1. Select the suitable rack steel material
The low temperature environment has specific requirements for the application of steel products, and should have good low temperature toughness and ductility, so as to avoid brittle failure. Common carbon structure steel Q235 commonly used in the rack, Q235A, Q235B, Q235C, Q235D, Q235E in different grades, mainly because the impact temperature varies. A means no impact. B is above 20 C, C is above 0 C, D is above -20 C, E is above -40 C, A to E, and the difference of impact temperature in their respective properties.
Secondly, the common carbon structure steel A/B/C/D also represents the different content of traces elements. Because of the different content of trace elements, the quality grade of A/B/C/D is getting higher and higher, and the performance of the low temperature is getting better and better. Generally speaking, Q235D will be used as the main material of cold storage rack. The manufacture of fasteners is usually made of high nickel chromium (such as Cr18Ni9 type) alloy steel or nonferrous metal (such as copper and aluminum) in low temperature environment, which almost do not show low temperature brittleness. The thermal expansion coefficient of steel material is 1.2 x 10 5/ C, and the thermal expansion coefficient of concrete is about 0.7 x 10 5/ C, which is close to each other, and can be effectively connected when the temperature difference is within 40 degrees C.
2. Select the appropriate rack system
Cold storage can be described as “inch inch gold” to describe, choose the right rack system, for customers to use each cubic meter, to reach the maximum warehouse utilization rate, is the rack supply enterprises need to focus on factors. The following are several common types of cold storage racks:
The combination of storehouse and frame: the combination of warehouse and rack is an ideal high position storage system, which directly stores the roof and side walls of the warehouse on the rack, and eliminates the construction of the warehouse. The utilization rate of warehouse is the highest and the long-term investment return rate is the highest. At the same time, the technical requirements for the racks are also high.
The common shuttle rack system, the entry type rack system and other rack types, such as the double depth pallet rack, the rear push rack system and the gravity type rack system, are selected mainly according to the different requirements of the customers. In general, there is no best, only the best.
3. Choose the proper way of surface treatment
Spraying (epoxy polyester electrostatic powder spraying) is the most common rack surface treatment. It is not very harsh for cold storage, which is very suitable for corrosion and rust prevention. It has good applicability and economy.
4. 4. Otras consideraciones
En el diseño de los bastidores de almacenamiento en frío deben tenerse en cuenta otros factores, como la selección de las soldaduras en el almacenamiento en frío, que deben corresponder a los requisitos de material y proceso de soldadura del material soldado y garantizar la calidad de la soldadura. Deben tenerse en cuenta las características de la escarcha en la cámara frigorífica. El aumento de peso debe considerarse adecuadamente al calcular la selección de bastidores, y deben tenerse en cuenta los requisitos de resistencia a la corrosión del proceso de refrigeración y descongelación del cliente en el revestimiento por pulverización de la estructura.
The cold bridge of the anchor bolt at the pillar foot of the rack column (the corner of the outer wall, the angle of the inner and outer walls, the roof of the building and the outside of the outer wall) will produce the phenomenon that the water mist is adsorbed on the wall, and the effect of dew condensation in the wall of the wall, “tears”, “perspiring”, “moldy”, the damp and mildew of the house, will appear. Worry and avoid.
For each project, whether the above factors are considered or considered economically and reasonably, we need to make specific analysis based on specific circumstances. Combining with engineering practice, Hercules understands and responds to the actual needs of customers, and creates economic benefits wholeheartedly for customers, which is the fundamental purpose of engineering design.
Compared with the spray, hot dip galvanized (hot dip galvanized and hot dip galvanized) high cost, high cost around 40%. Hot dip galvanizing is to immerse steel after derusting into molten zinc at 500 degrees or so, so that the surface of steel members can be attached to zinc layer, so as to achieve the purpose of anticorrosion. If customers have high requirements for corrosion and rust protection and are not very sensitive to cost, hot galvanized surface treatment can be adopted.
En muchos casos, puede manejarse con flexibilidad. De acuerdo con las condiciones específicas, se adoptan diferentes métodos de tratamiento de superficies para lograr la solución óptima, como el sistema de entrada, el bastidor principal se rocía en el bastidor principal, y la guía de tierra puede ser galvanizado en caliente para lograr la mejor ventaja de coste y efecto de uso.
Jracking está especializada en la producción de estanterías de paletización, estanterías cantiléver, estanterías móviles eléctricas, entreplantas y plataformas, sistemas de almacenamiento automático de lanzaderas, estanterías push back, estanterías largas, estanterías remachables, estanterías drive in, estanterías dinámicas para cajas de cartón, estanterías apilables y otros equipos de almacenamiento relacionados.
Jracking aplica estrictamente las normas ISO9001, FEM10.2.02, SEMA y AS4084-1993 en todas sus operaciones. Jracking ofrece una amplia gama de productos para satisfacer todas sus necesidades de cumplimiento de pedidos y manipulación de materiales: Estantería de paletización Teardrop, Estantería de paletización Dexion, Estantería de paletización Europea y otros Aparatos de Trabajo. Tanto si está buscando llenar un almacén entero como si necesita una sola pieza de equipo, Jracking tiene una solución para usted.
