熔样机钢铁冶金行业应用

析技术在测量不锈钢时具有快速、无损、准确、操作简单、结果可靠等优点,近年应用逐渐广泛。在X射线荧光光谱分析中,硼酸盐熔融制样技术由于消除了样品的粒度效应和矿物效应,同时样品被稀释,又大大降低了不同元素间的相互

 析技术在测量不锈钢时具有快速、无损、准确、操作简单、结果可靠等优点近年应用逐渐广泛。在X射线荧光光谱分析中,硼酸盐熔融制样技术由于消除了样品的粒度效应和矿物效应,同时样品被稀释,又大大降低了不同元素间的相互干扰,而被认为是XRF分析中精确的制样方法。由于大多数铁合金在高温时可以和铂形成共溶物,严重腐蚀铂金坩埚,所以需要进行充分的预氧化。而近期某大型不锈钢生产企业,由于原料粉末压片经常掉粉,污染分析设备,改为熔融制样,提供样品要求我们帮助开发熔样方法。

mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;"> 

二、制样设备及工具

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">1.设备 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">瑞绅葆电热熔样机:FSC-01型全自动熔样机 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">

mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;"> 

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">2.样品: mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">客户提供不锈钢粉末样品并命名:304B样,4Cr10Si2Mo样,316LB样,21-4N样,310S样,马氏体保护渣样,奥氏体保护渣样。 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">3.试剂: mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">

mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">硼酸锂混合熔剂(Li2B4O7LiBO2=67:33),LiBr溶液( mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">自制 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">30g mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">分析纯溴化锂 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">+70mL H₂O mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">。 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;"> 

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">4.铂金坩埚: mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">

mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">Pt/Au: 95/5 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

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三、样品制备

 

mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">称取9g硼酸锂混合熔剂 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">置于 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">铂金坩埚 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">中 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">,再加入0.9g样品,混合均匀,加入5LiBr溶液 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">, mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">将制备好的样品装入熔样机的坩埚架中,设置熔融温度为1 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">05 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">0℃ mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">(马氏体和奥氏体保护渣粉末样设置熔融温度为1100℃) mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">,熔融时间为7分钟,摇摆时间为10分钟,倾倒前静置时间30秒,倾倒后静置时间5秒,开始运行。程序运行结束后,取出装有样 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">片 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">的模具置于耐火板上直至冷凝剥离,然后将样 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">片 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">进行标记,真空干燥存放。 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

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四、结论

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">FSC-01型全自动熔样机是瑞绅葆分析技术(上海)有限公司研制的一款XRF分析用玻璃熔片法制样设备。该设备操作简单,性能稳定,适用范围广,升温速度快。制得的样品均匀,质量好,能满足不同行业客户对XRF分析熔样制样需求。 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

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