What are the physical properties and thermal insulation and energy saving properties of plastic stee

Physical properties of plastic steel doors and windows. The physical properties of PVC doors and windows mainly refer to: air permeability (air tightness), rainwater leakage (water tightness), wind pressure resistance, thermal insulation and sound insulation properties of PVC plastic steel doors and windows.

Plastic steel doors and windows are generally made of multi-cavity structure, and even when installed, all the gaps are equipped with door and window sealing strips and wool strips. Therefore, the physical properties of plastic steel doors and windows are very good. Insulation and energy-saving performance of plastic steel doors and windows.

Also because plastic steel doors and windows are generally made of multi-cavity structure, so seriously reduce its own thermal conductivity performance, finished plastic steel doors and windows, its thermal conductivity is only 1 357 of steel, 1 250 aluminum, if there is indoor heating in winter, plastic steel doors and windows can play an effective thermal insulation effect, but also save energy consumption. Plastic steel doors and windows are made of polyvinyl chloride (UPVC) resin as the main raw material, plus a certain proportion of stabilizers, colorants, fillers, ultraviolet absorbers, etc., through extrusion of the molding material, and then by cutting, welding or screwing to make door and window frame sashes, equipped with sealing strips, wool tops, hardware, etc., at the same time, in order to enhance the rigidity of the profile, more than a certain length of the profile cavity needs to be filled with steel lining (reinforcing ribs), so that the portal window made is called plastic steel doors and windows, thermal insulation and energy saving.

Plastic steel doors and windows are an important part of the building maintenance structure, and the doors and windows installed in residential buildings are usually divided into four types: wooden doors and windows, iron doors and windows, aluminum alloy doors and windows, and plastic steel doors and windows. Plastic steel doors and windows are a new type of energy-saving building doors and windows that have just been developed. The use of plastic steel doors and windows, the indoor heat outflow loss is much less than that of doors and windows of other materials, and the energy-saving and thermal insulation effect is very significant.

The plastic steel doors and windows are made of UPVC material, lined with carbon steel keel, extruded, cut, welded, and made of hardware and rubber sealing strips. Because it is lined with carbon steel keel, it gets its name. Plastic steel doors and windows not only combine the advantages of the previous doors and windows, but also are better.

Plastic steel doors and windows are light and clean, flexible to open, simple and generous in appearance, anti-aging, and the life of high-quality plastic steel doors and windows can be as long as more than 30 years. In addition, plastic steel doors and windows also have the characteristics of flame retardant, high strength and super sealing. A simple way for users to identify the quality of plastic steel doors and windows.

The main test items of energy-saving and thermal insulation of plastic steel doors and windows are the thermal insulation performance test of doors and windows, as well as the airtightness, watertightness and wind pressure test of doors and windows, which are collectively referred to as the thermophysical performance testing of doors and windows, and there is a small item, called anti-condensation factor, which is also a routine test item.

Plastic doors and windows are a fashionable and beautiful, machinable type of doors and windows, when choosing doors and windows, people will pay attention to the thermal insulation performance of plastic doors and windows. Today, PCHOUSE will answer them for you one by one.

1. The thermal insulation performance of plastic doors and windows is relatively good. Under the condition that there is an air temperature difference on both sides of plastic doors and windows, the heat transfer of plastic doors and windows is worse than that of aluminum alloy and other metal materials, and plastic doors and windows can resist the ability to transfer heat from the high temperature side to the low temperature side. The thermal insulation performance of doors and windows is generally expressed by heat transfer coefficient or heat transfer resistance.

2. Plastic door skin guess window insulation. Compared with aluminum alloy and other metal doors and windows, the thermal conductivity of plastic doors and windows is relatively small, so its thermal conductivity is relatively poor, so it has good thermal insulation and thermal insulation performance.

3. Plastic doors and windows are basically made of plastic special-shaped materials, and this type of material is mixed with more air, and the air has good thermal insulation and thermal insulation performance, so this increases the ability of plastic doors and windows to keep warm and insulated.

