Shellac Ash Tester
Contact Info
- Building 1, No. 5500 Yuanjiang Road, Minhang District, Shanghai,
- 高洁
- 13761436048
- 3982822529@qq.com
The YJ-8143 Shellac Ash Tester is designed and manufactured in accordance with the requirements specified in the determination of ash content in the standard GB/T 8143 "Methods for Inspection of Shellac Products", and is applicable to determining the ash content of shellac by the method specified in the standard. Test principle: The sample is carbonized, incinerated at high temperature, ashed, weighed, and the ash content is calculated.
I. Main Technical Features of the YJ-8143 Shellac Ash Tester:
1. This instrument consists of three parts: a high-temperature heating furnace, a temperature control console, and an electric furnace. It is small in size and occupies little space.
2. The heating furnace adopts an integrated structure, special refractory materials and heating components, which has a short heating time, long service life, and beautiful overall design. The inner lining is a rectangular integral lining made of high-aluminum silicon carbide refractory material.
3. The temperature control console adopts an adjustable digital display controller, with small temperature overshoot and stable and accurate temperature control.
4. The spiral heating element made of iron-nickel-chromium aluminum alloy wire is installed in the wire slots on the upper, lower, left and right sides of the inner lining. It heats from all directions (upper, lower, left and right).
The furnace is a sealed structure, and the insulation layer is built with refractory fiber (aluminum silicate cotton) and diatomite products between the inner furnace and the furnace shell.
5. Determination procedure: Weigh about 3g of the sample passing through a sieve with a pore size of about 0.4mm (equivalent to 40 mesh), accurate to 0.1mg, put it into a porcelain crucible that has been incinerated to constant weight at 500℃ to 550℃ in advance, first carbonize it at low temperature completely, then move it into the furnace, incinerate it at 500℃ to 550℃ for 1 hour, after all is ashed, take it out and cool slightly, place it in a desiccator to cool to room temperature and weigh. Repeat incineration for 30 minutes, cool to room temperature and weigh. Until the weight difference between two consecutive weighings does not exceed 0.0005g.
II. Main Technical Indicators and Parameters of the YJ-8143 Shellac Ash Tester
1. Rated power: 2500W;
2. Rated voltage: AC(220±10%)V, 50Hz;
3. Temperature control: 550℃;
4. Empty furnace heating time: ≤50 min;
5. Furnace temperature uniformity: ≤2℃;
6. Furnace chamber dimensions: 200mm×120mm×80mm (length×width×height);
7. External dimensions: 490mm×450mm×450mm (length×width×height);
8. Weight: Approximately 50kg.
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