For example, when identifying counterfeit products of Dongfeng Motor Company Diesel Engine Co., Ltd. and Shanghai Yichu General Machinery Co., Ltd., the identification of production serial numbers is an effective way. Appearance identification The parts produced by the regular factory are all processed and manufactured strictly according to the reasonable processing technology. The equipment level and technology level of these production plants are relatively high. Counterfeit and refurbished parts are mainly compared with the regular production factories in the production process. Big difference. Therefore, these two types of accessories are quite different in terms of internal quality and appearance. Most of the intrinsic qualities of auto parts need to be inspected with destructive tests. However, if we understand the normal processes of a regular production factory, we can identify some inferior parts from the aspect of appearance roughness, dimensional accuracy, and surface treatment quality of parts. Due to limited space, here are only examples. Oil seal. Silicone rubber and fluororubber are commonly used sealing rubbers with excellent properties and are odorless. The oil seal produced by a regular production factory has a fine appearance and good gloss, and there are type and factory names on the oil seal, and the font is clear. Identification method inferior oil seal uses ordinary rubber or poor quality raw materials, its heat resistance, oil resistance and cold resistance is poor, the surface color is dark, there is a kind of "smelly smell of rubber", the hand is flicked and the block is removed, the font on the oil seal is skewed or there is no name , Signs. Three filters. Regular production plants mostly use imported or high-quality domestic filter paper. The paper is delicate, uniform, elastic, and has good filter effect. The adhesive has good elasticity, and the adhesive is firm. The filter paper is evenly folded, and the number of folds is more. The center tube uses hot-tin plated steel roll bars. Shock absorbers. The drum damper of the regular production plant and the exterior paint layer of the oil storage cylinder are thick and adhere firmly. The connecting rod has a high surface finish, and the thread is complete and clean. The tensile resistance is greater than the compression resistance. Identification method Some workshops that refurbished the shock absorbers disassembled the old shock absorbers for recycling. After simple cleaning, they were loaded with poor quality oil seals, and the shock absorber housing was polished and putty on it for simple painting. The connecting rod threads have wear marks. Sometimes the sludge coating shell welding process can be seen to be thin and the paint layer is thin. It can be peeled off with a hard object, and can be traced through the paint layer. PuTTY can obviously feel the tensile and compressive resistance is small, non-uniform, and there is a sense of emptiness when pulling and pressing this type of shock absorber. Due to the impact of production facilities, soil heating, etc., metal parts with unqualified heat treatment in counterfeit metal fittings account for a large proportion, mainly manifested as severe unqualified parts such as hardness, metal strength, and metallographic structure. The requirements are far from one another. The metallographic structure has a wide variety of defects, which are very impressive. It shows that there are many problems in the heat treatment process such as heating time, heating temperature, holding time, heating method and cooling medium. Non-destructive testing of automotive metal parts or destructive physical and chemical inspections when necessary is very necessary, which can greatly reduce the chance of misuse of counterfeit parts. The surface hardness test is a widely used, economical, and quick test without destroying the parts. The key parts of the car, such as the engine crankshaft, camshaft, valve, tappet, axle, leaf spring, gear, general shaft parts and automotive fasteners, etc., can be first used to test the intrinsic quality of the hardness test, if necessary. Further analysis. YIEN CNC flat bed lathes are a type of computer numerical control (CNC) machine that is used for machining cylindrical parts. These lathes have a flat bed design, which means that the workpiece is mounted horizontally on the lathe bed. Cnc Flat Bed Lathes,Flat Bed Cnc Lathes,Cnc Slant Bed Lathe,Flat Bed Cnc Lathe Ningbo Yien Machinery Co., Ltd , https://www.yiencnc.com
The CNC Flat Bed Lathe is equipped with a computer control system that allows for precise and automated machining operations. The operator can input the desired dimensions and specifications into the control system, and the machine will automatically perform the necessary cutting, drilling, and turning operations to produce the desired part.
Some of the key features of CNC flat bed lathes include:
1. Precision machining: CNC flat bed lathes are known for their high precision and accuracy. The computer control system ensures that the machining operations are performed with tight tolerances, resulting in high-quality finished parts.
2. Versatility: These lathes are capable of machining a wide range of materials, including metals, plastics, and composites. They can handle both small and large workpieces, making them suitable for a variety of applications.
3. Automation: The CNC control system allows for automated machining operations, reducing the need for manual intervention. This increases productivity and efficiency, as well as ensures consistent and repeatable results.
4. Multi-axis capabilities: Many CNC flat bed lathes are equipped with multiple axes, such as X, Y, and Z axes, as well as live tooling capabilities. This allows for complex machining operations, such as milling, drilling, and tapping, to be performed in a single setup.
5. Easy programming: CNC flat bed lathes typically use G-code programming language, which is widely used in the industry. This makes it easy for operators to program the machine and create complex part geometries.
Overall, CNC flat bed lathes are highly versatile and efficient machines that are widely used in various industries, such as automotive, aerospace, and manufacturing. They offer precise and automated machining capabilities, allowing for the production of high-quality parts with minimal manual intervention.
Inspecting the Quality of Auto Parts Category
Although the counterfeit production serial number of the identification method is on the surface similar to that of a regular manufacturer, if you carefully understand the serial number characteristics of each manufacturer, you will find that the counterfeit production serial number is in the font, font size, word number, position, etc. There are many differences.