Process method for rubber tube vulcanization

Abstract

The invention discloses a process method for rubber tube vulcanization and relates to the field of process methods for rubber tube vulcanization. The process method for rubber tube vulcanization comprises the specific steps that a mold sleeving stage is conducted, specifically, a preforming rubber tube blank and an aluminum mandril mold are prepared, and the aluminum mandril mold is made to be sleeved with the preforming rubber tube blank from the non-ring opening end; and a vulcanization stage is conducted, specifically, the mold-sleeving tube blank is hung on a vulcanization vehicle, the vulcanization vehicle is pushed into a vulcanization tank, an air inlet valve is opened and is filled with high-temperature steam, the air inlet valve is closed, an air exhausting valve is opened, and the mold-sleeving tube blank is taken out for demolding. According to the process method, the good thermal conductivity of an aluminum mandril is used, so that in the mold sleeving stage, the aluminum mandril is cooled naturally, and automatic vulcanization due to the fact that the rubber tube blank is heated excessively is effectively avoided; in the vulcanization stage, the temperature of the aluminum mandril can be quickly kept the same as that of the high-temperature steam in the vulcanization tank, so that the inside and the outside of the rubber tube blank are heated evenly, and the defects of bubbles or cracks generated due to partial uneven heating of a rubber tube are effectively overcome.

Description

technical field [0001] The invention relates to the field of rubber tube vulcanization process. Background technique [0002] The country vigorously advocates energy saving and environmental protection. In response to environmental protection policies in the field of automobile pipeline connections, new environmental protection requirements have been added to rubber hose materials, so that various special rubber materials are applied to rubber hoses. When new materials are applied, especially for special rubber and large-diameter rubber pipes with reinforced layers, bubbles or cracking defects are prone to occur. In order to effectively reduce the influence of vulcanization defects on the qualified rate of finished products, new challenges are put forward for the vulcanization process of rubber tubes. [0003] The reason for the bubbles or cracking defects in the rubber hose is that the rubber hose is overheated locally during the molding stage and the vulcanization stage, ...

AI Technical Summary

Problems solved by technology

[0003] The reason for the bubbles or cracking defects in the rubber hose is that the rubber hose is overheated locally during the molding stage and the vulcanization stage, or the rubber tube is heated unevenly inside and outside the rubber tube during vulcanization, so that the rubber tube is prone to bubbles or cracking defects in the bending area, resulting in the rubber tube. In terms of durability, it cannot meet customer requirements

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