The latest statistics show that in the fourth quarter of 2011, the total output value of Taiwan's petrochemical industry (including chemical raw materials, synthetic plastics, and synthetic rubber) reached 426.6 billion yuan, a decrease of 5.7% from the previous period and a year-on-year decrease of 6.8%. In 2011, the output value of the petrochemical industry in Taiwan reached 1.9076 trillion yuan, with an annual growth rate of 4.7%.
In the fourth quarter of 2011, the major factor in the decline in the output value of the Taiwanese petrochemical industry was the impact of the international market on the weak demand for petrochemical products. In terms of sub-sectors, the output value of the petrochemical raw material manufacturing industry located in the uppermost reaches in the fourth quarter of last year was 267.5 billion yuan, a decrease of 4.9% from the previous quarter and a year-on-year decrease of 5.5%. The output value of synthetic resins and plastics manufacturing in the middle reaches of the industry in the fourth quarter was 144.2 billion yuan, a decrease of 7.7% from the previous quarter and a decrease of 10.9% year-on-year. The best performer in the fourth quarter of last year was the synthetic rubber manufacturing industry. The single-quarter production value was 15 billion yuan, up by 1.5% from the previous month and up 19.5% year-on-year, mainly due to the impact of the butadiene price stoppage and rebound, and the sales price of synthetic rubber followed the rise.
Looking forward to the first quarter of 2012, based on the full rise in the prices of supplementary stocks and petrochemical products, IEK expects the output value of the first quarter to be 434.2 billion yuan, up 1.8% from the previous quarter. Chen Baolang, chairman of Taiwan Formosa Petrochemical Co., Ltd., said that Formosa Petrochemical's first-quarter operation will also rise significantly due to the rise in prices of related petrochemical products in the fourth quarter of last year. However, IEK said that the petrochemical industry will still be affected by global issues such as European and American debt throughout the year, and the total output value for 2012 is expected to be 1008.2 billion yuan.
There are many methods of plastic molding. Injection molding is one of them. Injection molding is also called injection molding, which is called injection molding for short. It is a main molding method of thermoplastic. Because it has the advantages of wide application, short forming cycle, high production efficiency, good production conditions, easy mechanization and automation, it plays an important role in the whole plastic forming process.Injection molding refers to injecting granular or powdery plastic from the hopper of the injection machine into the high-temperature barrel, heating, melting and plasticizing to make it a flowing melt, and then under the high pressure of the plunger or screw of the injection machine, it passes through the nozzle at a large flow rate and is injected into the mold cavity. After a period of pressure maintaining, cooling and shaping, When the mold is opened, the Plastic Parts with certain shape and size can be detached from the mold cavity. In this way, the time required to complete an injection cycle can range from a few seconds to tens of seconds, which mainly depends on the size and thickness of the workpiece.
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