What are the metrological verification units of aluminum profile extrusion press machine plant line?
In many cases, the model and specification of aluminum profile extrusion press machine plant line are all named according to its extrusion working pressure. That is, it is so clear why some people should confuse the model and specification of machinery and equipment. The reason is very simple. This is mainly because there are three units of quantity that can mean pressure. They are the international system of units, the project system of units and the British system. Their own letters mean different.
Among them, Mn is an international enterprise of trillion cattle, t is an engineering project enterprise ton, and ust is a British enterprise of us ton. Their relationship is 1MN = 1000000n = 100000Kg = 100t, 1t = 1.1ust. In other words, a 12.5mn extruder is a 1250t extruder; 880ust extruder is 800t extruder. Moreover, most of the grades of extruder tonnage increase by 1.25, that is, the extrusion pressure of the high-grade extruder is 25% higher than that of the low-grade extruder. What aspects are related to the production of aluminum profile extrusion press machine plant line?
Although different types of extruders are likely to have different hydraulic transmission systems and their spare parts, the basic principle of operation of the machine and equipment is the same. The working pressure of the master cylinder is concentrated on the extrusion rod in the extrusion process, and the extruded aluminum rod is formed according to the die shell. From the analysis of this basic principle, the extruder is divided into three parts: main cylinder, plate steel and extrusion rod. Each part is closely related to the final production of machinery and equipment. Under the condition of no scheduled shutdown period, the extrusion rate is the influencing factor. It is also related to the extrusion pressure of aluminum profile extrusion press machine plant line. Those with large extrusion pressure can be pressed smoothly when the billet temperature is low, so as to improve the production. There are also stamping dies involved. The friction between metal materials and die wall during extrusion can usually increase the temperature of aluminum alloy profiles by 35 ~ 62 ℃; There are also the characteristics of aluminum alloy profiles being extruded. The inlet and outlet temperature of aluminum profiles generally cannot exceed 540 ℃, otherwise the surface quality of raw materials will be reduced, the die mark will be significantly aggravated, and even aluminum sticking, gravure printing, micro gap, tearing and other conditions will occur, which will hinder the improvement of the honorary yield of aluminum profile extrusion press machine plant line.