Monthly Archives: August 2024

　　The production process of electronic semiconductor products has high requirements for water quality. The manufacture of semiconductor materials involves precise chemical reactions and physical processes. Impurities, ions, microorganisms, etc. in the water may cause pollution to the products and affect the performance, stability and reliability of the products. Therefore, water treatment equipment is needed to remove various impurities in the water to ensure the purity of production water.Even if there are obstacles to moving forward, evaporator manufacturer We should also persevere, forge ahead bravely, cut waves in the sea of the market, hang on to Yun Fan and strive for the first place. https://www.wteya.com/

　　For example, in the electronic semiconductor industry, WTEYA ultrapure water equipment effectively removes various impurities, ions and microorganisms in the water through a series of high-precision and high-tech treatment processes such as preliminary adsorption filtration, reverse osmosis purification and resin ion exchange, ensuring the production of ultrapure water with extremely high resistivity. This ultrapure water is widely used in key process links such as cleaning, etching, film making and doping in semiconductor manufacturing, and is a key factor in ensuring the performance and quality of semiconductor products.

　　Filter

　　What water treatment plant is used in the electronic semiconductor industry?

　　1. Multi-media/activated carbon filtration system:

　　Multi-media filters are usually used as the initial stage of water treatment. Through the combination of different media, they can effectively remove impurities such as suspended matter, colloids, and particles in the water, providing a relatively clean water source for subsequent treatment processes.

　　Activated carbon filters are mainly used to remove organic matter, odor, pigments and other impurities in water. Activated carbon has a strong adsorption capacity and can adsorb and remove these pollutants in the water, thereby further improving the purity of the water quality.

　　2. Ultrafiltration system:

　　First, in the cleaning process, the ultrafiltration membrane can effectively remove particles and ions in the water as a pretreatment process for high-quality ultrapure water systems. This ultrapure water is used to clean semiconductor devices and equipment to ensure the cleanliness of the product surface and avoid the impact of pollutants on product performance and reliability.

　　Secondly, ultrafiltration technology is also commonly used in the preparation of process liquids. In the semiconductor manufacturing process, various process liquids are required, such as acids, alkalis, organic solvents, etc. WTEYA ultrafiltration membranes can filter and purify these liquids, remove impurities and particles, and ensure that the purity and quality of the liquids meet production requirements.

　　In addition, ultrafiltration technology also plays an important role in the cooling water circulation of the equipment. Semiconductor manufacturing equipment generates a lot of heat during operation, and cooling water is required for heat dissipation. Ultrafiltration membranes can remove particles and ions in cooling water, prevent impurities from damaging the equipment, and ensure the normal operation of the equipment and the stability of the product.

　　3. Reverse osmosis membrane system:

　　Reverse osmosis membranes are mainly used in the process steps of ultrapure water preparation in the semiconductor industry. In the process of electronic semiconductor manufacturing, ultrapure water is widely used to clean key components such as silicon wafers and chips, which can effectively remove surface particles and organic matter and reduce product defect rates. Reverse osmosis membranes can provide stable, low-tension deionized water to meet the high requirements of the semiconductor industry for water quality.

　　In addition, reverse osmosis membrane technology can also provide high-quality cleaning water to ensure the reliability and stability of components. By utilizing the characteristics of reverse osmosis membranes, precise control of water quality can be achieved to meet the strict requirements for ultrapure water in the process of electronic semiconductor manufacturing.

　　Selecting the right terminal connection cable is crucial for ensuring the efficiency and safety of your electrical systems. Whether you are working on a complex industrial project or a simple home wiring job, the choice of cable can significantly impact the performance and reliability of your connections. In this guide, we will explore the key factors to consider when choosing terminal connection cables, the different types available, and practical tips to make an informed decision.In the long run, D-SUB connector The value will be higher and higher, and there will be a great leap in essence. https://www.xpbdz.com/

　　Understanding Terminal Connection Cables

　　Terminal connection cables are designed to connect electrical circuits and devices securely. They are used in various applications, including industrial machinery, automotive wiring, and household electrical systems. These cables are essential for transmitting power and signals with minimal loss and interference.

