Composite ablation-resistant plate structure

Abstract

Disclosed in the invention is a composite ablation-resistant plate structure comprising a substrate and a plurality of insulated sleeves. A plurality of sleeving holes are arranged in the substrate; and the insulated sleeve is fixedly installed in the sleeving holes. The substrate is formed by using a stainless steel, a copper alloy or heat-resistant steel. And the insulated sleeves that are formed by sintering molding of ceramic powders are fixedly pasted in the sleeving holes of the substrate by high-temperature adhesives or are fixed in the sleeving holes of the substrate after local opening shrinking of the openings of the sleeving holes of the substrate, thereby completing assembling of the composite ablation-resistant plate. According to the invention, the traditional single material-based structure of the ablation-resistant plate is changed into the composite ablation-resistant plate structure with the metal substrate and ceramic insulated sleeves. Therefore, both the flame ablation-resistant performance and the performance of insulation among all the holes of the ablation-resistant plate of the ablation-resistant plate are ensured; the processing difficulty and the cost of the parts are substantially reduced; loss of the parts at links of transfer, storage, transport and assembling and the like can be reduced.

Description

technical field [0001] The invention belongs to the technical field of electrical connectors and relates to a composite ablation-resistant plate structure. Background technique [0002] The shedding connector with ablation-resistant plate structure is mostly used for the electrical interface between the missile and the launcher. Generally, the socket is fixedly installed on the missile, and the plug is connected to the launcher through a cable. Before the missile is launched, the plug and the socket are docked and mated. When the missile is launched, the plug and the socket are unlocked and separated by electromagnetic or mechanical force, and the socket flies with the missile. Since the tail end of the missile needs to spray high-temperature flames, in order to ensure that the contacts in the socket of the missile do not short-circuit and cause abnormal operation during flight, the ablation-resistant plate at the butt end of the socket is usually required to have a function...

AI Technical Summary

Problems solved by technology

[0004] The use of high-temperature-resistant plastics to process ablation-resistant plates mainly has three disadvantages: first, the ablation resistance time of high-temperature-resistant plastics is short, and the maximum temperature of ablation resistance does not exceed 600 ° C, and the flame ablation resistance is poor; second, high temperature resistance Most of the plastics are thermosetting plastics, which need to be molded through special molds, and the cost of thermosetting molds is relatively high; third, there are few supply channels for high-temperature resistant plastics, and the material price is high

The disadvantage of using ceramic powder sintering is that the shrinkage rate is not stable during sintering, especially for parts with large size and many holes after sintering, it is difficult to guarantee the structural size tolerance, and the scrap rate is extremely high; it is machined with machinable ceramic profiles. The disadvantage of forming is that the ceramic plate is easy to jump and break during processing, and the scrap rate is high when processing parts with more holes

On the other hand, due to the fragile nature of ceramics, ablation-resistant plates made of ceramics are prone to damage such as jumping corners and fragmentation during parts transfer, storage, transportation, assembly, etc., resulting in higher parts costs

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