High temperature and high humidity environment puts high demands on the materials of battery holder shrapnel. First of all, metal materials with good corrosion resistance should be selected, such as stainless steel, copper alloy, etc. Stainless steel contains elements such as chromium and nickel, which can form a dense oxide film on the surface to prevent further oxidation and corrosion. Copper alloy has good electrical and thermal conductivity. At the same time, some special copper alloys add elements such as tin and zinc to improve its corrosion resistance in humid environments. In addition, nickel-based alloys can also be considered, which have excellent high temperature resistance and corrosion resistance and can maintain stable performance in harsh environments.
Surface treatment is an important means to prevent oxidation and corrosion of battery holder shrapnel. Common surface treatment methods include electroplating, chemical plating and passivation. Electroplating can plate a layer of metal on the surface of the shrapnel, such as gold plating, silver plating, nickel plating, etc. Gold and silver have good chemical stability, are not easily oxidized and corroded, and can effectively protect the shrapnel matrix. Nickel plating can also improve the corrosion resistance of the shrapnel, while increasing the surface hardness and wear resistance. Chemical plating is to form a uniform metal film on the surface of the shrapnel through chemical reaction. Its advantage is that it can process shrapnels with complex shapes and the coating thickness is uniform. Passivation treatment is to form a passivation film on the surface of the shrapnel through chemical methods to improve its corrosion resistance.
Reasonable structural design helps to reduce the oxidation and corrosion of the battery holder shrapnel in high temperature and high humidity environments. When designing, try to avoid gaps, dead corners and other places where water and corrosive substances are easily accumulated in the shrapnel. A sealed structure can be used to isolate the shrapnel from the external environment to prevent water vapor and corrosive gases from entering. For example, a sealing ring is set at the installation location of the battery holder shrapnel, or the shrapnel is sealed in a protective shell by a packaging process. In addition, a drainage channel can be designed so that the accumulated moisture can be discharged in time to avoid corrosion caused by soaking the shrapnel for a long time.
Although the environment where the battery holder shrapnel is located may be high temperature and high humidity, some measures can be taken to control the local environment. For example, a desiccant is set inside the device to absorb moisture in the air and reduce humidity. At the same time, the ventilation and heat dissipation of the equipment can be strengthened to avoid excessive local temperature and reduce the impact of high temperature on the shrapnel. In addition, for some equipment that may produce corrosive gases, effective ventilation and purification measures should be taken to prevent corrosive gases from contacting the battery holder shrapnel.
Regular maintenance and inspection of the battery holder shrapnel is the key to timely detection and treatment of oxidation and corrosion problems. Regularly check the surface condition of the shrapnel to observe whether there are oxidation discoloration, corrosion spots and other phenomena. If slight corrosion is found on the surface of the shrapnel, it can be cleaned and repaired in time. For example, use a special metal cleaner to remove the corrosion products on the surface, and then re-treat the surface. For severely corroded shrapnel, it should be replaced in time to ensure the normal operation of the battery holder and the reliable connection of the battery.
In addition to surface treatment, a protective coating can also be applied to the surface of the battery holder shrapnel. The protective coating can be an organic coating, such as epoxy resin, polyurethane, etc., or an inorganic coating, such as a ceramic coating. The organic coating has good insulation and corrosion resistance, and can effectively isolate the shrapnel from the contact with the external environment. Inorganic coatings have higher hardness and high temperature resistance, and can maintain good protection in high temperature environments. The thickness and uniformity of the coating have an important influence on the protection effect, so the process parameters must be strictly controlled during the coating process to ensure the quality of the coating.
In some cases, corrosion inhibitors can be used to prevent oxidation and corrosion of battery holder shrapnel. Corrosion inhibitors are chemical substances that can inhibit metal corrosion. They can form a protective film by adsorbing on the surface of the shrapnel to prevent the corrosive medium from contacting the shrapnel. Corrosion inhibitors can be added to the coolant or lubricating oil of the equipment, or they can be directly applied to the surface of the shrapnel. When selecting corrosion inhibitors, they should be screened according to the specific environment and shrapnel materials to ensure that they have good corrosion inhibition and compatibility.