　　MINI DIN8P connection to XH2.5-5P terminal connection cable

　　Key Factors to Consider

　　Application Requirements

　　Voltage and Current Ratings: Ensure the cable can handle the voltage and current levels required by your application. Using a cable with insufficient ratings can lead to overheating and potential failure.

　　Environmental Conditions: Consider the environment where the cable will be installed. Factors such as temperature, humidity, and exposure to chemicals or UV radiation can affect the cable’s performance and lifespan.

　　Flexibility and Durability: Depending on your application, you may need a cable that is highly flexible or one that can withstand mechanical stress. Choose a cable with the appropriate flexibility and durability for your needs.

　　Cable Specifications

　　Conductor Material: The most common conductor materials are copper and aluminum. Copper offers excellent conductivity and flexibility, while aluminum is lighter and more cost-effective. Select the material that best suits your application requirements.

　　Insulation Type: The insulation protects the conductor from external factors and prevents short circuits. Common insulation materials include PVC, rubber, and silicone. Choose an insulation type that matches your environmental conditions and application needs.

　　Shielding: Shielded cables are used to reduce electromagnetic interference (EMI) and ensure signal integrity. If your application is sensitive to EMI, consider using shielded cables.

　　Standards and Certifications

　　Ensure that the terminal connection cable complies with relevant industry standards and certifications. This guarantees that the cable meets safety and performance requirements. Look for certifications such as UL, CE, and ISO.

　　MINI DIN8P connection to XH2.5-5P terminal connection cable

　　Types of Terminal Connection Cables

　　1.Single-Core Cables

　　Single-core cables consist of a single conductor covered with insulation. They are used in applications where flexibility is not a primary concern, such as fixed installations in buildings.

　　2.Multi-Core Cables

　　Multi-core cables contain multiple conductors within a single sheath. They are ideal for applications requiring multiple connections in a compact form, such as control panels and automotive wiring.

　　3.Coaxial Cables

　　Coaxial cables have a central conductor surrounded by insulation, a metallic shield, and an outer insulating layer. They are used for transmitting high-frequency signals with minimal interference, such as in television and internet connections.

　　4.Twisted Pair Cables

　　Twisted pair cables consist of pairs of conductors twisted together to reduce EMI. They are commonly used in telecommunications and networking applications.

　　Practical Tips for Choosing the Right Cable

　　Assess Your Needs: Start by identifying the specific requirements of your application, including electrical load, environmental conditions, and physical constraints.

　　Consult Technical Data: Refer to the technical specifications and datasheets provided by cable manufacturers. These documents offer detailed information about the cable’s performance characteristics and suitability for different applications.

　　Seek Expert Advice: If you are unsure about the best cable for your needs, consult with an electrical engineer or a knowledgeable supplier. They can provide valuable insights and recommendations based on their expertise.

　　Consider Future Needs: When choosing a cable, consider any potential future requirements. Selecting a cable with higher ratings or additional features can save you from having to upgrade later.

　　Conclusion

　　Choosing the right terminal connection cable is essential for the success of your electrical projects. By considering factors such as application requirements, cable specifications, and industry standards, you can make an informed decision that ensures optimal performance and safety. Whether you are working on a small DIY project or a large-scale industrial installation, selecting the appropriate terminal connection cable will help you achieve reliable and efficient electrical connections.

　　The split reader can connect multiple reader antennas at the same time, which is flexible in deployment and wide in reading distance, and has applications in many scenes. Let’s take a look at the advantages and disadvantages of high-frequency split reader.in fact rfid module supplier Our related products were once praised by users, which is the best self-affirmation of the products. https://www.vanchrfid.com/

　　Advantages of high frequency split reader

　　1, high flexibility

　　The read-write module and antenna of high-frequency split reader are separated from each other, and the antenna can be installed and used independently, allowing the position and angle of the antenna to be adjusted to flexibly adapt to different application environments and requirements. This design is especially suitable for high altitude, underground parking and other complex environments, ensuring that the reader can effectively read and write RFID tags.

