader near them to feed back the status and processing information of the part to the relevant departments so that the relevant departments can understand the processing progress. , Statistics of worker workload and quality tracking. It also has very advanced and complete testing equipment, which can carry out high-precision three-dimensional dimensional testing, as well as dynamic balancing tests and high and low temperature tests. Their warehouse management is very advanced and implements three-dimensional computer management. Warehouse personnel only need to input production instructions and quantities into the computer, and the system will automatically take out the required parts from the shelves, then classify and package them and send them to the assembly workshop. The quality of the products processed carefully according to the process procedures will definitely meet the standards.
Foreign valve products are highly clean and well-handled. Each process strictly follows standards, including civilized production in the workshop and environmental sanitation. Dust-proof, rust-proof, burrs and flash in all parts of the product parts are removed, polished, cleaned, and cleaned and dried before assembly, without leaving any traces. The employees are also dedicated, conscientious and meticulous.
Case Analysis
It is understood that the characteristics of the production process of the Italian New Billon Company are: after receiving the order, it is transformed by the design and development center, which provides the product design drawings and outsourcing details. , mechanical processing procedures and other technical documents are transmitted to relevant departments through the internal network, and the production department organizes production according to technical requirements and sales orders.
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