What is the DPM code?

DPM code (Direct Part Mark): It is a special mark making technology, not a bar code standard, generally called "direct part mark". This technology can realize marking directly on the surface of parts, without the need for paper, labels and other marking carriers. The majority of DPM codes are QR codes, and DataMatrix 2D barcodes are very commonly used barcodes for DPM codes.

DPM code "Direct Part Marking": is a fixed component of a product that is identifiable throughout its life cycle and is therefore traceable and does not interfere with the continued processing of the product. When parts are in adverse or harsh environmental conditions and other identification methods are not available, DPM codes can achieve permanent parts tracking, thereby reducing downtime, overhead and costs, while improving business efficiency.

The main advantage of the DPM code is that it can directly form solid graphics and text on the surface of the part, even with the same life span of the part, and become a fixed part of the product itself, which will never be lost or altered.

Matters needing attention in the implementation of DPM technology

At present, in the life cycle of processing, warehousing and logistics, market circulation, user use and product scrapping of products in China's modern manufacturing industry, the guarantee of product quality needs to be improved in all aspects, and it is necessary to adopt information technology to track and trace. The use of DPM technology can realize the tracking and tracing of the whole product life cycle.

When a manufacturing enterprise truly implements DPM technology and applies it in the production of the enterprise, the following points need to be considered:

1. Marking method, position and size, content and amount of information marked

2. Marks for direct human reading

3. The impact of the logo on the product surface

4. When to identify during the manufacturing process

5. Integrate the identification system into the production process

6. When to read the mark

7. What kind of reading equipment to choose

8. Reading conditions required for mark reading

9. Generation, integration of reading equipment and application systems, etc.

Only by fully understanding these problems can we use DPM technology reasonably and effectively to contribute to the construction of enterprise informationization.

Shenzhen Xingtong IoT XTIOT focuses on automation and image recognition applications, providing a complete set of DPM reading and recognition product technology solutions. All-round rapid identification for laser engraving, mechanical stippling and inkjet printing, which can be well applied in the traceability management of product parts. Widely used in manufacturing, logistics, food supervision, drug supervision, aerospace and other quality traceability and product tracking management links.

Generation of DPM code

The generation of DPM codes is called marking. Marking is a special machine that directly prints, casts or etch symbols on parts, and uses a process that meets the requirements of manufacturers, suppliers or laws and regulations to directly mark permanent marks on items or parts. sex symbol. There are mainly four methods: laser etching, machine impact, inkjet printing, and chemical etching.

Laser etching: The advantages of laser etching are: high quality of the logo, very high resolution of the logo, non-contact, permanent

Machine impact: relatively low initial cost, portable, permanent

Inkjet printing: very high speed, low initial cost, non-contact

Chemical etching: low initial cost, does not change the surface of the object, regardless of size