Soxhlet Oil Content Extractor For Oil Bearing 

Automatic oil-impregnated bearing oil rate tester

Remarks: optional 250ML/500ML/1000ML large parts can be customized

Principle: 

According to ASTM B328; MPIF Standard 57; JIS Z2501, Z2506; GB/T5163 sintered structural parts and oil-immersed bearing powder metallurgy products for oil content decomposition and gas porosity testing methods.

250ml Soxhlet Extraction Apparatus 

The oil content extractor of the oil bearing bearing is a back distillation device. It is composed of a small flask at the bottom, an extraction tube in the middle section, and a condenser tube in the upper section, all of which are connected in a frosted manner with high tightness.

Hard Shell Heating Mantle:

Capacity:250ml

Including temperature control, can be heated to a temperature of 450 ℃

ASTM B328 processing sequence and required equipment:

1. Use a balance with an accuracy of 0.001g to obtain the oil content = the weight of the sample filled with oil-the weight of the sample without oil.

2. Use toluene or petroleum ether as the decomposition solvent, and use a suitable Soxhlet Extractor to remove the oil in the oily sample to obtain an unoily sample. After approximately 1 hour of extraction, the sample was placed in an oven at 120 degrees for 1 hour to drain the remaining decomposition solvent, and then cooled. The extraction, drying and cooling are repeated continuously until the part of the residual weight is fixed at 0.05% of the weight of the dried sample in the air.

3. Liquid: distilled water or deionized water, add 0.05~0.1% wetting agent to reduce the surface tension of the water. To prevent bubbles from adhering to the surface of the test sample, 0.05% degreasing water can be added.

4. The test sample must be processed by vacuum impregnation equipment.

5. Water container regulations: glass or transparent container. When the sample is put into water, the water level of the container should not rise more than 2.5mm.

6. Thermometer: The temperature can be measured in a range of 10 degrees to 38 degrees, with a precision of 0.5 degrees.

7. Lubricating oil: keep 20 to 65 cSt (the ratio of dynamic viscosity to density) at 38 degrees. The typical density of lubricating oil is 0.880g/cm3 and the range of artificial lubricating oil is 0.910 to 1.000g/cm3.

8. Sample preparation conditions: The minimum sample weight is 1.0g, if it is less than 1.0g, an error value will be caused. Several samples can be combined together up to 1.0g.