The real development of investment casting in China is only a few decades. In the past few decades, China's development has been very rapid, and its proportion in the world is very high. For some workpieces with complex structures and not very high precision requirements, if it is difficult to process with CNC or the processing cost is high, such workpieces are especially suitable for investment casting. Even if some parts require precision assembly, we can meet the requirements through local precision CNC machining, thereby reducing costs. Especially for stainless steel castings, it is used in many places. Because of its strong corrosion resistance, high strength and toughness, stainless steel can be used in some harsh environments. For the processing of stainless steel parts, it is nothing more than precision CNC machining, forging processing, stamping processing, casting processing or powder metallurgy processing, etc., and investment casting is a relatively low-cost, high-precision processing method.
SCZY is a professional manufacturer of metal products. Many stainless steel castings we produce are used in marine projects, navigation, medical equipment and other industries. We not only provide metal investment casting processing, but also provide supporting follow-up secondary CNC machining and Surface treatment machining. We can ensure product accuracy requirements and appearance quality requirements.
Stainless Steel Castings,Stainless Steel Casting Parts,Stainless Steel Investment Casting Parts,Stainless Steel Precision Casting, Stainless Steel Investment Casting Shenzhen SCZY Technology Co.,Ltd , https://www.szcasting.com
Strive to improve the process to ensure the quality of motor repair. In accordance with the overhaul process requirements, in order to prevent the insulation of the main pole coil from aging, and to ensure the integration of the iron core and the coil, all the main pole stator wires are removed, and the coil insulation is aged and re-insulated to the ground, and the corrected inner diameter is checked. After the pole coil is heated, it is solidified with an accommodating felt to achieve integration. At the same time, the stator's overall secondary vacuum pressure immersion paint and stator spray surface lacquer were realized. The rotating shaft of the shaft is 1.10, which ensures that the contact surface reaches 80 or more, which prevents the uneven force of the pinion meshing, and the vibration and noise are too large to make the bearing easy to burn.
Brush holders are now all converted to silicone rubber insulated cables, brush holders and all kinds of insulation materials are replaced with new ones. The motor lead wires are also all changed to soft connecting wires, and at the same time, special attention is paid to the fact that the tins of the nose are full, thereby preventing the wires from being overheated due to insufficient contact area of ​​the conductors and being easily broken. In order to further improve the motor integrity rate, carefully check the double bearing bush oil tank and various parts. By using the process of detecting the bearing shaft hole, the non-deformable ductile iron processing is used to detect whether the oil tank body is out of tolerance, and the original precision is repaired by welding, planing, grinding, boring and the like. According to statistics, due to the motor over-cylinder oil tank over-the-counter needs to be repaired, the total number of 20. Because the motor holds the shaft screw hole needs to be repaired, accounting for 30 of the total.
To ensure the safe operation of the locomotive and to do the after-sales service of the motor for many years, we have always emphasized that all for the user, all to ensure the safe operation of the locomotive. Conscientiously implement the various work arrangements of the Locomotive Department, and according to the needs of the users of each locomotive section, we must complete the repair tasks on time and in good quality, and establish the files of the users. Frequent visits are made to track the factory motor. Record all kinds of problems reflected in the operation of the locomotive in time, and study the feedback processing. Take corrective action for the cause. Thereby, continuous improvement of quality is effectively achieved. The motor that has been repaired by our factory not only conforms to the current technical standards, but also adapts to different households to meet potential use requirements.
