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Broken bridge aluminum doors and windows insulation strips, to choose like this

Broken bridge aluminum doors and windows insulation strips, to choose like this

  • Categories:新闻中心
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  • Time of issue:2019-01-01 00:00
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(Summary description)

Broken bridge aluminum doors and windows insulation strips, to choose like this

(Summary description)

  • Categories:新闻中心
  • Author:
  • Origin:
  • Time of issue:2019-01-01 00:00
  • Views:
Information

Friends, did you make it? Insulation strips must be used for doors and windows at home! Broken bridge thermal insulation aluminum alloy is based on the traditional aluminum alloy, the original integrated profile is divided into two, and then the two separate parts are connected together by means of mechanical compounding by two thermal insulation strips, which is very practical Oh! Let's take a look at how to choose the material for the thermal insulation strips of broken aluminum doors and windows.

1. The role of heat insulation strips

The nature of the heat insulation strip determines that it must have both high strength and low conductivity, otherwise it will cause major quality hazards in insulated aluminum alloy doors, windows and curtain walls (insufficient strength will cause the insulation aluminum profile to break from the joint of the insulation strip) , Or lose the meaning of heat insulation (high conductivity, the heat insulation effect cannot be guaranteed), so the material selection and manufacturing process of the heat insulation strip are very critical.

2. Types of heat insulation strips

At present, there are mainly two types of thermal insulation strips used in the broken bridge aluminum doors and windows on the market, one is PA66GF25 thermal insulation strip, and the other is PVC thermal insulation strip.

1. PA66GF25 heat insulation strip: PA66 is a series of modified engineering plastic alloys. It has a high melting point, excellent heat resistance and self-extinguishing properties. However, the unmodified PA66 material does not match the aluminum alloy in terms of tensile strength and linear expansion coefficient. Through experiments, adding 25% glass fiber to PA66 is modified into engineering plastic as the basic material of the heat insulation strip. It is the best. At present, there is no new material for insulation strip that is more reasonable and economical than this one.

2. PVC heat insulation strip: the main raw material is PVC resin powder plus 25% calcium carbonate.

The difference between the two:

1: Tensile strength

PA66GF25 heat insulation strip>126N/mm

PVC heat insulation strip around 70N/mm

2: Heat distortion temperature:

PA66GF25 insulation strip 240 degrees

PVC insulation strip 90 degrees

3: Aging resistance:

PA66GF25 heat insulation strip is durable and not easy to age

PVC heat insulation strips are easy to age

4: Expansion coefficient:

PA66GF25 insulation strip has the same linear expansion coefficient as aluminum alloy

The linear expansion coefficient of PVC heat insulation strip and aluminum alloy is very different

Three: How to identify

1. Looking at the gloss, the surface of the PA66GF25 heat insulation strip of the broken bridge aluminum window is a frosted texture, and the color is anti-black; but the PVC heat insulation strip looks smooth, shiny, and the color is white. The two can be clearly distinguished by comparing them together.

2. Another point is that PA66GF25 heat insulation strips are not combustible. PVC heat insulation strips will burn after ignited for a while and you will see a small flame, and there will generally be a smell of plastic.

3. PA66GF25 insulation strip will break once or twice, while PVC insulation strip needs to be folded more than ten times before it breaks.

4. When the PA66GF25 heat insulation strip is broken, the sound is clear and crisp, and the fracture is neat and not deformed after being broken, and it can be restored by butting. After the PVC heat insulation strip is broken, the fracture is white and deformed.

Tianjin Ruifeng Rubber and Plastic Products Co., Ltd. has been producing heat insulation strips for many years. Choose real PA66GF25 heat insulation strips to Tianjin Ruifeng Rubber and Plastic Products Co., Ltd., 15922244128.

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