　　2. Wide reading range

　　The split reader can easily expand the coverage of the reader and improve the reading and writing efficiency by increasing the number of antennas or adjusting the antenna layout to meet the ever-changing application requirements.

　　3, the maintenance cost is low

　　The read-write module of the high-frequency split reader is deployed and used separately from the antenna. Once the antenna fails, the equipment can be easily replaced, and the maintenance cost is relatively low.

　　Disadvantages of high frequency split reader

　　1, the installation is more complicated.

　　Split reader needs to design the installation position of antenna and reader according to the application scenario. If a reader is connected with multiple antennas at the same time, it needs to adjust the deployment and installation, and the installation steps are relatively complicated.

　　2, vulnerable to environmental interference

　　There is a certain distance between the reader and the antenna, and it will be more easily disturbed by external factors under harsh environmental conditions such as metal and moisture, which will affect the recognition effect.

　　ANDEAWELL UHF split reader RU5321M&T-S04 can be connected with four antennas to work at the same time, which is convenient for distributed installation and deployment of antennas. The reading distance can reach 0~5000mm (the farthest distance is related to the label size), and the protection level is IP67. It is suitable for all kinds of harsh environments in the industrial field; Built-in filter and isolation module has strong anti-interference ability, high receiving sensitivity, stable performance and strong reliability. It supports standard industrial communication protocol ModBus and is convenient for users to integrate into control systems such as PLC.

　　At present, high-frequency RFID split readers are widely used in warehousing logistics, book management, production line automation and other fields. Antennas and readers are installed at multiple entrances and exits or shelves of warehouses to realize the rapid entry and exit of goods and inventory checking, and improve the efficiency of warehousing management. The reader and antenna are installed on the intelligent bookshelf to realize the rapid positioning and inventory of books and improve the efficiency of book management; The reader and antenna are installed at the key nodes of the production line to realize the automatic monitoring and traceability of the production process.

　　From some points of view, wired PIR motion sensor It is the core driving force to better promote the rapid development of the surrounding markets. https://www.sunlit-tech.com

　　PIR sensor (Passive Infrared Sensor) is a passive infrared sensor. It is widely used in consumer products such as doorbells, cat eyes, induction switches, night lights, and security because of its low power consumption, low price, and simple use.

　　(1) PIR detection principle

　　PIR also has another alias, which is pyroelectric infrared sensor. Its detection principle is the pyroelectric effect, that is, the phenomenon that a substance will generate electric charge when the temperature changes. The normal human body temperature is 36-37 degrees, and the infrared radiation released is about 9-10um. The detection wavelength range of pir motion detector is generally in the range of 5-14um. That is, within the detection range of PIR, if there is an energy change of 5-14um wavelength, the PIR sensor will generate a current change, thereby giving a trigger signal. It should be noted here that PIR detects energy changes, not infrared radiation of a fixed wavelength. If an object with a fixed wavelength is not moving, PIR will not detect it.

　　(2) Advantages of PIR

　　Low power consumption, typical power consumption is about 10uA

　　Low price, ranging from one or two yuan to five or six yuan

　　Easy to use, the simplest one only needs to detect a pin level signal

　　(3) PIR classification

　　There are many types of PIR motion detector, which can be roughly divided into the following ways:

　　Enablement controllable: switchable PIR

　　Output signal type: digital PIR and analog PIR

　　Is the sensitivity adjustable: adjustable PIR and non-adjustable PIR

　　Sensitivity adjustment method: hardware adjustment and software programming adjustment PIR

　　(4) PIR selection

　　When selecting a PIR sensor, we generally need to consider the following basic requirements: voltage range, operating current, number of pins required, data output format, whether the sensitivity is adjustable, structural package size, and compatibility with the Fresnel lens. Another important consideration is cost. Without considering cost, it doesn¨t matter whether you choose a model or not. Just choose the best one. In actual product development, especially for consumer products, prices are very sensitive. Basically, all bosses want to use the cheapest device and debug it to achieve the best effect, especially for products with large shipments. If you don¨t have high requirements for product quality, it doesn¨t matter. If you have strict requirements for product quality and performance, you need to be very careful when selecting a model to avoid replacing the device when you find that it does not meet the requirements in the later stages of the project.

