Multi-user smart meters are common in our lives. What is the material of energy meters in everyone's memory? What about plastic or stainless steel? The multi-user energy meter can be said to be an upgraded version of the ordinary water meter. Compared with the ordinary point meter, the smart point meter adds many new functions. So from the housing perspective, what are the materials of the smart point meter case? What requirements should be met? At present, what are the mainstream material types of smart energy meters in the market:
Main features: easy manufacturing; no pollution; corrosion resistance, no rust, no scaling, sanitary and environmental protection; light weight.
Existing problems: low mechanical strength, insufficient rigidity, cold brittleness, easy aging, creep, etc.
2. Ductile iron: main characteristics: high strength and high toughness, good abrasion resistance, and good machining performance.
Existing problems: Compared with gray cast iron, the manufacturing process is more difficult and costly; it is also susceptible to rust and will cause secondary pollution.
3.Stainless steel castings:
Main features: acid and alkali resistance, no secondary pollution; no corrosion and exudation under high and low temperature conditions, health and environmental protection; good mechanical properties
There are problems: it is not easy to process, and the manufacturing cost is high; large-scale production capacity has not yet been formed.
4, cast lead brass:
Main features: good mechanical properties; simple manufacturing process.
Existing problems: It is easy for lead to exceed the standard and cause patina, which is harmful to human health; lack of domestic copper resources; smelting requires high energy consumption; low-lead copper has high manufacturing costs and poor cutting performance.
5.Cast aluminum alloy:
Main features: rich raw materials and low cost; good mechanical properties; high cost performance and low production cost.
There are problems: under the impact of the impact, the surface hardened layer of the thread and other parts is easy to peel off and damage; whether the precipitates after surface oxidation are harmful to human health needs to be evaluated; the prediction and evaluation methods of the case corrosion trend are still being studied in.