Production technology of anti-sinking insulating thrust runner collar based on impregnation technology

Abstract

The invention discloses a production technology of an anti-sinking insulating thrust runner collar based on an impregnation technology. The production technology comprises the steps of S1: melting aluminum in the inert gas atmosphere; S2: immersing a stainless steel plate in the molten aluminum, and taking out the immersed stainless steel plate for cooling; S3: adding first powder into the molten aluminum, and heating till the first powder is molten, so as to obtain a first molten mixed liquid; S4: immersing the stainless steel plate in the first molten mixed liquid, and taking out the immersed stainless steel plate for cooling; S5: adding second powder into the first molten mixed liquid, and heating till the second powder is molten, so as to obtain a second molten mixed liquid; and S6: immersing the stainless steel plate in the second molten mixed liquid, and taking out the immersed stainless steel plate for cooling, so as to obtain the insulating thrust runner collar after oxidation, wherein the first powder comprises 50 parts by weight of magnesium and 4-5 parts by weight of niobium; and the second powder comprises 50 parts by weight of zirconium and 6-7 parts by weight of beryllium. According to the scheme, a conventional impregnation technology is improved, so that the prepared thrust runner collar can be highly frequently used without expansion, contraction and sinking under the high temperature and high pressure condition , and the surface is flat and abrasion resistant.

Description

technical field [0001] The invention relates to a production process of an insulating plate, in particular to a production process of an anti-sag insulating mirror plate based on an impregnation process. Background technique [0002] When manufacturing the main substrate of the circuit board (PCB), it is necessary to use a voltage machine to laminate multiple layers of different materials. The working principle of this voltage machine is to heat the processed glue through copper foil (or aluminum foil) Adhesive resin material, and press the multi-layer material by applying a certain pressure for at least half an hour, so as to make the circuit board base material, and in the process of pressing with an electric machine, due to cost considerations, a single pressing operation often needs to be done at the same time. Pressing multiple pieces of circuit board substrates, and in order to prevent multiple pieces of circuit board substrates from being affected by each other when...

AI Technical Summary

Problems solved by technology

[0003] The biggest difference between the mirror plate and the ordinary insulating plate is that there is a dense coating on the surface, which has a great influence on the performance of the mirror plate. In the lamination process, the performance requirements of the mirror plate are very high. During operation, both high temperature heat (greater than 300°C) and strong pressure (greater than 50MPa) are generated, which requires the mirror plate to have excellent thermal pressure resistance, that is, the mirror plate needs to have a very high limit temperature resistance And the ultimate pressure resistance, and, more importantly, the surface coating of the mirror plate must remain very smooth and smooth after repeated hot pressing, without depressions on the surface, and no expansion and contraction. This requirement cannot be realized in the process. Generally, the mirror plate of the prior art can be used for about 100 times at room temperature, and then the surface begins to be sunken, resulting in the failure of the mirror plate, and it can only be used about 50 times at high temperature. has expired

The main reason why the existing technology cannot meet this requirement is that the preparation technology of this coating is not yet mature.