　　The main task of seawater desalination is to remove salt and other impurities from seawater to make it drinkable or industrial water. In this process, in addition to producing desalinated water, a large amount of concentrated brine is also generated. These concentrated brine contains high concentrations of salt and possible chemical treatment agents. If they are directly discharged into the ocean or underground, they may have a negative impact on the environment.In addition to domestic, evaporator It has also emerged in the international field and gradually gained the favor of more foreign friends. https://www.wteya.com/

　　Introduction to seawater desalination reverse osmosis water treatment system

　　The seawater desalination reverse osmosis water treatment system is a high-efficiency water treatment method specifically used to treat concentrated brine produced during seawater desalination. Through advanced reverse osmosis technology, the system can further recycle and utilize this part of water resources while reducing the impact on the environment.

　　Composition of seawater desalination reverse osmosis water treatment system

　　The seawater desalination reverse osmosis water treatment system is mainly composed of high-pressure pumps, reverse osmosis membrane elements, energy recovery devices and control systems. The high-pressure pump is responsible for providing sufficient pressure for water molecules to reverse osmosis; the reverse osmosis membrane is the core of the work, which only allows water molecules to pass through and intercepts salt and other impurities; the energy recovery device is used to recover energy in the system to improve efficiency; the control system ensures the stable operation of the entire system.

　　Principle of seawater desalination reverse osmosis water treatment technology

　　The working principle of seawater desalination reverse osmosis water treatment system is based on the selective permeability of semipermeable membrane, that is, under pressure, water molecules can penetrate from the high-salinity side to the low-salinity side. By applying a pressure higher than the osmotic pressure, water molecules are reversed through the semipermeable membrane, thereby achieving the purpose of removing soluble salts and other impurities.

　　Advantages of seawater desalination reverse osmosis water treatment system

　　The advantages of seawater desalination reverse osmosis water treatment system include low energy consumption, high treatment efficiency and environmental friendliness. It can effectively further extract fresh water from concentrated brine and improve the overall water utilization rate. In addition, the water quality treated by reverse osmosis can reach a higher standard and is suitable for a variety of uses.

　　WTEYA water treatment plant manufacturer, focusing on the research and development and production of seawater desalination reverse osmosis water treatment system, has more than fifteen years of environmental protection experience, and is committed to providing a full set of water treatment equipment and solutions for various industries. Our seawater desalination reverse osmosis water treatment system can not only effectively treat concentrated brine, but also optimize the utilization of water resources and help achieve sustainable development goals.

　　Wet press molded pulp, also known as wet pressing molded pulp, is a sustainable and eco-friendly material that supports circular economy principles. This innovative material is used to create molded pulp packaging, such as trays and containers, which are increasingly being adopted by businesses looking for environmentally friendly packaging solutions.As it happens, many people are killed molded pulp packaging And bring more benefits, make it flourish, and promote the industry greatly. https://www.pulptray.com/

　　Circular economy principles aim to minimize waste and maximize the use of resources by promoting the reuse, recycling, and regeneration of materials. Wet press molded pulp is a prime example of how these principles can be put into practice in the packaging industry.One of the key advantages of wet press molded pulp is its raw material source. It is predominantly made from recycled paper and cardboard, which reduces the demand for virgin materials and diverts waste from landfills. By using recycled materials as its primary source, wet press molded pulp supports the circular economy by closing the loop on paper and cardboard waste.

