1. Technical Parameters
The input power | 2300W |
Power supply | the work AC220V isolator ± 10% |
Low temperature control scope | 24 degrees Celsius 93.5 degrees Celsius |
Temperature-control accuracy | ± 0.5 degrees |
stir motor | 25W |
Temperature adjusting scope | 0 ~ 99.9 degrees Celsius |
Timing device | 0 ~ 99.99 hours |
Portable power | 2million cooler |
min | 16 ~ 160ml/meter |
2. Scope
This test method covers the determination of the foaming characteristics of lubricating oilsat 24 and 93.5. Means of empirically rating the foaming tendency and the stability of the foam are described.The values stated in acceptable SI units are to be regarded as the standard.
This standard (D892 ASTM )does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements.
3. Summary of Test Method
The sample, maintained at a temperature of 24(75) is blown with air at a constant rate for 5 min,then allowed to settle for 10 min. The volume of foam is measured at the end of both periods. The test is repeated on a second sample at 93.5200,and then, after collapsing the foam ,at 24(75).
4. Performance and Characteristics
Digital display and temperature control. High temperature and low temperature baths have two holes respectively. Four flow meters, two timers, an ejector air pump and a put-in type refrigerator.
5. Applicable Standards
This type of lubricant, is determined according to the foam GB/T12579 and American materials and test D892 ASTM standards applicable to design and manufacture, under specified conditions of foam tendentiousness and determination of oil foam stability.
6. Structural Characteristics
The type of lubricant is mainly determined by the bubble, high and low temperature, air flow adjusting power supply device, portable cooler, air filter, the diffusion equipment etc.
7. Significance and Use
The tendency of oils to foam can be a serious problem in systems such as high-speed gearing, high-volume pumping, and splash lubrication. Inadequate lubrication, cavitation, and overflow loss of lubricant can lead to mechanical failure. This test method is used in the evaluation of oils for such operating conditions.
