Vacuum Tube Furnace Working Principle

How does the vacuum tubular furnace work in reducing atmosphere?

In order to work in reducing atmosphere, how to use mixed reducing gas considering safety and cost? Here are three problems we may encounter.

1. A mixture of hydrogen and argon, or a mixture of hydrogen and nitrogen? What's the proportion?

Answer: High-purity nitrogen is cheaper than high-purity argon. If nitrogen does not affect the reaction, it is also economical to use nitrogen. The concentration of hydrogen is as low as possible and the surface area of solid is as large as possible. High temperature vacuum furnace.

2. Buy two bottles of pure gas separately and mix them again, or a bottle of mixed gas from a manufacturer?

Answer: It's better to mix by oneself, and the proportion requirement is not very precise. It's OK to use float flowmeter, and the proportion can be changed at any time. Manufacturers are allocated according to measurement standards, the price is relatively expensive. Of course, you need to pay more for a cylinder. High temperature vacuum furnace.

3. In addition to vacuum tubular furnace and gas, do you need any special accessories when using this reducing gas?

Answer: Other special accessories are not needed. Just remember to drain the exhaust gas outdoors.

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