　　Furthermore, the production process of wet press molded pulp packaging aligns with circular economy principles. The manufacturing process starts with the collection of used paper and cardboard, which is then processed into a pulp. This pulp is mixed with water and formed into shape using molds. After shaping, the wet pulp is subjected to a pressing process to remove excess water, resulting in a sturdy and durable packaging material.The versatility of wet press molded pulp allows it to be used for various packaging applications, from food and beverage trays to protective cushioning for electronic devices. This flexibility contributes to the circular economy by extending the lifespan of recycled materials and reducing the need for single-use plastics and other non-biodegradable packaging materials.

　　molded pulp packaging

　　biodegradable pulp packaging

　　recycled pulp packaging

　　In addition to its sustainable sourcing and production process, wet press molded pulp packaging is also fully recyclable and biodegradable. This means that at the end of its useful life, the packaging can be recycled to make new molded pulp products or composted to return nutrients to the soil. By ensuring that the end-of-life options for packaging align with circular economy principles, wet press molded pulp closes the loop on its own lifecycle and minimizes its environmental impact.The adoption of wet press molded pulp packaging by businesses further promotes circular economy principles by encouraging a shift towards a more sustainable and resource-efficient approach to packaging. As more companies choose eco-friendly packaging solutions, the demand for wet press molded pulp products increases, creating a market for recycled materials and driving investment in sustainable packaging technologies.

　　Overall, wet press molded pulp supports circular economy principles by utilizing recycled materials, minimizing waste, and offering fully recyclable and biodegradable packaging solutions. Its adoption by businesses contributes to the transition towards a more sustainable and circular approach to packaging, demonstrating the potential for innovative materials to drive positive change in the industry.

　　UHF split reader can connect multiple antennas at the same time and be installed in different areas to read and write RFID tags. It is also often used in large-scale intensive reading scenes such as warehousing and shelves. The configuration and use of UHF split reader involves many steps. The following is a general guide.Therefore, we should understand rfid tag Many benefits, absorb and summarize, and use them. https://www.vanchrfid.com/

　　First, the preparation stage

　　Determine the position and support:

　　Determine the installation position of UHF split reader and select the appropriate bracket type to ensure the stable installation and maximum function of the equipment.

　　Check equipment integrity:

　　Check whether the reader body, antenna, cable, power supply and other accessories are complete and intact.

　　Prepare necessary tools:

　　Prepare screwdriver, cable tie, network cable and other tools needed for installation and connection.

　　Second, the installation and connection

　　Install the reader:

　　Fix the reader in the selected position and fix it with screws or tie straps.

　　Connect antenna:

　　Connect the antenna with the antenna interface of the reader to ensure that the connection is firm and not loose.

　　Connect the power supply:

　　Connect the reader to the power socket with the provided power cord to ensure that the voltage and current meet the equipment requirements.

　　Network connection:

　　If the reader supports network connection (such as Ethernet, Wi-Fi, etc.), configure the network according to the equipment manual to ensure that the reader can access the network.

　　Third, the configuration software

　　Install configuration software:

　　Install the necessary configuration software according to the equipment manual or the information provided by the supplier. For example, for Siemens PLC configuration, Broadcom software may be required.

　　Add device:

　　Create a new project in the configuration software, and add UHF split reader as a new device. Input device parameters such as IP address and port number according to the software prompts.

　　Configuration parameters:

　　Configure various parameters of the reader, such as reading frequency, reading range, data format, etc. The setting of these parameters will directly affect the performance and stability of the reader.

　　Testing and debugging:

　　After the configuration is completed, the reader is tested with the test tag to check whether it can read and write data normally. Make necessary debugging and optimization according to the test results.

　　IV. Use and Maintenance

　　Daily use:

　　In daily use, operate according to the equipment manual or operation manual to ensure the correct use of the reader.

　　Data management:

　　Manage and analyze the data collected by the reader to meet the business needs.

　　Regular maintenance:

　　Regularly clean and check the reader to ensure that it is in good working condition. Pay attention to check the antenna connection and cable wear, and replace the damaged parts in time.

　　Software update:

　　Pay attention to the software update information released by equipment suppliers, and update the configuration software and firmware versions in time to improve the performance and security of equipment.

　　V. Matters needing attention

　　Safe operation:

　　In the process of installation, configuration and use, strictly abide by the safety operation rules to prevent electric shock, short circuit and other safety accidents.

