Aluminum alloy ladder Open the ladder and take a look. If the ladder creaks as soon as it is opened, it is definitely not a good ladder. A good ladder opens and closes When the ladder is opened, there is no sound. When the ladder is opened, can the level be upright, such as shaking, check whether there are long and short feet, you can also check the materials and workmanship of the accessories, and the quality of the ladder interface.
Aluminum alloy folding ladder is made of high-strength aluminum alloy profile; weight Light; easy to carry; advanced square tube squeezing riveting technology, good safety; and equipped with strong non-slip ladder feet. The work that needs to be prepared before buying a ladder is to ensure that all rivets, bolts, nuts and movable parts are tightly connected, the ladder column and the steps are firm and reliable, and the extension circlips and hinges are in good working condition. Aluminum alloy has low density but relatively high strength, which is close to or exceeds that of high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is widely used in industry and its usage is second only to steel. . According to the processing method, aluminum alloy can be divided into deformed aluminum alloy and cast aluminum alloy.
Aluminum alloy ladder deformed aluminum alloy is divided into non-heat-treatable reinforced aluminum alloy and heat-treatable reinforced aluminum alloy . The non-heat-treatable strengthened type cannot be improved by heat treatment, but can only be strengthened by cold working deformation. It mainly includes high-purity aluminum, industrial high-purity aluminum, industrial pure aluminum, and rust-proof aluminum. The angle between a single ladder or an extension ladder and the ground is about 75 degrees, and the length from the bottom of the ladder to the vertical support point is about one-fourth of the working length. Clean the ladder regularly to prevent certain chemicals from corroding the surface of the ladder.
Check the connection part regularly, and add lubricating oil if necessary; bad environmental conditions will reduce the ladder’s Service life, generally speaking, its service life is 2 years indoors and 1 year outdoors. Aluminum stents are easily soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solutions, but hardly soluble in water. The relative density is 2.70. Melting point is 660°C. The boiling point is 2327°C. Aluminum is inThe content of the earth's crust is second only to oxygen and silicon, ranking third, and it is a rich metal element in the earth's crust.
The price of aluminum alloy ladder has a great influence on its brand, and the price of high-quality brand stairs will be relatively expensive. There are also various brands of aluminum stairs. Different brands have very different prices. It is appropriate to choose a more suitable brand according to the needs of your home. Stair materials must be safe to use, especially aluminum alloy stairs. In product selection, it is advisable to use double-tube material and footing material to ensure anti-slip, safety and durability.