Switch blade for high-voltage breaker and silver plating process for switch blade
A technology of high-voltage circuit breakers and blades, applied in circuits, electrical components, electrical switches, etc., can solve the problem of high cost and achieve the effect of low cost, good performance, and simple and feasible silver plating process
Active Publication Date: 2013-07-10
CHANGSHU QIANGSHENG PUNCHING
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- Description
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Problems solved by technology
[0005] However, as a precious metal material, silver is required to be integrally silver-plated on the gate blades used for high-voltage circuit breakers, especially the large gate blades used for high-voltage disconnectors, and the cost is relatively high.
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[0020] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0021] see figure 1 , the embodiment of the present invention includes:
[0022] A gate blade for a high-voltage circuit breaker, comprising: a base 1, the base 1 is in the shape of a long strip, and includes a fixed connection end 2 and a movable connection end 3, and a silver-plated layer is provided on the surface of the fixed connection end and the movable connection end to ensure For its best performance, the thickness of the silver-plated layer is greater than or equal to 25.4 um. In this embodiment, the length D1 of the silver-plated layer of the fixed connection end 2 must be greater than 29 mm, and the length D2 of the movable connection...
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Abstract
The invention discloses a switch blade for a high-voltage breaker. The switch blade comprises a substrate, wherein the substrate comprises a fixed connecting end and a movable connecting end; and a silver coating layer is respectively formed on the surfaces of the fixed connecting end and the movable connecting end. The invention also discloses a silver plating process for the switch blade for the high-voltage breaker. The silver plating process comprises the following steps of: processing the surfaces, plating silver, stripping and polishing. The switch blade for the high-voltage breaker hasgood performance and is low in cost; the silver plating process is simple and practicable; the silver coating layer is firmly bonded with the substrate, so enough adhesion strength is achieved; zero plating leakage within an effective range of the coating layer is ensured, and throwing power is good; and the surface of the coating layer of a product does not have defects such as corrosion, scratches, collision, damage, yellowing, dark spots and the like.
Description
technical field [0001] The invention relates to the field of electric devices, in particular to a gate blade used for a high-voltage circuit breaker or a high-voltage isolating switch and its silver plating process. Background technique [0002] High voltage circuit breakers and disconnectors are the most important components in power systems. The circuit breaker is responsible for controlling and protecting the safe and stable operation of the power system. The so-called control means that when some power facilities and lines in the power grid fail during operation or when the power grid is dispatched, the faulty part will be quickly recovered by opening and closing the circuit breaker, etc. Separate to ensure the normal operation of part of the power grid. Circuit breakers operate under high pressure and load conditions, and strong arcs will be generated during operation. Therefore, circuit breakers are often divided into oil circuit breakers, compressed air circuit break...
Claims
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IPC IPC(8): H01H21/18H01H11/00C25D5/02
Inventor 谢国强
Owner CHANGSHU QIANGSHENG PUNCHING