Knowledge about blockade
1. Concept
Shi blockade is a naming of lead-sealed products within the industry of the Ministry of Railways, Shi: implementation, seal: seal, seal, lock: lock.
In fact, the most popular saying is: one-time lock. As long as this so-called blockade is used, it cannot be opened. It can only be destroyed by destroying it. Therefore, its application is also very extensive, such as customs, electricity and other places where it is prevented from being contacted by others for the second time. . There is a number on each blockade, so that people will not lose the package. In short, the role of Shi blockade is to prevent others from contacting a one-time lock.
2. Application areas
Products are widely used in railways, ports, aviation, post and telecommunications, electricity, petroleum, food, logistics, express, various types of containers, tankers and other cargo transportation industries. Sealing and locking are completed at one time, with special functions such as anti-counterfeiting, anti-theft, safety, and insurance.
3. Material
Depending on the purpose of use, customers will choose seals made of different materials. For example, considering the cost of use, they will choose products made of pure plastic. If they consider safety regardless of cost, they will choose steel wire seals or high security seals. . For example, the wire seal is usually made of zinc alloy or aluminum alloy to make the lock head, and then a wire is fixed. The high security seal uses A3 steel as the lock head and lock nail, but it is not a tension type, and is usually used for sealing of containers or truck containers. Another example is the electric power and water company, they will choose a special instrument seal that combines plastic and thin steel wire rope.
4. Color
Colors can be customized according to different customers for different purposes, and there is no fixed color.
5. Printing
One-time block printing: laser or stamping company name, logo, serial number, barcode, QR code (electricity seal, animal ear tag).
6. Materials
Lock body: Different types of products choose different materials to produce, commonly used materials are: zinc alloy, aluminum alloy, plastic, steel wire rope, copper wire.
Steel wire rope: galvanized or stainless steel wire rope, the best choice is the wire rope that can be loosened immediately after cutting.
7. Methods and steps:
(1)The logo and code of the blockade should be unique.
In the process of purchasing Shi blockade, many manufacturers are often greedy for small and cheap, and buy some products that they think are "high quality and low price". Although the price of Shi blockade is not high, it has a certain production cost. Buying these low-priced products will inevitably cause many quality problems. In the process of using the blockade, we must pay attention to the uniqueness of the blockade code, which is an important guarantee to ensure the safety of the goods. Each blockade should have a fixed code. Once the code is repeated or ambiguous, the safety of the goods will be threatened.
(2) The person who imposes the blockade should be specified, and there should be a coded record of the person who imposes the blockade.
Shi blockade has a wide range of applications. During its use, it is likely to pass through multiple ports or wharves. Therefore, it is particularly important to make corresponding records. The operation steps of applying the blockade are very simple, once it is applied, the corresponding product cannot be opened. It is precisely because of the important role and value of the blockade that there should be special personnel to seal the product during the use of the blockade. After the sealing, there should also be fixed personnel to record the code of the sealing.
(3) During the use of the blockade, no one can open the package except the special opening personnel.
Shi blockade has a good security function, but in some cases, Shi blockade has to be forced to open. In the process of customs transportation, the box must be inspected by customs personnel before it can pass the customs smoothly. However, after opening, the box should have another layer of customs seal applied. The purpose of the seal is to let the consignee know that his goods have passed the customs inspection, and it is not the random unpacking of illegal personnel.
Description of the use of security container bolt seal
