Reasonable use of slag ball content - Database & Sql Blog Articles

Product Name: Slag Ball Content Analyzer

Product Manual:

First, the use of slag ball content analyzer:

In accordance with GB/T 5480.5-2008, this instrument is designed for testing slag ball content in mineral wool and its products. It can analyze the slag ball content in glass wool, slag wool, rock wool, aluminum silicate cotton, and their respective products. With a compact design, it is both practical and user-friendly, making it an essential tool in any laboratory setting.

Second, Slag Content Steps for Usage:

1. Preparation of Sample:

Follow the standard GB/T 5480.5-2004 to select the sample and cut it to full thickness. The weight should be approximately 11g. For glass wool and its products, burn at (500±20)°C for 30 minutes. For silicate cotton and its products, burn at (700±20)°C for 30 minutes. Remove the binder and weigh accurately to 0.01g. The number of samples should follow the product standard, but not less than three samples.

2. Pressing the Sample:

Place the weighed sample into the corresponding sample cylinder and manually press it using the press.

3. Wetting the Sample:

Take out the pressed sample and place it into a 250mL measuring cup. Add 50mL of surfactant solution and stir thoroughly to ensure the fibers are wetted and dispersed in the solution.

4. Separation Test:

Transfer all the sample into the separation cylinder. Turn on the water supply so that the flow rate of the rotameter is maintained at 60mL/min until the fibers are fully dispersed and suspended in water. Then increase the flow rate to (120–180)mL/min and continue the separation for about 10 minutes. Once the water in the cylinder becomes clear, open the discharge valve at the bottom of the cylinder and let the slag balls fall into the standard sieve, which has a mesh size specified by the product standard. Check if any slag balls remain in the fiber collector. If found, re-separate them.

5. Drying:

Place the sieve containing the slag balls into an electric drying oven and dry at 105–110°C for at least 20 minutes.

6. Sieving:

Move the dried slag balls into the standard sieve specified by the product standard. Add three ceramic balls with a diameter of (20±1)mm. Cover the sieve and start the sieve shaker for 15 minutes.

7. Weighing:

Weigh the sieved slag balls using a balance, ensuring accuracy to 0.01g.