Definition of honing and quenching treatment and constant pressure requirements

- Mar 25, 2019-

The piping design and piping of the honing pipe should be consistent with the hydraulic schematic to a certain extent. To a certain extent, in addition to the honing pipe itself, other components, components and accessories must be carefully selected. Secondly, the laying arrangement and direction of the honing pipe must be neat and uniform, and the level needs to be distinct. If there are parallel and intersecting honing pipes in the system, we must pay attention to the gap between them.

The honing pipe must also have its good performance when it is used. To a certain extent, such as its rigidity, anti-vibration ability, etc., in order to enhance the safety and stability of the pipe, it is necessary to configure the corresponding bracket and pipe clamp to avoid Displacement occurs during use.

Definition of honing and tempering treatment

The quenching and tempering treatment of the honing pipe refers to the high temperature tempering of the pipe after quenching. The main purpose of the honing pipe is very simple when it is used. When the operation is performed, the honing pipe after quenching and tempering has excellent comprehensive mechanical properties. In the whole process, the key is to grasp the heating time, holding time, cooling speed and cooling medium of the modulation process, which are determined by the specific materials and specific technical requirements. After the quenching and tempering treatment, the honing pipe has undergone a great change. It not only maintains high strength, but also has good plasticity and toughness, and is more suitable for various application conditions.

How to pressurize the honing pipe

1. Shedding cutting stage: At the beginning of such constant pressure honing, due to the rough wall of the hole, the contact area between the oil stone and the hole wall is small when the use is made, the contact pressure is large, and the convex portion of the hole wall is quickly worn away. However, due to the high contact pressure on the surface of the oil stone and the wear of the oil-and-binder binder by the chips, the bonding strength between the abrasive particles and the binder is reduced. Therefore, some of the abrasive grains fall off under the action of the cutting pressure, and the oil stone surface is exposed. Abrasive grain, this is the oil stone self-sharp.

2. Breaking and cutting stage: As the honing progresses, the surface of the hole becomes more and more light, the contact area with the oil stone becomes larger and larger, the contact pressure per unit area decreases, and the cutting efficiency decreases. At the same time, the cut chips are small and fine, and the wear of these chips on the adhesive is also small. Therefore, the oil stone abrasive grains are rarely peeled off, and the grinding is not performed by the new abrasive grains but by the abrasive grain tips. Therefore, the tip of the abrasive grain is very heavy, and the abrasive grain is easily broken and broken to form a new cutting edge.

3. Blocking cutting stage: When the honing continues, the contact area between the surface of the oil stone and the hole is getting larger and larger, and the extremely fine chips accumulating between the oil stone and the hole wall are not easily removed, causing the oil stone to become clogged and become very smooth. Therefore, the oil stone cutting ability is extremely low, which is equivalent to polishing. If the honing is continued and the oil stone is clogged and the adhesive blockage occurs, the oil stone completely loses its cutting ability and is severely heated, and the accuracy and surface roughness of the hole are affected. At this point, the honing should be ended as soon as possible.www.ht-tube.com