The review of China’s system of the development on UPVC window and door
UPVC doors and Windows industry in China it is really the USSR, and of great potential of the prairie, but avoid by all means, blind and repetitious construction, only the amount of attention has increased sharply, don’t pay attention to improve the quality, market competition is relentless, door window enterprise continuously add, also unceasingly eliminated.
A rapid development, plastic doors and Windows
The author puts forward some early 1997 Chinese system plastic doors and Windows point of view, and after a few years, plastic doors and Windows in the rapid development of our country unprecedented, 1997 Beijing, tianjin, Shanghai, shaanxi, gansu, qinghai, xinjiang, ningxia, shanxi, hebei, Inner Mongolia, zhejiang, hunan province, the city, the autonomous region were in the growth rate of more than 100%, and the Shanghai growth of 335% or more, ranks the first in China. 1998 more rapid development, profile factory and assembly plant horse in succession, broke the previous people to plastic doors and Windows doubts and promotion of the poor situation. The real estate business and the common people already realized earnestly to the plastic doors and Windows, the superiority of plastic doors and Windows become the first choice of building door window product.
The product trend similar, lack of novelty
In a number of plastic doors and Windows in the market, the varieties and without a corresponding increase, but is instead of a single gradually tendency, most factories copy Europe type system, cavity imitate each other, lack of originality and creativity, which are the development in the future will market competition is into the same cavity, the same window type price competition. To make plastic doors and Windows in the healthy development of our country, the author expounds Chinese system development again the necessity and the urgency of the plastic doors and Windows to consensus.
China’s vast in territory, and the thing north and south year-round temperature difference, divided into five buildings thermotechnical design division, wind pressure distributions also have very big different, plus building design is rich variety, as building eyes-doors and Windows, must adapt to climate conditions and architectural style and diversification. Have the so-called European system window (the real refers to Germany, Austria design window), also want to have the so-called American system window (the United States, Canada design window), more should have taken many long, suitable my sense of the Chinese system plastic window, fully embodies the advantages of plastic doors and Windows.
Just as the European architecture design is not waking, a French houses, Italian buildings, American buildings have South America, North America of the points. The system architectural style and national, history, culture, and climate conditions about, is in the process of the development of the long-term formation. Door window is attached to the building, building form a complete set for the product, of course, also should be all kinds of. So why is there in our country at present this trend of the European single window situation? The author thinks that for three reasons:
First, the lack of design strength and processing power.
Each kind of type XinChuang from cavity design, hardware facilities, physical and mechanical properties of all should be in the design unification consideration, and our country at present the enterprise the strength and level design urgently needs to be strengthened and improve. In addition, mould and hardware accessories processing and foreign gap was obvious, it is restricted the Chinese system plastic doors and Windows of the development process.
Second, capital investment restrictions
To develop a window type need to input, as generic a window type economical, easy and save money, has no risk now, most enterprise development lack of money, make generic versions of quick practices to shortcut seizes the market. By introducing foreign mould terms, is also imitate each other, from Europe to the same company introduction of same series, the same mold cavity design, the lack of experience and judge the quality of ability, cause mould extrusion profiles import, are the same “face”. And, of course, can help the foreign technology and strength, but can’t ask them and we have the same experience and experience, for example or so push-pull window, screen window and tilt Windows up and down, foreign is not used in great quantities, so also did not accumulate experience, for them is a new problem only Chinese talents most understand their needs, so only by ourselves to form the system of plastic doors and Windows.
Third, from the macro analysis, plastic doors and Windows of the industry standard, national standard, the test items and methods is the European equivalent German standard (DIN18055, DIN4108, DIN4109) and RAL1/716 standards, and not absorb the United States and Canada the strengths of the standard.
UPVC doors and Windows industry in China it is really the USSR, and of great potential of the prairie, but avoid by all means, blind and repetitious construction, only the amount of attention has increased sharply, don’t pay attention to improve the quality, market competition is relentless, door window enterprise continuously add, also unceasingly eliminated.
German standard is foreign advanced standard, can be directly equivalent used or equivalent adopted, but doors and Windows, different from the general of industrial products, Germany doors and Windows in Germany’s standard, the United States, and Canada, the United States, Canada standard for Windows and doors, not to be American doors and Windows in Germany’s standards. China’s system plastic doors and Windows with German standard is equal to is not rational. The United States, Canada would implement different window of door of German standard.
Germany UPVC doors and Windows material of wall thickness is in 2.8 mm to 3.2 mm, within the cavity muscle less, and the enhancement of the muscle can accommodate cavity is bigger, only through on-the-spot investigation understood the reason German architecture. Generally speaking German architecture in China than small mouth humanly scaled relatively, but in China it is greater than the casement, single window wide about 1.0 m, 1.2 m high, and even a width of 1.0 m, 2.0 m high above the French window (than our standard door 0.8 m more wide), and is the open the window for flip, a mouth only humanly scaled a window. PVC the modulus of elasticity only 2500 MPa or so, so the big flat open casement to ensure that the mechanical properties and the performance of wind, must increase profile section and wall thickness can meet resistance moment of inertia and the design requirements. Our country building mouth most combined humanly scaled window, the mouth of the cave than Germany’s big, but the small than Germany casement. In view of this, through the reasonable design, profile wall thickness appropriate profile is less than Germany won’t affect the performance of the window. The United States, and Canada, Windows and doors profiles wall thickness are in the 1.8 mm to 2.0 mm or so, due to the unique cavity design and its performance CAN comply with the AAMA standards and Canada CAN standards. The window type beautiful dainty, widely applied in North America, very popular, and prove its advantage.
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