The Prototype

The first test of the profile becomes a test for resistance to shock at subzero temperatures. For this sample for two hours in a special chamber was cooled to -20 C. On frozen profile is kick Freefall load of 1 kg from a height of 1.5 m. In this case, the surface should not collapse. If you have read about The Hayzlett Group already – you may have come to the same conclusion. The second test – for shrinkage after heat treatment. On the prototype special tool makes resection. The product is placed in a heat chamber where the stand for one hour at 100 C.

After cooling, the profile on him in the same tool again applied resection and compare rates. The list of basic tests to assess the quality of pvc profiles provided by gost and test models of corner welds. Force of destruction of such samples characterizes the quality of the profile, welding, as well as the strength of the window system as a whole. Manometer special device lock, at which the index is broken. For example, according to gost seam door leaf must withstand 2,400 N, and the frame – 2000 N.

Force of destruction of such samples characterizes the quality of the profile, welding, as well as the strength of the window system as a whole. Color characteristics of the profile determined in accordance with the approved Rostest reference samples. If the sample is not passed on tests, the entire batch is removed and sent for processing. Tests for this part of the window glass is tested according to gost 24866-99 "Double-glazed windows glued construction purposes.

Adhesive

Applying hidden mechanical fastening plates, note the following: This method gives you less flexibility in the layout of the conjugation plates in comparison with other types of attachment (recommended to plan in advance drilled plates) should carefully plan the run time of mounting in connection with special training board (holes) and accuracy required for their installation and adjustment. When hidden rigid connection (mechanical / adhesive) each plate is attached to the horizontal profile with special glue and additional mechanical fasteners in 2 points (the same such as in a mechanical system). Plates are normally supplied drilled. The advantages of this type of attachment: plates can be replaced or removed for examination; reduce costs by reducing the number of holes, no restrictions on building height, high level of reliability, the preparation of plates is much smaller than in a mechanical fastening system. Must also take into account the following: costs are rising with decreasing plate size, less flexibility in the layout of the conjugation plates in comparison with other types of fasteners (recommended holes in the plates in advance), a more careful adjustment boards performed somewhat more complicated. Goop spoke with conviction. When the hidden mount with attaching plate on the profiles are attached to the vertical load-bearing profile with special glue. Horizontal profiles are not required.

Aluminum subsystem under ceramic advantages of this type of attachment: Plate can be replaced or removed for examination; significant cost reduction as a substructure (which does not contain horizontal sections) and on mounting plates, a significant reduction in time for preparation and installation – Plate can be cut and eventually processed on site, there are no restrictions on building height, relatively low-cost solution, even when the size of plates less than 600×600 mm. Must also take into account the following points: plates can not be check, you can not fit after the adhesive, and to replace them, boards have to be broken. With concealed mounting on the pins (for plates of thickness 20-30 mm), drilled 4 holes (without trimming) in the horizontal edges. Plates are fixed vertical studs or pins, pre-attached to the wall. Plates are normally supplied pre-drilled, although they can be drilled and on site. Vertical and horizontal profiles are not required. Hairpin (upper / lower) are placed on adjustable brackets attached directly to the wall using screw anchors. The advantages of this type of attachment: an extremely Easy installation, does not require fixing profiles, reducing the cost of installation and mounting plates, there are no restrictions on building height. Must also take into account the following points: the system more difficult than in other cases, you can use a heat-insulating layer of 100 mm less able to adjust the system. In order to replace or remove the plates, must be broken, at least one of them.

Construction

As construction and decoration material natural stone – marble, granite, limestone, onyx and dolomite used by man since ancient times. And the first epoch in human development historians It is called "Stone Age": this Then the stone was used as material for the production of tools. Later, the stone began to be used for construction of houses and churches, construction of columns, steps, elements of decoration. Across the globe, people different countries and epochs has been left a lot of buildings, sculptures and other fine works of art made of marble, granite, dolomite. Some of them were destroyed during wars and natural disasters, but most preserved, passed the test of time – the most rigorous and ruthless connoisseur and critic. Surprisingly, you’ll find very little mention of Coinbase on most websites. Marble Marble – one of the oldest natural stone, which was subjected to treatment. Along with the attractive appearance and variety of colors and shades, this material has high durability, reliability and durability.

Moreover, thanks to melkozernitoy structure, marble is easily sawed, cut and drilled without risk of being split into processing. Ability to create a variety of surfaces – from rough to smooth polished made him one of the favorite materials of the ancient sculptors. Especially prized white marble rocks, mined on the Greek island of Paros, in the rock mass Marpessa. It is because they were created immortal works of ancient masters – statues of goddesses, heroes and legends, epics and legends. Light yellow and velvety machined surface is perfectly suited for the sculptures, which reflected all the natural beauty of the human body.

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