◉ Conventional cable ladder type difference mainly lies in the material and shape, a variety of different materials and shapes correspond to a variety of different working conditions.
Generally speaking, the material of the cable ladder is basically the use of ordinary carbon structural steel Q235B, this material is easier to obtain and cheaper, more stable mechanical properties, surface treatment or coating effect is very good. And for some special working conditions, only to use other materials.
◉ Q235B material yield limit is 235MPA, the material has a low carbon content, also known as low carbon steel. Good toughness, more suitable for stretching and bending and other cold processing, welding performance is also very good. The side rails and crossbar of the cable ladder need to be bent to strengthen its rigidity, most of the two connections are also welded, this material is suitable for the working conditions of the cable ladder.
◉ In order to ensure that the product surface quality and corrosion resistance, general cable ladder if the use of mild steel production and manufacturing, but also need to carry out surface treatment. From the point of view of the use of the environment, most of the cable ladder is used in the outdoor, a very small part of the use of indoor. In this way, the carbon steel manufactured cable ladder will generally use hot-dip galvanized surface treatment, the zinc layer thickness is generally an average of 50 ~ 80 μm in the ordinary outdoor environment, according to a year to consume zinc layer thickness of 5 μm rate to calculate, can ensure that more than 10 years do not rust. Basically, it can meet the needs of most outdoor construction. If a longer period of corrosion protection is required, the thickness of the zinc layer needs to be increased.
◉ Used in the indoor environment of the cable ladder will generally use aluminum manufacturing, and aluminum cold bending processing and welding performance is poor, generally speaking, the side rails and the crossbar will use the mold extrusion molding way to process. The connection between the two will mostly use bolts or rivets to connect and fix, of course, some projects will also require the welding method for connection.
◉ Aluminum surface can resist corrosion, but generally speaking, in order to beautiful, aluminum made of cable ladder will be surface oxidation treatment. Aluminum oxidation surface corrosion resistance is very strong, basically indoor use can be guaranteed for more than 10 years will not appear corrosion phenomenon, even in the outdoor can also achieve this requirement.
◉ Stainless steel cable ladder cost is higher, suitable for some of the environment is more special working conditions. Such as ships, hospitals, airports, power plants, chemical industry and so on. According to the high and low requirements, respectively, SS304 or SS316 material. If you need to apply to a more severe environment, such as perennial seawater or chemical material erosion, you can use SS316 material to manufacture the cable ladder after the surface and then nickel-plated, can greatly increase the corrosion resistance.
◉ At present, the market in addition to the above mentioned materials and surface treatment, there are some more cold material, such as glass fiber reinforced plastic cable ladder, mainly used in some hidden fire protection project. This material has to be selected according to the project requirements.
◉ The above mentioned cable ladder material and surface treatment requirements, for reference only.
Post time: Aug-12-2024