Journal Repair

Journal Repair
 

Product description:

First, turning Depot
Advantages: Turning parts journal surface material does not change
Disadvantages: 1, Depot turning longer and expensive.
2, after turning the journal to be equipped with non-standard tile, if the rotor has scrapped dangerous strain again.
two , Electric Plating
Advantages: 1, field repair, easy to operate.
2, time is short, wide face high repair efficiency.
3. The coating between the parent metal bonding, high bonding strength. After the repair can be turning.
4. The journal surface can brush nickel alloy, hardness exceeds 45 steel, chrome surface behind, while a preservative effect can be achieved.
5, low heat input, no thermal stress, the repair site within 40 ℃.
Disadvantages: 1, a trench for more than five millimeters lower repair efficiency.
2, the bath will have a field environment pollution.
Third, micro-arc cold welding repair
Advantages 1, field repair, easy to operate.
2, metallurgical bonding, and never fall off.
3, only the repair of worn parts, the mother does not produce man-made damage.
4, low heat input, no thermal stress, the repair site within 50 ℃.
Disadvantages: 1. Repair wide face lower efficiency.
2. The income side is not easy to control, between the repair site and maternal voids.
3. Only the lower metal material hardness.
4. microscope repair surface, high porosity, surface repair poor wear resistance.
Fourth, the laser cladding repair
Advantages: 1, site repair.
2, metallurgical bonding, and never fall off.
3, the cladding material and base metal close to good wear resistance.
4, only the repair of worn parts, the mother does not produce man-made damage.
Disadvantages: 1, repair efficiency is low, a longer period.
2, the device is large, easy to operate.
3, high temperature, stress is large.
4, Zhen repair process to be improved and higher prices.
Fifth, thermal spray technology
Advantages: 1; repair speed; sprayed layer thickness can reach 5mm
2, easy on-site operation.
Disadvantages: 1, pretreatment before spraying damage the substrate.
2, poor adhesion, easy to collapse skin.

One-time use of electric brush plating thickness of 1-3mm thick copper alloy while repairing the journal can also be directly nickel alloys.

Brush plating bath using FJY direct turning, after reaching the accuracy requirements, remain 1-2S margin then brush FJY fast nickel. In the journal surface wear uniform, under no circumstances bump defect can also be directly plated nickel.

Large fan shaft site Electric Plating