Application of flame-retardant plastic materials in new energy automobile parts

 

Flame-retardant plastic materials are often used in auto parts, especially in new energy vehicles. Flame-retardant plastic materials are more widely used. Especially in charging piles and battery parts, plastic materials are required to be flame retardant. Look at the applications of flame-retardant plastic materials in automotive parts.

 

Flame-retardant plastic materials are mainly used in the parts of new energy vehicles. Battery modules, charging piles, charging guns, etc., must be made of flame-retardant materials. As the charging connector of electric vehicles, the charging gun is the "axial" connecting the charging facilities such as charging piles and the electric vehicle. The quality of it directly affects the charging performance and safety. The material requirements of the charging gun are relatively high. Common materials include: PBT + GF, PA + GF, weather-resistant PC, etc.

 

shell

 

The shell of the charging pile is generally made of flame-retardant PC material. Material characteristics: halogen-free and flame-retardant, high surface gloss, excellent electrical insulation properties, and excellent mechanical properties.

 

Battery case

 

Plastic shells are currently the main development direction of power battery shell materials due to their good overall performance. For example, the series of lithium batteries produced by domestic companies are all plastic shells. It is reported that in the power battery standard, corresponding clear flame-retardant requirements are put forward for the battery shell box, and now more and more companies are beginning to use flame-retardant plastics for power batteries.

 

The basic requirements for connector materials: heat-resistant and flame-retardant! The connector contacts are made of metal, which requires a high number of plugs and unplugs. The material is required to have good flame-retardancy, heat resistance, and avoid fire. At present, the commonly used materials for connectors are PBT and PPS, PA, PPE, PET, etc.

Both traditional wires and cables, car charging cables have high requirements for materials and equipment because of their special application environment. As the charging process time of electric vehicles changes rapidly, the current intensity is high, and the frequency of use is high, the material is required to have certain high-temperature resistance, aging resistance, and halogen-free flame retardancy, and low smoke during combustion while ensuring good insulation. density.

 

Compared with traditional alloy materials, plastic parts have unparalleled advantages. Plastic products will help reduce the weight of cars. Data shows that for every 10% reduction in vehicle weight, fuel economy can increase by 5%, so new energy vehicles using plastic products can run farther.

 

Plastic products can also reduce the production cost of car companies. A simple injection-molded plastic part can perform the function of welding many metal parts together. The plastic can be molded into a more complex shape than a steel assembly, which can reduce the integration process. The number of parts used.

 

In addition, the elastic deformation characteristics of plastic products absorb a large amount of collision energy, have a greater buffering effect on strong impacts, and play a good role in protecting vehicles and passengers; plastics have strong corrosion resistance, local damage will not corrode, and steel Once the paint is damaged or the anti-corrosion is not well done, it will be easy to rust and corrode, which will affect the appearance of the car body and cause safety hazards;

 

According to the composition of the plastic, plastics with the required properties can be prepared by adding different fillers, plasticizers, and hardeners, and the mechanical strength and processing and forming properties of the plastic can be modified to meet the requirements of different parts of the car. It can be said those plastics have contributed to the rapid development of new energy vehicles, and the rapid development of new energy vehicles has opened up a broad market for plastics.

What are the smart wearable devices

 

Overview of smart wearable devices

　　The smart wearable device is the general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as watches, bracelets, glasses, clothing, etc. Wearable smart devices have many years of development history. Ideas and prototypes have appeared in the 1960s, while devices with wearable smart devices appeared in the 1970s and 1980s.

 

The advent of the era of wearable smart devices means the extension of human intelligence. Through these devices, people can better perceive external and own information and can process information more efficiently with the assistance of computers, networks, and even other people. Enables more seamless communication

 

1. Wearable smart bracelet

 

　　 Smart bracelet is a wearable smart device. Through this bracelet, users can record real-time data such as exercise, sleep, some food and others in daily life, and synchronize these data with mobile phones, tablets, iPod touch, and play a role in guiding healthy life through data.

 

2. Wearable smart watches

 

　　 Smart watch is a smart watch with a built-in smart system, equipped with a smart phone system and connected to the network to achieve multi-functions. It can synchronize calls, text messages, emails, photos, music, etc. in the phone. According to media reports in March 2013, technology giants such as Apple, Samsung, and Google will release smart watches later in 2013. Ivey, an analyst at CurrentAnalysis, a US market research company. Greengart (AviGreengart) believes that 2013 may be the first year of smart watches.

