How to distinguish the authenticity of imported mechanical parts

Home>Bearing knowledge>How to distinguish the authenticity of imported mechanical parts
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131";

How to distinguish the authenticity of imported mechanical parts

Source: China Bearing Network Time: 2014-01-17
/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
High-quality accessories are the basis for ensuring the normal operation of mechanical equipment. Because of the needs and interests of the repair machinery; the mall presents a total of imported construction machinery and auto parts; but the quality is not good. The current imported machinery parts on the mall have " Imported and localized. The imported parts include the pure parts of the whole machine factory; the high-quality components of the professional supporting factory; the parts of the non-complete machine factory (such as Japan, Korea, Singapore, etc.); Parts of Hong Kong and Taiwan and other regions. "Localized" parts; there are parts and components of imported machinery produced by the orbital factory; usually with the symbol of the factory production. There are also some imported machinery parts that are not copied by the right track factory or even private workshops; There are imported pure parts or professional factory packaging; fake filling imported pure parts; it is a fake and inferior product. There are also non-Japanese or American machine parts imported from South Korea, Hong Kong, Taiwan and other Asian countries and regions; with sophisticated Pure parts packaging; these are always called fakes; although they can be used; but far less than the quality requirements of the original pure parts; It is a copy of the production produced by the non-regular manufacturers; from the raw materials, processes, functions and other aspects can not reach the quality requirements of pure parts and professional factory products; affect the normal operation and repair of mechanical vehicles; therefore, for the operation and application units; It is necessary to distinguish imported mechanical parts.
Imported mechanical parts can be distinguished from many aspects; the first is to distinguish between packaging, quality of connotation, product price and purchase route.
1. Identifying from the outer packaging according to the packaging; it is an important procedure for checking the authenticity of imported accessories. The packaging of pure parts and accessories of foreign professional supporting factories is exquisite; color, markings and styles have certain rules; it is usually difficult The copy is the same. The copy of the package is relatively rough; it is simpler to distinguish. But some copyers rely on modern leading printing technology; the parts are packaged to be very expressive; if not carefully identified; it is also difficult to distinguish. Imported mechanical parts usually have Outer packaging and inner packaging; outsourcing is equipped with packaging boxes and packaging boxes. The inner packaging is usually wrapped paper with packaging and plastic bags or paper bags. The imported packaging parts (boxes) are affixed with common manufacturers, printed clearly, and paper. Excellent quality; printed with GENUINE PARTS9 (pure parts) symbol; and marked with part number, title, quantity and manufacturer and country. The printed label is not printed accurately; the color is not light or heavy; it is difficult to share with pure packaging The color of the part number and the manufacturer's symbol printed by the computer is not light or heavy; careful identification; can distinguish the authenticity. From the packing box Box); the imported box (box) has a tight texture; the picture is clear; the box is printed with the manufacturer and the pure part symbol; for example, Komatsu has KOMATSU and pure parts printed on the whole box. (GENUINE PARTS); Mitsubishi Corporation has printed (MITSUBISHI) and pure parts (GENUINE PARTS) on the entire package; and the copy of the package, although printed with these marks; but the color is not correct; the picture is not clear. Some foreign companies to avoid Imitation; anti-counterfeiting symbols on the packaging label; can be paid attention to when distinguishing. The inner packaging is usually wrapped paper, paper bag or plastic bag; the package is printed with pure parts and company symbols. The markings, colors and drawings of the wrapping paper Copying is hard to be the same.
Differentiating imported parts packaging should also pay attention to; engineering machinery and automobile manufacturing plants have individual professional supporting parts suppliers. When importing factory parts; the box has both the whole machine factory symbol; also the symbol of the supporting factory. Such as Mitsubishi Heavy Industries; its piston ring is matched by RIKEN CORPORATION; the outer box is printed with the RIK symbol. But the single piston ring box inside is the flower box package of Mitsubishi symbol; its symbol is MITSUBISHI. The manual is marked with Mitsubishi Motors Industrial Co., Ltd.; it also has a research and development company; therefore, it is not a mistake to think that the table is not a common part.
