Sliding doors (also known as sliding doors, sliding doors) hardware from the structural point of view, regardless of brand name, its structure is similar. However, hardware and other accessories from the point of view can reflect the grade and the difference, often with better hardware and accessories brand sliding door is more expensive, on the contrary, the more cheap sliding door in the hardware of these easy People ignore the place to spend less time.

Slide the main structure of the door constitute: mullioned, on the rail, the next rail, on the horizontal frame, the next horizontal frame, the sub-shelves, the upper and lower pulleys, the core board, bumper, locator

Sliding door material main material: stainless steel, aluminum, other alloys, and now in addition to low-grade sliding door brand is still using stainless steel as the border, almost all use aluminum, or alloy.

Surface treatment: paint, galvanized (chrome), PVC cladding, veneer veneer

The main specifications of the sliding door material: the upper and lower rails 6 m / root, the upper and lower cross / middle 4.88 m / root, mullion 4.88 / root glass: 1830 mm * 2400 mm 1600 mm * 2400 mm Wave plate: 2440 mm wide 130㎜ Cabinet plate: 1220 * 2440 sliding door aluminum Category GB aluminum: high-quality aluminum ingot by adding a certain amount of magnesium made. To be used as sliding door frame quality aluminum, for example, the aluminum grade 5019 aluminum alloy, according to national standards, the chemical composition of magnesium content should be 4.5% or more, hardness, toughness, not easy to oxidation, long lasting. Non-standard aluminum: made of waste recycled aluminum, the toughness of the aluminum alloy is poor, not enough hardness, deformation and cracking deformation and oxidation, short life.

Sliding door profiles aluminum quality is the main indicator of quality

1, profile aluminum: whether the national standard aluminum, direct product quality and cost / the current market a lot of non-standard recycling of aluminum, the appearance of ordinary consumers treated naked can not be discriminated.

2, the wall thickness (cross section): be sure to choose its cross-cut thickness of 1.2MM or more products. The minimum nominal wall thickness of doors and windows shall be not less than 1.20 mm. The minimum measured wall thickness of aluminum alloy profiles for exterior doors and windows shall meet the requirements of GB / T 8478 and GB / T 8479, respectively.

3, surface treatment: lacquer is smooth, PVC samples are foaming peeling phenomenon. Sliding door pulley: Sliding wheel is one of the most core components of the sliding door, which directly determines the service life and sliding effect of the sliding door. A good sliding door brand will not take it lightly on the sliding wheel. The quality of the sliding wheel depends mainly on the quality What is the quality of the bearing and rim material on the pulley? Currently a good sliding door brand will use a large bearing wheel and the resistance of nylon wheels.