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  4. let you know what are PVC profiles...

let you know what are PVC profiles

let us know what are PVC profiles
PVC profile is a kind of PVC product for industrial and daily life which is formed by PVC resin with various functional additives after high temperature extrusion molding.
Chinese name PVC profile performance classification Hard and soft applications are mostly used in construction cited PVC profile development history
table of Contents
1 Introduction
2 Performance classification
3 Features
4 Development
Introduction
PVC profile is a kind of PVC product for industrial and daily life which is formed by PVC resin with various functional additives after high temperature extrusion molding.

Performance classification
According to the performance, it can be divided into hard and soft. Hard PVC profiles are mostly used in construction, such as making PVC doors and windows, PVC floors, PVC pipes, etc .; soft PVC profiles are used for PVC hoses, transmission cables, etc.
Features
PVC profiles added with functional additives have anti-aging, anti-ultraviolet, corrosion resistance, high strength, low price, good thermal insulation and thermal insulation properties, and can partially replace aluminum profiles and steel.
Pollution is lower than aluminum profiles.
development of
Development history of PVC profiles in China
PVC profile products have experienced the introduction period and the period of high-speed development. From the perspective of time, they can be defined as the 1980s-mid-90s and 1995-2002, respectively. After 2003, the PVC profile industry entered a transition period. During the product introduction period: manufacturers generally pursue low cost, simplify the profile of doors and windows, and fill a large amount of calcium carbonate in the formula, resulting in very low product performance, and many quality problems have affected the promotion of products.
Beginning in 1995, a group of powerful enterprises began to digest and absorb the technical essence of foreign European profiles, developed their own doors and windows series, and became the leading domestic plastic doors and windows. Development and rapid growth. After entering the product maturity period, that is, from 2003, many shortcomings began to reflect. Excessively high profit margins led to excessive blind investment, making the industry's comprehensive production capacity of nearly 3 million tons, far higher than market demand; Instead of starting with product innovation and technological innovation, they simply imitated, even cut corners, counterfeit and shoddy, and the industry market competition is in a non-healthy state. The rising price of raw materials in the market has exacerbated this unhealthy competition, which has put some enterprises in a dilemma and stopped or semi-stop production.
Status of PVC profile industry
The industry also has a large number of production enterprises (nearly 400), small output and large capacity (2.8 million tons), small demand (1.2 million tons of national profile sales in 2003), the contradiction that the production capacity cannot be fully utilized, and the annual output exceeds Less than 10 companies with 20,000 tons have uneven product quality levels, inferior products still have a market, and the industry's quality and technical standards are too low, which is not conducive to technological progress, resulting in a comeback of alternatives. The high-end market (30%) is occupied by foreign brands, the low-end market is unprofitable and fiercely competitive, and the final pattern has not yet formed.
In terms of factory distribution, 37% of the 392 profile manufacturers are in the southeast region, 12% in Shandong, 17% in the central region, 19% in the northeast region, and 15% in the west region. In terms of production capacity, the national production capacity in 2003 was 2.8 million tons, with 9% in Shandong, 1% in central, 32% in northeast, 7% in western, and 39% in southeast.
Prospects for the development of PVC profiles
During the "Ninth Five-Year Plan" period, China achieved an average annual economic growth rate of 8%. In the recommendations of the "Tenth Five-Year Plan", it was clearly pointed out that further strengthening of infrastructure construction and implementation of the urbanization strategy have provided a broad range for the development of the national building materials industry. Space.
Current status of PVC pipe industry
As one of the products of technological development, PVC pipes are visible in daily life. In Europe, the growth rate of plastic pipes was 8% from 1980 to 1990, and the output reached 3.5 million tons in 2001, of which PVC pipes accounted for 60%. In 1985, the output of plastic pipes in the United States was 1.6 million tons, and in 1999 it was about 3.6 million tons, of which PVC pipes accounted for 78%. The first UPVV flared pipe in China was born in Shenyang Plastic Factory (now Shenyang Jiuli's predecessor) in 1983. Since then, mainland China has the production capacity of PVC water supply and drainage pipes. The late 1990s was a period of rapid development of PVC pipes in mainland China. During the period, some factories with an annual production capacity of more than 50,000 tons have been built and put into operation, and more than 30 PVC pipe factories with production scales of more than 10,000 tons have been built. The annual production capacity of plastic pipes by 2013 is 2 million tons.

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