Plastic auxiliary machines can generally be divided into crushers, dryers, feeders, mixers, thermostats, chillers, and so on. There are many manufacturers specializing in the production of various plastic auxiliary machines in China. A wide range of plastic auxiliary equipment is widely used in various fields of the plastics processing industry. Whether it is injection molding, extrusion or blow molding processes, whether it is the production of hollow containers, plastic film or plastic pipes or profiles, plastic auxiliary equipment is an indispensable equipment, and sometimes it is an integral part of a full production line.
Plastic auxiliary machine - crusher
Many manufacturers of plastic containers and products produce scraps and defectives during the production process, and they are usually crushed using a pulverizer for reuse. In particular, the crusher plays an important role in the waste plastic recycling production line. Most of the waste plastics need to be broken into small pieces or pieces before entering the sorting process.
Due to the low technological content of crushers, China can produce a lot of presses for crushers. According to different uses, the crusher is divided into low-speed crusher, medium-speed crusher, high-speed crushing machine (TodayHot) and powerful crusher and so on.
The low-speed crusher is generally suitable for the crushing of stick-shaped engineering plastic parts, and belongs to a relatively high-tech and relatively new type of crusher. The medium-speed crusher has a wide range of applications and can both smash hard engineering plastics and crush relatively soft ones. General-purpose plastics are the most versatile crushers and have the largest output. High-speed crushers are generally used as machine-side crushers. They can both smash harder bar materials and smash hot and soft materials, and due to production. With high efficiency, it can also be used as a centralized crusher, and the price is relatively low. The strong crusher is mainly used in occasions where large amounts of crushing are required, and can crush relatively thick products such as plastic profiles and pipes.
At present, there are many manufacturers of general-purpose crushers in China, and they can basically meet user requirements. Only the crusher produced by most manufacturers has a rough appearance and the cutters are not durable enough.
Plastic auxiliary machine - dryer
Whether it is injection molding, extrusion or blow molding, there is usually a requirement for the dryness of plastic resins. Some plastic resins can easily absorb water from the atmosphere, such as PET resin. Therefore, before starting the plastic processing, it is usually necessary to dry the resin to achieve the prescribed moisture requirement.
In industrial production, hot air is usually used to dry the resin. The main factors affecting the drying effect are air volume, temperature and dew point.
Generally, the air is used to dry the material. In order for the material to reach the final desired moisture content, there must be enough air volume to complete the heating cycle and take away the moist air; each material has its own unique drying temperature range. In the allowable drying temperature range, set the temperature as high as possible to help improve the drying efficiency.
Hot air vented dryers are the most commonly used form of dryer. Its main characteristic is that it can maintain the resin drying temperature evenly, and thus can successfully shorten the drying time.
In addition, there is a dehumidification hot air dryer. The dry air passes through the material in the hopper, removes moisture from the material, and continues dehumidification after leaving the drying hopper, and warms up to the optimum temperature required to dry the hopper before re-entering the drying hopper.
Many Chinese companies produce dryers. In the production and technology of single-machine dehumidification equipment, the gap between products manufactured by imported or wholly foreign-owned enterprises is not large, but there are still gaps in in-line equipment such as conveyor-integrated dryers. Only a few joint ventures can produce. This integrated equipment combines the dryer and the feeder into one, which can greatly improve the convenience of product use, save energy, and fully utilize the efficiency of the molding site.
The good development prospects of the plastics processing industry will continue to be the source of the rapid development of China's plastics machinery manufacturing industry. It is estimated that from 2001 to 2010, the average annual growth rate of plastic machinery demand in China will be about 6%, and it is expected to reach 14.5 billion by 2010. yuan. It is believed that in the future, plastic auxiliary equipment will also develop rapidly.
Dressing tables initially started as small portable cosmetic boxes that were filled with little perfume flasks, combs, nail files, tiny scissors, etc.. Women of high status would have their maids carry them out when the Madame would ask for a comb. The French called these ornate boxes `necessaires` (must-haves).
It wash`t until the late 1700s that finally someone placed the box on a table and drew up a chair.
The Dressing Table, as we know it today, was developed in Europe in the beginning of the 17th century. By the 18th century, it became known as a mark of social standing as well as an object of fine design and craftsmanship.
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