Summary. Hello according to your questions for your answer, plastic steel doors and windows have good thermal insulation: the plastic thermal conductivity in the aluminum-plastic composite profile is low, the thermal insulation effect is 1250 times better than aluminum, plus there is good air tightness, in the cold area, although the outdoor is dozens of degrees below zero, the indoor is another world.

2. Good air tightness of plastic steel doors and windows: multiple sealing strips or rubber strips are installed at each gap of aluminum-plastic composite windows, and the air tightness is first-class, which can give full play to the air conditioning effect and save 50% of energy.

Hello dear! I have seen your question here, and I am trying to sort out the answer, and I will get back to you in five minutes, please wait a moment! ^

Hello according to your questions for you to answer about plastic steel windows and assertion of the large acres of bridge aluminum windows, if only from the effect of thermal insulation to consider, for the same type of plastic steel windows and broken imitation early bridge aluminum windows, the performance of plastic steel windows is indeed better. Carry the forest".

Hello according to your questions for you to answer the performance characteristics of plastic steel doors and windows: 1, plastic steel doors and windows have a good appearance, 2, plastic steel doors and windows sound insulation performance, 3The air tightness of plastic steel doors and windows is destroyed, 4, the insulation performance of plastic steel doors and windows, 5, the fire resistance of plastic steel doors and windows, 6, the amenity resistance of plastic steel doors and windows, 7, the corrosion resistance of plastic steel doors and windows, 8, the physical properties of plastic steel doors and windows, 9, the insulation and energy-saving performance of plastic steel doors and windows.

Hello according to your questions for your answer, plastic Qinhao steel doors and windows have good thermal insulation: the plastic thermal conductivity in the aluminum-plastic composite profile is low, the thermal insulation effect is 1250 times better than that of aluminum, plus there is a good air tightness of the socks and leads, in the cold area, although the outdoor is dozens of degrees below zero, the indoor is another world. 2. Good airtightness of plastic steel doors and windows

Each gap of the aluminum-plastic composite window is equipped with multiple sealing strips or rubber strips, and the air tightness is first-class, which can give full play to the air conditioning effect and save 50% of energy.

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Aluminum alloy doors and windows are better, or plastic steel doors and windows are better, it must be judged by comparison.

First of all, in terms of texture and strength, with the improvement of industrial technology, the strength of the two is now about the same, so the strength can be good;

Secondly, in terms of durability, plastic steel doors and windows are easy to age when heated, and the service life will be relatively short, and the durability is not high; Aluminum alloy doors and windows have high durability due to the advantages of aluminum alloy materials, but it is necessary to pay attention to avoid the corrosion of some non-aluminum alloy parts by rain, so that aluminum alloy doors and windows can be used for a long time;

Third, in terms of color appearance, the current surface treatment process has made the color appearance of the two not much different, almost aluminum alloy plastic steel also has;

Fourth, in terms of sealing and thermal insulation performance, plastic steel doors and windows are naturally one layer higher than aluminum alloy doors and windows, aluminum alloy is metal, and the thermal conductivity is relatively good, so it heats up quickly and cools quickly, and the heat retention is not very good. Aluminum alloy is generally spliced process, so the sealing may not be as good as plastic steel doors and windows.

Fifth, in terms of fire performance, aluminum alloy is slightly better than plastic steel doors and windows, so it is recommended to use aluminum alloy materials in the case of high fire protection requirements;

Sixth, in terms of sound insulation, the sound barrier of metal is better than that of plastic, but the sound insulation effect of ordinary aluminum alloy doors and windows is average. The air sound insulation reaches 30-40db. In terms of sound insulation performance, aluminum alloy is a little better, and broken bridge aluminum is much better.

Seventh, in terms of waterproofing, the broken bridge aluminum window plans a drainage system with a special structure according to the principle of pressure balance, and the inclined plane is stepped down to plan, with drainage outlets and smooth drainage.

