Forging cleaning

Core Tip: The purpose of the cleaning is to remove the burrs and yttrium oxide from the ferrule forgings. When the forging burr size exceeds the technical conditions of the forging, it is ground on the grinding wheel and is generally performed before the forging is annealed.
The purpose of the cleaning is to remove the burrs and yttrium oxide of the ferrule forgings.
When the forging burr size exceeds the forging technical condition, it is ground on the grinding wheel and is generally performed before the forging is annealed.
Forgings yttrium oxide is generally carried out after annealing, there are two types of horizontal roller cleaning and blasting roller cleaning:
1. Horizontal drum cleaning: Many bearing rings of different sizes are simultaneously loaded into the horizontal drum that rotates at a speed of 20-60r/min to roll and collide with each other, so that the cerium oxide is detached from the surface of the forging, and at the same time The burrs and edges of the forgings are polished, and in order to speed up the cleaning, some scrap balls are sometimes placed in the drum. The cleaning time is usually 10 to 20 minutes. This method is simple and easy, but the cleaning quality is poor.
2. Shot blasting drum cleaning: The forgings are loaded into a horizontal sealing drum rotating at a low speed (2.5 to 3r/min), and the iron or steel pellets with a particle size of 0.8 to 1.2 mm are thrown from the blades of the high speed rotating blasting machine. It rushes to the forging and causes the cerium oxide to fall off due to the impact. The steel shot can be automatically circulated, and the cerium oxide is sucked out by the vacuum cleaner, and the forging impact noise is small.https://www.supplyforever.com/

Grease specific terminology

Core Tip: Age hardening: The increase in the consistency of the grease with storage time. Appearance: The grease characteristics seen only by visual inspection, usually including the overall appearance and texture
Age hardening: The phenomenon that the consistency of the grease increases with storage time.
Appearance: The grease characteristics seen only by visual inspection, usually including the overall appearance, texture, color and gloss.
Overall appearance: smooth, rough, granular, oily, etc.
Texture: creamy, elastic, brushed.
Color: red, blue, yellow, white, etc., plus the restrictions adjectives "light", "medium", "deep" and so on.
Gloss: bright, dull, etc.
Consistency: Consistency refers to the extent to which a plastic material resists deformation under the action of an external force.
Cone penetration: Cone penetration is a measure of grease consistency. The greater the penetration, the softer the fat.
Consistency grade: NLGI (American Grease Association) is divided into nine grades, from nine to six.
Mechanical stability: The ability of grease to resist changes in consistency when mechanically sheared. The smaller the change in consistency, the better the mechanical stability.
Thixotropy: When the grease is sheared, the consistency becomes small, and when the shear is stopped, the consistency is increased.
Water resistance: The ability of the grease to resist rinsing from the bearing, the ability to resist damage to the structure of the grease by absorbing moisture, and the ability to prevent corrosion of the metal surface in the presence of water.
Colloidal stability: The ability of grease to resist oil separation.
Similar viscosity: Generally, the viscosity of a grease becomes smaller as the shear rate increases, so the viscosity of a grease is called a similar viscosity or an apparent viscosity.https://www.supplyforever.com/