Home>Bearing knowledge> Hard grinding of steel balls (1)

/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131";

Hard grinding of steel balls (1)

---

/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

The method of grinding the grinding wheel with a grinding wheel after heat treatment is called hard grinding; the effect is to eliminate the disadvantages of soft grinding (or light grinding); remove the external oxidation, decarburization, deformation and cucurbit arrangement disadvantages occurring in the heat treatment; Further improvement in precision and appearance quality.
During or after the hard grinding of the steel ball; should look at the appearance of the appearance; after the cold pickling to see the burn; burns can usually be divided into secondary temper burns and secondary quenching burns; secondary temper burns after cold pickling black The secondary quenching burns are gray martensite after cold pickling; the surrounding is black troostite. Linear burns, spot burns and north and south pole burns (large ball burns) appear.
The cause of linear burns:
1. Cast iron plate or grinding wheel groove is too deep; affecting the flexibility of steel ball rotation,
2. The working faces of the cast iron disc or the grinding wheel are not parallel or the grooves are inconsistent; the conflicting appearance of the steel ball top steel balls,
3. The grooves of the cast iron disc or the grinding wheel do not match.
4. The intersection of the distributor and the cast iron plate does not match,
5. The bell mouth at the entrance of the cast iron plate is too large; the steel ball touches the edge of the grinding wheel groove.
6. The slope of the flow ball groove is not properly adjusted; the steel ball is moving too fast or too slow.
7. The grinding wheel is broken (block) and obstructed; the incoming and outgoing balls are not smooth,
8. The ball angle of the ball ball is flat or worn to be concave; the ball is not smooth,
9. Work pressure is not applied properly.

---

Recommend to friends comments close window

Bearing related knowledge

FAG imported bearing device and application method inch tapered roller bearing 25580/20 Bearing Sealing Skills Rolling Bearings Classification Bearing Requirements Doing Practice View

This article links to http://
Please indicate China Bearing Network http://

Previous:Features and application of bimetal bearings and JBD Next: Fixed method for FAC bearing inner ring

Scaffold Ladder

Access Ladder,Scaffold Ladder,Scaffolding Step Ladder,Scaffolding Coupler

Kaiping Youying Metal Products Co., Ltd , https://www.yyscaffold.com