Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of full-pyrolysis metal coating graphite pipe
The invention discloses a preparation method of a fully-pyrolyzed metal coating graphite pipe, which comprises the following steps: S1, firstly putting a brand-new graphite pipe or a graphite pipe which is used for a certain number of times or responds to abnormal numerical values into a 15% zirconium oxychloride solution, and then soaking the graphite pipe in the zirconium oxychloride solution for 20-28 hours, zirconium oxychloride in the zirconium oxychloride solution is hydrolyzed into zirconium oxide, the zirconium oxide is immersed into the graphite tube, and a compact zirconium carbide coating is formed through carbonization in the high-temperature atomization process. The surface of the prepared fully-pyrolyzed metal coating graphite pipe is not prone to high-temperature oxidation, carbonization reaction between carbon in the graphite pipe and other metal elements to be measured is restrained, and therefore the measurement precision and accuracy of the graphite pipe are improved, and meanwhile the problem that response values of part of high-temperature elements such as aluminum and molybdenum are too low or no response value exists is solved. In addition, the graphite pipe prepared by the method can be repeatedly prepared for multiple times, so that the use frequency of the graphite pipe is increased, and the use requirement is met.
本发明公开了一种全热解金属涂层石墨管的制备方法，包括以下步骤：S1：首先将全新石墨管或使用一定次数的或响应数值异常的石墨管放到15％的氧氯化锆溶液中，然后将石墨管在氧氯化锆溶液中进行浸泡20‑28h，氧氯化锆溶液中的氧氯化锆水解成氧化锆，氧化锆浸入到石墨管内，在原子化高温的过程中，碳化形成一层致密的碳化锆涂层。本发明所制得的全热解金属涂层石墨管表面不易高温氧化，并且抑制了石墨管中碳与其他待测金属元素产生碳化反应，从而提高了石墨管的测量精密度和准确度，同时解决了部分高温元素如铝、钼等响应值过低或没有响应值的问题。另外用此方法制备的石墨管可以反复制备多次，从而增加石墨管的使用次数，满足使用需求。
Preparation method of full-pyrolysis metal coating graphite pipe
The invention discloses a preparation method of a fully-pyrolyzed metal coating graphite pipe, which comprises the following steps: S1, firstly putting a brand-new graphite pipe or a graphite pipe which is used for a certain number of times or responds to abnormal numerical values into a 15% zirconium oxychloride solution, and then soaking the graphite pipe in the zirconium oxychloride solution for 20-28 hours, zirconium oxychloride in the zirconium oxychloride solution is hydrolyzed into zirconium oxide, the zirconium oxide is immersed into the graphite tube, and a compact zirconium carbide coating is formed through carbonization in the high-temperature atomization process. The surface of the prepared fully-pyrolyzed metal coating graphite pipe is not prone to high-temperature oxidation, carbonization reaction between carbon in the graphite pipe and other metal elements to be measured is restrained, and therefore the measurement precision and accuracy of the graphite pipe are improved, and meanwhile the problem that response values of part of high-temperature elements such as aluminum and molybdenum are too low or no response value exists is solved. In addition, the graphite pipe prepared by the method can be repeatedly prepared for multiple times, so that the use frequency of the graphite pipe is increased, and the use requirement is met.
本发明公开了一种全热解金属涂层石墨管的制备方法，包括以下步骤：S1：首先将全新石墨管或使用一定次数的或响应数值异常的石墨管放到15％的氧氯化锆溶液中，然后将石墨管在氧氯化锆溶液中进行浸泡20‑28h，氧氯化锆溶液中的氧氯化锆水解成氧化锆，氧化锆浸入到石墨管内，在原子化高温的过程中，碳化形成一层致密的碳化锆涂层。本发明所制得的全热解金属涂层石墨管表面不易高温氧化，并且抑制了石墨管中碳与其他待测金属元素产生碳化反应，从而提高了石墨管的测量精密度和准确度，同时解决了部分高温元素如铝、钼等响应值过低或没有响应值的问题。另外用此方法制备的石墨管可以反复制备多次，从而增加石墨管的使用次数，满足使用需求。
Preparation method of full-pyrolysis metal coating graphite pipe
一种全热解金属涂层石墨管的制备方法
CHEN FENGHUANG (Autor:in) / ZOU ZHIHUI (Autor:in)
12.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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