The Swedish Chemicals Agency stated that one of the most common ways for companies to ensure that products meet regulatory requirements is to require suppliers outside the EU to provide certification and other related documents, or to provide analysis reports from suppliers, or to use only European markets. The tyres produced by the “EU registered†are presumed to comply with regulatory requirements.
PAHs refer to a large group of chemical substances, which are usually found in petrochemical products, rubber, plastics, lubricants, rust-proof oils, and incompletely burned organic compounds. When the tire wears, particles containing PAHs are released. Inhalation or airborne transmission into land and water sources can cause damage to human health and the environment, as well as being persistent, bioaccumulative, and carcinogenic. Some European Union countries as well as the European Union's Rubber and Tyre Manufacturers Trade Association (ETRMA) have found in earlier tests that tires imported from outside the EU contain excessive amounts of PAHs, of which China is involved in multiple batches and has received much attention.
In view of the serious hazards of PAHs, according to the EU REACH regulations, as of January 1, 2010, if the tyres and oils used in tyre manufacturing are listed in the regulations, benzo(a)pyrene (BaP), benzene And (e) Eight kinds of PAHs such as beryllium (BeP), benzo(a)pyrene (BaA), etc. exceeding 10 mg/kg, or benzo(a) pyrene exceeding 1 mg/kg, will not be sold; Germany also strengthens the management and control requirements of PAHs for power tools and other products; of the “priority pollutants†proposed by the US Environmental Protection Agency, there are 16 types of PAHs, and PAHs must be tested before related products are put on the market.
Europe and the United States are the two major overseas markets for Chinese tire products, and the annual export volume has increased year by year. According to statistics, from January to October this year, Ningbo Port exported 12.69 million tires worth US$430 million, an increase of 50.9% and 61.6% respectively from the same period of last year. Among them, the EU as the main export market, exports 2.6 million, an increase of 46.1%.
The inspection and quarantine authorities reminded relevant companies that they should actively understand the latest developments in relevant standards and regulations of exporting countries, and make early adjustments in raw material procurement, product design, etc.; in addition to labeling the manufacturer's name, manufacturing date code, rolling noise, and In addition to the wet-slippery road surface grip, attention is paid to the toxic and hazardous substances in tire products. This requires companies to strengthen their sense of quality, improve product quality, and do a good job in the qualification testing of later stages, and provide compliance certificates and related documents to ensure the PAHs content. Meet the specification requirements. At the same time, it should maintain close contact with relevant departments to ensure the smooth export of products.
Extrustion Blow Molding Machine
Blow moulding machines can be divided into three categories: extrusion blow moulding machines, injection blow moulding machines and special structure blow moulding machines. Stretch blow molding machines can be classified into each of the above categories. Extrusion Blow Molding Machine is the combination of extruder, blow molding machine and die closing mechanism, which is composed of extruder and blank die head, blow expansion device, die closing mechanism, blank thickness control system and transmission mechanism. The blank die is one of the important components that determine the quality of blow molding products, usually including the side feed die and the center feed die. The storage cylinder type blank die head is often used for large products during blow molding. The minimum volume of the storage tank is 1kg and the maximum volume is 240kg. The parison thickness control device is used to control the parison wall thickness. The maximum control point is 128 points, generally 20~30 points. The extrusion blow molding machine can produce hollow products with a volume range of 2.5ml~104l.
Injection blow molding machine is the combination of Injection Molding Machine and blow molding mechanism, including plasticizing mechanism, hydraulic system, control electrical apparatus and other mechanical components. Common types include three-station injection blow molding machine and four-station injection blow molding machine. The three-station machine has three stations for preforming, blowing and demoulding, each of which is separated by 120 °. The four-station machine has more pre-forming stations, each of which is separated by 90 °. In addition, there is a dual-station injection blow molding machine with 180 ° between stations. The plastic containers produced by the injection blow molding machine are accurate in size and do not need secondary processing, but the mold cost is high.
The special structure blow molding machine is a blow molding machine that uses sheet, molten material and cold blank as parison to blow mold hollow body with special shape and purpose. Due to the different shapes and requirements of the products produced, the structure of the blow molding machine is also different.
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