Created on 08.07
What is Galvanized Steel Pipe Slide
On the outdoor playground, children's park and kindergarten, we often see a kind of children's slide with stable structure and long service time. The industry and users call it "galvanized steel pipe slide" collectively. This name is not accidental, but accurately describes the main frame material of its process - the galvanized steel pipe processed by certain special process technology. This kind of slide has become the standard equipment of modern outdoor playground equipment due to the perfect combination of material performance and engineering application, which is a revolutionary and breakthrough development in the safety and service life of children's playground equipment.
Material
The key to the material of galvanized steel pipe slides lies in the fact that the load-bearing frame system of slides is made of steel pipes with hot-dip galvanizing process technology. Hot-dip plating is a mature anti-corrosion technology of metals. It refers to the immersion of steel pipes into molten zinc to form a composite coating on the surface of steel pipes, which is composed of zinc-iron alloy layer and pure zinc layer. This coating structure confers steel with super protection ability: the electrochemical activity of zinc is larger than that of iron. When the coating of steel is scratched and damaged, zinc will be corroded first, and the inner steel will be protected from being corroded. This is the "sacrificial anode protection" principle. At the same time, the coating spreads evenly on the inner and outer surfaces of the steel pipe, including the complicated connection parts of the steel, forming a total protection anti-corrosion. It is just this material property that has solved the problem of early slides being easily rusted and short service life when using ordinary steel pipes. Since the third generation of slides were fully popularized with the technology of galvanized steel pipe in 2008, and combined with high temperature electrostatic spraying surface treatment, the weather resistance and service life of slides have made a qualitative leap, and they have become the best solution to the complex outdoor environment (such as rain, ultraviolet rays, salt spray erosion, etc.) .
Structural Design
The main supporting structure of the slide, including columns and main frame, generally use galvanized steel pipes with larger diameter (such as Φ114mm or Φ89mm), and moderate wall thickness to construct the main skeleton of the slide. These main components have undergone detailed calculation analysis to ensure that the maximum dynamic load and long-term fatigue stress caused by hundreds of children climbing on the slide at the same time are fully considered, and the structural strength is reliable. Other components such as handrails and railings use galvanized steel pipes with smaller diameter (such as Φ28mm to Φ48mm), which meet the requirements of safety protection while improving the overall weight and cost. Galvanized steel pipes have high strength-to-weight ratio and good welding and mechanical processing performance. They can be bent and cut into any required shape to form the curves of slides, and be produced and installed conveniently through modular design. The balance of strength, toughness and processability of galvanized steel pipes create the basis for the safety design of the slide - not only can it ensure the structural strength of the slide, but also meet the requirements of children's comfort when using slides through the design of smooth corners and safety guardrails.
Safety Standard
Safety is the life of children's amusement park facilities, and galvanized steel pipe slides show its advantages in safety. The material performance and processing technology of galvanized steel pipes are well coordinated with domestic and international safety standards, such as the requirements for structural strength, anti-corrosion performance and surface quality of structural components specified in China's GB/T 27689-2011 "Children's Slide for Non-Powered playground equipment". The high yield strength and tensile strength of galvanized steel pipes can pass the load-bearing test. The smooth surface of galvanized steel pipes can be polished and powder coated, which basically eliminate the possibility of burrs and sharp edges. The wear resistance of galvanized layer itself reduces the loss of surface material caused by high frequency use. The strict salt spray test (in accordance with the GB/T 1771-2007 standard), load-bearing capacity test and coating adhesion test have also been conducted to apply in the real environment. These contents together construct a line of safety, making the galvanized steel pipe slides preferred by schools, community managers and household users.
Industry Application Value
The popularity of galvanized steel pipe slides is the result of the joint effort of materials and engineering experience and user demand.Wooden slides will rot and need maintenance, plastic slides are not very strong and durable, stainless steel slides are very expensive, but galvanized steel pipes are the safest and most durable in terms of weather erosion, service life (life of 5-10 years, usually about 10 years), and life cycle cost (reasonable purchase and easy maintenance).
Its name contains some information about materials, which are professional for the buyers to find out the value information - standardized product that can resist erosion outdoors, ensure the safety of children and durable. This logic of naming for children's playground based on material properties has not only become an industrial term, but also formed a category concept in users' minds that "galvanized steel pipes = a reliable slide", an indispensable part of public recreational Spaces.Take galvanized steel pipes as the main frame and use scientific structure and standardized safety to solve the problem of corrosion, strength and maintenance of outdoor facilities for a long time.