 

　　 The shape of a smart watch is similar to an electronic watch. It consists of an electronic display, a camera, a microphone, control buttons, and a wristband, and is connected to a mobile phone through Bluetooth technology. The application of big data in wearable devices allows smart watches to analyze user data. Wearers can use smart watches to answer or make calls, send and receive emails and messages, store and transmit data, and track or manage personal information. It is an extension and expansion of mobile phone functions, which can avoid the trouble of frequent manipulation of mobile phones by mobile phone experts. Some smart watches also have functions similar to smart bracelets.

 

　　3, wearable electronic socks

 

Electronic socks are a kind of foot cover used in taekwondo competitions. There are many electronic sensors on them. Using these sensors, the referee can judge the outcome of the game based on the score of the scoring device. It can be said to be a high-tech sports tool. There is a large sensing area above the electronic socks. When there is a certain area in contact with the protective gear and sufficient strength, the sensing area will return a scoring signal, and the scoring device on the sidelines will also display the score. The price of electronic socks is not low, with an average of 30,000 yuan per set. The electronic socks have to pass the test before the game, and the use of unqualified electronic socks will be disqualified.

 

4. Wearable device Google Glass

 

　　 Google Glass is actually, a head-mounted display system that must be used with a smartphone. A microphone and headset are integrated on the tiny Google glasses, and a miniature camera is built in the front left, which allows the wearer to take pictures, send and receive information, and implement other functions through voice commands. The batteries required for the glasses are also implanted in the glasses frame, the overall appearance is very simple and very modern. What's more commendable is that it weighs only tens of grams and is a smart phone that can be mounted on the bridge of the nose.

 

5. Smart fashion clothing

 

　　 The rise of smart clothing has unlimited prospects. Whether it is the world of women's clothing or the world of children's clothing, competition in various fields is heating up, and smart clothing is no exception. Smart clothing was originally a cutting-edge field. As the clothing industry is becoming more and more prosperous, merchants with a sensitive sense of smell have expanded their original narrow market space. In the next few years, our wardrobe will be filled with such smart clothes-"smart shirts" that can read the heartbeat and respiratory rate of the human body; jackets that can automatically play music; those that can display text and images on the chest T-shirts... American technology media predicts that in the future, clothing will become a true "multi-functional portable high-tech product." A piece of clothing can play music, video, adjust the temperature, and even surf the Internet.

Elbow injection molding

 What is elbow injection molding?

Most of you probably have heard of the option “Core Pull” with Injection Molding Machines. Simply put, the core pull allows a cavity to be put in the product parallel to the clamp. ... The important component is that the product being create must need a place devoid of plastic that cannot be accommodated by the mold itself.

 

 

Molds, various molds, and tools used in industrial production to obtain required parts by injection molding, blow molding, extrusion, die-casting or forging molding, smelting, stamping, and other methods. In short, a mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article by changing the physical state of the formed material. At present, the injection mold has become a very common mold used in the industrial production process. The slider is a mold component that can slide perpendicular to the mold opening direction or at a certain angle to the mold opening direction during the mold opening action. For some Parts with undercuts are often molded normally only by adopting a slider structure. But when the molded product is an arc-shaped hollow product, arc core-pulling molding is required

 

The core-pulling system is used to handle the position where the product cannot be demolded on the parting surface. It is a special structure of the mold.

 

Core-pulling is a definition: a mechanism that ensures the smooth demolding of the product, also called a slider.

 

For example, there is a hole on the side of a plastic part. After the mold is opened, if the core of the hole is not removed, the product cannot be ejected.

 

At this time, the structure of the mold must adopt the structure of the slider, the core of the hole is made movable, and the inclined guidepost is used to cooperate with the fixed mold, and the the slider moves with the mold opening or closing. This kind of movement is called core pulling.

 

The core-pulling mechanism is a common mechanism in the mold. The core-pulling mechanism usually moves together with the upper mold and uses positioning or guiding mechanisms such as guide blocks to ensure the accuracy of the core-pulling. In order to simplify the mold structure and reduce the mold space.

 

The common core-pulling mechanism is mostly driven by a cylinder to complete the core-pulling. There are various structures such as positive core-pulling and reverse core-pulling. The reverse core-pulling structure takes up less space than the positive core-pulling structure. There are fewer restrictions on mold space.

 

However, the structure of the reverse core pulling is relatively complicated to set up, the process part is time-consuming, and the structure is complicated, the production and installation is time-consuming and labor-intensive, and too many parts affect the accuracy of the mold.

 

The positive core-pulling adopts an oil cylinder to directly drive the pulling structure, which is simple in structure, but the oil cylinder requires a certain installation control and driving stroke, which causes the increase of the mold and the cost of the mold, and the use of the mold increases the site requirements.