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Nitriding furnace mold nitriding layer appears network, corrugated, needle or fishbone defects causes and preventive measures

Nitriding furnace mold nitriding layer appears network, corrugated, needle or fishbone defects causes and preventive measures

Nitriding furnace mold nitriding surface layer appearing reticulate and corrugated, needle or fishbone nitrides and thick white brittle layer will lead to mold toughness reduction, brittleness increas... (more…)

Quenching oil tank cleaning and use specification

Quenching oil tank cleaning and use specification

oil pump will be quenching oil tank in the old oil pumping, the pipeline in the old oil should also be drained (can be opened at the joints to exhaust the old oil).... (more…)

Fan shaft use and maintenance

Fan shaft use and maintenance

Reasons for fan shaft bending or short life:Troubleshooting methods for bent or short-lived fan shafts: circulating cooling water is not enough, the water temperature is too high, or the circulating w... (more…)

Carburizing furnace tank use and maintenance

Carburizing furnace tank use and maintenance

As the outer side of the carburizing furnace canister is close to the electric heating element, the temperature is high, so the furnace canister is re... (more…)

Quench tank agitator control box

Quench tank agitator control box

Quenching tank agitator control box is a supporting control electrical facility dedicated to control... (more…)

Causes of unqualified hardness and preventive measures against unqualified hardness

Causes of unqualified hardness and preventive measures against unqualified hardness

n the practice of heat treatment production, it will produce various defects, such as cracking, severe deformation, unqualified hardness and unqualified performance, etc. Different defects have the same causes, and the correspondi...... (more…)

Precautions for the use of cast iron crucibles

Precautions for the use of cast iron crucibles

Be sure to apply anti-corrosion paint before use.Always clean the scum on the edge of the crucible when using it. Ladle out the aluminum liquid in the crucible during long-term shutdown, clean the hanging slag on the crucible wall...... (more…)

Quenching defects,causes and prevention

Quenching defects,causes and prevention

Common defects in quenching include oxidation, decarburization, deformation, cracking, overheating, over-burning, insufficient hardness, soft spots, soft spots, etc., among which oxidation, decarburization, overheating, deformatio...... (more…)

The use of different crucible

The use of different crucible

Crucible can be divided into the graphite crucible, clay crucible and metal crucible (cast iron pot, stainless steel crucible and so on) three categories. Graphite crucible, is a crystalline form of natural graphite as the main ra...... (more…)