The importance of ethylene-propylene diene seal strips in doors and Windows:

One, the importance of material

Now most energy-saving Windows and doors use EPDM material, EPDM is ethylene, propylene and a small amount of the third monomer copolymer, EPDM international name abbreviation for EPDM, EPDM rubber has excellent resistance to sunlight ultraviolet ray, weatherability, the service life of the sync with doors and Windows), heat ageing, high and low temperature resistance, ozone resistance, chemical resistance, water resistance, good electrical flange and elasticity, as well as other physical and mechanical properties. Also known as crack free rubber, is the world's recognized production of sealing products material.

The importance of design ability

Adjust formula, according to the formula of the physical properties (such as hardness, compression rate), with qualitative and quantitative theoretical design of the sealing strip mold, this is very important, otherwise it is a good rubber without reasonable shape design, and not very good play to the advantages of EPDM, such as design a pressure sealing strip, the first window profiles and samples to measure, understand the profile of the system structure and the degree of profile with hardware, measure measured values, if you need to make up for the defect of profiles with hardware, will make up for the defect quantity considering the design flow, and then according to the property value of the rubber, optimization design, Optimized design in non-critical locations can reduce the weight of meters in order to achieve the goal of reducing the customer's cost. A lot of design ability is weak manufacturer, do not understand door window system, blindly copy and do not consider profile and hardware cooperate amount, the sealing strip that designs, cannot complete door window sealing performance very well, just resemble the effect of adornment strip. To door window manufacturer caused great economic and reputational loss.

The importance of dimensional tolerance

Completes the design of the sealing strip, just to ensure product quality, the basic start of dimensional tolerance control is to measure a manufacturer production of high technical ability, low standard of important, each batch of qualified products, generally with the naked eye and is feeling less than the size of the difference, feel still has a lot of sealing strip size is differ, the market now can see with the naked eye, directly with feel is pulled out, so the size of the uneven loaded on the doors and Windows, there will be some places, some pine, there is crack sealing strip and profiles in some places, or simply for a period of time after sealing strip fall off your profile, Most heat energy of such door window is scattered lost through aperture, how can make door window have fine 3 sex standard and the performance of energy-saving heat preservation? A lot of window of energy-saving door appear leak circumstance, have very big concern with this reason. High production technical capacity of the manufacturers, generally implement a strict quality system, is to measure the key dimensions of the product, the production of products, the staff focus on measurement, control these key dimensions.