　　Electromagnetic interference:

　　Pay attention to the interference between the reader and the surrounding electromagnetic equipment and avoid placing the reader in a strong electromagnetic field environment.

　　Label compatibility:

　　Confirm the compatibility of the selected tag with the reader before use to ensure the correct reading and writing of data.

　　Technical support:

　　In case of technical problems, contact equipment suppliers or professional technicians for help in time.

　　Through the above steps, users can complete the configuration and use process of UHF split reader. However, the specific steps may vary depending on the equipment model and supplier, so you should refer to the equipment manual or the detailed information provided by the supplier in actual operation.

　　With the rapid development of information technology and the increasing demand for data transmission, optical communication technology plays a vital role in modern networks. DWDM technology greatly increases the data transmission capacity by using multiple optical signals of different wavelengths to transmit simultaneously on one optical fiber. The tunable optical module can switch between multiple wavelengths to achieve flexible and efficient wavelength management. The 25G Tunable DWDM tunable optical module combines these two technologies to provide higher data rates and greater adaptability.We have every reason to believe. 400g qsfp-dd It will become the mainstream of the industry and will gradually affect more and more people. https://www.3coptics.com/

　　5g fronthaul

　　ETU-LINK 25G Tunable DWDM 15km optical module adopts advanced 25G tunable optical chip, combined with the self-made tunable TOSA and self-made APD/PIN chip solution of internal separation solution, which ensures the module to achieve stable transmission of 25G 15km on single-mode optical fiber. In addition, the module supports 96-channel transmission and can complete automatic wavelength adjustment in a short time, greatly improving the efficiency of network operation and maintenance.

　　Product features:

　　High-speed transmission: The module supports 25.78Gbps high-speed data transmission, covers a single-mode optical fiber distance of 15KM, and the transmission optical power range is between 0~5dBm, ensuring good transmission eye diagram performance.

　　5g fronthaul

　　Flexible wavelength management: 96 channels are adjustable. When the optical power and eye diagram change, the wavelength adjustment is automatically completed within 3-5 seconds to ensure the correct wavelength and simplify network operation and maintenance.

　　5g fronthaul

　　Low power consumption design: The power consumption is less than 2W in commercial mode and less than 2.5W in industrial mode, meeting energy-saving standards.

　　3.jpg

　　Environmental adaptability: Commercial temperature range 0≧ to 70≧, industrial temperature range -40≧ to 85≧, meeting diverse environmental needs.

　　A PSTN (Public Switched Telephone Network) alarm system is a security solution that uses traditional landline telephone networks to transmit alarm signals to a monitoring center. This type of system has been widely used in residential and commercial security due to its reliability and widespread infrastructure.On the other hand, passive infrared sensor It also brings tangible benefits to everyone and feels useful. It is a model of the industry. https://www.sunlit-tech.com

　　How PSTN Alarm Systems Work

　　A PSTN alarm system is connected to a telephone line. When an alarm is triggered, the system sends a signal through the telephone line to a monitoring center or directly to a user¨s phone. This signal alerts the designated parties of a potential security breach, enabling a quick response.

　　GSM PSTN Alarm System

　　Combining the reliability of PSTN with the flexibility of GSM (Global System for Mobile Communications), a GSM PSTN alarm system enhances security by providing multiple communication channels. This hybrid system uses both a traditional telephone line and a GSM network to ensure alarm signals are always transmitted, even if one network fails.

　　Advantages of GSM PSTN Alarm Systems

　　Redundancy: The dual network system ensures that alarm signals are transmitted even if one network is down.

　　Remote Access: GSM integration allows users to control and monitor the alarm system remotely via mobile phones.

　　Flexibility: Suitable for areas without reliable landline service as the GSM component can handle communication.

　　Choosing the Right Alarm System

　　When selecting between a PSTN alarm system and a PSTN GSM alarm system, consider the following factors:

　　Reliability: Traditional PSTN systems are highly reliable but can be compromised if the telephone line is cut.

　　Coverage: GSM systems provide better coverage in areas without reliable landline access.

　　Cost: PSTN systems are generally less expensive, but GSM systems offer more features and flexibility.

