NEWS CENTER

1. Look at the logo

To carefully check the trademark, the above factory name, site, grade and security mark is true because of the short-term behavior of the imitation of the stomach counterfeiters, the production of security marks is not an easy thing, the need for a large amount of expenditure in addition to the production of goods, regular manufacturers in the surface of parts have hard printing and chemical imprint, Indicate the part number, model, factory date, generally using automatic printing, orderly letter, handwriting is clear, small factory and small workshop is generally unable to do.

2. Look at the packaging

Automobile parts have strong interchangeability and high precision. In order to be stored for a long time, without deterioration and corrosion, it is necessary to smear with low acid grease before the product leaves the factory. Regular manufacturers, the requirements of the packaging box is also very strict, the requirements of no acid substances, no chemical reaction, some of the use of hard transparent plastic vacuum packaging. Sophisticated packaging can improve the added value of products and value, boxes, boxes are mostly used in anti-counterfeiting marks, commonly used in the procurement of parts, such as laser, bar code, dark printing, these are very important.

3. Look at the documents

Be sure to check the product specification of auto parts, product specification is the manufacturer to further promote the product to the user, for the user to do this prompt, to help the user correctly use the product information. Through the product manual can enhance the user's sense of trust in the product. Generally speaking, each accessory should be accompanied by a product description (the manufacturer with the user notice on the right). If the transaction volume is quite large, it is necessary to query technical appraisal information and import parts to inquire customs import declaration information. State regulations, imported goods should be equipped with Chinese instructions, some counterfeit imported parts generally do not have Chinese instructions, and on the packaging of foreign languages, some grammar, even wrong words, a look will be able to distinguish the true and false.

4, identify metal machinery parts, you can see the surface treatment.

The so-called surface treatment, that is, electroplating process, paint process, welding process, high frequency heat treatment process. The surface treatment of auto parts is the last process of parts production. The last process of commodity, especially the surface treatment, involves a lot of modern science and technology. International and domestic large factories invest a large amount of capital in the use of advanced technology, especially in the latter process of more attention, investment capital at least millions of yuan, more than tens of millions of yuan. Some small factories and manual workshops that manufacture fake and shoddy products have a common characteristic, that is, they adopt low-investment predatory short-term business behavior, seldom invest technology and capital in the latter process of the product, and they do not have the ability to invest such capital.

Look at the surface treatment has the following aspects:

(1) Galvanized technology and electroplating process. The surface treatment of auto parts, galvanized process accounts for a larger proportion. General cast iron, forging casting, steel casting, hot and cold sheet stamping parts, etc., mostly use surface galvanized. The quality is not up to standard galvanized, surface consistency is very poor; Galvanized process pass, surface consistency is good, and consistency between batches does not change, there is continuous stability. A discerning man can distinguish the good from the bad at a glance. In other aspects of electroplating, such as black plating, yellow plating, etc., the rust removal and pickling process before plating in large factories is more strict, and the acid removal is more thorough. These processes depend on whether there is bottling phenomenon. Molybdenum plating, chromium plating, nickel plating can see its coating, plating amount and plating surface is uniform, in order to distinguish the advantages and disadvantages of authenticity.

(2) Paint process. Now generally use electric immersion paint, electrostatic spray paint, some also use vacuum means and high grade electrostatic paint room spray paint. The surface of parts produced by advanced technology is very different from that produced by old and backward technology. Visually, it can be seen that the former surface is delicate, glossy, bright color quality; And the latter is dark color, no light, the surface has bubbles and "dragging nose" phenomenon, with the hand stroking sand feeling, in contrast, true and false is very clear.

(3) Electric welding technology. In the auto parts, shock absorber, steel ring, front and rear Bridges, girders, body and other electric welding process. Automobile factory with a high degree of specialization, their welding technology mostly uses automatic welding, can be quantitative, fixed temperature, fixed speed, some also use low temperature welding method and other advanced technology products, the weld is neat, uniform thickness, surface without corrugations, good straightness, even if it is spot welding, welding spot, welding distance is very regular, even if no matter how good manual operation can not do.

High frequency heat treatment process. Auto parts after finishing the high frequency quenching treatment, so after quenching all kinds of colors remain unchanged on the product. Such as car universal joint, outside the ball cage after quenching, there are obvious black, cyan, yellow and white, the white surface is the friction surface, is also the highest hardness surface. Visually, all black and colorless, certainly not high-frequency quenching.

The factory should be equipped with a complete set of high-frequency quenching equipment, including hardness, metallographic analysis and testing instruments and instruments. It is very difficult and has a lot of investment capital. It should also have the conditions of power supply, transmission and transformation equipment, and the power supply is more than 30,000 volts. Small factories, manual workshops are not equipped with these equipment conditions. embellish

5, look at the surface of the non-use of scars

From the scar on the non-use surface of the automobile parts, it can also distinguish the products produced by the regular factory or the products produced by the informal factory.

Surface scars are caused by the collision between products in the intermediate process. Quality products are produced by advanced scientific management and advanced technology. The production of a part needs to go through dozens or even hundreds of processes, and each process needs to be equipped with technological equipment, including process transportation equipment and station equipment placed in the process. High-quality products are guaranteed by a high coefficient of process equipment, so the products of high-level factories are impossible to collide with each other in the process of intermediate process. By inference, the products that leave scars on the non-contact surface of products must be inferior products produced by small factories and small workshops.