Embedded composite board blank manufacturing method

Abstract

The invention discloses an embedded composite board blank manufacturing method. The embedded composite board blank manufacturing method comprises the following steps: 1) pretreatment: two identical substrates are selected; matched bosses are milled around the substrates; rectangular grooves are machined in middles of the substrates; the bottoms of the substrates are machined as specific shapes; and the inner sides of the rectangular grooves are chamfered; 2) composite blank manufacturing: after cleaning, sandwich layers are uniformly sprayed to the surfaces of concave molds in a vacuum chamber, and drying is performed; liquid-state 316 L composite materials are poured until the surfaces of the concave molds are leveled; after cooling solidification, the surfaces of composite material blanks are milled away; an isolating agent is uniformly sprayed to the surfaces of the composite materials; and after spraying is finished, the two substrates are engaged for assembly, and joints at the periphery are welded; and 3) rolling combination: the blanks are fed in a rolling mill for rolling. The method not only can prevent recarburization of the substrates and the composite boards in the rolling process to prevent influence on the rolling effect by slippage or layering or cracks, but also can increase the rolling contact area to improve the interface bonding strength, and is suitable forlarge-batch factory production.

Description

technical field [0001] The invention relates to a composite material billet manufacturing method. Background technique [0002] With the rapid development of contemporary science and technology, in order to produce high-quality and low-cost products, various industries continue to put forward deeper requirements for the performance of materials. Among them, the use of metal sheets occupies a large proportion in various industries. However, a single metal sheet can no longer meet the requirements of the industry, which makes the study of new composite sheets an important research topic at present. [0003] EH40 high-strength ship plate steel has high stress strength, good low-temperature impact toughness and elongation performance, and has certain corrosion resistance. 316L stainless steel has excellent corrosion resistance, creep resistance, work hardening and high temperature resistance. Since the metal composite material technology can give full play to the respective ad...

AI Technical Summary

Problems solved by technology

[0004] Nowadays, most of the production of metal composite panels adopts the method of direct rolling. Although direct rolling has the advantages of low cost and high efficiency, due to a series of problems such as technical equipment, the composite panels produced usually have insufficient interface bonding strength. High, the uneven thickness of the composite interface in the rolling direction affects the performance of the composite plate

[0005] The authorized publication number is CN 105149350 B patent, "The production process of metal composite plate with large corrugated joint surface by rolling", which adopts the metal composite plate process with large corrugated joint surface. It only increases the contact area in one direction, but increases the fluidity of the metal in the direction perpendicular to it, which is not conducive to metal compounding

The authorized publication number is CN 103736728 B patent, "A Method for Rolling Metal Composite Strip", which adopts corrugated meshing surface composite substrate and cladding plate, and its cross-sectional shape is arc-shaped, elliptical, sinusoidal, triangular, trapezoidal Or rectangular, in addition to the shortcomings of the previous patent, this method will also produce stress concentration, which will affect the rolling performance of the clad plate

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