2014年5月22日星期四

What are the benefits of non-woven fabric awning installed


Non-woven fabric awning installation benefits
There are many options now awning electric awning , retractable awnings , parasols , watermelon Peng, Peng fixed . Non-woven fabrics are , here to see what they have advantages:
        First, the good energy saving effect. Currently widely adopted interior shade is a valid way of shade , UV glass shines through the blinds , turn the fabric or metal curtain into a heat source , the actual heat has entered the room . Inside sunshade can block heat, strong ultraviolet rays for the first time in the outdoors, insulation and installation of energy-saving effect of the glass curtain inside different results .
 
        Second, the excellent economic results. Shading techniques using small investment , the effect is obvious.
 
        Third , artistic . By selecting the external awning material improvements and colors, building facades also are becoming rich layers , beautiful appearance. It can be said , shading techniques are architectural features and architectural form highly uniform .
 
 Little knowledge shade
 
Building exterior shading forms: window ; roof ; wall ; greening .
 
Fabric advantages:
       1 passed the indoor heat from 60 % to 30%
 
      2 twill ease of indoor natural lighting glare ( openings , daylight factor is consistent , uniform illumination , soft light. )
 
      3 . Introduce moderate natural light , to reach a comfortable visual environment .
 
      4 . The most primitive protection of privacy.
 
      5 high permeability , easy viewing.
 
      6 . Reduce air conditioning load of more than 60 %.
 
Woven exterior shading devices overall advantages : 1 energy-saving insulation , two indoor lighting to improve the softness , the three tenants to protect the secrecy and security.
 
Fabric orientation options:
              West - 1% , 3% or curtain fabric transparent trial - to avoid glare
 
              North - 10% colored fabric or curtain
 
Fixed : cornice ; sun visors ; fixed blinds and so on. Advantages: cheap ; Disadvantages: not flexible.
 
Electric : Electric blinds ; electric fabric ; electric flap and so on.
Advantages : less shading coefficient of less than aluminum metal can . Disadvantages: high prices.
 
Components: curtain + drive + skeleton
 
Window shade forms: fixed ( horizontal, vertical , bezel ) Cons: lighting, ventilation , heating in winter , vision and other inconveniences ; activities ( roller blinds, venetian activities , non-woven awning, veil ) Advantages: each shutter to use window blinds to adjust the angle of light and ventilation activities , see the veil block radiation regulate the amount of light entering ; center ( double glazing ) ;

2014年5月15日星期四

Mainly Introduction of the Honeycomb Core Application and Making


Aerospace, yacht and motor racing designers use the phrase ‘Build lightness into your design’. Our honeycomb sandwich enables a designer to do just that. The honeycomb form provides stiffness, strength and light weight, whilst still offering a degree of flexibility. The technical terms for this are ‘high out-of-plane shear strength’ and ‘high out-of-plane compression properties’ in relation to other design options.

Besides aerospace, yacht, ship and motor sport, the outstanding performance that this structural design offers is used wherever there lightweight but strong bulkheads, doors and partitions are needed. Low cost, low weight interior doors are made from a simple wooden frame, cardboard honeycomb and wood veneers.

In the trucking industry, using honeycomb material in a 53’ trailer can reduce its weight by almost 1.5 tons, saving over 1% in fuel costs.

Metal honeycomb offers safety features too. Explosion-proof fuel tanks have used metal honeycomb.

The first recorded use for industrial honeycomb in a sandwich structure was in 1915 by Hugo Junkers who founded the German airplane company of that name. In 1938 an adhesive with the right viscosity to form resin fillets on the honeycomb core was patented. This led the way to modern sandwich panel designs.

When you look at honeycomb core honeycomb core , it looks as if it might be difficult to fabricate, but there are three main methods in use today: expansion, corrugation and molding. The three materials most commonly used are thermoplastics, paper/aramid and a variety of metals including aluminium, stainless steel and even titanium.

Molding is probably the simplest to envision (and make at home), best suited to thermoplastics. Thermoplastics can also be extruded as pipes and sliced, and the latest technique offers continuous extrusion and bonding to a sheet – co-extrusion.

Expansion is simple too. Sheets of the material are laid down with lines of adhesive between them. When the adhesive has cured, the block  (known as HOBE – honeycomb before extraction) is sliced and the sheets are pulled apart, resulting in the honeycomb. Think of an expanding paper chain – that’s the basic principle. Instead of lines of adhesive, welds can be used for metals sheets.

General Dynamics has announced an external airplane fuel tank design which uses a honeycomb coremade of urethane foam-filled aramid and an all composite shell. This all-composite construction delivers the structural stiffness needed for aircraft carrier survivability requirements and will replace the metal honeycomb tanks which came into use following a disastrous fire on the USS Forrestal.