Microwave short circuit ring

Abstract

The invention discloses a microwave short circuit ring comprising a hollow chamber, wherein N grooves are formed on the inner wall of the chamber; N is an integer greater than or equal to 1; when N is greater than or equal to 2, the distance between two adjacent grooves is greater than one half of a microwave wavelength and less than the wavelength of two microwaves; the width of the groove in the microwave propagation direction is one quarter of the microwave wavelength and the tolerance of the width is + / -1 mm; and the depth of the groove is a multiple of one quarter of the microwave wavelength and the tolerance of the depth is + / -2 mm. The microwave short circuit ring has the following beneficial effects that the dose of microwave leakage at the inlet and outlet of a rubber vulcanizing apparatus can be quickly attenuated to be below 30 mu W / cm so that operating personnel can conveniently and freely work by approaching the rubber vulcanizing apparatus; the potential safety hazard is eliminated and the labor productivity is improved; the length of the short circuit ring is one third of the length of the previous short circuit ring; and the equipment manufacture and use costs are reduced.

Description

technical field [0001] The invention belongs to a microwave leakage prevention device, in particular to a short-circuit ring used for microwave leakage prevention in a rubber heating and vulcanization production line. Background technique [0002] Raw rubber becomes soft when heated, becomes hard and brittle when cooled, is not easy to form, is easy to wear, and is easily soluble in organic solvents such as gasoline. In order to improve the performance of rubber products, a series of processing processes must be carried out on the raw rubber in production. Under certain conditions, the raw rubber in the rubber compound and the vulcanizing agent undergo a chemical reaction, so that the macromolecular crosslinking of the linear structure becomes The macromolecules of the three-dimensional network structure make the rubber compound have excellent properties such as high strength, high elasticity, high wear resistance, and corrosion resistance. This process is called rubber vul...

AI Technical Summary

Problems solved by technology

Although the microwave heating vulcanization technology overcomes various defects in the traditional heating method, if the microwave leakage dose reaches more than 50 μW / cm, it may have an adverse effect on the health of the workers. How to effectively solve the problem of microwave heating in the microwave heating vulcanization production line? Leakage issues have plagued the industry

However, since the short-circuit ring is the entrance and exit of the vulcanized rubber in the microwave heating vulcanization production line, and the vulcanized rubber at a higher temperature cannot be scratched by other objects, the short-circuit ring must leave a certain margin for the passage of the vulcanized rubber, which makes the short circuit Even if the length of the ring is extended to the maximum size allowed by the microwave heating vulcanization production line of 1.5 meters, it cannot fully meet the requirements, so that the operators need to keep a certain safety distance when working on the microwave heating vulcanization production line to ensure personal safety. It is very inconvenient for personnel; at the same time, the long short-circuit ring makes the microwave heating vulcanization production line equipment occupy a large area, which is a disadvantageous factor for the equipment use cost of enterprises in today's world where every inch of land is expensive

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