Eighth, in terms of anti-theft, the high-strength structure of aluminum alloy is not easy to be pried, which is better than plastic steel doors and windows. Finally, on the top, plastic steel doors and windows are more cost-effective than aluminum alloy doors and windows.

Therefore, the question of whether it is better to use aluminum alloy doors and windows or plastic steel doors and windows should be comprehensively considered according to the specific situation of the renovated house in the south or north, rainy or long sun exposure time, fire prevention or moisture-proof, and finally choose.

First, the service life.

When we choose windows and doors, the first question to answer is who is more durable. The plastic steel door is made of PVC material, which is easy to break inside and tarnish on the surface under the irradiation of sunlight; Aluminum alloy is sun-resistant and oxidation-resistant, and has a longer service life.

plastic steel door and window materials win).

Second, the decoration effect.

Most of the plastic steel doors are white, and the color change effect is not good, which is difficult to meet the individual needs of the owners. There are three common colors of aluminum alloy, and it is easy to change the color, Shenzhen can make two colors inside and outside, the outer color adapts to the exterior wall color, and the inner color adapts to the living room decoration, and the decoration effect is better.

plastic steel door and window materials win).

3. Stability of use.

The phenomenon of thermal expansion and cold contraction of plastic steel doors and windows is more obvious, deformed when heated, brittle when cold, and the size often changes during use, affecting the opening and closing; Aluminum alloy doors and windows are not sensitive to temperature changes, and their performance is relatively stable.

plastic steel door and window materials win).

Fourth, the fire prevention effect.

The flammability of plastic steel doors and windows and aluminum alloy doors and windows is low, and they have a good fire prevention effect, but plastic steel doors and windows are easy to deform when heated, and the fire protection effect of aluminum alloy is better.

plastic steel door and window materials win).

5. Lightning protection and electrical conduction.

Aluminum is a good conductor, as long as the peripheral building can be effectively grounded, it can be lightning protection and anti-static. The PVC plastic used in plastic steel doors and windows is an insulator, which cannot solve the problem of side lightning protection when used in high-rise buildings.

plastic steel door and window materials win).

6. Light transmittance.

The door frame of plastic steel doors and windows is 10 percentage points larger than that of aluminum alloy doors, so the vision of plastic steel doors and windows is relatively poor.

Aluminum alloy door and window materials win).

7. Intensity. The PVC material of plastic steel doors and windows determines that its strength is much worse than that of aluminum alloy doors, even if the strength is increased, but the compression resistance and water tightness are still not as good as aluminum alloy doors.

Aluminum alloy doors and windows win).

8. Sound insulation effect.

The sealing properties of the two materials are almost the same, so the sound insulation effect is also comparable, and the two are used with laminated insulating glass, and the sound insulation effect is leveraged.

9. Tightness.

Plastic steel doors and windows are welded by various parts, and the air tightness should be better than that of aluminum alloy doors and windows combined with screws, but the size of aluminum alloy doors and windows combined by screws is more accurate, and the frame and fan are better matched, so the sealing of the two is about the same.

The above two aspects, the two are equal).

10. Heat retention.

The heat transfer coefficient of plastic steel doors and windows is low in aluminum alloy, and in terms of thermal insulation performance, plastic steel doors and windows are higher than aluminum alloy, so now home decoration uses aluminum alloy as a frame and plastic steel as a window sash.

Insulating plastic steel doors and windows).

Which is better and which is bad, I believe you guys should know it in your hearts.

Which is better, aluminum alloy doors and windows or plastic steel doors and windows?

In fact, depending on the use rate, it is not said that the doors and windows must be good, each has its own advantages and disadvantages, from the perspective of development and replacement, the early plastic steel has been eliminated because of quality problems, and replaced by broken bridge aluminum alloy, it is taken for granted that aluminum alloy is better than plastic steel, which is not right.

