Manufacturing method and structure of graphite rotor

What are the manufacturing methods and structures of graphite rotor bearings? Regarding this problem, I believe that everyone is not very concerned in their daily lives! Let the editor give you a detailed explanation, let’s take a look.

Manufacturing method of graphite rotor. Load the graphite rod 1-2mm longer than the wall thickness of the pattern; 2. Install the graphite rod (on the pattern 2, apply the special lost foam coating for copper alloy, the thickness of the coating is controlled at 0.5-1.0mm, enter the drying room and dry below 50C° ; 3. Connect the dried model with EPS foam sprue; 4. Place the assembled model in the lost foam sand box, and add dry sand evenly to vibrate and compact; the amplitude is less than 2.0mm and the vibration frequency is 50HZ sand box The upper part is covered with plastic cloth for sealing, vacuuming negative pressure, and pouring into superalloy liquid; negative pressure is controlled at 0.02-0.05MPa 5 pressure is kept for 10 minutes and then the negative pressure is released; 6 after cutting the runner, the required graphite can be obtained by machining Bearing.

From the perspective of friction loss, the smaller the friction coefficient as a bearing material, the better. Shenzhen graphite has excellent wear coefficient;

Oxidation consumption refers to the consumption produced by the reaction with oxygen during the steelmaking process, which is related to the atmosphere, gas temperature and gas flow rate in the furnace. It is found that 50%-60% of the normal consumption is the largest consumption.

In terms of structure, graphite is a solid material that can be lubricated without oil, reducing the lubrication system, thereby reducing the failure rate;

Graphite rotor has high chemical stability

Low price, strong versatility

If you use metal to make the bearing, you need to operate at high temperature according to the situation you said. Obviously, ordinary materials are not good. Materials with high temperature strength need to be customized. The price is not several times, dozens of times or hundreds of times. First of all, the materials are hard to find. If the graphite falls into the reactor and contaminates the product, obviously the equipment is not done well and the transmission structure needs to be changed.