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首页 » 杰博新闻中心 » 杰博资讯 » 行业资讯 » 高频红外碳硫仪和电弧红外碳硫仪的区别 You are here: Home » Jiebo News Center » Jiebo News » Industry News » The difference between high frequency infrared carbon and sulfur analyzer and arc infrared carbon and sulfur analyzer

Difference between high frequency infrared carbon and sulfur analyzer and arc infrared carbon and sulfur analyzer

】 Article Source: Editor-in-Chief: Release time: 2019-08-03 13:37:00 Hits: - [Big Middle Small]

At present, the infrared carbon and sulfur instruments on the market have a high price of high frequency infrared, while the price of arc infrared is only less than that of high frequency infrared. When choosing an infrared carbon and sulfur analyzer, customers often pay attention to arc infrared with lower price. But is arc infrared really appropriate? Let's analyze the difference between the two:

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First, the application scope is different

High frequency infrared is an infrared detection system and high frequency induction combustion furnace. It can quickly and accurately determine carbon, sulfur in steel, iron, alloy, foundry core sand, non-ferrous metals, cement, ore, coke, catalyst and other materials. Mass score of two elements. Can detect both metal materials and non-metal materials.

Arc infrared is an infrared detection system used in conjunction with an arc combustion furnace. It is mainly used for rapid analysis before the furnace. The instrument structure is relatively simple. At present, it is mainly used to detect the content of carbon and sulfur in ordinary steel and fusible materials.

Second, the combustion method is different

秒内持续对样品加热,而且温度很高(在1700 ℃以上),样品燃烧效果很好。 The high-frequency induction combustion furnace relies on the principle of eddy current heating of the induction coil to melt the sample, and continuously heats the sample for 30 seconds, and the temperature is very high (above 1700 ℃), and the sample burns well.

The arc ignition furnace is under the action of oxygen-enriched environment, effective distance between electrodes (ignition copper electrode and copper crucible) and flux, the two electrodes (ignition copper electrode and copper crucible) are instantly conducted, and a large current passes through Melt the sample. Because it is instantaneous burning, and because the shape of the sample is different, the arc starting effect is different, so the combustion effect is uncertain, and there may even be a non-arcing linearity, so it can only be used for samples that are easy to burn such as steel.

Third, the analysis scope is different

级。 The high-frequency infrared combustion effect is good, and the disposable ceramic crucible is used. The blank is very low. Pure tungsten is used as a flux. Pure tungsten contains only a small amount of carbon and almost no sulfur, so it can analyze samples with very low content, up to ppm. level.

Arc infrared uses steel crucibles that are repeatedly used for steel. The reference blank is high, and the matching silicon molybdenum powder and ordinary tin particles are fluxes, which adds a lot of blanks. Therefore, when using arc infrared to measure low content samples, the blank value is very high. High, so good results cannot be achieved.

行业资讯 Keywords in this article: Industry information

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