The new foam aluminum material has excellent performance and a wide range of applications. It has good application development prospects and potentials in many industries such as industry, aerospace, environmental protection, and construction. At present, the application research of new foamed aluminum materials abroad has been quite mature, and large-scale applications have been realized in many industries. At this stage, the preparation technology of new foam aluminum materials in my country is relatively mature, but it is relatively backward in the field of applied research, especially the application in structural materials is still in the experimental research stage. Therefore, the research and development of new aluminum foam materials in my country should strengthen the basic research on the application of aluminum foam materials, and strive to promote its industrial production and application promotion.
Calcium carbonate powder has a significant cost-effectiveness as a foaming agent for the production of new foam aluminum materials. The foaming effect is good when the average diameter of the powder particles is 38, 72, and 120 μm, which can meet the product quality requirements. The performance density of the new foamed aluminum material is inversely proportional to the density of the calcium carbonate powder foaming agent, that is to say, the high-density calcium carbonate powder foaming agent has higher foaming efficiency, and the use of high-efficiency foaming agents can obtain small pores. New foam aluminum material.
The mechanical properties of the new foamed aluminum material are closely related to the foaming efficiency. The foaming agent with low foaming efficiency can be used to obtain the new foamed aluminum material with a peak compressive strength of 13N/m㎡, but on the contrary, use foaming The new foamed aluminum material made of high-efficiency foaming agent has higher energy absorption capacity. The performance of the new foamed aluminum material has a very close relationship with its porosity. Therefore, the required performance of foamed aluminum can be obtained through density control.