Guide plate for charge and discharge system and preparation method of guide plate

Abstract

The invention discloses a guide plate for a charge and discharge system and a preparation method of the guide plate. The guide plate comprises a base material which is formed by pressure casting of silicon carbide powder, wherein the base material forms an aluminum alloy layer after aluminum alloy thermally permeates into the surface; the aluminum alloy layer is sequentially provided with a coating zinc alloy layer, a high-phosphorus nickel-phosphorus alloy coating (the phosphorus content is greater than 10%) and a low-phosphorus nickel-phosphorus alloy coating (the phosphorus content is 1-3%). The phosphorus content in the high-phosphorus nickel-phosphorus alloy coating of the guide plate disclosed by the invention is high; an experiment proves that the guide plate meets the corrosion resistance requirements while the phosphorus content in the low-phosphorus nickel-phosphorus alloy coating is relatively low, and can be stabilized at 1-3%; the experiment proves that low-phosphorus nickel-phosphorus alloy coating and the high-phosphorus nickel-phosphorus alloy coating can meet the requirements of the welding property by cooperation; through a test, the guide plate can be applied to various products; nickel-boron alloy is replaced with the low-phosphorus nickel-phosphorus alloy with the phosphorus content being 1-3% in the welded coating of the guide plate; the influence on the environment is reduced; and the use cost of the low-phosphorus nickel-phosphorus alloy coating is only 1 / 6 of the same nickel-boron alloy coating, and thus the cost is greatly reduced.

Description

technical field [0001] The invention relates to a deflector, in particular to a deflector for a charging and discharging system and a manufacturing method thereof. Background technique [0002] The deflector is the carrier of the charging and discharging management system of the hybrid electric vehicle, and it needs to have good corrosion resistance and welding performance. The deflector is generally composed of silicon carbide ceramic powder base material and several coatings. The coating on the traditional deflector mainly adopts a double-layer structure of high phosphorus and nickel-boron alloy. This structure can basically meet the corrosion resistance and welding performance. demand. However, the price of the nickel-boron alloy is relatively high, which will increase the production cost of the deflector. In addition, boron has a great impact on the environment and is likely to cause environmental pollution. Therefore, the use of boron compounds needs to be strictly re...

AI Technical Summary

Problems solved by technology

However, the price of nickel-boron alloy is higher, which will lead to an increase in the production cost of the deflector

In addition, boron has a great impact on the environment and is likely to cause environmental pollution. Therefore, the use of boron compounds needs to be strictly regulated, and the handling is troublesome, resulting in further increase in production costs.

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