Deficiency and future development of the hottest r

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Shortcomings and future development of the rotational plastic storage tank industry in recent years, China's rotational plastic industry is developing continuously, but there are still problems. Due to the continuous popularization of plastic storage tanks, the problems existing in the rotational plastic storage tank industry should be put forward emphatically, and then the future development trend of the rotational plastic industry should be clarified according to the relevant problems. Now let's make a detailed explanation on the specific problems and development direction

what is rotational molding

rotational molding is also called rotational molding, rotational molding, rotational molding, etc. in English, it is rotationalmolding. How many processing and molding methods of plastics want to deal with such shortcomings? In addition to our common injection molding, blow molding, extrusion molding and other processes, rotational molding (rotational molding) is also an important processing method for plastic products or steel plastic composite products. Especially in hollow molding, rotational molding has more prominent advantages

1. Problems existing in domestic rotational plastic storage tank industry

(1) rotational plastic production enterprises have few equipment, small production scale and low degree of intensive upstream and downstream products

(2) lack of R & D capability and core technology, including process technology, equipment and mold manufacturing technology, engineering design capability and product application development technology

(3) the category is not fine enough, with low added value and poor market competitiveness

(4) lack of reliable and high-quality domestic raw materials, and most of them still rely on imports

the rotational molding process is to first add the plastic raw materials into the mold in the form of powder, then rotate the mold (three-dimensional movement) and heat the mold. At this time, the plastic raw materials in the mold are gradually and evenly melted and coated on the whole surface of the mold cavity under the action of gravity and heat energy, and then the cooled plastic products or steel plastic composite products are rotational plastic products in the scope of application

2. Development trend and direction of domestic rotational plastic storage tank industry

(1) stable mechanical performance and continuous expansion of the scale of rotational plastic production enterprises

(2) through the adjustment of the product structure of roto plastic products, the varieties of roto plastic products are increasing day by day, the scientific and technological content of roto plastic products is constantly providing high, and roto plastic products will develop towards the direction of high performance and high added value

(3) increase the research on relevant processes, equipment and molds to form their own core technology

(4) strengthen the development of domestic special materials for rotational molding, and establish a raw material R & D center to completely change the current situation that plastic raw materials mainly depend on imports

at present, the rotational molding industry in foreign countries is developing rapidly, while the rotational molding processing industry in China is developing faster than other plastic molding processing industries due to various factors. Recently, with people's increasing understanding of the advantages of rotational molding, the rotational molding industry has shown a trend of accelerated development in China

3 roto plastic storage tank process

(1) roto plastic storage tank is formed by roto plastic process

(2) PE plastic storage tanks produced by the company are made of special materials for rotational molding - linear low density polyethylene (LLDPE) or linear medium density polyethylene (LMDPE). PE plastic storage tank can hold most inorganic acids, alkalis, salts and many organic substances under normal temperature

(3) the minimum softening point of the plastic used in the rotational plastic storage tank is 108 ℃, and the maximum fragmentation point is -70 ℃, so it can generally be used to hold liquids with a temperature of -40 ℃ to 60 ℃. If the specific gravity of the liquid contained is heavy or the temperature is higher than 60 ℃, the steel lined plastic anti-corrosion tank shall be used to prevent the tank from softening and deformation. If PE plastic storage tank is used for chemical reaction or dilution, corresponding tests shall be conducted in advance to determine the maximum temperature of reaction or dilution

in recent years, with the vigorous development of various environmental protection projects, the demand for various types of storage tanks has increased greatly, and the uneven market of rotational plastic storage tanks has been criticized by the pressure rollers in the industry. "Our rotational plastic PE storage tanks have irreplaceable advantages in the same type of products!". At a time when enterprises of all sizes have sprung up one after another and the competition has become increasingly fierce and cruel, where does his confidence come from

due to the limitations of people's cognition and market regulation, people's ability to evaluate the price of rotational plastic storage tanks is still very weak, which leads many customers to buy at high prices or because the price is prohibitive, so they must make preparations before buying. Although it is a new thing, with its superior performance and reasonable price, rotational plastic storage tank will occupy the future market and become a new favorite of the rotational plastic storage tank industry

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