Since it comes to plastic steel, it is first necessary to explain that the plastic steel eliminated in the last century is not the same thing as the existing plastic steel, the market is not standardized around the 70s, and the bad manufacturers add calcium carbonate as a filler to the PVC plastic material in order to reduce the cost pressure, and it is conceivable what the effect of this material is, aging deformation, air leakage and water leakage, and finally the market is messed up and withdrawn from the market. It has not been eliminated until now, and it can be said that the lesson is far-reaching.

Development to now, in fact, plastic steel has been completely changed, the product itself is no problem, but there is a scope of application, said so much, are defending plastic steel, but in fact, I am aluminum alloy doors and windows research and development, I will talk about the advantages and disadvantages of plastic steel and aluminum alloy.

Plastic steel is now basically used in the north, why, according to China's building thermal division, the north belongs to the cold and cold region, there are requirements for the heat transfer coefficient of building components, and the insulation coefficient of doors and windows is high, for example, Beijing requires the K value of external windows to be lower, which is more advantageous on plastic steel, because to achieve the same k value, the cost of plastic steel will be much cheaper than other window types, which is the advantage of materials.

Production efficiency, plastic steel has basically achieved mechanized automatic production, high production efficiency, low cost, aluminum alloy is still in the process of upgrading, upgrading to the automatic production line there is still a way to go, the production efficiency can not reach the level of plastic steel, labor costs are relatively high.

However, plastic steel also has disadvantages, the inherent impression of consumers mentioned above is one of them, cheap is not good, in fact, now a better plastic steel is not cheap; Color, the appearance color of PVC is always not comparable to aluminum alloy, take the PVC profile compared with the surface of aluminum alloy fluorocarbon, porcelain swimming, consumers can naturally feel which quality is better, of course, means high;

Which window material is good for indoor insulation Analysis of the advantages and disadvantages of plastic steel PK aluminum alloy.

In autumn and winter, the indoor temperature is higher than the outdoor temperature, in order to prevent indoor temperature loss and outdoor cold invasion (such as air leakage, etc.), the heat dissipation and thermal insulation function of the window plays an important role, and the window frame material, glass thickness, sealing degree and even the shape of the window determine whether it can let you spend a warm winter.

How can window frames be more hardy?

Priority is given to broken bridge aluminum alloy.

If classified according to the material of the window frame, the current aluminum alloy window and plastic steel window are the two common mainstream windows. It separates the indoor and outdoor two layers of aluminum alloy and closely connects them into a whole, constituting a new heat-insulating aluminum profile, improving the thermal insulation performance of the bed, and its air tightness is better than any aluminum and plastic windows, which can ensure that the indoor window sill and floor in the area with large wind and sand are dust-free.

The plastic steel frame can be added with a layer of plastic.

The disadvantage of plastic steel frame is that it is easy to breathe through after a long time, and the gap at the interface is too large to be bonded. At this time, the best way is to paste a sponge around the window, and then cover the whole window with plastic, which absorbs heat and is impermeable to the wind, and the temperature is well maintained.

Pay attention to the quality of the lacquer of the aluminum-clad wooden frame.

The aluminum-wood window is wrapped with a layer of aluminum alloy in addition to the solid wood, which makes the doors and windows more sealed, can effectively block the invasion of wind and sand, and will not freeze and condense in the cold winter, and can also keep the noise out of the window. However, the maintenance of wood requires more thought, especially the quality of the paint of the wooden frame to avoid corrosion and air leakage.

How can glass be more insulated?

Vacuum glass is preferred.

Vacuum is similar to insulating glass, but the thermal insulation performance is better than that of insulating glass, because the two pieces of flat glass in the middle of the vacuum glass are sealed around the perimeter, the gap is pumped into a vacuum and the exhaust hole is sealed, and the gap between the two pieces of glass is smaller than that of insulating glass, and the thermal insulation effect is very good, but it is more expensive.

Insulating glass needs to be sealed with double channels.