The news of sudden deaths in recent years is not uncommon. In all sudden deaths, sudden death caused by heart causes is the overwhelming majority. Why is hot weather related to the health of the heart? The effects of high temperatures on the blood circulation system are many, when the temperature When the temperature exceeds 33°C, the metabolism of the human body is significantly accelerated, and the heart rate is accelerated; the body sweats in a large amount, the blood vessels in the body expand, the blood flow increases, and the blood flow increases; these increase the load of the heart. Extreme sympathetic excitement is itself a malignant arrhythmia. An important predisposing factor. High temperatures can also cause sympathetic nerve activity. Especially for the frail elderly, special attention should be paid. Generally speaking, when the temperature is higher than 31°C, the elderly are already less able to tolerate it. Be sure to take preventive measures in advance to avoid catching the disease when you visit.
Some aerial vehicle drivers are self-possessed young, healthy, and feel that hot weather will not cause much impact, so they do not take it seriously. From the clinical data, many sudden deaths caused by hot weather will also appear in the history of no previous heart disease. People who don't have a medical history do not mean they don't get sick or they can become ill and cannot know. When the temperature is too high, the body's metabolism is accelerated at the same time, and the risk of sudden death is even greater.
Nickel-based alloy powders are commonly used in plasma transfer arc welding (PTAW) due to their excellent corrosion resistance, high temperature strength, and good weldability. These alloys are typically composed of nickel as the base metal, with various alloying elements added to enhance specific properties.
Some commonly used nickel-based alloy powders for PTAW include:
1. Inconel 625: This alloy powder is widely used for PTAW due to its high strength, excellent resistance to corrosion, and oxidation at elevated temperatures. It is commonly used in applications involving seawater, chemical processing, and aerospace industries.
2. Hastelloy X: This alloy powder is known for its high-temperature strength and oxidation resistance. It is commonly used in applications involving gas turbine engines, industrial furnace components, and chemical processing.
3. Monel 400: This alloy powder is known for its excellent resistance to corrosion, particularly in marine environments. It is commonly used in applications involving seawater, chemical processing, and oil refining.
4. Inconel 718: This alloy powder is known for its high strength, excellent resistance to corrosion, and good weldability. It is commonly used in applications involving aerospace, oil and gas, and nuclear industries.
5. Inconel 601: This alloy powder is known for its excellent resistance to high-temperature oxidation and corrosion. It is commonly used in applications involving heat treatment equipment, chemical processing, and power generation.
These nickel-based alloy powders can be used in PTAW processes to create high-quality welds with excellent mechanical properties and resistance to corrosion and high temperatures.
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