Second, from the quality of the product to distinguish the difference between the quality of the imported mechanical parts; is the most important part of identifying the authenticity of the pure parts. Driven by the interests; there are pure parts imported by the dealers after the machine is assembled; Packing is not purely sold to the mall. It is necessary to check the quality of the product; to recognize the authenticity of the imported parts. The difference in product quality is the first to investigate, view and experiment.
(1) View from the appearance. See if the processing of the product appearance can be precise; whether the color can be normal. If there is a sample with pure parts; it can be checked for comparison; usually the appearance of the copy is rough; the color of the product is not correct.
(2) View the logo on the product. Branded symbols, part numbers and specific codes are printed on the purely imported parts. Some products are also engraved with the manufacturer and the producing country. For example, the piston of the Japanese Mitsubishi diesel engine; There are part number, group number symbol A, B, C and UP↑ direction symbols, the inside of the piston skirt is cast organic and Mitsubishi logo; and there is the IZUMI logo of the supporting factory; the casting is clear; simple identification. The copy is not leak casting or The handwriting is ambiguous; it is difficult to reach the role of authenticity.
(3) The scale of the product measured by special operations; see if it can meet the demand. Some manufacturers also provide customers with measures to prevent impersonation.
.4) Perform functional experiments on the product. Some parts cannot be distinguished from the authenticity by appearance inspection; special instruments are required for testing. For example, injectors and plugs should be tested on the test bench for functional tests; Volume, fuel injection point of view, etc.
.5) Physical and chemical functional experiments on the product. This condition is usually when the product quality is questioned or used in the application; it is the method used to seek compensation from the manufacturer.
Third, the difference in the price of the product of the same accessories; pure parts, professional parts, domestic parts and copies are not the same. The price of pure parts is the highest; professional factory second; domestic parts, copy prices are the lowest. Usually The price of pure parts can exceed one or two times the copy; some or even more, foreign professional supporting parts are slightly lower than the pure parts of the whole machine factory. The regular batch of imported parts fulfills the negotiated price with foreign merchants; The accessories are subject to the annual common catalog price of foreign investors. Sometimes foreign companies also have preferential prices for the disposal of accessories. The quotes for these accessories (yen or US dollars) are calculated according to the import exchange rate at the time; plus tariffs, transportation, etc. Then convert it into the unit price of the parts; this is the customary price known to the professional. The price is lower than the custom price; it can be judged as non-pure or professional parts. It is important to pay attention to the tax reduction in the import link. The increase in the price of the central dealer will also make the price violate the customary price.
4. According to the way of purchasing goods, there are many ways to purchase goods; however, there are no two aspects; one is to import directly from abroad; the other is to purchase from dealers; the parts imported directly from foreign machine factories and parts supporting factories The quality is guaranteed. If it is purchased from the dealer or re-exported from Hong Kong and Macao, the accessories should be differentiated according to the above methods. In addition, all mechanical parts imported directly from abroad; there are order contracts, bills of lading, waybills, loading Box list and invoice. If the accessory is purchased from the import company; it can be presented with the above procedures; otherwise; it can be judged as non-imported genuine.
In the process of distinguishing imported mechanical parts; the methods are various; do not use a single method; adopt different methods according to different types of accessories; and use them in general; be able to identify the authenticity of imported parts.
Recommend to friends comments close window

Bearing related knowledge
Common terms and definitions of KOYO bearings and shafts for detecting bearings (13)
The use of "IKO linear bearing smoothing equipment" should pay attention to the excavator bearing device and disassembly method in the industry to select the NSK bearing specification


This article links to http://
Please indicate the bearing network http://

Previous:The effect of smooth grease stability on rolling bearings Next: Reasons for motor bearing overheating and disposal methods

Car Elevator

Car Elevator,Auto Elevator,Automobile Elevator,Car Lift Elevator

Homefriend&FUJI Elevator Co.,Ltd , https://www.jfujilift.com