Description of the casing material for EJA transmitters

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The overall material of the transmitter consists of different materials for various parts. What material is used to make the dark green casing that we often see? You might not have thought about it, but the manufacturers of EJA transmitters take great care in addressing these issues, which are often overlooked, during the design process. Let’s talk about the material used for the casing of EJA transmitters. 　　Although the material of the EJA transmitter’s casing does not affect its overall performance, placing it in an area without a similar protective cover for extended periods can lead to a series of changes (in fact, the EJA transmitter also doesn’t require a protective cover). Under normal operating conditions, unless the user specifies a need for corrosion resistance or increased hardness, the casing is deep green (as shown in the figure below). This dark green shell is actually a low-copper cast aluminum alloy with polyurethane finish. For greater durability, 361L stainless steel can be used to enhance protection against external factors. Comparison of corrosion resistance between polyurethane-coated low-copper cast aluminum alloy and 316: When looking at the data sheets, many transmitters use 316 as their material; however, in environments with high corrosivity such as those involved in HCl synthesis, polyurethane-coated low-copper cast aluminum alloy is chosen as the material for the transmitter body. Frequently asked questions: Which of these two materials is better in terms of corrosion resistance? What is the material of polyurethane paint-coated low-copper cast aluminum alloy? I’ve never seen it before. Answer: It is an alloy made by adding a small amount of copper to aluminum; copper plays a role in strengthening the material through solid solution effects, and copper is added to all types of hard aluminum alloys. 2. Which of these two materials is more expensive, and by how much approximately? 　　Answer: The 316 and polyurethane enamel low-copper cast aluminum alloy are several hundred dollars more expensive than the latter; the difference is within an acceptable range overall.