Application of a Smokeless Lubricant During Hot Forming of Wheel Blanks on a 7000-Ton Press,
Abstract
A new lubricating compound was developed for use in the 7,000 ton hot-forging press. The new compound is virtually smokeless, which is its main advantage over the presently used oil-graphite mixture that causes considerable local air and wastewater pollution. The new lubricant consists of graphite, fire clay and water, which are mixed in tanks under compressed air at 4-5 atm. After filtration and settling, the mixture is sprayed onto the stock and lower die surfaces by three compressed air jets placed 120 degrees apart around the impact area. The timing and amount of lubricant injection are automatically controlled, using a system also developed at the plant. Another advantage of the new compound is that it increases the effectiveness of die contact, which improves forging quality and also reduces wear on the dies. Tests have shown that one wheel forging operation requires about 0.08 kg of clay and 0.1 kg of graphite. Use of the lubricant has greatly improved working conditions in the forging area, and has effected a material saving of 7,000 rubles per year. A block diagram of the mixing and injection system is included. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 22, 1970
- Accession Number
- AD0720929
Entities
People
- G. P. Korotkii
- V. I. Shevchenko
- V. N. Ivchenko
- V. N. Krashevich
Organizations
- National Air and Space Intelligence Center