Aluminum alloy seating of the steel plate in the process of extrusion faults have?
by:OUHE2020-06-04
Aluminum alloy seating or metal seating using steel plate in the extrusion process can have several common faults: 1, products organization uneven performance.
Due to the extrusion of metal flow nonuniformity (
No lubrication is particularly acute when forward extrusion)
, make the products surface and center, the head and tail organization performance uneven phenomenon, especially 6 how a02, 2 a50, 2 a10, 2 a12 alloy extrusion products, such as the formation of coarse grain ring after heat treatment.
2, extrusion die working conditions, working mould wear big (
According to the statistics in one power plant, account for more than 15% of the total cost)
。
3, the production efficiency is relatively low, the conventional multiple squeezing method cannot realize the continuous production.
4, compared with the other forming method, geometric waste loss is bigger.
(
Cutting head and tail, a scrap)
Geometric waste could reach 10% by weight of the ingot casting & ndash;
20%.