Method for preparing foam metal through resin microsphere stacking

Abstract

The invention belongs to the technical field of foam metal material preparing and provides a method for preparing foam metal through resin microsphere stacking. The method includes the steps that firstly, hollow PMMA glass microspheres are prepared and then are stacked, then metal powder and water are mixed and stirred to prepare metal pulp, then the metal pulp flows into the stacking clearance formed by the hollow microspheres and fill the stacking clearance, and porous foam metal is obtained after drying and sintering curing. Compared with a traditional method, the technological process is simplified in the adopted method, the production cost is reduced, meanwhile, the foam hole size, the porosity, the volume weight and the like of the foam metal are effectively controlled, the compression resistance capability of the obtained product is high, plastic deformation is not likely to happen when the product is compressed, the use performance is good, energy conservation and environment friendliness are achieved in the whole preparing process, and the method can be widely applied.

Description

technical field [0001] The invention belongs to the technical field of foam metal preparation and provides a method for preparing foam metal by stacking resin microspheres. Background technique [0002] Porous metal foam material is actually a composite material of metal and gas. It is because of this special structure that it has both the characteristics of metal and the characteristics of bubbles, such as small specific gravity, large specific surface, good energy absorption, and thermal conductivity. Low (closed-cell body), high heat transfer and heat dissipation capacity (through-hole body), good sound absorption (through-hole body), excellent permeability (through-hole body), good electromagnetic wave absorption (through-hole body), flame resistance, Heat and fire resistance, thermal shock resistance, gas sensitivity (some porous metals are very sensitive to certain gases), regeneration, good processability, etc. If breakthroughs are made in key technologies such as pr...

AI Technical Summary

Problems solved by technology

Generally speaking, the porosity of metal foam prepared by electrodeposition is high and very uniform, but the process is long, the operation is cumbersome, and the cost is slightly high; the metal foam prepared by chemical decomposition has the problem of sealing pores and residual carbon for nickel foam. Problems: The operating conditions for preparing metal foam by vacuum vapor deposition are strict; the deposition speed is slow, the investment is large, and the production cost is high; the technology of foaming method is generally more complicated and difficult to master, and it is mainly the preparation of low melting point metal foam; The casting method is only suitable for metals and alloys with low melting points (such as Al, Pb, Sn, etc.); the casting method around granular materials can obtain castings with very complex shapes; the use of metal fibers instead of metal powders for sintering can prepare suitable for sieves. metal foam