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Development status of China's plastic building materials industry in 2008
Plastic building materials are a rising star in the building materials industry. With the rapid growth of China’s real estate industry in recent years and the country’s increased investment in infrastructure, China’s plastic building materials industry has become the second only to packaging in the plastics industry. Major pillar industries, with an average annual growth rate of over 15%.
In recent years, China's plastic building materials industry has accelerated the pace of R&D, promotion and application. The production scale of the industry has continued to expand, and the level of technology has improved steadily. In particular, plastic profiles and pipes have entered a period of stable and mature growth and have become the most widely used plastic building materials. . More than 30% of China's regions have applied new plastic pipes, and some provinces and cities with rapid development have reached 90%. In some cities and towns in the three northeastern provinces, Inner Mongolia and other places, more than 40% of new houses use plastic doors and windows, and more than 80% of new houses in Qingdao and Dalian use plastic windows.
From January to December 2006, enterprises above designated size in the plastic sheet, tube, and profile manufacturing industry in China achieved a total industrial output value of 125,714,106 thousand yuan, an increase of 30.35% over the same period of the previous year; cumulative product sales revenue was 120,739,577 thousand yuan, a year-on-year increase An increase of 29.09% over the same period; the total realized profit was 5,905,211,000 yuan, an increase of 32.51% over the same period of the previous year.
From January to November 2007, the enterprises above designated size in the plastic sheet, tube, and profile manufacturing industry in China achieved a total industrial output value of 149,891,272 thousand yuan, an increase of 29.20% over the same period of the previous year; cumulative product sales revenue was 146,609,859 thousand yuan, a year-on-year increase Over the same period, it increased by 32.34%; the total realized profit was 7,906,131,000 yuan, an increase of 47.18% over the same period of the previous year. Well-known foreign companies have been paying attention to the Chinese plastic building materials market for a long time, and have entered the Chinese market with high-quality and high-priced products, which has made the competition in China's plastic building materials market increasingly fierce. However, the domestic plastic building materials industry is mostly processing enterprises, which are small in scale, weak in technology, and not paying attention to product research and development. For this reason, plastic building materials companies should pay attention to R&D investment while producing. In view of the high price of raw materials, companies can form production alliances or conduct mergers and reorganizations to reduce production costs and achieve economies of scale. It is estimated that in the next 5 to 15 years, China's annual construction area will exceed 1 billion square meters. Under the guidance of various national building energy-saving policies, the plastic building materials market is expected to develop more rapidly. By 2015, the average market share of various construction plastic pipes and plastic doors and windows in China will reach 50% and 30% respectively. In terms of demand, various construction plastic pipes and plastic doors and windows, together with polymer waterproof materials, decoration materials, thermal insulation materials and other plastic products for construction, total demand about 10 million tons. The plastic building materials industry is showing a prosperous situation, and the majority of enterprises must seize this favorable opportunity to raise China's plastic building materials industry to a new level.
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2020-12-07
Characteristics and connection method of PE gas pipe
1. Features of PE gas pipe
1. Good hygiene performance: no heavy metal salt stabilizer is added during PE pipe processing, the material is non-toxic, no scaling layer, no bacteria breeding, and it solves the secondary pollution of urban drinking water.
2. Corrosion resistance: Except for a few strong oxidants, it can withstand the erosion of a variety of chemical media; no electrochemical corrosion.
3. Long service life: PE pipes can be used safely for more than 50 years under rated temperature and pressure conditions.
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2020-12-07
PE gas pipe hdpe gas pipe
PE gas pipe adopts gas polyethylene pipe with many excellent properties and is used in the field of gas transportation. The corrosion of steel pipes and cast iron pipes and the leakage of joints will be completely solved, thus ensuring the safe operation of the gas pipeline network system. The PE material selected for the PE gas pipe is an inert material, which can withstand the erosion of a variety of chemical media.
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2018-03-22
Ways to reduce the noise of PVC drainage pipes
While adding stabilizers to improve the chemical stability and strength of pvc pipes, the sound insulation performance of the plastic itself has been greatly weakened. Therefore, in the current situation of reliable mechanical performance of pvc drainage pipes, how to solve the problem of sound insulation and noise reduction has become a top priority. The author believes that we can start with the noise source and adopt the following improvement measures to improve its sound insulation performance:
①It is made into double-wall hollow sound-proof PVC drainage pipe
The special equipment for PVC pipe extrusion is modified, an intermediate mold is added between the inner and outer jacket, and the outer mold is modified to increase the intermediate distance to form a hollow cavity between the two walls, so that the plasticity of PVC will not be changed. But it can increase the damping of the pipe along the flow direction, thereby increasing
Strong sound insulation effect.
Using single-wall double-material PVC pipe
On the basis of the original single-wall PVC pipe, a secondary formula is carried out, that is, the porous sound-absorbing material formed by plastic foaming technology is used to increase the wall thickness to achieve the purpose of increasing the damping along the outer wall direction, so as to obtain a good sound insulation effect. A set of equipment needs to be added, thus increasing the manufacturing cost.
Muffled PVC drainage pipe
The PVC pipe is made into a muffled drainage pipe with spiral fins attached to the inner wall. At this time, its outer wall is still a PVC hard plastic pipe (to ensure the required strength of the drainage pipe), but a certain width of flexible and strong soft is attached to the inner wall Plastic spiral belt, which unloads part of the impact pressure of the water flow onto the spiral belt, thereby buffering the pipe wall.
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2018-03-22
What is the difference between PVC water supply pipe and PVC drainage pipe
1. Different purposes: one for water supply and one for drainage. PVC water supply pipes are mainly used for: a. Indoor water supply and reclaimed water systems for civil and industrial buildings; b. Buried water supply systems for residential quarters and factories; c. Urban water supply pipeline systems; d. Water treatment plant water treatment pipeline systems; e. Marine aquaculture; f. Garden irrigation, well sinking and other industrial pipes. PVC drainage pipes are mainly used for building drainage and domestic sewage drainage.
2. Different specifications: PVC water supply pipes have more specifications and models, and PVC drainage pipes have relatively fewer specifications and models, because the drainage system itself does not require too many specifications. Even with the same model (outer diameter), the wall thickness of the water supply pipe and the drain pipe are often different, because the water supply pipe requires pressure, and the drain pipe usually does not need to consider the pressure.
3. The price is different: This will not be explained in detail, and the specific price can be consulted by each manufacturer.
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