火试金灰吹炉

CF60-12火试金灰吹炉可用于贵金属的分析，通过火试金灰皿法对金合金进行检测是行业使用的标准方法，也是国际标志公约规定的参考方法。CF60-12火试金灰吹炉系列因其温度均匀性、低热损失和最大限度的烟雾控制而赢得了声誉。

灰吹炉结构特点：

1、结构：外壳由镀锌钢板制成，表面涂有易于清洁的耐磨烤环氧/聚酯涂层。工作室、炉顶和炉膛内衬有碳化硅瓦，可以承受加工过程中散发的腐蚀性铅烟。双层结构确保安全且的外壳低温。

2、加热元件：碳化硅加热元件安装在工作室的上方和下方，为灰皿杯子提供均匀的加热。碳化硅元件具有较高的耐热冲击性，并在高温下具有较长的工作寿命。

3、隔热：低热容陶瓷纤维和耐磨耐火材料的结合提供了较大的热效率。

4、炉门：带有观察孔的隔热门以垂直平衡动作运行，使热门隔热层远离操作员。当门打开时，强制断开安全开关会激活腔室与所有电源线的隔离。

5、气流：空气由炉后部的可调节阀门控制，在进入室之前通过下部元件进行预热。这确保了整个工作室的快速传热和均匀的温度分布。

6、烟囱/抽气系统：烟雾通过绝缘排气管和位于烟囱下方的可拆卸容器抽出，收集任何冷凝的铅。熔炉应放置在高效的抽气系统下方，建议配备专有的铅过滤器。

7、控制：炉温由基于三项微处理器的控制器调节，可提供+/-1°C 的温度稳定性。备用两期超温控制器可保护加热元件和炉负载。标准配备 7 天 24 小时时间开关。

For the assay of precious metals
The assay of gold alloys by cupellation is the standard method used by the United Kingdom Assay Offices and a reference laid down by the International hallmarking Convention.
The range of batch furnaces from Carbolite has gained an international reputation for close temperature uniformity, low heat loss and maximum fume control.
The Cupellation furnace
Construction: The outer case is fabricated from zinc coated steel sheet which is finished with an easy to clean hard wearing stoved epoxy/polyester coating. The work chamber, roof and hearth are lined with silicon carbide tiles which will withstand the corrosive lead fumes emitted during the process. Double skin construction ensures a safe and cool outer case temperature.
Heating elements: Silicon carbide heating elements are mounted above and below the work chamber providing even heating of the cupels. Silicon carbide elements offer high resistance to thermal shock and offer an extended working life at elevated temperatures.
Insulation: The combination of low thermal mass ceramic fibre and hard wearing refractories provides maximum thermal efficiency.
Door: The insulated door, with observation hole, operates with a vertical counterbalanced action keeping the hot door insulation away from the operator. A positive break safety switch activates isolation of the chamber from all power lines when the door is opened.
Chamber Air Flow: The air, which is controlled by an adjustable valve at the rear of the furnace, is preheated by passing over the lower elements prior to entering the chamber. This ensures rapid heat transfer and even temperature distribution throughout the work chamber.
Chimney/Extraction System: Fumes are extracted through an insulated exhaust duct and a removable container, situated below the chimney, collects any condensed lead. The furnace should be positioned beneath an efficient extraction system preferably fitted with a proprietary lead filter.
Controls: The furnace temperature is regulated by a three term microprocessor based controller which provides temperature stability of +/-1°C. A back up two term overtemperature controller protects the heating elements and furnace load. A 24 hour, 7 day time swith is fitted as standard.

CF24 灰吹炉 规格参考

* 请注意，CF 15 型号尺寸不含单独的控制箱。

Charge Capacity容量

该系列的充电容量取决于灰皿no.8（直径 44.5 毫米 x 高度 30.2 毫米）和灰皿杯子尺寸 no.6（直径 35.7 毫米 x 高度 28.2 毫米）。显然，装载量取决于所用灰皿杯子的尺寸。

The charge capacity for the range is based on cupel size no. 8 (44.5mm dia x 30.2mm h) and cupel size no. 6 (35.7mm dia x 28.2mm h). Obviously, loading will depend on the cupel size used.

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