Material is QT450

In addition to plastic buckets, bucket teeth casting factory should immediately drain pipes sewage treatment.

Often check the conditions of bucket tooth casting processing of temperature control instrument of each machine equipment to avoid uncontrollable, especially to avoid the embrittlement of wax caused by too high temperature.

Check the liquid level of each high-temperature heat-transfer oil of wax treatment equipment once a month. The oil level should be 200 mm up down the top of the wall of the equipment to avoid oil spillover. pay attention to check the equipment for oil leakage.

Often check the natural environment to prevent dust other people infiltrating into the wax.

Regulations on processing technology

Indoor temperature 22 ± 2 ℃

Wax cylinder temperature 54 ± 2 ℃ (for large objects, it should be set according to the regulations of processing technology) wax nozzle temperature 57-64 ℃

Injection working pressure 4.2mpa (42kgf / cm2) curing time 5-15s cooling circulating water temperature < 10 ℃

Safety operation procedures

Check whether the oil pressure, heat insulation temperature actual operation buttons of the wax pressing car are all normal. According to the technical requirements, adjust the working pressure, temperature, curing time cooling time of the wax press.

Remove the wax cylinder the insulation box install it in the wax press to release the wax mixed with gas at the upper end.

Put the abrasives on the surface of the wax press console, adjust the wax nozzle to make it consistent with the height of the wax injection mouth of the abrasives, check whether all the mandrel movable parts of the abrasives are appropriate, whether the opening closing of the abrasives are complete.

Open the abrasives spray them with little clinical diagnostic agent. Close, point to the wax spout.

Press the working button with both hands to restrain the wax mold.

Take out the mandrel, open the grinding tool, take off the wax mold carefully. Put it into the cooling circulating water the storage discharge plate for refrigeration as required. check the following shortcomings of the wax mold should be reported:

(1) Wax mould with serious bubbles; (2) wax mould with unclear water chestnut;

(3) Wax mold that can't be repaired due to deformation; (4) wax mold that is marked with the required specification.

Remove the residual wax on the abrasives, pay attention to that only air compression is used to blow away the wax chips film removers on the clinical diagnosis section the mandrel of the abrasives, it is forbidden to use the numerical control blade of metal materials to shovel scrape the concave mold core pulling. Be careful to damage the position of the grinding tool die.