What is part marking? The basics of part marking
Ⅰ Part marking Introduction
Part marking is a method of marking information on the surface of a part, which is used to identify the manufacturing information, specification parameters, quality level and other contents of the part. These marks can include words, symbols, numbers, etc., and are usually marked according to certain standards for easy identification and traceability.
Ⅱ Part marking technology
Common parts marking methods are as follows:
1.Laser marking
Marking is formed by burning the laser beam on the surface of the part, which is suitable for most metal and non-metal materials. This method has the advantages of high marking accuracy, lasting marking and little damage to the surface of the parts.
2.Chemical corrosion
The use of chemical agents to corrode the surface of the part to form a dented mark. Suitable for metal parts, especially steel products. This method is less costly, but the markup clarity and persistence are relatively poor.
3.Cast or moulded
In the part manufacturing process, the mark is directly formed on the part by casting or molding. This method is suitable for mass-produced parts. The mark and the part are formed in one, which has high firmness and durability.
4.Mechanical embossing
The character mold is pressed into the surface of the part by the embossing machine to form a mark, which is suitable for metal parts with high hardness. This marking method is simple to operate and firm to mark, but it may affect the surface smoothness of the parts.
5.Electric marker
The use of electric marker on the surface of parts to form marks, suitable for a variety of metal materials. This method is flexible and convenient, but the marking speed is slow, and the operator's skill is required.
6.Inkjet
By inkjet printer on the surface of the parts to form ink marks, suitable for mass production occasions. This method has high efficiency, but poor marking durability and is easily affected by environmental factors.
7.Thermal printing
The use of thermal transfer technology to transfer the character pattern to the surface of the part under heating conditions, suitable for non-metallic materials such as plastics. This method is clearly marked, but the heat resistance and wear resistance are poor.
The selection of part marking method needs to consider factors such as part material, marking content, production efficiency and cost.
Ⅲ Common markup content
1.Part number
A unique identifier, usually consisting of numbers, letters, or symbols. It can clearly specify a particular part to avoid confusion.
Part numbering systems may vary from company to company or industry, but generally follow certain rules and standards for easy management and inquiry.
2.Production date
The production time of the part is expressed in the form of year, month and day. This is important to determine the service life of the parts, inventory turnover, and quality assurance period.
Some parts may age or degrade over time, so the production date can help users judge the reliability of the part.
3.Batch number
Parts produced in the same batch have the same batch number. This helps to quickly determine the affected scope and take appropriate measures when quality problems occur.
The batch number can be associated with production records, quality inspection reports, etc., to facilitate quality traceability and analysis.
4.Supplier information
Identify the supplier's name, address, contact information, etc. This is important for procurement management, quality control, and communication and collaboration with suppliers. In the event of quality problems or need for after-sales service, you can contact the supplier to solve the problem in time.
5.Specification parameter
Including parts size, material, performance indicators and other details. These parameters are essential to ensure proper use and compatibility of parts. For example, the diameter, length, strength level and other specification parameters of the bolt must match the use requirements, otherwise it may lead to installation failure or safety risks.
6.Quality certification mark
Such as ISO certification, industry standard certification and other marks, indicating that parts meet specific quality standards and specifications. This can increase the user's trust in the quality of the part. The quality certification mark is usually issued by an independent third party body and goes through a rigorous audit and testing process.
Ⅳ Part marking advantage
1. Traceability
Quality control: By marking the serial number, batch number and other information of the part, the manufacturer can track the production history of each part, including the raw materials used, manufacturing process, inspection records, etc., to ensure product quality.
Recall management: If a defect is found in a batch of products, the faulty parts can be quickly located and recalled to reduce losses.
After-sales service: In the maintenance or replacement of parts, through the query of the marked information can quickly obtain the relevant information of the part, improve service efficiency.
2. Anti-counterfeiting function
Combat counterfeiting: Unique markings can help distinguish genuine products from counterfeits and protect your brand image.
Consumer Trust: Ensure that consumers are buying certified products and increase their confidence in the brand.
3. Ease of operation
Quick identification: Clear markings allow workers to quickly identify different types of parts on the assembly line, reducing the chance of errors.
Easy maintenance: During routine maintenance or troubleshooting, marking helps technicians accurately locate the parts that need attention.
4. Compliance with regulations
Compliance requirements: Many industries have strict regulations requiring the marking of specific parts, such as medical devices, aerospace parts, etc., to meet the needs of safety and liability division.
International standards: Following uniform marking standards can promote international trade and avoid import and export barriers caused by inconsistent marking.
5. Increase productivity
Automated production: In the automated assembly line, by scanning the marks on the parts can be automated processing, such as sorting, packaging, etc., greatly improving production efficiency.
Inventory management: For the warehouse, the marking of parts helps to achieve information management, easy to track the status of inventory, timely replenishment or adjustment of inventory.
6. Security
Accident prevention: Properly labeled parts prevent misuse or misassembly and reduce the risk of accidents caused by improper use.
Emergency response: In emergency situations, such as fire, earthquake and other natural disasters, can quickly determine the status of equipment through the marks on the parts, guide rescue work.
Ⅴ Part marking application
Automobile Manufacturing:
Engine number, parts serial number;
Production date and batch information of key components of airbags and brake systems;
Chassis number, VIN code (vehicle identification code).
Aerospace:
Identification marks of aircraft fuselage, engine and internal components;
Unique identifiers of key electronic equipment such as navigation equipment and communication systems;
Batch numbers, serial numbers and calibration data on various sensors and controllers.
Medical equipment:
Type specifications and manufacturer information of surgical instruments and implants;
Equipment maintenance records, times of use and other tracking information;
Barcodes or QR codes are used for rapid identification and traceability.
Electronic products:
Brand, model and serial number of core components such as motherboard and processor;
Position coding and function description of components on the circuit board;
Parameter values of miniaturized electronic components such as resistors and capacitors.
Military equipment:
Identification, production date, serial number of the weapon system and its accessories;
The batch number and expiration date on the ammunition packing box;
Barcode or QR code on equipment maintenance manual, user guide.
Precision Instruments:
Serial number and date of manufacture of microscope, telescope and other optical instruments;
Operating guidelines and precautions for analytical instruments and laboratory equipment;
Technical parameters of high precision sensor and actuator.
Daily Necessities:
Brand logos, models and safety warnings of household appliances;
Production date and manufacturer information of kitchen utensils and personal care tools;
Safety certification mark for children's toys, applicable age range.
Food Packaging:
Batch number and shelf life on the packaging materials;
Contents composition list and nutrient composition analysis;
Traceability code, anti-counterfeiting label.
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