Industrial Reports

Beijing Heavy Electric Machinery Works - 1

15 July 1992
The Conclusion of Using Formula 4-10 (LIQUID BEARING) in Beijing Heavy Electric Machinery Works

Hoping that the product can help with some unsolvable problems which already exist in our production, we started using FORMULA 4-10 (LIQUID BEARING) in July of 1992. Here are the conclusions:

  1. The 026-22, W-200 accurate standing boring mill in the heavy spare parts division plant of our factory which was imported from Czechoslovakia in 1974, is one of the main production equipment handling the machining of 100MW and 200MW steam turbine engine. The workpiece was difficult to switch on as the coefficient of static friction in the guiding rail was high. Creeping would occur after switching on.

    As a result, the accuracy was hard to control. For the face size of those workpieces, (e.g. the face of the high pressure notching bearing), the coarse surface movement also affected the quality of the part being machined and reduced the machining accuracy of the part being machined and of the machine tool.

    This problem was solved immediately after adding 5% of FORMULA 4-10 in the reservoir of the hydraulic guiding rail oil (he base oil is N68 guiding rail oil). This was highly recommended by the operators and technicians because there was no more creeping after the machine was switched on. In addition, the surface coarseness of this refined spareparts had completely reached the required technological (quality) level. The accuracy of the machine tool was improved as well.

  2. The F4100 LON-MEN milling machine of our engine manufacturing plant is an older piece of equipment imported from France in 1990. The maximum size of the workpiece which can be machined on this machine tool is 4,000 mm by 10,000 mm. We discovered that there was a grinding break on the guiding rail after it was transported to our plant. The coefficient static friction in the guiding rail was increased after we had repaired it and creeping followed. This resulted in difficulties in assuring accuracy and a coarse surface finish resulted during the machining process (e.g. the parting surface of the low pressure cylinder).

    The condition was obviously improved after we had added 5% of FORMULA 4-10 (the base oil is N68 guiding rail oil). The coarseness (surface finish) of the machined parts were improved from 3.2 to 1.6 and met the required finish quality. The operators and technicians were satisfied with the results.

Through the results mentioned above, it proved that FORMULA 4-10 can reduce the coefficient of friction and improves the efficiency of production. We believe FORMULA 4-10 can make great contribution to the heavy industry of our country.