Two kinds of extrusion process characteristics of aluminum profile extrusion press machine plant line are introduced: 1. Hot extrusion process characteristics of aluminum profile extrusion machine: 1) Hot extrusion is an early extrusion technology used in several extrusion processes. It is used to carry out various extrusion forming of metal under the hot forging temperature with the help of the characteristics of good material plasticity, and is widely used to produce pipes and profiles of aluminum, copper and other non-ferrous metals, which belongs to the metallurgical industry. 2) Hot extrusion features: 1. The extrusion process is relatively simple, one extrusion molding, less processing procedures (only six types of equipment are required to complete the finished products of the profile), and the production efficiency is relatively stable. 2. Save raw materials and machining time. 3. The extruded products are of good quality and high precision. 4. The extrusion force is small, and products with high strength and large size can be extruded. As its name implies, the aluminum extrusion press is mainly a machine for extruding aluminum. In 2018, a new frame type extrusion structure was developed, with an extrusion rate of 3-5 times higher than that of the previous old style extrusion. The output of profiles can be extruded about 12 tons in 12 hours. Italy and Germany have integrated the above advantages and perfect after-sales service, which has also been unanimously praised by more than 500 users. It has always delivered goods on schedule according to the contract, with a production cycle of more than 90 days, free installation and debugging, and lifelong maintenance. 2、 Features of aluminum cold extrusion process: 1) Cold extrusion is one of the processing processes for parts without chips and with few chips. It refers to putting metal blanks into the mold cavity under cold state, and forcing metal to extrude from the mold cavity under strong pressure and certain speed, so as to obtain the required shape, size and mechanical properties of the extrusion parts. 2) Cold extrusion features: 1. Save raw materials. 2. Improve labor productivity. 3. The workpiece can obtain ideal surface roughness and dimensional accuracy. 4. Improve the mechanical properties of parts. 5. Complex shapes can be processed to reduce the cost of parts.