Elastic Metal Plastic Thrust Bearing Pads for Hydropower Industry

Elastic Metal Plastic Thrust Bearing Pads

Elastic Metal Plastic Thrust Bearing Pads is designed and improved based on international similar material for hydropower Industry. It has four layer structure to get high performance.

Material Structure
 

1.PTFE for the surface layer,

2.Chelate of copper wire

3.Bronze welding

4.Steel Base.

Elastic Metal Plastic Thrust Bearing Performance

PTFE through a special process with the copper wire spring mattress solid combination of metallic plastic known as the composite layer. After a special process it brazing into steel.

Thrust bearing pads(PTFE) of performance depends on steel metallic layer of composite PTFE plastic, PTFE plastics are the main features of nonpolar molecu-les & smooth contours. This optical elements of the outline of the slide so that it't only has a very low coefficient of friction characteristics, but also in the process of sliding relative to the transfer of dual surface to form thin transfer film,and plays on the protection of the mill thing.So in the boot unit,downtime or an accident,the hydrodynamic lubricant film can not be formed or damaged,the bearing lubrication or tile in the border state of dry friction.At this point the traditional tile Babbit will be serious wear or even bush-burning,flexibility metallic plastic tile will not happen,it's the normal functioning of the security unit.

From structure of Thrust bearing pads(PTFE), copper wire spring pad to play the role of the link;from the physical properties,it provides strength,resilience & stability of size.Copper wire spring mattress with plastic PTFE together, the situation is basically good or bad decision on the flexibility metallic plastic tile is good or bad. I produced the Shanghai Institute for the development of materials to the PTFE surface layer of plastic for metallic plastic bearings,in January 1994,through the Department of Mechanical and Electric Power joint identification,won a 1994 firstclass scientific and technological progress of the Department of Mechanical Awards,the annual statelevel new products in 1995 & 1996 certificates issued by the State Science & Technology state-level scientific & technological achievements focus on projects to promote "flexibility metallic fluoride plastic composite thrust bearing and its" technical units based on the certificat

Elastic metal-plastic bearings of the outstanding characteristics

• Installation, maintenance convenience;
• High-carrying capacity, the use of safe & reliable;
• Unit shutdown, the speed brake can be reduced to 10% of the rated speed;
• Physical and chemical properties of stability,not chemical reaction,such as lubricants ect.media,not contaminated lubricants;
• Self-lubricating properties,friction coefficient of only 0.04-0.08;
• High-level temperature,lubricating oil in the dama-ged membrane,tile bearing lubrication at the border or dry friction, it will not melt, and not injury-board;
• No boot-top high-pressure oil, at any time can be cold, hot start; Comprehensive performance, to cope with a variety of circumstances;
• If a piece of tile serious wear and tear, does not affect the other tile work;
• Pressure & temperature fields role,be able to adjust the shape of tile surface to raise the tile surface mirror and the stability of the oil film between the board so that the unit is running more secure.

Elastic metal-plastic bearings design parameters

• Allowable pressure units: 7.0MPa;
• Allowable average speed: 3-40m/s;
• Elastic metal-plastic bearings assembly to the eccentricity of the Week: 6 to 9%;
• W-cooling system: no;
• Elastic metal-plastic bearing oil temp: ≤55℃;
• Elastic metal-plastic bearing body temp: ≤65℃;
• The board-Face roughness: ≤Ra0.4;
• The board-Face hardness: ≥HB200;
• High-pressure oil from the top: no;
• Lubricants brand: L-SA32/L-TSA46.