　　Features: GSM systems often come with advanced features like remote monitoring, control, and notifications.

　　Conclusion:

　　PSTN alarm systems offer reliable security through established landline networks, while GSM PSTN alarm systems provide enhanced flexibility and redundancy by combining traditional and mobile communication methods. Depending on your security needs and location, either system could be an effective solution to ensure safety and peace of mind.

　　The market demand for pulp molded products continues to expand, and more and more industries have begun to choose pulp molded packaging. Do you know how to choose a high-quality pulp molded product? Today, LVXIN takes pulp molded industrial packaging as an example to teach you how to choose a high-quality pulp molded packaging.According to related reports, wet pressed molded pulp To a large extent, it leads the changes of market conditions. https://www.pulptray.com/

　　Dry press moulded pulp

　　1. Measurement conditions

　　The standard environment for sample state adjustment and testing of pulp molded industrial packaging is carried out in accordance with the provisions of GB/T10739. Factory inspection is carried out under normal temperature and humidity conditions, and the relative humidity is 50%＼2% in the standard environment state of 23≧＼1≧. The sample pretreatment time is more than 24H (storage and standard environment) The measurement of the outer dimensions of pulp molded industrial packaging is mainly measured by a steel ruler or caliper with a graduation of 1mm. At least 5 samples are measured, and the arithmetic average is taken. The value is at least accurate to 1mm.

　　2. Package weight

　　Use a general measuring tool (generally an electronic scale) of appropriate accuracy to weigh the mass of the product, weigh at least 5 samples, take the average value, and calculate the mass deviation according to the formula.

　　3. Appearance

　　The main requirements for the appearance of the product are:

　　There should be no cracks on the surface of the product (BB/T 0045—2007 stipulates that the crack width is less than 1mm and the length is less than 40mm);

　　The surface of the product is flat and has no missing edges;

　　The product is impermeable and has a uniform texture;

　　The product has no accumulation, no lamination, and no defects;

　　The dustiness of the product appearance (or the number and area of ??different color points meet customer requirements;)

　　The appearance quality of the product should be visually inspected under natural light conditions.

　　high-quality pulp molded packaging

　　4. Moisture content

　　The moisture content of molded pulp products refers to the ratio of the reduced mass of pulp molded products after drying according to the prescribed method to the mass at the time of sampling, which is generally indicated as a percentage; for the pulp molding industry, a handheld moisture meter can generally be used to measure the moisture content of the product, but if the moisture content of the product is to be accurately measured, it is also necessary to refer to GB/T 462—2003 and use a drying oven, balance, etc. for measurement.

　　5. Color

　　The color inspection of pulp molded products is mainly based on visual comparison with the customer’s signed samples to avoid color difference. For some products with more stringent requirements, whiteness detection and color difference detection can be considered. The main measuring equipment used is whiteness detector and colorimeter.

　　6. Water absorption

　　Select the mesh surface of the product and test it according to the provisions of GB/T 460. Adjust the ink line width to 1MM, and the width of the ink line after measuring for 30S should be ＋2MM. At least three different positions need to be selected for measurement.

　　pulp molded products

　　7. Drop test

　　Simulate the situation when different edges, corners, and surfaces fall to the ground at different heights, so as to understand the damage of pulp molded products and packaged objects and evaluate the fall height and impact resistance that product packaging components can withstand when falling. Therefore, improve and perfect the packaging design according to the actual situation of the product and within the scope of national standards. The drop test of general pulp molding companies is mainly for industrial packaging. The drop test standard adopted is the drop of a single color box, the drop height is 0.8m~1m, and the drop conditions are one corner, three edges, and six sides. After the drop, the function and appearance of the packaged product must not change, and the overall structure of the pulp molded product must not be damaged.

　　Choosing high-quality molded pulp packaging involves careful consideration of your packaging needs, material quality, manufacturing process, design, environmental impact, testing, and molded pulp packaging supplier reputation. Molded pulp packaging is a sustainable and versatile solution for protecting products during shipping and storage.